Mitsubishi Electric MXZ-2C52VA Installation Manual
Split-type air-conditioner
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- Service manual (396 pages) ,
- Installation manual (12 pages) ,
- Service manual (302 pages)
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Summary of Contents for Mitsubishi Electric MXZ-2C52VA
- Page 1 Split-type Air-Conditioner MXZ-2C52VA For INSTALLER Installation Manual English • This manual only describes the installation of outdoor unit. When installing the indoor unit, refer to the installation manual of indoor unit.
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Page 2: Before Installation
Power supply per indoor unit / per indoor unit / Voltage quency capacity connecting wire difference *9 ment A *0 for multi-system for multi system 4-core MXZ-2C52VA 230 V 50 Hz 5 A 3-core 2.0 mm 20 m / 30 m 5 m 20 / 30 20 g/m .0/.5 mm * Connect to the power switch which has a gap of 3 mm or more when *6 Refrigerant pipe bending radius must be 00 mm or more. -
Page 3: Installation Diagram
1-3. SELECTING OPTIONAL DIFFERENT-DIAMETER JOINTS If the diameter of connection pipe does not match the port size of outdoor unit, use optional different-diameter joints according to the following table. (Unit: mm (inch)) Optional different-diameter joints (port size of outdoor unit → diameter of connection pipe) Port size of outdoor unit 6,35 (/4) → 9,52 (3/8) : PAC-493PI MXZ-2C Liquid / Gas 9,52 (3/8) → 2,7 (/2) : MAC-454JP 9,52 (3/8) → 5,88 (5/8) : PAC-SG76RJ 2,7 (/2) → 9,52 (3/8) : MAC-A455JP A , B UNIT 6,35 (/4) / 9,52 (3/8) 2,7 (/2) → 5,88 (5/8) : MAC-A456JP Refer to the installation manual of indoor unit for the diameter of connection pipe of indoor unit. 1-4. SELECTING THE INSTALLATION LOCATION • Where it is not exposed to strong wind. Note: • Where airflow is good and dustless. When operating the air conditioner in low outside temperature, be sure • Where rain or direct sunshine can be avoided as much as possible. to follow the instructions described below. • Where neighbours are not annoyed by operation sound or hot air. • Never install the outdoor unit in a place where its air inlet/outlet side • Where rigid wall or support is available to prevent the increase of op- may be exposed directly to wind. -
Page 4: Drain Piping For Outdoor Unit
1-6. DRAIN PIPING FOR OUTDOOR UNIT Please perform the drain piping work only when draining from one place. ) Provide drain piping before indoor and outdoor piping connection. 2) Connect the soft PVC hose (L) I.D.5 mm as shown in the illustration. 3) Make sure to provide drain piping with a downhill grade for easy drain flow. Note: Install the unit horizontally. Do not use the drain socket () in the cold regions. Drain may freeze and it makes the fan stop. The outdoor unit produces condensate during the heating operation. Select the in- stallation place to ensure to prevent the outdoor unit and/or the grounds from being (L) Soft PVC hose wet by drain water or damaged by frozen drain water. () Drain socket 2. OUTDOOR UNIT INSTALLATION 2-1. CONNECTING WIRES FOR OUTDOOR UNIT Terminal block for power supply ) 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. -
Page 5: Pipe Connection
3-2. PIPE CONNECTION 1) Apply a thin coat of refrigeration oil (G) to the flared ends of the pipes and the pipe connections of the out- door unit. WARNING 2) Align the center of the pipe with that of the pipe connections of the outdoor unit, then hand tighten the flare nut 3 to 4 turns. When installing the unit, securely 3) Tighten the flare nut with a torque wrench as specified in the table. connect the refrigerant pipes before • Over-tightening may cause damage to the flare nut, resulting in refrigerant leakage. starting the compressor. • Be sure to wrap insulation around the piping. Direct contact with the bare piping may result in burns or frostbite. CAUTION 3-3. INSULATION AND TAPING When there are the ports which are ) Cover piping joints with pipe cover. not used, make sure their nuts are 2) For outdoor unit side, surely insulate every piping including valves. -
Page 6: Relocation And Maintenance
4-3. LOCKING THE OPERATION MODE OF THE AIR CONDITIONER (COOL, DRY, HEAT) • Description of the function: With this function, once the operation mode is locked to either COOL/DRY mode or HEAT mode, the air conditioner operates in that mode only. * Changing the setting is required to activate this function. Please explain about this function to your customers and ask them whether they want to use it. [How to lock the operation mode] ) Be sure to turn off the main power for the air conditioner before making the setting. 2) Set the “2” of SW on the outdoor controller board to ON to enable this func- tion. 3) To lock the operation mode in COOL/DRY mode, set the “” of SW on the outdoor controller board to OFF. To lock the operation in HEAT mode, set the same switch to ON. 4) Turn on the main power for the air conditioner. - Page 8 HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 00-830, JAPAN JG79A459H02...