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Kelvinator Air Conditioning Electrical and gas leak check 17
Electrical and gas leak check
Electrical safety check
Perform the electric safe check after completing installation:
1. Earth connection - Check the earth connection visually and
with a multi meter following national wiring rules to conrm
good earth connection of both the indoor unit and the
outdoor unit.
2. Earth leakage test - While the unit is running, conduct earth
leakage test with a multi meter. If high leakage current is
detected immediately switch off the unit and solve the
problem before proceeding. Follow earth leakage test
procedure as per national wiring rules.
Gas leak check
1. Soap water method: Apply a soap water or a liquid neutral
detergent on the indoor unit connections and outdoor unit
connections by a soft brush to check for leakage of the
connecting points of the piping. If bubbles come out, it
indicates that the pipes have leakage.
2. Leak detector method: Use a leak detector to check near
connections A, B, C & D for refrigerant leakage.
Indoor unit
check point
Cover
Outdoor unit
check point
B
D C
A
Fig. 22
Operation test
After conrming the electrical safety has passed and conrmed
there are no gas leaks, follow the below steps to complete an
operation test:
Check that all tubing and wiring have been properly connected.
Check that the gas and liquid side service valves are fully open.
1. Connect the power, press the ON/OFF button on the remote
controller to turn the unit on.
2. Use the MODE button to select COOL, HEAT, AUTO and FAN
to check if all the functions work well.
3. When the ambient temperature is too low (lower than 17°C),
the unit cannot be controlled by the remote controller to run in
cooling mode. Force the unit into cooling mode by using the
manual control button on the indoor unit as per
below.
• Hold the panel sides and lift the panel up to an angle until it
remains xed with a clicking sound.
• Pressing the button once will put the unit into AUTO mode,
and the unit will automatically select heating or cooling based
on the ambient room conditions. Pressing the button twice
4. The test operation should last about 30 minutes.
Auto/Cool
Manual control
button
within 5 seconds will put the air conditioner into forced
cooling mode and “FC” will be shown on the display. After
about 30 minutes operation in forced cooling mode, the air
conditioner will switch to AUTO mode and “FC” will be
replaced with AUTO mode set temperature of “24” on the
display. Pressing the button again while the air conditioner
is operating will switch off the air conditioner.
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