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English

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Safety Precautions

• 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. 

• Meaning of WARNING and CAUTION notices 

WARNING.....Failure to follow these instructions properly may result in personal injury or loss of life. 

CAUTION......Failure to observe these instructions properly may result in property damage or personal injury, which 

may be serious depending on the circumstances. 

• The safety marks shown in this manual have the following meanings: 

• After completing installation, conduct a trial operation to check for faults and explain to the customer how to operate  

the air conditioner and take care of it with the aid of the operation manual.

• The English text is the original instruction. Other languages are translations of the original instructions. 

Be sure to follow the instructions. 

Be sure to establish an earth connection. 

Never attempt. 

WARNING

• Ask your dealer or qualified personnel to carry out installation work. 

Do not attempt to install the air conditioner yourself. Improper installation may result in water leakage, electric shocks or fire. 

• Install the air conditioner in accordance with the instructions in this installation manual. 

Improper installation may result in water leakage, electric shocks or fire. 

• Be sure to use only the specified accessories and parts for installation work. 

Failure to use the specified parts may result in the unit falling, water leakage, electric shocks or fire. 

• Install the air conditioner on a foundation strong enough to withstand the weight of the unit. 

A foundation of insufficient strength may result in the equipment falling and causing injury. 

• Electrical work must be performed in accordance with relevant local and national regulations and with instructions 

in this installation manual. Be sure to use a dedicated power supply circuit only. 

Insufficiency of power circuit capacity and improper workmanship may result in electric shocks or fire. 

• Use a cable of suitable length. 

Do not use tapped wires or an extension lead, as this may cause overheating, electric shocks or fire. 

• Make sure that all wiring is secured, the specified wires are used, and that there is no strain on the terminal 

connections 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 indoor and outdoor units, position the wires 

so that the control box cover can be securely fastened. 

Improper positioning of the control box cover may result in electric shocks, fire or over heating terminals. 

• If refrigerant gas leaks during installation, ventilate the area immediately. 

Toxic gas may be produced if the refrigerant comes into contact with fire. 

• After completing installation, check for refrigerant gas leakage.  

Toxic gas may be produced if the refrigerant gas leaks into the room and comes into contact with a source of fire, such as a fan heater, 
stove or cooker. 

• When installing or relocating the air conditioner, be sure to bleed the refrigerant circuit to ensure it is free of air, 

and use only the specified refrigerant (R32). 

The presence of air or other foreign matter in the refrigerant circuit causes abnormal pressure rise, which may result in equipment damage 
and even injury. 

• During installation, attach the refrigerant piping securely before running the compressor. 

If the refrigerant pipes are not attached and the stop valve is open when the compressor is run, air will be sucked in, causing abnormal 
pressure in the refrigeration cycle, which may result in equipment damage and even injury. 

• During pump-down, stop the compressor before removing the refrigerant piping. 

If the compressor is still running and the stop valve is open during pump-down, air will be sucked in when the refrigerant piping is removed, 
causing abnormal pressure in the refrigeration cycle, which may result in equipment damage and even injury. 

• Be sure to earth the air conditioner. 

Do not earth the unit to a utility pipe, lightning conductor or telephone earth lead. Imperfect earthing may result in electric shocks. 

• Be sure to install an earth leakage breaker. 

Failure to install an earth leakage breaker may result in electric shocks or fire. 

• If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified 

persons in order to avoid a hazard.

Read the precautions in this manual 
carefully before operating the unit.

This appliance is filled with R32.

3PEN386697-3G.book  Page 1  Monday, April 24, 2017  11:02 AM

Summary of Contents for ARXM25M3V1B9

Page 1: ...INSTALLATION MANUAL R32 Split Series Models ARXM25M3V1B9 ARXM35M3V1B9 RXM20M3V1B9 RXM25M3V1B9 RXM35M3V1B9 3PEN386697 3G book Page 1 Monday April 24 2017 11 02 AM ...

Page 2: ... da B secondo il Certificato C 07 Σημείωση όπως καθορίζεται στο A και κρίνεται θετικά από το B σύμφωνα με το Πιστοποιητικό C 08 Nota tal como estabelecido em A e com o parecer positivo de B de acordo com o Certificado C 09 Примечание как указано в A и в соответствии с положительным решением B согласно Свидетельству C 10 Bemærk som anført i A og positivt vurderet af B i henhold til Certifikat C 11 ...

Page 3: ...e specified wires are used and that there is no strain on the terminal connections 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 indoor and outdoor units position the wires so that the control box cover can be securely fastened Improper positioning of the control box cover may resul...

Page 4: ...he outdoor unit be used as a shelter by small animals Small animals making contact with electrical parts can cause malfunctions 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 that are not thermally insulated This appliance is intended to be used by expert or...

Page 5: ... 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 air conditioner 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 ceili...

Page 6: ...e 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 How to attach the stop valve cover Insert the upper part of the stop valve cover into the outdoor unit Tighten the screws Stop valve cover Allow space for piping and electrical servicing Be sure to add the proper amount of additional refrig...

Page 7: ... 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 If drain work is necessary follow the procedures below 2 Drain work 1 Use drain plug for drainage 2 If the drain port is covered by a mounting base or floor surface place additional foot bases of at least 30mm in height under t...

Page 8: ...might break down Align the centres of both flares and tighten the flare nuts 3 or 4 turns by hand Then tighten them fully with the torque wrenches 4 1 Cautions on pipe handling 1 Protect the open end of the pipe against dust and moisture 2 All pipe bends should be as gentle as possible Use a pipe bender for bending A A Cut exactly at right angles Remove burrs Set exactly at the position shown belo...

Page 9: ...specified tightening torque Gas side Liquid side Gas pipe thermal insulation Liquid pipe thermal insulation O D 9 5mm O D 6 4mm I D 12 15mm I D 8 10mm Minimum bend radius Thickness 10mm Min 30mm or more Thickness 0 8mm C1220T O 1 Connect projection side of 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 complete...

Page 10: ...itional refrigerant amount charged in the field and the total refrigerant charge on the refrigerant charge label supplied with the product Important information regarding the refrigerant used This product contains fluorinated greenhouse gases Do not vent gases into the atmosphere Refrigerant type GWP value factory refrigerant charge of the product see unit name plate additional refrigerant amount ...

Page 11: ... cooling operation and the outside temperature is 10 C or lower the safety device might start preventing opera tion In this situation warm the outside temperature thermistor on the outdoor unit to 10 C or warmer Operation will start CAUTION During pump down operation do not touch the terminal block It has a high voltage so doing so may cause electric shock After closing the liquid stop valve close...

Page 12: ...y electricity saving mode thus reducing the power consumption of the air conditioner CAUTION The standby electricity saving function cannot be used for models other than the specified ones Procedure for turning on standby electricity saving function 1 Check that the main power supply is turned off Turn it off if it has not been turned off 2 Remove the stop valve cover 3 Disconnect the selective co...

Page 13: ...ax DC50V between DB1 and DB1 Refer to the following figure WARNING All circuitry including thermistor is subject to power supply voltage DB1 S20 ELECTRONIC EXPANSION VALVE LEAD WIRE S90 THERMISTOR LEAD WIRE S40 OL LEAD WIRE S70 FAN MOTOR LEAD WIRE S80 REVERSING SOLENOID VALVE LEAD WIRE LED DC DC MULTIMETER DC VOLTAGE RANGE 3PEN386697 3G book Page 11 Monday April 24 2017 11 02 AM ...

Page 14: ...rminal block Precautions to be taken for power supply wiring CAUTION When connecting the connection wires to the terminal block using a single core wire be sure to perform curling Problems with the work may cause heat and fires If the stranded wires must be used make sure to use the round crimp style terminal for connection to the power supply terminal block Place the round crimp style terminals o...

Page 15: ...T THERMISTOR E H HEATER RC RECEIVER F U FU FOR CHARACTERISTICS REFER TOPCBINSIDE YOUR UNIT FUSE S C LIMIT SWITCH FG CONNECTOR FRAMEGROUND S L FLOAT SWITCH H HARNESS S NPH PRESSURESENSOR HIGH H P LED V L PILOT LAMP LIGHT EMITTINGDIODE S NPL PRESSURESENSOR LOW HAP LIGHT EMITTINGDIODE SERVICEMONITOR GREEN S PH HPS PRESSURESWITCH HIGH HIGH VOLTAGE HIGH VOLTAGE S PL PRESSURESWITCH LOW IES INTELLIGENT E...

Page 16: ... opened again 2 Fault diagnosis by LED on outdoor unit PCB NOTE Error detection should be done using the remote control fault diagnosis 3 Test items Diagnosis LED is flashing Normal check the indoor unit LED is ON Turn the power OFF and then ON again and check the LED within approx 3 min utes If the LED display recurs the outdoor unit PCB is fault LED is OFF CASE1 Supply voltage For power saving C...

Page 17: ...3PEN386697 3G book Page 1 Monday April 24 2017 11 02 AM ...

Page 18: ...3PEN386697 3G book Page 2 Monday April 24 2017 11 02 AM ...

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Page 20: ...3P386697 3G 2017 03 Copyright 2017 Daikin 3PEN386697 3G book Page 1 Monday April 24 2017 11 02 AM ...

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