SYSPLIT WALL EDGE R32 INSTALLATION MANUAL
 Page 31 
Electrical and Gas Leak Checks
8
Electrical Safety Checks
After installation, confirm that all electrical wiring 
is installed in accordance with local and national 
regulations, and according to the Installation 
Manual.
BEFORE TEST RUN
Check Grounding Work
Measure grounding resistance by visual detection 
and with grounding resistance tester. Grounding 
resistance must be less than 4Ω.
Note: This may not be required for some 
locations in the US.
DURING TEST RUN
Check for Electrical Leakage
During the Test Run, use an electroprobe and 
multimeter to perform a comprehensive electrical 
leakage test. 
If electrical leakage is detected, turn off the unit 
immediately and call a licensed electrician to find 
and resolve the cause of the leakage.
Note: This may not be required for some 
locations in the US.
Gas Leak Checks
There are two different methods to check for gas 
leaks.
Soap and Water Method
Using a soft brush, 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 leak detector, refer to the device’s 
operation manual for proper usage instructions.
AFTER PERFORMING GAS LEAK CHECKS
After confirming that the all pipe connection 
points DO NOT leak, replace the valve cover on 
the outside unit.
Electrical and Gas 
Leak Checks
 WARNING – RISK OF 
 ELECTRIC SHOCK
ALL WIRING MUST COMPLY WITH LOCAL
AND NATIONAL ELECTRICAL CODES,
AND MUST BE INSTALLED BY A LICENSED
ELECTRICIAN.










