Finishing The Outdoor Unit Installation; To Insulate The Refrigerant Piping - Daikin RXYSA4A7V1B Installer And User Manual

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Finishing the outdoor unit installation

21 Finishing the outdoor unit installation
In this chapter

21.1 To insulate the refrigerant piping

Installer and user reference guide
112
21.1 To insulate the refrigerant piping........................................................................................................................................... 112
21.2 To close the outdoor unit ....................................................................................................................................................... 115
21.3 To check the insulation resistance of the compressor .......................................................................................................... 115
After finishing the charging procedure, the piping must be insulated. Take into
account the following points:
▪ Make sure to insulate the connection piping and refrigerant branch kits entirely.
▪ Be sure to insulate the liquid and gas piping (for all units).
▪ Use heat resistant polyethylene foam which can withstand a temperature of 70°C
for liquid piping and polyethylene foam which can withstand a temperature of
120°C for gas piping.
▪ Reinforce the insulation on the refrigerant piping according to the installation
environment.
Ambient temperature
≤30°C
>30°C
Between outdoor and indoor unit
NOTICE
It is recommended that the refrigerant piping between indoor and outdoor unit is
installed in a ducting or the refrigerant piping is wrapped with finishing tape.
1 Insulate and fix the refrigerant piping and cables as follows:
d c
a
b
g
a Gas pipe
b Gas pipe insulation
c Interconnection cable
d Field wiring (if applicable)
e Liquid pipe
f Liquid pipe insulation
g Finishing tape
2 Install the service cover.
Inside the outdoor unit
To insulate the refrigerant piping, proceed as follows:
Humidity
75% to 80% RH
≥80% RH
e
f
Minimum thickness
15 mm
20 mm
RXYSA4~6A7V/Y1B
VRV 5-S system air conditioner
4P600330-1A – 2020.07