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USE WRENCH TO GRIP MAIN BODY OF VALVE
1. Unscrew the cover from the packed valve on the
side of the outdoor unit (see Fig. 5.9).
2. Remove protective caps from ends of valves.
3. Align flared tubing end with each valve, and
tighten the flare nut as tightly as possible by
hand.
4. Using a properly sized wrench, grip the body of
the valve. Do not grip the nut that seals the
service valve (see Fig. 5.10).
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.
Repeat Steps 3 to 6 for the remaining pipe.
Torque Wrench Specification
Tubing Size
Wrench Size
Torque
IN
mm
mm
N-M
ft-lb
3/8
9.52
22
34-42
25-30
5/8
15.88
26
68-82
49-59
Instructions for Connecting Piping to Outdoor Unit
Excessive torque can damage the valve, flare nuts, tubing, and snap off other parts
of the valve.
