Daikin VRV 5 RXYA8A7Y1B, Инструкция по установке и эксплуатации

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18 | Piping installation
Installer and user reference guide
114
RYMA5+RXYA8~20A7Y1B
VRV 5 heat pump
4P749918-1 – 2023.12
18.3.6 To insulate the refrigerant piping
After finishing the leak test and vacuum drying, 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 Humidity Minimum thickness
≤30°C 75% to 80% RH 15 mm
>30°C ≥80% RH 20 mm
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
b
e
a
d
a
c
f
a Liquid piping
b Gas piping
c Equalising piping
d Finishing tape
e Interconnection cable (F1/F2)
f Insulation
2 Install the service cover.
Inside the outdoor unit
To insulate the refrigerant piping, proceed as follows:
b
a
c
d
a Sealant
b Insulation
c Vinyl tape around curves
d Vinyl tape against sharp edges
1 Insulate the gas, liquid, and equalising piping.