Daikin 2MXM50M3V1B9 Installation Manual
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INSTALLATION
MANUAL
R32 Split Series
Models
2MXM40M4V1B
2MXM50M3V1B9
2AMXM40M4V1B
2AMXM50M4V1B
2AMXF40A2V1B
2AMXF50A2V1B
Table of Contents
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Summary of Contents for Daikin 2MXM50M3V1B9

  • Page 1 INSTALLATION MANUAL R32 Split Series Models 2MXM40M4V1B 2MXM50M3V1B9 2AMXM40M4V1B 2AMXM50M4V1B 2AMXF40A2V1B 2AMXF50A2V1B...
  • Page 2 3P475203-12E...
  • Page 3 3P475203-15G...
  • Page 4 2P427092-15N...
  • Page 5 2P427092-15N...
  • Page 6 2P427092-17Q...
  • Page 7 2P427092-17Q...
  • Page 8: Safety Precautions

    Improper installation may result in water leakage, electric shocks or fire. • Only use accessories, optional equipment and spare parts made or approved by Daikin. • Install the air conditioner on a foundation strong enough to withstand the weight of the unit.
  • Page 9 • This appliance must be installed, operated and stored in a room larger than the minimum required floor area. • Comply with national gas regulations. • Make sure installation, servicing, maintenance and repair comply with instructions from Daikin and with applicable legislation (for example national gas regulation) and are executed only by authorised persons.
  • Page 10: Precautions For Selecting The Location

    Accessories Accessories supplied with the outdoor unit: Installation Manual + R32 manual Refrigerant charge label Contains fluorinated greenhouse gases GWP: 675 GWP × kg 1000 It is on the bottom of the packing case. It is on the bottom of the packing case. Multilingual fluorinated greenhouse gases label Drain plug It is on the bottom of the packing case.
  • Page 11: Indoor/Outdoor Unit Installation Drawings

    Indoor/Outdoor Unit Installation Drawings For installation of the indoor units, refer to the installation manual which was provided with the units. (The diagram shows a wall-mounted indoor unit.) CAUTION • Do not connect the embedded branch piping and the outdoor unit when only carrying out piping work without connecting the indoor unit in order to add another indoor unit later.
  • Page 12: Connections (Connection Port)

    Installation • Install the unit horizontally. • The unit may be installed directly on a concrete verandah or a solid place if drainage is good. • If the vibration may possibly be transmitted to the building, use a vibration-proof rubber (field supply). Connections (connection port) Install the indoor unit according to the table below, which shows the relationship between the class of indoor unit and the corresponding port.
  • Page 13: Outdoor Unit Installation Guideline

    Outdoor Unit Installation Guideline • Where a wall or other obstacle is in the path of outdoor unit’s inlet or outlet airflow, follow the installation guidelines below. • For any of the below installation patterns, the wall height on the exhaust side should be 1200mm or less. Walls facing two sides Wall facing one side More than 50...
  • Page 14: Refrigerant Piping Work

    Refrigerant Piping Work Installing outdoor unit 1) When installing the outdoor unit, refer to “Precautions for Selecting the Location” on page 3 and the “Indoor/Outdoor Unit Installation Drawings” on page 4. 2) If drain work is necessary, follow the procedures below. Drain work 1) Use the drain plug for drainage.
  • Page 15: Purging Air And Checking Gas Leakage

    Refrigerant Piping Work Purging air and checking gas leakage WARNING • Do not mix any substance other than the specified refrigerant (R32) into the refrigeration cycle. • When refrigerant gas leaks occur, ventilate the room as soon and as much as possible. •...
  • Page 16: Charging Additional Refrigerant

    Refrigerant Piping Work Charging refrigerant 1-1. Charging additional refrigerant • If the total length of refrigerant piping exceeds 20m, add refrigerant. (The maximum total length of refrigerant piping for all rooms is 30m.) A: Amount to add B: Length of refrigerant piping minus 20. (Total for all rooms) g=20X 1-2.
  • Page 17 Refrigerant Piping Work Precautions for Laying Refrigerant Piping Wall Be sure to place a cap. • Cautions on pipe handling Rain If no flare cap is 1) Protect the open end of the pipe against dust and moisture. available, cover the flare mouth 2) All pipe bends should be as gentle as possible.
  • Page 18: Pump Down Operation

    Pump Down Operation In order to protect the environment, be sure to pump down when relocating or disposing of the unit. 1) Remove the valve caps on the liquid and the gas stop valves at the pipes for rooms A and B.
  • Page 19 Wiring WARNING • Do not use tapped wires, stranded wires (CAUTION 1), extension cords, or starburst connections, as they may cause over- heating, electrical shock, or fire. • Do not use locally purchased electrical parts inside the product. (Do not branch the power for the drain pump, etc., from the ter- minal block.) Doing so may cause electric shock or fire.
  • Page 20 Wiring Safe handling of high voltage part • Turn the circuit breaker off and wait for 10 minutes before servicing. 1-1. To prevent electrical shock • Use tester to check that the voltage between ‘+’ and ‘-’ is 50V or less. (Refer to figure below for the locations to check.) •...
  • Page 21: Unified Wiring Diagram Legend

    Wiring Wiring diagram Unified Wiring Diagram Legend For applied parts and numbering, refer to the wiring diagram on the unit. Part numbering is by Arabic numbers in ascending order for each part and is represented in the overview below by symbol “*” in the part code. CIRCUIT BREAKER PROTECTIVE EARTH CONNECTION...
  • Page 22: Econo Mode Prohibition Setting

    ECONO Mode Prohibition Setting WARNING Always shut off the power supply breaker before starting. • This setting disables the input control signal from the remote controller. • Use this setting when you wish to block reception of input controls (cooling/heating) from indoor unit remote controllers. •...
  • Page 23: Night Quiet Mode Setting

    Night Quiet Mode Setting • If night quiet mode is to be used, initial settings must be made when the unit is installed. Explain night quiet mode, as described below, to the customer, and confirm whether or not the customer wants to use night quiet mode.
  • Page 24: Trial Operation And Testing

    Trial Operation and Testing • Before starting the test run, measure the voltage at the primary side of the safety breaker. • Check that all liquid and gas stop valves are fully open. • Check that piping and wiring all match. •...
  • Page 25: Piping Diagram

    Piping Diagram Piping diagram for 2MXM50M3V1B9, 2AMXM50M4V1B, 2AMXF50A2V1B Outdoor unit Branch pipe Heat exchanger Outdoor air temperature thermistor Motor-operated valve 7.9CuT Thermistor (liquid) Room ·A· Filter 6.4CuT (6.4CuT) 6.4CuT 7.9CuT Branch pipe Liquid stop valve Field piping 6.4CuT Liquid Motor-operated valve Thermistor (liquid) Room ·B·...
  • Page 28 3P423316-4P 2019.01...

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