Troubleshooting guide | Friedrich CP08A10 Air Conditioner User Manual

Room Air Conditioner
Service and Parts
Manual
ZQ08B10
ZQ08/10;CP08/10/12 (06/05)
ZQ10B10
CP08A 10
CP10A 10
CP12A 10
CONTENTS
1. PREFACE
3. TROUBLESHOOTING GUIDE
1.1 SAFETY PRECAUTIONS................................2
1.2 INSULATION RESISTANCE TEST .................2
1.3 SPECIFICATIONS...........................................3
1.4 FEATURES......................................................4
1.5 CONTROL LOCATIONS .................................4
2. DISASSEMBLY INSTRUCTIONS
2.1 MECHANICAL PARTS ....................................6
2.1.1 FRONT GRILLE .....................................6
2.1.2 CABINET ................................................6
2.1.3 CONTROL BOX .....................................6
2.2 AIR HANDLING PARTS ..................................7
2.2.1 AIR GUIDE AND TURBO FAN ...............7
2.2.2 FAN ........................................................7
2.2.3 SHROUD ................................................8
2.3 ELECTRICAL PARTS......................................8
2.3.1 OVERLOAD PROTECTOR ....................8
2.3.2 COMPRESSOR......................................8
2.3.3 CAPACITOR...........................................9
2.3.4 POWER CORD ......................................9
2.3.5 MOTOR ................................................10
2.4 REFRIGERATION CYCLE ............................10
2.4.1 CONDENSER.......................................10
2.4.2 EVAPORATOR.....................................10
2.4.3 CAPILLARY TUBE ...............................11
3.1 OUTSIDE DIMENSIONS...............................13
3.2 PIPING SYSTEM...........................................14
3.3 TROUBLESHOOTING GUIDE .....................15
4. SCHEMATIC DIAGRAM.....................19
5. EXPLODED VIEW ..................................20
6. REPLACEMENT PARTS LIST ........21
1. PREFACE
This SERVICE MANUAL provides various service information, including the mechanical and electrical
parts etc. This room air conditioner was manufactured and assembled under a strict quality control system.
The refrigerant is charged at the factory. Be sure to read the safety precautions prior to servicing the unit.
1.1 SAFETY PRECAUTIONS
1.2 INSULATION RESISTANCE TEST
1. When servicing, turn the unit Off and unplug the
power cord.
2. Observe the original lead dress.
If a short circuit is found, replace all parts which have
been overheated or damaged by the short circuit.
3. After servicing, make an insulation resistance test to
prevent the customer from being exposed to shock
hazards.
1. Unplug the power cord and connect a jumper between 2 pins
(black and white).
2. The grounding conductor (green or green and yellow) is to be
.
open.
3. Measure the resistance value with an ohm meter between the
.
jumpered
lead and each exposed metallic part on the equipment at each working status.
4. The value should be over 1 MΩ.
—2—
1.3 SPECIFICATIONS
1.3.1 F OR ZQ08B 10,ZQ10B 10,C P 08A 10,C P 10A 10,C P 12A 10
MODE L S
IT E MS
ZQ08B 10
ZQ10B 10
P OWE R S UP P LY
C P 08A10
C P 10A10
C P 12A10
12,000
1ø, 115V, 60HZ
C OOLING C AP AC IT Y
(B tu/h)
7,800
10,000
7,800
10,000
INP UT
(W)
800
1,020
730
930
1,110
R UNNING C UR R E NT
(A)
7.6
9.2
6.6
8.5
10.2
(B T U/W.h)
9.7
9.8
E .E .R
OP E R AT ING
INDOOR (¡ C )
C ONDIT ION
OUT DOOR (¡ C )
10.8
26.7(DB )* 19.4(WB )**
35(DB )*
520g(18.3oz)
23.9(WB )**
R E F R IG E R ANT (R -22) C HAR G E
300g(10.6oz)
E VAP OR AT OR
2 R OW 11STACKS
3 ROW 11STACKS
2 ROW 10STACKS 3 ROW 12STACKS
C ONDE NS E R
2 R OW 16STACKS
2 ROW 16STACKS(L)
2 ROW 17STACKS 2 ROW 17STACKS(L)
F AN, INDOOR
P R OP E LLE R TYP E FAN WITH S LINGE R R ING
2/3
F AN S P E E DS , F AN/C OOLING
3/3
6 P OLE S
F AN MOT OR
R OTAR Y S WITC H
OP E R AT ION C ONT R OL
R E MOTE C ONTR OLLE R
THE R MOS TAT
R OOM T E MP . C ONT R OL
THE R MIS TOR
V E R T IC AL LOUV E R (R IG HT & LE F T )
AIR DIR E C T ION C ONT R OL
HOR IZONT AL LOUV E R (UP & DOWN)
S LIDE IN-OUT C HAS S IS
C ONS T R UC T ION
C OMP R E S S OR
OV E R LOAD P R OT E C T OR
F AN MOT OR
INT E R NAL T HE R MAL P R OT E C T OR
(3 WIR E WIT H G R OUDING )
P OWE R C OR D
AT T AC HME NT P LUG (C OR D-C ONNE C T E D T Y P E )
DR AIN S Y S T E M
NE T WE IG HT
525g(18.5oz) 510g(18.0oz)
TUR BO FAN
F AN, OUT DOOR
P R OT E C T OR
420g(14.8oz)
DR AIN P IP E OR S P LAS HE D B Y F AN S LING E R
(lbs/kg)
62/28
OUT S IDE DIME NS ION
(inch)
203/32 x 13 29/32 x 193/8
(W x H x D)
(mm)
510 x 354 x 490
* DB :Dry B ulb
**WB :Wet B ulb
—3—
1.4 FEATURES
• Designed for COOLING ONLY.
• Powerful and whispering cooling.
• Slide-in and slide-out chassis for the simple
installation and service.
• Low air-intake, top cooled-air discharge.
• Built-in adjustable Thermistor
• Washable one-touch filter
• Compact size
• Reliable and efficient rotary compressor is equipped.
1.5 CONTROL LOCATIONS
• THERMOSTAT (Fig A)
Thermostat will automatically control the temperature of
the discharge air. For a cooler setting, turn clockwise,
For a warmer setting, turn counter clockwise.
• OPERATION (Fig A)
OFF
: Turns the air conditioner off.
MED FAN
: Medium fan speed without cooling.
5
LOW FAN
MED
FAN
4
HIGH
COOL
: Low fan speed without cooling.
LOW
FAN
3
7
2
8
MED
COOL
1
LOW COOL
HIGH COOL : Cooling with the high fan speed.
MED COOL : Cooling with the medium fan speed.
LOW COOL : Cooling with the low fan speed.
—4—
6
Fig A
9
DIS P L AY
R E MOT E C ONT R OL
2
6
Power
1
Te mp
2
Fan S peed
5
3
5
4
T imer
Mode
4
3
1
Fig C
Fig B
Precaution: The Remote Control unit will not function properly if strong light strikes the sensor window of the air
conditioner or if there are obstacles between the Remote Control unit and the air conditioner.
Refer to Fig B&Fig C
POWER BUTTON
To turn the air conditioner ON. To turn the air conditioner OFF, push the button again.
This button takes priority over any other buttons.
TEMPERATURE SETTING BUTTON
This button can automatically control temperature of the room. The temperature can be set within a range of 60'F to 86'F
by 1'F.
OPERATION MODE SELECTION BUTTON
Every time you push this button, it will shift operation between COOL, ENERGY SAVER, FAN and DRY modes.
- Money Saver: If Money Save mode is selected, the fan stops when the compressor stops cooling.
Approximately every 3 minutes the fan will turn on and check the room air to determine if cooling is needed.
FAN SPEED SELECTOR
Every time you push this button, it will shift fan speeds, as follows.
(Hi ➔ Low ➔ Med ➔ Hi ➔ Low ➔...)
ON/OFF TIMER BUTTON
ON - When the air conditioner is off,it can be set to automatically come on in 1 to12 hours from its previous setting.
Each touch will increase the timer by 1 hour.
OFF - When the air conditioner is on, it can be set to automatically turn off in 1 to 12 hours. Each touch will increase
the timer by 1 hour. After the timer has been on for 30min, the temperature will automatically rise 2F, and after another
another 30min, it will rise 2F again. The temperature will stay the same until the timer goes off.
To cancel the timer, press the timer pad until the display time disappears.
—5—
2. DISASSEMBLY INSTRUCTIONS
— Before the following disassembly, set POWER SWITCH to OFF and disconnect the power cord.
2.1 MECHANICAL PARTS
2.1.1 FRONT GRILLE
1. Open the lnlet grille downward and remove the air
filter.
2. Remove the screw which fastens the front
grille.(See Figure 1)
3. Pull the front grille from the right side.
4. Remove the front grille.(There are 4 hooks.)
5. Re-install the components by referring to the
removal procedure, above.
ER
POW
P
TEM
DE
MO
FAN
ED
E SPE
TIM
2.1.2 CABINET
1. After disassembling the FRONT GRILLE, remove
the 2 screws which fasten the cabinet at both
sides.
2. Remove the 2 screws which fasten the cabinet at
back.
3. Pull the base pan forward. (See Figure 2)
4. Remove the cabinet.
5. Re-install the components by referring to the
removal procedure, above.
Figure 1
2.1.3 CONTROL BOX
COO
L
FAN
DRY
FAN
INDO
HEA
T
OR
DEF
ROS
T
DES
ENE
SAVRGY
ER
PURAIR
YFIE
AUT R
RES
O
TAR
IRED
1. Remove the front grille. (Refer to section 2.1.1)
2. Remove the cabinet. (Refer to section 2.1.2)
3. Remove the 2 screws which fasten the power
cord.
Figure 2
4. Disconnect the grounding screw from the
evaporator channel.
5. Remove the 1 screw which fastens the control box
cover.
6. Remove the housing which connects PCB(CP 08/10/12)
or connector(ZQ 08/10) and motor wire in the control box.
7. Remove the nut which fastens the terminal cover.
8. Remove the terminal cover.
9. Remove all the leads from the overload protector.
10. Discharge the capacitor by placing a 20,000
ohm resistor across the capacitor terminals.
11. Raise the control box upward completely.
(See Figure 3)
12. Re-install the components by referring to the
removal procedure, above.
(Refer to the circuit diagram found on page 27 in
this manual and on the control box.)
Figure 3
—6—
T
TIM
E
FAN
SPE
ED
MO
DE
TEM
P
POW
ER
COO
L
FAN
DRY
FAN
INDO
HEA
T
DEF
ROS
OR
T
DES
IRED
TIM
E
ENE
SAVRGY
ER
PURAIR
YFIE
AUT R
RES
O
TAR
T
FAN
SPE
ED
MO
DE
TEM
P
POW
ER
2.2 AIR HANDLING PARTS
2.2.1 AIR GUIDE AND TURBO FAN
1. Remove the front grille. (Refer to section 2.1.1)
2. Remove the cabinet. (Refer to section 2.1.2)
3. Remove the control box. (Refer to section 2.1.3)
4. Remove the 4 screws which fasten the brace.
5. Remove the brace.
6. Remove the 2 screws which fasten the air guide
upper.
7. Remove the air guide upper.(See figure 4)
8. Remove the 2 screws which fasten the evaporator.
9. Move the evaporator forward pulling it upward
slightly. (See Figure 5)
10. Pull the hook out of orifice by pushing the tabs
and remove it. (See Figure 6)
11. Using pliers remove the clamp
secures the turbo fan.
12. Remove the turbo fan.
13. Remove the 2 screws which fasten the air guide
to the base pan.
14. Move the air guide backward, and pull out from
the base pan.(Move the air guide lower carefully.)
15. Re-install the components by referring to the
removal procedure, above.
Figure 4
Figure 5
2.2.2 FAN
1. Remove the cabinet. (Refer to section 2.1.2)
2. Remove the brace (Refer to section 2.2.1)
3. Remove the 5 screws which fasten the condenser.
4. Move the condenser to the left carefully.
5. Remove the clamp which secures the fan.
6. Remove the fan. (See Figure 7)
7. Re-install by referring to the removal procedure.
Figure 6
Figure 7
—7—
2.2.3 SHROUD
1. Remove the fan. (Refer to section 2.2.2)
2. Remove the shroud. (See Figure 8)
3. Re-install the components by referring to the
removal procedure, above.
Figure 8
2.3 ELECTRICAL PARTS
2.3.1 OVERLOAD PROTECTOR
1. Remove the cabinet. (Refer to section 2.1.2)
2. Remove the nut which fastens the terminal cover.
3. Remove the terminal cover. (See Figure 9)
4. Remove all the leads from the overload protector.
5. Remove the overload protector.
6. Re-install the components by referring to the
removal procedure, above.
Figure 9
2.3.2 COMPRESSOR
1. Remove the cabinet. (Refer to section 2.1.2)
2. Discharge the refrigerant system using a FreonTM
Recovery System.
If there is no valve to attach the recovery system to,
install one (such as a WATCO A-1) before venting
the FreonTM. Remove the valve when finished
3. Remove the overload protector. (Refer to section
2.3.1)
4. After purging the unit completely, unbraze the
suction and discharge tubes at the compressor
connections.
5. Remove the 3 nuts and the 3 washers which
fasten the compressor.
6. Remove the compressor. (See Figure 10)
7. Re-install the components by referring to the
removal procedure, above.
Figure 10
—8—
2.3.3 CAPACITOR
1. Remove the control box. (Refer to section 2.1.3)
2. Open the top cover from the control box.
(See Figure 11)
3. Pull out the capacitor from the control box.
4. Disconnect all the leads of capacitor terminals.
5. Re-install the components by referring to the
removal procedure, above.
CO
OL
FA
N
IN
DO
OR
DR
Y
FA
N
HE
AT
DES
IR
ED
DEF
RO
ST
EN
ER
SA G
VE Y
R
PU AIR
RY
FI
AU ER
RES TO
TA
RT
Figure 11
2.3.4 POWER CORD
1. Remove the control box. (Refer to section 2.1.3)
2. Open the top cover from the control box.
(Refer to section 2.3.3)
3. Disconnect the front panel from the control box.
(See Figure 12)
4. Disconnect the 2 receptacles and remove the
grounding screw.
5. Pull out the power cord.
6. Re-install the component by referring to the
removal procedure, above.
(Use only one ground-marked hole for ground
connection.)
7. If the supply cord of this appliance is damaged, it
must be replaced by the factory specifiled cord.
CO
OL
FAN
DRY
IND
OOR
FA
HEA
T
N
DEF
ROS
T
DES
IRE
D
TIM
E
ENE
SAVRGY
ER
PURAIR
YFIE
AUT R
RES
O
TAR
T
FAN
SPE
ED
MO
DE
TEM
P
PO
WE
R
Figure 12
—9—
2.3.5 MOTOR
1. Remove the cabinet. (Refer to section 2.1.2)
2. Remove the turbo fan. (Refer to section 2.2.1)
3. Remove the fan. (Refer to section 2.2.2)
4. Remove the 4 screws which fasten the motor to
the air guide. (See Figure 13)
5. Remove the motor.
6. Re-install the components by referring to the
removal procedure, above.(See Figure 13)
2.4 REFRIGERATING CYCLE
2.4.1 CONDENSER
CAUTION
Figure 13
Discharge the refrigerant system using a
FreonTM Recovery System.
If there is no valve to attach the recovery
system, install one (such as a WATCO A-1)
before venting the FreonTM. Remove the valve
when finished.
1. Remove the cabinet. (Refer to section 2.1.2)
2. Remove the 5 screws which fasten the
brace.(Refer to section 2.2.1)
3. Remove the 5 screws which fasten the condenser
and shroud.
4. After discharging the refrigerant completely,
unbraze the interconnecting tube at the condenser
connections.
5. Remove the condenser.
6. Re-install the components by referring to notes.
(See Figure 14)
2.4.2 EVAPORATOR
Figure 14
1. Remove the control box.(Refer to section 2.1.3)
2. Remove the air guide upper. (Refer to section
2.2.1)
3. Remove the 2 screws which fasten the evaporator.
4. Move the evaporator sideways carefully.
(Refer to section 2.2.1)
5. After discharging the refrigerant completely,
unbraze the interconnecting tube at the evaporator
connections.
6. Remove the evaporator.
7. Re-install the components by referring to notes.
(See Figure 15)
Figure 15
—10—
2.4.3 CAPILLARY TUBE
3. Remove the capillary tube.
4. Re-install the components by referring to notes.
1. Remove the cabinet. (Refer to section 2.1.2)
2. After discharging the refrigerant completely,
unbraze the interconnecting tube at the capillary
tube.(See caution on previous page)
NOTES
— Replacement of the refrigeration cycle.
1. When replacing the refrigeration cycle, be sure to
Discharge the refrigerant system using a FreonTM
recovery System.
If there is no valve to attach the recovery system,
install one (such as a WATCO A-1) before venting
the FreonTM. Remove the valve when finished.
2. After discharging the unit completely, remove the
desired component, and unbraze the pinch-off
tubes.
3. Solder service valves into the pinch-off tube ports,
leaving the valves open.
4. Solder the pinch-off tubes with Service valves.
5. Evacuate as follows.
1) Connect the vacuum pump, as illustrated figure
16A.
2) Start the vacuum pump, slowly open manifold
valves A and B with two full turns
counterclockwise and leave the valves open.
The vacuum pump is now pulling through valves
A and B up to valve C by means of the manifold
and entire system.
CAUTION
If high vacuum equipment is used, just crack
valves A and B for a few minutes, then open
slowly with the two full turns counterclockwise.
This will keep oil from foaming and being
drawn into the vacuum pump.
3) Operate the vacuum pump for 20 to 30 minutes,
until 600 microns of vacuum is obtained. Close
valves A and B, and observe vacuum gauge for
a few minutes. A rise in pressure would
indicate a possible leak or moisture remaining in
the system. With valves A and B closed, stop
the vacuum pump.
4) Remove the hose from the vacuum pump and
place it on the charging cylinder. See figure
16B.
Open valve C.
Discharge the line at the manifold connection.
5) The system is now ready for final charging.
6. Recharge as follows :
1) Refrigeration cycle systems are charged from
the High-side. If the total charge cannot be put
in the High-side, the balance will be put in the
suction line through the access valve which you
installed as the system was opened.
2) Connect the charging cylinder as shown in figure
16B.
With valve C open, discharge the hose at the
manifold connection.
3) Open valve A and allow the proper charge to
enter the system. Valve B is still closed.
4) If more charge is required, the high-side will not
take it. Close valve A.
5) With the unit running, open valve B and add the
balance of the charge.
a. Do not add the liquid refrigerant to the Lowside.
b. Watch the Low-side gauge; allow pressure to
rise to 30 lbs.
c. Turn off valve B and allow pressure to drop.
d. Repeat steps b. and c. until the balance of the
charge is in the system.
6) When satisfied the unit is operating correctly,
use the pinch-off tool with the unit still running
and clamp on to the pinch-off tube. Using a tube
cutter, cut the pinch-off tube about 2 inches from
the pinch-off tool. Use sil-fos solder and solder
pinch-off tube closed. Turn off the unit, allow it to
set for a while, and then test the leakage of the
pinch-off connection.
—11—
Equipment needed: Vacuum pump, Charging cylinder, Manifold gauge, Brazing equipment. Pinch-off tool capable
of making a vapor-proof seal, Leak detector, Tubing cutter, Hand Tools to remove components, Service valve.
COMPOUND GAUGE
CONDENSER
(HIGH PRESSURE SIDE)
MANIFOLD
GAUGE
A
B
CAPILLARY TUBE
SEE INSETS
BELOW
EVAPORATOR
(LOW PRESSURE SIDE)
COMPRESSOR
LOW
HI
A
B
B
A
EXTERNAL
VACUUM PUMP
CHARGING
CYLINDER
C
Figure 16B-Charging
Figure 16A-Pulling Vacuum
—12—
3. TROUBLESHOOTING GUIDE
3.1 OUTSIDE DIMENSIONS
unit: mm(inch)
MODEL: ZQ08B10,CP08A10,ZQ10B10
490(19 3/8" )
29(1 5 /32")
126.5(431/32")
510 20 3 32
COOL FAN DRY HEAT DEFROST
FAN
INDOOR
DESIRED
ENERGY
SAVER
AIR
PURYFIER
AUTO
RESTART
29
354(13 /32")
18(23/32")
MODEL:CP10A10,CP12A10
567(22 1/16")
29(1 5 /32")
111(4 3/ 8" )
600 23 5
8
COOL FAN DRY HEAT DEFROST
FAN
INDOOR
DESIRED
ENERGY
SAVER
AIR
PURYFIER
AUTO
RESTART
31
380(14 /32")
18(23/32")
—13—
3.2 PIPING SYSTEM
CONDENSER COIL
FAN
CAPILLARY TUBE
MOTOR
COMPRESSOR
TURBO FAN
EVAPORATOR COIL
Figure 17 is a brief description of the important components and their function in what is called the refrigeration
system. This will help you to understand the refrigeration cycle and the flow of the refrigerant in the cooling cycle.
ROOM AIR CONITIONER
CYCLE OF REFRIGERATION
EVAPORATOR COILS
CONDENSER COILS
COMPLETE LIQUID
BOIL OFF POINT
COOLED
AIR
SUCTION LINE
COOL LOW PRESSURE VAPOR
VAPOR INLET
HOT
DISCHARGED
AIR
ROOM AIR HEAT LOAD
MOTOR
OUTSIDE COOLING
AIR FOR REFRIGERANT
PASS THROUGH
COMPRESSOR
OIL
LIQUID
PRESSURE
DROP
LIQUID OUTLET
(LIQUID REFRIGERANT)
HIGH PRESSURE VAPOR
LIQUID REFRIGERANT
CAPILLARY TUBE
Figure 17
—14—
LOW PRESSURE VAPOR
3.3 TROUBLESHOOTING GUIDE
In general, possible trouble is classified in two kinds.
The one is called Starting Failure which is caused from an electrical defect, and the other is ineffective Air
Conditioning caused by a defect in the refrigeration circuit and improper application.
Unit runs but poor cooling.
Ineffective Cooling
Check cold air circulation
for smooth flow.
Dirty indoor coil
(Heat exchanger)
Check outdoor coil
(heat exchanger) & the fan
operation.
Check heat load
increase.
Clean condenser.
Check gas leakage.
Not on separate circuit.
Malfunction of fan
Clogged air filter.
Repair gas leak.
Replacement of unit if the
unit is beyond repair.
Obstruction at air outlet
Check inside gas
pressure.
Adjusting of refrigerant
charged.
Correct above problem.
Malfunction of compressor.
Check clogging in refrigeration circuit.
Repair clogging in refrigeration circuit.
Replacement of
compressor.
Satisfactory operation with
temperature difference of
inlet & outlet air ;
18~26°F.
—15—
Fails to Start
Check power source.
Check circuit breaker
and fuse.
Check control switch
setting.
Gas leakage of feeler bulb
of thermostat
Check control switch.
Compressor only fails to
start.
Fan only fails to start.
Improper wiring.
Drop of power voltage.
Improper thermostat setting.
Defect of fan motor
capacitor.
Defect of compressor
capacitor.
Loose terminal connection.
Capacitor check.
Irregular motor resistance
( ).
Irregular motor insulation
( ).
Improper wiring.
Replacement
Replacement of fan motor.
Irregular motor resistance (
)
Irregular motor insulation (
)
Regular but fails to start.
Replacement of compressor
(locking of rotor, metal).
Replacement of compressor
(Motor damaged)
—16—
COMPLAINT
Fan motor will not run.
CAUSE
REMEDY
No power
Check voltage at outlet. Correct if none.
Power supply cord
Check voltage to rotary switch. If none, check power
supply cord. Replace cord if circuit is open.
Rotary switch
Check switch continuity. Refer to wiring diagram for
terminal identification. Replace switch if defective.
Wire disconnected or
connection loose
Connect wire. Refer to wiring diagram for terminal
identification. Repair or replace loose terminal.
Capacitor (Discharge
capacitor before testing.)
Test capacitor.
Replace if not within ±10% of manufacturer's rating.
Replace if shorted, open, or damaged.
Will not rotate
Fan blade hitting shroud or blower wheel hitting
scroll. Realign assembly.
Units using slinger ring for condenser fan must have
1
/4 to 5/16 inch clearance to the base. If it hits the
base, shim up the bottom of the fan motor with
mounting screw(s).
Check fan motor bearings; if motor shaft will not
rotate, replace the motor.
Fan motor runs
intermittently
Revolves on overload.
Check voltage. If not within limits, call an electrician.
Test capacitor.
Check bearings. Does the fan blade rotate freely?
If not, replace fan motor.
Pay attention to any change from high speed to
low speed. If the speed does not change, replace the
motor.
Fan motor noise.
Compressor will not run,
but fan motor runs.
Fan
If cracked, out of balance, or partially missing,
replace it.
Blower
If cracked, out of balance, or partially missing,
replace it.
Loose clamper
Tighten it.
Worn bearings
If knocking sounds continue when running or loose,
replace the motor. If the motor hums or noise
appears to be internal while running, replace motor.
Voltage
Check voltage.
If not within limits, call an electrician.
Wiring
Check the wire connections, if loose, repair or
replace the terminal. If wires are off, refer to wiring
diagram for identification, and replace. Check wire
locations. If not per wiring diagram, correct.
Rotary
Check for continuity, refer to the wiring diagram for
terminal identification. Replace the switch if circuit is
open.
—17—
COMPLAINT
Compressor will not run,
but fan motor runs.
Compressor cycles on
overload.
Compressor cycles on
overload.
Compressor cycles on
overload.
Insufficient cooling or
heating
Excessive noise
CAUSE
REMEDY
Thermostat
Check the position of knob. If not at the coldest
setting, advance the knob to this setting and restart
unit.
Check continuity of the thermostat. Replace
thermostat if circuit is open.
Capacitor (Discharge
capacitor before servicing.)
Check the capacitor.
Replace if not within ±10% of manufacturers rating.
Replace if shorted, open, or damaged.
Compressor
Check the compressor for open circuit or ground. If
open or grounded, replace the compressor.
Overload
Check the compressor overload, if externally
mounted. Replace if open. (If the compressor
temperature is high, remove the overload, cool it,
and retest.)
Voltage
Check the voltage.
If not within limits, call an electrician.
Overload
Check overload, if externally mounted.
Replace if open. (If the compressor temperature is
high, remove the overload, cool, and retest.)
Fan motor
If not running, determine the cause. Replace if
required.
Condenser air flow
restriction
Remove the cabinet. inspect the interior surface of
the condenser; if restricted, clean carefully with a
vacuum cleaner (do not damage fins) or brush.
Clean the interior base before reassembling.
Condenser fins (damaged)
If condenser fins are closed over a large area on the
coil surface, head pressures will increase, causing
the compressor to overload. Straighten the fins or
replace the coil.
Capacitor
Test capacitor.
Wiring
Check the terminals. If loose, repair or replace.
Refrigerating system
Check the system for a restriction.
Air filter
If restricted, clean of replace.
Exhaust damper door
Close if open.
Unit undersized
Determine if the unit is properly sized for the area to
be cooled.
Blower or fan
Check the set screw or clamp. If loose or missing,
correct. If the blower or fan is hitting air guide,
rearrange the air handling parts.
Copper tubing
Remove the cabinet carefully and rearrange tubing
not to contact cabinet, compressor, shroud, and
barrier.
—18—
4. SCHEMATIC DIAGRAM
MODEL: CP08A10, CP10A10, CP12A10
1
POWER INPUT
BK(BR)
WH(BL)
(Plain)
(Ribbed)
CN-AC/DC
CAPACITOR
RY-HI
5
RY-MED
MOTOR
CN-AC/DC
CN-MOTOR
BK
BL
RD
YL
OR
RY-LOW
GN/YL
(GN)
MODEL: ZQ08B10,ZQ10B10
7
9
CN-TH1
YL
C
BK
CN-PWR
GN/YL
(GN)
3
BK
BL
BL
R
CAPACITOR
YL
F
OR(BR)
C
3
BL
R
COMP.
S
BR(YL)
BK
BK
RD
RD
BL
BL
OLP
THERMOSTAT
3
COMP.
2
H
BK
RD
RY-COMP
4
1
MOTOR
OR(BR)
C
P.T.C
S
AC PCB
ASSEMBLY
BL
C
4
BK
4 M
YL
FUSE
250V/T2A
(115V/T2A)
BK(BR)
(Plain)
6 H
6
ZNR01J
WH(BL)
(Ribbed)
RD
THERMISTOR
RD
H
RD
7
POWER
TRANS
OR(BR)
8 L
2
1
F
2
GN(GN/YL)
ROTARY SWITCH
DC PCB
ASSEMBLY
OLP
WIRING DIAGRAM
WIRING DIAGRAM
3854AR3563N
3854AR3563A
8
4
S: Service Parts
N: Non Service Parts
LOCATION
NO.
DESCRIPTION
Q'TY
PER SET
REMARKS
1
MOTOR ASSY
1
S
2
CAPACITOR
1
S
3
COMPRESSOR
1
S
4
OVERLOAD PROTECTOR
1
S
5
DC PCB ASSEMBLY
1
S
6
AC PCB ASSEMBLY
1
S
7
THERMISTOR
1
S
8
THERMOSTAT
1
S
9
ROTARY SWITCH
1
S
—19—
5. EXPLODED VIEW
731373
554031
149980
554030
148000
130910
W48602
346811
559011
359012
W48602
267110
352390-2
354210
249950
263230
352390-1
268712
268714
135500
W0CZZ
238310
349001
349480
130410
264110
237200
567502
554160
135312
147582-2
249950
550140
147581
269310
552111
266003
352115
135500
147582-1
W0CZZ
152302
352113
264110
135313
149410
—20—
35211A
352113
6. REPLACEMENT PARTS LIST
ZQ08B10
ZQ10B10
CP08A 10
CP10A 10
CP12A 10
ZQ08B10
Loc No FRIEDRICH
Description
130410
67302924
BASE ASSEMBLY,SINGLE
130910
67303711
CABINET ASSEMBLY,SINGLE
135312
67306014
GRILLE ASSEMBLY,FRONT(SINGLE)
135313
67306109
GRILLE,INLET
135500
67300311
COVER
147581
67306207
LOUVER,HORIZONTAL
147582-1
67306260
LOUVER,VERTICAL
147582-2
67306261
LOUVER,VERTICAL
148000
67303909
BRACE
149410
67304105
KNOB ASSEMBLY
149980
67303114
SHROUD
152302
67304306
FILTER ASSEMBLY,AIR CLEANER
237200
67305509
PANEL ASSEMBLY,CONTROL
264110
67300017
POWER CORD ASSEMBLY
266003
67300501
SWITCH,ROTARY
269310
67300402
THERMOSTAT ASSEMBLY
346811
67303031
MOTOR ASSEMBLY,SINGLE
349001
67303507
DAMPER,VENTILATION
349480
67303408
ORIFICE
352390-1
67302718
AIR GUIDE ASSEMBLY
352390-2
67302731
AIR GUIDE ASSEMBLY
354210
67302427
EVAPORATOR ASSEMBLY,FIRST
359012
67302611
FAN,TURBO
550140
67301901
ISOLATOR,COMP
552111
67302124
TUBE ASSEMBLY,CAPILLARY
554030
67303324
CONDENSER ASSEMBLY,FIRST
554160
67500121
COMPRESSOR SET,CHINA
559011
67303201
FAN ASSEMBLY,AXIAL
567502
67301417
O.L.P
731373
67306309
INSTALL PART ASSEMBLY,SINGLE
W0CZZ
67300718
CAPACITOR,DRAWING
W48602
67302500
CLAMP,SPRING
—21—
R: Service Parts
N: Non Service Parts
ZQ10B10
Loc No FRIEDRICH
Description
130410
67302913
BASE ASSEMBLY,SINGLE
130910
67303711
CABINET ASSEMBLY,SINGLE
135312
67306014
GRILLE ASSEMBLY,FRONT(SINGLE)
135313
67306109
GRILLE,INLET
135500
67300311
COVER
147581
67306207
LOUVER,HORIZONTAL
147582-1
67306260
LOUVER,VERTICAL
147582-2
67306261
LOUVER,VERTICAL
148000
67303909
BRACE
149410
67304105
KNOB ASSEMBLY
149980
67303110
SHROUD
152302
67304306
FILTER ASSEMBLY,AIR CLEANER
237200
67305509
PANEL ASSEMBLY,CONTROL
249950
67305322
CONTROL BOX ASSEMBLY,SINGLE
264110
67300019
POWER CORD ASSEMBLY
266003
67300501
SWITCH,ROTARY
269310
67300402
THERMOSTAT ASSEMBLY
346811
67303032
MOTOR ASSEMBLY,SINGLE
349001
67303507
DAMPER,VENTILATION
349480
67303408
ORIFICE
352113
67302309
TUBE ASSEMBLY,DISCHARGE SINGLE
352115
67302019
TUBE ASSEMBLY,EVAPORATOR IN
35211A
67302220
TUBE ASSEMBLY,SUCTION SINGLE
352390-1
67302718
AIR GUIDE ASSEMBLY
352390-2
67302731
AIR GUIDE ASSEMBLY
354210
67302428
EVAPORATOR ASSEMBLY,FIRST
359012
67302611
FAN,TURBO
550140
67301901
ISOLATOR,COMP
552111
67302125
TUBE ASSEMBLY,CAPILLARY
554031
67303315
CONDENSER ASSEMBLY,BENT
554160
67500122
COMPRESSOR SET,CHINA
559011
67303201
FAN ASSEMBLY,AXIAL
567502
67301409
O.L.P
731373
67306309
INSTALL PART ASSEMBLY,SINGLE
W0CZZ
67300716
CAPACITOR,DRAWING
W48602
67302500
CLAMP,SPRING
—22—
CP08A10
Loc No FRIEDRICH
Description
130410
67302913
BASE ASSEMBLY,SINGLE
130910
67303711
CABINET ASSEMBLY,SINGLE
135312
67306014
GRILLE ASSEMBLY,FRONT(SINGLE)
135313
67306109
GRILLE,INLET
135500
67300310
COVER
147581
67306207
LOUVER,HORIZONTAL
147582-1
67306260
LOUVER,VERTICAL
147582-2
67306261
LOUVER,VERTICAL
148000
67303909
BRACE
149980
67303110
SHROUD
152302
67304306
FILTER ASSEMBLY,AIR CLEANER
237200
67305508
PANEL,CONTROL
238310
67500116
ESCUTCHEON
263230
67307807
THERMISTOR ASSEMBLY
264110
67300017
POWER CORD ASSEMBLY
267110
67307701
REMOTE CONTROLLER ASSEMBLY
268712
67307614
PWB(PCB) ASSEMBLY,MAIN(DC)
268714
67307613
PWB(PCB) ASSEMBLY,MAIN(AC)
346811
67303018
MOTOR ASSEMBLY,SINGLE
349001
67303507
DAMPER,VENTILATION
349480
67303408
ORIFICE
352390-1
67302718
AIR GUIDE ASSEMBLY
352390-2
67302731
AIR GUIDE ASSEMBLY
354210
67302426
EVAPORATOR ASSEMBLY,FIRST
359012
67302611
FAN,TURBO
550140
67301901
ISOLATOR,COMP
552111
67302123
TUBE ASSEMBLY,CAPILLARY
554031
67303315
CONDENSER ASSEMBLY,BENT
554160
67500120
COMPRESSOR SET,CHINA
559011
67303201
FAN ASSEMBLY,AXIAL
567502
67301406
O.L.P
731373
67306309
INSTALL PART ASSEMBLY,SINGLE
W0CZZ
67300718
CAPACITOR,DRAWING
W48602
67302500
CLAMP,SPRING
—23—
CP10A10
Loc No FRIEDRICH
Description
130410
67302923
BASE ASSEMBLY,SINGLE
130910
67303710
CABINET ASSEMBLY,SINGLE
135312
67306013
GRILLE ASSEMBLY,FRONT(SINGLE)
135313
67306108
GRILLE,INLET
135500
67300310
COVER
147581
67306206
LOUVER,HORIZONTAL
147582-1
67306258
LOUVER,VERTICAL
147582-2
67306259
LOUVER,VERTICAL
148000
67303908
BRACE
149980
67303113
SHROUD
152302
67304307
FILTER ASSEMBLY,AIR CLEANER
237200
67305508
PANEL,CONTROL
238310
67500116
ESCUTCHEON
263230
67307807
THERMISTOR ASSEMBLY
264110
67300019
POWER CORD ASSEMBLY
267110
67307701
REMOTE CONTROLLER ASSEMBLY
268712
67307613
PWB(PCB) ASSEMBLY,MAIN(AC)
268714
67307614
PWB(PCB) ASSEMBLY,MAIN(DC)
346811
67303030
MOTOR ASSEMBLY,SINGLE
349001
67303506
DAMPER,VENTILATION
349480
67303411
ORIFICE
352390-1
67302729
AIR GUIDE ASSEMBLY
352390-2
67302730
AIR GUIDE
354210
67302425
EVAPORATOR ASSEMBLY,FIRST
359012
67302615
FAN,TURBO
550140
67301901
ISOLATOR,COMP
552111
67302122
TUBE ASSEMBLY,CAPILLARY
554030
67303323
CONDENSER ASSEMBLY,FIRST
554160
67500119
COMPRESSOR SET,CHINA
559011
67302614
FAN,AXIAL
567502
67301409
O.L.P
731373
67306308
INSTALL PART ASSEMBLY,SINGLE
W0CZZ
67300716
CAPACITOR,DRAWING
W48602
67302500
CLAMP,SPRING
—24—
CP12A10
Loc No FRIEDRICH
Description
130410
67302922
BASE ASSEMBLY,SINGLE
130910
67303710
CABINET ASSEMBLY,SINGLE
135312
67306013
GRILLE ASSEMBLY,FRONT(SINGLE)
135313
67306108
GRILLE,INLET
135500
67300310
COVER
147581
67306206
LOUVER,HORIZONTAL
147582-1
67306258
LOUVER,VERTICAL
147582-2
67306259
LOUVER,VERTICAL
148000
67303908
BRACE
149980
67303112
SHROUD ASSEMBLY
152302
67304307
FILTER ASSEMBLY,AIR CLEANER
237200
67305508
PANEL,CONTROL
238310
67500116
ESCUTCHEON
263230
67307807
THERMISTOR ASSEMBLY
264110
67300018
POWER CORD ASSEMBLY
267110
67307701
REMOTE CONTROLLER ASSEMBLY
268712
67307613
PWB(PCB) ASSEMBLY,MAIN(AC)
268714
67307614
PWB(PCB) ASSEMBLY,MAIN(DC)
346811
67303029
MOTOR ASSEMBLY,SINGLE
349001
67303506
DAMPER,VENTILATION
349480
67303411
ORIFICE
352390-1
67302729
AIR GUIDE ASSEMBLY
352390-2
67302730
AIR GUIDE
354210
67302424
EVAPORATOR ASSEMBLY,FIRST
359011
67302614
FAN,AXIAL
359012
67302615
FAN,TURBO
550140
67301901
ISOLATOR,COMP
552111
67302121
TUBE ASSEMBLY,CAPILLARY
554031
67303322
CONDENSER ASSEMBLY,BENT
554160
67500118
COMPRESSOR SET,CHINA
567502
67301416
O.L.P
731373
67306308
INSTALL PART ASSEMBLY,SINGLE
W0CZZ
67300716
CAPACITOR,DRAWING
—25—
MEMO
—26—
MEMO
—27—
Use Factory Certified Parts...
FRIEDRICH AIR CONDITIONING CO.
Visit our web site at www.friedrich.com
Post Office Box 1540 • 4200 N. Pan Am Expressway • San Antonio, Texas 78295-1540
• (210) 357-4400 • FAX (210) 357-4490
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