Mitsubishi MSZ-YK09VA-H1, Operating Instructions Manual

Page: 49 / 54

Installation instructions
Cables between indoor and outdoor unit shall be connected in good
order using specified cables and connecting terminals be fixed well
without being affected by external force. Fire may result from poor
connection or fixture.
Electrical cover shall be fixed well, otherwise, fire or electric shock may
result from entry of dust and moisture.
Be sure not to make wrong connection.
Electric shock may result from wrong grounding.
Wires between indoor and outdoor terminal block shall be marked with number
for corresponding connection.
Tighten terminal screws to avoid looseness.
After tightening of the screws, pull the wires slightly to verify whether
they are tightened.
If the wires are not connected to the terminal block, the air conditioner
can't operate correctly.
Neutral line, live line and earth wire inside power socket shall be connected as
shown in figure reliably without wrong connection and internal short circuit.
Fire may result from wrong connection.
Power supply check Diagram for power socket in user’s home
2-5 Auto restart function
When the air conditioner is controlled by the remote controller, indoor
unit electrical board will memorize operation mode, set temperature and
fan speed. If there is a power-off during operation, Auto restart function
is enabled to restart the air conditioner after recovery of power supply. If
the air conditioner operates in the mode of “I FEEL CONTROL” before
power-off, the mode will be memorized. In “I FEEL CONTROL” mode, air
conditioner operation depends on indoor temperature at restarting.
How to set Auto Restart Function
Operation
The operation setting is still reserved at power-off.
3 minutes after recovery of power supply, the air conditioner will restart
automatically according to the memory.
10 seconds after operating the remote controller, the operation setting
will be reserved.
When the Auto ON/OFF timer is activated, the timer setting will be
cancelled in the event of power-off or power failure. As Auto Restart
function is equipped inside the types, once the power is recovered, the
air conditioner will start to operate three minutes later.
If the air conditioner is turned off by the remote controller before power-
off, Auto Restart function will be disabled due to power button’s OFF
status in the remote controller.
In order to prevent impulse current from affecting the power supply,
please arrange a sequence to start other household appliances to
avoid simultaneous power-on.
2-6 Piping work
Be sure to place drainage hose under refrigerant pipe.
Don’t upheave or bend the drainage hose.
Don’t bind up the hose by pulling it.
Be sure to bind up the drainage hose with commercially available insulated
material when the hose goes through room.
Wrap pipes and drainage hose with felt tape
5
and put them into the
pipe keeping section behind the indoor unit.
MSZ
Groduing( )
Neutral line(N) Live wire(L)
Liquid pipe
Gas pipe
Felt tape
5
Wires for
indoor/oudoor unit
A
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Remove the front panel
Remove the screws of electrical cover.
Remove the electrical cover
Remove the connector of blade motor from CN151.
Remove the wires of blade motor inside the electrical terminal block.
Remove the temperature sensor from CN111, CN112.
Remove the MOVE EYE sensor from CN110.
Pull out the electrical board and disconnect the resistance JR07 on it.
①
②
③
④
①
②
Note:
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48
Warning
Note
Warning
Outdoor terminal block
Indoor terminal block
S1 S1
S2 S2
S3 S3
Black
White
Red
Yellow/green
Warning
Drain Piping
Outdoor terminal block
Indoor terminal block
4-core rubber covered
Green/yellow
White Black Red
Red
Black White
<Wiring Detail>
Unscrew terminal screws
terminal block
Wire
MSZ-YK09/12VA-H1 MSZ-YK18VA-H1