Friedrich CP10A10 User Manual

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Room Air Conditioner

Service and Parts

Manual

ZQ08B10ZQ10B10CP08A10CP10A10CP12A10

ZQ08/10;CP08/10/12 (06/05)

CONTENTS

1. PREFACE

 

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. TROUBLESHOOTING GUIDE

 

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.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.

1.2 INSULATION RESISTANCE TEST

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 08A10,C P 10A10,C P 12A10

 

MODE L S

ZQ08B 10

 

ZQ10B 10

 

 

C P08A10

 

 

C P10A10

C P12A10

IT E MS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

P OWE R S UP P LY

 

 

 

1ø, 115V, 60HZ

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C OOLING C AP AC ITY

(Btu/h)

7,800

 

10,000

 

 

 

7,800

 

 

10,000

12,000

 

 

 

 

 

 

 

 

 

 

 

 

 

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

 

 

 

 

 

 

 

 

 

 

 

 

 

E .E .R

(BTU/W.h)

9.7

 

9.8

 

 

 

 

 

 

10.8

 

 

 

 

 

 

 

 

 

 

 

 

 

OP E R ATING

INDOOR (¡ C )

 

 

26.7(DB )*

19.4(WB )**

 

 

 

 

 

 

 

 

 

 

 

 

 

C ONDITION

OUTDOOR (¡ C )

 

 

35(DB )*

23.9(WB )**

 

 

 

 

 

 

 

 

 

 

 

 

 

R E FR IG E R ANT (R -22)C HAR G E

300g(10.6oz)

 

520g(18.3oz)

 

 

420g(14.8oz)

 

525g(18.5oz)

510g(18.0oz)

 

 

 

 

 

 

 

 

 

 

 

 

E VAP OR ATOR

 

2 ROW 11STACKS

 

3 ROW 11STACKS

 

 

 

2 ROW 10STACKS

3 ROW 12STACKS

 

 

 

 

 

 

 

 

 

 

 

 

C ONDE NS E R

 

2 ROW 16STACKS

 

2 ROW 16STACKS(L)

 

 

 

2 ROW 17STACKS

2 ROW 17STACKS(L)

 

 

 

 

 

 

 

 

 

 

 

 

FAN, INDOOR

 

 

 

 

 

 

TUR BO FAN

 

 

 

 

 

 

 

 

 

 

 

 

FAN, OUTDOOR

 

 

PR OPE LLE R TYPE FAN WITH S LINGE R R ING

 

 

 

 

 

 

 

 

 

 

 

 

 

FAN S P E E DS , FAN/C OOLING

2/3

 

 

 

 

 

 

 

 

3/3

 

 

 

 

 

 

 

 

 

 

 

 

 

FAN MOTOR

 

 

 

 

 

 

6 POLE S

 

 

 

 

 

 

 

 

 

 

 

 

 

OP E R ATION C ONTR OL

 

R OTAR Y S WITCH

 

 

 

R E MOTE C ONTR OLLE R

 

 

 

 

 

 

 

 

 

 

 

 

R OOM TE MP . C ONTR OL

 

THE R MOS TAT

 

 

 

THE R MIS TOR

 

 

 

 

 

 

 

 

 

 

 

AIR DIR E C TION C ONTR OL

 

 

VE R TIC AL LOUVE R (R IG HT & LE F T)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HOR IZONTAL LOUVE R (UP & DOWN)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C ONS TR UC TION

 

 

 

S LIDE IN-OUTC HAS S IS

 

 

 

 

 

 

 

 

 

 

 

P R OTE C TOR

C OMP R E S S OR

 

 

OVE R LOAD P R OTE C TOR

 

 

 

 

 

 

 

 

 

 

 

 

 

FAN MOTOR

 

 

INTE R NAL THE R MAL P R OTE C TOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

P OWE R C OR D

 

 

 

(3 WIR E WITH G R OUDING )

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ATTAC HME NT P LUG (C OR D-CONNE C TE D TY P E )

 

 

 

 

 

 

 

 

 

 

 

DR AIN S Y S TE M

 

DR AIN P IP E OR S P LAS HE D B Y F AN S LING E R

 

 

 

 

 

 

 

 

 

 

 

 

 

NE T WE IG HT

(lbs/kg)

 

 

 

62/28

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OUTS IDE DIME NS ION

(inch)

 

 

203/32 x 1329/32 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-inandslide-outchassis for the simple installation and service.

Low air-intake,topcooled-airdischarge.

Built-inadjustable Thermistor

Washable one-touchfilter

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.

LOW FAN

: Low fan speed without cooling.

HIGH COOL : Cooling with the high fan speed.

MED COOL : Cooling with the medium fan speed.

LOW COOL : Cooling with the low fan speed.

 

 

 

5

MED

HIGH

4

6

FAN

COOL

 

 

 

 

3

7

LOW

MED

2

8

 

 

FAN

COOL

1

9

 

 

LOW COOL

Fig A

—4—

DIS P L AY

 

R E MOT E C ONTR OL

 

 

 

2 6

Power

Te mp

Fan S peed

T imer Mode

5

1

2

4

3

3

5

4

1

 

 

Fig B

Fig C

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—

Figure 1
Figure 2

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-installthe components by referring to the

removal procedure, above.

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-installthe components by referring to the removal procedure, above.

2.1.3 CONTROL BOX

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.

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-installthe 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—

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-installthe components by referring to the removal procedure, above.

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-installby referring to the removal procedure.

Figure 4

Figure 5

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-installthe 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-installthe 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.

Figure 10

6.Remove the compressor. (See Figure 10)

7.Re-installthe components by referring to the removal procedure, above.

—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-installthe components by referring to the removal procedure, above.

CO

OL

 

 

 

 

 

 

 

FAN

 

 

 

 

 

 

 

 

DRY

 

 

 

 

 

 

 

 

 

 

IND

 

FAN

 

 

 

 

 

 

OOR

DE

 

 

 

 

 

 

 

 

SIRED

ENER

 

 

 

 

 

 

GY

 

 

 

 

 

 

 

SA

 

 

 

 

 

 

 

VER

 

 

 

 

 

 

P

AIR

 

 

 

 

 

 

 

URYF

 

 

 

 

 

 

 

AU

IER

 

 

 

 

 

 

RES TO

 

 

 

 

 

 

 

TART

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-installthe component by referring to the removal procedure, above.

(Use only one ground-markedhole for ground

connection.)

7.If the supply cord of this appliance is damaged, it must be replaced by the factory specifiled cord.

 

FAN

TIM

 

SPENED

MODE

TEMP

POW

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-installthe components by referring to the removal procedure, above.(See Figure 13)

2.4 REFRIGERATING CYCLE

2.4.1 CONDENSER

CAUTION

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-installthe components by referring to notes. (See Figure 14)

2.4.2 EVAPORATOR

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-installthe components by referring to notes. (See Figure 15)

Figure 13

Figure 14

Figure 15

—10—

2.4.3 CAPILLARY TUBE

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

3.Remove the capillary tube.

4.Re-installthe components by referring to 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-offtubes.

3.Solder service valves into the pinch-offtube ports, leaving the valves open.

4.Solder the pinch-offtubes 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 theHigh-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-sidewill 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-sidegauge; 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-offtool with the unit still running and clamp on to thepinch-offtube. Using a tube cutter, cut thepinch-offtube about 2 inches from thepinch-offtool. Usesil-fossolder and solderpinch-offtube closed. Turn off the unit, allow it to set for a while, and then test the leakage of thepinch-offconnection.

—11—

Equipment needed: Vacuum pump, Charging cylinder, Manifold gauge, Brazing equipment.Pinch-offtool capable of making avapor-proofseal, 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

 

A

 

B

B

 

 

 

 

 

 

 

EXTERNAL

 

 

 

 

VACUUM PUMP

 

CHARGING

 

 

 

 

 

 

 

 

CYLINDER

 

 

 

 

C

 

 

Figure 16A-PullingVacuum

Figure 16B-Charging

 

—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

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

29 ")32/ 354(13

18(23/32")

MODEL:CP10A10,CP12A10

567(22 1/16")

 

 

29(1 5/32")

111(4 3/8")

600 23 5 8

803 (1") 4/

31 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

 

SUCTION LINE

VAPOR INLET

COMPLETE LIQUID

 

HOT

COOL LOW PRESSURE VAPOR

BOIL OFF POINT

DISCHARGED

 

 

COOLED

 

 

AIR

 

 

 

AIR

 

 

 

ROOM AIR HEAT LOAD

 

 

 

 

OUTSIDE COOLING

 

 

 

AIR FOR REFRIGERANT

 

MOTOR

PASS THROUGH

 

 

 

 

 

COMPRESSOR

 

 

 

OIL

 

 

LIQUID

 

 

LIQUID OUTLET

PRESSURE

 

 

DROP

 

 

 

(LIQUID REFRIGERANT)

 

HIGH PRESSURE VAPOR

 

 

 

CAPILLARY TUBE

 

LIQUID REFRIGERANT

 

 

 

Figure 17

 

LOW PRESSURE VAPOR

 

 

 

 

—14—

 

 

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)

Malfunction of fan

Clogged air filter.

Obstruction at air outlet

Correct above problem.

Check clogging in refrigeration circuit.

Repair clogging in refrigeration circuit.

Check outdoor coil

(heat exchanger) & the fan operation.

Check gas leakage.

Repair gas leak.

Replacement of unit if the unit is beyond repair.

Satisfactory operation with temperature difference of inlet & outlet air ;

18~26°F.

Check heat load increase.

Clean condenser.

Not on separate circuit.

Check inside gas pressure.

Adjusting of refrigerant charged.

Malfunction of compressor.

Replacement of compressor.

—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

 

 

 

 

 

 

 

 

Fan only fails to start.

 

start.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Improper wiring.

 

Drop of power voltage.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Improper thermostat setting.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Defect of fan motor

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Defect of compressor

 

 

 

 

 

 

 

 

capacitor.

 

 

 

 

 

 

 

 

 

 

 

 

 

capacitor.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Loose terminal connection.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Irregular motor resistance

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(

).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Capacitor check.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Irregular motor insulation

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(

).

 

 

 

 

 

 

 

 

 

Improper wiring.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Replacement

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Replacement of fan motor.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Irregular motor resistance ()

Irregular motor insulation ()

Replacement of compressor (Motor damaged)

Regular but fails to start.

Replacement of compressor (locking of rotor, metal).

—16—

COMPLAINT

CAUSE

REMEDY

 

 

 

Fan motor will not run.

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

Connect wire. Refer to wiring diagram for terminal

 

connection loose

identification. Repair or replace loose terminal.

 

 

 

 

Capacitor (Discharge

Test capacitor.

 

capacitor before testing.)

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 to5/16 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

Revolves on overload.

Check voltage. If not within limits, call an electrician.

intermittently

 

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.

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.

 

 

 

Compressor will not run,

Voltage

Check voltage.

but fan motor runs.

 

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

CAUSE

REMEDY

 

 

 

 

Compressor will not run,

Thermostat

Check the position of knob. If not at the coldest

but fan motor runs.

 

setting, advance the knob to this setting and restart

 

 

 

unit.

 

 

 

Check continuity of the thermostat. Replace

 

 

 

thermostat if circuit is open.

 

 

 

 

 

 

Capacitor (Discharge

Check the capacitor.

 

 

capacitor before servicing.)

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.)

 

 

 

 

Compressor cycles on

Voltage

Check the voltage.

overload.

 

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.)

 

 

 

 

Compressor cycles on

Fan motor

If not running, determine the cause. Replace if

overload.

 

required.

 

 

 

 

 

 

Condenser air flow

Remove the cabinet. inspect the interior surface of

 

 

restriction

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.

 

 

 

 

Compressor cycles on

Capacitor

Test capacitor.

 

 

overload.

Wiring

Check the terminals. If loose, repair or replace.

 

 

 

 

 

 

Refrigerating system

Check the system for a restriction.

 

 

 

Insufficient cooling or

Air filter

If restricted, clean of replace.

heating

 

 

Exhaust damper door

Close if open.

 

 

 

 

 

 

 

 

Unit undersized

Determine if the unit is properly sized for the area to

 

 

 

be cooled.

 

 

 

Excessive noise

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

 

 

BK

CN-MOTOR

CN-AC/DC

CN-AC/DC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

 

 

GN/YL

 

BL

 

 

 

 

 

(GN)

MOTOR

RD

 

 

 

DC PCB

 

 

 

YL

 

 

 

 

 

 

 

LOW-RY

MED-RY

HI-RY

 

 

 

 

OR

ASSEMBLY

 

 

 

 

 

 

 

 

 

 

CAPACITOR

 

 

 

CN-TH1

9

2

 

F

YL

 

 

 

 

 

 

 

POWER

 

7

 

 

 

C

 

 

 

 

 

OR(BR)

 

TRANS

 

THERMISTOR

 

 

 

 

BK

CN-PWR

 

 

 

 

 

 

RD

 

 

6

 

 

 

H

 

 

 

 

 

 

ZNR01J

 

 

 

 

 

 

 

 

 

 

 

 

 

WH(BL)

 

 

 

 

3

 

 

(Ribbed)

 

FUSE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

250V/T2A

 

 

 

 

 

 

BK(BR)

 

(115V/T2A)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Plain)

 

3

 

 

 

 

 

GN/YL

 

 

 

 

 

 

 

(GN)

R

 

RY-COMP

 

 

 

 

 

 

4

 

 

 

 

3

COMP. S

 

AC PCB

 

 

 

 

 

C

BL

 

 

 

 

 

ASSEMBLY

 

 

 

 

 

OLP

 

 

 

4

 

 

 

 

 

 

 

WIRING DIAGRAM

3854AR3563N

 

 

 

 

 

 

 

MODEL: ZQ08B10,ZQ10B10

 

 

 

 

 

 

 

POWER INPUT

 

 

 

 

 

 

BK(BR)

WH(BL)

 

 

 

 

 

 

(Plain)

(Ribbed)

 

ROTARY SWITCH

 

 

 

 

GN(GN/YL)

7

8

L

RD

 

RD

 

 

 

 

6

H

BK

 

BK

 

 

 

 

4

M

BL

 

BL

MOTOR

1

 

2

 

 

 

OR(BR)

1

 

 

 

 

 

 

 

 

 

 

 

YL

 

 

CAPACITOR

 

 

 

 

 

 

YL

 

F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OR(BR)

 

 

 

 

 

 

 

 

 

C

 

 

 

 

 

 

 

 

2

 

 

 

R

 

 

BK

BK

 

 

 

 

 

 

 

 

 

 

BL

COMP.

S

 

RD

RD

H

 

BR(YL) BL

BL

 

 

 

C

 

BK

 

 

 

 

 

 

 

 

OLP

 

THERMOSTAT

RD

 

 

P.T.C

WIRING DIAGRAM

3854AR3563A

8

4

 

 

 

 

S: Service Parts

 

 

 

 

N: Non Service Parts

 

 

 

 

 

 

 

 

 

LOCATION

DESCRIPTION

Q'TY

 

RE-

 

 

NO.

PER SET

 

MARKS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

 

346811

W48602

559011

359012

 

W48602

 

267110

 

 

352390-2

354210

 

249950

 

263230

 

 

 

 

352390-1

268712

268714

135500

 

 

W0CZZ

238310

 

349001

 

 

 

 

 

 

 

567502

 

 

 

349480

 

264110

 

130410

237200

 

 

 

 

 

 

135312

 

554160

 

 

 

147582-2

249950

 

 

147581

 

 

550140

 

 

 

 

 

266003

552111

 

269310

352113

 

 

 

 

 

 

352115

 

147582-1

 

135500

 

 

W0CZZ

 

 

 

152302

352113

264110

35211A

135313 149410

—20—

6. REPLACEMENT PARTS LIST

ZQ08B10ZQ10B10CP08A10CP10A10CP12A10

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

R: Service Parts

N: Non Service Parts

—21

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