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R
Uni- Fit
Thru-the-Wall Series
Service and Parts
Manual
Thru-the-Wall Series
230 Volts UE10C33 UE12C33
115 Volts UE08C13
Unifit Heat Cool Svc Parts 2010 (05/10)
Unifit. Cool (03/07)
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Air Conditioner Service Manual TABLE OF CONTENTS Safety Precautions .......................................................................................................................................... 3 Operating Instructions ..................................................................................................................................7 Controls................................................................................................................................
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E S ealvF y e n ' t T er I Cool F 1LOW ' Fan F 2H I GH He M atODE Time T r IMER POWER I ' ner ag vy er TEMP Coo FH an ea t T mer TEMP MODE TIMER S F P AE N ED POWER MODE TIMER F POWER Cn oo rg r F 1F 2 L H O W IG H F H aea im TEM F P MODE T MER SP A E N ED POWER F EnS e ra gvy e r TEM FA P N SPEED Cool FF 1LOG W F E S FH an eat Timer 2 H H MODE T IMER S FP AE N ED POWER EnS erlgy FF 12 L H O IG WH 'F aver i E Cn o S eo a rg v lF y ea rn FF 12 L H OT W IGHEMP 'F Heat Timer SP AE NED Safety Prec
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lr FF L 12 H O G IH ' r t i m r E P I SPEE Coo l F12LHOW H ' F EnS e ra gvy e F ra He nat T i me r F T G EM P MODE TI MER S FPA EN E D PO ER En C o ro e g y F IF LH H F S aF rv ae e H n a t T m e r E P MODE I TM ER SA PE NED POW ER CEoS ol F1 F2 H L O W H IG 'F F a Hen a t Tm i er T MAN MODE TIMER D POWER Ene S r av g l er y 12 T EMP MODE T IMER POW ER E ne r lgy OW G I S ave r i TEMP S F P A E N E D Cool F 1 F 2 L H IOW GH ' Fa Hn ea t Time r TEMP MODE TIMER POWER F E Co nS eol r ag vFa y er
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EC e S n a lv ry eg r FF1 L 2 HI W H OG H aet a i m er TE MP M OD E T MER POWER E Sealvy ea FF1 H L 2 O W GH I ' ea E i e rI E P E C o lo E n e Sa rvg y eF ra n FF1 L 2 H OW H IG He M a tODE iTmT erMER TEMP POWER E Cn S oeo r av g ly er F1 F L 2 H OW IG H FH an ea t T m i er TEMP MODE TI MER POWER oo F' F n T I F SP AN EED C noo rgFr n F H MO t D T m T M R TES M FP P A E N ED OW R F' I S FP AE NED ' F SF P A E N ED En rg F S r MODE TIMER POWER Co eoly FF 12 L H OIW GH ' avF ean Time TEMP Heat r
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ECe S n a lr vy e g r FF2 1 HI LW GH O H aea t i m er TE MP M OD E T MER POWER ECe S n a lr vy e g ra F1 L F2H W O HG H ea t i m er TE MP MODE T MER POWER E Cn e S o a lro vg y eF ra n F1 F2 LO HI W GH Hea t iTmer TEMP MODE T MER POWER Coo l FF1 LOW E n Ser av gF y eran 2 HIG T HEMP H eM a tODE T im T er I MER POWER ' E C n o S eo ar lg vF y ea rn Heat Time r TEMA PN I SPEED Cool F1 F2L H OW G I H EnS er ag vF y eH r an eat Timer TEMP MODE TIMER POWER Cool 'F Fan HeM atOD TimerIM R TEMP O R oo F
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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 TIMER again.
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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. TEMPERATURE SETTING temperature of the room. Use this button to automatically control the 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. FAN SPEED Every time you push this button,it advances the setting as follows: {High[F2] Low[F1]} High[F2]
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Cool 'F Energy F1 F2 F 3 L M O H E W IG DH Saver Fan Timer TEMP FAN MODE TIMER SPEED POWER Cool F1 LOW 'F Energy FF 23 M H EID GH Saver Fan Timer TEMP MODE TIMER S FP AE NED POWER Disassembly Instructions Disassembly Instructions — Before the following disassembly, POWER SWITCH is set to OFF and disconnected the power cord. Mechanical Parts 1. 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 si
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Cool F1 LO W ' F Energy FF2 M 3H ED IGH Saver Fa n TEMP Time r MODE TIMER FAN POWER SPEED Disassembly Instructions Air Handling Parts 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) FIG. 4
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Cool 'F F1 LOW F2 MED Energy F3 HIGH Saver Fan Timer TEMP FAN MODE TIMER SPEED POWER Disassembly Instructions 6. SHROUD 1. Remove the fan. (Refer to section 5) 2. Remove the screw which fasten the shroud. 3. Remove the shroud. (See Fig. 9) 4. Re-install the component by referring to the removal procedure, above. FIG. 9 Electrical Parts 7. MOTOR 1. Remove the cabinet. (Refer to section 2) 2. Remove the clamp cord and disconnect a wire housing in control box. (Refer to section 3) 3. Remove the tu
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Cool 'F F1 LOW F2 MED Energy F3 HIGH Saver Fan Timer TEMP FAN MODE TIMER SPEED POWER Cool 'F F1 LOW F2 MED Energy F3 HIGH Saver Fan Timer TEMP FAN MODE TIMER SPEED POWER Disassembly Instructions 10. POWER CORD 1. Remove the control box. (Refer to section 3) 2. Unfold the control box. (Refer to section 9) 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-install the comp
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Cool FF 12 M LOED W 'F Energy F3 HIGH Saver Fan TEMP Timer FAN MODE TIMER SPEED POWER Disassembly Instructions Refrigerating Cycle CAUTION TM Discharge the refrigerant system using Freon Recovery System. If there is no valve to attach the recovery system, install one (such as a WATCO A-1) before vent- TM ing the Freon . Leave the valve in place after servicing the system. 12. CONDENSER 1. Remove the cabinet. (Refer to section 2) 2. Remove the brace and the shroud cover. (Refer to section 4) 3.
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Disassembly Instructions NOTICE — Replacement of the refrigeration cycle. 6. Recharge as follows : 1. When replacing the refrigeration cycle, be sure to TM 1) Refrigeration cycle systems are charged from the discharge the refrigerant system using a Freon High-side. If the total charge cannot be put recovery System. in the High-side, the balance will be put in the If there is no valve to attach the recovery system, suction line through the access valve which you install one (such as a WATCO A-
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Disassembly Instructions Equipment needed: Vacuum pump, Charging cylinder, Manifold gauge, Brazing equipment. Pinch-off tool capa- ble of making a vapor-proof seal, Leak detector, Tubing cutter, Hand Tools to remove components, Service valve. FIG. 17A-Pulling Vacuum FIG 17B-Charging Service Manual 15 COMPOUND GAUGE CONDENSER (HIGH PRESSURE SIDE) MANIFOLD GAUGE B A CAPILLARY TUBE SEE INSETS BELOW EVAPORATOR (LOW PRESSURE SIDE) COMPRESSOR LOW HI A B B A EXTERNAL VACUUM PUMP CHARGING CYLINDER C
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Schematic Diagram Schematic Diagram Wiring Diagram ELECTRIC HEATING MODEL 16 Room Air Conditioner
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Troubleshooting Guide Troubleshooting Guide Piping System CONDENSER COILS FAN CAPILLARY TUBE MOTOR COMPRESSOR TURBO FAN EVAPORATOR COILS Following is a brief description of the important components and their functions in the refrigeration system. Refer to Fig. 18 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 VAPOR INLET SUCTION LIME HOT COMPLETE LIQUID COOL LOW PRESSURE VAPO
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Troubleshooting Guide 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 of cold air circulation Check of outdoor coil Check heat load increase. for smooth flow. (heat exchanger) & the fan operation. U
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Troubleshooting Guide Fails to Start Check of power source. Check of circuit breaker and fuse. Check of control switch Gas leakage of feeler bulb setting. of thermostat Check of control switch. Only compressor fails to Only fan fails to start. start. Improper wiring. Drop of power voltage. Improper thermostat setting Defect of fan motor capacitor. Defect of compressor capacitor. Loose terminal connection. Irregular motor resistance ( ). Check capacitor. Irregular motor insulation ( ). Im
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Troubleshooting Guide COMPLAINT CAUSE REMEDY Fan motor will not run. No power Check voltage at outlet. Correct if none. 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. Fan blade hitting shroud or blower wheel hitting scroll. Realign assembly. Will not r
