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Air-Conditioners
SUZ-M-VA-ER Series
INSTALLATION MANUAL
For safe and correct use, read this manual and the indoor unit installation manual thoroughly before installing
the air-conditioner unit.
FOR INSTALLER
English

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Summary of Contents for Mitsubishi Electric Mr.Slim SUZ-M-VA-ER Series

  • Page 1 Air-Conditioners SUZ-M-VA-ER Series INSTALLATION MANUAL FOR INSTALLER English For safe and correct use, read this manual and the indoor unit installation manual thoroughly before installing the air-conditioner unit.
  • Page 2: Table Of Contents

    Contents 1. The following should always be observed for safety ..... 13 5. Refrigerant piping work ......... . . 18 2.
  • Page 3: Selecting The Installation Location

    1. The following should always be observed for safety Caution: If a ground leakage breaker is not installed, it could cause an electric shock. • Perform grounding. • Perform the drainage/piping work securely according to the installation Do not connect the ground wire to a gas pipe, water pipe arrester or tel- manual.
  • Page 4 2. Selecting the installation location /2.2. Minimum installation area If you unavoidably install a unit in a space where all four sides are blocked or there are depressions, confirm that one of these situations (A, B or C) is satisfied. Note: These countermeasures are for keeping safety not for specification guarantee.
  • Page 5 2. Selecting the installation location ■ Indoor units Install in a room with a floor area of Amin or more, corresponding to refrigerant quantity M (factory-charged refrigerant + locally added refrigerant). * For the factory-charged refrigerant amount, refer to the spec nameplate or installation manual. For the amount to be added locally, refer to the installation manual.
  • Page 6: Installation Diagram

    3. Installation diagram 3.1. Outdoor unit (Fig. 3-1) Ventilation and service space ■ A 100 mm or more ■ B 350 mm or more C Basically open 100 mm or more without any obstruction in front and on both sides of the unit. D 200 mm or more (Open two sides of left, right, or rear side.) ■...
  • Page 7: Drain Piping For Outdoor Unit

    4. Drain piping for outdoor unit (Fig. 4-1) 4.1. Accessories Check the following parts before installation. <Outdoor unit> Drain socket • Provide drain piping before indoor and outdoor piping connection. (It will be hard to install drain socket if indoor and outdoor piping connection is conducted prior to drain piping as outdoor unit becomes immovable.) •...
  • Page 8 5. Refrigerant piping work 5.2. Flaring work Copper tubes Good • Main cause of gas leakage is defect in flaring work. No good Carry out correct flaring work in the following procedure. 90° Tilted Uneven 5.2.1. Pipe cutting (Fig. 5-3) Burred •...
  • Page 9 5. Refrigerant piping work 5.3. Purging procedures leak test PURGING PROCEDURES Remove the gage manifold valve quickly from the service port of the stop valve. Connect the refrigerant pipes (both the liquid and gas pipes) between the indoor After refrigerant pipes are connected and evacuated, fully open all stop valves on and the outdoor units.
  • Page 10: Electrical Work

    6. Electrical work 6.1. Outdoor unit (Fig. 6-1, Fig. 6-2, Fig. 6-3, Fig. 6-4) Remove the service panel. Wire the cables referring to the Fig. 6-1, Fig. 6-2, Fig. 6-3 and the Fig. 6-4. ■ ■ M25/35/50 M60/71 1 S 2 S Indoor unit Indoor unit Outdoor unit...
  • Page 11 6. Electrical work ■ M60/71 Loosen terminal screw Terminal block Lead wire Be sure to fix Service panel the indoor/ outdoor unit connecting wire Remove fixing using this cord screw to open the clamp. service panel. Fig. 6-5 6.2. Field electrical wiring Outdoor unit model M25/35 M35 *3...
  • Page 12: Maintenance

    7. Maintenance 7.1. Gas charge (Fig. 7-1) 1. Connect gas cylinder to the service port of stop valve (3-way). 2. Execute air purge of the pipe (or hose) coming from refrigerant gas cylinder. 3. Replenish specified amount of refrigerant, while running the air condition- er for cooling.
  • Page 13 <ENGLISH> English is original. The other languages versions are translation of the original. CAUTION • Refrigerant leakage may cause suffocation. Provide ventilation in accordance with EN378-1. • Be sure to wrap insulation around the piping. Direct contact with the bare piping may result in burns or frostbite. • Never put batteries in your mouth for any reason to avoid accidental ingestion. • Battery ingestion may cause choking and/or poisoning. • Install the unit on a rigid structure to prevent excessive operation sound or vibration. • The A-weighted sound pressure level is below 70dB. • This appliance is intended to be used by expert or trained users in shops, in light industry and on farms, or for commercial use by lay persons.
  • Page 14 ■ The serial number is indicated on the SPEC NAME PLATE. Sequential number for each unit: 00001–99999 P (Product code of outdoor) Month of manufacture: 1, 2, 3, 4, 5, 6, 7, 8, 9, X (10), Y (11), Z (12) Year of manufacture (western calendar) : 2015 → 5, 2016 → 6...
  • Page 15 This product is designed and intended for use in the residential, commercial and light-industrial environment. Please be sure to put the contact address/telephone number on this manual before handing it to the customer. HEAD OFFICE: TOKYO BUILDING, 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN VH79A008H01 Printed in Thailand...