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Piping installation
Installer and user reference guide
75
R R8T7V1B
VRV IV heat pump for indoor installation
4P499898-1B – 2021.12
WARNING
NEVER remove the pinched piping by brazing.
Any gas or oil remaining inside the stop valve may blow off the pinched piping.
6
Wait until all oil has dripped out before continuing with the connection of the
field piping in case the recovery was not complete.
16.2.7 To connect the refrigerant piping to the compressor unit
NOTICE
▪
Be sure to use the supplied accessory pipes when carrying out piping work in the
field.
▪
Be sure that the field installed piping does not touch other pipes, the bottom
panel or side panel.
1
Remove the service cover. See
"15.2.2 To open the compressor unit"
63].
2
Choose a piping route (a or b).
b
a
a
a
To the back
b
To the top
3
If you have chosen the piping route to the top:
a b c d
a
Cut the insulation (under the knockout hole).
b
Hit on the knockout hole, and remove it.
c
Remove the burrs.
d
Paint the edges and areas around the edges using repair paint to prevent rusting.
