2 0 11
PTAC - R410A Models
Packaged Terminal Air Conditioners
Packaged Terminal Heat Pumps
PD-ServMan-E (2-11)
Table of Contents
Important Safety Information ...........................................2-4
Capillary Tube Systems/Check Valve ..........................33
Reversing Valve — Description/Operation ...................34
Testing Coil ...................................................................34
Checking Reversing Valves .....................................34-35
Introduction .........................................................................4
General Product Features ..................................................5
HVAC Engineering Specifications ......................................6
Component identification ....................................................7
Accessories .....................................................................8-9
Unit Identification ..............................................................10
Chassis Specifications ......................................................11
Cooling and Heating Performance ..............................12-13
Electric Heat Data ............................................................14
Electrical Rating Tables ....................................................15
Power Cord Information ..............................................15-17
Reversing Valve
Touch Testing Heating/Cooling Cycle ..........................35
Procedure For Changing Reversing Valve ..............35-36
Compressor Checks .....................................................36
Locked Rotor Voltage Test ............................................36
Single Phase Connections ............................................36
Determine Locked Rotor Voltage ..................................36
Locked Rotor Amperage Test ........................................36
Single Phase Running & Locked Rotor Amperage ........36
Checking the Overload ..................................................36
External Overload ..........................................................37
Compressor Single Phase Resistance Test ...................37
Compressor Replacement ........................................38-39
Routine Maintenance .....................................................39
Troubleshooting Charts .............................................40-41
Wiring Diagrams for Wall Mounted Thermostats .......42-43
Wiring Diagram .........................................................42-44
RT6 Installation, Operation and Application Guide ...45-46
Thermistors Resistance Values ................................47-48
Warranty ...............................................................................49
2011 PTAC Exploded View ...............................................50
2011 PTAC Parts List - PDE Models ................................51
2011 PTAC Parts List - PDH Models ................................52
Remote Wall Thermostat / Low Voltage
Wire Connections ........................................................18-19
Digital Control Features ....................................................20
Digital Control Operation ..................................................21
Digital Control User Input Configuration ...........................22
Digital Control Diagnostics ................................................23
Malfunction Analysis ....................................................24-26
Components Testing ....................................................27-28
Refrigeration System Sequence of Operation ...................29
Sealed Refrigeration System Repairs ...............................30
Refrigerant Charging .........................................................31
Method Of Charging ..........................................................31
Undercharged Refrigerant Systems .............................31-32
Overcharged Refrigerant Systems ....................................32
Restricted Refrigerant Systems .........................................32
1
IMPORTANT SAFETY INFORMATION
The information contained in this manual is intended for use by a qualified service technician who is familiar
with the safety procedures required for installation and repair, and who is equipped with the proper tools and
test instruments required to service this product.
Installation or repairs made by unqualified persons can result in subjecting the unqualified person making
such repairs as well as the persons being served by the equipment to hazards resulting in injury or electrical
shock which can be serious or even fatal.
Safety warnings have been placed throughout this manual to alert you to potential hazards that may be
encountered. If you install or perform service on equipment, it is your responsibility to read and obey these
warnings to guard against any bodily injury or property damage which may result to you or others.
Your safety and the safety of others are very important.
We have provided many important safety messages in this manual and on your appliance. Always read
and obey all safety messages.
This is a safety Alert symbol.
This symbol alerts you to potential hazards that can kill or hurt you and others.
All safety messages will follow the safety alert symbol with the word “WARNING”
or “CAUTION”. These words mean:
You can be killed or seriously injured if you do not follow instructions.
WARNING
You can receive minor or moderate injury if you do not follow instructions.
CAUTION
All safety messages will tell you what the potential hazard is, tell you how to reduce the chance of injury,
and tell you what will happen if the instructions are not followed.
A message to alert you of potential property damage will have the
word “NOTICE”. Potential property damage can occur if instructions
are not followed.
NOTICE
2
PERSONAL INJURY OR DEATH HAZARDS
ELECTRICAL HAZARDS:
•
Unplug and/or disconnect all electrical power to the unit before performing inspections, maintenance,
or service.
•
•
•
Make sure to follow proper lockout/tag out procedures.
Always work in the company of a qualified assistant if possible.
Capacitors, even when disconnected from the electrical power source, retain an electrical charge
potential capable of causing electric shock or electrocution.
•
•
•
•
Handle, discharge, and test capacitors according to safe, established, standards, and approved
procedures.
Extreme care, proper judgment, and safety procedures must be exercised if it becomes necessary to
test or troubleshoot equipment with the power on to the unit.
Do not spray or pour water on the return air grille, discharge air grille, evaporator coil, control panel,
and sleeve on the room side of the air conditioning unit while cleaning.
Electrical component malfunction caused by water could result in electric shock or other electrically
unsafe conditions when the power is restored and the unit is turned on, even after the exterior is dry.
•
•
•
•
•
•
•
Never operate the A/C unit with wet hands.
Use air conditioner on a single dedicated circuit within the specified amperage rating.
Use on a properly grounded outlet only.
Do not remove ground prong of plug.
Do not cut or modify the power supply cord.
Do not use extension cords with the unit.
Follow all safety precautions and use proper and adequate protective safety aids such as: gloves,
goggles, clothing, adequately insulated tools, and testing equipment etc.
•
Failure to follow proper safety procedures and/or these warnings can result in serious injury or death.
REFRIGERATION SYSTEM HAZARDS:
•
•
•
Use approved standard refrigerant recovering procedures and equipment to relieve pressure before
opening system for repair.
Do not allow liquid refrigerant to contact skin. Direct contact with liquid refrigerant can result in minor
to moderate injury.
Be extremely careful when using an oxy-acetylene torch. Direct contact with the torch’s flame or hot
surfaces can cause serious burns.
•
•
•
Make sure to protect personal and surrounding property with fire proof materials.
Have a fire extinguisher at hand while using a torch.
Provide adequate ventilation to vent off toxic fumes, and work with a qualified assistant whenever
possible.
•
Always use a pressure regulator when using dry nitrogen to test the sealed refrigeration system for
leaks, flushing etc.
3
•
•
Make sure to follow all safety precautions and to use proper protective safety aids such as: gloves,
safety glasses, clothing etc.
Failure to follow proper safety procedures and/or these warnings can result in serious injury or death.
MECHANICAL HAZARDS:
•
Extreme care, proper judgment and all safety procedures must be followed when testing,
troubleshooting, handling, or working around unit with moving and/or rotating parts.
•
Be careful when, handling and working around exposed edges and corners of sleeve, chassis, and
other unit components especially the sharp fins of the indoor and outdoor coils.
•
•
Use proper and adequate protective aids such as: gloves, clothing, safety glasses etc.
Failure to follow proper safety procedures and/or these warnings can result in serious injury or death.
PROPERTY DAMAGE HAZARDS
FIRE DAMAGE HAZARDS:
•
•
•
•
•
•
•
Read the Installation/Operation Manual for this air conditioning unit prior to operating.
Use air conditioner on a single dedicated circuit within the specified amperage rating.
Connect to a properly grounded outlet only.
Do not remove ground prong of plug.
Do not cut or modify the power supply cord.
Do not use extension cords with the unit.
Failure to follow these instructions can result in fire and minor to serious property damage.
WATER DAMAGE HAZARDS:
•
Improper installation maintenance, or servicing of the air conditioner unit, or not following the above
Safety Warnings can result in water damage to personal items or property.
•
•
•
Insure that the unit has a sufficient pitch to the outside to allow water to drain from the unit.
Do not drill holes in the bottom of the drain pan or the underside of the unit.
Failure to follow these instructions can result in result in damage to the unit and/or minor to serious
property damage.
INTRODUCTION
This service manual is designed to be used in conjunction with the installation manuals provided with each unit.
This service manual was written to assist the professional HVAC service technician to quickly and accurately
diagnose and repair any malfunctions of this product.
This manual, therefore, will deal with all subjects in a general nature. (i.e. All text will pertain to all models).
IMPORTANT:
It will be necessary for you to accurately identify the unit you are
servicing, so you can be certain of a proper diagnosis and repair.
(See Unit Identification.)
4
General Product Features
Diamonblue seacoast protection protects the outdoor coil from harsh environments. Comes standard
on all models.
DIAMONBLUE
TECHNOLOGY
The new Friedrich PTAC uses a digital thermostat to accurately monitor the outdoor coil conditions to al-
low the heat pump to run whenever conditions are correct. Running the PTAC in heat pump mode saves
energy and reduces operating costs. The digital thermostat allows maximization of heat pump run time.
DIGITALDEFROST
THERMOSTAT
Heat pump models will automatically run the electric heater to quickly bring the room up to temperature
when initially energized, then return to heat pump mode. This ensures that the room is brought up to
temperature quickly without the usual delay associated with heat pump units.
INSTANT HEAT
HEAT PUMP MODE
of the setpoint. If necessary, the unit will cycle the electric heat to maintain the temperature. This feature
-
EVEN HEAT MONITORING
The owner may choose between fan cycling or fan continuous mode based on property preference. (Note:
Even heat monitoring and quiet start/stop fan delay only operate in fan cycle mode) Fan continuous mode is
SEPARATE HEAT/COOL
FAN CYCLE
CONTROL
energy by only operating the fan while the compressor or electric heater is operating. The ability to set the
fan cycling condition independently between heating and cooling mode will increase user comfort by
allowing the choice of only constantly circulating air in the summer or winter time. Unlike other PTAC
brands that only allow one selection.
In the event of a compressor failure in heat pump mode, the compressor may be locked out to provide
heat through the resistance heater. This feature ensures that even in the unlikely event of a compressor
failure, the room temperature can be maintained until the compressor can be serviced.
EMERGENCY
HEAT OVERRIDE
All Friedrich digital PTACs have low voltage terminals ready to connect a desk control energy manage-
ment system. Controlling the unit from a remote location like the front desk can reduce energy usage and
requires no additional accessories on the PTAC unit.
DESK CONTROL
READY
temperatures cause the indoor coil to freeze. When the indoor coil reaches 30°F, the compressor is
disabled and the fan continues to operate based on demand. Once the coil temperature returns to 45°F,
the compressor returns to operation.
INDOOR COIL
FROST SENSOR
The new Friedrich PD series units feature an indoor fan system design that reduces sound levels without
ULTRA QUIET
AIR SYSTEM
The Friedrich PTAC has been engineered so that all functional systems are optimized so that they work
together to deliver the highest possible performance.
HIGH EFFICIENCY
DUAL MOTOR
With Friedrich’s new dual-motor design the indoor motor can run at slower speeds which reduces sound
levels indoors.
-
ROTARYCOMPRESSOR
ciency.
Outdoor coil endplates made from stainless steel reduce corrosion on the outdoor coil common with other
coil designs.
STAINLESS STEEL
ENDPLATES
TOP -MOUNTED
ANTIMICROBIAL
AIR FILTERS
front cover.
Friedrich PTAC units are capable of introducing up to 75 CFM of outside air into the conditioned space.
The outdoor air passes through a washable mesh screen to prevent debris from entering the airstream.
FILTERED FRESH
AIR INTAKE
Friedrich PTAC units use environmentally-friendly refrigerant.
R-410A REFRIGERANT
5
Digital Packaged Terminal Air Conditioners & Heat Pumps
Cooling: 7600 – 15,000 Btuh
Heating: 7600 – 14500 Btuh (Heat Pump)
6824 – 17060 Btuh (Electric Heat)
Friedrich Models: PDE – Cooling with or without electric heat
PDH – Heat Pump with electric heat
All units shall be factory assembled, piped, wiredand fully charged with The unit must have the following energy saving and convenience
features built-in:
310 for air conditioners and ARI standard 380 for heat pumps. Units
shall be UL listed and carry a UL label. All units shall be factory run-
tested to check operation and be Friedrich or equivalent.
• Quiet start/stop fan delay
• Fan cycle control for cooling and heating independently
• Room freeze protection
The basic unit shall not exceed 16” high x 42” wide. Overall depth • Random compressor restart
of the unit from the rear of the Friedrich wall sleeve to the front of • Electronic temperature limiting
the decorative front cover shall not exceed 21 ¼”. The unit shall be
The PTAC must also offer the ability to be controlled by a remote wall-
designed so that room intrusion may be as little as 7 ½”. Installations
in walls deeper than 13 ¼” may be accomplished with the use of a
deep wall sleeve (PDXWSEXT). Unit shall draw in ambient air through
both sides of an outdoor architectural louver or grille measuring 42”
wide x 16” high and shall exhaust air out middle portion of the louver.
The architectural louver and wall sleeve shall be designed so that the
louver may be installed from the inside of the building.
mountedthermostat without additionalaccessories. Lowvoltageinputs
will include: C (common), R (24V power), Y (cooling), GL (fan low), GH
(fan high), W (heat) and O (reversing valve on PDH heat pumps only).
PTAC models shall use a single stage cool / single stage heat ther-
mostat. PTHP models shall use a single stage cool / two-stage heat
thermostat. An accessory thermostat must be available from the
manufacturer, RT6 or equivalent. The RT6 thermostat will provide
temperature setpoint, mode selection from cool, heat and fan modes.
The thermostat must also allow the selection of fan speed between
high and low speed.
REFRIGERATION SYSTEM – The refrigeration system shall be her-
metically sealed and consist of a rotary compressor that is externally
mounted on vibration isolators no smaller than 1 3/8” dia. x 1 ½” high;
condenser and evaporator coils constructed of copper tubes and
Other controls accessible without removal of the chassis shall include
fan cycle switch, fresh air vent control and emergency heat override
switch (heat pump only).
and have a drain pan capable of retaining 1 ½ gallons of condensate.
A tertiary condensate removal system shall also be incorporated for
ELECTRICAL CONNECTION– All PTAC/PTHP units shall come from
the factory with a power cord installed. All 230/208V power cords shall
feature a leakage current detection device on the plug head. All units
shall feature a 6-pin connector for removal of the power cord. The
power cord shall be interchangeable to allow changes to the heater
output based on the property/electrical requirements.
of the building as a safeguard against damage to the interior room.
INDOOR AIR HANDLING SECTION – The indoor air handling sec-
tion shall consist of a tangential blower wheel direct driven by a totally
enclosed motor. The air handling system shall be designed to minimize
fan must have three fan speeds that may be selected by the user.
GENERAL CONSTRUCTION – The wall sleeve shall be constructed
of 18-gauge Galvanized zinc-coated steel. It shall be prepared by
a process where it is zinc phosphate pretreated and sealed with a
throughout the room. The grille shall be reversible to allow a change
personal injury or damage to the unit.
cured for durability. The sleeve shall be shipped with a protective
weatherboard and a structural center support, and be insulated for
shipped separately and made from stamped or extruded anodized
aluminum. All louvers shall be in the horizontal plane.
and reusable by cleaning with water or by vacuuming.
clips. As an option the cover may be attached by two screws to pre-
vent tampering. The front panel will feature a contoured discharge
with no sharp corners.
The chassis shall have a built-in damper capable of providing at least
CORROSION PROTECTION – The unit shall have corrosion-resistant
fans, fan shroud and drain pan for corrosion protection and to prevent
rust on the side of the building below the outdoor louver. The unit shall
-
damper closed to ensure a proper seal.
OUTDOOR AIR HANDLING SECTION – The outdoor air section
shall consist of a single injection molded fan shroud that incorporates
the outdoor motor mount into a single piece for ease of service and
assembly. The outdoor motor shall be totally enclosed, ball-bearing,
permanently lubricated and directly drive the outdoor fan/slinger ring.
rioration. The outdoor coil shall have Diamonblue corrosion protection
applications including seacoast environments. All outdoor coils shall
also have stainless steel endplates to eliminate rusting of the endplates.
CONTROLS – Covered controls shall be accessible in a compartment
at least 7½” wide with the controls no deeper than 1 ¼” in the opening
to facilitate easy operation of the unit.
WARRANTY – The warranty is one year on all parts and 5 years on
the sealed system including compressor, indoor and outdoor coils and
refrigerant tubing.
The unit controls shall feature a soft blue LED readout that can display
either room temperature or setpoint temperature. The unit shall re-
ceive input from the digital control panel through push buttons labeled:
‘Cool’, ‘Heat’, ‘High Fan’, ‘Med Fan’, ‘Low Fan’,
When ‘Off’, the unit may be put directly into cooling or heating mode
by pressing the ‘Cool’ or ‘Heat’ button.
’, ‘ˆ’ and ‘Power’.
‡
6
Component Identification
Typical Unit Components and Dimensions
WALL SLEEVE
OUTDOOR GRILLE
DISCHARGE
GRILLE
FILTERS
CHASSIS
FRONT COVER
RETURN AIR GRILLE
PDXWS Wall Sleeve Dimensions:
16" H x 42" W x 13-¾" D
Front Cover Dimensions:
16" H x 42" W x 7-¾" D
Cut-Out Dimensions:
16-¼" x 42-¼"
7
Accessories
New Construction Accessories
WALL SLEEVE Galvanized zinc coated steel is prepared in an 11-step
PDXWS
oven for exceptional durability. The wall sleeve is insulated for sound
PDXWS
DEEP WALL SLEEVE EXTENSION For use when the wall is thicker
PDXWSEXT
than 13 1/4”deep. The wall sleeve may be special ordered through your
-
ments..
PDXWSEXT
GRILLE Standard, stamped aluminium, anodized to resist chalking and
oxidation.
PXGA
ARCHITECTURAL GRILLES Consist of heavy-gauge 6063-T5 alumi-
num alloy:
PXAA – Clear, extruded aluminum
PXBG – Beige acrylic enamel
PXSC – Also available in custom colors.
PXAA
PXBG
PXSC
PXGA
PXAA
CONDENSATE DRAIN KIT Attaches to the bottom of the wall sleeve for
PXDR10
-
nal draining. Recommended on all units to remove excess condensate.
Packaged in quantities of ten.
DECORATIVE SUBBASE Provides unit support for walls less than
PXSB
RT6
-
ing brackets for electrical accessories. Accepts circuit breaker, power
disconnect switch, or conduit kit.
DIGITAL REMOTE WALL THERMOSTAT Single stage cool, single
stage heat for PDE models or single stage cool, dual stage heat for
PDH model thermostat features high/low fan speed switch. Thermostat
is hard wired and can be battery powered or unit powered. Features
Friedrich PTACs and Vert-I-Paks.
REMOTE THERMOSTAT ESCUTCHEON KIT This kit contains ten
escutcheons that can be placed over the factory control buttons when
a remote wall mounted thermostat is used. The escutcheon directs the
guest to the wall thermostat for operation and retains the LED window to
display error codes and diagnostic information.
PDXRTA
PXSE
SLEEVE EXTENSION RETROFIT KIT Galvanized zinc coated steel,
2.4" sleeve extension attached to the room side of the sleeve to allow for
the installation of a PD-Series Friedrich PTAC in a T-Series sleeve.
LATERAL DUCT ADAPTER Attaches to the PTAC/PTHP unit and
provides a transition to direct up to 35% of the total CFM to a second-
ary room, either left or right of the unit. Kit includes duct plenum with
PDXDAA
PDXDEA
LATERAL DUCT EXTENSION A three-foot insulated plenum that at-
taches to the left or right side of the duct adapter. The extension can be
cut to length by the installer. Maximum allowable straight extension is 15
feet.
8
Accessories
New Construction Accessories
CONDUIT KIT WITH JUNCTION BOX Hard wire conduit kit with
PXCJA
junction box for 208/230V and 265V units (subbase not required). Kit
includes a means of quick disconnect for easy removal of the chassis.
*Required for 265V installations.
REPLACEMENT FILTER PACK These are original equipment return air
PXFTA
chassis).
9
UNIT IDENTIFICATION
PD HM0o7del NKumb3er CoSde F A
Series
Engineering Digit
Design Series
PD = P Series Digital PTAC
System
E = Cooling with or
without electric heat
H = Heat Pump with
Auxiliary Heat
Options
S = Standard
Nominal Cooling Capacity
07 = 7000 BTUh
Nominal Heater Size
(@ 230V or 265V)
0 = No Heater
2 = 2KW
09 = 9000 BTUh
12 = 12000 BTUh
15 = 15000 BTUh
3 = 3KW
5 = 5.0KW
Voltage
K = 208/230V - 1Ph. - 60Hz.
R = 265V - 1Ph. - 60Hz.
PTAC Serial Number Identification Guide
SERIAL NUMBER
A
A
A
M
00001
YEAR MANUFACTURED
LJ = 2009 AE = 2015
AK = 2010 AF = 2016
AA = 2011 AG = 2017
AB = 2012 AH = 2018
AC = 2013 AJ = 2019
AD = 2014
PRODUCTION RUN NUMBER
PRODUCT LINE
M = PTAC
MONTH MANUFACTURED
A = Jan
B = Feb
C = Mar
D = Apr
E = May
F = Jun
G = Jul
H = Aug
J = Sep
K = Oct
L = Nov
M = Dec
10
Chassis Specifications
PDE Series
PDE07K
PDE07R
PDE09K
PDE09R
PDE12K
PDE12R
PDE15K
PDE15R
PERFORMANCE DATA:
COOLING BTUh
7700/7600
640/620
12.0/12.2
1.7
7700
640
12.0
1.7
9000/8800
800/770
11.3/11.4
2.2
9000
800
11.3
2.2
12000/11800
1120/1120
10.7/10.5
2.7
12000
1120
10.7
2.7
15000/14600
1530/1510
9.8/9.7
15000
1530
9.8
POWER (WATTS)
EER
DEHUMIDIFICATION (pints/hr)
SENSIBLE HEAT RATIO
ELECTRICAL DATA:
VOLTAGE (1 PHASE, 60 Hz)
VOLT RANGE
3.2
3.2
0.84
0.84
0.81
0.81
0.67
0.67
0.65
0.65
230/208
253-187
2.8/3.0
0.97
265
292-239
2.4
230/208
253-187
3.7/3.9
0.99
265
292-239
3.7
230/208
253-187
5.1/5.3
0.99
265
292-239
4.8
230/208
253-187
6.7/7.5
0.99
265
292-239
5.9
CURRENT (AMPS)
POWER FACTOR
Compressor LRA
Compressor RLA
Fan motor horsepower
AIRFLOW DATA:
0.99
0.99
0.99
0.99
19.0
12.0
17.0
18.0
27.00
5.0
23.0
32.6
27.8
2.8
2.4
3.7
2.9
4.3
6.6
5.6
0.024
0.024
0.029
0.029
0.031
0.031
0.031
0.031
INDOOR CFM, HIGH
INDOOR CFM, MED
INDOOR CFM, LOW
VENT CFM
345/315
320/290
295/265
75
345
320
295
75
360/345
330/305
300/270
75
360
330
300
75
360/350
330/310
310/280
75
360
330
310
75
385/375
360/330
320/290
75
385
360
320
75
PHYSICAL DATA:
DIMENSIONS
16x42x13 3/4 16x42x13 3/4 16x42x13 3/4 16x42x13 3/4 16x42x13 3/4
16x42x13 3/4
116
16x42x13 3/4
16x42x13 3/4
119
NET WEIGHT
106
126
106
126
111
131
111
131
116
136
119
139
38.1
SHIPPING WEIGHT
R-410A CHARGE (oz)
Dim.s w/ Pkg.
136
139
23.63
24.69
33.51
33.51
35.27
35.98
40.21
19.75x23x 43.5 (all models)
PDH Series
PDH07K
PDH07R
PDH09K
PDH09R
PDH12K
PDH12R
PDH15K
PDH15R
PERFORMANCE DATA:
COOLING BTUh
7700/7600
640/620
12.0/12.2
6300/6100
540/530
3.4/3.4
7700
640
12
9000/8800
800/770
11.3/11.4
8100/7900
720/770
3.3/3.3
9000
800
11.3
8100
720
3.3
12000/11800
1120/1120
10.7/10.5
10700/10500
1010/990
3.1/3.1
12000
1120
10.7
10700
1010
3.1
14500/14200
1480/1460
9.8/9.7
14500
1480
9.8
POWER (WATTS) cool
EER
REVERSE HEATING BTUh
POWER (WATTS) HEAT
COP
6300
540
3.4
13300/13000
1300/1270
3.0/3.0
13300
1300
3
DEHUMIDIFICATION (pints/hr)
SENSIBLE HEAT RATIO
ELECTRICAL DATA:
VOLTAGE (1 PHASE, 60 Hz)
VOLT RANGE
1.7
1.7
2.2
2.2
2.7
2.7
3.2
3.2
0.84
0.84
0.81
0.81
0.67
0.67
0.65
0.65
230/208
253-187
2.8/3.0
2.4/2.5
0.97
265
292-239
2.4
230/208
253-187
3.7/3.9
3.4/3.8
0.99
265
292-239
3.7
230/208
253-187
5.1/5.3
4.5/4.7
0.99
265
292-239
4.8
230/208
253-187
6.7/7.5
5.8/6.2
0.98
265
292-239
5.7
CURRENT (AMPS)
REVERSE HEAT. Amps
POWER FACTOR
Compressor LRA
2.1
3.4
4.5
5.0
0.99
12.0
2.4
0.99
19.0
3.2
0.99
23.0
4.3
0.98
26.0
5.3
19.0
18.5
27.00
5.0
36.0
Compressor RLA
2.8
3.6
6.5
Fan motor horsepower
AIRFLOW DATA:
0.024
0.024
0.029
0.029
0.031
0.031
0.031
0.031
INDOOR CFM, HIGH
INDOOR CFM, MED
INDOOR CFM, LOW
VENT CFM
345/315
320/290
295/265
75
345
320
295
75
360/345
330/305
300/270
75
360
330
300
75
360/350
330/310
310/280
75
360
330
310
75
420/390
410/380
380/350
75
385
360
320
75
PHYSICAL DATA:
DIMENSIONS
16x42x13.5
108
16x42x13.5 16x42x13.5
16x42x13.5
113
16x42x13.5
118
16x42x13.5
118
16x42x13.5
121
16x42x13.5
123
NET WEIGHT
108
128
113
133
SHIPPING WEIGHT
R-410A CHARGE (oz)
128
133
138
138
141
143
23.63
24.69
33.51
35.27
35.27
35.98
39.86
36.33
250 V Receptacles and Fuse Types
AMPS
15
20
30
HEATER SIZE
0, 2.0 kW 3.0 kW
5.0 kW
RECEPTACLE
11
Cooling & Heating Performance
PDE 230V - Extended Cooling Performance
OUTDOOR DRY BULB TEMP. (DEGREES F AT 40% R.H.)
75
85
95
105
110
INDOOR WET BULB TEMP. (DEGREES F AT 80 F D.B.)
72
9055
522
67
8709
531
62
8062
536
72
8624
569
2.5
0.54
10080
711
3.3
0.5
13440
996
4.5
67
8131
575
62
7500
582
72
8285
640
67
7700
640
2.80
0.77
9000
800
3.70
0.71
12000
1120
5.10
0.71
15000
1530
6.70
62
6815
640
72
7762
692
67
6892
691
62
6075
693
3
0.99
7101
866
4
0.92
9468
1213
5.5
0.92
11835
1657
7.2
72
6907
755
67
5944
755
3.3
0.87
6948
943
4.3
62
5251
758
BTUh
WATTS
AMPS
SHR
BTUh
WATTS
AMPS
SHR
BTUh
WATTS
AMPS
SHR
BTUh
WATTS
AMPS
SHR
PDE07
PDE09
PDE12
PDE15
2.3
2.3
2.4
2.5
2.5
2.8
2.8
3
3
3.3
3.3
0.53
10584
653
0.72
10179
663
0.96
9423
670
0.74
9504
718
0.98
8766
727
0.54
9684
800
3.7
0.5
12912
1120
5.1
0.99
7965
800
0.55
9072
865
0.81
8055
864
0.58
8073
943
0.99
6138
947
3.1
3.1
3.1
3.3
3.3
3.7
4
4
4.3
4.4
0.49
14112
914
0.66
13572
928
0.89
12564
939
0.69
12672
1006
4.6
0.69
15840
1374
6
0.91
11688
1018
4.6
0.91
14610
1391
6
0.91
10620
1120
5.1
0.91
13275
1530
6.7
0.51
12096
1211
5.5
0.51
15120
1654
7.2
0.75
10740
1210
5.5
0.75
13425
1652
7.2
0.54
10764
1320
6
0.54
13455
1804
7.9
0.8
0.91
8184
1326
6
0.91
10230
1812
7.9
9264
1320
6
4.2
4.2
4.3
0.49
17640
1248
5.5
0.66
16965
1268
5.6
0.89
15705
1282
5.6
0.5
0.5
0.8
16800
1360
6
16140
1530
6.7
11580
1804
7.9
0.47
0.63
0.85
0.48
0.66
0.87
0.48
0.87
0.49
0.72
0.88
0.51
0.77
0.87
0.68
RATING POINT
ARI 310/380
PDH 230V - Extended Cooling Performance
OUTDOOR DRY BULB TEMP. (DEGREES F AT 40% R.H.)
75
85
95
105
110
INDOOR WET BULB TEMP. (DEGREES F AT 80 F D.B.)
72
9055
522
67
8709
531
62
8062
536
72
8624
569
67
8131
575
62
7500
582
72
8285
640
67
7700
640
2.80
0.77
9000
800
3.70
0.71
12000
1120
5.10
0.71
14500
1480
6.6
62
6815
640
72
7762
692
3
0.55
9072
865
4
0.51
12096
1211
5.5
0.51
14616
1600
7.1
67
6892
691
62
6075
693
3
0.99
7101
866
4
0.92
9468
1213
5.5
0.92
11441
1603
7.1
72
6907
755
67
5944
755
3.3
0.87
6948
943
4.3
62
5251
758
3.3
0.99
6138
947
4.4
0.91
8184
1326
6
0.91
9889
1752
7.7
BTUh
WATTS
AMPS
SHR
BTUh
WATTS
AMPS
SHR
BTUh
WATTS
AMPS
SHR
BTUh
WATTS
AMPS
SHR
PDH07
PDH09
PDH12
PDH15
2.3
2.3
2.4
2.5
2.5
2.5
2.8
2.8
3
3.3
0.53
10584
653
0.72
10179
663
0.96
9423
670
0.54
10080
711
3.3
0.5
13440
996
4.5
0.74
9504
718
0.98
8766
727
0.54
9684
800
3.7
0.5
12912
1120
5.1
0.99
7965
800
0.81
8055
864
0.58
8073
943
3.1
3.1
3.1
3.3
3.3
3.7
4
4.3
0.49
14112
914
0.66
13572
928
0.89
12564
939
0.69
12672
1006
4.6
0.69
15312
1329
5.9
0.91
11688
1018
4.6
0.91
14123
1345
5.9
0.91
10620
1120
5.1
0.91
12833
1480
6.6
0.75
10740
1210
5.5
0.75
12978
1598
7.1
0.54
10764
1320
6
0.54
13007
1745
7.7
0.8
9264
1320
6
4.2
4.2
4.3
0.49
17052
1208
5.4
0.66
16400
1227
5.5
0.89
15182
1240
5.5
0.5
0.5
0.8
16240
1316
5.9
15602
1480
6.5
11194
1745
7.7
0.48
0.65
0.88
0.49
0.68
0.89
0.49
0.9
0.5
0.74
0.9
0.53
0.79
0.9
0.70
RATING POINT
ARI 310/380
Extended Heating Performance
OUTDOOR DRY BULB TEMP. (DEGREES F)
37
42
5540
518
47
52
6900
549
57
7620
580
BTUh
5250
509
2.3
6300
540
WATTS
AMPS
BTUh
PDH07
PDH09
PDH12
PDH15
2.4
2.5
2.6
2.4
6005
647
3.3
6399
656
8647
725
9245
735
8100
720
WATTS
AMPS
BTUh
3.3
3.4
3.5
3.4
7726
883
4
8531
917
11278
1039
4.7
12234
1073
4.9
10700
1010
4.5
WATTS
AMPS
BTUh
4.1
10530
1197
5.3
10850
1212
5.4
14550
1377
6.1
15940
1439
6.3
13300
1300
WATTS
AMPS
5.8
RATING POINT
ARI 310/380
12
Cooling & Heating Performance
PDE 265V - Extended Cooling Performance
OUTDOOR DRY BULB TEMP. (DEGREES F AT 40% R.H.)
75
85
95
105
110
INDOOR WET BULB TEMP. (DEGREES F AT 80 F D.B.)
72
7762
692
67
6892
691
62
6075
693
72
6907
755
67
5944
755
62
5251
758
72
9055
522
67
8709
531
62
8062
536
2
72
8624
569
67
8131
575
62
7500
582
72
8285
640
67
7700
640
62
6815
640
BTUh
WATTS
AMPS
SHR
PDE07
PDE09
PDE12
PDE15
2.6
2.6
2.6
2.8
2.8
2.8
2
2
2.1
2.1
2.2
2.4
2.4
2.40
0.77
9000
800
0.55
9072
865
0.81
8055
864
0.99
7101
866
0.58
8073
943
0.87
6948
943
0.99
6138
947
0.53
10584
653
0.72
10179
663
0.96
9423
670
3.1
0.54
10080
711
0.74
9504
718
0.98
8766
727
0.54
9684
800
0.99
7965
800
BTUh
WATTS
AMPS
SHR
4
4
4
4.3
4.3
4.4
3.1
3.1
3.3
3.3
3.3
3.7
3.7
3.70
0.71
12000
1120
4.80
0.71
15000
1530
5.90
0.51
12096
1211
5.2
0.75
10740
1210
5.2
0.92
9468
1213
5.2
0.54
10764
1320
5.6
0.8
0.91
8184
1326
5.7
0.49
14112
914
0.66
13572
928
0.89
12564
939
4
0.5
0.69
12672
1006
4.3
0.91
11688
1018
4.3
0.5
0.91
10620
1120
4.8
9264
1320
5.6
BTUh
WATTS
AMPS
SHR
13440
996
12912
1120
4.8
4
4
4.3
0.51
15120
1654
6.3
0.75
13425
1652
6.3
0.92
11835
1657
6.4
0.54
13455
1804
6.9
0.8
0.91
10230
1812
7
0.49
17640
1248
4.9
0.66
16965
1268
4.9
0.89
15705
1282
5
0.5
0.69
15840
1374
5.3
0.91
14610
1391
5.3
0.5
0.91
13275
1530
5.9
11580
1804
6.9
BTUh
WATTS
AMPS
SHR
16800
1360
5.3
16140
1530
5.9
0.49
0.72
0.88
0.51
0.77
0.87
0.47
0.63
0.85
0.48
0.66
0.87
0.48
0.87
0.68
RATING POINT
ARI 310/380
PDH 265V - Extended Cooling Performance
OUTDOOR DRY BULB TEMP. (DEGREES F AT 40% R.H.)
105
110
75
85
95
INDOOR WET BULB TEMP. (DEGREES F AT 80 F D.B.)
72
9055
522
67
8709
531
62
8062
536
2
72
8624
569
67
8131
575
62
7500
582
72
8285
640
67
7700
640
62
6815
640
72
7762
692
67
6892
691
62
6075
693
2.6
72
6907
755
67
5944
755
2.8
62
5251
758
2.8
BTUh
WATTS
AMPS
SHR
PDH07
PDH09
PDH12
PDH15
2
2
2.1
2.1
2.2
2.4
2.4
2.6
2.6
2.8
2.40
0.77
9000
800
0.53
10584
653
0.72
10179
663
0.96
9423
670
3.1
0.54
10080
711
0.74
9504
718
0.98
8766
727
0.54
9684
800
0.99
7965
800
0.55
9072
865
0.81
8055
864
0.99
7101
866
4
0.58
8073
943
0.87
6948
943
4.3
0.99
6138
947
4.4
BTUh
WATTS
AMPS
SHR
3.1
3.1
3.3
3.3
3.3
3.7
3.7
4
4
4.3
3.70
0.71
12000
1120
4.80
0.71
14500
1480
5.7
0.49
14112
914
0.66
13572
928
0.89
12564
939
4
0.5
0.69
12672
1006
4.3
0.91
11688
1018
4.3
0.5
0.91
10620
1120
4.8
0.51
12096
1211
5.2
0.75
10740
1210
5.2
0.92
9468
1213
5.2
0.54
10764
1320
5.6
0.8
0.91
8184
1326
5.7
BTUh
WATTS
AMPS
SHR
13440
996
12912
1120
4.8
9264
1320
5.6
4
4
4.3
0.49
17052
1208
4.7
0.66
16400
1227
4.7
0.89
15182
1240
4.8
0.5
0.69
15312
1329
5.1
0.91
14123
1345
5.1
0.5
0.91
12833
1480
5.7
0.51
14616
1600
6.1
0.75
12978
1598
6.1
0.92
11441
1603
6.2
0.54
13007
1745
6.7
0.8
0.91
9889
1752
6.7
BTUh
WATTS
AMPS
SHR
16240
1316
5.1
15602
1480
5.7
11194
1745
6.7
0.48
0.65
0.88
0.49
0.68
0.89
0.49
0.9
0.5
0.74
0.9
0.53
0.79
0.9
0.70
RATING POINT
ARI 310/380
Extended Heating Performance
OUTDOOR DRY BULB TEMP. (DEGREES F)
37
42
5540
518
47
6300
540
52
6900
549
57
7620
580
BTUh
5250
509
2.3
WATTS
AMPS
BTUh
PDH07
PDH09
PDH12
PDH15
2.4
2.5
2.6
2.4
6005
647
3.3
6399
656
8647
725
9245
735
8100
720
WATTS
AMPS
BTUh
3.3
3.4
3.5
3.4
7726
883
4
8531
917
11278
1039
4.7
12234
1073
4.9
10700
1010
4.5
WATTS
AMPS
BTUh
4.1
10530
1197
4.5
10850
1212
4.6
14550
1377
5.3
15940
1439
5.5
13300
1300
WATTS
AMPS
5
RATING POINT
ARI 310/380
13
Electric Heat Data
Electric Heat Data
PDE07K0
PDE/PDH07K
PDE/PDH07R
HEATER WATTS
0 Kw
2000
230
6824
8.9
1635
208
5580
7.9
3000
230
2450
208
2000
3000
VOLTAGE
230/208
265
HEATING BTUh
0
0
10236
13.2
16.8
20
8360
12.2
15.6
20
6824
7.6
9.6
15
10236
11.4
14.6
20
HEATING CURRENT (AMPS)
MINIMUM CIRCUIT AMPACITY
BRANCH CIRCUIT FUSE (AMPS)
4.0
15
11.4
15
10.0
15
Electric Heat Data
PDE09K0
PDE/PDH09K
PDE/PDH09R
3000
HEATER WATTS
0 Kw
2000
230
6824
8.9
1635
208
5580
7.9
3000
230
2450
208
5000
230
4090
208
2000
5000
VOLTAGE
230/208
265
HEATING BTUh
0
0
10236
13.2
16.8
20
8360
12.2
15.6
20
17060
21.5
27.2
30
13960
20.5
26.0
30
6824
7.6
9.8
15
10236
11.4
17060
19.0
24.1
30
HEATING CURRENT (AMPS)
MINIMUM CIRCUIT AMPACITY
BRANCH CIRCUIT FUSE (AMPS)
5.2
15
11.4
15
10.0
15
14.6
20
Electric Heat Data
PDE12K0
PDE/PDH12K
PDE/PDH12R
3000
HEATER WATTS
0 Kw
2000
230
6824
8.9
1635
208
5580
7.9
3000
230
2450
208
5000
230
4090
208
2000
5000
VOLTAGE
230/208
265
HEATING BTUh
0
0
10236
13.2
16.8
20
8360
12.2
15.6
20
17060
21.5
27.2
30
13960
20.5
26.0
30
6824
7.6
9.8
15
10236
11.4
17060
19.0
24.1
30
HEATING CURRENT (AMPS)
MINIMUM CIRCUIT AMPACITY
BRANCH CIRCUIT FUSE (AMPS)
7.1
15
11.4
15
10.0
15
14.6
20
Electric Heat Data
PDE15K0
PDE/PDH15K
PDE/PDH15R
3000
HEATER WATTS
0 Kw
2000
230
6824
8.9
1635
208
5580
7.9
3000
230
2450
208
5000
230
4090
208
2000
5000
VOLTAGE
230/208
265
HEATING BTUh
0
0
10236
13.2
16.8
20
8360
12.2
15.6
20
17060
21.5
27.2
30
13960
20.5
26.0
30
6824
7.6
9.8
15
10236
11.4
17060
19.0
24.1
30
HEATING CURRENT (AMPS)
MINIMUM CIRCUIT AMPACITY
BRANCH CIRCUIT FUSE (AMPS)
9.1
15
11.4
15
10.0
15
14.6
20
14
ELECTRICAL RATING TABLES
Use ONLY wiring size recommended for
single outlet branch circuit.
WARNING
WIRE SIZE
Use ONLY type and size fuse or HACR
circuit breaker indicated on unit’s rating
plate. Proper current protection to the unit
is the responsibility of the owner. NOTE:
A time delay fuse is provided with 265V
units.
ELECTRIC SHOCK HAZARD
FUSE/CIRCUIT
BREAKER
Turn off electric power before service or
installation. All electrical connections and
wiring MUST be installed by a qualified
electrician and conform to the National
Electrical Code and all local codes which
have jurisdiction. Failure to do so could result
in serious personal injury or death.
Unit MUST be grounded from branch
circuit through service cord to unit, or
through separate ground wire provided
on permanently connected units. Be sure
that branch circuit or general purpose
outlet is grounded. The field supplied
outlet must match plug on service cord
and be within reach of service cord. Refer
to Table 1 for proper receptacle and fuse
type. Do NOT alter the service cord or
plug. Do NOT use an extension cord.
NOTE: Use Copper Conductors ONLY. Wire sizes
are per NEC, check local codes for overseas applica-
tions.
GROUNDING
Table 1
250 V Receptacles and Fuse Types
AMPS
15
20*
30
30
The field supplied outlet must match plug
on service cord and be within reach of
service cord. Refer to Table 1 for proper
receptacle and fuse type. Do NOT alter
the service cord or plug. Do NOT use an
extension cord.
RECEPTACLE
RECEPTACLE
WIRE SIZING
TIME-DELAY TYPE FUSE
(or HACR circuit breaker)
15
20
HACR – Heating, Air Conditioning, Refrigeration
May be used for 15 Amp applications if fused for 15 Amp
NOTE: 265 volt units are hard wired.
Use recommended wire size given
in Table 2 and install a single branch
circuit. All wiring must comply with local
and national codes. NOTE: Use copper
conductors only.
*
Table 2
Recommended branch circuit wire sizes*
NAMEPLATE / MAXIMUM
CIRCUIT BREAKER SIZE
AWG WIRE SIZE**
15
20
30
14
12
10
AWG – American Wire Gauge
Single circuit from main box
*
** Based on copper wire, single insulated conductor at 60°C
POWER CORD INFORMATION (230/208V MODELS ONLY)
All Friedrich 230/208V PTAC units are shipped from the
factory with a Leakage Current Detection Interrupter (LCDI)
equipped power cord. The LCDI device meets the UL and
NEC requirements for cord connected air conditioners
Typical LCDI Devices
TEST
effective August 2004.
RESET
TEST
RESET
To test your power supply cord:
WARNING
TEST BEFORE EACH USE
1. PRESS RESET BUTTON
2. PLUG LCDI INTO POWER
RECEPTACLE
1. Plug power supply cord into a grounded 3 prong outlet.
WARNING
TEST BEFORE EACH USE
3. PRESS TEST BUTTON,
1. PRESS RESET BUTTON
RESET BUTTON SHOULD
2. PLUG LCDI INTO POWER
POP UP
RECEPTACLE
2. Press RESET.
4. PRESS TEST BUTTON,
FOR USE
DO NOT USE IF ABOVE TEST
FAILS
3. PRESS TEST BUTTON,
RESET BUTTON SHOULD
POP UP
3. Press TEST (listen for click; Reset button trips and pops
out).
4. PRESS TEST BUTTON,
FOR USE
DO NOT USE IF ABOVE TEST
FAILS
WHEN GREEN LIGHT IS ON
IT IS WORKING PROPERLY
WHEN GREEN LIGHT IS ON
IT IS WORKING PROPERLY
4. Press and release RESET (listen for click; Reset button
latches and remains in). The power supply cord is ready for
operation.
NOTE: The LCDI device is not intended to be used as a
switch.
15/20A LCDI Device
30A LCDI Device
Once plugged in the unit will operate normally without the
need to reset the LCDI device. If the LCDI device trips and
FRP014
15
Model
PDE07K
Heater kW
0.0
Power Cord Kit
PXPC23000
PXPC23015
STD
Voltage
230/208
230/208
230/208
230/208
230/208
230/208
230/208
230/208
230/208
230/208
230/208
230/208
230/208
230/208
230/208
265
Amperage
Receptacle
NEMA.6-15r
NEMA.6-15r
NEMA.6-20r
NEMA.6-15r
NEMA.6-15r
NEMA.6-20r
NEMA.6-30r
NEMA.6-15r
NEMA.6-15r
NEMA.6-20r
NEMA.6-30r
NEMA.6-15r
NEMA.6-15r
NEMA.6-20r
NEMA.6-30r
NEMA.6-15r
NEMA.6-20r
NEMA.6-15r
NEMA.6-20r
NEMA.6-30r
NEMA.6-15r
NEMA.6-20r
NEMA.6-30r
NEMA.6-15r
NEMA.6-20r
NEMA.6-30r
15
15
20
15
15
20
30
15
15
20
30
15
15
20
30
15
20
15
20
30
15
20
30
15
20
30
PDE/PDH07K
2.0
3.0
PDE09K
0.0
PXPC23000
PXPC23015
STD
PDE/PDH09K
2.0
3.0
5.0
PXPC23030
PXPC23000
PXPC23015
STD
PDE12K
0.0
PDE/PDH12K
2.0
3.0
5.0
PXPC23030
PXPC23000
PXPC23015
PXPC23020
STD
PDE15K
0.0
PDE/PDH15K
2.0
3.0
5.0
PDE/PDH07R
PDE/PDH09R
2.0
PXPC26515
STD
3.0
265
2.0
PXPC26515
STD
265
3.0
265
5.0
PXPC26530
PXPC26515
STD
265
PDE/PDH12R
PDE/PDH15R
2.0
265
3.0
265
5.0
PXPC26530
PXPC26515
PXPC26520
STD
265
2.0
265
3.0
265
5.0
265
To install the line voltage power leads and conduit
to chassis, follow the instructions below.
PXCJA Conduit Kit is required with this setup.
Electrical Wiring for 265 Volt
Models
Power Cord Installation
All 265V PTAC/PTHP units come with a factory installed non-LCDI
power cord for use in a subbase. If the unit is to be hard-wired refer to
the instructions below.
1. Follow the removal process of the chassis’s junction box.
listed in the installation manual (Figure 25, step 2, page 19).
2. .Prepare the 265V (or 230V) power cord for connection to the chas-
sis’ power cord connector by cutting the cord to the appropriate
length (Figure15). Power cord harness selection shown on Table
above.
NOTE:
It is recommended that the PXSB subbase assembly, the
PXCJA conduit kit (or equivalent) be installed on all hardwire
units. If installing a
mounted unit, make sure the
chassis can be removed from the sleeve for service and
maintenance.
WARNING
Electrical Shock Hazard
Turn off electrical power before service
or installation.
ALL electrical connections and wiring
MUST be installed by a qualified
electrician and conform to the National
Code and all local codes which have
jurisdiction.
Failure to do so can result in property
damage, personal injury and/or death.
16
TO CHASSIS JUNCTION
STRAIGHT
CONNECTOR
WALL CONNECTION
JUNCTION
BOX
4.0 IN.
GROUND
SCREW
GROUND
WIRE
HARNESS
COVER
SCREWS
18.0 IN.
JUNCTION
BOX COVER
EXPOSE
WIRES
(1.0 IN.)
FRP033
TRIM HARNESS
TO LENGTH
LEADING SIDE FOR
WIRE HARNESS INSERTION
LOCKNUT
SPACER
SPACER
STRIP WIRE ENDS (0.5 IN.)
TO WALL JUNCTION
CHASSIS
JUNCTION
BOX
FRP032
3. Route the cut ends of harness through the conduit connector
assembly and conduit sleeve. Be sure to use the supplied
conduit bushing to prevent damage to the cord by the conduit.
CONDUIT
CONNECTOR
The cord should pass through the Locknut, Spacer, Chassis
Junction Box, Conduit Connector, Bushing, then the Conduit
Sleeve. Refer to wire harness insertion diagram.
4. Route the cut ends of the power cord through the elbow connector
at the other end of the conduit. Tighten screws on elbow connector
to secure conduit sleeve.
BUSHING
CONDUIT
SLEEVE
5. Fasten and secure the elbow connector to the wall junction box
cover with locknut. Place and mount the wall junction box with
the four wall mounting screws making sure to pass the wall lines
through the junction box. Connect and join all wall lines with the
stripped ends using wire nuts. Tighten both screws of the wall
junction box cover to junction box.
EXITING SIDE FOR
WIRE HARNESS
FRP034
17
To control the unit with a wall mounted thermostat
follow the steps below:
Remote Control Thermostat
Installation
1. Unplug the unit before doing any work.
2. With the front.cover removed locate the dip switches located below
the Smart Center control panel. Switch Dip switch 2 to the up on
'ON' position.
Install Thermostat
1. Approximately 5 ft. from the
2. Close to or in a frequently used room, preferably on an inside wall.
3. On a section of wall without pipes or ductwork.
3. Remove the low voltage terminal block from the unit.
4. Connect the corresponding terminals from the wall thermostat to
the terminal block.
The Thermostat should NOT be mounted:
5. Replace the terminal block on the unit.
6. Restore power to the unit.
1. Close to a window, on an outside wall, or next to a door leading
outside.
2. Where it can be exposed to direct sunlight or heat, such as the sun,
7. The unit is now controlled by the wall thermostat only.
a lamp,
or any temperature radiating object which
may cause a false reading.
8. If the accessory escutcheon kit (PDXRTA) is to be used, install it
over the existing control panel.
3. Close to or in the direct
of supply registers and/or return
air grilles.
NOTE:.
The unit mounted controls no longer control the unit. To restore
the unit mounted controls move dip switch 2 to the down or
'OFF' position.
4. Any areas with poor air circulation, such as a corner, behind a
door, or an alcove.
Remote Thermostat and Low
Voltage Control Connections
Remote Thermostat
Thermostat Connections
R
= 24V Power from Unit
Y
= Call for Cooling
W = Call for Heating
= Reversing Valve Energized in cooling mode (PDH Models Only)
All Friedrich PD model PTAC units are factory
to be controlled
O
by either the chassis mounted Smart Center or a 24V remote wall mounted
thermostat. The thermostat may be auto or manual changeover as long as
GL = Call for Low Fan
GH = Call for High Fan
the control
matches that of the PTAC unit.
C
= Common Ground
NOTE:
All PDE models require a single stage cool, single stage heat.
thermostat. All PDH models require a single stage cool, dual.
stage heat thermostat with an O reversing valve control. The
*If only one G terminal is present on thermostat connect to GL for low
speed fan or to GH for high speed fan operation.
Friedrich RT6 thermostat can be
for either model.
Control board with optional PDXRT escutcheon kit installed
FRP029
18
Desk Control Terminals
The Friedrich PD model PTAC has built-in provisions for connection to an
external switch to control power to the unit. The switch can be a central
desk control system or even a normally open door switch.
WARNING
Electrical Shock Hazard
Turn off electrical power before service
or installation.
For desk control operation connect one side of the switch to the D1 terminal
and the other to the D2 terminal. Whenever the switch closes the unit
operation will stop.
ALL electrical connections and wiring
MUST be installed by a qualified
electrician and conform to the National
Code and all local codes which have
jurisdiction.
Improper connection of the thermostat
control wiring and/or tampering with the
units internal wiring may result in property
damage, personal injury or death.
NOTE:
The desk control system and switches must be
supplied.
Energy Management
Sometimes known as Front Desk Control, an input is provided so that the
unit can be manually disabled from a remote location. If the unit detects
24Vac on this input, it will automatically turn itself off. If no voltage is
detected on the input, the unit will run normally.
NOTE:
It is the installer's responsibility to ensure that all control.wiring
connections are made in accordance with the installation
instructions. Improper connection of the thermostat control
wiring and/or tampering with the unit's internal wiring can
void the equipment warranty. Other manufacturer's PTACs
and even older Friedrich models may have different control
wire connections. Questions concerning proper connections
to the unit should be directed to Friedrich.
19
FRIEDRICH DIGITAL CONTROL FEATURES
The new Friedrich digital PTAC has state of the art features to improve guest comfort, indoor air quality and conserve
energy. Through the use of specifically designed control software for the PTAC industry Friedrich has accomplished
what other Manufacturer’s have only attempted – a quiet, dependable, affordable and easy to use PTAC.
Below is a list of standard features on every Friedrich PTAC and their benefit to the owner.
By digitally monitoring desired room temperature the room is controlled more precisely than conventional
systems. The large, easy to read LED display can show either set-point or actual room temperature as
selected by owner.
Digital Temperature
Readout
When the unit is powered off the unit can be returned directly to heating or cooling mode by pressing the
‘Heat’ or ‘Cool’ buttons without the confusing power up sequence of some controls. One-touch control
takes guess-work out of unit control delivering a more enjoyable experience and eliminating front-desk
calls.
One-Touch
Operation
By having separate control buttons and indicators for both fan and mode settings the Friedrich digital con-
trol eliminates the confusion of previous digital PTACs. The accurate temperature setting provides greater
guest comfort than other systems.
Individual Mode and
Fan Control Buttons
The fan start and stop delays prevent abrupt changes in room acoustics due to the compressor energizing
or stopping immediately. Upon call for cooling or heating the unit fan will run for five seconds prior to en-
ergizing the compressor. Also, the fan off delay allows for “free cooling” by utilizing the already cool indoor
coil to its maximum capacity by running for 30 seconds after the compressor.
Quiet Start/Stop
Fan Delay
Some applications require the use of a wall mounted thermostat. All new Friedrich PTACs may be switched
from unit control to remote thermostat control easily without the need to order a special model or acces-
sory kit.
Remote Thermostat
Operation
Wireless Remote
Control Ready
Guests can adjust the temperature and mode of the unit through the use of an optional hand held wireless
remote, improving guest comfort and relaxation.
The new Friedrich digital PTAC features a self diagnostic program that can alert maintenance to compo-
nent failures or operating problems. The internal diagnostic program saves properties valuable time when
diagnosing running problems.
Internal Diagnostic
Program
The self diagnosis program will also store error codes in memory if certain conditions occur and correct
themselves such as extreme high or low operating conditions or activation of the room freeze protection
feature. Storing error codes can help properties determine if the unit faced obscure conditions or if an error
occurred and corrected itself.
Service Error Code
Storage
The on-board processor monitors time between demand cycles (heat or cool) and will cycle the fan every
9 minutes to sample the room condition and determine if the desired conditions are met. This allows the
room to have similar benefi ts to a remote mounted stat without the complication or cost of a wall mounted
thermostat.
Constant Comfort
Room Monitoring
Electronic
Temperature
Limiting
By limiting the operating range the property can save energy by eliminating “max cool” or “max heat” situ-
ations common with older uncontrolled systems. The new electronic control allows owners to set operating
ranges for both heating and cooling independently of one another.
When the PTAC senses that the indoor room temperature has fallen to 40°F the unit will cycle on high fan
and the electric strip heat to raise the room temperature to 46°F then cycle off again. This feature works
regardless of the mode selected and can be turned off. The control will also store the Room Freeze cycle
in the service code memory for retrieval at a later date. This feature ensures that unoccupied rooms do not
reach freezing levels where damage can occur to plumbing and fixtures.
Room Freeze
Protection
Multiple compressors starting at once can often cause electrical overloads and premature unit failure.
The random restart delay eliminates multiple units from starting at once following a power outage or initial
power up. The compressor delay will range from 180 to 240 seconds.
Random
Compressor Restart
20
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DIGITAL CONTROL DIAGNOSTICS
The chart below lists malfunctions and their description.
1
2
3
4
5
6
7
8
9
Indoor air temp sensor open/short
Indoor coil sensor open or short
Outdoor coil sensor open/short
Freeze Guard protection
Display ‘F1’, with STATUS light flash
Display ‘F2’, with STATUS light flash
Display ‘F4’, with STATUS light flash
Display ‘FP’, with STATUS light flash
Indoor coil high temp protection
Outdoor coil high temp protection
Indoor coil freeze protection
Defrost (heat pump type)
STATUS light flash 8 times and off 3 sec, repeat
STATUS light flash 6 times and off 3 sec, repeat
STATUS light flash 5 times and off 3 sec, repeat
STATUS light flash 7 times and off 3 sec, repeat
STATUS light flash 9 times and off 3 sec, repeat
Thermostat wiring error
23
MALFUNCTION ANALYSIS
Switch is at the OFF position; or socket and plug is
loosened; or power wire has malfunction; or power failure
No power supply
Fuse is burned out
Replace the fuse
Inspect the supply voltage. If it is lower 10% of the rated
voltage, pleaselook for the reason, improve the
Supply voltage is too low
Check if optional switch (ON,OFF) is disconnected with the
wire or it’s with mechanical failure; use the universal meter to
check if contacts of the switch are conducting; if not, replace
it with a new one with the same model and specification
Switch is broken down
Failure of crystal oscillator or reset circuit
Replace those parts which have malfunction
A/C can’t run
Check the circuit and connect the wire according to the
electric diagram attached to the unit
The wire is loosened
Replace the transformer
Replace the controller
Transformer is broken
Controller is broken
Receiver head is loosened
First press the “AUTO” button of the manual switch. If the
button is normal, recheck if the installation and connection of
head and lines are correct. If correct, replace receiving head
or remote controller.
Receiver head is broken or it isn’t plugged well
Remote controller has malfunction
Lower the temperature of the thermostat
(or increase the temperature when heating)
The thermostat hasn’t been adjusted well
Too much dust accumulated on the filter
Heat exchanger is blocked
Clean the filter
Clean the dust accumulated on the surface of the heat
exchanger
Set the fan speed at high or medium fan speed
Fan speed is set too slow
A/C can run but
it can’t cooling
(or heating)
1. Wrong wire connection; 2. whether the capacitor
damaged or not; 3. the motor has malfunction; Connect the
wire correctly or replace those parts which has malfunction.
The fan can’t run or the fan speed is too slow
24
Check leakage, carry out vacuum-pumping after repairing
leakage and charge refrigerant according to requirements
Refrigerant is insufficient or leaking
Refrigeration system is blocked
Too much refrigerant
Check whether the system is blocked by observing the
condensation of the evaporator and the pressure value of
the high pressure manometer, and then take measures to
deal with the system.
Release the redundant refrigerant in system
Replace the compressor
The efficiency of the compressor is low
Condenser can’t discharge smoothly
Get rid of the obstacle
1. the wire is loosened; 2. thermal fuse is broken;
3. temperature limiter is damaged; 4. electric heater is
damaged; 5. controller is broken. correct the wore correctly
or replace those parts which has malfunction.
A/C on. No
cooling (or
heating)
At the time of heating, the electric heater
can’t run
You can install the rain-proof and sun-proof board. If the
cooling air is still insufficient, you are suggested
to replace the A/C
Outdoor temperature is too high
Whether the cooling (heating) load is suitable
Check the preset cooling (heating) load
The air tightness in room is not good. People
come in and go out frequently. There are
Keep the air tightness well. Try not to use the electic
appliances with a large quantity of heat
heating devices in the room when A/C is cooling
Check the reason and correct it.
Supply voltage is unstable
Check the circuit and connect the wire correctly
according to the electic circuit diagram
Wrong wire connection
Replace fan’s capacitor with the same
mode and specification
The fan’s capacitor is broken
Call for fan
motor but fan
motor will not
come on
The motor winding is of broken circuit or short
circuit or the built in temperature limiter device
in open circuit due to overheat.
Replace those parts which has malfunction
Replace the controller
The controller has malfunction
Replace capacitor; connect the wire correctly
according to the electric circuit diagram
The compressor capacitor is broken; wrong wire
connection
Compressor
isn’t running
(controller is
with output)
Check with a multimeter if the enclosed motor windings of
compressor is with short or broken circuit or earthing. If so, it
is needed to replace it with the same type and specifications.
The compressor’s motor is burned out
The compressor is jammed or blocked
Knock the compressor housing with a rubber bar or with
a hammer padding with a wood, the compressor might be
shocked and run. If not, change the compressor.
25
Adjust the quantity of the refrigerant
Replace capillary
Refrigerant is insufficient or super abundance
Capillary is blocked and the suction
temperature is rising
Protector is
activated due to
overheating of
the compressor
The compressor can run smoothly or is stuck.
The air discharge valve is damaged.
Replace the compressor
Use the multimeter to check whether the contact point of the
compressor is conducted at the timer of non-subheating. If it
can’t be conducted, please replace the protector.
Protector has malfunction
Check the reason, improve the power supply condition and
add the regulated power supply
Supply voltage is abnormal
The radiating for evaporator and condensor is
not good; Poor air ventilation
Get rid of the dust on the evaporator and condensor, remove
the obstacles at the air outlet
Compressor
is ON-OFF
frequently
The air conditioner capability does not match
the area of the room, i.e. so called “Big system,
small room”.
Slect the A/C which is applicable to the room areas
Replace the battery
Reveiving distance of remote control
is too short
Replace the battery
LCD display flashes or when pressing
the transmit button the entire screen
is displayed.
Battery’s capacity is insufficient
The LCD frame hasn’t fixed well
Replace the battery
LED display is found short of stroke
Fix the LCD frame properly
The compressor hasn’t installed well and the
Check whether the base is firm
base is unstable
The unit hasn’t placed flatly and stable
Adjust the unit’s position
Vibration and
noise are
abnormal
The unit’s support is unstable
Strengthen the support or refit it
There are foreign objects on the unit
Screws are loosened
Get rid of the foreign objects
Tighten the screws
As for the above malfunction analysis, there aren’t malfunction related to heating for the cooling only unit.
26
COMPONENTS TESTING
BLOWER / FAN MOTOR
Capacitor Check with Capacitor Analyzer
Asinglephasepermanentsplitcapacitormotorisusedtodrive
the evaporator blower and condenser fan. A self-resetting
overload is located inside the motor to protect against high
temperature and high amperage conditions.
The capacitor analyzer will show whether the capacitor
is “open” or “shorted.” It will tell whether the capacitor
is within its micro farads rating and it will show whether
the capacitor is operating at the proper power-factor
percentage. The instrument will automatically discharge
the capacitor when the test switch is released.
WARNING
Capacitor Connections
ELECTRIC SHOCK HAZARD
Disconnect power to the unit before
servicing. Failure to follow this warning
could result in serious injury or death.
The starting winding of a motor can be damaged by a
shorted and grounded running capacitor. This damage
usually can be avoided by proper connection of the running
capacitor terminals.
BLOWER / FAN MOTOR TEST
From the supply line on a typical 230 volt circuit, a 115 volt
potential exists from the “R” terminal to ground through a
possibleshortinthecapacitor. However, fromthe“S”orstart
terminal, a much higher potential, possibly as high as 400
volts, exists because of the counter EMF generated in the
start winding. Therefore, the possibility of capacitor failure
is much greater when the identified terminal is connected
to the “S” or start terminal. The identified terminal should
always be connected to the supply line, or “R” terminal,
never to the “S” terminal.
1. Make sure the motor has cooled down.
2. Disconnect the fan motor wires from the control board.
3. Test for continuity between the windings also, test to
ground.
4. If any winding is open or grounded replace the motor.
When connected properly, a shorted or grounded running
capacitor will result in a direct short to ground from the “R”
terminal and will blow the line fuse. The motor protector
will protect the main winding from excessive temperature.
CAPACITORS
WARNING
ELECTRIC SHOCK HAZARD
Turn off electric power before servicing.
Discharge capacitor with a 20,000 Ohm 2 Watt
resistor before handling.
Failure to do so may result in personal injury,
or death.
Many motor capacitors are internally fused. Shorting the
terminals will blow the fuse, ruining the capacitor. A 20,000
ohm 2 watt resistor can be used to discharge capacitors
safely. Remove wires from capacitor and place resistor
across terminals. When checking a dual capacitor with
a capacitor analyzer or ohmmeter, both sides must be
tested.
27
COMPONENTS TESTING (Continued)
HEATER ELEMENTS AND LIMIT SWITCHES’
SPECIFICATIONS
All heat pumps and electric heat models are equipped
with a heating element and a limit switch (bimetal ther-
mostat). The limit is in series with the element and will
interrupt the power at a designed temperature.
DRAIN PAN VALVE
During the cooling mode of operation, condensate which
collects in the drain pan is picked up by the condenser fan
blade and sprayed onto the condenser coil. This assists
in cooling the refrigerant plus evaporating the water.
During the heating mode of operation, it is necessary that
water be removed to prevent it from freezing during cold
outside temperatures. This could cause the condenser
fan blade to freeze in the accumulated water and prevent
it from turning.
Should the blower motor fail, filter become clogged or air-
flow be restricted etc., the high limit switch will open and
interrupt the power to the heater before reaching an un-
safe temperature condition.
To provide a means of draining this water, a bellows type
drain valve is installed over a drain opening in the base
pan.
TESTING THE HEATING ELEMENTS AND
LIMIT SWITCHES
WARNING
This valve is temperature sensitive and will open when
the outside temperature reaches 40°F. The valve will
close gradually as the temperature rises above 40°F to
fully close at 60°F.
ELECTRIC SHOCK HAZARD
Disconnect power to the unit before
servicing. Failure to follow this warning
could result in serious injury or death.
Testing of the heating elements can be made with an
ohmmeter or continuity tester across the terminals after
the power wires have been removed. Test the limit switch
for continuity across its input and output terminals.Test
below the limit switch’s reset temperature.
Bellows Assembly
Drain Pan Valve
28
REFRIGERATION SEQUENCE OF OPERATION
A good understanding of the basic operation of the
refrigeration system is essential for the service technician.
Without this understanding, accurate troubleshooting of
refrigeration system problems will be more difficult and time
consuming, if not (in some cases) entirely impossible. The
refrigeration system uses four basic principles (laws) in its
operation they are as follows:
The refrigerant leaves the condenser Coil through the liquid
line as a warm high pressure liquid. It next will pass through
the refrigerant drier (if so equipped). It is the function of the
driertotrapanymoisturepresentinthesystem,contaminants,
and large particulate matter.
The liquid refrigerant next enters the metering device. The
metering device is a capillary tube. The purpose of the
metering device is to “meter” (i.e. control or measure) the
quantity of refrigerant entering the evaporator coil.
1. “Heat always flows from a warmer body to a cooler
body.”
2. “Heat must be added to or removed from a substance
before a change in state can occur”
In the case of the capillary tube this is accomplished (by
design) through size (and length) of device, and the pressure
difference present across the device.
3. “Flow is always from a higher pressure area to a lower
pressure area.”
Since the evaporator coil is under a lower pressure (due to
the suction created by the compressor) than the liquid line,
the liquid refrigerant leaves the metering device entering the
evaporator coil. As it enters the evaporator coil, the larger
area and lower pressure allows the refrigerant to expand
and lower its temperature (heat intensity). This expansion is
often referred to as “boiling”. Since the unit’s blower is moving
indoor air across the finned surface of the evaporator coil,
the expanding refrigerant absorbs some of that heat. This
results in a lowering of the indoor air temperature, hence the
“cooling” effect.
4. “The temperature at which a liquid or gas changes state
is dependent upon the pressure.”
The refrigeration cycle begins at the compressor. Starting
the compressor creates a low pressure in the suction line
which draws refrigerant gas (vapor) into the compressor.
The compressor then “compresses” this refrigerant, raising
its pressure and its (heat intensity) temperature.
The refrigerant leaves the compressor through the discharge
Line as a hot High pressure gas (vapor). The refrigerant
enters the condenser coil where it gives up some of its
heat. The condenser fan moving air across the coil’s finned
surface facilitates the transfer of heat from the refrigerant to
the relatively cooler outdoor air.
The expansion and absorbing of heat cause the liquid
refrigerant to evaporate (i.e. change to a gas). Once the
refrigerant has been evaporated (changed to a gas), it is
heated even further by the air that continues to flow across
the evaporator coil.
When a sufficient quantity of heat has been removed from
the refrigerant gas (vapor), the refrigerant will “condense”
(i.e. change to a liquid). Once the refrigerant has been
condensed (changed) to a liquid it is cooled even further by
the air that continues to flow across the condenser coil.
The particular system design determines at exactly what
point (in the evaporator) the change of state (i.e. liquid to a
gas) takes place. In all cases, however, the refrigerant must
be totally evaporated (changed) to a gas before leaving the
evaporator coil.
The PTAC design determines at exactly what point (in
the condenser) the change of state (i.e. gas to a liquid)
takes place. In all cases, however, the refrigerant must be
totally condensed (changed) to a Liquid before leaving the
condenser coil.
The low pressure (suction) created by the compressor
causes the refrigerant to leave the evaporator through the
suction line as a cool low pressure vapor. The refrigerant then
returns to the compressor, where the cycle is repeated.
Suction
Line
Discharge
Line
Condenser
Coil
Evaporator
Coil
Compressor
Metering
Device
Refrigerant Drier
Liquid
Line
Refrigerant
Strainer
29
R-410A SEALED REFRIGERATION SYSTEM REPAIRS
IMPORTANT
SEALED SYSTEM REPAIRS TO COOL-ONLY MODELS REQUIRE THE INSTALLATION OF A LIQUID LINE DRIER.
SEALED SYSTEM REPAIRS TO HEAT PUMP MODELS REQUIRE THE INSTALLATION OF A SUCTION LINE DRIER.
EQUIPMENT REQUIRED:
9. High Pressure Gauge - (0 - 750 lbs.)
1. Voltmeter
10. Low Pressure Gauge - (30 - 200 lbs.)
2. Ammeter
11. Vacuum Gauge - (0 - 1000 microns)
3. Ohmmeter
12. Facilities for flowing nitrogen through refrigeration tubing
during all brazing processes.
4. E.P.A. Approved Refrigerant Recovery System
5. Vacuum Pump (capable of 200 microns or less
vacuum.)
EQUIPMENT MUST BE CAPABLE OF:
6. Acetylene Welder
1. Recovering refrigerant to EPA required levels.
7. Electronic Halogen Leak Detector capable of detect-
ing HFC (Hydrofluorocarbon) refrigerants.
2. Evacuation from both the high side and low side of the
system simultaneously.
8. Accurate refrigerant charge measuring device such
as:
3. Introducing refrigerant charge into high side of the
system.
a. Balance Scales - 1/2 oz. accuracy
b. Charging Board - 1/2 oz. accuracy
4. Accurately weighing the refrigerant charge introduced
into the system.
Too much refrigerant (overcharge) in the system is just as bad
(if not worse) than not enough refrigerant (undercharge). They
both can be the source of certain compressor failures if they
remain uncorrected for any period of time. Quite often, other
problems (such as low air flow across evaporator, etc.) are
misdiagnosed as refrigerant charge problems. The refrigerant
circuit diagnosis chart will assist you in properly diagnosing
these systems.
WARNING
RISK OF ELECTRIC SHOCK
Unplug and/or disconnect all electrical power
to the unit before performing inspections,
maintenances or service.
Failure to do so could result in electric shock,
serious injury or death.
An overcharged unit will at times return liquid refrigerant
(slugging) back to the suction side of the compressor eventually
causing a mechanical failure within the compressor. This
mechanical failure can manifest itself as valve failure, bearing
failure, and/or other mechanical failure. The specific type of
failure will be influenced by the amount of liquid being returned,
and the length of time the slugging continues.
WARNING
HIGH PRESSURE HAZARD
SealedRefrigerationSystemcontainsrefrigerant
and oil under high pressure.
Proper safety procedures must be followed,
and proper protective clothing must be worn
when working with refrigerants.
Not enough refrigerant (undercharge) on the other hand, will
cause the temperature of the suction gas to increase to the point
where it does not provide sufficient cooling for the compressor
motor. When this occurs, the motor winding temperature will
increase causing the motor to overheat and possibly cycle open
the compressor overload protector. Continued overheating of
the motor windings and/or cycling of the overload will eventually
lead to compressor motor or overload failure.
Failure to follow these procedures could
result in serious injury or death.
Refrigerant Charging
Proper refrigerant charge is essential to proper unit opera-
tion. Operating a unit with an improper refrigerant charge will
result in reduced performance (capacity) and/or efficiency.
Accordingly, the use of proper charging methods during ser-
vicing will insure that the unit is functioning as designed and
that its compressor will not be damaged.
30
Method Of Charging / Repairs
CAUTION
The acceptable method for charging the RAC system is the
Weighed in Charge Method. The weighed in charge method is
applicable to all units. It is the preferred method to use, as it is
the most accurate.
FREEZE HAZARD
Proper safety procedures must be followed,
and proper protective clothing must be worn
when working with liquid refrigerant.
The weighed in method should always be used whenever
a charge is removed from a unit such as for a leak repair,
compressor replacement, or when there is no refrigerant
charge left in the unit. To charge by this method, requires the
following steps:
Failure to follow these procedures could
result in minor to moderate injury.
4. Make necessary repairs to system.
1. Install a piercing valve to remove refrigerant from the
sealedsystem. (Piercing valve must be removed from the
system before recharging.)
5. Evacuate system to 200 microns or less.
6. Weigh in refrigerant with the property quantity of R-410A
refrigerant.
2. Recover Refrigerant in accordance with EPA regulations.
7. Start unit, and verify performance.
WARNING
BURN HAZARD
WARNING
Proper safety procedures must be followed,
and proper protective clothing must be worn
when working with a torch.
BURN HAZARD
Proper safety procedures must be followed,
and proper protective clothing must be worn
when working with a torch.
Failure to follow these procedures could
result in moderate or serious injury.
Failure to follow these procedures could
result in moderate or serious injury.
3. Install a process tube to sealed system.
8. Crimp the process tube and solder the end shut.
Undercharged Refrigerant Systems
An undercharged system will result in poor performance
(low pressures, etc.) in both the heating and cooling
cycle.
WARNING
ELECTRIC SHOCK HAZARD
Turn off electric power before service or
installation.
Whenever you service a unit with an undercharge of
refrigerant, always suspect a leak. The leak must be
repaired before charging the unit.
Extreme care must be used, if it becomes
necessary to work on equipment with power
applied.
To check for an undercharged system, turn the unit on,
allow the compressor to run long enough to establish
working pressures in the system (15 to 20 minutes).
Failure to do so could result in serious injury or
death.
During the cooling cycle you can listen carefully at the exit
of the metering device into the evaporator; an intermittent
hissing and gurgling sound indicates a low refrigerant
charge. Intermittent frosting and thawing of the evaporator
is another indication of a low charge, however, frosting
and thawing can also be caused by insufficient air over
the evaporator.
WARNING
HIGH PRESSURE HAZARD
SealedRefrigerationSystemcontainsrefrigerant
and oil under high pressure.
Proper safety procedures must be followed,
and proper protective clothing must be worn
when working with refrigerants.
Checks for an undercharged system can be made at
the compressor. If the compressor seems quieter than
normal, it is an indication of a low refrigerant charge.
Failure to follow these procedures could
result in serious injury or death.
A check of the amperage drawn by the compressor
motor should show a lower reading. (Check the Unit
Specification.)
31
After the unit has run 10 to 15 minutes, check the gauge Improper air flow over the evaporator coil may indicate
pressures.Gaugesconnectedtosystemwithanundercharge some of the same symptoms as an over charged system.
will have low head pressures and substantially low suction An overcharge can cause the compressor to fail, since it
pressures.
would be “slugged” with liquid refrigerant.
The charge for any system is critical. When the compressor
is noisy, suspect an overcharge, when you are sure that the
air quantity over the evaporator coil is correct. Icing of the
evaporator will not be encountered because the refrigerant
will boil later if at all. Gauges connected to system will usually
have higher head pressure (depending upon amount of over
charge). Suction pressure should be slightly higher.
Overcharged Refrigerant Systems
Compressor amps will be near normal or higher.
Noncondensables can also cause these symptoms. To
confirm, remove some of the charge, if conditions improve,
system may be overcharged. If conditions don’t improve,
Noncondensables are indicated.
Wheneveranoverchargedsystemisindicated,alwaysmake
sure that the problem is not caused by air flow problems.
Restricted Refrigerant System
Troubleshooting a restricted refrigerant system can be
difficult. The following procedures are the more common
problems and solutions to these problems. There are two
types of refrigerant restrictions: Partial restrictions and
complete restrictions.
With a complete restriction the current drawn may be
considerably less than normal, as the compressor is
running in a deep vacuum (no load.) Much of the area of
the condenser will be relatively cool since most or all of the
liquid refrigerant will be stored there.
A partial restriction allows some of the refrigerant to
circulate through the system.
The following conditions are based primarily on a system
in the cooling mode.
With a complete restriction there is no circulation of
refrigerant in the system.
Restricted refrigerant systems display the same symptoms
as a “low-charge condition.”
When the unit is shut off, the gauges may equalize very
slowly.
Gauges connected to a completely restricted system will
run in a deep vacuum. When the unit is shut off, the gauges
will not equalize at all.
A quick check for either condition begins at the evaporator.
With a partial restriction, there may be gurgling sounds
at the metering device entrance to the evaporator. The
evaporator in a partial restriction could be partially frosted
or have an ice ball close to the entrance of the metering
device. Frost may continue on the suction line back to the
compressor.
Often a partial restriction of any type can be found by feel,
as there is a temperature difference from one side of the
restriction to the other.
With a complete restriction, there will be no sound at the
metering device entrance. An amperage check of the
compressor with a partial restriction may show normal
current when compared to the unit specification.
32
HERMETIC COMPONENTS CHECK
WARNING
BURN HAZARD
WARNING
Proper safety procedures must be followed,
and proper protective clothing must be worn
when working with a torch.
CUT/SEVER HAZARD
Be careful with the sharp edges and corners.
Wear protective clothing and gloves, etc.
Failure to follow these procedures could
result in moderate or serious injury.
Failure to do so could result in serious injury.
METERING DEVICE
Capillary Tube Systems
All units are equipped with capillary tube metering
devices.
3. Switch the unit to the heating mode and observe the
gauge readings after a few minutes running time. If
the system pressure is lower than normal, the heating
capillary is restricted.
Checking for restricted capillary tubes.
1. Connect pressure gauges to unit.
4. If the operating pressures are lower than normal in both
the heating and cooling mode, the cooling capillary is
restricted.
2. Start the unit in the cooling mode. If after a few minutes
of operation the pressures are normal, the check valve
and the cooling capillary are not restricted.
CHECK VALVE
the port (liquid line) to the outdoor coil. The flow path of
the refrigerant is then through the filter drier and heating
capillary to the outdoor coil.
A unique two-way check valve is used on the reverse cycle
heat pumps. It is pressure operated and used to direct the
flow of refrigerant through a single filter drier and to the
proper capillary tube during either the heating or cooling
cycle.
Failure of the slide in the check valve to seat properly in
either mode of operation will cause flooding of the cooling
coil. This is due to the refrigerant bypassing the heating or
cooling capillary tube and entering the liquid line.
One-way Check Valve
(Heat Pump Models)
COOLING MODE
In the cooling mode of operation, liquid refrigerant from
condenser (liquid line) enters the cooling check valve
forcing the heating check valve shut. The liquid refrigerant
is directed into the liquid dryer after which the refrigerant
is metered through cooling capillary tubes to evaporator.
(Note: liquid refrigerant will also be directed through the
heating capillary tubes in a continuous loop during the
cooling mode).
NOTE: The slide (check) inside the valve is made of teflon.
Should it become necessary to replace the check valve,
place a wet cloth around the valve to prevent overheating
during the brazing operation.
HEATING MODE
In the heating mode of operation, liquid refrigerant from
the indoor coil enters the heating check valve forcing the
cooling check valve shut. The liquid refrigerant is directed
into the liquid dryer after which the refrigerant is metered
through the heating capillary tubes to outdoor coils. (Note:
liquid refrigerant will also be directed through the cooling
capillary tubes in a continuous loop during the heating
mode).
CHECK VALVE OPERATION
In the cooling mode of operation, high pressure liquid enters
the check valve forcing the slide to close the opposite port
(liquid line) to the indoor coil. Refer to refrigerant flow chart.
This directs the refrigerant through the filter drier and cooling
capillary tube to the indoor coil.
In the heating mode of operation, high pressure refrigerant
enters the check valve from the opposite direction, closing
33
REVERSING VALVE DESCRIPTION/OPERATION
of the system. The pilot section of the valve opens and
WARNING
ELECTRIC SHOCK HAZARD
closes ports for the small capillary tubes to the main valve
to cause it to shift.
Disconnect power to the unit before servicing.
Failure to follow this warning could result in
serious injury or death.
NOTE: System operating pressures must be near
normal before valve can shift.
The Reversing Valve controls the direction of refrigerant flow
to the indoor and outdoor coils. It consists of a pressure-
operated, main valve and a pilot valve actuated by a solenoid
plunger. The solenoid is energized during the heating cycle
only. The reversing valves used in the PTAC system is a
2-position, 4-way valve.
The single tube on one side of the main valve body is the
high-pressure inlet to the valve from the compressor. The
center tube on the opposite side is connected to the low
pressure (suction) side of the system. The other two are
connected to the indoor and outdoor coils. Small capillary
tubes connect each end of the main valve cylinder to the “A”
and “B” ports of the pilot valve. A third capillary is a common
return line from these ports to the suction tube on the main
valve body. Four-way reversing valves also have a capillary
tube from the compressor discharge tube to the pilot valve.
The piston assembly in the main valve can only be shifted
by the pressure differential between the high and low sides
TESTING THE COIL
NOTE: Do not start unit with solenoid coil removed from
valve, or do not remove coil after unit is in operation. This
will cause the coil to burn out.
WARNING
ELECTRIC SHOCK HAZARD
Unplug and/or disconnect all electrical power
to the unit before performing inspections,
maintenances or service.
CHECKING THE REVERSING VALVE
NOTE: You must have normal operating pressures before
Failure to do so could result in electric shock,
serious injury or death.
the reversing valve can shift.
WARNING
The solenoid coil is an electromagnetic type coil mounted
on the reversing valve and is energized during the
operation of the compressor in the heating cycle.
HIGH PRESSURE HAZARD
SealedRefrigerationSystemcontainsrefrigerant
and oil under high pressure.
1. Turn off high voltage electrical power to unit.
Proper safety procedures must be followed,
and proper protective clothing must be worn
when working with refrigerants.
2. Unplug line voltage lead from reversing valve coil.
3. Check for electrical continuity through the coil. If you
do not have continuity replace the coil.
Failure to follow these procedures could
result in serious injury or death.
4. Check from each lead of coil to the copper liquid line
as it leaves the unit or the ground lug. There should
be no continuity between either of the coil leads
and ground; if there is, coil is grounded and must be
replaced.
Check the operation of the valve by starting the system
and switching the operation from “Cooling” to “Heating”
and then back to “Cooling”. Do not hammer on valve.
Occasionally, the reversing valve may stick in the heating
or cooling position or in the mid-position.
5. If coil tests okay, reconnect the electrical leads.
6. Make sure coil has been assembled correctly.
34
When sluggish or stuck in the mid-position, part of the
discharge gas from the compressor is directed back to the
suction side, resulting in excessively high suction pressure.
Touch Test in Heating/Cooling Cycle
WARNING
BURN HAZARD
Certain unit components operate at
temperatures hot enough to cause burns.
Should the valve fail to shift from coooling to heating,
block the air flow through the outdoor coil and allow the
discharge pressure to build in the system. Then switch the
system from heating to cooling.
Proper safety procedures must be followed,
and proper protective clothing must be
worn.
If the valve is stuck in the heating position, block the air
flow through the indoor coil and allow discharge pressure
to build in the system. Then switch the system from heating
to cooling.
Failure to follow these procedures could
result in minor to moderate injury.
Shouldthevalvefailtoshiftineitherpositionafterincreasing
the discharge pressure, replace the valve.
The only definite indications that the slide is in the mid-
position is if all three tubes on the suction side of the valve
are hot after a few minutes of running time.
Dented or damaged valve body or capillary tubes can
prevent the main slide in the valve body from shifting.
NOTE: A condition other than those illustrated above, and
on Page 31, indicate that the reversing valve is not shifting
properly. Both tubes shown as hot or cool must be the same
corresponding temperature.
If you determing this is the problem, replace the reversing
valve.
Procedure For Changing Reversing Valve
After all of the previous inspections and checks have been
made and determined correct, then perform the “Touch
Test” on the reversing valve.
WARNING
HIGH PRESSURE HAZARD
SealedRefrigerationSystemcontainsrefrigerant
and oil under high pressure.
Proper safety procedures must be followed,
and proper protective clothing must be worn
when working with refrigerants.
Failure to follow these procedures could
result in serious injury or death.
NOTICE
FIRE HAZARD
The use of a torch requires extreme care and proper
judgment. Follow all safety recommended precautions
and protect surrounding areas with fire proof materials.
Have a fire extinguisher readily available. Failure to follow
this notice could result in moderate to serious property
damage.
Reversing Valve in Heating Mode
1. Install Process Tubes. Recover refrigerant from sealed
system. PROPER HANDLING OF RECOVERED
REFRIGERANT ACCORDING TO EPA REGULATIONS
IS REQUIRED.
2. Remove solenoid coil from reversing valve. If coil is to
be reused, protect from heat while changing valve.
3. Unbraze all lines from reversing valve.
4. Clean all excess braze from all tubing so that they will
slip into fittings on new valve.
5. Remove solenoid coil from new valve.
Reversing Valve in Cooling Mode
35
6. Protectnewvalvebodyfromheatwhilebrazingwith plastic
heat sink (Thermo Trap) or wrap valve body with wet
rag.
Determine L.R.V.
Start the compressor with the volt meter attached; then stop
the unit. Attempt to restart the compressor within a couple
of seconds and immediately read the voltage on the meter.
The compressor under these conditions will not start and will
usually kick out on overload within a few seconds since the
pressures in the system will not have had time to equalize.
Voltage should be at or above minimum voltage of 197 VAC,
as specified on the rating plate. If less than minimum, check
for cause of inadequate power supply; i.e., incorrect wire
size, loose electrical connections, etc.
7. Fit all lines into new valve and braze lines into new
valve.
WARNING
EXPLOSION HAZARD
The use of nitrogen requires a pressure
regulator. Follow all safety procedures and
wear protective safety clothing etc.
Amperage (L.R.A.) Test
Failure to follow proper safety procedures
could result in serious injury or death.
The running amperage of the compressor is the most impor-
tant of these readings. A running amperage higher than that
indicated in the performance data indicates that a problem
exists mechanically or electrically.
8. Pressurize sealed system with a combination of R-22
and nitrogen and check for leaks, using a suitable leak
detector. Recover refrigerant per EPA guidelines.
Single Phase Running and L.R.A. Test
NOTE: Consult the specification and performance section
for running amperage. The L.R.A. can also be found on the
rating plate.
9. Once the sealed system is leak free, install solenoid coil
on new valve and charge the sealed system by weighing
in the proper amount and type of refrigerant as shown
on rating plate. Crimp the process tubes and solder the
ends shut. Do not leave Schrader or piercing valves in
the sealed system.
Select the proper amperage scale and clamp the meter
probe around the wire to the “C” terminal of the compressor.
Turn on the unit and read the running amperage on the me-
ter. If the compressor does not start, the reading will indicate
the locked rotor amperage (L.R.A.).
NOTE: When brazing a reversing valve into the system, it is
of extreme importance that the temperature of the valve does
not exceed 250°F at any time.
Overloads
The compressor is equipped with an external overload which
senses both motor amperage and winding temperature. High
motor temperature or amperage heats the overload causing it
to open, breaking the common circuit within the compressor.
Wrap the reversing valve with a large rag saturated with
water. “Re-wet” the rag and thoroughly cool the valve after
each brazing operation of the four joints involved.
The wet rag around the reversing valve will eliminate
conduction of heat to the valve body when brazing the line
connection.
Heat generated within the compressor shell, usually due to
recycling of the motor, is slow to dissipate. It may take any-
where from a few minutes to several hours for the overload
to reset.
COMPRESSOR CHECKS
Checking the Overload
WARNING
ELECTRIC SHOCK HAZARD
WARNING
Turn off electric power before service or
installation. Extreme care must be used, if it
becomes necessary to work on equipment with
power applied.
ELECTRIC SHOCK HAZARD
Turn off electric power before service or
installation. Extreme care must be used, if it
becomes necessary to work on equipment
with power applied.
Failure to do so could result in serious injury or
death.
Failure to do so could result in serious injury or
death.
Locked Rotor Voltage (L.R.V.) Test
Locked rotor voltage (L.R.V.) is the actual voltage available
at the compressor under a stalled condition.
Single Phase Connections
Disconnect power from unit. Using a voltmeter, attach one
lead of the meter to the run “R” terminal on the compressor
and the other lead to the common “C” terminal of the com-
pressor. Restore power to unit.
36
In a single phase PSC compressor motor, the highest
value will be from the start to the run connections (“S” to
“R”). The next highest resistance is from the start to the
common connections (“S” to “C”). The lowest resistance
is from the run to common. (“C” to “R”) Before replacing a
compressor, check to be sure it is defective.
WARNING
BURN HAZARD
Certain unit components operate at
temperatures hot enough to cause burns.
Proper safety procedures must be followed,
and proper protective clothing must be
worn.
Failure to follow this warning could result
in moderate to serious injury.
External Overload
With power off, remove the leads from compressor termi-
nals. If the compressor is hot, allow the overload to cool
before starting check. Using an ohmmeter, test continu-
ity across the terminals of the external overload. If you
do not have continuity; this indicates that the overload is
open and must be replaced.
GROUND TEST
Use an ohmmeter set on its highest scale. Touch one
lead to the compressor body (clean point of contact as a
good connection is a must) and the other probe in turn
to each compressor terminal. If a reading is obtained the
compressor is grounded and must be replaced.
Check the complete electrical system to the compressor
and compressor internal electrical system, check to be
certain that compressor is not out on internal overload.
Completeevaluationofthesystemmustbemadewhenever
you suspect the compressor is defective. If the compressor
has been operating for sometime, a careful examination
must be made to determine why the compressor failed.
Single Phase Resistance Test
Many compressor failures are caused by the following
conditions:
WARNING
ELECTRIC SHOCK HAZARD
1. Improper air flow over the evaporator.
Turn off electric power before service or
installation. Extreme care must be used, if it
becomes necessary to work on equipment
with power applied.
2. Overcharged refrigerant system causing liquid to be
returned to the compressor.
3. Restricted refrigerant system.
4. Lack of lubrication.
Failure to do so could result in serious injury or
death.
Remove the leads from the compressor terminals and set
the ohmmeter on the lowest scale (R x 1).
5. Liquid refrigerant returning to compressor causing oil
to be washed out of bearings.
Touch the leads of the ohmmeter from terminals common
to start (“C” to “S”). Next, touch the leads of the ohmmeter
from terminals common to run (“C” to “R”).
6.
Noncondensables such as air and moisture in
the system. Moisture is extremely destructive to a
refrigerant system.
Add values “C” to “S” and “C” to “R” together and
check resistance from start to run terminals (“S” to “R”).
Resistance “S” to “R” should equal the total of “C” to “S”
and “C” to “R.”
37
COMPRESSOR REPLACEMENT
Recommendedprocedureforcompressor
replacement
3. After all refrigerant has been recovered, disconnect
suction and discharge lines from the compressor and
remove compressor. Be certain to have both suction
and discharge process tubes open to atmosphere.
WARNING
4. Carefully pour a small amount of oil from the suction
RISK OF ELECTRIC SHOCK
Unplug and/or disconnect all electrical power
to the unit before performing inspections,
maintenances or service.
stub of the defective compressor into a clean
container.
5. Using an acid test kit (one shot or conventional kit), test
the oil for acid content according to the instructions
with the kit.
Failure to do so could result in electric shock,
serious injury or death.
6. If any evidence of a burnout is found, no matter how
slight, the system will need to be cleaned up following
proper procedures.
1. Be certain to perform all necessary electrical and
refrigeration tests to be sure the compressor is
actually defective before replacing.
7. Install the replacement compressor.
WARNING
WARNING
HIGH PRESSURE HAZARD
SealedRefrigerationSystemcontainsrefrigerant
and oil under high pressure.
EXPLOSION HAZARD
The use of nitrogen requires a pressure
regulator. Follow all safety procedures and
wear protective safety clothing etc.
Proper safety procedures must be followed,
and proper protective clothing must be worn
when working with refrigerants.
Failure to follow proper safety procedures
result in serious injury or death.
Failure to follow these procedures could
result in serious injury or death.
8. Pressurize with a combination of R-410A and nitrogen
and leak test all connections with leak detector capable of
detecting HFC (Hydrofluorocarbon) refrigerant. Recover
refrigerant/nitrogen mixture and repair any leaks found.
2. Recover all refrigerant from the system though
the process tubes. PROPER HANDLING OF
RECOVERED REFRIGERANT ACCORDING TO
EPA REGULATIONS IS REQUIRED. Do not use
gauge manifold for this purpose if there has been
a burnout. You will contaminate your manifold and
hoses. Use a Schrader valve adapter and copper
tubing for burnout failures.
Repeat Step 8 to insure no more leaks are present.
9. Evacuate the system with a good vacuum pump capable
of a final vacuum of 200 microns or less. The system
should be evacuated through both liquid line and suction
line gauge ports. While the unit is being evacuated, seal
all openings on the defective compressor.
WARNING
HIGH TEMPERATURES
CAUTION
FREEZE HAZARD
Extreme care, proper judgment and all safety
procedures must be followed when testing,
troubleshooting, handling or working around
unit while in operation with high temperature
components. Wear protective safety aids
such as: gloves, clothing etc.
Proper safety procedures must be followed,
and proper protective clothing must be worn
when working with liquid refrigerant.
Failure to follow these procedures could
result in minor to moderate injury.
Failure to do so could result in serious burn
injury.
10. Recharge the system with the correct amount of
refrigerant. The proper refrigerant charge will be
found on the unit rating plate. The use of an accurate
measuring device, such as a charging cylinder,
NOTICE
FIRE HAZARD
electronic scales or similar device is necessary.
The use of a torch requires extreme care and proper
judgment. Follow all safety recommended precautions
and protect surrounding areas with fire proof materials.
Have a fire extinguisher readily available. Failure to follow
this notice could result in moderate to serious property
damage.
NOTICE
NEVER, under any circumstances, charge a rotary
compressor through the LOW side. Doing so would
cause permanent damage to the new compressor.
38
SPECIAL PROCEDURE IN THE CASE OF MOTOR
COMPRESSOR BURNOUT
To ensure proper unit operation and life expectancy, the
following maintenance procedures should be performed
on a regular basis
WARNING
ELECTRIC SHOCK HAZARD
Turn off electric power before service or
installation.
1. Air Filter
To ensure proper unit operation, the air filters should
be cleaned at least monthly, and more frequently if
conditions warrant. The unit must be turned off before
the filters are cleaned.
Failure to do so may result in personal injury,
or death.
To remove the air filters, grasp the top of the filter and lift
out of the front cabinet. Reverse the procedure to reinstall
the filters.
WARNING
HIGH PRESSURE HAZARD
SealedRefrigerationSystemcontainsrefrigerant
and oil under high pressure.
Clean the filters with a mild detergent in warm water, and
allow them to dry thoroughly before reinstalling.
2. Coils & Chassis
Proper safety procedures must be followed,
and proper protective clothing must be worn
when working with refrigerants.
NOTE: Do not use a caustic coil cleaning agent on coils
or base pan. Use a biodegradable cleaning agent and
degreaser. The use of harsh cleaning materials may
lead to deterioration of the aluminum fins or the coil end
plates.
Failure to follow these procedures could
result in serious injury or death.
The indoor coil and outdoor coils and base pan should
be inspected periodically (annually or semi-annually)
and cleaned of all debris (lint, dirt, leaves, paper, etc.)
as necessary. Under extreme conditions, more frequent
cleaning may be required. Clean the coils and base
pan with a soft brush and compressed air or vacuum.
A pressure washer may also be used, however, you
must be careful not to bend the aluminum fin pack. Use
a sweeping up and down motion in the direction of the
vertical aluminum fin pack when pressure cleaning coils.
WARNING
EXPLOSION HAZARD
The use of nitrogen requires a pressure
regulator. Follow all safety procedures and
wear protective safety clothing etc.
Failure to follow proper safety procedures
result in serious injury or death.
1.
2.
Recover all refrigerant and oil from the system.
Note: It is extremely important to insure that none of the
electrical and/or electronic parts of the unit get wet. Be
sure to cover all electrical components to protect them
from water or spray.
Remove compressor, capillary tube and filter drier
from the system.
3.
Flush evaporator condenser and all connecting
tubing with dry nitrogen or equivalent. Use approved
flushing agent to remove all contamination from
system. Inspect suction and discharge line for
carbon deposits. Remove and clean if necessary.
Ensure all acid is neutralized.
3. Decorative Front
The decorative front and discharge air grille may be
cleaned with a mild soap or detergent. Do NOT use
solvents or hydrocarbon based cleaners such as
acetone, naphtha, gasoline, benzene, etc., to clean the
decorative front or air discharge grilles.
4. Reassemble the system, including new drier strainer
and capillary tube.
Use a damp (not wet) cloth when cleaning the control
area to prevent water from entering the unit, and possibly
damaging the electronic control
5. Proceed with step 8-10 on previous page.
4. Fan Motor & Compressor
The fan motor & compressor and are permanently
lubricated, and require no additional lubrication.
ROUTINE MAINTENANCE
WARNING
5. Wall Sleeve
Inspect the inside of the wall sleeve and drain system
periodically (annually or semi-annually) and clean as
required. Under extreme conditions, more frequent
cleaning may be necessary. Clean both of these areas
with an antibacterial and antifungal cleaner. Rinse both
items thoroughly with water and ensure that the drain
outlets are operating properly.
ELECTRICAL SHOCK HAZARD!
Turn off electrical power before service or
installation. All eletrical connections and wiring
MUST be installed by a qualified electrician
and conform to the National Code and all local
codes which have jurisdiction. Failure to do so
can result in property damage, personal injury
and/or death.
39
TROUBLESHOOTING CHART - COOLING
REFRIGERANT SYSTEM DIAGNOSIS COOLING
PROBLEM
PROBLEM
PROBLEM
PROBLEM
LOW SUCTION PRESSURE
HIGH SUCTION PRESSURE
LOW HEAD PRESSURE
HIGH HEAD PRESSURE
Low Load Conditions
High Load Conditions
Low Load Conditions
High Load Conditions
Low Air Flow Across
Indoor Coil
High Air Flow Across
Indoor Coil
Refrigerant System
Restriction
Low Air Flow Across
Outdoor Coil
Refrigerant System
Restriction
Reversing Valve not
Fully Seated
Reversing Valve not
Fully Seated
Overcharged
Undercharged
Overcharged
Non-Condensables (air)
Undercharged System
Defective Compressor
Moisture in System
Defective Compressor
TROUBLESHOOTING CHART - HEATING
REFRIGERANT SYSTEM DIAGNOSIS HEATING
PROBLEM
PROBLEM
PROBLEM
PROBLEM
LOW SUCTION PRESSURE
HIGH SUCTION PRESSURE
LOW HEAD PRESSURE
HIGH HEAD PRESSURE
Low Air Flow Across
Outdoor Coil
Outdoor Ambient Too High
for Operation in Heating
Refrigerant System
Restriction
Outdoor Ambient Too High
For Operation In Heating
Refrigerant System
Restriction
Reversing Valve not
Fully Seated
Reversing Valve not
Fully Seated
Low Air Flow Across
Indoor Coil
Undercharged
Overcharged
Undercharged
Overcharged
Non-Condensables (air)
in System
Moisture in System
Defective Compressor
Defective Compressor
40
ELECTRICAL TROUBLESHOOTING CHART - HEAT PUMP
CAUTION
WARNING
ELECTRIC SHOCK HAZARD
Turn off electric power before service or
installation.
BURN HAZARD
Certain unit components operate at
temperatures hot enough to cause burns.
Extreme care must be used, if it becomes
necessary to work on equipment with power
applied.
Proper safety procedures must be followed,
and proper protective clothing must be
worn.
Failure to do so could result in serious injury
or death.
Failure to do so could result in minor to
moderate injury.
HEAT PUMP
SYSTEM COOLS WHEN
HEATING IS DESIRED.
Is Line Voltage
Present at the
Solenoid Valve?
Is the Selector Switch
Set for Heat?
NO
NO
YES
Is the Solenoid Coil Good?
Replace the Solenoid Coil
YES
Reversing Valve Stuck
Replace the Reversing Valve
41
REMOTE WALL THERMOSTAT WIRING DIAGRAM
COOL WITH ELECTRIC HEAT
LEGEND FOR T-STAT WIRING HARNESS
R
24 VAC Power From Unit
Coil for Cooling
Y
W
O
Call for Heat
Reversing Valve Energized in cooling mode
Call for Low Fan
GL
GH
Call for High Fan
RT6 - Two Speeds Fan T-Stat - Field Provided
-- -- -- Field Wiring
Electronic
Control
Board
THERMOSTAT CONNECTIONS
GH
GL
R
Y
O
B
W
O
Y
GL
GH
C
W
RC
RH
C
EXT.
SW
Disk control
or
Auxillary fan
RT6
EXT.
SW
42
REMOTE WALL THERMOSTAT WIRING DIAGRAM
HEAT PUMP WITH ELECTRIC HEAT
LEGEND FOR T-STAT WIRING HARNESS
R
24 VAC Power From Unit
Coil for Cooling
Y
W
O
Call for Heat
Reversing Valve Energized in cooling mode
Call for Low Fan
GL
GH
Call for High Fan
RT6 - Two Speeds Fan T-Stat - Field Provided
-- -- -- Field Wiring
Electronic
Control
Board
THERMOSTAT CONNECTIONS
GH
GL
R
Y
O
B
W
O
Y
GL
GH
C
W
RC
RH
C
EXT.
SW
Disk control
or
Auxillary fan
RT6
EXT.
SW
43
WIRING DIAGRAM
RD
5VDC 5VDC 5VDC
Thermistors
WH
BL
WH
BL
WH
WH
HR
HR
K103
K104
Indoor Air Outdoor
Logic Board
CAP
RD
BK
24VAC
BK
BK
BN
BN
BK
BN
12VAC
12VDC
TRAN
RD
BL
RD
BL
BK
BN
Display
Control
Board
HTR
208/230
265 VAC
BK
YL
BL
HTR
OM
IM
Auto Reset
Limit
WH
BN
BN
V 4
3 N
YV
Fuse Link
CAP
CAP
Rev Solenoid
COMPONENT ID
WIRE COLOR ID
COMP = Compressor
CAP = Capacitor
BL = Blue
BN = Brown
BK = Black
RD = Red
HTR = Heater
TB = Terminal Block
OM = Outdoor Fan Motor
IM = Indoor Fan Motor
TRAN = Transformer
RELAY COMM = L.V. Relay Cable
CR = Compressor Relay
HR = Heater Relay
WH = White
PR = Purple
YL = Yellow
GR = Green
YV = Reversing Valve Solenoid
44
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46
Resistance Table for Air Indoor Temperature Sensor
Temp.
ꢀF
Resistance
ꢀkꢀ
138.100
Temp.
ꢀF
Resistance
ꢀkꢀ
18.750
Temp.
ꢀF
Resistance
ꢀkꢀ
3.848
Temp.
ꢀF
Resistance
ꢀkꢀ
1.071
"
"
"
-19
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
20
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
59
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
98
99
-18
-17
-16
-15
-14
-13
-12
-11
-10
-9
128.600
121.600
115.000
108.700
102.900
97.400
92.220
87.350
82.750
78.430
74.350
70.500
66.880
63.460
60.230
57.180
54.310
51.590
49.020
46.600
44.310
42.140
40.090
38.150
36.320
34.580
32.940
31.380
29.900
28.510
27.180
25.920
24.730
23.600
22.530
21.510
20.540
19.630
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
17.930
17.140
16.390
15.680
15.000
14.360
13.740
13.160
12.600
12.070
11.570
11.090
10.630
10.200
9.779
9.382
9.003
8.642
8.297
7.967
7.653
7.352
7.065
6.791
6.529
6.278
6.038
5.809
5.589
5.379
5.197
4.986
4.802
4.625
4.456
4.294
4.139
3.990
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
3.711
3.579
3.454
3.333
3.217
3.105
2.998
2.896
2.797
2.702
2.611
2.523
2.439
2.358
2.280
2.206
2.133
2.064
1.997
1.933
1.871
1.811
1.754
1.699
1.645
1.594
1.544
1.497
1.451
1.408
1.363
1.322
1.282
1.244
1.207
1.171
1.136
1.103
1.039
1.009
0.980
0.952
0.925
0.898
0.873
0.848
0.825
0.802
0.779
0.758
0.737
0.717
0.697
0.678
0.660
0.642
0.625
0.608
0.592
0.577
0.561
0.547
0.532
0.519
0.505
0.492
0.480
0.467
0.456
0.444
0.433
0.422
0.412
0.401
0.391
0.382
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
-8
-7
-6
-5
-4
-3
-2
-1
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
47
Resistance Table for Frost Protection Indoor and Outdoor Temperature Sensors
Temp.
ꢀF
-19
-18
-17
-16
-15
-14
-13
-12
-11
-10
-9
Resistance
ꢀkꢀ
Temp.
ꢀF
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
Resistance
ꢀkꢀ
Temp.
ꢀF
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
Resistance
ꢀkꢀ
Temp.
ꢀF
Resistance
ꢀkꢀ
"
"
"
181.400
171.400
162.100
153.300
145.000
137.200
129.900
123.000
116.500
110.300
104.600
99.130
94.000
89.170
84.610
80.310
76.240
72.410
68.790
65.370
62.130
59.080
56.190
53.460
50.870
48.420
46.110
43.920
41.840
39.870
38.010
36.240
34.570
32.980
31.470
30.040
28.680
27.390
26.170
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
25.010
23.900
22.850
21.850
20.900
20.000
19.140
18.130
17.550
16.800
16.100
15.430
14.790
14.180
13.590
13.040
12.510
12.000
11.520
11.060
10.620
10.200
9.803
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
5.130
4.948
4.773
4.605
4.443
4.289
4.140
3.998
3.861
3.729
3.603
3.481
3.364
3.252
3.144
3.040
2.940
2.844
2.752
2.663
2.577
2.495
2.415
2.339
2.265
2.194
2.125
2.059
1.996
1.934
1.875
1.818
1.736
1.710
1.658
1.609
1.561
1.515
1.470
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
"
98
1.427
1.386
1.346
1.307
1.269
1.233
1.198
1.164
1.131
1.099
1.069
1.039
1.010
0.983
0.956
0.930
0.904
0.880
0.856
0.833
0.811
0.770
0.769
0.746
0.729
0.710
0.692
0.674
0.658
0.640
0.623
0.607
0.592
0.577
0.563
0.549
0.535
0.521
0.509
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
-8
-7
-6
-5
-4
-3
-2
-1
0
1
2
3
4
9.420
5
9.054
6
8.705
7
8.370
8
8.051
9
7.745
10
11
12
13
14
15
16
17
18
19
7.453
7.173
6.905
6.648
6.403
6.167
5.942
5.726
5.519
5.320
48
Friedrich Air Conditioning Company
10001 Reunion Place, Suite 500
San Antonio, TX 78216
800.541.6645
PD-SERIES
PACKAGED TERMINAL AIR CONDITIONERS
LIMITED WARRANTY
SAVE THIS CERTIFICATE. It gives you specific rights. You may also have other rights which may vary from state to state and province to
province.
In the event that your unit needs servicing, contact your nearest authorized service center. If you do not know the nearest service center,
ask the company that installed your unit or contact us - see address and telephone number above. To obtain service and/or warranty parts
replacement, you must notify an authorized FRIEDRICH Air Conditioning Co. service center, distributor, dealer, or contractor of any defect
within the applicable warranty period.
When requesting service: please have the model and serial number from your unit readily available.
Unless specified otherwise herein, the following applies:
FRIEDRICH PACKAGED TERMINAL AIR CONDITIONERS AND HEAT PUMPS
LIMITED WARRANTY - FIRST YEAR (Twelve (12) months from the date of installation). Any part found to be defective in the material
or workmanship will be repaired or replaced free of charge by our authorized service center during the normal working hours; and
LIMITED WARRANTY - SECOND THROUGH FIFTH YEAR (Sixty (60) months from the date of installation). ON THE SEALED
REFRIGERATION SYSTEM. Any part of the sealed refrigeration system that is defective in material or workmanship will be repaired or
replaced free of charge (excluding freight charges) by our authorized service center during normal working hours. The sealed refrigeration
system consists of the compressor, metering device, evaporator, condenser, reversing valve, check valve, and the interconnecting tubing.
These warranties apply only while the unit remains at the original site and only to units installed inside the continental United
States, Alaska, Hawaii, Puerto Rico, Mexico and Canada. The warranty applies only if the unit is installed and operated in
accordance with the printed instructions and in compliance with applicable local installation and building codes and good trade
practices. For international warranty information, contact the Friedrich Air Conditioning Company - International Division.
Any defective part to be replaced must be made available to FRIEDRICH in exchange for the replacement part. Reasonable proof must be
presented to establish the date of install, otherwise the beginning date of this certificate will be considered to be our shipment date plus sixty
days. Replacement parts can be new or remanufactured. Replacement parts and labor are only warranted for any unused portion of the
unit’s warranty.
We will not be responsible for and the user will pay for:
1. Service calls to:
A) Instruct on unit operation. B) Replace house fuses or correct house wiring. C) Clean or replace air filters. D) Remove the unit
from its installed location when not accessible for service required. E) Correct improper installations.
2. Parts or labor provided by anyone other than an authorized service center.
3. Damage caused by:
A) Accident, abuse, negligence, misuse, riot, fire, flood, or acts of God. B) Operating the unit where there is a corrosive atmosphere
containing chlorine, fluorine, or any damaging chemicals (other than in a normal residential environment). C) Unauthorized
alteration or repair of the unit, which in turn affects its stability or performance. D) Failing to provide proper maintenance and
service. E) Using an incorrect power source. F) Faulty installation or application of the unit.
We shall not be liable for any incidental, consequential, or special damages or expenses in connection with any use or failure of
this unit. We have not made and do not make any representation or warranty of fitness for a particular use or purpose and there
is no implied condition of fitness for a particular use or purpose. We make no expressed warranties except as stated in this
certificate. No one is authorized to change this certificate or to create for us any other obligation or liability in connection with
this unit. Any implied warranties shall last for one year after the original purchase date. Some states and provinces do not allow
limitations on how long an implied warranty or condition lasts, so the above limitations or exclusions may not apply to you. The provisions of
this warranty are in addition to and not a modification of or subtraction from the statutory warranties and other rights and remedies provided
by law.
Performance of Friedrich’s Warranty obligation is limited to one of the following methods:
1. Repair of the unit
2. A refund to the customer for the prorated value of the unit based upon the remaining warranty period of the unit.
3. Providing a replacement unit of equal value
The method of fulfillment of the warranty obligation is at the sole discretion of Friedrich Air Conditioning.
In case of any questions regarding the provisions of this warranty, the English version will govern.
(11-10)
49
2011 PTAC EXPLODED VIEW
50
2011 PTAC PARTS LIST - PDE MODELS
Ref. # Description
Qty
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
2
1
2
1
1
1
1
1
1
1
3
Part #
Part #
Part #
Part #
Part #
Part #
Part #
Part #
1
Air Filter (Pair)
68700138 68700138 68700138 68700138 68700138 68700138 68700138 68700138
68700055 68700056 68700057 68700058 68700082 68700083 68700082 68700083
68700152 68700152 68700152 68700152 68700152 68700152 68700152 68700152
68700096 68700096 68700015 68700096 68700097 68700097 68700077 68700077
68700127 68700127 68700127 68700127 68700127 68700127 68700127 68700127
68700147 68700147 68700147 68700147 68700147 68700147 68700147 68700147
68700134 68700134 68700134 68700134 68700134 68700134 68700134 68700134
68700118 68700118 68700118 68700118 68700118 68700118 68700118 68700118
68700100 68700100 68700107 68700100 68700107 68700107 68700044 68700107
68700113 68700113 68700113 68700113 68700109 68700108 68700109 68700109
68700091 68700108 68700091 68700108 68700113 68700109 68700113 68700108
68700085 68700085 68700017 68700016 68700084 68700084 68700059 68700059
68700124 68700124 68700124 68700124 68700124 68700124 68700124 68700124
68700125 68700125 68700125 68700125 68700125 68700125 68700125 68700125
68700050 68700049 68700001 68700004 68700047 68700048 68700005 68700006
68700081 68700081 68700102 68700102 68700102 68700102 68700080 68700080
68700135 68700135 68700135 68700135 68700135 68700135 68700135 68700135
68700145 68700145 68700145 68700145 68700145 68700145 68700145 68700145
68700158 68700158 68700158 68700158 68700158 68700158 68700158 68700158
68700129 68700129 68700129 68700129 68700129 68700129 68700129 68700129
68700130 68700130 68700130 68700130 68700130 68700130 68700130 68700130
68700136 68700136 68700136 68700136 68700136 68700136 68700136 68700136
68700131 68700131 68700131 68700131 68700131 68700131 68700131 68700131
68700143 68700143 68700143 68700143 68700143 68700143 68700143 68700143
68700122 68700122 68700122 68700122 68700122 68700122 68700122 68700122
68700151 68700151 68700151 68700151 68700151 68700151 68700151 68700151
68700028 68700030 68700032 68700034 68700036 68700038 68700040 68700042
68700079 68700079 68700014 68700013 68700101 68700101 68700101 68700101
68700141 68700141 68700141 68700141 68700141 68700141 68700141 68700141
68700087 68700088 68700087 68700088 68700078 68700086 68700078 68700086
68700072 68700073 68700070 68700071 68700089 68700090 68700089 68700090
68700137 68700137 68700137 68700137 68700137 68700137 68700137 68700137
68700121 68700121 68700121 68700121 68700121 68700121 68700121 68700121
68700133 68700133 68700133 68700133 68700133 68700133 68700133 68700133
68700139 68700139 68700139 68700139 68700139 68700139 68700139 68700139
68700148 68700148 68700148 68700148 68700148 68700148 68700148 68700148
68700144 68700144 68700144 68700144 68700144 68700144 68700144 68700144
68700128 68700128 68700128 68700128 68700128 68700128 68700128 68700128
68700074 68700075 68700098 68700099 68700098 68700099 68700098 68700099
68700126 68700126 68700126 68700126 68700126 68700126 68700126 68700126
68700115 68700115 68700115 68700115 68700115 68700115 68700115 68700115
68700120 68700120 68700120 68700120 68700120 68700120 68700120 68700120
68700117 68700117 68700117 68700117 68700117 68700117 68700117 68700117
68700150 68700150 68700150 68700150 68700150 68700150 68700150 68700150
68700105 68700105 68700105 68700105 68700105 68700105 68700105 68700105
68700103 68700104 68700103 68700104 68700103 68700104 68700103 68700104
68700123 68700123 68700123 68700123 68700123 68700123 68700123 68700123
Air Guide
*
Ambient Temperature Sensor
Basepan
3
4
5
6
7
8
9
9
Bearing Cap
Bearing Support, Rubber sub-assy
Bellows Drain Valve
Bottom Inner Wall Brace
Capacitor
Capacitor, Fan
Capacitor, Fan
10 Capillary Tube Assy
11 Chassis Flange, Right
12 Chassis Flange, Left
13 Compressor Assy
14 Condenser Coil
15 Condenser Fan Blade
16 Control Door
17 Control Panel Overlay Escutcheon
18 Cross flow fan support, left
19 Cross flow fan support, right
20 Cross Flow Fan, Evaporator
21 Deck
22 Discharge Grille
23 Discharge Screen
24 Display Board
25 Electric Box Assy
26 Evaporator Coil
27 Evaporator Foam Drain Tray
28 Fan Motor, Condenser
29 Fan Motor, Evaporator
30 Fan Shroud + Motor Mount
31 Fresh Air Door
32 Fresh Air Door Cable
33 Fresh Air Door Filter
34 Fresh Air Door Lever
35 Front Panel Assy (Complete)
36 Front Panel clip
37 Heater
38 Heater Wiring Block Board
39 Inner Wall assy
40 Junction box
41 Junction lid
42 Lower cover of Fresh Air Door Lever
44 Relay board
45 Logic board
46 Motor Bracket, Indoor
*
Overload Protector
68700052 68700051
n/a
68700162 68700053 68700161 68700010 68700009
47 Shroud Brace
68700119 68700119 68700119 68700119 68700119 68700119 68700119 68700119
68700110 68700110 68700110 68700110 68700110 68700110 68700110 68700110
68700156 68700156 68700156 68700156 68700156 68700156 68700156 68700156
68700132 68700132 68700132 68700132 68700132 68700132 68700132 68700132
68700116 68700116 68700116 68700116 68700116 68700116 68700116 68700116
68700112 68700111 68700112 68700111 68700112 68700111 68700112 68700111
68700153 68700153 68700153 68700153 68700153 68700153 68700153 68700153
68700149 68700149 68700149 68700149 68700149 68700149 68700149 68700149
68700154 68700154 68700154 68700154 68700154 68700154 68700154 68700154
68700155 68700155 68700155 68700155 68700155 68700155 68700155 68700155
*
Temperature Sensor
48 Terminal Board, Input power
49 Thermal baffle
50 Top Cover Plate Sub-Assy
51 Transformer
*
Tube Thermistor
52 Upper cover of Fresh Air Door Lever
53 Wiring Terminal, 2 position 24VAC
54 Wiring Terminal, 7 position 24VAC
55 Compressor Grommets
68700046 68700046 68700046 68700046 68700046 68700046
68700046 68700076
51
2011 PTAC PARTS LIST - PDH MODELS
Ref. # Description
Qty Friedrich # Friedrich # Friedrich # Friedrich # Friedrich # Friedrich # Friedrich # Friedrich #
1
2
*
Air Filter (Pair)
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
2
2
1
1
1
2
1
1
1
3
1
1
68700138 68700138 68700138 68700138 68700138 68700138 68700138 68700138
68700055 68700056 68700057 68700058 68700082 68700083 68700082 68700083
68700152 68700152 68700152 68700152 68700152 68700152 68700152 68700152
68700096 68700096 68700097 68700097 68700097 68700097 68700160 68700077
68700127 68700127 68700127 68700127 68700127 68700127 68700127 68700127
68700147 68700147 68700147 68700147 68700147 68700147 68700147 68700147
68700134 68700134 68700134 68700134 68700134 68700134 68700134 68700134
68700118 68700118 68700118 68700118 68700118 68700118 68700118 68700118
68700100 68700100 68700107 68700100 68700107 68700107 68700043 68700107
68700113 68700113 68700113 68700113 68700109 68700108 68700109 68700109
68700091 68700108 68700091 68700108 68700113 68700109 68700113 68700108
68700085 68700085 68700060 68700060 68700084 68700084 68700018 68700019
68700124 68700124 68700124 68700124 68700124 68700124 68700124 68700124
68700125 68700125 68700125 68700125 68700125 68700125 68700125 68700125
68700050 68700049 68700002 68700003 68700047 68700048 68700007 68700008
68700081 68700081 68700102 68700102 68700102 68700102 68700080 68700080
68700135 68700135 68700135 68700135 68700135 68700135 68700135 68700135
68700145 68700145 68700145 68700145 68700145 68700145 68700145 68700145
68700158 68700158 68700158 68700158 68700158 68700158 68700158 68700158
68700129 68700129 68700129 68700129 68700129 68700129 68700129 68700129
68700130 68700130 68700130 68700130 68700130 68700130 68700130 68700130
68700136 68700136 68700136 68700136 68700136 68700136 68700136 68700136
68700131 68700131 68700131 68700131 68700131 68700131 68700131 68700131
68700143 68700143 68700143 68700143 68700143 68700143 68700143 68700143
68700122 68700122 68700122 68700122 68700122 68700122 68700122 68700122
68700151 68700151 68700151 68700151 68700151 68700151 68700151 68700151
68700029 68700031 68700033 68700035 68700037 68700039 68700041 68700027
68700079 68700079 68700054 68700054 68700101 68700101 68700101 68700101
68700141 68700141 68700141 68700141 68700141 68700141 68700141 68700141
68700087 68700088 68700087 68700088 68700078 68700086 68700089 68700086
68700072 68700073 68700070 68700071 68700089 68700090 68700026 68700090
68700137 68700137 68700137 68700137 68700137 68700137 68700137 68700137
68700121 68700121 68700121 68700121 68700121 68700121 68700121 68700121
68700133 68700133 68700133 68700133 68700133 68700133 68700133 68700133
68700139 68700139 68700139 68700139 68700139 68700139 68700139 68700139
68700148 68700148 68700148 68700148 68700148 68700148 68700148 68700148
68700144 68700144 68700144 68700144 68700144 68700144 68700144 68700144
68700128 68700128 68700128 68700128 68700128 68700128 68700128 68700128
68700074 68700075 68700098 68700099 68700098 68700099 68700098 68700099
68700126 68700126 68700126 68700126 68700126 68700126 68700126 68700126
68700115 68700115 68700115 68700115 68700115 68700115 68700115 68700115
68700120 68700120 68700120 68700120 68700120 68700120 68700120 68700120
68700117 68700117 68700117 68700117 68700117 68700117 68700117 68700117
68700150 68700150 68700150 68700150 68700150 68700150 68700150 68700150
68700093 68700092 68700093 68700092 68700093 68700092 68700093 68700092
68700106 68700106 68700106 68700106 68700106 68700106 68700106 68700106
68700103 68700104 68700103 68700104 68700103 68700104 68700103 68700104
68700123 68700123 68700123 68700123 68700123 68700123 68700123 68700123
Air Guide
Ambient Temperature Sensor
3
4
5
6
7
8
9
9
Basepan
Bearing Cap
Bearing Support, Rubber sub-assy
Bellows Drain Valve
Bottom Inner Wall Brace
Capacitor
Capacitor, Fan
Capacitor, Fan
10 Capillary Tube Assy
11 Chassis Flange, Left
12 Chassis Flange, Right
13 Compressor Assy
14 Condenser Coil
15 Condenser Fan Blade
16 Control Door
17 Control Panel Overlay Escutcheon
18 Cross flow fan support, left
19 Cross flow fan support, right
20 Cross Flow Fan, Evaporator
21 Deck
22 Discharge Grille
23 Discharge Screen
24 Display Board
25 Electric Box Assy
26 Evaporator Coil
27 Evaporator Foam Drain Tray
28 Fan Motor, Condenser
29 Fan Motor, Evaporator
30 Fan Shroud + Motor Mount
31 Fresh Air Door
32 Fresh Air Door Cable
33 Fresh Air Door Filter
34 Fresh Air Door Lever
35 Front Panel Assy (Complete)
36 Front Panel clip
37 Heater
38 Heater Wiring Block Board
39 Inner Wall assy
40 Junction box
41 Junction lid
42 Lower cover of Fresh Air Door Lever
43 Solenoid Coil
44 Relay board
45 Logic board
46 Motor Bracket, Indoor
*
Overload Protector
68700052 68700051 68700012
n/a
68700053
n/a
n/a
68700011
47 Shroud Brace
68700119 68700119 68700119 68700119 68700119 68700119 68700119 68700119
68700156 68700156 68700156 68700156 68700156 68700156 68700156 68700156
68700132 68700132 68700132 68700132 68700132 68700132 68700132 68700132
68700116 68700116 68700116 68700116 68700116 68700116 68700116 68700116
68700112 68700111 68700112 68700111 68700112 68700111 68700112 68700111
68700153 68700153 68700153 68700153 68700153 68700153 68700153 68700153
68700149 68700149 68700149 68700149 68700149 68700149 68700149 68700149
68700154 68700154 68700154 68700154 68700154 68700154 68700154 68700154
68700155 68700155 68700155 68700155 68700155 68700155 68700155 68700155
48 Terminal Board, Input power
49 Thermal baffle
50 Top Cover Plate Sub-Assy
51 Transformer
*
Tube Thermistor
52 Upper cover of Fresh Air Door Lever
53 Wiring Terminal, 2 position 24VAC
54 Wiring Terminal, 7 position 24VAC
55 Compressor Gasket
n/a
n/a
n/a
n/a
n/a
n/a
68700045 68700076
56 4-way Reversing Valve Assy
56 4-way Reversing Valve Assy
68700094 68700094 68700094 68700094 68700095 68700095 68700095 68700095
68700062 68700062 68700063 68700063 68700061 68700061 68700020 68700021
52
FRIEDRICH AIR CONDITIONING CO.
10001 Reunion Place, Ste. 500, San Antonio, TX 78216
P 210-546-0500 | F 210-546-0731
Printed in the U.S.A.
PD-ServMan-E (2-11)
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