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Precautions for Selecting the Location

1) Choose a place solid enough to bear the weight and vibration of the unit, where the operation noise will not be amplified.
2) Choose a location where the hot air discharged from the unit or the operation noise will not cause a nuisance to the neighbours of 

the user.

3) Avoid places near a bedroom and the like, so that the operation noise will cause no trouble.
4) There must be sufficient spaces for carrying the unit into and out of the site.
5) There must be sufficient space for air passage and no obstructions around the air inlet and the air outlet.
6) The site must be free from the possibility of flammable gas leakage in a nearby place.
7) Install units, power cords and inter-unit wire at least 3m away from television and radio sets. This is to prevent interference to 

images and sounds. (Noises may be heard even if they are more than 3m away depending on radio wave conditions.)

8) In coastal areas or other places with salty atmosphere of sulfate gas, corrosion may shorten the life of the domestic hot water 

heat pump.

9) Since drain flows out of the outdoor unit, do not place under the unit anything which must be kept away from moisture.

NOTE

Cannot be installed hanging from ceiling or stacked.

 CAUTION

When operating the domestic hot water heat pump in a low outdoor 
ambient temperature, be sure to follow the instructions described 
below.
• To prevent exposure to wind, install the outdoor unit with its suction 

side facing the wall.

• Never install the outdoor unit at a site where the suction side may be 

exposed directly to wind.

• To prevent exposure to wind, it is recommended to install a baffle 

plate on the air discharge side of the outdoor unit.

• In heavy snowfall areas, select an installation site where the snow 

will not affect the unit.

 Construct a large canopy

 Construct a pedestal

Install the unit high enough off the 
ground to prevent burying in snow.

Summary of Contents for ERWQ02AAV3

Page 1: ...INSTALLATION MANUAL R410A Split Series Models ERWQ02AAV3...

Page 2: ...pulations des 04 overeenkomstig de bepalingen van 05 siguiendo las disposiciones de 06 secondo le prescrizioni per 07 08 de acordo com o previsto em 09 10 under iagttagelse af bestemmelserne i 11 enli...

Page 3: ...nnections or wires Improper connections or securing of wires may result in abnormal heat build up or fire When wiring the power supply and connecting the wiring between the domestic hot water tank and...

Page 4: ...unctions smoke or fire Please instruct the customer to keep the area around the unit clean The temperature of refrigerant circuit will be high please keep the inter unit wire away from copper pipes th...

Page 5: ...heard even if they are more than 3m away depending on radio wave conditions 8 In coastal areas or other places with salty atmosphere of sulfate gas corrosion may shorten the life of the domestic hot w...

Page 6: ...there is a danger of the unit falling use foot bolts or wires 250mm from wall unit mm How to remove the stop valve cover Remove the screw on the stop valve cover Slide the cover downward to remove it...

Page 7: ...e foundation surface Outdoor Unit Installation 1 Installing outdoor unit 1 When installing the outdoor unit refer to Precautions for Selecting the Location and the Outdoor Unit Installation Drawings 2...

Page 8: ...rque wrenches when tightening the flare nuts to prevent damage to the flare nuts and gas leakage Align the centres of both flares and tighten the flare nuts 3 or 4 turns by hand Then tighten them full...

Page 9: ...charging hose which comes from gauge manifold to gas stop valve s service port 2 Fully open gauge manifold s low pressure valve Lo and completely close its high pressure valve Hi High pressure valve...

Page 10: ...is temperature 2 Be sure to insulate both the gas and liquid piping and to provide insulation dimensions as below 3 Use separate thermal insulation for gas and liquid refrigerant pipes Gas side Liquid...

Page 11: ...operation Using the outdoor unit pump down operation switch Push on SW1 with a screwdriver The operation will start Pump down operation will stop automatically after around 15 minutes To stop the ope...

Page 12: ...al block Observe the notes mentioned below when wiring to the power supply terminal block Precautions to be taken for power supply wiring CAUTION When connecting the connection wires to the terminal b...

Page 13: ...OUTDOOR Outdoor CONDENSER Condenser DISCHARGE Discharge C7 C8 Capacitor DB1 DB3 Diode bridge FU1 FU2 FU3 Fuse FU4 Field fuse IPM Intelligent power module L Live L803 L804 Reactor M1C Compressor motor...

Page 14: ...er is opened again 2 Test items Test items Symptom Check Domestic hot water tank and outdoor unit are installed properly on solid bases Fall vibration noise No refrigerant gas leaks Incomplete cooling...

Page 15: ......

Page 16: ...Copyright 2015 Daikin 4P410035 1 2015 05...

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