HTW IX39B3 Serie Manuel D'installation page 74

Instructions for Connecting Piping
to Outdoor Unit
Unscrew the cover from the packed valve on
1.
the side of the outdoor unit. (See Fig. 5.9)
Fig. 5.9
Remove protective caps from ends of valves.
2.
Align flared pipe end with each valve, and
3.
tighten the flare nut as tightly as possible by
hand.
Using a spanner, grip the body of the valve.
4.
Do not grip the nut that seals the service
valve. (See Fig. 5.10)
USE SPANNER TO GRIP MAIN
BODY OF VALVE
Torque from tightening the flare nut can snap
off other parts of valve.
Valve
cover
5.
While firmly gripping the body of the valve,
use a torque wrench to tighten the flare nut
according to the correct torque values.
6.
Loosen the flaring nut slightly, then tighten
again.
7.
Repeat Steps 3 to 6 for the remaining pipe.
72
Fig. 5.10