Mitsubishi Electric MXZ-3B54VA Installation Manual
Split-type air-conditioner
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- Service manual (204 pages) ,
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- Manual (586 pages)
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Split-type Air-Conditioner
MXZ-3B54VA
MXZ-4B71VA
INSTALLATION MANUAL
• Refer to the installation manual of each indoor unit for indoor
unit installation.
IMPORTANT NOTES
TO COMPLY WITH THE REQUIREMENTS OF AUSTRALIAN STANDARD
AS/NZS 3000 ELECTRICAL INSTALLATIONS (Wiring Rules),
THE ELECTRICAL WIRING REQUIRED BETWEEN THE INDOOR AND
OUTDOOR UNITS MUST BE INSTALLED BY A LICENCED ELECTRICAL
CONTRACTOR.
CONTENTS
1. BEFORE INSTALLATION ..............................................................................2
2. OUTDOOR UNIT INSTALLATION .................................................................5
3. FLARING WORK AND PIPE CONNECTION . ................................................5
4. PURGING PROCEDURES, LEAK TEST, AND TEST RUN . ..........................6
5. RELOCATION AND MAINTENANCE ............................................................7
FOR INSTALLER
English
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Table of Contents
Related Manuals for Mitsubishi Electric MXZ-3B54VA
Summary of Contents for Mitsubishi Electric MXZ-3B54VA
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Page 1: Table Of Contents
Split-type Air-Conditioner MXZ-3B54VA MXZ-4B71VA INSTALLATION MANUAL English • Refer to the installation manual of each indoor unit for indoor unit installation. IMPORTANT NOTES TO COMPLY WITH THE REQUIREMENTS OF AUSTRALIAN STANDARD AS/NZS 3000 ELECTRICAL INSTALLATIONS (Wiring Rules), THE ELECTRICAL WIRING REQUIRED BETWEEN THE INDOOR AND OUTDOOR UNITS MUST BE INSTALLED BY A LICENCED ELECTRICAL CONTRACTOR. CONTENTS 1. BEFORE INSTALLATION ................2 2. OUTDOOR UNIT INSTALLATION ..............5 3. FLARING WORK AND PIPE CONNECTION ..........5 4. PURGING PROCEDURES, LEAK TEST, AND TEST RUN ......6 5. RELOCATION AND MAINTENANCE ............7 FOR INSTALLER... -
Page 2: Before Installation
Max. pipe length Max. no. of bends Model Rated Fre- Breaker Indoor/outdoor Max. Refrigerant adjust- Power supply per indoor unit / per indoor unit / Voltage quency capacity connecting wire height difference ment A *7 for multi-system for multi system MXZ-3B54VA 25 m / 50 m 25 / 50 4-core 230 V 50 Hz 25 A 3-core 2.5 mm 15 m 20 g/m 1.0/1.5 mm MXZ-4B71VA 25 m / 60 m 25 / 60 *1 Connect to the power switch which has a gap of 3 mm or more when open *6 Refrigerant pipe bending radius must be 100 mm or more. to interrupt the source power phase. (When the power switch is shut off, it *7 If pipe length exceeds 40 m, additional refrigerant (R410A) charge is re- must interrupt all phases.) quired. (No additional charge is required for pipe length less than 40 m.) *2 Use wires in conformity with design 60245 IEC 57. Use the indoor/outdoor... -
Page 3: Selecting The Installation Location
1-4. SELECTING PIPE SIZE AND OPTIONAL DIFFERENT-DIAMETER JOINTS The diameter of connection pipes differs according to the type and capacity of indoor units. Match the diameters of connection pipes for indoor and outdoor units according to the following table. • If the diameter of connection pipes does not match the diameter of pipe end connections, use optional different-diameter joints. (Unit: mm) Indoor unit Outdoor unit 22/25/35 MXZ- MXZ- Pipe size 6.35 (0.8) / 9.52 (0.8) 6.35 (0.8) / 12.7 (1.0) 6.35 (0.8) / 15.88 (1.0) 3B54VA 4B71VA Liquid (Wall thickness) / Gas (Wall thickness) A UNIT 6.35 (0.8) / 12.7 (1.0) - / MAC-A455JP - / - - / MAC-A456JP A UNIT B UNIT B UNIT C UNIT 6.35 (0.8) / 9.52 (0.8) - / - - / MAC-454JP - / PAC-SG76RJ C UNIT D UNIT 1-5. -
Page 4: Installation Diagram
1-6. INSTALLATION DIAGRAM ACCESSORIES Check the following parts before installation. (1) Drain socket (2) Drain cap After the leak test, apply insulat- ing material tightly so that there is no gap. PARTS TO BE PROVIDED AT YOUR SITE (A) Power supply cord* (B) Indoor/outdoor unit connecting wire* When the piping is to be at- (C) Extension pipe (Refer to 1-4.) tached to a wall containing metals (D) Wall hole cover (tin plated) or metal netting, use a chemically treated wooden (E) Piping tape piece 20 mm or thicker between Extension drain hose the wall and the piping or wrap 7 (or soft PVC hose, 15 mm inner to 8 turns of insulation vinyl tape diameter or hard PVC pipe VP16) around the piping. Open as a rule To use existing piping, perform More than 500 mm... -
Page 5: Outdoor Unit Installation
2. OUTDOOR UNIT INSTALLATION Terminal block 2-1. CONNECTING WIRES FOR OUTDOOR UNIT for power supply 1) Remove the service panel. 2) Loosen terminal screw, and connect indoor/outdoor unit connecting wire (B) from the indoor unit correctly on the terminal block. Be careful not to make mis-wiring. Fix the wire to the terminal block securely so that no part of its core is appeared, and no external force is conveyed to the connecting section of the terminal block. 3) Firmly tighten the terminal screws to prevent them from loosening. Af- ter tightening, pull the wires lightly to confirm that they do not move. 4) Perform 2) and 3) for each indoor unit. 5) Connect power supply cord (A). 6) Fix indoor/outdoor unit connecting wire (B) and power supply cord (A) with the cable clamps. 4B71VA 7) Close the service panel securely. Make sure that 3-2. PIPE CONNEC- TION is completed. D unit is for 4B71VA only • After making connections between both power supply cord (A) and Service panel indoor/outdoor unit connecting wire (B), be sure to fix both cable and wire with cable clamps. -
Page 6: Purging Procedures, Leak Test, And Test Run
3-2. PIPE CONNECTION • Fasten flare nut with a torque wrench as specified in the table. • When fastened too tight, flare nut may brake after a long period and cause refrigerant leakage. Outdoor unit connection WARNING Connect pipes to stop valve pipe joint of the outdoor unit in the same When installing the unit, securely manner applied for indoor unit. connect the refrigerant pipes before • For tightening, use a torque wrench or spanner and use the same starting the compressor. tightening torque applied for indoor unit. -
Page 7: Test Run
4-3. REMOVING THE MAINTENANCE PANEL The setting of Dip Switch on the outdoor controller board can be changed without removing the front panel. Follow the procedures below to remove the maintenance panel and set the Dip Switch. 1) Remove screw(s) which fix the maintenance panel. 2) Remove the maintenance panel, and perform necessary settings. 3) Install the maintenance panel. Note: maintenance panel Make sure to fix the maintenance panel securely. Incomplete installation could cause malfunction. 4-4. LOCKING THE OPERATION MODE OF THE AIR CONDITIONER (COOL, DRY, HEAT) • Description of the function: With this function, you can lock the operation mode of the outdoor unit. Once the operation mode is locked to either COOL/DRY mode or HEAT mode, the air conditioner operates in that mode only. - Page 8 HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN JG79A319H01...