Lennox Relax series, Руководство по установке

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13 Test running
ELECTRICAL SAFETY AND GAS LEAK CHECK
•
Electrical safety check.
Perform the electric safe check after completing installation:
1. Insulated
resistance.
The insulated resistance must be more than 2M
Ω
.
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
Ω
.
3. Electrical leakage check (performing during test running)
During test operation after finishing installation, the serviceman can use the electroprobe
and multimeter 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
1. 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 the piping. If
bubbles come out, the pipes have leakage.
2. 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.
TEST RUNNING
Perform test running after completing gas leak and electrical safety check.
The test running time should last more than 30 minutes.
1. Open the panel and lift the panel up to an angle which remains fixed. Do not lift the panel
any further when it stops with a click sound.
2. Press the manual control button twice until the operating indicator lights up, the unit will
operate on Forced Cool mode.
3. Check if all the functions work well during test running. Especially check whether the
drainage of indoor unit is smooth or not.
4. Press the manual switch button again after finishing the
test running. The operating indicator turns dark and the unit
stops operating.