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[When the electric wiring work is not finished]
•
The electric wiring works (including earthing) must be carried out by a qualified electrician.
•
If a qualified person is not present, after the electric wiring work is finished, check the drainage according
to the method specified in
[When the electric wiring work is finished]
.
1.
Open the control box cover and connect the single phase power supply to the terminal (1, 2) on the
terminal block (X2M) for indoor-outdoor transmission wiring and the earth wiring to the earth terminal.
(Refer to Fig. 35)
2.
Make sure the control box cover is closed before turning on the power supply.
3.
Gradually pour 1 liter of water from the air outlet
into the drain pan
(Fig. 34)
giving caution to avoid
splashing water on the electric components such as drain pump.
If the air outlet
is closed, pour water from the air outlet
.
4.
When the power supply is turned on, the drain pump will operate. Check drainage.
(The drain pump will automatically stop after 10 minutes.)
5.
Turn off the power supply after checking drainage, and remove the power supply wiring.
6.
Attach the control box cover as before.
8. ELECTRIC WIRING WORK
8-1 GENERAL INSTRUCTIONS
•
Make certain that all electric wiring work is carried out by qualified personnel according to the applicable
legislation and this installation manual, using a separate dedicated circuit.
Insufficient capacity of the power supply circuit or improper electrical construction may lead to electric
shocks or a fire.
•
Make sure to install an earth leakage breaker.
Failure to do so may cause electrical shocks and a fire.
•
Do not turn on the power supply (branch switch, branch overcurrent breaker) until all the works are finished.
•
Multiple number of indoor units are connected to one outdoor unit. Name each indoor unit as A-unit, B-unit
….. and the like. When these indoor units are wired to the outdoor unit and the BS unit, always wiring the
indoor unit to the terminal indicated with the same symbol on the terminal block. If the wiring and the piping
are connected to the different indoor units and operated, it will result in malfunction.
•
Make sure to earth the air conditioner. Earthing resistance should be according to applicable legislation.
•
Do not connect the earth wiring to gas or water piping, lightning conductor or telephone earth wiring.
•
Gas piping ....... Ignition or explosion may occur if the gas leaks.
•
Water piping .... Hard vinyl tubes are not effective earths.
•
Lightning conductor or telephone earth wiring ......Electric potential may rise abnormally if struck by a
lightning bolt.
•
For electric wiring work, refer to also the “WIRING DIAGRAM” attached to the control box cover.
Fig. 35
Earth terminal
Power supply
220 - 240V
~
50Hz
Terminal block (X2M) for
indoor-outdoor transmission
wiring
Terminal block (X2M) for
indoor-outdoor transmission
wiring
1
2
3
3
3
2
4PEN469441-1.book Page 21 Tuesday, March 21, 2017 1:49 PM
