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Gas pipe
Liquid pipe
Gas pipe
insulation
Liquid pipe
insulation
Finishing tape
Drain hose
Inter-unit wiring
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
Cautions on Pipe Handling
●
Protect the open end of the pipe against dust and moisture.
●
All pipe bends should be as gentle as possible. Use a pipe bender for bending.
(Bending radius should be 30 to 40 mm
or larger.)
Selection of Copper Pipes and Heat Insulation materials
When using commercial copper pipes and fittings, observe the following:
●
Insulation material: Polyethylene foam
Heat transfer rate: 0.041 to 0.052kW/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.
●
Be sure to insulate both the gas and liquid piping and to provide insulation dimensions as below.
●
Use separate thermal insulation pipes for gas and liquid refrigerant pipes.
Gas side
Liquid side
25/35 class
50/60 class
25/35/50/60 class
O.D. 9.5 mm
O.D. 12.7 mm
O.D. 6.4 mm
Thickness 0.8 mm
Gas pipe thermal insulation
25/35 class
50/60 class
25/35/50/60 class
I.D. 12-15 mm
I.D. 14-16 mm
I.D. 8-10 mm
Thickness 10 mm Min.
Liquid pipe
thermal insulation
REFRIGERANT PIPING WORK
Summary of Contents for CDKS25BVMB
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