Friedrich Uni-Fit US08C10 Building instructions

Unifit Cool Svc Parts 2010 (05/10)
Thru-the-Wall Series
Thru-the-Wall Series
Service and Parts
Manual
115 Volts US08C10 US10C10 US12C10
Uni- Fit R
Unifit. Cool (03/07)
230 Volts US10C30 US12C30 US14C30

—2—
1. PREFACE
1.1 SAFETY PRECAUTIONS ...............................2
1.2 INSULATION RESISTANCE TEST.................2
1.3 SPECIFICATIONS ..........................................3~8
1.4 FEATURES.....................................................9
1.5 CONTROL LOCATIONS.................................9
2.
DISASSEMBLY INSTRUCTIONS
2.1 MECHANICAL PARTS....................................10
2.1.1 FRONT GRILLE.....................................10
2.1.2 CABINET................................................10
2.1.3 CONTROL BOX.....................................10
2.2 AIR HANDLING PARTS..................................11
2.2.1
ORIFICE, HEATER ASSY AND TURBO FAN .........11
2.2.2 FAN........................................................11
2.2.3 SHROUD................................................12
2.3 ELECTRICAL PARTS.....................................12
2.3.1 MOTOR..................................................12
2.3.2 COMPRESSOR.....................................12
2.3.3 CAPACITOR..........................................12
2.3.4 POWER CORD......................................13
2.3.5 THERMISTOR .......................................13
2.4 REFRIGERATION CYCLE.................................14
2.4.1 CONDENSER......................................14
2.4.2 EVAPORATOR....................................14
2.4.3 CAPILLARY TUBE...............................14
3.
TROUBLESHOOTING GUIDE
3.1 OUTSIDE DIMENSIONS...............................17
3.2 PIPING SYSTEM ..........................................17
3.3 TROUBLESHOOTING GUIDE......................18
4. SCHEMATIC DIAGRAM
4.1 CIRCUIT DIAGRAM......................................23
5. EXPLODED VIEW..................................24
6. REPLACEMENT PARTS LIST.......25~30
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, turn off the air conditioner
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.
4. The value should be over 1MΩ.
CONTENTS

—3—
1.3 SPECIFICATIONS
US08C10
POWER SUPPLY
COOLING CAPACITY (Btu/h)
INPUT (W)
RUNNING CURRENT (A)
E.E.R (Btu/w.h)
REFRIGERANT (R410A) CHARGE
OPERATING INDOOR (°F)
TEMPERATURE OUTDOOR (°F)
EVAPORATOR
CONDENSER
FAN, INDOOR
FAN, OUTDOOR
FAN SPEEDS, FAN/COOLING
FAN MOTOR
OPERATION CONTROL
ROOM TEMP. CONTROL
AIR DIRECTION CONTROL
CONSTRUCTION
PROTECTOR COMPRESSOR
FAN MOTOR
POWER CORD
DRAIN SYSTEM
NET WEIGHT (lbs/kg)
DIMENSION (inch)
(W x H x D) (mm)
SLEEVE DIMESION (inch)
(W x H x D) (mm)
SLEEVE DEPTH (inch)
WITH FRONT GRILLE (mm)
1Ø, 115V, 60Hz
8,000
830
7.5
9.6
400g(14.1OZ)
80(DB) 67(WB)
95(DB) 75(WB)
2 ROW 12STACKS
5 2ROW 18STACKS, L-BENDING TYPE
LOUVERED-FIN TYPE
TURBO FAN
PROPELLER TYPE FAN WITH SLINGER-RING
3/3
6 POLES
ELECTRIC
THERMISTOR
VERTICAL LOUVER(RIGHT & LEFT)
HORIZONTAL LOUVER(UP & DOWN)
TOP-DOWN
EXTERNAL OVERLOAD PROTECTOR
INTERNAL THERMAL PROTECTOR
3WIRES WITH GROUNDING
ATTACHMENT PLUG(CORD-CONNECTED TYPE, LCDI)
SPLASHED BY FAN SLINGER
73/33
24 x 1413/32 x 20 3/32
610 x 366 x 499
25 7/8x 15 17/32 x 16 23/32
656 x 394 x 425
20 1/2
521
MODELS REMARK
ITEMS
OPTIONAL
PART
Ø

US10C10
1.3 SPECIFICATIONS
POWER SUPPLY
COOLING CAPACITY (Btu/h)
INPUT (W)
RUNNING CURRENT (A)
E.E.R (Btu/w.h)
REFRIGERANT (R-410A) CHARGE
OPERATING INDOOR (°F)
TEMPERATURE OUTDOOR (°F)
EVAPORATOR
CONDENSER
FAN, INDOOR
FAN, OUTDOOR
FAN SPEEDS, FAN/COOLING
FAN MOTOR
OPERATION CONTROL
ROOM TEMP. CONTROL
AIR DIRECTION CONTROL
CONSTRUCTION
PROTECTOR COMPRESSOR
FAN MOTOR
POWER CORD
DRAIN SYSTEM
NET WEIGHT (lbs/kg)
DIMENSION (inch)
(W x H x D) (mm)
SLEEVE DIMESION (inch)
(W x H x D) (mm)
SLEEVE DEPTH (inch)
WITH FRONT GRILLE (mm)
1Ø, 115V, 60Hz
9,800
1,040
9.6
9.4
445g(15.7OZ)
80 (DB) 67(WB)
95(DB) 75 (WB)
2 ROW 12STACKS
3ROW 18STACKS, L-BENDING TYPE
LOUVERED-FIN TYPE
TURBO FAN
PROPELLER TYPE FAN WITH SLINGER-RING
3/3
6 POLES
ELECTRIC
THERMISTOR
VERTICAL LOUVER(RIGHT & LEFT)
HORIZONTAL LOUVER(UP & DOWN)
TOP-DOWN
EXTERNAL OVERLOAD PROTECTOR
INTERNAL THERMAL PROTECTOR
3WIRES WITH GROUNDING
ATTACHMENT PLUG(CORD-CONNECTED TYPE, LCDI)
SPLASHED BY FAN SLINGER
73/33
24 x 1413/32 x 20 3/32
610 x 366 x 499
25 7/8x 15 17/32 x 16 23/32
656 x 394 x 425
20 1/2
521
MODELS REMARK
ITEMS
OPTIONAL
PART
Ø5.0
—4—

—5—
US10C30
POWER SUPPLY
COOLING CAPACITY (Btu/h)
INPUT (W)
RUNNING CURRENT (A)
E.E.R (Btu/w.h)
REFRIGERANT (R410A) CHARGE
OPERATING INDOOR (°F)
TEMPERATURE OUTDOOR (°F)
EVAPORATOR
CONDENSER
FAN, INDOOR
FAN, OUTDOOR
FAN SPEEDS, FAN/COOLING
FAN MOTOR
OPERATION CONTROL
ROOM TEMP. CONTROL
AIR DIRECTION CONTROL
CONSTRUCTION
PROTECTOR COMPRESSOR
FAN MOTOR
POWER CORD
DRAIN SYSTEM
NET WEIGHT (lbs/kg)
DIMENSION (inch)
(W x H x D) (mm)
SLEEVE DIMESION (inch)
(W x H x D) (mm)
SLEEVE DEPTH (inch)
WITH FRONT GRILLE (mm)
1Ø, 230V/208V, 60Hz
10,000/9,800
1060/1040
9.4/9.4
4.7/5.2
460g(16.2 OZ)
2 ROW 12STACKS
3ROW 18STACKS, L-BENDING TYPE
LOUVERED-FIN TYPE
TURBO FAN
PROPELLER TYPE FAN WITH SLINGER-RING
3/3
6 POLES
ELECTRIC
THERMISTOR
VERTICAL LOUVER(RIGHT & LEFT)
HORIZONTAL LOUVER(UP & DOWN)
TOP-DOWN
EXTERNAL OVERLOAD PROTECTOR
INTERNAL THERMAL PROTECTOR
3WIRES WITH GROUNDING
ATTACHMENT PLUG(CORD-CONNECTED TYPE, LCDI)
SPLASHED BY FAN SLINGER
73/33
24 x 1413/32 x 20 3/32
610 x 366 x 499
25 7/8x 15 17/32 x 16 23/32
656 x 394 x 425
20 1/2
521
MODELS REMARK
ITEMS
OPTIONAL
PART
Ø5.0
80(DB) 67(WB)
95(DB) 75(WB)

US12C10
POWER SUPPLY
COOLING CAPACITY (Btu/h)
INPUT (W)
RUNNING CURRENT (A)
E.E.R (Btu/w.h)
REFRIGERANT (R-410A) CHARGE
OPERATING INDOOR (°F)
TEMPERATURE OUTDOOR (°F)
EVAPORATOR
CONDENSER
FAN, INDOOR
FAN, OUTDOOR
FAN SPEEDS, FAN/COOLING
FAN MOTOR
OPERATION CONTROL
ROOM TEMP. CONTROL
AIR DIRECTION CONTROL
CONSTRUCTION
PROTECTOR COMPRESSOR
FAN MOTOR
POWER CORD
DRAIN SYSTEM
NET WEIGHT (lbs/kg)
DIMENSION (inch)
(W x H x D) (mm)
SLEEVE DIMESION (inch)
(W x H x D) (mm)
SLEEVE DEPTH (inch)
WITH FRONT GRILLE (mm)
1Ø, 230V/208V, 60Hz
11500/11200
1220/1190
5.6/6.0
9.4/9.4
525g(18.0 OZ)
2 ROW 12STACKS
3ROW 18STACKS, L-BENDING TYPE, 1 ROW
LOUVERED-FIN TYPE
TURBO FAN
PROPELLER TYPE FAN WITH SLINGER-RING
3/3
6 POLES
ELECTRIC
THERMISTOR
VERTICAL LOUVER(RIGHT & LEFT)
HORIZONTAL LOUVER(UP & DOWN)
TOP-DOWN
EXTERNAL OVERLOAD PROTECTOR
INTERNAL THERMAL PROTECTOR
3WIRES WITH GROUNDING
ATTACHMENT PLUG(CORD-CONNECTED TYPE, LCDI)
SPLASHED BY FAN SLINGER
73/33
24 x 1413/32 x 20 3/32
610 x 366 x 499
25 7/8x 15 17/32 x 16 23/32
656 x 394 x 425
20 1/2
521
MODELS REMARK
ITEMS
OPTIONAL
PART
80(DB) 67(WB)
95(DB) 75(WB)
—6—

US12C30
POWER SUPPLY
COOLING CAPACITY (Btu/h)
INPUT (W)
RUNNING CURRENT (A)
E.E.R (Btu/w.h)
REFRIGERANT (R-410A) CHARGE
OPERATING INDOOR (°F)
TEMPERATURE OUTDOOR (°F)
EVAPORATOR
CONDENSER
FAN, INDOOR
FAN, OUTDOOR
FAN SPEEDS, FAN/COOLING
FAN MOTOR
OPERATION CONTROL
ROOM TEMP. CONTROL
AIR DIRECTION CONTROL
CONSTRUCTION
PROTECTOR COMPRESSOR
FAN MOTOR
POWER CORD
DRAIN SYSTEM
NET WEIGHT (lbs/kg)
DIMENSION (inch)
(W x H x D) (mm)
SLEEVE DIMESION (inch)
(W x H x D) (mm)
SLEEVE DEPTH (inch)
WITH FRONT GRILLE (mm)
1Ø, 230/208V, 60Hz
11,500/11,200
1,220/1,190
5.6/6.0
9.4/9.4
510g(18.0OZ)
2 ROW 12STACKS
3ROW 18STACKS, L-BENDING TYPE 1 ROW
LOUVERED-FIN TYPE
TURBO FAN
PROPELLER TYPE FAN WITH SLINGER-RING
3/3
6 POLES
ELECTRIC
THERMISTOR
VERTICAL LOUVER(RIGHT & LEFT)
HORIZONTAL LOUVER(UP & DOWN)
TOP-DOWN
EXTERNAL OVERLOAD PROTECTOR
INTERNAL THERMAL PROTECTOR
3WIRES WITH GROUNDING
ATTACHMENT PLUG(CORD-CONNECTED TYPE, LCDI)
SPLASHED BY FAN SLINGER
73/33
24 x 1413/32 x 20 3/32
610 x 366 x 499
25 7/8x 15 17/32 x 16 23/32
656 x 394 x 425
20 1/2
521
MODELS REMARK
ITEMS
OPTIONAL
PART
80(DB) 67(WB)
95(DB) 75(WB)
—7—

US14C30
POWER SUPPLY
COOLING CAPACITY (Btu/h)
INPUT (W)
RUNNING CURRENT (A)
E.E.R (Btu/w.h)
REFRIGERANT (R-410A) CHARGE
OPERATING INDOOR (°F)
TEMPERATURE OUTDOOR (°F)
EVAPORATOR
CONDENSER
FAN, INDOOR
FAN, OUTDOOR
FAN SPEEDS, FAN/COOLING
FAN MOTOR
OPERATION CONTROL
ROOM TEMP. CONTROL
AIR DIRECTION CONTROL
CONSTRUCTION
PROTECTOR COMPRESSOR
FAN MOTOR
POWER CORD
DRAIN SYSTEM
NET WEIGHT (lbs/kg)
DIMENSION (inch)
(W x H x D) (mm)
SLEEVE DIMESION (inch)
(W x H x D) (mm)
SLEEVE DEPTH (inch)
WITH FRONT GRILLE (mm)
1Ø, 230/208V, 60Hz
13,000/12,600
1,530/1,480
7.0/7.5
8.5/8.5
510g(18.0OZ)
2 ROW 12STACKS
3ROW 18STACKS, L-BENDING TYPE,1ROW LOUVERED-FIN TYPE
TURBO FAN
PROPELLER TYPE FAN WITH SLINGER-RING
3/3
6 POLES
ELECTRIC
THERMISTOR
VERTICAL LOUVER(RIGHT & LEFT)
HORIZONTAL LOUVER(UP & DOWN)
TOP-DOWN
EXTERNAL OVERLOAD PROTECTOR
INTERNAL THERMAL PROTECTOR
3WIRES WITH GROUNDING
ATTACHMENT PLUG(CORD-CONNECTED TYPE, LCDI)
SPLASHED BY FAN SLINGER
73/33
24 x 1413/32 x 20 3/32
610 x 366 x 499
25 7/8x 15 17/32 x 16 23/32
656 x 394 x 425
20 1/2
521
MODELS REMARK
ITEMS
OPTIONAL
PART
80(DB) 67(WB)
95(DB) 75(WB)
—8—

—9—
1.4 FEATURES
• Designed for cooling only.
• Powerful and quiet.
• Slide out chassis for the simple installation and service.
1.5 CONTROL LOCATIONS
1.5.1 COOLING ONLY MODEL
• OPERATION
• Built in adjustable 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.
PULL OPEN / PUSH CLOSE
When the air conditioner has been operating in the
cooling and is turned off or set to the fan only position,
wait at least 3 minutes before resetting to the cooling
operation again.
CAUTION

—10—
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 6 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 page 19 in
this manual and on the control box.)
2. DISASSEMBLY INSTRUCTIONS
—Prior to disassembling the unit, make sure that the POWER is off and the power cord is unplugged from the
wall receptacle.
Figure 1
Figure 2
Figure 3