Figure 12: Brazed access valve
Figure 13: Use two wrenches to attach PSHC to access valve
Mounting the PSHC on the access valve
1. Mount the PSHC onto the access valve. Turn the PSHC housing clockwise by hand until it is hand-
tight. Use 7/16 in. and 9/16 in. wrenches in tandem to tighten the PSHC connection. See Figure 13.
Important:
Do not apply more than 9 ft•lb (12 N•m) of torque to the flare nuts on pressure
connection line fittings. Overtightening or applying more than 9 ft•lb (12 N•m) of torque may
damage fitting threads and void the warranty.
2. Attach the wiring harness (10 Pin connector) to the PSHC as shown in Figure 13.
Note:
If the PSHC is located in a wet or potentially wet environment, apply silicone dielectric
grease of any grade inside the 10 Pin connector of the wiring harness.
9
Quick Response Expansion Valve and Precision Superheat Controller Installation Guide
