Friedrich UE08, UE10, UE12 User Manual

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Thru-the-WallSeries

Service and Parts

Manual

Thru-the-WallSeries

115 Volts UE08

230 Volts UE10UE12

UE08/UE10/UE12 (05/05)

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....................................

5

2.1.1 FRONT GRILLE .....................................

5

2.1.2 CABINET................................................

5

2.1.3 CONTROL BOX .....................................

5

2.2 AIR HANDLING PARTS..................................

6

2.2.1 ORIFICE, HEATER ASSY AND TURBO FAN .........

6

2.2.2 FAN ........................................................

6

2.2.3 SHROUD................................................

7

2.3 ELECTRICAL PARTS .....................................

7

2.3.1 MOTOR..................................................

7

2.3.2 COMPRESSOR .....................................

7

2.3.3 CAPACITOR ..........................................

7

2.3.4 POWER CORD ......................................

8

2.3.5 THERMOSTAT ......................................

8

2.3.6 ROTARY SWITCH .................................

8

2.4 REFRIGERATION CYCLE..............................

9

2.4.1 CONDENSER ........................................

9

2.4.2 EVAPORATOR ......................................

9

2.4.3 CAPILLARY TUBE.................................

9

3. TROUBLESHOOTING GUIDE

 

3.1 OUTSIDE DIMENSIONS...............................

12

3.2 PIPING SYSTEM ..........................................

12

3.3 TROUBLESHOOTING GUIDE......................

13

4. SCHEMATIC DIAGRAM

 

4.1 CIRCUIT DIAGRAM ......................................

18

5. EXPLODED VIEW..................................

19

6. REPLACEMENT PARTS LIST .......

20

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 the unit, set the ROTARY SWITCH or POWER SWITCH to OFF(O) 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 the unit, make an insulation resistance test to protect 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 & 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 all the positions (except OFF or O) of the ROTARY SWITCH or POWER SWITCH.

4.The value should be over 1MΩ .

—2—

1.3 SPECIFICATIONS

1.3.1 FOR UE08A13B/UE10A33B/UE12A33B

 

 

 

ITEMS

MODELS

UE08A13B

UE10A33B

UE12A33B

REMARK

 

 

 

 

 

 

POWER SUPPLY

 

1Ø, 115V, 60Hz

1Ø, 208/ 230V, 60Hz

 

 

CAPACITY

(Btu/h)

8,000

9,800/10,000

11,400/11,700

 

COOLING

INPUT

(W)

830

1,040/1,060

1,210/1,250

 

RUNNING CURRENT (A)

7.5

5.2/4.7

6.2/5.8

 

 

 

 

E.E.R.

(Btu/W.h)

10.0

9.4

9.4

 

 

CAPACITY

(Btu/h)

3,850

9,200/11,200

 

HEATING

INPUT

(W)

1,230

2,900/3,500

 

 

RUNNING CURRENT (A)

10.7

14.0/15.3

 

OPERATING COOLING

INDOOR (°C)

 

26.7 (DB)

19.4 (WB)

 

 

OUTDOOR (°C)

 

 

35 (DB)

23.9 (WB)

 

 

TEMPERA-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

INDOOR (°C)

 

21.1 (DB)

15.6 (WB)

 

 

TURE

HEATING

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OUTDOOR (°C)

 

 

8.3 (DB)

6.1 (WB)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

REFRIGERANT (R-22)CHARGE(g)

380(13.2 OZ)

 

440(15.5 OZ)

 

470(16.6 OZ)

 

EVAPORATOR

 

 

2 ROW 12 STACKS

 

2 ROW 11 STACKS LOUVERED-

 

 

 

 

 

 

 

FIN TYPE

CONDENSER

 

 

2 ROW 17 STACKS, L-BENDEDTYPE

 

 

 

 

 

 

 

 

 

FAN, INDOOR

 

 

 

 

TURBO FAN

 

 

 

 

 

 

 

 

FAN, OUTDOOR

 

 

PROPELLER TYPE FAN WITH SLINGER-RING

 

 

 

 

 

 

 

 

 

FAN SPEEDS (FAN/COOLING/HEATING)

 

1/ 2/ 2

 

 

 

 

 

 

 

 

 

 

 

 

FAN MOTOR

 

 

 

 

6 POLES

 

 

 

 

 

 

 

 

 

 

OPERATION CONTROL

 

 

ROTARY SWITCH

 

 

 

 

 

 

 

 

 

 

ROOM TEMP. CONTROL

 

 

THERMOSTAT

 

 

 

 

 

 

 

 

 

AIR DIRECTION CONTROL

VERTICAL LOUVER (RIGHT & LEFT)

 

 

 

 

 

 

 

 

HORIZONTAL LOUVER (UP & DOWN)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CONSTRUCTION

 

 

 

 

TOP-DOWN

 

 

 

 

 

 

 

 

 

 

 

 

 

ELECTRIC HEATER

 

 

1.2KW, 115V

 

 

3.5KW, 208/230V

 

 

 

 

 

 

 

 

 

 

COMPRESSOR

EXTERNAL OVERLOAD PROTECTOR

 

PROTECTOR

 

 

 

 

FAN MOTOR

INTERNAL THERMAL PROTECTOR

 

 

 

 

 

 

 

ELECTRIC HEATER

FUSE LINK, BIMETAL THERMOSTAT

 

POWER CORD

 

 

1.6m (3 WIRE WITH GROUDING)

 

 

 

 

 

 

 

 

 

 

 

 

ATTACHMENT PLUG (CORD-CONNECTEDTYPE)

 

 

 

 

 

 

 

 

 

 

 

 

DRAIN SYSTEM

 

 

SPLASHED BY FAN SLINGER

 

 

 

 

 

 

 

 

 

 

 

NET WEIGHT

 

(lbs/kg)

73/33

 

80/36

 

81/37

 

 

 

 

 

 

 

 

 

 

 

 

DIMENSION

 

 

 

(inch)

 

2421/32 x 1413/32 x 1921/32

 

 

(W x H x D)

 

 

 

(mm)

 

 

626 x 366 x 499

 

 

SLEEVE DIMESION

 

(inch)

 

257/8 x 1517/32 x 1623/32

 

OPTIONAL

(W x H x D)

 

 

 

(mm)

 

656 x 394 x 425

 

PART

 

 

 

 

 

 

 

 

 

SLEEVE DEPTH

 

(inch)

 

20

 

 

 

 

 

 

 

 

 

 

 

 

WITH FRONT GRILLE

 

(mm)

 

510

 

 

 

—3—

1.4 FEATURES

Designed for cooling only.

Powerful and quiet cooling.

Top-downchassis for the simple installation and service.

Built in adjustable THERMISTOR and THERMOSTAT.

Washable one-touchfilter.

Compact size.

1.5 CONTROL LOCATIONS

• OPERATION

Off

- Turns the air conditioner off.

Fan Only

- The low fan speed operation without cooling (heating).

Low Cool

- Cooling with the low speed fan operation.

High Cool

- Cooling with the high speed fan operation.

Low Heat

- Heating with the low speed fan operation.

High Heat

- Heating with the high speed fan operation.

Turn the Temperature Knob to the desired setting. The central position is a normal setting for average conditions. You can change this setting, if necessary, in accordance with your temperature preference.

The thermostat automatically controls cooling or heating, but the fan runs continuously whenever the air conditioner is in operation. If the room is too warm, turn the thermostat control clockwise. If the room is too cool, turn the thermostat control counterclockwise.

CAUTION

When the air conditioner has been operating in the cooling or heating mode and is turned off or set to the fan only position, wait at least 3 minutes before resetting to the cooling operation again.

A slight burning odor may come from the unit when first switching to HEAT after the cooling season is over. This odor, caused by fine dust particles on the heater, will disappear quickly. This is normal operation.

• VENTILATION

Push the lever to the "CLOSE" position to cool, heat or recirculate room air only.

Pull the lever to the "OPEN" position to exhaust smoke or stale air from the room.

This feature is best used in conjunction with the FAN ONLY position.

PULL OPEN / PUSH CLOSE

—4—

2. DISASSEMBLY INSTRUCTIONS

Prior to disassembling the unit, make sure that the POWER switch is set to OFF and the power cord is unplugged from the wall receptacle.

2.1 MECHANICAL PARTS

2.1.1 FRONT GRILLE

1. Open the inlet grille downward.

2. Remove the screw which fastens the front grille.

3. Pull the front grille from the right side.

4. Remove the front grille. (See Fig. 1)

5. Re-installthe component by referring to the removal procedure.

Figure 1

2.1.2 CABINET

1. After disassembling the FRONT GRILLE, remove the 9 screws which fasten the cabinet at the both sides and the top. (See Fig. 2)

Keep these for later use.

Figure 2

2.1.3 CONTROL BOX

1. Remove the front grille. (Refer to section 2.1.1)

2. Remove the screw which fasten the control box. (See Fig. 3)

3. Pull the control box from the barrier.(See Fig.3)

4. Discharge the capacitor by placing a 20,000 ohm resistor across the capacitor terminals.

5. Disconnect two wire housings in the control box.

6. Pull the control box forward completely.

7. Re-installthe components by referring to the

removal procedure. (See Fig. 3)

(Refer to the circuit diagram found on pages Figure 3 29~30 in this manual and on the control box.)

—5—

2.2 AIR HANDLING PARTS

2.2.1ORIFICE, HEATER ASSY 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 2 screws which fasten the evaporator at the left side and the right side. (See Fig. 4)

4.Move the evaporator sideward carefully.

5.Remove the 2 terminals carefully

(See Fig. 5, Electric Heater Model only)

6.Remove the 4 screws which fasten the orifice. (See Fig. 5)

7.Remove the orifice. (See Fig. 5)

8.Using handheld pliers, remove the clamp which secures the turbo fan. (See Fig. 6)

9.Remove the turbo fan with pliers or your hand, without touching blades. (See Fig. 7)

10.Re-installthe components by referring to the removal procedures, above.

2.2.2FAN

1.Remove the cabinet. (Refer to section 2.1.2)

2.Remove the brace and shroud cover. (Refer to section 2.2.1)

3.Remove the 6 screws which fasten the condenser.

4.Move the condenser sideways carefully.

5.Using handheld pliers, remove the clamp which secures the fan.

6.Remove the fan. (See Fig. 8)

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

Figure 4

Figure 5

Figure 6

Figure

Figure 8

—6—

2.2.3 SHROUD

1.Remove the fan. (Refer to section 2.2.2)

2.Remove the screw which fastens the shroud.

3.Remove the shroud. (See Fig. 9)

4.Re-installthe components by referring to the removal procedures, above.

2.3 ELECTRICAL PARTS

2.3.1 MOTOR

1.Remove the cabinet. (Refer to section 2.1.2)

2.Remove the clamp cord and disconnect the wire housing in control box. (Refer to section 2.1.3)

3.Remove the turbo fan. (Refer to section 2.2.2)

4.Remove the fan. (Refer to section 2.2.2)

5.Remove the 4 or 2 screws which fasten the motor. (See Fig. 10)

6.Remove the motor.

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

2.3.2 COMPRESSOR

1.Remove the cabinet. (Refer to section 2.1.2)

2.Discharge the refrigerant system using a FreonTM Recovery System.

Install a valve for the recovery, before venting the Freon. Remove the valve when finished.

3.Disconnect the 3 leads from the compressor.

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. (See Fig. 11)

6.Remove the compressor.

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

2.3.3 CAPACITOR

1.Remove the control box. (Refer to section 2.1.3)

2.Remove knobs and the tips which fasten the display panel.

3.Remove 2 screws and unfold the control box. (See Fig. 12)

4.Remove the Rotary Switch.

5.Remove the screw and the clamp which fastens the capacitor. (See Fig. 12)

6.Disconnect all the leads on the capacitor terminals.

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

—7—

Figure 9

Figure 10

Figure 11

Figure 12

2.3.4 POWER CORD

1.Remove the control box. (Refer to section 2.1.3)

2.Unfold the control box. (Refer to section 2.3.3)

3. Disconnect the grounding screw from the control box.

4.Disconnect 2 receptacles.

5.Remove a screw which fastens the clip cord.

6. Pull the power cord. (See Fig. 13)

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

(Use only one ground-markedhole, , for ground connection.)

8. If the supply cord of this appliance is damaged, it must be replaced with the factory-authorizedand specified cord.

Figure 13

2.3.5 THERMOSTAT

1. Remove the control box. (Refer to section 2.1.3)

2. Unfold the control box. (Refer to section 2.3.3)

3. Remove the 2 screws which fasten the thermostat.

4. Disconnect all the leads of thermostat terminals.

5. Remove the thermostat. (See Fig. 14)

6. Re-installthe components by referring to the

removal procedures, above.

Figure 14

2.3.6 ROTARY SWITCH

1. Remove the control box. (Refer to section 2.1.3)

2. Unfold the control box. (Refer to section 2.3.3)

3. Remove 2 screws which fasten the rotary switch.

4. Disconnect all the leads of the rotary switch terminals.

5.Remove the rotary switch. (See Fig. 15)

6.Re-installthe components by referring to the

Figure 15

removal procedure, above.

—8—

2.4 REFRIGERATION CYCLE

CAUTION

Discharge the refrigerant system using a FreonTM Recovery System.

Install a valve for the recovery before venting the Freon. Remove the valve when finished.

2.4.1 CONDENSER

1.Remove the cabinet. (Refer to section 2.1.2)

2.Remove the brace and the shroud cover. (Refer to section 2.2.1)

3.Remove the 5 screws which fasten the condenser.

4.After discharging the refrigerant completely into a FreonTM Recovery System, unbraze the interconnecting tube at the condenser connections.

5.Remove the condenser.

6.Re-installthe components by referring to the notes

– on pages 13-14.(See Fig. 16)

2.4.2 EVAPORATOR

1.Remove the cabinet. (Refer to section 2.1.2)

2.Discharge the refrigerant completely – into a FreonTM Recovery System.

3.Remove the 2 screws which fasten the evaporator at the left side and the right side.

4.Move the evaporator sideward carefully and then unbraze the interconnecting tube at the evaporator connectors.

5.Remove the evaporator.

6.Re-installthe components by referring to the notes

– on pages 13-14.(See Fig. 17)

2.4.3 CAPILLARY TUBE

1.Remove the cabinet. (Refer to section 2.1.2)

2.After discharging the refrigerant completely – into a FreonTM Recovery System, unbraze the interconnecting tube at the capillary tube.

3.Remove the capillary tube.

4.Re-installthe components by referring to the notes

– on page 13-14.

Figure 16

Figure 17

—9—

NOTES

Replacement of the refrigeration components

1.When replacing the refrigeration components, be sure todischarge the refrigerant system using

a FreonTM recovery System.

Install a valve for the recovery before venting the Freon. Remove the valve when finished.

2.After discharging the unit completely, remove the desired component, and unbrace 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 Fig. 18A.

2)Start the vacuum pump, slowly open manifold valves A and B with two full turns counterclockwise and leave the valves closed. 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 Fig. 18B. 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 Fig. 18B. 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.

—10—

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.

CONDENSER

COMPOUND GAUGE

 

 

 

 

(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 18A-PullingVacuum

Figure 18B-Charging

 

—11—

 

 

 

3. TROUBLESHOOTING GUIDE

3.1 OUTSIDE DIMENSIONS

19-21/32"

 

 

24-21/32"

 

 

 

 

(499mm)

(626mm)

 

 

 

 

-14

 

(366mm)

/32"

 

 

13

 

 

 

 

 

3.2 PIPING SYSTEM

CONDENSER COILS

FAN

CAPILLARY TUBE

MOTOR

COMPRESSOR

TURBO FAN

EVAPORATOR COILS

: REFRIGERANT FLOW

Following is a brief description of the important components and their functions in the refrigeration system. Refer to Fig.19 to follow the refrigeration cycle and the flow of the refrigerant in the cooling cycle.

 

ROOM AIR CONDITIONER

 

CYCLE OF REFRIGERATION

 

EVAPORATOR COILS

 

CONDENSER COILS

 

SUCTION LIME

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

PRESSURE LIQUID OUTLET

DROP

(LIQUID REFRIGERANT)

HIGH PRESSURE VAPOR

CAPILLARY TUBE

 

LIQUID PEFRIGERANT

 

 

LOW PRESSURE VAPOR

Figure 19

— 12—

3.3 TROUBLESHOOTING GUIDE

In general, possible trouble is classified in two causes.

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 is running but cooling is ineffective

Ineffective Cooling

Check cold air circulation for smooth flow.

Dirty indoor coil (Heat exchanger)

Malfunction of fan

Clogged air filter

Obstruction at air outlet

Stop auto air-swing

Correct above troubles

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.

Unexpected residue

Overloaded Circuit

Check inside gas pressure.

Adjusting of refrigerant charge

Malfunction of compressor

Replacement of compressor

— 13—

Fails to Start

Check power source.

 

 

 

 

Check circuit breaker

 

 

 

and fuse.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Check control switch setting.

Gas leakage at feeler bulb of thermostat

Check control switch.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Only compressor fails to

 

 

 

 

 

Only fan fails to start.

start.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Improper wiring.

Drop in power voltage.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Improper thermostat setting

 

 

 

 

 

 

 

 

 

Defect of fan motor

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Defective compressor

 

 

 

 

 

 

capacitor.

 

 

 

 

 

 

 

 

capacitor.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Loose terminal connection.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Irregular motor resistance

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(

).

 

Check capacitor.

 

 

 

 

 

 

 

 

 

 

 

 

 

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)

— 14—

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 condenser fans must

 

 

have 1/4 to5/16 inch clearance to the base. If it is

 

 

hitting 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. See limits on page 18. If not within

intermittently

 

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.

Grommets

Check grommets; if worn or missing, replace them.

 

 

 

 

Fan

If cracked, out of balance, or partially missing,

 

 

replace it.

 

 

 

 

Turbo fan

If cracked, out of balance, or partially missing,

 

 

replace it.

 

 

 

 

Loose set screw

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.

 

 

 

— 15—

COMPLAINT

CAUSE

REMEDY

 

 

 

Compressor will not run,

Voltage

Check voltage. See the limits at the bottom of this

but fan motor runs.

 

page. 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.

 

 

 

 

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

Check the capacitor.

 

capacitor before

 

Replace if not within ±10% of manufacturers

 

servicing.)

 

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.)

 

 

 

ROOM AIR CONDITIONER VOLTAGE LIMITS

NAME PLATE RATING

MINIMUM

MAXIMUM

 

 

 

115V

103.5V

126.5V

 

 

 

208/230V

187V

253V

 

 

 

— 16—

COMPLAINT

CAUSE

REMEDY

 

 

 

Compressor cycles

Voltage

Check the voltage. See the limits on the preced-

on overload.

 

ing page. 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

Remove the cabinet. Inspect the interior surface

 

restriction

of the condenser; if restricted, clean carefully

 

 

do not damage fins. Clean the interior

 

 

base before reassembling.

 

 

 

 

Condenser fins

If condenser fins are closed over a large area

 

(damaged)

on the coil surface, head pressures will increase,

 

 

causing the compressor to cycle. 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.

Insufficient cooling or

Air filter

If restricted, clean or 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 and carefully rearrange tubing

 

 

not to contact cabinet, compressor, shroud, and

 

 

barrier.

 

 

 

— 17—

4. SCHEMATIC DIAGRAM

4.1 CIRCUIT DIAGRAM

• MODEL : UE08A13B/UE10A33B/UE12A33B

 

 

 

 

 

 

 

POWER INPUT

 

1

 

 

 

 

 

 

BK(BR)

 

 

WH(BL)

 

 

 

 

 

 

 

 

 

ROTARY SWITCH

 

 

(Plain)

 

(Ribbed)

 

 

 

 

 

GN/YL

 

 

 

8

 

 

 

RD

 

 

 

 

7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

L

BL

 

BL

 

 

 

 

 

2

4

H

BK

 

BK

MOTOR

 

 

3

1

2

 

 

 

OR(BR)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YL

 

 

CAPACITOR

 

 

 

BL

 

 

 

YL

 

 

F

 

 

 

 

 

 

OR(BR)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

THERMOSTAT

WH

C

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C

 

 

5

 

 

 

 

 

 

 

H

BK

 

 

 

 

 

 

 

 

L

 

 

 

 

 

 

 

 

 

 

 

 

RD

RD

 

 

 

 

BK

BK

 

C

 

 

 

 

 

R

 

 

 

 

 

 

 

 

 

 

 

 

 

7

 

 

COMP

S

 

RD

RD

 

H

 

 

 

 

 

 

 

 

 

 

 

 

C

BR(YL)

BL

BL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

O.L.P

 

 

 

 

 

 

 

 

RD

 

 

 

 

 

 

6

 

 

 

FUSE LINK

HEATER

 

 

 

 

 

 

 

 

 

 

 

 

 

RD

 

 

 

 

 

 

8

 

 

 

 

BI-METAL

 

 

 

 

WIRING DIAGRAM

 

 

3854AR3563D

 

THERMOSTAT

 

 

 

 

 

 

 

 

 

 

 

 

NO.

DESCRIPTION

 

PART NO.

 

Q'TY

RE-

UE08A13B

UE10A33B

UE12A33B

PER SET

MARKS

 

 

 

 

 

 

 

 

 

 

 

 

 

1

POWER CORD

6411A20048F

6411A20048L

1

 

 

 

 

 

 

 

 

2

ROTARY SWITCH

 

67300502

 

1

 

 

 

 

 

 

 

 

3

FAN MOTOR

67303019

67303010

4681A20041M

1

 

 

 

 

 

 

 

 

4

CAPACITOR

67300714

67300711

1

 

 

 

 

 

 

 

 

5

THERMOSTAT

 

67300404

 

1

 

 

 

 

 

 

 

 

6

COMPRESSOR

67301625

67301623

2525UKHK2AA

1

 

 

 

 

 

 

 

 

7

OVERLOAD PROTECTOR

67301411

67301413

6750U-L039A

1

 

 

 

 

 

 

 

 

8

ELECTRIC HEATER

67301411

67310100

1

 

 

 

 

 

 

 

 

— 18—

5. EXPLODED VIEW

• MODEL: UE08A13B/UE10A33B/UE12A33B

G

E

147582-1

749180

130900

 

 

 

 

 

147582-2

 

Cool

Ene

Savrgyer

Fan

MODE

Timer

TIMER

TEMP SFPEANED

'F

POWER

152302

435301

135312

135313

352390 D

559010

 

 

349001

 

 

349480

 

 

148000

753010

F

W48602

 

753011

354210

149980

 

 

 

346811

 

 

 

 

 

554031

 

 

 

 

 

130410

 

 

 

 

349600

 

359012

 

 

 

 

 

249950

 

 

 

 

 

 

W48602

 

 

 

 

A

269310

266003

C 35211A

352113

B

 

 

 

 

 

567502

 

137215

 

 

 

 

 

 

 

 

 

554160

 

264110

 

 

 

 

 

 

W0CZZ

 

 

550140

149410

 

 

 

552111

 

 

 

 

— 19—

6. REPLACEMENT PARTS LIST

• MODEL: UE08A13B

R: Service Parts

N: Non Service parts

LOCATION NO.

MODEL

FRIEDRICH #

DESCRIPTION

QTY

130410

UE08A13B

67302917

BASE ASSEMBLY,SINGLE

1

R

130900

UE08A13B

67303705

CABINET

1

R

135312

UE08A13B

67306006

GRILLE ASSEMBLY,FRONT(SINGLE)

1

R

135313

UE08A13B

67306104

GRILLE,INLET

1

R

137215

UE08A13B

67305504

PANEL ASSEMBLY,CONTROL

1

R

147581

UE08A13B

67306203

LOUVER,HORIZONTAL

1

R

147582-1

UE08A13B

67306252

LOUVER,VERTICAL

1

R

147582-2

UE08A13B

67306253

LOUVER,VERTICAL

1

R

147900

UE08A13B

 

BARRIER,SINGLE

1

R

148000

UE08A13B

67303903

BRACE

1

R

149410

UE08A13B

67304102

KNOB ASSEMBLY

1

R

149980

UE08A13B

67303111

SHROUD

1

R

152302

UE08A13B

67304304

FILTER(MECH),A/C

1

R

249950

UE08A13B

 

CONTROL BOX ASSEMBLY,SINGLE

1

R

264110

UE08A13B

 

POWER CORD ASSEMBLY

1

R

266003

UE08A13B

67300502

SWITCH,ROTARY

1

R

269310

UE08A13B

67300404

THERMOSTAT ASSEMBLY

1

R

330720

UE08A13B

 

SCROLL

1

R

346811

UE08A13B

67303019

MOTOR ASSEMBLY,SINGLE

1

R

349480

UE08A13B

67303406

ORIFICE

1

R

349600

UE08A13B

67303607

MOUNT,MOTOR

1

R

352113

UE08A13B

67400175

TUBE ASSEMBLY,DISCHARGE SINGLE

1

R

35211A

UE08A13B

67400174

TUBE ASSEMBLY,SUCTION SINGLE

1

R

352380

UE08A13B

 

AIR GUIDE

1

R

352390

UE08A13B

67302720

AIR GUIDE ASSEMBLY

1

R

354210

UE08A13B

67302416

EVAPORATOR ASSEMBLY,FIRST

1

R

359012

UE08A13B

67302608

FAN,TURBO

1

R

435301

UE08A13B

67307203

GRILLE,REAR

1

R

435301

UE08A13B

 

GRILLE,REAR

1

R

550140

UE08A13B

67305001

ISOLATOR,COMP

1

R

552111

UE08A13B

67302217

TUBE ASSEMBLY,CAPILLARY

1

R

554031

UE08A13B

67303317

CONDENSER ASSEMBLY,BENT

1

R

554160

UE08A13B

67301625

COMPRESSOR

1

R

559010

UE08A13B

67303202

FAN ASSEMBLY,AXIAL

1

R

567502

UE08A13B

67301411

O.L.P

1

R

749180

UE08A13B

67303504

FRAME

1

R

749740

UE08A13B

 

GUIDE

1

R

753010

UE08A13B

 

HEATER ASSEMBLY,ELECTRIC

1

R

753011

UE08A13B

67310101

HEATER,ELECTRIC

1

R

W0CZZ

UE08A13B

67300714

CAPACITOR,DRAWING

1

R

W38581

UE08A13B

 

SHEET (MECH),VINYL

1

R

W48602

UE08A13B

67302500

CLAMP,SPRING

1

R

W54101

UE08A13B

 

INSULATION,ARTIRON

1

R

W5410C

UE08A13B

 

INSULATION,PE

1

R

— 20—

• MODEL: UE10A33B

 

 

R: Service Parts

 

 

N: Non Service parts

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LOCATION NO.

MODEL

FRIEDRICH #

DESCRIPTION

 

QTY

 

 

130410

UE10A33B

 

BASE ASSEMBLY,SINGLE

 

1

R

 

 

130900

UE10A33B

67303705

CABINET

 

1

R

 

 

135312

UE10A33B

67306005

GRILLE ASSEMBLY,FRONT(SINGLE)

 

1

R

 

 

135313

UE10A33B

67306104

GRILLE,INLET

 

1

R

 

 

137215

UE10A33B

67305504

PANEL ASSEMBLY,CONTROL

 

1

R

 

 

147581

UE10A33B

67306203

LOUVER,HORIZONTAL

 

1

R

 

 

147582-1

UE10A33B

67306252

LOUVER,VERTICAL

 

1

R

 

 

147582-2

UE10A33B

67306253

LOUVER,VERTICAL

 

1

R

 

 

147900

UE10A33B

 

BARRIER,SINGLE

 

1

R

 

 

148000

UE10A33B

67303903

BRACE

 

1

R

 

 

149410

UE10A33B

67304102

KNOB ASSEMBLY

 

1

R

 

 

149980

UE10A33B

67303111

SHROUD

 

1

R

 

 

152302

UE10A33B

67304304

FILTER(MECH),A/C

 

1

R

 

 

249950

UE10A33B

 

CONTROL BOX ASSEMBLY,SINGLE

 

1

R

 

 

264110

UE10A33B

 

POWER CORD ASSEMBLY

 

1

R

 

 

266003

UE10A33B

67300502

SWITCH,ROTARY

 

1

R

 

 

269310

UE10A33B

67300404

THERMOSTAT ASSEMBLY

 

1

R

 

 

330720

UE10A33B

 

SCROLL

 

1

R

 

 

346811

UE10A33B

67303010

MOTOR ASSEMBLY,SINGLE

 

1

R

 

 

349600

UE10A33B

67303607

MOUNT,MOTOR

 

1

R

 

 

352113

UE10A33B

67400181

TUBE ASSEMBLY,DISCHARGE SINGLE

 

1

R

 

 

352115

UE10A33B

67302010

TUBE ASSEMBLY,EVAPORATOR IN

 

1

R

 

 

35211A

UE10A33B

67400180

TUBE ASSEMBLY,SUCTION SINGLE

 

1

R

 

 

352380

UE10A33B

 

AIR GUIDE

 

1

R

 

 

352390

UE10A33B

67302720

AIR GUIDE ASSEMBLY

 

1

R

 

 

354210

UE10A33B

67302416

EVAPORATOR ASSEMBLY,FIRST

 

1

R

 

 

359012

UE10A33B

67302608

FAN,TURBO

 

1

R

 

 

435301

UE10A33B

67307201

GRILLE,REAR

 

1

R

 

 

435301

UE10A33B

 

GRILLE,REAR

 

1

R

 

 

550140

UE10A33B

67305001

ISOLATOR,COMP

 

1

R

 

 

552111

UE10A33B

67302214

TUBE ASSEMBLY,CAPILLARY

 

1

R

 

 

554031

UE10A33B

67303316

CONDENSER ASSEMBLY,BENT

 

1

R

 

 

554160

UE10A33B

67301623

COMPRESSOR SET

 

1

R

 

 

559010

UE10A33B

67303202

FAN ASSEMBLY,AXIAL

 

1

R

 

 

567502

UE10A33B

67301413

O.L.P

 

1

R

 

 

749180

UE10A33B

67303504

FRAME

 

1

R

 

 

749740

UE10A33B

 

GUIDE

 

1

R

 

 

W0CZZ

UE10A33B

67300711

CAPACITOR,DRAWING

 

1

R

 

 

W38581

UE10A33B

 

SHEET (MECH),VINYL

 

1

R

 

 

W48602

UE10A33B

67302500

CLAMP,SPRING

 

1

R

 

 

W54101

UE10A33B

 

INSULATION,ARTIRON

 

1

R

 

 

W5410C

UE10A33B

 

INSULATION,PE

 

1

R

 

— 21—

• MODEL: UE12A33B

 

 

R: Service Parts

 

 

N: Non Service parts

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LOCATION NO.

MODEL

FRIEDRICH #

DESCRIPTION

 

QTY

 

 

130410

UE12A33B

67302918

BASE ASSEMBLY,SINGLE

 

1

R

 

 

130900

UE12A33B

67303705

CABINET

 

1

R

 

 

135312

UE12A33B

67306005

GRILLE ASSEMBLY,FRONT(SINGLE)

 

1

R

 

 

135313

UE12A33B

67306104

GRILLE,INLET

 

1

R

 

 

137215

UE12A33B

67305504

PANEL ASSEMBLY,CONTROL

 

1

R

 

 

147581

UE12A33B

67306203

LOUVER,HORIZONTAL

 

1

R

 

 

147582-1

UE12A33B

67306252

LOUVER,VERTICAL

 

1

R

 

 

147582-2

UE12A33B

67306253

LOUVER,VERTICAL

 

1

R

 

 

147900

UE12A33B

 

BARRIER,SINGLE

 

1

R

 

 

148000

UE12A33B

67303903

BRACE

 

1

R

 

 

149410

UE12A33B

67304102

KNOB ASSEMBLY

 

1

R

 

 

149980

UE12A33B

67303111

SHROUD

 

1

R

 

 

152302

UE12A33B

67304304

FILTER(MECH),A/C

 

1

R

 

 

249950

UE12A33B

 

CONTROL BOX ASSEMBLY,SINGLE

 

1

R

 

 

264110

UE12A33B

 

POWER CORD ASSEMBLY

 

1

R

 

 

266003

UE12A33B

67300502

SWITCH,ROTARY

 

1

R

 

 

269310

UE12A33B

67300404

THERMOSTAT ASSEMBLY

 

1

R

 

 

330720

UE12A33B

 

SCROLL

 

1

R

 

 

346811

UE12A33B

 

MOTOR ASSEMBLY,SINGLE

 

1

R

 

 

349600

UE12A33B

67303606

MOUNT,MOTOR

 

1

R

 

 

352113

UE12A33B

 

TUBE ASSEMBLY,DISCHARGE SINGLE

 

1

R

 

 

352115

UE12A33B

 

TUBE ASSEMBLY,EVAPORATOR IN

 

1

R

 

 

35211A

UE12A33B

 

TUBE ASSEMBLY,SUCTION SINGLE

 

1

R

 

 

352380

UE12A33B

 

AIR GUIDE

 

1

R

 

 

352390

UE12A33B

67302720

AIR GUIDE ASSEMBLY

 

1

R

 

 

354210

UE12A33B

 

EVAPORATOR ASSEMBLY,FIRST

 

1

R

 

 

359012

UE12A33B

67302608

FAN,TURBO

 

1

R

 

 

435301

UE12A33B

 

GRILLE,REAR

 

1

R

 

 

550140

UE12A33B

67305001

ISOLATOR,COMP

 

1

R

 

 

554031

UE12A33B

67303318

CONDENSER ASSEMBLY,BENT

 

1

R

 

 

554160

UE12A33B

 

COMPRESSOR SET

 

1

R

 

 

559010

UE12A33B

67303202

FAN ASSEMBLY,AXIAL

 

1

R

 

 

567502

UE12A33B

 

O.L.P

 

1

R

 

 

749180

UE12A33B

67303504

FRAME

 

1

R

 

 

749740

UE12A33B

 

GUIDE

 

1

R

 

 

753010

UE12A33B

 

HEATER ASSEMBLY,ELECTRIC

 

1

R

 

 

W0CZZ

UE12A33B

67300711

CAPACITOR,DRAWING

 

1

R

 

 

W38581

UE12A33B

 

SHEET (MECH),VINYL

 

1

R

 

 

W48602

UE12A33B

67302500

CLAMP,SPRING

 

1

R

 

 

W54101

UE12A33B

 

INSULATION,ARTIRON

 

1

R

 

 

W5410C

UE12A33B

 

INSULATION,PE

 

1

R

 

— 22—

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)357-4480

P/NO.:3828A20040G

Printed in the U.S.A

UE08/UE10/UE12 (05/05)