Friedrich Metal Products UE08 Service Manual

UE08/UE10/UE12 (05/05)

Thru-the-Wall Series

Thru-the-Wall Series

Service and Parts

Manual

115 Volts UE08
230 Volts UE10 UE12

—2—

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.

CONTENTS

—3—

1.3 SPECIFICATIONS

1.3.1 FOR UE08A13B/UE10A33B/UE12A33B

REMARK

POWER SUPPLY

CAPACITY (Btu/h)
INPUT (W)
RUNNING CURRENT

(A)
E.E.R. (Btu/W.h)
CAPACITY (Btu/h)
INPUT (W)
RUNNING CURRENT

(A)

INDOOR (°C)

OUTDOOR (°C)

INDOOR (°C)

OUTDOOR (°C)
REFRIGERANT (R-22) CHARGE(g)
EVAPORATOR
CONDENSER
FAN, INDOOR
FAN, OUTDOOR
FAN SPEEDS (FAN/COOLING/HEATING)
FAN MOTOR
OPERATION CONTROL
ROOM TEMP. CONTROL

CONSTRUCTION
ELECTRIC HEATER

COMPRESSOR
FAN MOTOR
ELECTRIC HEATER

DRAIN SYSTEM
NET WEIGHT (lbs/kg)
DIMENSION (inch)
(WxHxD) (mm)
SLEEVE DIMESION (inch)
(WxHxD) (mm)
SLEEVE DEPTH (inch)
WITH FRONT GRILLE (mm)

1Ø, 115V, 60Hz 1Ø, 208/ 230V, 60Hz

8,000 9,800/10,000 11,400/11,700

830 1,040/1,060 1,210/1,250

7.5 5.2/4.7 6.2/5.8

10.0 9.4 9.4
3,850 9,200/11,200
1,230 2,900/3,500

10.7 14.0/15.3

26.7 (DB) 19.4 (WB)
35 (DB) 23.9 (WB)

21.1 (DB) 15.6 (WB)

8.3 (DB) 6.1 (WB)

380(13.2 OZ) 440(15.5 OZ) 470(16.6 OZ)

2 ROW 12 STACKS 2 ROW 11 STACKS

2 ROW 17 STACKS, L-BENDED TYPE

TURBO FAN

PROPELLER TYPE FAN WITH SLINGER-RING

1/ 2/ 2

6 POLES

ROTARY SWITCH

THERMOSTAT

VERTICAL LOUVER (RIGHT & LEFT)

HORIZONTAL LOUVER (UP & DOWN)

TOP-DOWN

1.2KW, 115V 3.5KW, 208/230V
EXTERNAL OVERLOAD PROTECTOR

INTERNAL THERMAL PROTECTOR

FUSE LINK, BIMETAL THERMOSTAT

1.6m (3 WIRE WITH GROUDING)

ATTACHMENT PLUG (CORD-CONNECTED TYPE)

SPLASHED BY FAN SLINGER

73/33 80/36 81/37

24

21

/32 x1413/32 x1921/32

626 x 366 x 499

257/8 x15

17

/32 x16

23

/32

656 x 394 x 425

20

510

MODELS

ITEMS

OPERATING
TEMPERA­TURE

AIR DIRECTION CONTROL

POWER CORD

PROTECTOR

HEATING

COOLING

COOLING

HEATING

LOUVERED­FIN TYPE

UE08A13B UE10A33B UE12A33B

OPTIONAL
PART

1.4 FEATURES

• Designed for cooling only.

• Powerful and quiet cooling.

• Top-down chassis for the simple installation and service.

1.5 CONTROL LOCATIONS

• Built in adjustable THERMISTOR and THERMOSTAT.

• Washable one-touch filter.

• Compact size.

• 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.

—4—

PULL OPEN / PUSH CLOSE

• OPERATION

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.

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.

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.

CAUTION

—5—

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-install the component by referring to the
removal procedure.

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.

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-install the components by referring to the
removal procedure. (See Fig. 3)
(Refer to the circuit diagram found on pages
29~30 in this manual and on the control box.)

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.

Figure 1

Figure 2

Figure 3

Figure 7

—6—

2.2 AIR HANDLING PARTS

2.2.1 ORIFICE, 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-install the components by referring to the
removal procedures, above.

2.2.2 FAN

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-install the components by referring to the

removal procedures, above.

Figure 4

Figure 5

Figure 6

Figure 8

—7—

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-install the 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-install the 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 Freon

TM

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-install the 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-install the components by referring to the

removal procedures, above.

Figure 9

Figure 10

Figure 11

Figure 12