Friedrich Uni-Fit Thru-the-Wall Series Manuale utente

Unifit Heat Cool Svc Parts 2010 (05/10)

Thru-the-Wall Series

230 Volts UE10C33 UE12C33

Unifit. Cool (03/07)

Thru-the-Wall Series

Service and Parts

Manual

115 Volts UE08C13

Uni- Fit R

2Room Air Conditioner

Air Conditioner Service Manual

TABLE OF CONTENTS

Safety Precautions ..........................................................................................................................................3

Operating Instructions ..................................................................................................................................7

Controls.................................................................................................................................................... 7

Remote control......................................................................................................................................... 8

Disassembly instructions ............................................................................................................................. 9

Mechanical Parts...................................................................................................................................... 9

Air Handling Parts ...................................................................................................................................10

Electrical Parts ........................................................................................................................................11

Refrigeration Cycle..................................................................................................................................13

Schematic Diagram........................................................................................................................................16

Wiring Diagram........................................................................................................................................16

Troubleshooting Guide ................................................................................................................................17

Piping System .........................................................................................................................................17

Troubleshooting Guide ............................................................................................................................18

Room Air Conditioner Voltage Limits.......................................................................................................21

Product specifications............................................................................... .........................23~25

Exploded Vi ew .............................................................................................................................................26

Replacement Parts List ...............................................................................................................................27~29

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

Service Manual 3

Safety Precautions

To prevent injury to the user or other people and property damage, the following instructions must

be followed.

■Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is

classified by the following indications.

■Meanings of symbols used in this manual are as shown below.

WARNING

CAUTION

This symbol indicates the possibility of death or serious injury.

This symbol indicates the possibility of injury or damage to property only.

WARNING

■Installation

Don’t use a power cord, a plug

or a loose socket which is dam-

aged.

• Otherwise, it may cause a fire or

electrical shock.

Always plug into a grounded

outlet.

• Otherwise, it may cause a fire or

electrical shock.

Do not modify or extend the

power cord length.

• It will cause electric shock or fire

due to heat generation.

Do not disassemble or modify

products.

• It may cause failure and electric

shock.

Be caution when unpacking and

installing.

• Sharp edges may cause injury.

Do not use the power cord near flam-

mable gas or combustibles such as

gasoline, benzene, thinner, etc.

• It may cause explosion or fire.

Be sure not to do.

Be sure to follow the instruction.

MODE TIMER POWER

FAN

SPEED

Fan

Heat

Energy

Saver

Cool

Timer

TEMP

F1LOW

F2HIGH

MODETIMERPOWER

FAN

SPEED

Fan

Heat

Energy

Saver

Cool

Timer

TEMP

F1LOW

F2HIGH

MODETIMERPOWER

FAN

SPEED

Fan

Heat

Energy

Saver

Cool

Timer

TEMP

F1LOW

F2HIGH

MODETIMERPOWER

FAN

SPEED

Fan

Heat

Energy

Saver

Cool

Timer

TEMP

F1LOW

F2HIGH

Gasolin

MODETIMERPOWER

FAN

SPEED

Fan

Heat

Energy

Saver

Cool

Timer

TEMP

F1LOW

F2HIGH

4Room Air Conditioner

Safety Precautions

■Operation

Do not place heavy object on the

power cord and take care so that

the cord should not be pressed.

• There is danger of fire or electric

shock.

Do not share the outlet with

other appliances.

• It will cause electric shock or fire

due to heat generation.

Take the power plug out if neces-

sary, holding the head of the plug

and do not touch it with wet hands.

• Otherwise, it may cause a fire or

electrical shock.

Do not place the power cord

near a heater.

• It may cause fire and electric

shock.

Do not allow water to run into

electric parts.

• It will cause failure of machine or

electric shock.

Use a soft cloth to clean. Do not

use wax, thinner, or a strong

detergent.

• The appearance of the air condi-

tioner may deteriorate, change

color, or develop surface flaws.

Unplug the unit if strange

sounds, odors, or smoke come

from it.

• Otherwise it may cause fire and

electric shock accident.

Do not open the suction inlet

grill of the product during opera-

tion.

• Otherwise, it may electrical

shock and failure.

If water enters the product, turn off the the

power switch of the main body of appliance.

Contact service center after taking the

power-plug out from the socket.

Ventilate the room well when

using this appliance together

with a stove, etc.

• An oxygen shortage may occur.

Turn off the power and breaker

firstly when cleansing the unit.

• Since the fan rotates at high speed

during operation, it may cause

injury.

Turn off the main power switch

when not using it for a long

time.

• Prevent accidental startup and the

possibility of injury.

MODETIMERPOWER

FAN

SPEED

Fan

Heat

Energy

Saver

Cool

Timer

TEMP

F1LOW

F2HIGH

MODETIMERPOWER

FAN

SPEED

Fan

Heat

Energy

Saver

Cool

Timer

TEMP

F1LOW

F2HIGH

MODETIMERPOWER

FAN

SPEED

Fan

Heat

Energy

Saver

Cool

Timer

TEMP

F1LOW

F2HIGH

MODETIMERPOWER

FAN

SPEED

Fan

Heat

Energy

Saver

Cool

Timer

TEMP

F1LOW

F2HIGH

Wax

Thinner

MODE TIMER POWER

FAN

SPEED

Fan

Heat

Energy

Saver

Cool

Timer

TEMP

F1LOW

F2HIGH

MODE TIMER POWER

FAN

SPEED

Fan

Heat

Energy

Saver

Cool

Timer

TEMP

F1LOW

F2HIGH

MODE TIMER POWER

FAN

SPEED

Fan

Heat

Energy

Saver

Cool

Timer

TEMP

F1LOW

F2HIGH

MODETIMERPOWER

FAN

SPEED

Fan

Heat

Energy

Saver

Cool

Timer

TEMP

F1LOW

F2HIGH

MODE TIMER POWER

FAN

SPEED

Fan

Heat

Energy

Saver

Cool

Timer

TEMP

F1LOW

F2HIGH

MODETIMERPOWER

FAN

SPEED

Fan

Heat

Energy

Saver

Cool

Timer

TEMP

F1LOW

F2HIGH

MODETIMERPOWER

FAN

SPEED

Fan

Heat

Energy

Saver

Cool

Timer

TEMP

F1LOW

F2HIGH

Service Manual 5

Safety Precautions

Do not operate or stop the unit

by inserting or pulling out the

power plug.

• It will cause electric shock or fire

due to heat generation.

Do not damage or use an

unspecified power cord.

• It will cause electric shock or fire.

Do not operate with wet hands

or in damp environment.

• It will cause electric shock.

Hold the plug by the head when

taking it out.

• It may cause electric shock and

damage.

When gas leaks, open the win-

dow for ventilation before oper-

ating the unit.

• Otherwise, it may cause explo-

sion, and a fire.

Never touch the metal parts of

the unit when removing the fil-

ter.

• They are sharp and may cause

injury.

Install the product so that the noise or hot wind

from the outdoor unit may not cause any damage

to the neighbors.

• Otherwise, it may cause dispute with the neighbors.

Keep level parallel in installing the product.

• Otherwise, it may cause vibration or water leakage.

MODETIMERPOWER

FAN

SPEED

Fan

Heat

Energy

Saver

Cool

Timer

TEMP

F1LOW

F2HIGH

MODETIMERPOWER

FAN

SPEED

Fan

Heat

Energy

Saver

Cool

Timer

TEMP

F1LOW

F2HIGH

MODETIMERPOWER

FAN

SPEED

Fan

Heat

Energy

Saver

Cool

Timer

TEMP

F1LOW

F2HIGH

MODETIMERPOWER

FAN

SPEED

Fan

Heat

Energy

Saver

Cool

Timer

TEMP

F1LOW

F2HIGH

MODETIMERPOWER

FAN

SPEED

Fan

Heat

Energy

Saver

Cool

Timer

TEMP

F1LOW

F2HIGH

CAUTION

■Installation

6Room Air Conditioner

Safety Precautions

Do not put a pet or house plant

where it will be exposed to

direct air flow.

• It may cause injury.

Do not block the inlet or outlet

of air flow.

• It may cause product failure.

Use a soft cloth to clean. Do not

use wax, thinner, or a strong

detergent.

• The appearance of the air condi-

tioner may deteriorate, change

color, or develop surface flaws.

Do not step on the indoor/out-

door unit and do not put any-

thing on it.

• It may cause an injury through

dropping of the unit or falling

down.

Always insert the filter securely.

Clean it every two weeks.

• Operation without filters will cause

failure.

Do not drink water drained from

air conditioner.

• It contains containments and will

make you sick.

Be cautious not to touch the

sharp edges when installing.

• It may cause injury.

Avoid excessive cooling and

perform ventilation sometimes.

• Otherwise, it may do harm to

your health.

Do not insert the hands or bars

through the air inlet or outlet

during operation.

• Otherwise, it may cause person-

al injury.

■Operation

MODETIMERPOWER

FAN

SPEED

Fan

Heat

Energy

Saver

Cool

Timer

TEMP

F1LOW

F2HIGH

MODETIMERPOWER

FAN

SPEED

Fan

Heat

Energy

Saver

Cool

Timer

TEMP

F1LOW

F2HIGH

MODETIMERPOWER

FAN

SPEED

Fan

Heat

Energy

Saver

Cool

Timer

TEMP

F1LOW

F2HIGH

MODETIMERPOWER

FAN

SPEED

Fan

Heat

Energy

Saver

Cool

Timer

TEMP

F1LOW

F2HIGH

MODETIMERPOWER

FAN

SPEED

Fan

Heat

Energy

Saver

Cool

Timer

TEMP

F1LOW

F2HIGH

MODETIMERPOWER

FAN

SPEED

Fan

Heat

Energy

Saver

Cool

Timer

TEMP

F1LOW

F2HIGH

MODETIMERPOWER

FAN

SPEED

Fan

Heat

Energy

Saver

Cool

Timer

TEMP

F1LOW

F2HIGH

7Room Air Conditioner

Operating Instructions

Controls

FAN SPEED

Every time you push this button,it advances the setting as follows:{High[F2] Low[F1]} High[F2]

REMOTE CONTROL SIGNAL

RECEIVER

TEMPERATURE SETTING

Use this button to automatically control the

temperature of the room

The tmeperature can be set within a range of

60 F to 86 F by increments of 1 F.

。

The setting appears in the display.

POWER

To turn the air conditioner ON,push this button.

To turn the air conditioner OFF,push the button

again.

This button takes priority over any other button.

TIMER

SHUT-OFF TIME

You will usually use shut-off time while you sleep.

If unit is running,use Timer to set number of hours until shut-off.

For your sleeping comfort，once Timer is set，the Temperature

setting will raise 2 F after 30 min，and once again after another

30 min.

。

Push Timer button to advance setting from 1Hour→ 2Hour →...

→12Hours maximum.

START TIME

If unit is off,use Timer to set number of hours before nuit starts.

Push Timer button to advance setting from 1Hour→ 2Hour →...

→12Hours maximum.

MODE

Push this button to shift mode of operation from COOL → MONEY SAVER→ FAN ONLY→HEAT

COOL:

Fan runs continually for normal cooling operation.

MONEY SAVER:

The fan stops when the compressor stops cooling.Approximately every 3 minutes the fan will turn on and the nuit will

check the room air temperature to determine if cooling is needed.

FAN ONLY:

Fan-only operation.

HEAT:

Fan runs continually for normal heating operation.

AUTO RESTART

When power is restored after an electrical power failure,the unit will begin to run at its last setting.

Service Manual 8

REMOTE CONTROL

POWER

To turn the air conditioner ON,push this button.

To turn the air conditioner OFF,push the button again.

This button takes priority over any other button.

Use this button to automatically control the temperature of the room.

The tmeperature can be set within a range of

increments of 1 F.

。

The setting appears in the display.

60 F to 86 F by

。

TEMPERATURE SETTING

FAN SPEED

Every time you push this button,it advances the setting as follows:

Low[F1]} High[F2]

{High[F2]

TIMER

SHUT-OFF TIME

You will usually use shut-off time while you sleep.

If unit is running,use Timer to set number of hours until shut-off.

For your sleeping comfort，once Timer is set，the Temperature setting will

，

and once again after another 30 min.

。

raise 2 F after 30 min

Push Timer button to advance setting from 1Hour→ 2Hour →...

→12Hours maximum.

START TIME

If unit is off,use Timer to set number of hours before nuit starts.

Push Timer button to advance setting from 1Hour→ 2Hour →...

→12Hours maximum.

MODE

Push this button to shift mode of operation from COOL → MONEY SAVER→ FAN ONLY→HEAT

COOL:

Fan runs continually for normal cooling operation.

MONEY SAVER:

The fan stops when the compressor stops cooling.Approximately every 3 minutes the fan will turn on and the nuit will

check the room air temperature to determine if cooling is needed.

FAN ONLY:

Fan-only operation.

HEAT:

Fan runs continually for normal heating operation.

CAUTION

When the air conditioner has been performed its

cooling or feating operation and is turned off or

set to the fan position，wait at 3 minutes

before resetting to the cooling operation again.

A slight heat odor may come from the nuit

when first switching to HEAT after the

cooling season is over.This odor,caused

by fine duct particles on the heater,will

disappear quickly.This is harmless.

Service Manual 9

Disassembly Instructions

Mechanical Parts

—Before the following disassembly, POWER SWITCH is set to OFF and disconnected the power cord.

FRONT GRILLE

1. Open the inlet grille upward or 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. 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.

3. CONTROL BOX

1. Remove the front grille. (Refer to section 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 24 in this

manual and on the control box.)

FIG. 1

FIG. 3

FIG. 2

MODE TIMER POWER

FAN

SPEED

Fan

Energy

Saver

Cool

Timer

TEMP

F1LOW

F2MED

F3HIGH

MODE TIMER POWER

FAN

SPEED

Fan

Heat

Energy

Saver

Cool

Timer

TEMP

F1LOW

F2HIGH

MODE TIMER POWER

FAN

SPEED

Fan

Heat

Energy

Saver

Cool

Timer

TEMP

F1LOW

F2HIGH

MODETIMERPOWER

FAN

SPEED

Fan

Energy

Saver

Cool

Timer

TEMP

F1LOW

F2MED

F3HIGH

10 Room Air Conditioner

Disassembly Instructions

4. ORIFICE, HEATER ASSY AND TURBO FAN

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

2. Remove the cabinet. (Refer to section 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. 28, at Electric Heater Model only)

6. Remove the 4 screws which fasten the orifice. (See

Fig. 5)

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

8. Remove the clamp which secures the turbo fan with

plier. (See Fig. 6)

9. Remove the turbo fan with plier or your hand with-

out touching blades. (See Fig. 7)

10. Re-install the components by referring to the

removal procedure, above.

5. FAN

1. Remove the cabinet. (Refer to section 2)

2. Remove the brace and shroud cover.

(Refer to section 4)

3. Remove the 6 screws which fasten the condenser.

4. Move the condenser sideways carefully.

5. Remove the clamp which secures the fan.

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

7. Re-install the components by referring to the removal

procedure, above.

Air Handling Parts

MODE TIMER POWER

FAN

SPEED

Fan

Energy

Saver

Cool

Timer

TEMP

F1LOW

F2MED

F3HIGH

FIG. 4

FIG. 5

FIG. 6

FIG. 7

FIG. 8

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