background image

11

English

Refrigerant Piping Work

2. 

Refrigerant piping

CAUTION

• Use the flare nut fixed to the main unit. (To prevent cracking of the flare nut by aged deterioration.)
• To prevent gas leakage, apply refrigeration oil only to the inner surface of the flare. (Use refrigeration oil for R410A.)
• Use torque wrenches when 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 torque wrenches.

Do not apply refrigeration 
oil to the outer surface.

Flare nut

Apply refrigeration oil to 
the inner surface of the 

flare.

Do not apply refrigeration oil to 

the flare nut to avoid tightening 
with excessive torque.

[Apply oil]

Torque wrench

Piping union

Flare nut

Spanner

[Tighten]

Flare nut tightening torque

Gas side

Liquid side

3/8 inch

1/4 inch

32.7-39.9N • m

(330-407kgf • cm)

14.2-17.2

N • m

(144-175

kgf • cm)

2-1. Caution on piping 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.

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

2-2. 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.

Gas pipe

Liquid pipe

Gas pipe 
insulation

Liquid pipe 
insulation

Finishing tape

Drain hose

Inter-unit wire

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)

3) Use separate thermal insulation pipes for gas and liquid refrigerant pipes.

01_EN_3P297034-1.indd   11

10/12/2011   11:37:08 AM

Содержание FTXS20K2V1B

Страница 1: ...1B DAIKIN ROOM AIR CONDITIONER INSTALLATION MANUAL R410A Split Series Installation manual Installationsanleitung Manuel dinstallation Installatiehandleiding Manual de instalaci n Manuale dinstallazion...

Страница 2: ...ltage 2006 95 EC Electromagnetic Compatibility 2004 108 EC 3SB65451 1 FTXS20K2V1B FTXS25K2V1B CTXS15K2V1B CTXS35K2V1B Shinri Sada Manager Quality Control Department DAIKIN TCF 015 N20 09 2011 DEKRA Ce...

Страница 3: ...ldg 2 4 12 Nakazaki Nishi Kita ku Osaka 530 8323 Japan FTXS20K2V1B FTXS25K2V1B CTXS15K2V1B CTXS35K2V1B 3SB65451 2 Shinri Sada Manager Quality Control Department 3SB65451 2 fm Page 1 Thursday October 2...

Страница 4: ...3SB65451 2 fm Page 2 Thursday October 27 2011 4 43 PM...

Страница 5: ...iring between the indoor and outdoor units position the wires so that the control box lid can be securely fastened Improper positioning of the control box lid may result in electric shocks fire or ove...

Страница 6: ...t in the path of direct sunlight 4 the unit is away from the source of heat or steam 5 there is no source of machine oil vapour this may shorten indoor unit life 6 cool warm air is circulated througho...

Страница 7: ...mark of the front grille there are 3 upper hooks Lightly pull the front grille toward you with one hand and push down on the hooks with the fingers of your other hand Upper hook mark area 3 locations...

Страница 8: ...Service lid is opening closing type Opening method 1 Remove the service lid screw 2 Pull out the service lid diagonally down in the direction of the arrow 3 Pull down The mounting plate should be ins...

Страница 9: ...ll hole 65mm 2 Boring a wall hole and installing wall embedded pipe For walls containing metal frame or metal board be sure to use a wall embedded pipe and wall cover in the feed through hole to preve...

Страница 10: ...ere for right side piping Remove pipe port cover here for right bottom piping 3 Pass the drain hose and refrigerant pipes through the wall hole then set the indoor unit on the mounting plate hooks by...

Страница 11: ...g the pipe path marking on the mounting plate 4 Pass drain hose and refrigerant pipes through the wall hole then set the indoor unit on mounting plate hooks using the markings at the top of indoor uni...

Страница 12: ...locally purchased electrical parts inside the product Do not branch the power for the drain pump etc from the terminal block Doing so may cause electric shock or fire Do not connect the power wire to...

Страница 13: ...the connection cord as shown in Figure 3 5 8 Install the electrical component box in its original position 1 Install the electrical component box 1 screw 2 Install the thermistor in its original posit...

Страница 14: ...ly available rigid polyvinyl chloride pipe nominal diameter 13mm Drain hose supplied with the indoor unit 18 Refrigerant Piping Work 1 Flaring the pipe end 1 Cut the pipe end with a pipe cutter 2 Remo...

Страница 15: ...rotect 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 Wall If no are cap is available cover the are mouth with tape t...

Страница 16: ...original operation mode when the circuit breaker is opened again Trial operation from remote controller 1 Press ON OFF button to turn on the system 2 Press TEMP button 2 locations and MODE button at...

Страница 17: ...Two dimensional bar code is a code for manufacturing 3P297034 1 M11B099 1111 HT 00_CV_3P297034 1 indd 2 10 31 2011 2 09 38 PM...

Отзывы: