Closing valve B.
Cracking open valve C.
4. Charge liquid refrigerant into high side by:
Connecting refrigerant cylinder to E.
Closing valve A.
Opening valve B.
Mid-positioning valve C.
5.Build up pressure in low side for control setting or to test for leaks by:
Sealing E with seal cap.
Opening valve A.
Close valve C.
PRESSURE AND COMPOUND GAUGE RECALIBRATION
INSTRUCTIONS:
The refrigeration gauge has been calibrated at the factory; however,
due to handling and shipping, it may be slightly out of adjustment. To
adjust, unscrew the lens and firmly hold the center screw fixed with a
screwdriver, and with thumb and forefinger gripping the pointer near the
center, gently turn the pointer to zero. Repeat carefully if not on zero.
It's unavailable for wet gauge, and the wet gauge does not require
gauge zeroing.
Scope of application
For R134A/ R22/ R12/R502 Refrigerant only
Common fault analysis
Refrigeration
agent leakage
The conversion joint gap
is too large
Tighten the switch
connector
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