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2.4 REFRIGERATION CYCLE

2.4.1 CONDENSER

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

(Refer to section 2.2.1)

3. Remove the 7 screws which fasten the condenser.
4. After discharging the refrigerant completely into a

Freon

TM

Recovery System, unbraze the

interconnecting tube at the condenser
connections.

5. Remove the condenser.
6. Re-install the components by referring to the notes

– on pages 11-13. (See Fig. 15)

2.4.2 EVAPORATOR

1. Remove the cabinet. (Refer to section 2.1.2)
2. Discharge the refrigerant completely – into a

Freon

TM

Recovery System.

3. Remove the 2 screws which fasten the evaporator

at the left side and the right side.

4. Move the evaporator to the side carefully and then

unbraze the interconnecting tube at the evaporator
connectors.

5. Remove the evaporator.
6. Re-install the components by referring to the notes

– on pages 11-13. (See Fig. 16)

2.4.3 CAPILLARY TUBE

1. Remove the cabinet. (Refer to section 2.1.2)
2. After discharging the refrigerant completely – into

a Freon

TM

Recovery System, unbraze the

interconnecting tube at the capillary tube.

3. Remove the capillary tube.
4. Re-install the components by referring to the notes

– on page 11-13.

Figure 15

Figure 16

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.

CAUTION

Summary of Contents for Thru-the-Wall Series

Page 1: ...Unifit Cool 04 06 Thru the Wall Series Thru the Wall Series Service and Parts Manual 115 Volts US08B US10B US12B 230 Volts US10B US12B...

Page 2: ...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...

Page 3: ...W x H x D mm SLEEVE DEPTH inch WITH FRONT GRILLE mm 1 115V 60Hz 8 000 9 800 11 500 830 1 110 1 310 7 5 10 2 12 0 9 6 8 8 9 4 540g 19 1OZ 475g 16 8OZ 485g 17 1OZ 26 7 DB 19 4 WB 35 DB 23 9 WB 2 ROW 12...

Page 4: ...1 040 1 250 1 210 4 7 5 2 5 8 6 2 9 4 9 4 9 4 9 4 490g 17 3OZ 475g 16 8OZ 26 7 DB 19 4 WB 35 DB 23 9 WB 2 ROW 12STACKS 3 ROW 12STACKS 2ROW 17STACKS L BENDING TYPE TURBO FAN PROPELLER TYPE FAN WITH SL...

Page 5: ...unning 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 bu...

Page 6: ...e 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 resi...

Page 7: ...ecures 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 R...

Page 8: ...move the cabinet Refer to section 2 1 2 2 Discharge the refrigerant system using a FreonTM Recovery System Install a valve for recovery before venting the Freon Remove the valve when finished 3 Discon...

Page 9: ...val procedure above Use only one ground marked hole for ground connection 8 If the supply cord of this appliance is damaged it must be replaced with the factory authorized and specified cord 2 3 5 ELE...

Page 10: ...screws which fasten the evaporator at the left side and the right side 4 Move the evaporator to the side carefully and then unbraze the interconnecting tube at the evaporator connectors 5 Remove the...

Page 11: ...ady 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 the High side the balance will be put in the suction line...

Page 12: ...r proof seal Leak detector Tubing cutter Hand Tools to remove components Service valve A COMPOUND GAUGE EVAPORATOR LOW PRESSURE SIDE COMPRESSOR CAPILLARY TUBE CONDENSER HIGH PRESSURE SIDE SEE INSETS B...

Page 13: ...fer to Fig 18 to follow the refrigeration cycle and the flow of the refrigerant in the cooling cycle MOTOR COMPRESSOR OIL LIQUID REFRIGERANT CAPILLARY TUBE OUTSIDE COOLING AIR FOR REFRIGERANT PASS THR...

Page 14: ...ration 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 Unexpe...

Page 15: ...fan motor Regular but fails to start Replacement of compressor locking of rotor metal Improper thermostat setting Loose terminal connection Improper wiring Irregular motor resistance Irregular motor i...

Page 16: ...bearings if motor shaft will not rotate replace the motor Check voltage See limits on page 17 If not within limits call an electrician Test capacitor Check bearings Does the fan blade rotate freely I...

Page 17: ...y refer to the wiring diagram for terminal identification Replace the switch if circuit is open Check the capacitor Replace if not within 10 of manufacturers rating Replace if shorted open or damaged...

Page 18: ...ompressor to cycle Straighten the fins or replace the coil Test capacitor Check the terminals If loose repair or replace Check the system for a restriction If restricted clean or replace Close if open...

Page 19: ...2 67300013 67300015 67300015 1 346811 FAN MOTOR 67303021 67303022 67303023 67303024 67303025 1 W0CZZ CAPACITOR 67300710 67300717 67300717 67300708 67300708 1 567502 OVERLOAD PROTECTOR 67301406 6730140...

Page 20: ...3230 268712 268714 W6631 267110 W0CZZ 567502 554160 550140 349600 559010 W48602 359012 352380 346811 147900 554031 149980 352115 35211A 130410 435300 435301 435301 238310 237200 749180 147582 1 147581...

Page 21: ...BLY DISPLAY 1 EA 237200 US08B10A A 67305506 3720A20251A PANEL CONTROL 1 EA 238310 US08B10A A 67500114 3831A10037E ESCUTCHEON 1 EA W48602 US08B10A A 67302500 3H02932B CLAMP SPRING 1 EA 359012 US08B10A...

Page 22: ...3720A20251A PANEL CONTROL 1 EA 238310 US10B10A A 67500114 3831A10037E ESCUTCHEON 1 EA W48602 US10B10A A 67302500 3H02932B CLAMP SPRING 1 EA 359012 US10B10A A 67302607 5900A20009A FAN TURBO 1 EA 349480...

Page 23: ...3720A20251A PANEL CONTROL 1 EA 238310 US12B10A A 67500114 3831A10037E ESCUTCHEON 1 EA W48602 US12B10A A 67302500 3H02932B CLAMP SPRING 1 EA 359012 US12B10A A 67302607 5900A20009A FAN TURBO 1 EA 349480...

Page 24: ...A A 67302500 3H02932B CLAMP SPRING 1 EA 359012 US10B30A A 67302607 5900A20009A FAN TURBO 1 EA 349480 US10B30A A 67303409 4948A20045A ORIFICE 1 EA 559010 US10B30A A 67303202 5900AR1173A FAN ASSEMBLY AX...

Page 25: ...3720A20251A PANEL CONTROL 1 EA 238310 US12B30A A 67500114 3831A10037E ESCUTCHEON 1 EA W48602 US12B30A A 67302500 3H02932B CLAMP SPRING 1 EA 359012 US12B30A A 67302607 5900A20009A FAN TURBO 1 EA 349480...

Page 26: ...06 Printed in the U S A Post Office Box 1540 4200 N Pan Am Expressway San Antonio Texas 78295 1540 210 357 4400 FAX 210 357 4480 FRIEDRICH AIR CONDITIONING CO Visit our web site at www friedrich com P...

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