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Test condition *3, *4 AHRI Indoor air condition (°F) Outdoor air condition (°F) Mode Test 210/240 Dry bulb Wet bulb Dry bulb Wet bulb “A-Full” Cooling Steady State (75) at rated compressor speed “B-Full” Cooling Steady State (65) at rated compressor speed SEER “B-Low”...
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OUTLINES AND DIMENSIONS MUZ-GS09NA MUZ-GS09NAH MUZ-GS09NAHZ MUY-GS09NA MUZ-GS12NA MUZ-GS12NAH MUZ-GS12NAHZ MUY-GS12NA MUZ-GS15NA MUZ-GS15NAH MUZ-GS15NAHZ MUY-GS15NA Unit: inch REQUIRED SPACE 4 in. (100 mm) or more when front and sides of the unit are clear (GS09/12/15NA) (GS09/12/15NAH, GS09/12/15NAHZ) When any 2 sides of left, right...
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MUZ-GS18NA MUZ-GS18NAH MUZ-GS18NAHZ MUY-GS18NA MUZ-GS24NA MUZ-GS24NAH MUZ-GS24NAHZ MUY-GS24NA MUZ-GS30NA MUZ-GS30NAH MUY-GS30NA MUZ-GS30NA2 MUZ-GS30NAH2 MUY-GS30NA2 MUZ-GS36NA MUZ-GS36NAH MUY-GS36NA MUZ-GS36NA2 MUZ-GS36NAH2 MUY-GS36NA2 Unit: inch REQUIRED SPACE 4 in OR MORE. 14 in OR MORE. 16-7/16 AIR IN ↓ DRAIN HOLE ø1-21/32 → 20 in OR MORE.
MUZ-GS30NA2 MUZ-GS30NAH2 = 816 CFM = 816 CFM Airflow Airflow Outdoor intake air WB temperature (°F) Outdoor intake air WB temperature (°F) MUZ-GS36NA2 MUZ-GS36NAH2 Airflow = 816 CFM Airflow = 816 CFM Outdoor intake air WB temperature (°F) Outdoor intake air WB temperature (°F) This value of frequency is not the same as the actual frequency in operating.
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7-3. CONDENSING PRESSURE Cooling Data are based on the condition of indoor humidity 50 %. Air flow should be set to High speed. MUZ-GS09NA MUZ-GS09NAH MUY-GS09NA (psig) (psig) (°F) (°F) 95 100 105 110 115 95 100 105 110 115...
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Heating Data are based on the condition of outdoor humidity 75%. Air flow should be set to High speed. Data are for heating operation without any frost. MUZ-GS09NA MUZ-GS09NAH (psig) (psig) (°F) (°F) Outdoor ambient temperature Outdoor ambient temperature MUZ-GS09NAHZ...
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MUZ-GS12NA MUZ-GS12NAH (psig) (psig) (°F) (°F) Outdoor ambient temperature Outdoor ambient temperature MUZ-GS12NAHZ (psig) (psig) (°F) (°F) Outdoor ambient temperature Outdoor ambient temperature MUZ-GS15NA MUZ-GS15NAH (psig) (psig) (°F) (°F) Outdoor ambient temperature Outdoor ambient temperature MUZ-GS15NAHZ (psig) (psig) (°F) (°F) Outdoor ambient temperature Outdoor ambient temperature OBH875B...
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MUZ-GS18NA MUZ-GS18NAH (psig) (psig) (°F) (°F) Outdoor ambient temperature Outdoor ambient temperature MUZ-GS18NAHZ (psig) (psig) (°F) (°F) Outdoor ambient temperature Outdoor ambient temperature MUZ-GS24NA MUZ-GS24NAH (psig) (psig) (°F) (°F) Outdoor ambient temperature Outdoor ambient temperature MUZ-GS24NAHZ (psig) (psig) (°F) (°F) Outdoor ambient temperature Outdoor ambient temperature OBH875B...
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MUZ-GS30NA MUZ-GS30NAH (psig) (psig) (°F) (°F) Outdoor ambient temperature Outdoor ambient temperature MUZ-GS36NA MUZ-GS36NAH (psig) (psig) (°F) (°F) Outdoor ambient temperature Outdoor ambient temperature MUZ-GS30NA2 MUZ-GS30NAH2 (psig) (psig) (°F) (°F) Outdoor ambient temperature Outdoor ambient temperature MUZ-GS36NA2 MUZ-GS36NAH2 (psig) (psig) (°F) (°F) Outdoor ambient temperature...
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7-5. CAPACITY AND INPUT CORRECTION BY INVERTER OUTPUT FREQUENCY MUZ-GS09NA MUZ-GS09NAH MUY-GS09NA MUZ-GS09NA MUZ-GS09NAH Correction of Cooling capacity Correction of Cooling total input Correction of Heating capacity Correction of Heating total input (Hz) (Hz) (Hz) (Hz) The operational frequency of compressor...
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MUZ-GS15NA MUZ-GS15NAH MUY-GS15NA MUZ-GS15NA MUZ-GS15NAH Correction of Cooling capacity Correction of Cooling total input Correction of Heating capacity Correction of Heating total input (Hz) (Hz) (Hz) (Hz) The operational frequency of compressor The operational frequency of compressor The operational frequency of compressor The operational frequency of compressor MUZ-GS15NAHZ Correction of Cooling capacity...
MUZ-GS24NA MUZ-GS24NAH MUY-GS24NA MUZ-GS24NA MUZ-GS24NAH Correction of Cooling capacity Correction of Cooling total input Correction of Heating capacity Correction of Heating total input (Hz) (Hz) (Hz) (Hz) The operational frequency of compressor The operational frequency of compressor The operational frequency of compressor The operational frequency of compressor MUZ-GS24NAHZ Correction of Cooling capacity...
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MUZ-GS30NA MUZ-GS30NAH MUY-GS30NA Correction of Cooling capacity Correction of Cooling total input Correction of Heating total input Correction of Heating capacity (Hz) (Hz) (Hz) (Hz) The operational frequency of compressor The operational frequency of compressor The operational frequency of compressor The operational frequency of compressor MUZ-GS36NA MUZ-GS36NAH MUY-GS36NA (208V) Correction of Cooling capacity...
MUZ-GS30NA2 MUZ-GS30NAH2 MUY-GS30NA2 MUZ-GS30NA2 MUZ-GS30NAH2 Correction of Cooling capacity Correction of Cooling total input Correction of Heating capacity Correction of Heating total input (Hz) (Hz) (Hz) (Hz) The operational frequency of compressor The operational frequency of compressor The operational frequency of compressor The operational frequency of compressor MUZ-GS36NA2 MUZ-GS36NAH2 MUY-GS36NA2 MUZ-GS36NA2 MUZ-GS36NAH2...
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ACTUATOR CONTROL MUZ-GS09NA MUZ-GS09NAH MUZ-GS09NAHZ MUY-GS09NA MUZ-GS12NA MUZ-GS12NAH MUZ-GS12NAHZ MUY-GS12NA MUZ-GS15NA MUZ-GS15NAH MUZ-GS15NAHZ MUY-GS15NA MUZ-GS18NA MUZ-GS18NAH MUZ-GS18NAHZ MUY-GS18NA MUZ-GS24NA MUZ-GS24NAH MUZ-GS24NAHZ MUY-GS24NA MUZ-GS30NA MUZ-GS30NAH MUY-GS30NA MUZ-GS30NA2 MUZ-GS30NAH2 MUY-GS30NA2 MUZ-GS36NA MUZ-GS36NAH MUY-GS36NA MUZ-GS36NA2 MUZ-GS36NAH2 MUY-GS36NA2 8-1. OUTDOOR FAN MOTOR CONTROL The fan motor turns ON/OFF, interlocking with the compressor.
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TROUBLESHOOTING MUZ-GS09NA MUZ-GS09NAH MUZ-GS09NAHZ MUY-GS09NA MUZ-GS12NA MUZ-GS12NAH MUZ-GS12NAHZ MUY-GS12NA MUZ-GS15NA MUZ-GS15NAH MUZ-GS15NAHZ MUY-GS15NA MUZ-GS18NA MUZ-GS18NAH MUZ-GS18NAHZ MUY-GS18NA MUZ-GS24NA MUZ-GS24NAH MUZ-GS24NAHZ MUY-GS24NA MUZ-GS30NA MUZ-GS30NAH MUY-GS30NA MUZ-GS30NA2 MUZ-GS30NAH2 MUY-GS30NA2 MUZ-GS36NA MUZ-GS36NAH MUY-GS36NA MUZ-GS36NA2 MUZ-GS36NAH2 MUY-GS36NA2 10-1. CAUTIONS ON TROUBLESHOOTING 1. Before troubleshooting, check the following 1) Check the power supply voltage.
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10-2. FAILURE MODE RECALL FUNCTION Outline of the function This air conditioner can memorize the abnormal condition which has occurred once. Even though LED indication listed on the troubleshooting check table (10-3.) disappears, the memorized failure details can be recalled. 1.
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2. Flow chart of the detailed outdoor unit failure mode recall function Operational procedure The outdoor unit might be abnormal. Check if outdoor unit is abnormal according to the following procedures. Make sure that the remote controller is set to the failure mode recall function. *1.
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NOTE: Blinking patterns of this mode differ from the ones 3. Table of outdoor unit failure mode recall function of TROUBLESHOOTING CHECK TABLE (10-3.). The left lamp of the Indoor/outdoor Outdoor unit OPERATION Abnormal point LED indication unit failure Condition Remedy failure mode INDICATOR...
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NOTE: Blinking patterns of this mode differ from the ones of TROUBLESHOOTING CHECK TABLE (10-3.). The left lamp of the Indoor/outdoor Outdoor unit OPERATION Abnormal point LED indication unit failure Condition Remedy failure mode INDICATOR (Failure mode/protection) (Outdoor P.C. board) mode recall recall function lamp...
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10-3. TROUBLESHOOTING CHECK TABLE Abnormal point/ Symptom LED indication Condition Remedy Condition Outdoor unit 1-time blink every Outdoor power Overcurrent protection cut-out operates 3 consecutive times • Reconnect connector of does not 2.5 seconds system within 1 minute after the compressor gets started. compressor.
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Abnormal point/ Symptom LED indication Condition Remedy Condition Outdoor unit 1-time blink Deceleration of the GS09/12/15/18 When the input current exceeds approximately The unit is normal, but check the operates. 2.5 seconds OFF operational 10A (GS09)/10.5A (GS12/15/18), compressor following. • Check if indoor filters are frequency of the frequency lowers.
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Part name Check method and criterion Figure Measure the resistance using a multimeter. [Temperature: 14 - 104°F (-10 - 40°C)] Normal (Ω) Color of lead wire Expansion valve coil RED – ORN (LEV) RED – WHT (+12V) 37 - 54 RED –...
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10-5. TROUBLESHOOTING FLOW A How to check inverter/compressor Disconnect the connector between the compressor and the power module (IC700). Check the voltage between terminals. See 10-5. “Check of open phase”. Are the voltages balanced? Replace the inverter P.C. board. Check the compressor. See 10-5.
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D Check of compressor winding ●Disconnect the connector between the compressor and the power module (IC700), and measure the resistance between the compressor terminals. <<Measurement point>> At 3 points *Measure the resistance between the lead wires at 3 points. BLK-WHT BLK-RED WHT-RED <<Judgement>>...
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G Check of outdoor thermistors Disconnect the connector of thermistor in the inverter P.C. board (see below table), and measure the resistance of thermistor. Replace the thermistor except RT64. Is the resistance of thermistor normal? When RT64 is abnormal, replace the inverter P.C. (Refer to 10-6.1.) board.
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H Check of R.V. coil MUZ-GS09/12/15/18 * First of all, measure the resistance of R.V. coil to check if the coil is defective. Refer to 10-4. * In case CN721 is disconnected or R.V. coil is open, voltage is generated between the terminal pins of the connector although no signal is being transmitted to R.V.
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I Check of outdoor fan motor Disconnect the connectors CN931 and CN932 from the inverter P.C. board. Check the connection between the connector CN931 and CN932. Is the resistance between each termi- nal of outdoor fan motor normal? (Refer to 10-4.) Disconnect CN932 from the inverter P.C.
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J Check of power supply Disconnect the connector between the compressor and the power module (IC700). Rectify indoor/outdoor Turn ON power supply and press the emergency operation switch. connecting wire. Does the left lamp of the Is there voltage 208/230 V AC Replace the indoor OPERATION INDICATOR lamp on between the indoor terminal...
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K Check of LEV (Expansion valve) Turn ON the power supply. <Preparation of the remote controller> MSZ-GS24NA While pressing both Operation select button and MSY-GS24NA TEMP / TOO COOL button on the remote controller MSZ-GS06/09/12/15NA MSZ-GS18NA MSZ-GS30/36NA2 MSZ-GS30/36NA at the same time, press RESET button. MSY-GS30/36NA2 MSY-GS09/12/15NA MSY-GS18NA...
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L Check of inverter P.C. board Check the outdoor fan motor. (Refer to 10-5. .) Is the fuse (F901) blown on the inverter P.C. board? Check the connection of the connectors (CN931, CN932) of the outdoor fan motor. If the connection is poor, make it correct. Operate the outdoor unit by starting EMERGENCY OPERATION.
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M How to check miswiring and serial signal error MUZ-GS09/12/15NA Turn OFF the power supply. MUY-GS09/12/15NA Is there rated voltage in the power supply? Check the power supply. Turn ON the power supply. Is there rated voltage between outdoor terminal block S1 and S2? Check the wiring.
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MUZ-GS18/24NA MUY-GS18/24NA Turn OFF the power supply. Is there rated voltage in the power supply? Check the power supply. Turn ON the power supply. Is there rated voltage between outdoor terminal block S1 and S2? Check the wiring. Press the emergency operation switch once. Does the OPERATION INDICATOR lamp light up? <Confirmation of the power to the indoor unit>...
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MUZ-GS30/36NA MUY-GS30/36NA MUZ-GS30/36NA2 Turn OFF the power supply. MUY-GS30/36NA2 Is there rated voltage AC in Check the power supply. the power supply? Turn ON the power supply. Is there rated voltage between outdoor terminal block S1 and Check the wiring. Press the emergency operation switch once.
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N Check of defrost heater MUZ-GS09NAH MUZ-GS09NAHZ MUZ-GS12NAH MUZ-GS12NAHZ MUZ-GS15NAH MUZ-GS15NAHZ MUZ-GS18NAH MUZ-GS18NAHZ MUZ-GS24NAH MUZ-GS24NAHZ MUZ-GS30NAH MUZ-GS30NAH2 MUZ-GS36NAH MUZ-GS36NAH2 Check the following points before checking electric continuity. 1. Does the resistance of ambient temperature thermistor have the characteristics? Refer to 10-6.1. 2.
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P Electromagnetic noise enters into TV sets or radios Is the unit grounded? Ground the unit. Is the distance between the antennas Extend the distance between the antennas and and the indoor unit within 9.91 ft. (3m), the indoor unit, and/or the antennas and the out- or is the distance between the antennas door unit.
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Q Check of compressor protector MUZ-GS09NA MUZ-GS09NAH MUZ-GS09NAHZ MUY-GS09NA MUZ-GS12NA MUZ-GS12NAH MUZ-GS12NAHZ MUY-GS12NA MUZ-GS15NA MUZ-GS15NAH MUZ-GS15NAHZ MUY-GS15NA MUZ-GS18NA MUZ-GS18NAH MUZ-GS18NAHZ MUY-GS18NA MUZ-GS24NA MUZ-GS24NAH MUZ-GS24NAHZ MUY-GS24NA MUZ-GS30NA2 MUZ-GS30NAH2 MUY-GS30NA2 MUZ-GS36NA2 MUZ-GS36NAH2 MUY-GS36NA2 Disconnect the connector of compressor protector in the inverter P.C. board, and check the conduc- tion of compressor protector.
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10-6. TEST POINT DIAGRAM AND VOLTAGE 1. Inverter P.C. board MUZ-GS09NA MUZ-GS09NAH MUZ-GS09NAHZ MUY-GS09NA MUZ-GS12NA MUZ-GS12NAH MUZ-GS12NAHZ MUY-GS12NA MUZ-GS15NA MUZ-GS15NAH MUZ-GS15NAHZ MUY-GS15NA Back side of unit DB61 Smoothing Smoothing Fuse (F801) R.V.coil (CN721) Fuse (F701) 208/230 V AC 260 - 370 V DC...
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MUZ-GS18NA MUZ-GS18NAH MUY-GS18NA Smoothing Smoothing Smoothing R.V.coil Defrost Back side of unit capacitor capacitor capacitor (CN721) heater (C61) (C62) (C63) 230 V AC (CN722) DB61 230 V AC 260 - 370 V DC Fuse (F801) Fuse (F701) T3.15AL250V T3.15AL250V Fuse (F62) 15 A 250V Output to drive compressor...
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MUZ-GS18NAHZ MUZ-GS24NA MUZ-GS24NAH MUZ-GS24NAHZ MUY-GS24NA MUZ-GS30NA MUZ-GS30NAH MUY-GS30NA MUZ-GS36NA MUZ-GS36NAH MUY-GS36NA Smoothing Smoothing Smoothing Fuse (F880) Output to drive Heater (CN601) Capacitor Capacitor Capacitor T3.15AL250V outdoor fan motor 208/230 V AC Back side of unit (CB3) (CB1) (CB2) (CN932) 208/230 V AC R.V.
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MUZ-GS30NA2 MUZ-GS30NAH2 MUY-GS30NA2 MUZ-GS36NA2 MUZ-GS36NAH2 MUY-GS36NA2 Smoothing Smoothing Smoothing Output to drive Capacitor Capacitor Capacitor Fuse (F880) outdoor fan motor Heater (CN601) Back side of unit (CB1) (CB2) (CB3) T3.15AL250V (CN932) 230 V AC Fuse (F601) T3.15AL250V 208/230 V AC Fuse (F62) 15 A 250 V R.V.
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Hold the sleeve, and Pull the terminal while pull out the terminal slowly. pushing the locking lever. Locking lever Connector 11-1. MUZ-GS09NA MUZ-GS09NAH MUZ-GS09NAHZ MUY-GS09NA MUZ-GS12NA MUZ-GS12NAH MUZ-GS12NAHZ MUY-GS12NA MUZ-GS15NA MUZ-GS15NAH MUZ-GS15NAHZ MUY-GS15NA : Indicates the visible parts in the photos/figures.
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OPERATING PROCEDURE PHOTOS/FIGURES Screws of the Screw of the Photo 4 Photo 5 conduit cover conduit plate 2. Removing the inverter assembly, inverter P.C. board Photo 6 (1) Remove the top panel, cabinet and service panel. (Refer to section 1.) Screw of the heat sink (2) Disconnect the lead wire to the reactor and the following support and the separator...
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OPERATING PROCEDURE PHOTOS/FIGURES 4. Removing the discharge temperature thermistor, Photo 8 defrost thermistor, outdoor heat exchanger tempera- ture thermistor and ambient temperature thermistor Screw of the (1) Remove the top panel, cabinet and service panel. (Refer to R.V. coil (MUZ) section 1.) (2) Disconnect the lead wire to the reactor and the following connectors:...
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OPERATING PROCEDURE PHOTOS/FIGURES 5. Removing outdoor fan motor Photo 10 (1) Remove the top panel, cabinet and service panel. (Refer to Screws of the outdoor fan motor section 1.) (2) Disconnect the following connectors: <Inverter P.C. board> CN931, CN932 (Fan motor) (3) Remove the propeller fan nut.
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11-2. MUZ-GS18NA MUZ-GS18NAH MUZ-GS18NAHZ MUY-GS18NA MUZ-GS24NA MUZ-GS24NAH MUZ-GS24NAHZ MUY-GS24NA NOTE: Turn OFF the power supply before disassembly. OPERATING PROCEDURE PHOTOS/FIGURES 1. Removing the cabinet Photo 1 Screws of the top panel (1) Remove the screws of the service panel. (2) Remove the screws of the top panel. (3) Remove the screw of the valve cover.
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OPERATING PROCEDURE PHOTOS/FIGURES 2. Removing the inverter assembly and inverter P.C. Photo 5 board (MUZ-GS18NA MUZ-GS18NAH MUY-GS18NA) (1) Remove the top panel, cabinet and service panel. (Refer to Screw of the heat sink section 1.) support and the separator (2) Disconnect the lead wire to the reactor and the following connectors: <Inverter P.C.
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OPERATING PROCEDURE PHOTOS/FIGURES * Connection procedure when attaching the inverter P.C. Photo 7 board (Photo 8) 1. Attach the heat sink support to the P.C. board support. 2. Connect the lead wires of the expansion valve coil to the connector on the inverter P.C. board. Pull the lead wires of the expansion valve coil toward you and put them on the left hook on the P.C.
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OPERATING PROCEDURE PHOTOS/FIGURES 3. Removing the inverter assembly, inverter P.C. board Photo 9 and fuse P.C. board (Other models) Screw of the heat Screw of the P.C. board 3-1. Removing the inverter assembly and inverter P.C. board sink support and the support and the motor (1) Remove the top panel, cabinet and service panel.
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OPERATING PROCEDURE PHOTOS/FIGURES * Connection procedure when attaching the inverter P.C. Photo 11 board (Photo 12,13) 1. Attach the heat sink support to the P.C. board support. 2. Hook the lead wires of the compressor, the reactor and the P.C. board to each hooks on the heat sink support as shown Photo 12.
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OPERATING PROCEDURE PHOTOS/FIGURES 3-2. Removing the fuse P.C. board Photo 14 (1) Remove the top panel, cabinet and service panel. (Refer to Support section 1.) CN65 Fuse P.C. board (2) Disconnect the lead wire to the reactor and the inverter P.C. board connectors.
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OPERATING PROCEDURE PHOTOS/FIGURES 4. Removing the discharge temperature thermistor, Photo 16 defrost thermistor, outdoor heat exchanger tempera- MUZ-GS•NAHZ ture thermistor and ambient temperature thermistor Outdoor heat exchanger (1) Remove the cabinet and panels. (Refer to section 1.) temperature thermistor (2) Disconnect the lead wire to the reactor and the following connectors: <Inverter P.C.
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OPERATING PROCEDURE PHOTOS/FIGURES 6. Removing the compressor and 4-way valve Photo 18 (1) Remove the cabinet and panels. (Refer to section 1.) Brazed part of (2) Remove the inverter assembly. (Refer to section 2 (MUZ- the discharge pipe GS18NA, MUZ-GS18NAH, MUY-GS18NA), section 3-1 Discharge (Other models).) temperature...
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11-3. MUZ-GS30NA MUZ-GS30NAH MUY-GS30NA MUZ-GS36NA MUZ-GS36NAH MUY-GS36NA NOTE: Turn OFF the power supply before disassembly. OPERATING PROCEDURE PHOTOS/FIGURES 1. Removing the cabinet Photo 1 Screws of the top panel (1) Remove the screws of the service panel. (2) Remove the screws of the top panel. (3) Remove the screw of the valve cover.
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OPERATING PROCEDURE PHOTOS/FIGURES 2. Removing the inverter assembly and inverter P.C. Photo 5 board (1) Remove the top panel, cabinet and service panel. (Refer to Screw of the P.C. board section 1.) Screw of the heat sink support and the motor (2) Disconnect the lead wire to the reactor and the following support and the separator support...
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OPERATING PROCEDURE PHOTOS/FIGURES * Connection procedure when attaching the inverter P.C. Photo 7 board (Photo 8, 9) 1. Attach the heat sink support to the P.C. board support. 2. Hook the lead wires of the compressor, the reactor and the P.C.
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OPERATING PROCEDURE PHOTOS/FIGURES 3. Removing the discharge temperature thermistor, Photo 10 defrost thermistor, outdoor heat exchanger tempera- Outdoor heat exchanger temperature thermistor ture thermistor and ambient temperature thermistor (1) Remove the cabinet and panels. (Refer to section 1.) (2) Disconnect the lead wire to the reactor and the following connectors: <Inverter P.C.
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OPERATING PROCEDURE PHOTOS/FIGURES 5. Removing the compressor and 4-way valve Photo 12 (1) Remove the cabinet and panels. (Refer to section 1.) Brazed part of Brazed part of (2) Remove the inverter assembly. (Refer to section 2.) the discharge pipe the suction pipe (3) Remove the screws fixing the reactor.
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11-4. MUZ-GS30NA2 MUZ-GS30NAH2 MUY-GS30NA2 MUZ-GS36NA2 MUZ-GS36NAH2 MUY-GS36NA2 NOTE: Turn OFF the power supply before disassembly. OPERATING PROCEDURE PHOTOS/FIGURES 1. Removing the cabinet Photo 1 Screws of the top panel (1) Remove the screws of the service panel. (2) Remove the screws of the top panel. (3) Remove the screw of the valve cover.
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OPERATING PROCEDURE PHOTOS/FIGURES 2. Removing the inverter assembly, inverter P.C. board Photo 5 and fuse P.C. board (Other models) 2-1. Removing the inverter assembly and inverter P.C. board Screw of the heat Screw of the P.C. board sink support and the (1) Remove the top panel, cabinet and service panel.
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OPERATING PROCEDURE PHOTOS/FIGURES * Connection procedure when attaching the inverter P.C. Photo 7 board (Photo 8, 9) 1. Attach the heat sink support to the P.C. board support. 2. Hook the lead wires of the compressor, the reactor and the P.C.
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OPERATING PROCEDURE PHOTOS/FIGURES 2-2. Removing the fuse P.C. board Photo 10 (1) Remove the top panel, cabinet and service panel. (Refer to Support section 1.) CN65 Fuse P.C. board (2) Disconnect the lead wire to the reactor and the inverter P.C. board connectors.
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OPERATING PROCEDURE PHOTOS/FIGURES 3. Removing the discharge temperature thermistor, Photo 12 defrost thermistor, outdoor heat exchanger tempera- Outdoor heat exchanger ture thermistor and ambient temperature thermistor temperature thermistor (1) Remove the cabinet and panels. (Refer to section 1.) (2) Disconnect the lead wire to the reactor and the following connectors: <Inverter P.C.
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OPERATING PROCEDURE PHOTOS/FIGURES 5. Removing the compressor and 4-way valve Photo 14 (1) Remove the cabinet and panels. (Refer to section 1.) Brazed part of (2) Remove the inverter assembly. (Refer to section 2.) the discharge pipe (3) Remove the screws fixing the reactor. Discharge (4) Remove the reactor.