Electrical safety
Perform the electric safe check after completing installation:
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 electroprobe
and mu[timeter to perform the electrical leakage check. Turn off the unit
immediately if leakage happens. Check and find out the solution ways till the
unit operate properly.
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 piping. If bubbles come out, the
pipes have leakage.
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.
indoor unit
check point _.._
Cover__
Outdoor unit B
check point ........... -_J._
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