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8

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.
3) After five to ten minutes, close the liquid stop valve with a hexagonal wrench.
4) After two to three minutes, close the gas stop valve and stop forced cooling operation.

How to force cooling operation mode

Using the indoor unit operation/stop button 

Press the indoor unit operation/stop button for at least five seconds. (Operation will start.)

• Forced cooling operation will stop automatically after around 15 minutes.

To force a test run to stop, press the indoor unit operation/stop button.

Using the main unit’s remote controller

1) Press the “operation/stop” button. (Operation will start.)
2) Press the temperature 

 button and the “operation select” button at the same time.

3) Press the “operation select” button twice.

(

 will be displayed and the unit will enter test run mode.)

4) Press the “operation select” button to return the operation mode to cooling.

• Test run mode will stop automatically after around 30 minutes. To force a test run to stop, press the operation/stop button.

 CAUTION

1) When pressing the switch, do not touch the terminal block. It has a high voltage, so doing so may cause electric shock.
2) After closing the liquid stop valve, close the gas stop valve within three minutes, then stop the forced operation.

Gas 
stop valve

Valve cap

Hexagonal 
wrench

Close

Liquid 
stop valve

3PEN395501-3G.book  Page 8  Thursday, June 2, 2016  8:07 AM

Summary of Contents for RX25KMV1B

Page 1: ...INSTALLATION MANUAL R410A Split Series Models RX25KMV1B RX35KMV1B 3PEN395501 3G book Page 1 Thursday June 2 2016 8 07 AM...

Page 2: ......

Page 3: ...ositivamente por B de acuerdo con el Certificado C 06 Nota delineato nel A e giudicato positivamente da B secondo il Certificato C 07 A B C 08 Nota tal como estabelecido em A e com o parecer positivo...

Page 4: ...receive no external stresses Incomplete connections or clamping may cause terminal overheating or fire After connecting interconnecting and supply wiring be sure to shape the cables so that they do n...

Page 5: ...nnot be installed hanging from ceiling or stacked CAUTION When operating the air conditioner in a low outdoor ambient temperature be sure to follow the instructions described below 1 To prevent exposu...

Page 6: ...pe exceeding 10m in length Be sure to add the proper amount of additional refrigerant Failure to do so may result in reduced perfomance The suggested shortest pipe length is 1 5m in order to avoid noi...

Page 7: ...nit refer to Precautions for Selecting the Location and the Outdoor Unit Installation Drawings 2 If drain work is necessary follow the procedures below 2 Drain work only for heat pump models If the dr...

Page 8: ...en 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 fully with the torqu...

Page 9: ...mes 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 subsequently requires n...

Page 10: ...lation dimensions as below 3 Use separate thermal insulation for gas and liquid refrigerant pipes Gas side Liquid side Gas pipe thermal insulation Liquid pipe thermal insulation O D 9 5mm O D 6 4mm I...

Page 11: ...ss the indoor unit operation stop button Using the main unit s remote controller 1 Press the operation stop button Operation will start 2 Press the temperature button and the operation select button a...

Page 12: ...match Tighten the terminal screws securely We recommend a flathead screwdriver be used to tighten the screws The screws are packed with the terminal board Observe the notes mentioned below when wiring...

Page 13: ...roblems with the work may cause heat and fires 3 Pull the wire and make sure that it does not disconnect Then fix the wire in place with a wire stop Strip wire end to this point Excessive strip length...

Page 14: ...T THERMISTOR E H HEATER RC RECEIVER F U FU FORCHARACTERISTICS REFERTOPCBINSIDEYOURUNIT FUSE S C LIMITSWITCH FG CONNECTOR FRAMEGROUND S L FLOATSWITCH H HARNESS S NPH PRESSURESENSOR HIGH H P LED V L PIL...

Page 15: ...al to ensure that all functions and parts such as louver movement are working properly The air conditioner requires a small amount of power in its standby mode If the system is not to be used for some...

Page 16: ...3PEN395501 3G book Page 1 Thursday June 2 2016 8 07 AM...

Page 17: ...3P395501 3G 2016 05 Copyright 2016 Daikin 3PEN395501 3G book Page 2 Thursday June 2 2016 8 07 AM...

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