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Daikin FLXS25BAVMB [13/15] Refrigerant piping work
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11 ■English
Refrigerant Piping Work
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 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
20/25/35 class 50/60 class 20/25/35 class 50/60 class
O.D. 9.5mm O.D. 12.7mm O.D. 6.4mm I.D. 12-15mm I.D. 14-16mm I.D. 8-10mm
Minimum bend radius Thickness 10mm Min.
30mm or more 40mm or more 30mm or more
Thickness 0.8mm (C1220T-O)
Gas pipe
Liquid pipe
Gas pipe
insulation
Liquid pipe
insulation
Finishing tape
Drain hose
Inter-unit wiring
01_EN_3P171284-2D.fm Page 11 Monday, August 23, 2010 2:33 PM
Содержание
- Flxs25bvmb flks25bvmb flxs35bvmb flks35bvmb flxs50bvmb flks50bvmb flxs60bvmb flks60bvmb flx25bvmb flk25bvmb flx35bvmb flk35bvmb flxs25bavmb flks25bavmb flxs35bavmb flks35bavmb flxs50bavmb flks50bavmb flxs60bavmb flks60bavmb 1
- Installation manual 1
- Models 1
- R410a split series 1
- Daikin industries ltd 2
- Low voltage 2006 95 ec electromagnetic compatibility 2004 108 e 2
- Sb64526 4 2
- Shinri sada manager quality control department 1st of nov 2008 2
- 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
- Before installing the indoor unit 5
- English 5
- How to the different addresses 5
- In case of ceiling suspended use 5
- Installation tips 5
- Perform the following before installing the indoor unit 5
- Air filters 6
- B photocatalytic deodorizing filter c air purifying filter 6
- B photocatalytic deodorizing filter or c air purifying filter 6
- English 4 6
- Hold the recessed parts of the frame and unhook the four claws 6
- Indoor unit installation drawings 6
- Wrap the insulation pipe with the finishing tape from bottom to top 6
- Ceiling mounting 7
- English 7
- Indoor unit installation drawings 7
- Wall mounting 7
- Ceiling mounting 8
- English 6 8
- Indoor unit installation 8
- Installing indoor unit 8
- Installing the suspension bolt 8
- English 9
- Indoor unit installation 9
- Installation 9
- Wall mounting 9
- Commonality between ceiling mounting and wall mounting 10
- English 8 10
- Installing indoor unit 10
- Warning 10
- Wiring 10
- Drain piping 11
- English 11
- Indoor unit installation 11
- Insulation of refrigerant pipes 11
- 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 12
- Caution 12
- Cut the pipe end with a pipe cutter 2 remove burrs with the cut surface facing down ward so that the chips do not enter the pipe 3 put the flare nut on the pipe 4 flare the pipe 5 check that the flaring is properly made 12
- Do not use mineral oil on flared part 2 prevent mineral oil from getting into the system as this would reduce the lifetime of the units 3 never use piping which has been used for previous installations only use parts which are delivered with the unit 4 do never install a drier to this r410a unit in order to guarantee its lifetime 5 the drying material may dissolve and damage the system 6 incomplete flaring may cause refrigerant gas leakage 12
- Flaring the pipe end 12
- 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 12
- Refrigerant piping 12
- Refrigerant piping work 12
- 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 12
- Warning 12
- 2 selection of copper and heat insulation materials 13
- English 13
- Refrigerant piping work 13
- Test items 14
- Trial operation and testing 14
- Trial operation from remote controller 14
- P171284 2d m02b074j 15
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