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8

English

Outdoor Unit Installation

*1. Pipe length vs. vacuum pump run time.  

*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).

6.

Charging refrigerant

Check the type of refrigerant to be used (on the machine nameplate).

Fill from the gas pipe in liquid form.

1-1. Charging additional refrigerant

• If the total length of refrigerant piping exceeds 10m, add refrigerant.
• Subtract 10m from the overall length and write the result in column below and count amount of additional refrigerant.

1-2. Completely recharging refrigerant

The total amount that must be added is the amount listed on the machine nameplate and the amount of the additional refrigerant 
shown above.

Precautions for compressor

Pipe length

Up to 15m

More than 15m

Run time

Not less than 10 min.

Not less than 15 min.

WARNING

Electric shock hazard 

• Use this compressor on a grounded system only.
• Turn power OFF before servicing.
• Replace terminal cover before applying power.

Injury hazard

• Wear protective goggles.

Explosion or fire hazard

• Use tubing cutter to remove compressor.
• Do NOT use torch. System contains refrigerant under pressure.
• Do NOT drive under air or vacuum condition.
• Use only approved refrigerants and lubricants.

Burn hazard 

• Do NOT touch with bare hands during or immediately following operation.

20g x

m=

g

6

5

Please fill in with indelible ink, 

  the factory refrigerant charge of the product, 

tCO

2

eq calculation according to the formula (rounded up 

to 2 decimal places)

  the additional 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 
charged in the field 

total refrigerant charge 

greenhouse gas emissions

 of the 

total refrigerant charge expressed 
as tonnes CO

2

-equivalent 

outdoor unit

refrigerant cylinder and manifold 
for charging

The filled out label must be adhered in the 
proximity of the product charging port 
(e.g. onto the inside of the stop valve cover).

GWP = global warming potential 

(1)

(1)

Contains fluorinated greenhouse gases

2

1

1

1

2

2

kg

tCO

2

eq

1000

GWP × kg

=

=

+

kg

=

kg

=

GWP: 675

675

R32

R32

NOTE

National implementation of EU regulation on certain fluorinated greenhouse gases may require to provide the appropriate official national language on the unit. 
Therefore an additional multilingual fluorinated greenhouse gases label is supplied with the unit. Sticking instructions are illustrated on the backside of that label.

NOTICE

In Europe, the 

greenhouse gas emissions 

of the total refrigerant charge in the system (expressed as tonnes CO

-equivalent) 

is  used  to  determine  the  maintenance intervals. Follow the applicable legislation.

Formula to calculate the greenhouse gas emissions:

GWP value of the refrigerant × Total refrigerant charge [in kg] / 1000

Use the GWP value mentioned on the refrigerant charge label. This GWP value is based on the 4th IPCC 

Assessment 

Report.  The  GWP  value  mentioned  in  the manual might be outdated (i.e., based on the 3rd IPCC Assessment Report).

3PEN386697-3G.book  Page 8  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 ...

Page 19: ...3PEN386697 3G book Page 3 Monday April 24 2017 11 02 AM ...

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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