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Section 4:
Operating Features & Functions
Copyright © 2011 Haskris Company
26
www.haskris.com
Version R1600-X-R407C-XXX Instruction Manual Rev00
The valve has been preset for a maximum operating pressure of 50psi. For
installations with high head pressure loss due to long piping runs or multiple
elbows, the water pressure bypass/relief valve setting may need to be increased.
An adjustment screw is located under the brass cap on top of the valve.
•
Open needle valve at inlet to pressure gauge. If this is already open, close the
supply valve isolation valve. Page 12, fig 2.10.
•
Remove brass valve stem cap.
•
Loosen the locking nut.
•
Turn the screw inward (clockwise) to increase the pressure required to bypass
water
-OR-
Turn the screw outward (counterclockwise) to reduce pressure required to
bypass glycol solution. When reducing pressure, make sure that you do not
completely remove the screw; this prevents the valve from leaking.
•
Tighten the locking nut.
•
Replace brass valve stem cap. Make sure o-ring is in place and not pinched.
•
Open the supply side of the isolation valve
•
Close needle valve at inlet to pressure gauge
4
4
4
4.3
.3
.3
.3 Refrigerant Sight Glass/Moisture Indicator
Refrigerant Sight Glass/Moisture Indicator
Refrigerant Sight Glass/Moisture Indicator
Refrigerant Sight Glass/Moisture Indicator
There are two liquid-line sight glass/moisture indicators that have
been installed to help you identify when the system is low on
refrigerant, and to assist the refrigeration mechanic when recharging
the system.
The sight glass/moisture indicator is located behind the front panel,
near the bottom of the midpoint of the frame. The sight glass/moisture