Home HME030356N - Electrical and Gas Leak Checks

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
BEFORE THE TEST RUN
Do not perform the test run until the following

 Electrical Safety Checks
the unit’s electrical system is safe and
operating properly. After installation,

installed in accordance with local and
national regulations, and according to the
Installation Manual.
 Gas Leak Checks

is not leaking.
• 
low pressure) valves are fully open.
• Check Grounding Work - Measure
grounding resistance by visual
detection and with a grounding

resistance must be less than 0.10.
Note: This may not be required for some
locations in the US.
DURING THE TEST RUN
1. Check for Electrical Leakage
During the Test Run, use an electro-probe and
multimeter to conduct a comprehensive electrical
leakage test. If electrical leakage is detected, turn off
the unit immediately and call a licensed electrician

Note: This may not be required for some locations
in the US.
WARNING
- RISK OF ELECTRIC SHOCK

NATIONAL ELECTRICAL CODES AND MUST BE
INSTALLED BY A LICENSED ELECTRICIAN.
2. Gas Leak Checks
There are two different methods to check for gas
leaks.
• Soap and Water Method
Use a soft brush to apply soapy water or liquid
detergent to all pipe connection points on the
indoor unit and outdoor unit. The presence of
bubbles indicates a leak.
• Leak Detector Method
If using a leak detector, refer to the device’s
operation manual for proper usage instructions.
• A

do not leak, replace the valve cover on the outside
unit.
A: Low pressure stop valve
B: High pressure stop valve

Check Point of Indoor Unit
Check Point of Outdoor Unit
A
B
C
D