18
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Piping installation
Installer and user reference guide
95
REMA5+REYA8~20A7Y1B
VRV 5 heat recovery
4P687640-1 – 2022.07
A
B
±
3
0°
a
b
c
d
a
a
Horizontal surface
b
Refnet joint mounted vertically
c
Refnet joint mounted horizontally
d
Header
18.2.8 To protect against contamination
Protect the piping as described in the following table to prevent dirt, liquid or dust
from entering the piping.
Unit
Installation period
Protection method
Outdoor unit
>1 month
Pinch the pipe
<1 month
Pinch or tape the pipe
Indoor unit
Regardless of the period
Seal the piping and wiring intake holes using sealing material (field supply),
otherwise the capacity of the unit will drop and small animals may enter the
machine.
Example:
passing piping out through the front.
a
a
Seal up the opening (area marked in grey).
▪
Only use clean pipes.
▪
Hold the pipe end downwards when removing burrs.
▪
Cover the pipe end when inserting it through a wall, to prevent dust and/or
particles entering the pipe.
