Friedrich Heat Pump HEAT PUMPS User Manual

INSTALLATION &  
OPERATION GUIDE  
PTAC  
PACKAGED TERMINAL  
AIR CONDITIONERS  
& HEAT PUMPS  
Standard Control  
Remote Thermostat  
Seacoast Protected  
920-087-04 (10-06)  
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920-087-04  
Thank you for your decision to purchase the newly designed Friedrich Packaged Terminal Air Conditioner (PTAC). We are  
condent that you will nd this unit a quiet and efcient example of Friedrich reliability.  
This Installation and Operation Manual has been designed to insure maximum satisfaction in the performance of your unit.  
For years of trouble-free service, please follow the installation instructions closely. We cannot overemphasize the importance  
of proper installation. We have added new information to the basic instructions to help you achieve success.  
Remember, proper installation is not difcult but it is essential.  
Model Number Code  
PD H 07 K 3 S B 1  
Engineering Digit  
Design Series  
Series  
PD = Friedrich Digital PTAC  
System  
X = Accessory  
E = Cooling with or without electric heat  
H = Heat Pump with Auxiliary Heat  
Options  
S
C
=
=
Standard  
Seacoast Protection  
Nominal Cooling Capacity  
07 = 7,000 Btuh  
Nominal Heater Size (@ 230V or 265V)  
0 = No Heater (only on PDE09K, PDE12K AND PDE15K)  
09 = 9,000 Btuh  
12 = 12,000 Btuh  
2 = 2.5 KW*  
3 = 3.4 KW  
5 = 5.0 KW**  
* 2.5 kw only available on 7000, 9000, and 12000 BTU models  
** 5.0 kw only available on 12000 and 15000 BTU models  
15 = 15,000 Btuh  
Voltage  
K= 230/208V - 1 Ph. - 60 Hz.  
R= 265V - 1 Ph. - 60 Hz.  
Please read this manual thoroughly prior to equipment installation or operation. It is the installer’s responsibility  
to properly apply and install the equipment. Installation must be in conformance with the NFPA 70-2002 National  
Electric Code or current edition and Uniform Mechanical Code current edition and applicable local or national codes.  
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PTAC Installation Recommendations  
For proper PTAC unit performance and maximum operating life please refer to the minimum installation clearances below:  
Figure 1  
PTAC units should be installed  
no closer than 12" apart when  
two units are side by side. If  
THREE OR MORE PTACs  
ADJACENT 36" MINIMUM  
VIEW: OUTSIDE  
BUILDING ELEVATION  
three or more PTAC units are to  
operate next to one another allow  
a minimum of 36" between units.  
TYP.  
WINDOW  
Also, a vertical clearance of 60"  
should be maintained between  
36"  
units installed.  
TWO ADJACENT  
PTACs 12" MINIMUM  
60"  
60" VERTICAL MIMUMUM  
BETWEEN PTACs  
GROUND FLOOR PTACs  
6" MINIMUM FROM GRADE  
12"  
6"  
Figure 2  
For PTACs on the ground oor or anytime obstructions are present, use the following guidelines:  
• For minor obstructions  
such as lamp poles  
or small shrubbery a  
clearance of 12" from the  
outdoor louver should be  
maintained.  
TYP. BUILDING ( PLAN VIEW )  
36"  
36"  
• For major obstructions  
such as a solid fence, wall  
or other heat rejecting  
device like a condensing  
unit, a minimum distance  
of 36" should be kept.  
PTAC  
PTAC  
36"  
PTAC  
12"  
12" MINIMUM, MINOR  
SHRUB  
POLE  
OBSTRUCTIONS  
36" MIMUMUM, MAJOR  
OBSTRUCTIONS  
FENCE OR WALL  
CONDENSING UNIT  
The above suggestions are for reference only and do not represent all possible installations. Please contact the factory for  
information regarding affects of other installation arrangements. By following these simple recommendations you can be  
condent that your Friedrich PTAC will provide years of worry free operation.  
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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 specically designed control software for the PTAC industry Friedrich has accomplished what other Manufactur-  
er’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 benet to the owner.  
Digital Temperature  
Readout  
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.  
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 guesswork out of unit control delivering a more  
enjoyable experience and eliminating front-desk calls.  
One-Touch Operation  
Individual Mode and  
Fan Control Buttons  
By having separate control buttons and indicators for both fan and mode settings the Friedrich digital control eliminates the confu-  
sion of previous digital PTACs. The accurate temperature setting provides greater guest comfort than other systems.  
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 ve seconds prior to energizing 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  
Remote Thermostat  
Operation  
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 accessory kit.  
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.  
Internal Diagnostic  
Program  
The new Friedrich digital PTAC features a self diagnostic program that can alert maintenance to component failures or operating  
problems. The internal diagnostic program saves properties valuable time when diagnosing running problems.  
The self diagnosis program will also store error codes in memory if certain conditions occur and correct themselves such as ex-  
treme 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 benets to a remote mounted  
stat without the complication or cost of a wall mounted thermostat.  
Constant Comfort  
Room Monitoring  
By limiting the operating range the property can save energy by eliminating max cool” or max heat” situations common with older  
uncontrolled systems. The new electronic control allows owners to set operating ranges for both heating and cooling independently  
of one another.  
Electronic Temperature  
Limiting  
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 xtures.  
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  
The new Friedrich PTAC uses a digital thermostat to accurately monitor the outdoor coil conditions to allow the heat pump to run  
whenever conditions are correct. Running the PTAC in heat pump mode save energy and reduces operating costs. The digital  
thermostat allows maximization of heat pump run time.  
Digital Defrost  
Thermostat  
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Friedrich Digital Control Features Continued  
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 associ-  
ated with heat pump units.  
Instant Heat  
Heat Pump Mode  
The digital control monitors indoor conditions to ensure that the room temperature is within ve degrees of the setpoint. If neces-  
sary the unit will cycle the electric heat to maintain the temperature. This feature ensures guest comfort by delivering the heating  
benets of an electric heater while maintaining the efciency benets of a heat pump.  
Even Heat Monitoring  
Fan Cycle Control  
The owner may choose between fan cycling or fan continuous mode based on property preference. (Note: Even heat monitor-  
ing and quiet start/stop fan delay only operate in fan cycle mode) Fan continuous mode is used to keep constant airow circula-  
tion in the room during all times the unit is ON. Fan cycle will conserve energy by only operating the fan while the compressor  
or electric heater is operating.  
In the event of a compressor failure in heat pump mode the compressor may be locked out to provide heat through the resis-  
tance heater. This feature ensures that even in the unlikely event of a compressor failure the room temperature can be main-  
tained until the compressor can be serviced.  
Emergency Heat Override  
Desk Control Ready  
All Friedrich digital PTACs have low voltage terminals ready to connect a desk control energy management system. Control-  
ling the unit from a remote location like the front desk can reduce energy usage and requires no additional accessories at the  
PTAC.  
The frost sensor protects the compressor from damage in the event that airow is reduced or low outdoor temperatures cause  
the indoor coil to freeze. When the indoor coil reaches 30°F the compressor is diabled 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 a indoor fan system design that reduces sound levels without lowering airow and  
preventing proper air circulation.  
Ultra-Quiet Air System  
High Efciency  
The Friedrich PTAC benets quality components and extensive development to ensure a quiet, efcient and dependable unit.  
Friedrichs single-motor design allows for enhanced outdoor airow and simplies the unit design without the need for redun-  
dant components.  
Single Motor  
High efciency rotary compressors are used on all Friedrich PTACs to maximize durability and efciency.  
Rotary Compressor  
Auxiliary Fan Ready  
The Friedrich PTAC features a 24V AC terminal for connection to an auxiliary fan that may be used to transfer air to adjoining  
rooms. Auxiliary fans can provide conditioning to multiple rooms without the requirement of multiple PTAC units.  
All Friedrich PTACs are built with .04" endplates made from aluminum as opposed to steel. The endplates are typically the most  
susceptible area for corrosion and aluminum is far more resistant to corrosion than even coated steel.  
Aluminum Endplates  
Seacoast Protection  
Optional Seacoast protection is available to protect the outdoor coil from harsh environments. The Friedrich Seacoast process  
includes dipping the entire outdoor coil in a 7-step coating process that provides superior protection to only coating the ns of  
the coil.  
All Friedrich PTAC return air lters feature an anti-microbial element that has proven to prevent mold and bacterial growth in  
laboratory testing. PDXFT replacement lter kits feature the same anti-microbial agent. All lters are washable and reusable  
and are easily accessed from the top of the unit without the removal of the front cover.  
Top Mounted Anti-  
microbial Air Filters  
Friedrich PTAC units are capable of introducing up to 70 CFM of outside air into the conditioned space. The outdoor air passes  
through a washable mesh lter to prevent debris from entering the airstream.  
Filtered Fresh Air Intake  
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Installation Instructions PXDR10 Drain Kit  
NOTE: Determine whether drain will be located within the wall, on the indoor side, or will drain to the exterior of the building. Follow  
appropriate instructions below depending on your particular type of installation.  
Internal Drain (optional for new construction)  
NOTE: If installing an internal drain, you MUST install a drain kit  
on the wall sleeve before the wall sleeve is installed.  
Figure 3  
Drain Kit Location and Installation  
1.  
2.  
3.  
Refer to Figure 3 below and locate the drain within the  
"Primary" area for best drainage. Maintain at least a 1/2"  
clearance from the embossed area.  
Using the mounting plate with the 1/2" hole as a template,  
mark and drill two, 3/16" mounting holes and a 1/2" drain  
hole.  
Secondary area  
Primary area - no foam insulation  
Remove the backing from the gasket and mount it on the  
at side of the mounting plate. (See Figure 4.) Insert the  
drain tube through the hole in the gasket and mounting  
plate so the tube ange will be against the wall sleeve.  
If the drain must be located in the  
secondary area, the foam insulation  
must be cut away and removed to  
allow access to the drain.  
3"  
7.6 cm  
4.  
Position the assembly beneath the drilled holes and  
secure it with #10-24 x 1/2" machine screws and lock  
nuts provided. Seal the tops of the screws with silicone  
caulking.  
Screw  
Wall sleeve  
Gasket  
5.  
6.  
Use 1/2" I.D. copper tube, PVC pipe, or vinyl hose (obtained  
locally) to connect the internal drain tube to the drain system  
in the building.  
Mounting plate  
Nut  
Drain tube  
Referring to Detail A on page 6, locate and assemble the  
(2) two cover plates and gaskets over the drain holes at  
the rear of the wall sleeve. Attach them with the #10 sheet  
metal screws provided. Make certain that the four overow  
slots at the rear of the wall sleeve are not blocked (See  
drawing of the back of the sleeve on page 6).  
7.  
If a deep wall extension (PXWE) is used, after installing  
the eld supplied ashing, caulk as required. Be sure to  
caulk around the ashing and the wall sleeve where the  
hole was drilled for the drain tube.  
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External Drain (for new construction or unit replacement)  
When using an external drain system, the condensate is removed through either of two drain holes on the back of the wall sleeve.  
Select the drain hole which best meets your drainage situation and install the drain kit. Seal off the other with a cover plate.  
Drain Tube Installation  
Cover Plate Installation  
1. Peel the backing tape off the gaskets and apply the  
sticky side to one cover plate and one mounting plate  
as shown in Details A and B.  
4. Mount the foam gasket to the cover plate. Using two  
#10 x 1/2" sheet metal screws (provided), attach the  
cover plate to the remaining drain hole. Make certain  
the large ange on the plate is positioned at the bottom  
of the sleeve.  
2. Place the drain tube through the gasket and the mounting  
plate with the ange toward the wall sleeve.  
5. Discard the additional cover plate, gasket, machine  
screws, and locknuts.  
3. Attach the drain tube assembly to one of the two drain  
holes at the rear of the wall sleeve. The large ange  
on the mounting plate is positioned at the bottom of the  
sleeve facing toward the sleeve, Detail B. When the  
drain tube is positioned at the desired angle, tighten the  
screws.  
PXDR1O  
QUANTITY  
DESCRIPTION  
COVER PLATES  
MOUNTING PLATE  
DRAIN TUBE  
MOUNTING PLATE GASKETS  
#10 X 1/2" MOUNTING SCREWS  
10-24 X 1/2" MACH. SCREWS  
LOCKNUTS  
2
1
1
3
4
2
2
NOTE: If the wall sleeve has not been installed, the drain tube  
must be rotated to a horizontal position until after the  
sleeve is installed. Tighten the mounting plate screws  
when the tube is in the proper position. Make certain  
that the four overow slots at the rear of the wall sleeve  
are not blocked. (See the drawing below.)  
Figure 4  
Drain Kit Installation  
Foam gasket  
Mounting plate  
DETAIL A  
1
Foam gasket  
/
2" O.D. tube  
Mounting plate  
#10 sheet metal screws  
DETAIL B  
NOTES:  
The large ange on the mounting plate is positioned at the bottom of the sleeve facing toward the sleeve. The drain tube must be rotated to a horizontal  
position to allow for the wall sleeve to be installed into the wall. Once the wall sleeve is installed, return the drain tube to a downward angle.  
8
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Wall Sleeve Installation Instructions (PDXWS)  
NOTE: Insure that the unit is only installed in a wall structurally adequate to support the unit including the sleeve, chassis and accessories.  
If the sleeve projects more than 8" into the room, a subbase or other means of support MUST be used. Please read these instructions  
completely before attempting installation.  
Figure 5  
Typical Wall Sleeve Installation  
16¼"  
Electrical receptacle  
(41.3 cm)  
42¼"  
n.  
(107.3 cm) min.  
Lintel to support masonry walls  
50" (127 cm) mi  
Insulation  
10"  
(25.4 cm)  
max.  
13¾  
(34.9 cm)  
"
Electrical receptacle  
Wall opening  
Wall sleeve  
Insulation  
Smooth side of screw  
clip facing into room  
Note: All 230/208V units are manufactured with a 60" power cord. The receptacle  
locations above must be followed to ensure proper connections.  
For Deep Wall Installation See Section II  
The following instructions apply ONLY to walls less than  
13 1/4" in depth.  
1. From inside the building, position the wall sleeve in the  
opening and push it through the wall so it protrudes at least  
1/4" on the outside, note Figure 5.  
Electrical shock hazard.  
Turn electric power OFF at the fuse box or service panel  
before making any electrical connections and ensure a  
proper ground connection is made before connecting line  
voltage. Failure to do so can result in property damage,  
personal injury and/or death.  
2. Position the wall sleeve with a slight tilt towards the outside  
to facilitate condensate drainage. It should be level side-to-  
side and the front should be 1/4 bubble higher than the back.  
DO NOT allow any pitch toward the inside.  
9
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Figure 6  
Dimensions  
A
B
Dimension*  
Allow  
for wall  
nishing  
Allow for oor nishing  
¼"  
(6.4 cm)  
min.  
A
(Minimum)  
Min.  
Max  
No Accessories  
With Subbase  
¼"  
(6.4 mm)*  
¼"  
(6.4 mm)  
---  
1¾"  
3½"  
5"  
(4.5 cm)  
(8.9cm)  
(12.7cm)  
13¾"  
(35 cm)  
With Lateral Duct  
¾"  
¼"  
(1.9 cm)  
(6.4 mm)  
---  
B
Wall  
* If more than one accessory is to be used, use the maximum  
dimension. If the wall thickness is more than 13¾" (35cm) -  
(A + ¼" [6.4 mm]), a sleeve extension must be used.  
3. Drill two 3/16" holes through each side of the sleeve  
approximately 4" from top and 4" from bottom of sleeve.  
Screw four #10 x 1" screws (included) or appropriate  
fasteners for your installation, through the holes in the sides  
of the wall sleeve.  
5. If the chassis and exterior grille are to be installed later, leave  
the weatherboard and center support in place, otherwise  
remove and dispose of them.  
6. Provide a support lintel if the wall sleeve is installed in a  
concrete or masonry wall. (See Figure 7.)  
4. Apply sealant around the wall sleeve where it projects  
through the inside and outside wall surfaces. Apply the  
sealant to the screw heads or the tops of the fasteners used  
in Step #3.  
NOTE: When sealing the sleeve on the outside of the  
building, be careful NOT to let the sealant block the two  
condensate drain holes or the four overow slots at the  
bottom ange of the sleeve.  
Figure 7  
Main studs  
Jack studs  
L i n t e l I n s t a l l a t i o n  
Lintel  
Main studs  
Jack studs  
Mounting screw holes  
No holes in bottom of wall  
sleeve unless drain kit is used  
NOTE: Construct wall opening to comply with all applicable  
building codes.  
10  
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Section II — Deep Wall Installation (PXWE)  
If the wall is thicker than allowed in the notes in Figure 6, a sheet  
6. Condensate notches and overow slots must be kept clear  
metal wall sleeve extension and ashing MUST be used.  
of sealant and gaskets so condensate can ow freely into  
the wall sleeve extension.  
Installation Instructions for the PXWE – 4" Wall  
Sleeve Extension  
The following points MUST be considered when installing a wall  
sleeve extension:  
NOTE: Improper fabrication or installation of a wall sleeve  
extension will impair PTAC performance.  
Extension Installation  
Secure the wall sleeve extension to the wall sleeve before  
installing it in the wall. Refer to Figure 8 for a guide for fabrication  
of a condensate drip panel. The panel MUST extend the full depth  
of the wall sleeve and the wall sleeve extension.  
1 Provision must be made to direct excess condensate from  
the back of the wall sleeve into the extension then outside  
the building or to a drainage system.  
2. Air bafes must be mounted to properly direct air ow to  
Pay particular care in sealing and caulking the panel where it  
makes contact with the wall sleeve (see Figure 8). After installation  
in the wall, secure with fasteners through the sides. Use a good  
grade of silicone sealant around the sleeve extension. Seal all  
exposed screw heads. When the installation is complete, the  
outside grille should be attached to the wall sleeve extension.  
and from the condenser.  
3. The wall sleeve extension design must allow for the proper  
mounting of the grille.  
4. Caulking is required at all sites where condensate or  
external water could potentially inltrate into the building.  
5. Fabricate and install metal ashing in wall to serve as a drip  
panel. Refer to drawing for more information.  
Wall Sleeve Extension Sealant Locations  
IMPORTANT NOTE: The silicone bead MUST extend 3"  
up the side of the two anges to prevent condensate  
from leaking.  
Wall Sleeve  
Outside Edge  
Insulation  
Air Baffles  
Sealant inside (4) bottom corners  
Condensate  
Drip Panel  
(Field  
Drip  
Edge  
Condensate  
Notches (4)  
Supplied)  
Width of Wall  
Wall Sleeve Extension, 42" X 16" Frame, 20 gauge minimum, painted or aluminium  
PXWE Wall Sleeve  
Extension  
11  
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Installation Instructions Model PXGA Standard Grille  
1. Remove the center support and weatherboard if still installed  
in the sleeve.  
5. Grasp the grille by the attached plastic handles. Position  
it with the condensate drain knockouts facing down. From  
inside the building, maneuver the grille through the wall  
sleeve and pull toward you until the screw heads are  
inserted into the keyhole slots at the top of the wall sleeve.  
Tighten the two screws completely.  
2. Insert six plastic grommets into the grille openings from the  
outside of the grille as shown in Figure 9.  
3. Insert two #8 x 3/8" sheet metal screws (provided) in the top  
two outside edge plastic grommets, and tighten them half way  
into the grommets.  
6. Insert the remaining screws into the remaining holes and  
tighten securely.  
4. CAUTION: Bodily injury can be caused by grilles falling from  
a building during installation. It is recommended that a safety  
line be attached to the grille and an anchor point inside the  
building during installation.  
Figure 9  
Standard Grille  
Wall sleeve  
Weatherboard  
Center support  
PXGA Standard Grille  
Description  
Quantity  
1
6
6
Stamped Aluminum Grille  
Plastic Grommets  
Plastic  
grommets  
Plastic handles  
3
8
#8 x / " Sheet Metal Screws  
12  
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A. Electrical Rating Tables  
All 230/208 volt units are equipped with power cords. See Appendix A on page 21 for wiring instructions on 265V units.  
NOTE: Use Copper Conductors ONLY. Wire sizes are per NEC, check local codes for overseas applications.  
Table 1  
250 V Receptacles and Fuse Types  
Use ONLY wiring size recommended for  
single outlet branch circuit.  
WIRE SIZE  
AMPS  
15  
20*  
30  
30  
Use ONLY type and size fuse or HACR cir-  
cuit 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.  
RECEPTACLE  
FUSE/CIRCUIT  
BREAKER  
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.  
*
Unit MUST be grounded from branch circuit  
through service cord to unit, or through sep-  
arate ground wire provided on permanently  
connected units. Be sure that branch circuit  
or general purpose outlet is grounded. The  
eld 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.  
Table 2  
Recommended branch circuit wire sizes*  
GROUNDING  
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  
The eld 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  
WIRE SIZING  
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.  
ELECTRICSHOCKHAZARD! Turnoffelectricpowerbeforeserviceorinstallation.  
All electrical connections and wiring MUST be installed by a qualied electrician and  
conform to the National Electrical Code and all local codes which have jurisdiction.  
Failure to do so can result in property damage, personal injury and/or death.  
B. 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 effective August 2004.  
NOTE: The LCDI device is not intended to be used as a switch.  
Once plugged in the unit will operate normally without the need to  
reset the LCDI device. If the LCDI device trips and requires resetting  
the cause of the trip should be identied prior to further use of the  
PTAC.  
To test your power supply cord:  
1. Plug power supply cord into a grounded 3 prong outlet.  
If the device fails to trip when tested or if the power supply cord is  
damaged it must be replaced with a new supply cord obtained from  
the product manufacturer, and must not be repaired.  
2. Press RESET.  
3. Press TEST (listen for click; Reset button trips and pops out).  
4. Press and release RESET (listen for click; Reset button  
latches and remains in). The power supply cord is ready for  
operation.  
Figure 10b  
30A LCDI Device  
7"  
4.1"  
Figure 10a  
2"  
15/20A LCDI Device  
2"  
Test Button  
Reset Button  
Test Button  
Reset Button  
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Installation Checklist  
Inspect all components and accessories for damage  
before and after installation.  
Ensure that the chassis is installed in a 16" high x 42" wide  
wall sleeve that is no deeper than 13 3/4". A bafe kit is  
required if the sleeve exceeds that depth.  
Remove the cardboard wall sleeve support and grille  
weatherboard.  
Ensure that drapes, bed, bedspread, furniture, etc. DO  
NOT block either return or discharge air grilles.  
Check for proper wall sleeve installation in accordance  
with the wall sleeve installation instructions.  
Inspect the condenser air inlet and outlet for any  
obstructions (shrubbery, etc.)  
Check for a subbase kit or other means of structural  
support which is required for ALL installations projecting  
more than 8" into room.  
Ensure that 'reset' button is pressed on LCD device (only  
on cord connected models)  
Install the recommended Condensate Drain Kits for  
complete condensate removal.  
Section III – Chassis Installation  
Check to be sure the wall sleeve, extension (if used), grille, and drain kit are installed properly before chassis installation.  
1. Remove the weatherboard and center support from the sleeve  
(if still in place). Be sure an outdoor grille is attached.  
NOTE: To avoid breaking the door or hinge pins, do not apply  
excessive force when installing  
Pins  
2
1
Wall sleeve  
Control  
Door  
Weatherboard  
Center support  
Front Panel  
3. Remove the two chassis shipping brackets from the ends  
of the shipping pallet.  
IMPORTANT: Use a wall sleeve adapter kit (PXSE) if  
installing a P-Series chassis in a T-Series sleeve.  
3
Compressor  
Suffocation hazard  
Keep bag away from babies and children.  
Do NOT use in cribs, beds or playpens. Destroy  
immediately after opening. This bag is NOT a toy.  
Chassis  
shipping bracket  
Failure to do so can result in personal injury and/or death  
Shipping pallet  
2. Remove the front cover contained in a protective plastic bag  
from chassis. Remove the bag and dispose of it properly.  
IMPORTANT: When installing a Friedrich P-Series PTAC into an  
existing sleeve, it is important to ensure that the unit is installed  
completely. Inspection of the air seal between the condenser air  
bafes and around the indoor mounting ange is recommended.  
In some cases additional gaskets or bafing may be required.  
If the control door is not installed, follow these steps:  
From the front of the cover, slide the right control door pin  
into the hole on the right side of the front cover. Slide the  
left door pin into the hole on the left side of the front cover  
opening and snap it into place.  
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4. Center the chassis in the pre-installed sleeve and carefully  
them into the quick nuts located on the chassis to secure  
the cover. If the unit has been placed such that there is no  
room to insert the thumbscrews from the bottom, request a  
Side Mounting kit (Part No. PXSM) from Friedrich. Locate  
the service cord or conduit in the notch at the bottom right  
of the front cover.  
push the chassis until the chassis ange and gasket contact  
the sleeve ange.  
4
6
Wall sleeve  
Wall sleeve flange  
Chassis flange  
and gasket  
7. If the lters are not already installed in tracks in the plastic  
cover, slide them into place.  
Copper refrigerant tubes are NOT handles.  
Do NOT use tubing to lift or move chassis.  
8. Plug the cord (if applicable) into the appropriate receptacle.  
Extra cord may be coiled inside the front cover behind the  
return air grille. Restore power to the unit.  
NOTE: If the unit is mounted ush to the oor, the service cord  
MUST be rerouted at the bottom of the front cover on the side  
closest to the receptacle. A notch MUST be made in the front  
cover side where the cord exits the unit. It is the responsibility of  
the installer to create an exit notch. See diagram 8 for suggested  
opening size and placement.  
7
5
Screw clips  
Chassis  
mounting screw  
Chassis  
flange  
To remove the front cover, remove the thumbscrews  
at the bottom back corners of the cover (or sides).  
Pull the bottom end forward and lift it up to clear the  
L bracket across the top of the chassis.  
5. Locate the four #10 x 1" chassis mounting screws. Tighten  
the screws into the clips - adjacent to the alignment dimples  
on the mounting brackets on the wall sleeve ange (two  
per side).  
8
6. Install the front cover assembly (including the discharge  
grille) by placing the top of the cover onto the 90° angle  
bracket along the top of the chassis. Rotate the bottom into  
place and insert the included thumb screws into the slots  
located at the bottom back corners of the cover. Tighten  
Not to scale  
If a remote thermostat is to be installed, proceed to page 18, Step 1. For a 265 V unit, proceed to Appendix A, Step 1.  
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Digital Control User Input Conguration  
The adjustable control dip switches are located at the lower left hand portion of the digital Smart Center. The inputs are only visible  
and accessible with the front cover removed from the PTAC.  
Heating Range Switches 1 & 2  
Dip Switch Setting  
1) Electronic Temperature Limiting – Switches 1-4  
Temperature  
Range  
Dip  
Switch  
The digital control is set from the factory to allow a tempera-  
ture range between 60°F and 90°F in both heating and cooling  
mode. Dip Switches 1-4 can be used to set high and low limits  
for either heating or cooling or both.  
Low  
High  
90  
87  
84  
81  
1
2
60  
60  
60  
60  
On  
Off  
Off  
On  
On  
On  
Off  
Off  
From the factory all four switches are in the up ‘ON’ position.  
The charts to the right show the available electronic limiting  
ranges.  
2) Fan Cycle Control – Switch 5  
Cooling Range Switches 3 & 4  
All PTACs are shipped from the factory with Dip Switch 5 in the  
OFF’ position to cycle the fan only when there is a demand for  
the compressor or heater. As an option the fan may be set to  
‘continuous’ mode by switching Dip Switch 5 to ‘ON’ position to  
run the fan continuously while the unit is powered on.  
To ensure that the room temperature is maintained evenly while  
in fan cycle mode the Even Temp Load Anticipation feature is  
enabled. Quiet Fan Delay is also enabled in fan cycle mode to  
lessen the acoustical change between compressor start up and  
shut off by running the fan for 5 seconds before each demand  
cycle, and 30 seconds after cooling or 15 seconds after heating  
cycles.  
Temperature  
Range  
Dip  
Switch  
Low  
60  
High  
90  
3
4
On  
On  
Off  
Off  
On  
Off  
Off  
On  
63  
90  
66  
90  
69  
90  
Figure 11  
3) Room Freeze Protection – Switch 6  
Factory Dip Switch Conguration  
Units are shipped from the factory with the room freeze protection  
disabled. Room Freeze Protection can be switched on at the  
owner’s preference by moving Dip Switch 6 to ‘ON’. This feature  
will monitor the indoor room conditions and in the event that the  
room falls below 40°F the unit will cycle on high fan with the  
electric heater. This occurs regardless of mode.  
1 2 3 4 5 6 7 8  
O
N
4) Emergency Heat Override – Switch 7  
In the unlikely event of a compressor failure a heat pump unit  
may be switched to operate in only the electric heat mode until  
repairs can be made. Moving Dip Switch 7 to ‘ON’.  
Note: PTAC must be disconnected from power supply  
when making any conguration changes.  
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Digital Control Operation  
Temperature Display  
Figure 12  
The Friedrich digital PTAC is shipped from the factory to display  
the desired room temperature on the LED readout.  
Digital Control Panel  
The unit can be congured to display the room temperature by  
simultaneously pressing the ‘Cool’ and ‘High Fanbuttons  
for three seconds the display will show an ‘  
to acknowledge the change. The unit will display the setpoint  
whenever the ‘Temp’ or buttons are pressed and then  
switch back to room temperature.  
R’ for one seconds  
To revert back to displaying the setpoint only press the ‘Cool’ and  
Low Fanbuttons for three seconds simultaneously, the unit will  
display an ‘ ’ for one seconds to acknowledge the change.  
S
ºF vs. ºC Display  
The unit is factory congured to display all temperatures in  
º
degrees Fahrenheit (  
F
). To switch to degrees Celsius press  
Heat/Cool Models (PDE)  
the ‘Fan Onlyand ‘Low Fan’ buttons simultaneously for three  
After pressing the ‘Heat’ button, adjust the temperature readout to  
the desired room temperature and the unit will cycle the resistance  
heat on and off to maintain a comfortable room. The heater will  
come on anytime that the room temperature is 1.8°F below the  
desired temperature. The fan operation is dependent on the fan  
mode selected, either continuous or cycling. Dip switch 5 controls  
the fan mode, see page 16 for setting.  
seconds. The display will show a ‘  
the change.  
C’ as acknowledgement of  
º
To revert back to F press the ‘Fan Onlyand Low Fanbuttons  
simultaneously for three seconds. The display will show an ‘  
acknowledgement of the change.  
F’ as  
Cooling Mode  
Pressing the ‘Cool’ button while the unit is in any mode, including  
off, will put the unit into cooling mode. Adjust the temperature  
readout to the desired room temperature and the unit will cycle  
the compressor on and off to maintain a comfortable room. The  
compressor will come on anytime that the room temperature  
is 1.8°F above the desired temperature. The fan operation is  
dependent on the fan mode selected, either continuous or cycling.  
See page 16 for fan cycle control.  
Emergency Heat Operation  
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. Dip switch 7  
controls the emergency heat setting, see page 16.  
Fan Mode  
Fan Only  
Heating Mode  
Pressing the ‘Heat’ button while the unit is in any mode, including  
off, will put the unit into heating mode.  
Pressing the ‘Fan Only’ button will run the fan to allow for air  
circulation in the room without operating the compressor or  
heater regardless of the room or set temperature. The fan speed  
selection is made by pressing either the ‘High Fan’ or ‘Low  
Fan’ button.  
Heat Pump Models (PDH)  
When the ‘Heat’ button is pressed initially the unit will energize  
the electric resistance heat to quickly bring the room to the  
set temperature. When the desired room temperature falls  
1.8°F below the desired set temperature the unit will cycle the  
compressor on and operate as a heat pump to maintain the room  
temperature while running more efciently than resistance heat  
only models. If the room temperature should fall more than 5°F  
from the set temperature the unit will run the resistance heater.  
The fan operation is dependent on the fan mode selected, either  
continuous or cycling. Dip switch 5 controls the fan mode, see  
page 16 for setting.  
Cycle/Continuous  
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 used to keep constant  
airow circulation in the room during all times the unit is ‘ON’.  
Fan cycle will conserve energy by only operating the fan while  
the compressor or electric heater is operating. Dip switch 5  
controls the fan mode, see page 16 for setting.  
When the outdoor coil temperature falls below 30°F for more than  
2 minutes the unit will operate the resistance heaters and not the  
compressor. When the outdoor coil temperature reaches 45°F  
the compressor will be allowed to operate again.  
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Remote Thermostat and Low Voltage Control Connections  
Remote Thermostat  
All Friedrich PD model PTAC units are factory congured to be  
controlled by either the chassis mounted Smart Center or a 24V  
single stage remote wall mounted thermostat. The thermostat  
may be auto or manual changeover as long as the control  
conguration matches that of the PTAC unit.  
Note: To revert back to the Smart Center control of the unit replace  
the jumper wire between the ‘GLand ‘GH’ terminals that was  
removed in step 1.  
Thermostat Connections  
C
W
Y
= Common Ground  
= Call for Heating  
= Call for Cooling  
To control the unit with a wall mounted thermostat follow  
the steps below:  
R
= 24V Power from Unit  
1) With the front cover removed locate the low voltage terminal  
strip at the lower portion of the Smart Center.  
GL = Call for Low Fan  
GH = Call for High Fan  
B
= Reversing Valve Energized in heating mode  
(PDH Models Only)  
2) Remove the jumper between the ‘GLand GH’ terminals.  
3) The control is now congured for control by a wall thermo-  
*If only one G terminal is present on thermostat connect to GL  
for low fan or to GH for high fan operation.  
stat. The Smart Center will no longer control the unit.  
4) If desired the accessory escutcheon kit (PDXRT) is to be  
used, install it over the existing control panel.  
Figure 13  
Control board with optional PDXRT escutcheon kit installed  
ON  
DIP  
J P 1  
1
2
3
4
5
6
7
8
R
Y
W
B
GL GH  
C
D1 D2  
F1 F2  
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Desk Control Terminals  
Auxiliary Fan Control  
The Smart Center also has the ability to control a 24VAC relay  
to activate an auxiliary, or transfer, fan. The outputs are listed as  
F1 and F2 on the control board.  
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.  
To connect the relay, simply wire one side of the relay to F1 and  
the other side to F2. Anytime that the PTAC fan runs the terminals  
will send a 24VAC signal to the relay. The relay must be 24 VAC,  
50mA or less.  
For desk control operation connect one side of the switch to the  
D1 terminal and the other to the D2 terminal (See gure 13).  
Whenever the switch closes the unit operation will stop.  
Note: The relay and auxiliary fans must be eld supplied.  
Maximum Wire Length for Desk Control Switch  
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 and may result in property damage, personal  
injury or death. 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 the factory.  
Wire Size  
Maximum Length  
#24  
#22  
#20  
#18  
#16  
400 ft.  
600 ft.  
900 ft.  
1500 ft.  
2000 ft.  
Note: The desk  
control system and  
switches must be  
eld supplied.  
G. Fresh Air Vent Control  
The vent control lever is located behind the front cover on the  
left side of the unit. The unit is shipped in the closed position  
with a locking screw in place. The screw must be removed to  
operate the lever. When the lever is back, (OPEN), outside air  
is mixed with indoor air. When the lever is forward, (CLOSED),  
no outside air is admitted into the room and room air is recycled  
through the unit.  
NOTE: The vent should remain closed for peak operating efciency.  
H. Air Discharge Grille  
Moving parts hazard.  
Turn off electric power before  
servicing this component.  
Failure to do so can result in property  
damage, personal injury and/or death.  
The air discharge grille can be redirected to blow air either straight up or at an angle into the room. To change the airow direction, remove  
the front cover, locate and remove the six grill retaining screws. Reverse the ends of the grille and refasten the grille to the cover.  
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I. Start-up Checklist  
Inspect all components and accessories for  
damage before and after installation.  
Check the unit air lter, condenser coil and  
evaporator coil for any obstructions.  
Check installation for compliance with all national  
and local codes and ordinances.  
Check for proper operation of all components.  
Instruct the owner or operator of the units  
operation, and the manufacturer's  
recommended routine maintenance schedule.  
Read and follow all manufacturer's installation  
instructions.  
NOTE: It is highly recommended that a maintenance  
schedule log book be prepared for recording  
the dates and times of service.  
Check that circuit breaker(s) and electrical wire  
sizes are correct. If the unit is supplied with a  
power supply cord, insure that it is stored properly.  
Operate the unit for twenty minutes. Record  
the unit's indoor/outdoor intake and discharge  
temperatures, amperage draw, and power voltage.  
Check the condensate water drain outlet(s) to  
make sure they are in compliance with all national  
and local codes, that they are adequate for the  
removal of condensate water, and that they meet  
the approval of the end user.  
Assemble the Warranty Certicate, the Operation  
and Installation Manual, all accessory installation  
instructions and the name, address and telephone  
number of the Authorized Friedrich Warranty  
Service Company in the area for the owner or  
operator.  
Strictly follow installation instructions concerning  
clearances around the unit.  
Secure components and accessories, such as the  
control door and front cover.  
NOTE: Units are to be installed, inspected, and checked by qualied service personnel only.  
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Appendix A: Electrical Wiring for 265 Volt Models  
NOTE: It is recommended that the PXSB subbase assembly, the PXCJ conduit kit and the PXDS disconnect switch be installed on all  
hardwired units. If installing a ush-oor mounted unit, make provisions for all the line voltage power leads and conduit to be removed  
for ease of maintenance and service to the chassis.  
To install the line voltage power leads and conduit to the chassis, follow the instructions below.  
1. Remove the four control box retaining screws (A) and open  
the control box.  
5. Make the appropriate electrical connections within the  
control box, then secure the box on the chassis. Detailed  
instructions are included with the installation instructions  
for the conduit kit (PXCJ).  
2. Pull the chassis power lead wires (B) (located on the bottom-  
right side of the control box) through the plastic bushing so  
they are located inside the control box.  
6. Route the line voltage power conduit from the control  
box straight down the right front to the bottom side of the  
chassis. This will allow the front cover to be installed without  
interference with the electrical conduit.  
3. Remove the plastic bushing.  
4. Route the line voltage power leads through the hole where  
the plastic bushing was located, and secure its conduit (use  
a 1/2" straight conduit connector, with the locknut on the  
inside of the control box.)  
Figure 15  
Line Voltage Connections  
Inside back of control  
panel cover.  
Screws  
Screws  
Fuse holder  
ELECTRICSHOCKHAZARD! Turnoffelectricpowerbeforeserviceorinstallation.  
All electrical connections and wiring MUST be installed by a qualied electrician and  
conform to the National Electrical Code and all local codes which have jurisdiction.  
Failure to do so can result in property damage, personal injury and/or death.  
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J. Routine Maintenance  
NOTE: Units are to be inspected and serviced by qualied service personnel only.  
1. Clean the unit air intake lter at least every 300 to 350 hours  
of operation. Clean the lters with a mild detergent in warm  
water and allow to dry thoroughly before reinstalling.  
3. Periodically (at least yearly or bi-yearly): inspect all control  
components, both electrical and mechanical, as well as the  
power supply. Use proper testing instruments (voltmeter,  
ohmmeter, ammeter, wattmeter, etc.) to perform electrical  
tests. Use an air conditioning or refrigeration thermometer  
to check room, outdoor and coil operating temperatures.  
Use a sling psychrometer to measure wet bulb temperatures  
indoors and outdoors.  
2. The indoor coil (evaporator coil), the outdoor coil (condenser  
coil) and base pan should be inspected periodically (yearly  
or bi-yearly) and cleaned of all debris (lint, dirt, leaves, paper,  
etc.). Clean the coils and base pan with a soft brush and  
compressed air or vacuum. If using a pressure washer, be  
careful not to bend the aluminium n pack. Use a sweeping  
up and down motion in the direction of the vertical aluminum  
n pack when pressure cleaning coils. Cover all electrical  
components to protect them from water or spray.  
4. Inspect the surrounding area (inside and outside) to ensure  
that the units' clearances have not been compromised or  
altered.  
5. Inspect the sleeve and drain system periodically (at least  
yearly or bi-yearly) and clean of all obstructions and debris.  
Clean both areas with an antibacterial and antifungal  
cleaner. Rinse both items thoroughly with water and ensure  
that the drain outlets are operating correctly. Check the  
sealant around the sleeve and reseal areas as needed.  
Before reinstalling the chassis in the sleeve, inspect the  
indoor blower housing, blower wheel, condenser fan blade,  
and condenser shroud periodically (yearly or bi-yearly) and  
clean of all debris (lint, dirt, mold, fungus, etc.) Clean the  
blower housing area and blower wheel with an antibacterial  
/ antifungal cleaner. Use a biodegradable cleaning agent  
and degreaser on condenser fan and condenser shroud.  
Use warm or cold water when rinsing these items. Allow  
the unit to dry thoroughly, inspect all gasket material for  
deterioration (replace as necessary), and then reinstall the  
chassis in the sleeve.  
6. Clean the front cover when needed. Use a mild detergent.  
Wash and rinse with warm water. Allow them to dry  
thoroughly before reinstalling them in the chassis.  
NOTE: Do not use a caustic coil cleaning agent on coils  
or base pan. Use a biodegradable cleaning agent and  
degreaser.  
Figure 16  
Components  
Condenser Gasket  
Outdoor Grille  
Condenser Fan Blade  
Condenser Shroud  
Indoor Blower  
Discharge Air Grille  
Indoor Blower  
Housing  
Filters  
Gasket  
Compressor  
Wall Sleeve  
Front Cover  
Basepan  
Innerwall  
Control Panel  
Return Air  
Grille  
Evaporator Coil  
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K. Basic Troubleshooting Techniques  
Being familiar with the sequence of operation on Standard Controlled Operating Units or the operation of the Remote Thermostat  
Controlled Units is important. The following questions and answers may help to identify performance problems.  
Environmental Effects - Cooling Mode  
Environmental Effects - Heating Mode  
Is unit sized to room size area and heat load demand?  
The number of people in the room, number of electrical devices,  
solar gains, etc. are all variable items that can affect proper  
sizing of the unit. Friedrich recommends that you consult with  
an applications engineer for proper sizing.  
Is unit properly sized to room area and heat load demand?  
The number of people in the room, number of electrical devices,  
solar gains, etc. are all variable items that can affect proper  
sizing of the unit. Friedrich recommends that you consult with  
an applications engineer for proper sizing.  
Is the outdoor temperature 60°F or below?  
The unit is designed for outdoor temperatures above 60°F.  
Is the outdoor temperature 70°F or above?  
The unit is designed for outdoor temperatures below 70°F.  
Is the indoor temperature 60°F or below? Ambient indoor  
temperatures of 60°F or below will take a longer period of run  
time to heat the area. Long run times may indicate that the unit  
is undersized.  
Is the indoor temperature 80°F or above?  
Ambient indoor temperatures of 80°F or above will take a longer  
period of run time to cool down the area. Long run times may  
indicate that the unit is undersized.  
Has the room area been increased where the unit is located?  
If the area where the unit is located has been increased, the unit  
may not provide adequate heat.  
Is indoor humidity high?  
This condition will cause the unit to operate longer to remove  
humidity before noticing any cooling effect.  
Insufcient Maintenance and Inspection  
Has the heat load been increased by additional devices such  
as computer equipment, or has the room area been increased  
where the unit is located?  
If conditions have changed, the unit may not be able to cool and  
condition as effectively as previously planned.  
Installation errors are the most common cause of poor performance.  
Please follow installation instructions carefully. If other problems  
exist, see Maintenance and Inspection Troubleshooting Guide  
below.  
Maintenance and Inspection Troubleshooting Guide  
CAUSE  
RESULT  
System is not serviced or inspected  
regularly (semiannually or annually).  
Can result in premature component failures, poor performance and  
increased operating costs.  
Air lters are not cleaned regularly and  
become blocked with particles.  
May result in poor cooling, icing and water problems as well as  
component failures and increased operating costs.  
Condenser coil not maintained  
properly (blocked with particles).  
May result in poor cooling, component failures and increased costs.  
Evaporator coil not maintained properly  
(blocked with particles).  
May result in poor cooling, icing and water problems, and increased  
operating costs.  
Components that show signs of fatigue  
- not replaced.  
May result in multiple service calls, poor performance and  
increased operating costs.  
Condensate drains and drain lines not  
maintained.  
May result in water and odor problems.  
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Digital Control Diagnostics and Test Mode  
Diagnostics  
Test Mode  
The Friedrich Smart Center continuously monitors the PTAC unit  
operation and will store service codes if certain conditions are  
witnessed. In some cases the unit may take action and shut the  
unit off until conditions are corrected.  
For service and diagnostic use only, the built-in timers and  
delays on the PTAC may be bypassed by pressing the ‘Cool’  
and ‘Low Fan’ buttons simultaneously for three seconds while  
in any mode to enter the test mode. TE will be displayed when  
entering test mode, and DE will be displayed when exiting. The  
test mode will automatically be exited 30 minutes after entering it  
or by pressing the ‘Cool’ and ‘Low Fan’ buttons simultaneously  
for three seconds.  
To access the error code menu press the ‘Heat’ and ‘High Fan’  
buttons simultaneously for three seconds. If error codes are  
present they will be displayed. If multiple codes exist you can  
toggle between messages using the temp  
button. To clear  
all codes press the temp button for three seconds while in  
the error code mode. To exit without changing codes press the  
‘Low Fan’ button.  
The chart below lists the possible error codes and their description:  
Error  
Code Translation  
Code  
Action Taken by Unit  
Possible Cause  
NOT USED  
NONE  
01  
• Inadequate power supply  
• Defective breaker  
• Blown fuse  
An extreme low voltage condition  
exists <198V for 230V units and  
<239V for 265V units.  
Shut down unit. Display Error code and ash.  
Once voltage rises to normal level system power  
is restored.  
02  
Return air thermistor sensor open  
or short circuit  
Set return air sensor = 75  
point and error code. Leave unit running.  
°F. Alternate ash set  
• Defective sensor  
• Defective sensor  
03  
04  
Indoor coil thermistor sensor open  
Or short circuit  
Set ID coil temp = 40°F. Alternate ash set point  
and error code. Leave unit running.  
Set OD coil temp = 20°F. Alternate ash set point  
and error code. Automatically change over to  
Electric heat Mode only. Leave unit running.  
Outdoor coil thermistor sensor  
open Or short circuit  
• Defective sensor  
05  
06  
• Dirty coil  
• Fan motor failure  
• Restricted air ow  
If O.D. coil Temperature > 175 Deg  
F for 2 consecutive minutes. (Heat  
Pump models only)  
Alternate ash set point and error code. Shut unit  
down for 5 minutes, then try again 2 times, if fails  
the 3rd time, then shut down unit.  
• Non-condensables in  
refrigeration system  
• Dirty lters  
Alternate ash set point and error code. Continue  
fan operation while the compressor is locked out  
until the indoor coil thermistor reaches 45° F, and  
then energize the compressor. However, com-  
pressor must still wait a lockout time of 180 to 240  
seconds.  
• Dirty coil  
• Fan motor failure  
• Restricted airow  
• Improper refrigerant charge  
• Restriction in refrigerant circuit  
I.D coil temperature <30 Deg F for  
2 consecutive minutes.  
07  
10  
Alternate ash set point and error code. Keep unit  
running.  
Room Freeze Protection triggered  
• Room temperature fell below 40°F  
24  
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920-087-04  
Friedrich PTAC Accessories  
NEW CONSTRUCTION ACCESSORIES  
MODEL NUMBER  
DESCRIPTION  
PHOTO  
WALL SLEEVE Galvanized zinc coated steel is prepared in an 11-  
step process, then powder coated with a polyester nish and cured  
in an oven for exceptional durability. The wall sleeve is insulated for  
sound absorption and thermal efciency.  
PDXWS  
PXGA  
16" High x 42" Wide x 13 ¾" Deep.  
GRILLE Standard, stamped aluminium, anodized to resist chalk-  
ing and oxidation.  
ARCHITECTURAL GRILLES Consist of heavy-gauge 6063-T5  
aluminum alloy:  
PXAA– Clear, extruded aluminum  
PXBG– Beige acrylic enamel  
PXAA  
PXBG  
PXSC  
PXAA  
PXSC– Also available in custom colors.  
CONDENSATE DRAIN KIT Attaches to the bottom of the wall  
sleeve for internal draining of condensate or to the rear wall sleeve  
ange for external draining. Recommended on all units to remove  
excess condensate. Packaged in quantities of ten.  
PXDR10  
PXWE  
DEEP WALL SLEEVE EXTENSION A four-inch deep anodized  
aluminium extension that attaches to the outside of the wall sleeve  
when the wall is greater than 11 inches thick (9 ½" when a subbase  
is used, 10 inches when a lateral duct is used). Up to three exten-  
sions my be used together.  
DECORATIVE SUBBASE Provides unit support for walls less  
than six inches thick. Includes leveling legs, side ller panels and  
mounting brackets for electrical accessories. Accepts circuit breaker,  
power disconnect switch, or conduit kit.  
PXSB  
RT4  
DIGITAL REMOTE WALL THERMOSTAT Single stage thermostat  
used on PTAC units. Hard wired with single speed fan. Direct  
replacement for RT2.  
DIGITAL REMOTE WALL THERMOSTAT Single stage thermostat  
features high/low fan speed switch. Thermostat is hard wired and  
can be battery powered or unit powered. Features backlit display  
and multiple conguration modes. For use on PD-series Friedrich  
PTACs only.  
RT5  
Auto On  
Cool Off Heat  
RT5  
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.  
PDXRT  
25  
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920-087-04  
ADDITIONAL ACCESSORIES  
MODEL NUMBER  
DESCRIPTION  
PHOTO  
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.  
PXSE  
LATERAL DUCT ADAPTER Attaches to the PTAC/PTHP  
unit and provides a transition to direct up to 35% of the total  
CFM to a secondary room, either left or right of the unit. Kit  
includes duct plenum with discharge grille and internal bafe,  
adapter and end cap.  
PDXDA  
PDXDE  
PXCJ  
LATERAL DUCT EXTENSION A three-foot insulated  
plenum that attaches 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.  
CONDUIT KIT WITH JUNCTION BOX Hard wire conduit kit  
with 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.  
POWER CORD RETROFIT Replaces LCDI power cord on  
230V models when unit is used with a subbase. PXPC15 is  
used with 15 amp 2.5 kW units. PXPC20 is used with 20 amp  
3.4 kW units. PXPC30 is used with 30 amp 5.0 kW units.  
PXPC  
15/20/30  
PXPC30  
CHASSIS OPTIONS  
DESIGNATOR  
DESCRIPTION  
STANDARD UNIT Standard PTAC/PTHP chassis. Can be 230/208V or 265V, electric or heat pump.  
S
SEACOAST PROTECTION Additional protection for PTAC/PTHP units in a coastal or corrosive environment.  
The entire outdoor coil is submerged in a specially formulated enamel coating, then oven-cured for a tough,  
corrosion-resistant nish.  
C
26  
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920-087-04  
Friedrich Air Conditioning Company  
P.O. Box 1540  
San Antonio, TX 78295  
210.357.4400  
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. When requesting service: please have  
the model and serial number from your unit readily available.  
Unless specified otherwise herein, the following applies: PACKAGED TERMINAL AIR CONDITIONERS AND HEAT PUMPS  
LIMITED WARRANTY - FIRST YEAR (Eighteen (18) Months from the original date of purchase or twelve (12) months from  
installation). Any defect in the unit’s 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-six (66) months from the date of purchase) ON THE SEALED  
REFRIGERATION SYSTEM. Any part of the sealed refrigeration system on the P-series 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 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.  
Reasonable proof must be presented to establish the original purchase date, 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 inaccessible locations. 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 other than a "Seacoast Protected" unit in a coastal environment. F) Using an  
incorrect power source. G) 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.  
In case of any questions regarding the provisions of this warranty, the English version will govern.  
(12-04)  
27  
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Friedrich Air Conditioning Co.  
Post Office Box 1540 • San Antonio, Texas 78295-1540  
4200 N. Pan Am Expressway • San Antonio, Texas 78218-5212  
(210) 357-4400 • FAX (210) 357-4480  
920-087-04 (10-06)  
Printed in the U.S.A.  
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