Pioneer WAS Series Installation Manual page 28

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 the valve ends.
2.
Align flared pipe end with each valve, and
3.
tighten the flare nut as tightly as possible by
hand.
Using a spanner, grab the body of the valve.
4.
Do not grab the nut that seals the service
valve. (See Fig. 5.10)
 
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USE SPANNER TO GRAB THE
BODY OF THE SERVICE VALVE
Torque from tightening the flare nut can snap
off other parts of valve.
Valve cover
While firmly gripping the body of the valve,
5.
use a torque wrench to tighten the flare nut
according to the correct torque values.
Loosen the flaring nut slightly, then tighten
6.
again.
Repeat Steps 3 to 6 for the remaining pipe.
7.
Fig. 5.10