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Table of Contents
- 1 Safety Precautions
- 2 Operation Limits
- 3 Precautions for Selecting the Location
- 4 Outdoor Unit Installation Drawings
- 5 Precautions on Installation
- 6 Outdoor Unit Installation
- 7 Pump down Operation
- 8 Facility Setting (Cooling at Low Outdoor Temperature)
- 9 Standby Electricity Saving
- 10 Trial Operation and Testing
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Table of Contents
Related Manuals for Daikin ARXM25M3V1B9
Summary of Contents for Daikin ARXM25M3V1B9
- Page 1 INSTALLATION MANUAL R32 Split Series Models ARXM25M3V1B9 ARXM35M3V1B9 RXM20M3V1B9 RXM25M3V1B9 RXM35M3V1B9...
- Page 2 3P475203-4A...
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Page 3: Safety Precautions
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. •... - Page 4 • This appliance is intended to be used by expert or trained users in shops, in light industry and on farms, or for commercial and household use by lay persons. • Sound pressure level is less than 70 dB(A). • Only use accessories, optional equipment and spare parts made or approved by DAIKIN. Accessories Accessories supplied with the outdoor unit:...
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Page 5: Operation Limits
Operation limits Use the system in the following temperature and humidity ranges for safe and effective operation. Cooling Heating Outdoor temperature –10~46°C –15~24°C Indoor temperature 18~32°C 10~30°C Indoor humidity ≤80% To avoid condensation and water dripping out of the unit. If the temperature or the humidity is beyond these conditions, safety devices may be put in action and the air conditioner may not operate. -
Page 6: Outdoor Unit Installation Drawings
Outdoor Unit Installation Drawings Max. allowable piping length Wrap the insulation pipe with the finishing tape from bottom Min. allowable piping length 1.5m to top. Max. allowable piping height Additional refrigerant required for refrigerant pipe 20g/m exceeding 10m in length. Gas pipe O.D. -
Page 7: Precautions On Installation
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... - Page 8 Outdoor Unit Installation Flaring the pipe end (Cut exactly at 1) Cut the pipe end with a pipe cutter. right angles.) Remove burrs. 2) Remove burrs with the cut surface facing Flaring downward so that the chips do not enter the pipe. Set exactly at the position shown below.
- Page 9 Outdoor Unit Installation 4-2 Selection of copper and heat insulation materials When using commercial copper pipes and fittings, observe the following: 1) Insulation material: Polyethylene foam Heat transfer rate: 0.041 to 0.052W/mK (0.035 to 0.045kcal/mh°C) Refrigerant gas pipe’s surface temperature reaches 110°C max. Choose heat insulation materials that will withstand this temperature.
- Page 10 Outdoor Unit Installation *1. Pipe length vs. vacuum pump run time. Pipe length Up to 15m More than 15m Run time Not less than 10 min. Not less than 15 min. *2. If the compound pressure gauge pointer swings back, refrigerant may have water content or a loose pipe joint may exists. Check all pipe joints and re-tighten nuts as needed, then repeat steps 2) through 4).
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Page 11: 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 cap from liquid stop valve and gas stop valve. Hexagonal 2) Carry out forced cooling operation. wrench 3) After 5 to 10 minutes, close the liquid stop valve with a hexagonal wrench. -
Page 12: Facility Setting (Cooling At Low Outdoor Temperature)
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. 1) 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 –20°C and start back up once the temperature rises again. - Page 13 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 • Check the voltage of max. DC50V between DB1 “+” and DB1 “-”. (Refer to the following figure.) ELECTRONIC EXPANSION THERMISTOR LEAD WIRE VALVE LEAD WIRE...
- Page 14 Wiring WARNING • Do not use tapped wires, stranded wires, extension cords, or starburst connections, as they may cause overheating, 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 terminal block.) Doing so may cause electric shock or fire.
- Page 15 Wiring Wiring diagram Unified Wiring Diagram Legend 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. CIRCUIT BREAKER CIRCUIT BREAKER PROTECTIVE EARTH...
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Page 16: Trial Operation And Testing
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. • In cooling mode, select the lowest programmable temperature; in heating mode, select the highest programmable temperature. - Page 20 3P386697-3G 2017.03...
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