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WARNING: DISCONNECT THE CHARGING
CYLINDER HEATER AT THIS TIME TO
PREVENT THE CYLINDER PRESSURE FROM
EXCEEDING ITS MAXIMUM LIMITS.
7. Allow system to sit for five minutes.
8. Turn on refrigerator compressor. Run compressor
for few minutes and monitor system pressures.
9. When satisfied that unit is operating correctly,
clamp high-side process tube with pinchoff tool while
unit is still running.
10. Slowly open high-side manifold gauge valve to allow
compressor to remove any refrigerant trapped in
high-side hose and process fitting.
11. Close both manifold gauge valves. If high-side gauge
reading rises, pinch-off must be corrected before
proceeding.
12. Remove high-side process tube adaptor and solder
process tube closed.
13. Clamp low-side process tube with pinchoff tool while
unit is running. Remove low-side process tube
adaptor and solder process tube closed.
14. Check process tubes for refrigerant leaks.
FINAL LEAK TEST
1. With refrigerator turned OFF, leak test all low-side
system components.
2. Turn unit ON and run until condenser is warm. Leak
test high-side system components.
Figure
E2
46
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