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R32 Split Series Installation manual English R32 Split series Installationsanleitung Deutsch Split-Baureihe R32 Manuel d’installation Français Série split R32 Models Montagehandleiding RXM42LV1B Nederlands R32 Split-systeem RXM50LV1B Manual de instalación RXJ50LV1B Español Serie Split R32 RXM42MV1B RXM50MV1B Manuale d’installazione Italiano Serie Multiambienti R32...
Safety Precautions Read the precautions in this manual This appliance is filled with R32. carefully before operating the unit. • The precautions described herein are classified as WARNING and CAUTION. They both contain important information regarding safety. Be sure to observe all precautions without fail. •...
Safety Precautions CAUTION • Do not install the air conditioner at any place where there is a danger of flammable gas leakage. In the event of a gas leakage, build-up of gas near the air conditioner may cause a fire to break out. •...
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Precautions for Selecting the Location CAUTION When operating the air conditioner in a low outdoor ambient temperature, be sure to follow the instructions described below. ● Construct a large canopy • To prevent exposure to wind, install the outdoor unit with its suction ●...
Installation Guidelines • 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 following installation patterns, the wall height on the outlet side should be 1200mm or less. Wall facing one side Wall facing two sides More than 100...
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Outdoor Unit Installation Flaring the pipe end 1) Cut the pipe end with a pipe cutter. (Cut exactly at right angles.) Remove burrs. 2) Remove burrs with the cut surface facing downward so that the chips do not enter the pipe. Flaring Set exactly at the position shown below.
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Outdoor Unit Installation Purging air and checking gas leakage • When piping work is completed, it is necessary to purge the air and check for gas leakage. WARNING • Do not mix any substance other than the specified refrigerant (R32) into the refrigeration cycle. •...
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Outdoor Unit Installation Refilling the refrigerant Check the type of refrigerant to be used on the machine nameplate. Fill from the gas pipe in liquid form. Important information regarding the refrigerant used factory refrigerant charge of the The filled out label must be adhered in the This product contains fluorinated greenhouse gases covered product: proximity of the product charging port...
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 cap from liquid stop valve and gas stop valve. 2) Carry out forced cooling operation. Hexagonal wrench 3) After 3 to 4 minutes, close the liquid stop valve with a hexagonal wrench.
Facility Setting (cooling at low outdoor temperature) This function is designed for facilities such as equipment or computer rooms. It is never to be used in a residence or office where people occupy the space. Cutting jumper 6 (J6) on the circuit board will expand the operation range down to –15°C. However it will stop if the outdoor temperature drops below –18°C and start back up once the temperature rises again.
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Wiring Service lid Power supply terminal block Shape wires so that the service lid and stop valve cover fit securely. Screw Observe the notes mentioned below when wiring to the power supply terminal block. Precautions to be taken for power supply wiring. CAUTION •...
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Wiring Wiring diagram For applied parts and numbering refer to the wiring diagram sticker supplied on the unit. Part numbering is realized by Arabic numbers in ascending order for each part and is represented in the overview below by symbol “*” in the part code. CONNECTION PROTECTIVE EARTH (SCREW) CONNECTOR...
Trial Operation and Testing Trial operation and testing 1-1 Measure the supply voltage and make sure that it falls in the specified range. 1-2 Trial operation should be carried out in either cooling or heating mode. For heat pump •...