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English

Outdoor Unit Installation

5.

Refilling the refrigerant.

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

Precautions when adding R410A
Fill from the liquid pipe in liquid form.

It is a mixed refrigerant, so adding it in gas form may cause the refrigerant composition to change, preventing normal operation.

1) Before filling, check whether the cylinder has a siphon attached or not. (It should have something like “liquid filling siphon 

attached” displayed on it.)

• Be sure to use the R410A tools to ensure pressure and to prevent foreign objects entering.

6.

Refrigerant piping work.

6-1 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.

6-2 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.

2) Be sure to insulate both the gas and liquid piping and to provide insulation 

dimensions as below.

3) Use separate thermal insulation pipes 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.D. 12-15mm

I.D. 8-10mm

Minimum bend radius

Thickness 10mm Min.

30mm or more

Thickness 0.8mm (C1220T-O)

Filling a cylinder with an attached siphon

Stand the cylinder upright when 
filling.

There is a siphon pipe inside, so the 
cylinder need not be upside-down to 
fill with liquid.

Filling other cylinders

Turn the cylinder upside-down 
when filling.

3

5

6

2

1

4

Please fill in with indelible ink, 

n

1

  the factory refrigerant charge of the product, 

n

2

  the additional refrigerant amount charged in the field and

n

1  +  2

  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 covered by 
the Kyoto Protocol. Do not vent gases into the atmosphere.

Refrigerant type:

R410A

GWP

(1)

 value:

1975

 

(1) 

GWP = global warming potential 

1

factory refrigerant charge of the 
product: 
see unit name plate 

2

additional refrigerant amount 
charged in the field 

3

total refrigerant charge 

4

Contains fluorinated greenhouse 
gases covered by the Kyoto 
Protocol

5

outdoor unit

6

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).

Wall

If no flare cap is 
available, cover 
the flare mouth 
with tape to keep 
dirt or water out.

Be sure to 
place a cap.

Rain

Gas pipe

Liquid pipe

Gas pipe 
insulation

Liquid pipe 
insulation

Finishing tape

Drain hose

Inter-unit wiring

01_EN_3P232550-11C.fm  Page 7  Thursday, September 16, 2010  11:39 AM

Summary of Contents for RXL25G3V1B

Page 1: ...ON MANUAL Installation manual Installationsmanual Installationshandbok Installasjonsh ndbok Asennusohje Installierungshandbuch Manuel d installation Instrukcja montazu Installatiehandleiding R410A Spl...

Page 2: ...2010 KEMA Quality B V 74736 KRQ EMC97 4957 Umeda Center Bldg 2 4 12 Nakazaki Nishi Kita ku Osaka 530 8323 Japan DAIKIN INDUSTRIES LTD 3SB64417 12H RXL20G3V1B RXL25G3V1B RXL35G3V1B Shinri Sada Manager...

Page 3: ...ntrol box lid 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 come...

Page 4: ...are more than 3 meter 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 dra...

Page 5: ...unit to install Tighten the screws Stop valve cover O D 9 5mm Gas pipe Liquid pipe O D 6 4mm 20g m 15m 20m Max allowable length Max allowable height Additional refrigerant required for refrigerant pip...

Page 6: ...of the foundation bolts Prepare four sets of M8 or M10 foundation bolts nuts and washers each which are available on the market It is best to screw in the foundation bolts until their length are 20mm...

Page 7: ...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 torque wrenches Cut...

Page 8: ...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 no operation 3 Do vacuum pumping and...

Page 9: ...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 Filling a cylinder with an attached siphon Stand the cylinder uprigh...

Page 10: ...s 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...

Page 11: ...e heat exchanger of the unit is exposed to direct wind provide a windbreak wall 2 Intermittent noises may be produced by the indoor unit due to the outdoor fan turning on and off when using facility s...

Page 12: ...ring to the power supply terminal board Precautions to be taken for power supply wiring Use a round crimp style terminal for connection to the power supply terminal board In case it cannot be used due...

Page 13: ...in its standby mode If the system is not to be used for some time after installation shut off the circuit breaker to eliminate unnecessary power consumption If the circuit breaker trips to shut off t...

Page 14: ...1010 HT 3P232550 11C M10B236 Two dimensional bar code is a code for manufacturing 00_CV_3P232550 11C fm Page 2 Thursday September 16 2010 11 38 AM...

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