(c) PRECAUTIONS WHEN CONNECTING PIPES:Connections will go more smoothly if the
large pipe is connected first, followed by the
small pipe. Hold the nipple and the flare
nut straight and lightly turn the nut two or
three turns by hand to ensure that the
threads are aligned.
Then tighten to the specified torque using a
wrench. In particular, when tightening 1/4"
diameter flare nuts, use the specified torque
wrench
Fan Coil!Align the center of both flare fittings
and tighten the flare nut with your
hand.
!With a torque wrench tighten the
flare nut fully.
Condensing Units!Align the center of the flare nut of the
liquid line to the liquid valve. Tighten
the flare nut, first with your hand and
then fully tighten with the torque
wrench.
!Align the center of the flare nut of the
gas line to the gas valve. Tighten
the flare nut with your hand. After
purging, tighten it fully with a torque
wrench and check all connections for
leaks with soap solution.
First, 2 or 3 turns by hand
Nipple
Flair nut
Fix in place. Always look at arrow on
torque wrench to
determine direction.
Torque wrench
Wrench
Torque wrench
Outdoor unit Liquid side piping
Gas side piping
Torque wrench