21
%
'
&
$
Gas Leakage Check
Test and Running
Electrical Safety Check
1 Soap water method:
Apply soap water or liquid neutral detergent on
all valves and pipe connections (A, B, C and D,
UHIHUWRWKH¿JXUHEHORZLQYROYHGLQLQVWDOODWLRQ
by a soft brush to check for leakage.
If bubbles come out, the pipes have leakage.
2 Leak
detector
Use the leak detector to check for leakage.
Perform the electric safe check after completing the
installation:
1 Earthing
work
$IWHU¿QLVKLQJHDUWKLQJZRUNPHDVXUHWKH
earthing resistance by visual detection and
earthing resistance tester.
2 Electrical leakage check
(performing during test running)
'XULQJWHVWRSHUDWLRQDIWHU¿QLVKLQJLQVWDOODWLRQ
the service person can use the electric probe
and multimeter to perform the electrical leakage
check. Turn off the unit immediately if refrigerant
OHDNDJHKDSSHQV&KHFNDQG¿QGRXWWKH
solution ways till the unit operate properly.
Operation Test
1
Before Operation Test
Do not switch on power before installation is
¿QLVKHGFRPSOHWHO\
Electric wiring must be connected correctly
and securely.
Stop valves of the connection pipes should
be fully opened.
All the impurities such as scraps and waste
must be cleared from the unit.
2
Operation Test Method
6ZLWFKRQSRZHUDQGSUHVV³212))´EXWWRQ
on the remote controller to start the operation.
Press MODE button to select the COOL,
HEAT (if applicable), FAN to check if all the
functions work well.
When the ambient temperature is lower than
&WKHXQLWFDQQRWEHVHWRQWKHUHPRWH
control to work in COOL mode. Please use
the Emergency Operation mode which is
used only when the remote is unavailable or
in case of maintenance.
Manual control button
Indoor unit
check points
Liquid pipe
Gas pipe
Outdoor
Unit
Outdoor unit
check points
2-way
valve
3-way
valve
Manual control
button
