Electrical safety
Perform the electric safe
ty
check after completing installation:
Gas leak check
Soap water method
Apply a soap water or a liquid neutral
detergent on the indoor unit
connection or outdoor unit connections
by a soft brush to check for leakage of
the connecting points of th
e
piping. If
bubbles come out, the pipes have
Leak detector
Use the leak detector to check for
leakage.
Caution
A: Lo packed valve, B: Hi packed valve
C and D are ends of indoor unit
connection.
Outdoor unit
check point
Cover
indoor unit
check point
1. Insulated resistance: The insulated resistance must be more than 2M .
2. Grounding work: After finishing grounding work, measure the grounding
resistance by visual detection and grounding resistance tester. Make sure the
grounding resistance is less than 4 .
3. Electrical leakage check (performing during test running): During test operation
after finishing installation, the serviceman can use the electr
ic
probe and
multimeter to perform the electrical leakage check. Turn off the unit
immediately if
electrical
leakage happens. Check and find out the solution
ways till the
unit operate
s
properly.
Electrical safety and gas leak check
leakage point.
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