background image

7

English

Outdoor Unit Installation

6.

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.

7.

Refrigerant piping work.

7-1 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.
(Bending radius should be 30 to 40mm or larger.)

7-2 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

Thickness 0.8mm

Thickness 10mm Min.

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.

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_3P182455-1.fm  Page 7  Wednesday, May 17, 2006  5:37 PM

Summary of Contents for RKS20E2V1B

Page 1: ...l R410A Split series Montaj kýlavuzlarý R410A Split serisi Installationsanleitung Split Baureihe R410A Manuel d installation Série split R410A Montagehandleiding R410A Split systeem Manual de instalación Serie Split R410A Manuale d installazione Serie Multiambienti R410A Εγχειρßδιο εγκατÜστασηò διαιροýìενηò σειρÜò R410A Manual de Instalação Série split R410A Рóêоводство по монтажó Серия R410A с ра...

Page 2: ... EMC97 4957 Daikin TCF 015 74736 KRQ EMC97 4957 Daikin TCF 015 74736 KRQ EMC97 4957 Daikin TCF 015 74736 KRQ EMC97 4957 Daikin TCF 015 74736 KRQ EMC97 4957 Daikin TCF 015 74736 KRQ EMC97 4957 Daikin TCF 015 74736 KRQ EMC97 4957 Daikin TCF 015 74736 KRQ EMC97 4957 Daikin TCF 015 74736 KRQ EMC97 4957 Daikin TCF 015 74736 KRQ EMC97 4957 Daikin TCF 015 74736 KRQ EMC97 4957 Daikin TCF 015 74736 KRQ EMC...

Page 3: ...ion may cause terminal overheating electrical shock or fire If any refrigerant has leaked out during the installation work ventilate the room The refrigerant produces a toxic gas if exposed to flames After all installation is complete check to make sure that no refrigerant is leaking out The refrigerant produces a toxic gas if exposed to flames When installing or relocating the system be sure to k...

Page 4: ...en if they 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 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 th...

Page 5: ...1 Allow space for piping and electrical servicing 250mm from wall unit mm O D 9 5mm Gas pipe Liquid pipe O D 6 4mm 20g m 15m 20m Max allowable length Max allowable height Additionl refrigerant required for refrigerant pipe exceeding 10m in length Be sure to add the proper amount of additional refrigerant Failure to do so may result in reduced perfomance How to remove the stop valve cover Remove th...

Page 6: ...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 Draw ings 2 If drain work is necessary follow the procedures below 2 Drain work Heat pump models 1 Use drain plug for drainage 2 If the drain port is covered by a mounting base or floor surface place addi tional ...

Page 7: ...em fully with the torque wrenches Use torque wrenches when tightening the flare nuts to prevent damage to the flare nuts and escaping gas 2 To prevent gas leakage apply refrigeration machine oil on both inner and outer surfaces of the flare Use refrigeration oil for R410A Cut exactly at right angles Remove burrs Set exactly at the position shown below A Flaring Die Check Flare s inner surface must...

Page 8: ...rom 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 no operation 3 Do vacuum pumping and make sure that the compound pressure gauge reads 0 1MPa 76cmHg 1 4 Close gauge manifold s low pressure valve Lo and stop vacuum pump Keep this state for a few minutes to...

Page 9: ...al 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 th...

Page 10: ...d 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 Facility Setting cooling at low outdoor temperature This function is limited only for ...

Page 11: ...he 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 to the power supply ter minal board Precautions to be taken for power supply wiring Use a round crimp style terminal for connection to the power supply ter minal board In case it cannot be used due to unavoidable r...

Page 12: ... sure to perform curling Problems 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 may cause electrical shock or leakage Good Wrong Stripping wire at terminal block ...

Page 13: ...tion for 3 minutes after it is turned off 1 3 Carry out the test operation in accordance with the operation manual 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 time after installation shut off the circuit breaker to eliminate unnecessary power con...

Page 14: ... 0607 HT 3P182455 1 M06B005 ...

Reviews: