ROOM AIR CONDITIONER
SP05A10
SERVICE Manual
AIR CONDITIONER
CONTENTS
11. Precautions
12. Product Specifications
13. Installation and Operating
Instructions
14. Disassembly and Reassembly
15. Troubleshooting
16. Exploded Views and Parts List
17. Block Diagram
18. PCB Diagram
19. Wiring Diagram
10. Schematic Diagram
2.Product Specifications
2-1 Table
Unit of
SP05A10
REMARK
Item
Measure
WINDOW
Type
Dimension:
mm
424×310×326
(Width×Height×Depth)
Volt
-
115
SINGLE
60
Voltage
Phase
Hz
Frequency
A
4.6
Operation Current
Power Consumption
Refrigerant Type
Refrigerant Change
Capacity
W
500
FREON
g
R22
300
BTU/h
BTU/h.W
Kg
5400
10.8
EER
18.5
Net Weight
Row
Type
Row
Type
MODEL
MODEL
-
2×15
Condenser
Propeller Fan
2×10
Condenser Fan
Evaporator
Blower
Evaporator Fan
Fan Motor
YGN50-6K(E)
39A050HS1KA
MRA12145-12008
35/270
Compressor(Rotary)
Overload Protect
Compressor Capacitor
Fan Motor Capacitor
Fan Speed
μF/VAC
μF/VAC
RPM
-
Two Capacitor combined to be the one
with below spec: 35/3.5µF
270VAC
3.5/270
1060/1010/960
THERMISTOR
Thermo Control
FRIEDRICH AIR CONDITIONING CO.
2-1
MEMO
2-3
FRIEDRICH AIR CONDITIONING CO.
2-2 Dimensions
2-2-1 Main Unit
(Unit : mm)
Front view
Side view
424
2-2-2 Remote Control
Remote control
transmission indicator
Mode selection button
(Cool, Fan, Dry)
Operating mode
(
Cool,
Dry,
Fan)
Temperature adjustment
buttons
Temperature setting
Sleep mode
Sleep timer setting button
Energy Saving mode
Fan speed adjustment
button
Fan speed
Energy Saving button
On Timer setting
Timer setting button
Off Timer setting
Timer Set/Cancel button
On/Off button
Battery discharge indicator
2-4
FRIEDRICH AIR CONDITIONING CO.
3. Installation and Operating Instructions
3-1 Installation
3-1-1 Selecting Area for Installation
1. Make sure that you install the unit in an area
providing good ventilation. The air conditioner
must not be blocked by any obstacle affecting the
air flow near the air inlet and air outlet.
6. Make sure that you install the unit in an area
which provides easy drainage for condensed
water.
7. Make sure that you install the unit in an area not
exposed to rain or direct sunlight.
(Install a separate sunblind if exposed to direct
sunlight.)
2. Make sure that you install the unit in an area that
allow good air handling. The installation area
must be able to endure vibration from the unit.
3. Make sure that you install the unit away from
heat or vapor.
8. Make sure that you install the unit in an area
allowing good air movement. Do not install it in
a space that would cause noise amplification of
noise.
4. Make sure that you install the unit in an area
which is cool and has adequate space.
9. Fix the unit firmly if mounted in a high place.
5. Make sure that you install the unit in an area
away from TVs, audio units, cordless phones,
fluorescent lighting fixtures and other electrical
appliances (obtain a clearance of at least one
meter).
Ca u t io n :
Do not use the air conditioner in the following environm ents : greasy areas (including areas near
m achines), or m arine areas. Contact your local dealer for advice.
FRIEDRICH AIR CONDITIONING CO.
3-1
3-2 Function Description
3-2-1 Cooling operation mode
The compressor is turned on and off according to the ambient temperature and set temperature.
1) Compressor on and off control
• Compressor on and off control according to the ambient temperature
The compressor is turned off when "ambient temperature = set temperature
The compressor is turned on when "ambient temperature = set temperature +1˚C"
2) Default value after power reset ➔ set temperature = 75˚F
Fan speed = High
*
*
3) Set temperature indicating (setting) range : 1˚F interval from 64˚F to 86˚F.
3-2-2 Fan operation mode
1) If "Fan operation mode" signal is received from remocon or panel.
➔➔ the compressor is immediately turned off and only fan motor is operated at set blowing speed.
➔➔ it changes such as "High ➔ Med ➔ Low ➔➔High"( if Fan speed is selected).
2) The initial Fan motor speed is set to "High".
3) The set temperature can not be indicated and set.
3-2-3 Energy saver operation mode
If the compressor turn off at the cooling operation, the fan motor turn off after operation during the fixation
*
time only, and operation that energy saver by turn off the fixation time only, and operation that energy saver
by turn off the motor continuously before the condition of the compressor on.
The fan motor is not operated at flow wind operation.
Energy saver operation specification at the cooling operation.
*
*
1) Fan motor control in compressor on : operate with setting wind speed
2) Fan motor control in compressor off : After compressor off, the fan motor is operated breeze for 2 minutes
and then it turn off.
3) After the fan motor off, the compressor and fan motor is operated normally when the compressor on.
3-2
FRIEDRICH AIR CONDITIONING CO.
Installation and Operating Instructions
3-2-4 Sleep operation mode
1) Enable to sleep operation only when cooling operation.
2) First, 7-SEG LED DISPLAY "SLEEP" while 15 second, Second, 7-SEG LED DISPLAY "8Hr"
And, automatically SET OFF after operated while 8 Hour
3) If sleep operation, setting Temperature rise 1˚C after 1 Hour
4) ON TIMER operation, not operation, ENERGY SAVER operation, not sleep operation.
3-2-5 Dry operation mode
If the atmosphere in the room is very humid or damp,use this operation mode. It can remove excess humidity
without lowering the room temperature too much.
1) The quantity of air is adjusted automatically.
3-2-6 LED display indication in case of error detection
7-SEG
LED DISPLAY
ERROR OPERATION
ROOM THERMISTOR
E1 displayed
(OPEN or SHORT)
1) Set operation in case of error occurrence.
• Malfunction of each temperature sensor (open, short)
- Error mode display, warning sound.
- The operation status is off.
FRIEDRICH AIR CONDITIONING CO.
3-3
MEMO
3-4
FRIEDRICH AIR CONDITIONING CO.
4. Disassembly and Reassembly
4-1 Compressor Replacement Flow Chart
Locate cause of defect
Release refrigerant
Disconnect electrical wiring
from compressor
Cut refrigerant lines
from compressor
Plug disconnected lines
Replace compressor
Solder discharge line
Solder suction line
Use nitrogen gas
Inspect electrical
wiring for defects,
and terminals for
correct and secure
connections
Perform soldering function
Y
Problem?
Fill system with
nitrogen gas
N
Check for leakage
Y
Corrective action
Leakage?
Check refrigerant oil level
N
Release nitrogen gas?
Y
N
Low oil level?
Evacuate system
Recharge system
Add oil as necessary
Pinch and braze filling tube
FRIEDRICH AIR CONDITIONING CO.
4-1
4-2 Checking the oil
Fill the transparent container with 10cc of oil, and then conduct the test.
4-2-1 Oil quality
Oil Condition
Condition of
Refrigerant Cycle
Remarks
Color
Odor
No Odor
-
Normal
Straw Yellow
Brown Color
Dark Brown
Return with the system
Change the oil
Over-heated
Compressor Damage
Pungent oil
Change the oil
4-2-2 Replacing and refilling the refrigerant oil
1. Change the compressor - DO NOT recharge the oil as the compressor itself is
already charged.
2. Change the condenser .... add 50cc
3. Change the evaporator .... add 50cc
4. When the refrigerant is replaced .... add 30cc oil.
5. After vacuum is completed, the oil is filled through the high pressure side.
6. In the event of a refrigerant leak, generally it is not necessary to add oil.
(Unless the oil has leaked significantly.)
4-2
FRIEDRICH AIR CONDITIONING CO.
4-3.Disassembly and Reassembly Procedure(SP05A10)
Stop operating the air conditioner, and pull out the power cord before repair.
No.
Part Name
Procedures
Remarks
1.Pull the Grille air inlet and Guard air filter out.
1
Ass’y Grille
2.Remove the screw on the panel front.
3.Hold the lower part of panel with two hands
while pressing down on both sides of the lower
part of the cabinet, pull it forward by about
30mm,and then lift it up carefully for removal.
1.Remove all screws on the both side of the
cabinet .
2
Ass’y Cabinet
2.Take the cabinet upward.
1.Remove the earth screw fixed on the base.
2.Remove 3 screws fixed on the partition.
3.Remove the screw fixed for the power cord.
3
Ass’y Control
4.Un-connect the motor wire and comp lead
wire, then take out the control box upward.
(The picture maybe have a little
different from actual product)
FRIEDRICH AIR CONDITIONING CO.
4-3
Disassembly and Reassembly Procedure(SP05A10)
No.
Part Name
Procedures
Remarks
1.Take the case evap up forward carefully.
(tear all the seal on it before )
4
CASE EVAP
UP & ASSY
EVAP
2.Pull the frame up upward.
1.Remove all screws on the evaporator.
2.Pull the evaporator from frame low carefully.
3.Remove the nut and remove the Blower.
5
Blower
1.Remove 2 screws on the rear side of the
base pan, and all screws fixed on case cond.
6
Case Cond &
Fan Propeller
& Motor Fan
2.Pull up the condenser from the base pan.
3.Remove the nut and remove the Propeller
fan.
4.Remove the screw fixed on the partition and
earth screw fixed on the base pan, then take
out the motor backward.
4-4
FRIEDRICH AIR CONDITIONING CO.
5. Troubleshooting
Check the basic checkpoints first to determine whether it is machine trouble or a problem
in the operation method. When it is not related to the basic checkpoints, perform checking
in accordance with the procedures of troubleshooting by symptom.
5-1 Basic Checkpoints for Troubleshooting
1) Is the voltage of the power source appropriate ?
(1) It should be within the rating voltage ±10% range.
(2) The air conditioner may not operate properly when the voltage is out of this range.
2) Is the connection with the fan motor, compressor wire, and starting condenser
appropriately made ?
3) The symptoms listed in the table below are not indicative of machine trouble.
Symptom
Cause and check
No operation
• Check whether there is power failure or the power plug is pulled out.
• Check whether the unit is stopped as a result of completion
of the sleep time.
• Pull out the power plug for ten seconds, and then insert it again.
Air flows, but
no cooling
• Check whether the Air filter is clogged with dust or is dirty.
• Check whether the desired temperature is too high. Set the desired
temperature to a lower level than the current temperature.
• Check whether it is in "FAN" mode.
The remocon does
not operate
• Check whether battery is completely depleted.
• Check whether the battery is properly inserted.
• Check whether the receiving window of the remocon for the assembly
main PCB is blinded.
• Check whether the remocon is affected by jamming due to a neon sign.
No temperature
setting
• Check whether the unit is in "FAN" mode.
(In "FAN" mode, only the current temperature is displayed, and the
desired temperature is not set.)
❈Checking and Display of Fault Area
ERROR OPERATION
ERROR OPERATION
ROOM THERMISTOR (OPEN OR SHORT)
E1 displayed
FRIEDRICH AIR CONDITIONING CO.
5-1
5-2 Troubleshooting by Symptom
5-2-1 No power
1) Check points
(1) Is the voltage of the power source normal ? (the rating voltage ±10% range.)
(2) Is the electric wire in good contact ?(CN 71, RY 71)
(3) Is the output voltage of the IC01(KA 7812) normal ?(DC 11.5V ~ DC 12.5V)
(4) Is the output voltage of the IC02(KA 7805) normal ?(DC 4.5V ~ DC 5.5V)
Turn off the power, and then turn it on again five
seconds later.
Y
Dose the buzzer sound, when the power on?
Normal operation.
Normal operation.
N
Check whether the "COOLING ICON" LED lamp is
on, and the operation starts when pressing the
ON/OFF button of the remocon.
Y
N
Y
Is the F701(3.15A) fuse blown?
N
Replace the fuse.
N
N
Is the primary voltage of the transformer normal?
(the rating voltage ±10% range.)
Check the power cord and electric wire.
Check and replace the trans.
Y
Is the secondary voltage of the transformer normal?
(AC 13V ~ AC 17V)
Y
N
• Check the BD61 for cold
soldering.
Is the rectifier diode bridge(BD61) normal?
• Replace the rectifier diode
Y
- Is the voltage of DC 17V ~ DC 23V applied at both
ends of the C101 electrolytic condenser?
- Is the voltage of DC 12V applied at both ends of
the C102 electrolytic condenser?
- Is the voltage of DC 5V applied at both ends of
the C103 electrolytic condenser?
• Check both ends of the C101 for
short and cold soldering.
• Check the +12V for a short.
• Check the +5V for a short.
• Check and replace the C101~104.
N
N
Y
• Check the IC01 or IC02 for cold
soldering and a short.
Are the IC01(KA7812) or IC02(KA7805) normal?
• Replace the IC01 or IC02.
Y
Replace the assembly main PCB.
5-2
FRIEDRICH AIR CONDITIONING CO.
Troubleshooting
5-2-2 When the Touch Key pad and Led Display
1) Check points
(1) Is the voltage of the power source normal ? (the rating voltage ±10% range.)
(2) Is the electric wire in good contact ?(CN71, RY71)
(3) Is the connection of the assembly main PCB, and TOUCH KEY PAD in good
contact? (SW01-SW05)
Turn off the power, and then turn it on again
five seconds later.
N
N
When the membrane key is
not operated.
When the LED display is
not operated.
Normal operation
Normal operation
Y
Y
Check the micom
(IC05) for a short,
and replace it.
Is the voltage of the micom
(IC05) No.1, 2, 38~43 port a
square wave?
Check the micom
(IC05) for a short,
and replace it.
Is the voltage of the
micom (IC05) No.13, 14 port
a square wave?
N
N
N
N
N
Y
Y
Is the voltage of the micom
(IC05) No.3, 4, 10, 11, 44
port a square wave?
Check the micom
(IC05) for a short,
and replace it.
Check the micom
(IC05) for a short,
and replace it.
Is the voltage of the micom
(IC05) No.3, 4, 10, 11, 44 port
a square wave?
Y
Y
Check the Q901~
Q905 for a short,
and replace it.
Replace the membrane
key pad.
Is the voltage of the
Q901 ~ Q905 square wave?
Y
Check the IC06
for a short, and
replace it.
Is the voltage of the
IC06 No. 10~16 a square
value?
N
Y
Replace the membrane key pad
FRIEDRICH AIR CONDITIONING CO.
5-3
Troubleshooting
5-2-3 When the remocon is not operated
1) Check points
(1) Is the voltage of the power source normal ? (the rating voltage ±10% range. )
(2) Is the electric wire in good contact ? (CN71, RY71)
(3) Is the assembly main PCB in good contact with the TOUCH KEY PAD(SW01-SW05)
(4) Is the battery voltage of the remocon above DC 2.7V?
Turn off the power, and then turn it on
again five seconds later.
N
Dose the Buzzer sound, when the power on?
Y
Go to the clause "No power".
Check whether the "COOLING ICON" LED lamp is on
and th operation starts when pressing the
on/off button of the remocon.
Y
The remocon is normally operated.
N
N
Is the battery voltage of the remocon above
DC 2.7V?
Replace the battery.
Y
• Check the X-TAL for cold soldering
and a short.
• Replace relevant components.
N
N
Does the X-TAL(RJ 455JB) oscillate normally?
Y
• Check the micom(ICT1) Q1, and
Q2 for cold soldering and a short.
• Replace relevant components.
Is the collector voltage of the remocon Q1, Q2
a square wave?
Y
• Check the R415 components.
• Check the assembly main PCB
micom(IC05).
N
Is the input voltage of the micom(IC05) No.15
pin of the assembly main PCB a aquare wave?
Y
Replace the assembly main PCB.
5-4
FRIEDRICH AIR CONDITIONING CO.
Troubleshooting
5-2-4 When the compressor is not operated
1) Check points
(1) Is the voltage of the power source normal ? (the rating voltage ±10% range. )
(2) Is the desired temperature lower than the indoor temperature in the “COOL” mode?
(Compressor stopped)
(3) Is the starting condenser in good contact?
(4) Is the electric wire in good contact ? (CN71, RY71)
(5) Is the output voltage of the IC01(KA7812) and IC02(KA7805) normal ?
Turn off the power, and then turn it on again five
seconds later.
N
Go to the clause "No power".
Dose the Buzzer sound, when the power on?
Y
N
Y
Check whether the "COOLING ICON" LED lamp is on
and the operation starts when pressing the on/off
button of the remocon.
• Go to the clause "when he remocon
does not operate".
Y
Check whether the compressor is activated in three
minutes after turning on the power with the "CoolING
ICON" LED lamp being switched on when selecting the
cool mode of the remocon.
Normal operation.
N
N
Is the IC03 output normal?
- When the compressor is on, IC03
No. 13 pin → Low.
• Check the IC03 for short and cold
soldering.
• Replace the IC03.
Y
N
N
• Check the relay coil resistance.
(resistance : About 150Ω±20Ω)
• Replace the relay.
Does the relay(RY71) operate normally?
- When the compressor is ON, the RY71 should operate.
Y
• Check the operation of the O.L.P,
and replace it if necessary.
• Check the compressor
Is the compressor normal?
Y
resistance.(0Ω : short, ∞Ω : open)
Replace the compressor.
FRIEDRICH AIR CONDITIONING CO.
5-5
Troubleshooting
5-2-5 When the fan motor does not operated
1) Check points
(1) Is the voltage of the power source normal ? (the rating voltage ±10% range. )
(2) Is the electric wire in good contact ?(CN71, RY71)
(3) Is the starting condenser(FAN MOTOR) in good contact?
(4) Is the fan motor connector in good contact?(CN73)
(5) Is the output voltage of the IC01(KA7812) and IC02(KA7805) normal ?
Turn off the power, and then turn it on again five
seconds later.
N
Go to the clause "No power".
Dose the buzzer sound, when the power on?
Y
Check whether the "COOLING ICON" LED lamp is on
and the operation starts when pressing the
on/off button of the remocon.
N
N
• Go to the clause of "when the
remocon does not operated".
Y
Is the IC03 output normal?
• Check the IC03 for a short and cold
soldering.
• Replace the IC03.
- When the fan motor is High, IC03 No. 12 pin → Low.
- When the fan motor is Med, IC03 NO. 14 pin → LOW.
- When the fan motor is Low, IC03 No. 15 pin →Low.
Y
• Check the relay coil resistance.
(Normal: About 400Ω)
N
N
Does the relay(RY 72, 73,74) operate normally?
- When the fan motor is High, RY74 should operate.
- When the fan motor is Med, RY73 should operate.
- When the fan motor is Low, RY72 should operate.
• Replace the relay.
Y
• Check the fan motor resistance.
(0Ω : short, ∞Ω : open)
• Check the fan motor thermal fuse?
Is the fan motor normal?
Y
Replace the fan motor.
FRIEDRICH AIR CONDITIONING CO.
5-7
6. Exploded View and Parts List
6-1 Main unit
FRIEDRICH AIR CONDITIONING CO.
6-1
Exploded View and Parts List
■Part List
Q'TY
No
1
Description
Code No.
Specification
SP05A10
ASSY PANEL FRONT
DB92-00393B ASSY,TOP,SEA
DB64-00680A HIPS,T2
1
1
4
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
3
3
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1-1 PANEL FRONT
1-2 BLADE V
DB66-00367A HIPS,T2.0
DB66-00368A PP,L82,T1.3
DB64-00681B HIPS,T2
1-3 LINK BLADE
1-4 GRILLE AIR INLET
2
3
4
5
6
7
8
9
CASE CONTROL UP
FILTER
DB61-00933A SGCC-M,T0.7
DB63-00600A HIPS,T2.5
DB96-01972A 2R×10S,FP1.3
EVAPORATOR
ASSY-PLATE EVAP CASING DB90-00898A ASSY
NUT-FRANGE
DB60-30004A 2C M6 SM20C NTR
BLOWER
DB67-00099A ABS,-,OK_TOP-P/J
DB90-00944A 25FO-PS
ASSY-EVAP CASE UP
PLATE-PARTITION
DB70-00219A ABS,-,T2.5
10 INSULATION-TUBE
11 MOTOR
DB72-50178A T30,W36,L34,NBR
DB31-00035K YGN50-6K
12 FAN-PROPELLER
13 NUT-FRANGE
DB67-00014A ABS,290,OK-PJT
DB60-30020A M6,LEFT
14 CASE COND
DB61-00932A
复合PP,T2,W378,L308
15 ASSY-COND
DB96-02044A 2R×15S,FP1.5
DB92-00336A PVC,SC-94445R
DB90-00912A Y-PJT,TOP
DB64-00518A SECC-P,T1,W8
DB92-00337A PVC,SC-94445R
DB62-01349A C1220T-0
16 ASSY SHUTTER-LF
17 ASSY CABINET
18 SHUTTER-ANGLE UP
19 ASSY SHUTTER-RH
20 TUBE DISCHARGE
21 TUBE SUCTION
22 COMPRESSOR
23 NUT-TERMINAL COVER
24 GASKET
DB62-01314A C1220T-0
39A050HS1KA 115V 60Hz 1Ph
DB60-30001A M5,-,SM20C
DB63-20003A EPDM,T0.8
DB63-10026A GE,-,NORYL,-,SEI-701
DB60-30028A M8,ZPC
25 COVER-TERMINAL
26 NUT WASHER
27 GROMMET-ISOLATOR
28 O.L.P
DB73-00016A EPDM,-,BLK,OK-PJT
DB35-00006F
29 ASSY CONTROL BOX
29-1 SWITCH MEMBRANE
29-2 CASE CONTROL-LOW
29-3 CLIP-CAPACITOR
29-4 POWER CORD
29-5 THERMISTOR
29-6 ASSY PCB MAIN
29-7 PANEL CONTROL
29-8 C-OIL
DB93-01357G 5K,ELEC,A
DB34-00019F 76.8*114.5
DB61-00934A Y-PJT,SGCC-M,T0.7
DB65-00031A SGCC-M,T0.45
DB39-00343G 125V,15,AWG18
DB32-10051D 10K/25,-,3425K
SEA 5K TOP,ELECTRONIC
DB93-00874U
DB64-00571A ABS(V5),T2
2501-001290 3.5/35µF,270VAC
AC115V,50/60HZ,DC17V
29-9 TRANSFORMER
30 TUBE CAPILLARY
31 ASSY BASE
DB26-00006G
DB62-01315A C1220T-H
DB90-00897A MSWR10,M8,L10
DB97-90014K OK-P/J
32 ASSY-SCREW
33 ASSY REMOCON
DB93-01433F OK-PJT,ARC-724
6-2
FRIEDRICH AIR CONDITIONING CO.
7. Block Diagram
7-1 Refrigerating Cycle Block Diagram
PINCH PIPE
SUCTION LINE
DISCHARGE LINE
(SERVICE VALVE)
ACCUMULATOR/COMPRESSOR
EVAPORATOR
CONDENSER
CAPILLARY TUBE
PINCH PIPE
(SERVICE VALVE)
7-2 Basic Structure
7-2-1 Micom Control Diagram
MAIN MICOM
A/D converter
Membrane Pad control
(Key operation)
Room Temperature sensor
Receiving Unit of Remocon
• Energe saver
↑, ↓
• Temp.set(
)
• Operation, Mode
• Swing, Sleep
• Fan select, Timer
(Remote Control)
Led display control
(Remocon control)
• Remocon single contro
Operation
l
Dry
Remocon Single
Receiving
Timer
Sleep
Compressor
Fan motor
Fan speed (high)
Fan speed (med)
Fan speed (low)
Fan
• Compressor control
• Buzzer control
• Temperature control
• Fan motor control
Power circuit (DC 5V)
Powercircuit (DC 12V)
Cool
Energy saver
Temp.setting(↑)
Temp.setting(↓)
Down Trans (AC15V)
Power input (AC220V)
Reset Circuit
Oscillation Circuit
FRIEDRICH AIR CONDITIONING CO.
7-1
Block Diagram
7-2-2 Micom pin assignment
KS88C4716
1
2
3
4
5
6
7
8
9
P0.1
P4.4
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P3.7
P3.6
P3.5
P3.4
P3.3
P3.2
P3.1
P3.0
AVss
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
SEG-DATA(c)
SEG-DATA(b)
GRID4
GRID5
P0.0
P4.3
P4.2
VDD
VSS
Xout
Xin
SEG-DATA(d)
SEG-DATA(e)
SEG-DATA(f)
SEG-DATA(g)
SEG-DATA(h)
SEG-DATA(a)
EEPROM CLK
EEPROM IN
EEPROM OUT
BUZZER
GRID3
Vcc
Vss
10MHz RESONATOR
10MHz RESONATOR
TEST
TEST
10 P4.1
11 P4.0
12 RESET
13 P2.0
14 P2.1
15 P2.2
16 P2.3
17 P2.4
18 P2.5
19 P2.6
20 P2.7
21 P4.5
22 AVref
GRID2
GRDI1
RESET IC OUTPUT
KEY-IN1
OPTION
JIG OUTPUT
OPTION
KEY-IN2
REMOCON
EEPROM CS
LOW FAN
SENSOR THERMIS-
TOR(103AT)
OPTION
COMPERSSOR
MIDDLE FAN
HIGH FAN
4-WAY VALVE
Vcc
OPTION
OPTION
OPTION
SAVE OPTION
SWING MOTOR
GND
7-2
FRIEDRICH AIR CONDITIONING CO.
8. PCB DIGRAM
8-1 ASSY MAIN PCB
MAIN PCB:DB93-00874U
Front Side
Back Side
8-1
FRIEDRICH AIRCONDITIONING C0.
PCB PARTS
■Part List DB93-00874U
NO. DESCRIPTION
SPECIFICATION Q'TY
REMARK
1 DIODE BRIDGE
DE06S
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
BD01
VA71
IC04,IC06
IC03
2 VARISTOR
3 IC DRIVE
10D 471
ULN2003AD
KA7533OZ
4 IC
5 IC-VOLT REGU
6 IC-VOLT REGU
7 SCREW TAPPING
8 HEAT SINK
KA7805
IC02
KA7812
IC01
PH3*8
IC01
L15 W15 H25
2200uF 25V
1000uF 35V
100uF 10V
IC01
9 C-AL
C102
C101
C103
C104
CN91
CN11
CN41
CN12
F701
F701
BZ61
R601
RM41
10 C-AL
11 C-AL
12 C-AL
22uF 16V
13 CONNECTOR WAFER
14 CONNECTOR WAFER
15 CONNECTOR WAFER
16 CONNECTOR WAFER
17 FUSE
FCZ254-08SL
VH-4A,WHT
TJC3-2A,RED
TJC3-3A,RED
250V 3015A
HF-004/J
18 FUSE HOLDER
19 BUZZER
PZ-227125
20 R-CARBON
21 REMOCON MODULE
22 JUMPER WIRE
23 JUMPER WIRE
24 JUMPER WIRE
25 PCB-MAIN
620 OHM 1/2W
FRP-4021H6
PH0.6 7.5mm
2012 TYPE
3216 TYPE
FR-1 112*65*1.6mm
180,3216,10%
330,2012,5%
10K,1/8W 1%
6,8K,1/8W 1%
10K,2012,5%
1K,2012,5%
5.4K,1/8W,1%
104Z,2012,50V
223Z,2012,50V
101K,2012,50V
102K,2012,50V
KRA226S
17 JP3~JP10,JP12,JP14~JP18,JP21,JP24,JP25
2
5
1
8
3
1
1
4
2
1
5
3
1
3
3
1
5
1
1
1
1
3
1
1
2
1
1
JP11,JP22
JP1,JP2,JP19,JP20,JP23
-
26 R-CHIP
R90~R908
R402,R701,R703
R404
27 R-CHIP
28 R-METAL
29 R-METAL
R401
30 R-CARBON
31 R-CARBON
32 R-METAL
R301,R403,R501,R502
R201,R202
R406
33 C-CHIP
C105,C106,C401~C403
C201,C501,C502
C701
34 C-CHIP
35 C-CHIP
36 C-CHIP
C702,C901,C902
Q901~Q903
Q904
37 CHIP-TRANSISTOR
38 CHIP-TRANSISTOR
39 DIODE-SWITCHING
40 IC-MCU
KRC246S
1N4148(SMALL)
STM0013-BA
D11U,12VDC
10MHz
D901~D905
IC05
41 RELAY-POWER
42 CERAMIC RESONATOR
43 LED DISPLAY
44 RELAY
RY71
X301
D306GWA/S29
JQ1A12V
LED01
RY72~RY74
RY75
45 RELAY
F3A
46 ASSY HARNESS
47 LED LAMP
EL2-06V
T1~T4
B5054D3,GREEN
4,7K,2012,5%
PH0.6 15mm
LED02,LED03
R405
48 R-CHIP
49 JUMPER WIRE
JP13
8-2
FRIEDRICH AIR CONDITIONING CO.
9. Wiring Diagram
SENSOR
THERMISTOR
CN41
1
1
2
2
LED DISPLAY
LED LAMP
BUZZER
CN12
1
1
3
+5V
3
CN11
1
+12V
REMOCON
MODULE
TRANSFORMER
1
2
3
4
2
3
4
CN91
1
2
3
4
5
6
7
8
F701
250V AC
3.15A
P/GRAY
(LIVE)
MEMBRANE
PAD
P/GRAY
(NEUTRAL)
RY74
T2
RY72 RY73
RY71
T4
RED
T3
GRN
YEL
ORG
COMP-
RESSOR
CAPACITOR
S
C
FAN
MOTOR
R
M1
H
S
M
M
L
W
H
T
W
H
T
B
L
K
O
R
G
Y
E
L
R
E
D
WHT
BLK
W
H
T
RED
WHT
CAPACITOR
BLK
RED
SP05A10
DIAGRAM
FRIEDRICH AIR CONDITIONING CO.
9-1
10 Schematic Diagrams
10-1 MAIN PCB
FRIEDRICH AIR CONDITIONING CO.
Post Office Box 1540 l San Antonio, Texas 78295-1540
4200 N. Pan Am Expressway l San Antonio, Texas 78218-5212
(210) 357-4400 l FAX (210) 357-4480
Printed in China
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