Page 33 mrcool.com
Refrigerant Piping Connection
AFTER PERFORMING GAS LEAK CHECKS
points DO NOT leak, replace the valve cover
on the outside unit.
Electrical and Gas Leak Checks
8
Gas Leak Checks
WARNING – RISK OF ELECTRIC SHOCK
ALL WIRING MUST COMPLY WITH LOCAL
LAND NATIONAL ELECTRICAL CODES,
AND MUST BE INSTALLED BY A LICENSED
ELECTRICIAN.
Electrical Safety Checks
BEFORE TEST RUN
DURING TEST RUN
installed in accordance with local and national
regulations, and according to the Installation Manual.
Check Grounding Work
Measure grounding resistance by visual detection and
with a grounding resistance tester. Grounding resistance
must be less than 4.
Note: This may not be required for some locations in
Check for Electrical Leakage
During the Test Run, use an electroprobe and multimeter
to perform a comprehensive electrical leakage test.
-
the cause of the leakage.
Note: This may not be required for some locations in
leaks.
Soap and Water Method
-
gent to all pipe connection points on the indoor unit
and outdoor unit. The presence of bubbles indicates a
leak.
Leak Detector Method
If using leak detector, refer to the device’s operation
manual for proper usage instructions.
7
System Leak Checks
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