Mitsubishi MSZ-GA50 VA- User Manual

Mitsubishi MSZ-GA50 VA

Mitsubishi MSZ-GA50 VA– User Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.

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Table of Contents:

  • Page 3 – TECHNICAL CHANGES; Refrigeration; INFORMATION FOR THE AIR CONDITIONER WITH R410A REFRIGERANT
  • Page 4 – NOTE : The unit of pressure has been changed to MPa on the; Can R22 tools be used?; Tools dedicated for the air conditioner with R410A refrigerant; Compressor
  • Page 6 – PART NAMES AND FUNCTIONS; ACCESSORIES; SPECIFICATION
  • Page 7 – NOISE CRITERIA CURVES; Specifications and rating conditions of main electric parts
  • Page 8 – OUTLINES AND DIMENSIONS; REQUIRED SPACE
  • Page 9 – WIRING DIAGRAM; MF; MC
  • Page 12 – REFRIGERANT SYSTEM DIAGRAM
  • Page 14 – MAX. REFRIGERANT PIPING LENGTH and MAX. HEIGHT DIFFERENCE
  • Page 15 – PERFORMANCE CURVES; (1) GUARANTEED VOLTAGE; INDOOR UNIT
  • Page 16 – frost and defrost operation.
  • Page 17 – COOL operation; Both indoor and outdoor unit are under the; -4. OUTDOOR LOW PRESSURE AND OUTDOOR UNIT CURRENT
  • Page 18 – HEAT operation
  • Page 19 – PERFORMANCE DATA COOL operation
  • Page 25 – PERFORMANCE DATA HEAT operation
  • Page 26 – ACTUATOR CONTROL; -3. RELATION BETWEEN MAIN SENSOR AND ACTUATOR
  • Page 27 – Troubleshooting procedure; the components for bursting and discoloration.; Before troubleshooting, check the following; Housing point; Contents of “SERVICE FUNCTIONS” have been removed.
  • Page 30 – Outdoor failure mode table
  • Page 32 – Start
  • Page 35 – Other models
  • Page 36 – Check of power supply; Outdoor unit does not operate.
  • Page 39 – Check of LEV; How to check inverter/ compressor
  • Page 41 – Check of HPS; • When the operation frequency does not go up from lowest frequency.; Infinity
  • Page 42 – Electromagnetic noise enters into TV sets or radios
  • Page 45 – Outdoor power board; Connect to the earth
  • Page 46 – DISASSEMBLY INSTRUCTIONS; OPERATING PROCEDURE; Removing the cabinet
  • Page 47 – and power board; thermistor and outdoor heat exchanger; Photo 4; Screws of the relay panel
  • Page 48 – Photo 5
  • Page 49 – Photo 8; Welded parts of 4-way valve; Removing the compressor and 4-way valve; Recover gas from the pipes until the pressure; Removing the reactor; Screws of the reactor; Photo 9
  • Page 50 – FUNCTIONAL PARTS
  • Page 51 – Part numbers that are circled are not shown in the illustration.
  • Page 55 – RoHS
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SERVICE MANUAL

CONTENTS

1. TECHNICAL CHANGES ····································3
2. PART NAMES AND FUNCTIONS ······················6
3. SPECIFICATION·················································6
4. NOISE CRITERIA CURVES ·······························7
5. OUTLINES AND DIMENSIONS ·························8
6. WIRING DIAGRAM ············································9
7. REFRIGERANT SYSTEM DIAGRAM ··············12
8. PERFORMANCE CURVES ······························15
9. ACTUATOR CONTROL····································26

10. SERVICE FUNCTIONS·····································27
11. TROUBLESHOOTING ······································27
12. DISASSEMBLY INSTRUCTIONS·····················46
13. PARTS LIST······················································50
14. RoHS PARTS LIST···········································54

Wireless type
Models

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

MUZ-GA50VA -
MUZ-GA60VA -
MUZ-GA60VA -
MUZ-GA60VA -
MUZ-GA71VA -
MUZ-GA71VA -

E2

E1

E3

E2

E1

E1

HFC

utilized

R410A

NOTE:
• RoHS compliant products have <G> mark on the spec name plate.

For servicing of RoHS compliant products, refer to the RoHS Parts List.

• Contents of SERVICE FUNCTIONS(10) have been removed.

No. OB389

REVISED EDITION-F

Indoor unit service manual
MSZ-GA•VA Series (OB388)

Please void OB389 REVISED EDITION-E.

OUTDOOR UNIT

Revision F:

• MUZ-GA60VA-

has been added.

E3

OB389F--1qxp 07.9.3 5:06 PM Page 1

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Summary

Page 3 - TECHNICAL CHANGES; Refrigeration; INFORMATION FOR THE AIR CONDITIONER WITH R410A REFRIGERANT

3 1 TECHNICAL CHANGES Refrigeration oil Refrigerant New refrigerant R410A HFC-32: HFC-125 (50%:50%) Pseudo-azeotropic refrigerant Not included A1/A1 72.6 -51.4 1.557 64 Non combustible 0 1730 From liquid phase in cylinder Possible Incompatible oil Non Non Previous refrigerant R22 R22 (100%) Single r...

Page 4 - NOTE : The unit of pressure has been changed to MPa on the; Can R22 tools be used?; Tools dedicated for the air conditioner with R410A refrigerant; Compressor

4 -30 -20 -10 0 10 20 30 40 50 60 -0.5 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 (MPa [Gauge]) R410A R22 Conversion chart of refrigerant temperature and pressure Saturated liquid pressure ( : ) NOTE : The unit of pressure has been changed to MPa on the international system of units(SI unit system). The co...

Page 6 - PART NAMES AND FUNCTIONS; ACCESSORIES; SPECIFICATION

6 PART NAMES AND FUNCTIONS 2 Air inlet Piping Air outlet (back and side) Drain hose Drain outlet ACCESSORIES 12 Drain socket Drain cap [ 33 1 2 E1 E2 E3 Single phase 230V,50Hz 20 7.46 0.30 SNB130FLDH or SNB130FLDH1 850 U-V 0.45 W-U 0.45 V-W 0.45 RC0J60-AA BLK-WHT 15.2 WHT-RED 15.2 RED-BLK15.2 840 o ...

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