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Daikin FTX35JV1B [13/15] Refrigerant piping work
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11 ■English
Refrigerant Piping Work
2.
Refrigerant piping.
CAUTION
1) Use the flare nut fixed to the main unit. (To prevent cracking of the flare nut by aged deterioration.)
2) To prevent gas leakage, apply refrigeration oil only to the inner surface of the flare. (Use refrigeration oil for R410A.)
3) 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.
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.
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 0.045 kcal/(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 dimen-
sions 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)
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 avoid
tightening with over 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
l
m
(330-407kgf
l
cm)
14.2-17.2N
l
m
(144-175kgf
l
cm)
Gas pipe
Liquid pipe
Gas pipe
insulation
Liquid pipe
insulation
Finishing tape
Drain hose
Inter-unit wiring
01_EN_3P207973-1D.fm Page 11 Friday, September 4, 2009 10:44 AM
Содержание
- Installation manual 1
- Models ftx20gv1b ftk20gv1b ftx25gv1b ftk25gv1b ftx35gv1b ftk35gv1b ftx20jv1b ftx25jv1b ftx35jv1b 1
- R410a split series 1
- Umeda center bldg 2 4 12 nakazaki nishi kita ku osaka 530 8323 japan 2
- Caution 3
- English 3
- Safety precautions 3
- Warning 3
- Accessories 4
- Choosing an installation site 4
- English 2 4
- Indoor unit 4
- Wireless remote controller 4
- Caution 5
- How to set the different addresses 5
- Installation tips 5
- Removing and installing front grille 5
- Removing and installing front panel 5
- When there is no work space because the unit is close to ceiling 5
- English 4 6
- Indoor unit installation drawings 6
- English 7
- Indoor unit installation 7
- Installing the mounting plate 7
- Boring a wall hole and installing wall embedded pipe 8
- English 6 8
- Installing indoor unit 8
- Right side right back or right bottom piping 8
- 2 left side left back or left bottom piping 9
- 3 wall embedded piping 9
- Attachment on the right side factory default 9
- Caulk this hole with putty or caulking material bind with vinyl tape 9
- Do not apply lubricating oil refrigeration oil when inserting application of causes deterioration and drain leakage of the plug 9
- Drain hose 9
- English 9
- How to replace the drain plug and drain hose 9
- Indoor unit fixing screw insulation fixing screw 9
- Indoor unit installation 9
- Insert a hexagon wrench 4mm 9
- Left bottom piping 9
- Left side piping left back piping 9
- Mounting plate 9
- No gap 9
- Remove pipe port cover here for left side piping 9
- Replacing onto the left side 9
- Right side left side 9
- The drain hose is on the back of the unit 9
- Wrap insulating tape around the bent portion of refrigerant pipe overlap at least half the width of the tape with each turn 9
- _en_3p207973 1d fm page 7 friday september 4 2009 10 44 am 9
- 1 remove the front grille 2 screws 5 2 remove the service lid 1 screw 5 3 remove the cover from the indoor unit electrical component box figure 1 5 4 remove the indoor unit electrical component box 10
- English 8 10
- Warning 10
- When connecting to a wired remote controller 10
- Wiring 10
- 5 8 install the indoor unit electrical component box in its original position 11
- 5 prepare the accessory separate product figure 2 11
- 6 install the cover of the electrical component box in its original position figure 3 5 7 install the accessory separate product figure 3 11
- 9 install the front grille in its original position 2 screws 5 10 install the service lid 1 screw 11
- Cut outs for the connection cords 11
- English 11
- Figure 2 preparing the accessory 11
- Figure 3 installing the accessory 11
- Indoor unit installation 11
- Drain piping 12
- Flaring the pipe end 12
- Refrigerant piping work 12
- Warning 12
- Caution 13
- Refrigerant piping 13
- Refrigerant piping work 13
- Test items 14
- Trial operation and testing 14
- P207973 1d m07b030c 15
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