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Mitsubishi Electric MUCF-GA35VB Service Manual
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Mitsubishi Electric MUCF-GA35VB Service Manual

Mitsubishi Electric MUCF-GA35VB Service Manual

Floor and ceiling type air conditioners wireless type models
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FLOOR AND CEILING TYPE AIR CONDITIONERS

OUTDOOR UNIT

SERVICE MANUAL

Wireless type
Models
MUCF-GA35VB -
MUCF-GA50VB -
MUCF-GA60VB -
NOTE:
This service manual describes technical data of the outdoor units.
RoHS compliant products have <G> mark on the spec name plate.
For servicing of RoHS compliant products, refer to the RoHS PARTS LIST (RoHS compliant).
MUCF-GA50VB
RoHS PARTS LIST has been added.
Please void OB383.
HFC
utilized
R410A
E1
E1
E1
Indoor unit service manual
MCF-GA•VB Series (OB382)
CONTENTS
1. TECHNICAL CHANGES ····································2
2. PART NAMES AND FUNCTIONS······················5
3. SPECIFICATION·················································5
4. NOISE CRITERIA CURVES ·······························6
5. OUTLINES AND DIMENSIONS ·························7
6. WIRING DIAGRAM ············································8
7. REFRIGERANT SYSTEM DIAGRAM ··············10
8. PERFORMANCE CURVES ······························13
9. TROUBLESHOOTING······································22
10. DISASSEMBLY INSTRUCTIONS·····················24
11. PARTS LIST······················································31
12. RoHS PARTS LIST···········································34
No. OB383
REVISED EDITION-A

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  • Page 1: Table Of Contents

    Please void OB383. OUTDOOR UNIT No. OB383 SERVICE MANUAL REVISED EDITION-A utilized R410A Wireless type Models MUCF-GA35VB - MUCF-GA50VB - MUCF-GA60VB - Indoor unit service manual MCF-GA•VB Series (OB382) CONTENTS 1. TECHNICAL CHANGES ····································2 2. PART NAMES AND FUNCTIONS······················5 3. SPECIFICATION·················································5 4.

  • Page 2: Technical Changes

    Revision A : • RoHS PARTS LIST has been added. TECHNICAL CHANGES MUCF-A12WV - MUCF-GA35VB - 1. Model name has been changed. MUCF-A18WV - MUCF-GA50VB - 1. Model name has been changed. MUCF-A24WV - MUCF-GA60VB - 1. Model name has been changed.
  • Page 3 New Specification Current Specification The incompatible refrigeration oil easily separates from Since refrigerant and refrigerating oil are compatible each, refrigerant and is in the upper layer inside the suction muffler. refrigeration oil goes back to the compressor through the Raising position of the oil back hole enables to back the lower position oil back hole.
  • Page 4 2.Refrigerant piping 1 Specifications Use the refrigerant pipes that meet the following specifications. Outside diameter Wall Pipe Insulation material thickness 6.35 0.8 mm For liquid Heat resisting foam plastic 0.8 mm 9.52 Specific gravity 0.045 Thickness 8 mm 0.8 mm 12.7 For gas 1.0 mm...

  • Page 5: Part Names And Functions

    PART NAMES AND FUNCTIONS MUCF-GA35VB MUCF-GA50VB MUCF-GA60VB Air inlet (back and side) Air inlet (back and side) Piping Piping Drain hose Drain hose Air outlet Air outlet Drain outlet Drain outlet SPECIFICATION Outdoor model MUCF-GA35VB MUCF-GA50VB MUCF-GA60VB Function Cooling Cooling...

  • Page 6: Noise Criteria Curves

    NOISE CRITERIA CURVES NOISE CRITERIA CURVES MUCF-GA35VB MUCF-GA50VB FAN SPEED FUNCTION SPL(dB(A)) LINE FAN SPEED FUNCTION SPL(dB(A)) LINE High COOLING High COOLING Test conditions, Test conditions, Cooling : Dry-bulb temperature 35: Wet-bulb temperature 24: Cooling : Dry-bulb temperature 35: Wet-bulb temperature 24:...

  • Page 7: Outlines And Dimensions

    OUTLINES AND DIMENSIONS MUCF-GA35VB Unit: mm REQUIRED SPACE Air in Air in Drainage 3 holes [33 Air out Service panel Liquid refrigerant pipe joint Refrigerant pipe (flared) [6.35 Gas refrigerant pipe joint Refrigerant pipe (flared) [12.7 MUCF-GA50VB MUCF-GA60VB Unit: mm Drainage hole [16.2...

  • Page 8: Wiring Diagram

    WIRING DIAGRAM MUCF-GA35VB INDOOR UNIT CONNECTING DSAR CIRCUIT BREAKER NO COM POWER SUPPLY 230V 50Hz GRN/YLW SYMBOL NAME SYMBOL NAME SYMBOL NAME COMPRESSOR CAPACITOR COMPRESSOR(INNER PROTECTOR) TB1,TB2 TERMINAL BLOCK OUTDOOR FAN CAPACITOR COMPRESSOR CONTACTOR OUTDOOR FAN MOTOR (INNER FUSE) DSAR SURGE ABSORBER NOTE:1.
  • Page 9 MUCF-GA60VB INDOOR UNIT CONNECTING DSAR CIRCUIT BREAKER POWER SUPPLY 230V 50Hz GRN/YLW SYMBOL NAME SYMBOL NAME SYMBOL NAME COMPRESSOR CAPACITOR COMPRESSOR (INNER PROTECTOR) RELAY OUTDOOR FAN CAPACITOR OUTDOOR FAN MOTOR (INNER PROTECTOR) COMPRESSOR CONTACTOR DSAR SURGE ABSORBER TB1,TB2 TERMINAL BLOCK NOTES: 1.About the indoor side electric wiring refer to the indoor unit electric wiring diagram for servicing.

  • Page 10: Refrigerant System Diagram

    REFRIGERANT SYSTEM DIAGRAM MUCF-GA35VB Unit:mm Refrigerant pipe [12.7 (with heat insulator) Muffler Stop valve (with service port) Outdoor heat Flared connection exchanger Compressor Flared connection Strainer Stop valve #100 Capillary tube [3.0x[1.4x550 Refrigerant pipe [6.35 (with heat insulator) Refrigerant flow in cooling...
  • Page 11 MUCF-GA60VB Unit:mm Refrigerant pipe [15.88 (with heat insulator) Muffler #100 Muffler Stop valve (with service port) Outdoor heat Flared connection exchanger Compressor Flared connection Capillary tube Stop valve [3.0X[2.0X1000 Refrigerant pipe [6.35 (with heat insulator) Refrigerant flow in cooling...
  • Page 12 REFRIGERANT PIPING MAX. LENGTH & MAX. HEIGHT DIFFERENCE Refrigerant piping Piping size O.D. : mm Models Max. length : m Liquid MUCF-GA35VB 12.7 MUCF-GA50VB 6.35 MUCF-GA60VB 15.88 Indoor unit Outdoor unit *Height difference should be within 10m regardless of which unit, indoor or outdoor position is high.

  • Page 13: Performance Curves

    PERFORMANCE CURVES MUCF- GA35VB MUCF-GA50VB MUCF-GA60VB The standard data contained in these specifications apply only to the operation of the air conditioner under normal conditions, since operating conditions vary according to the areas where these units are installed. The following information has been pro- vided to clarify the operating characteristics of the air conditioner under the conditions indicated by the performance curve.
  • Page 14 2 Air flow should be set at MAX. 3 The unit of pressure has been changed to MPa on the international system of units(SI unit system). The conversion factor is : 1(MPa [Gauge]) =10.2(kgf/f f [Gauge]) MUCF-GA35VB (kgf/F[Gauge])(MPa[Gauge]) 230V 230V...
  • Page 15 MUCF-GA60VB (kgf/F[Gauge])(MPa[Gauge]) 230V 230V 35(:) 35(:) Ambient temperature (:) Ambient temperature (:) Ambient humidity (%) Ambient humidity (%)
  • Page 16 PERFORMANCE DATA COOL operation (230V) MCF-GA35VB : MUCF-GA35VB CAPACITY :3.5(kW) SHF :0.70 INPUT :1160(W) OUTDOOR DB(:) INDOOR INDOOR DB(:) WB(:) SHC SHF INPUT SHC SHF INPUT SHC SHF INPUT SHC SHF INPUT 4.11 2.14 0.52 3.94 2.05 0.52 3.78 1.97 0.52 1021 3.64 1.89 0.52...
  • Page 17 PERFORMANCE DATA COOL operation (230V) MCF-GA35VB : MUCF-GA35VB CAPACITY :3.5(kW) SHF :0.70 INPUT :1160(W) OUTDOOR DB(:) INDOOR INDOOR DB(:) WB(:) SHC SHF INPUT SHC SHF INPUT SHC SHF INPUT 3.43 1.78 0.52 1137 3.15 1.64 0.52 1206 3.03 1.57 0.52 1230 3.61 1.44 0.40...
  • Page 18 PERFORMANCE DATA COOL operation(230V) MCF-GA50VB : MUCF-GA50VB CAPACITY :4.8(kW) SHF :0.65 INPUT :1810(W) OUTDOOR DB(:) INDOOR INDOOR DB(:) WB(:) SHC SHF INPUT SHC SHF INPUT SHC SHF INPUT SHC SHF INPUT 5.64 2.65 0.47 1448 5.40 2.54 0.47 1520 5.18 2.44 0.47 1593 4.99 2.35 0.47 1665...
  • Page 19 PERFORMANCE DATA COOL operation(230V) MCF-GA50VB : MUCF-GA50VB CAPACITY :4.8(kW) SHF :0.65 INPUT :1810(W) OUTDOOR DB(:) INDOOR INDOOR DB(:) WB(:) SHC SHF INPUT SHC SHF INPUT SHC SHF INPUT 4.70 2.21 0.47 1774 4.32 2.03 0.47 1882 4.15 1.95 0.47 1919 4.94 1.73 0.35 1846 4.61 1.61 0.35...
  • Page 20 PERFORMANCE DATA COOL operation(230V) MCF-GA60VB : MUCF-GA60VB CAPACITY :6.0(kW) SHF :0.64 INPUT :2450(W) OUTDOOR DB(:) INDOOR INDOOR DB(:) WB(:) SHC SHF INPUT SHC SHF INPUT SHC SHF INPUT SHC SHF INPUT 7.05 3.24 0.46 1960 6.75 3.11 0.46 2058 6.48 2.98 0.46 2156 6.24 2.87 0.46 2254...
  • Page 21 PERFORMANCE DATA COOL operation(230V) MCF-GA60VB : MUCF-GA60VB CAPACITY :6.0(kW) SHF :0.64 INPUT :2450(W) OUTDOOR DB(:) INDOOR INDOOR DB(:) WB(:) SHC SHF INPUT SHC SHF INPUT SHC SHF INPUT 5.88 2.70 0.46 2401 5.40 2.48 0.46 2548 5.19 2.39 0.46 2597 6.18 2.10 0.34 2499 5.76 1.96 0.34...

  • Page 22: Troubleshooting

    TROUBLESHOOTING MUCF-GA35VB MUCF-GA50VB MUCF-GA60VB 9-1. Cautions on troubleshooting 1. Before troubleshooting, check the following: (1) Check the power supply voltage. (2) Check the indoor/outdoor connecting wire for mis-wiring. 2. Take care the following during servicing. (1) Before servicing the air conditioner, be sure to turn OFF the main unit first with the remote controller, and then after con- firming the horizontal vane is closed, turn OFF the breaker and / or disconnect the power plug.
  • Page 23 9-3. Trouble criterion of main parts MUCF-GA35VB MUCF-GA50VB MUCF-GA60VB Part name Check method and criterion Figure Measure the resistance between the terminals with a tester. Compressor (Part temperature –10˚C ~ 40˚C) (MC) INNER Normal MAIN PROTECTOR Terminal Abnormal MUCF-GA35VB MUCF-GA50VB...

  • Page 24: Disassembly Instructions

    2Pull the terminal while pull out the terminal pushing the locking slowly. Locking lever lever. Connector 10-1. MUCF-GA35VB OPERATING PROCEDURE PHOTOS 1. Removing the cabinet Photo 1 (1) Remove the screws of the top panel. (2) Remove the screw of the service panel.
  • Page 25 OPERATING PROCEDURE PHOTOS 2. Removing the electrical parts Photo 4 (1) Remove the service panel and the cabinet.(Refer to 1.) Compressor (2) Remove the following parts. Screws capacitor • Compressor capacitor (C1) Relay panel • Outdoor fan capacitor (C2) • Terminal block Contractor Terminal block Outdoor fan capacitor...
  • Page 26 OPERATING PROCEDURE PHOTOS 4. Removing the compressor Photo 6 (1) Remove the cabinet. (Refer to 1.) Suction pipe Discharge pipe (2) Remove the relay panel. (3) Remove the soundproof felt. (4) Remove the terminal cover on the compressor. (5) Disconnect lead wires from the glass terminal of the com- Glass pressor.
  • Page 27 10-2. MUCF-GA50VB OPERATING PROCEDURE PHOTOS 1. Removing the cabinet Photo 1 (1) Remove the screws of the cabinet. (2) Hold the bottom of the cabinet on both sides and remove the cabinet. Photo 2 Screws of the cabinet Service Screws of panel the cabinet Outdoor fan capacitor(C2)
  • Page 28 OPERATING PROCEDURE PHOTOS 3. Removing the outdoor fan motor Hook Photo 4 (1) Remove the cabinet. (Refer to 1.) (2) Disconnect the connector and remove the hooked lead wire from the fan motor. (3) Remove the propeller nut and remove the propeller. (4) Remove screws fixing the outdoor fan motor.
  • Page 29 10-3. MUCF-GA60VB OPERATING PROCEDURE PHOTOS 1. Removing the cabinet Photo 1 (1) Remove the screws of the cabinet. (2) Hold the bottom of the cabinet on the both side to remove the cabinet. Screws Service panel Photo 2 Screws 2. Removing the electrical parts Outdoor fan capacitor (C2) Photo 3 (1) Remove the cabinet .
  • Page 30 OPERATING PROCEDURE PHOTOS 3. Removing the outdoor fan motor Photo 4 Hook (1) Remove the cabinet. (Refer to 1.) (2) Disconnect the connector and remove the hocked lead wire from the fan motor. (3) Remove the propeller nut and remove the propeller. (4) Remove the screws fixing the fan motor.

  • Page 31: Parts List

    PARTS LIST (non-RoHS compliant) MUCF-GA35VB 11-1. OUTDOOR UNIT STRUCTURAL PARTS Part number that is circled is not shown in the illustration. Q'ty/unit Symbol Part No. in Wiring Part name Remarks MUCF-GA35VB- Diagram E02 832 630 OUTDOOR HEAT EXCHANGER E02 815 232...
  • Page 32 PARTS LIST (non-RoHS compliant) MUCF-GA35VB 11-2. OUTDOOR UNIT ELECTRICAL PARTS AND FUNCTIONAL PARTS Part numbers that are circled are not shown in the illustration. Q'ty/unit Symbol Part No. Part name Remarks in Wiring MUCF-GA35VB- Diagram E02 665 501 PROPELLER E02 677 301...
  • Page 33 PARTS LIST (non-RoHS compliant) MUCF-GA50VB MUCF-GA60VB 11-3. OUTDOOR UNIT STRUCTURAL PARTS, ELECTRICAL PARTS AND FUNCTIONAL PARTS Part numbers that are circled are not shown in the illustration. Q'ty/unit Symbol in Wiring Part No. Part Name Remarks MUCF-GA60VB- MUCF-GA50VB- Diagram E02 817 233 BACK PANEL(OUT) E02 817 232 CABINET...

  • Page 34: Rohs Parts List

    RoHS PARTS LIST (RoHS compliant) MUCF-GA35VB 12-1. OUTDOOR UNIT STRUCTURAL PARTS Part number that is circled is not shown in the illustration. Q'ty/unit Symbol Part No. in Wiring Part name Remarks MUCF-GA35VB- Diagram E12 832 630 OUTDOOR HEAT EXCHANGER E12 815 232...
  • Page 35 RoHS PARTS LIST (RoHS compliant) MUCF-GA35VB 12-2. OUTDOOR UNIT ELECTRICAL PARTS AND FUNCTIONAL PARTS Part numbers that are circled are not shown in the illustration. Q'ty/unit Symbol Part No. Part name Remarks in Wiring MUCF-GA35VB- Diagram E12 665 501 PROPELLER...
  • Page 36 RoHS PARTS LIST (RoHS compliant) MUCF-GA50VB MUCF-GA60VB 12-3. OUTDOOR UNIT STRUCTURAL PARTS, ELECTRICAL PARTS AND FUNCTIONAL PARTS Part numbers that are circled are not shown in the illustration. Q'ty/unit Symbol in Wiring Part No. Part Name Remarks MUCF-GA60VB- MUCF-GA50VB- Diagram E12 817 233 BACK PANEL(OUT) E12 817 232...
  • Page 40 HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN C C Copyright 2004 MITSUBISHI ELECTRIC ENGINEERING CO.,LTD Distributed in May 2006. No.OB383 REVISED EDITION-A 6 Distributed in Dec. 2004. No.OB383 6 New publication, effective May 2006 Made in Japan...

This manual is also suitable for:

Mucf-ga50vbMucf-ga60vb

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