Mitsubishi Electric MSZ-AH09VA-H1 Operating And Installing Instructions page 72

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.
Cable fixing clamps and 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.
·
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.
Wires between indoor and outdoor terminal block shall be
·
marked with number for corresponding connection.
S
1
S
2
S
3
Yellow/Green
Frequency conversion model
MSZ
model
Loose the terminal screws
Terminal
bed
Wire
Warning
Neutral line,live line and earth wire inside power socket at
·
home 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
Yellow/Green
34
Warning
Caution
Warning
Black
S
1
White
S
2
Red
S
3
<Detailed connecting diagram>
Indoor terminal block
Black
Yellow/Green White Red
4-core rubber wire
Black WhiteRed
Yellow/Green
Outdoor terminal block
Brown
Live wire(L)
Blue
Neutral wire(N)
Grounding( )
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.
How to set "Auto Restart Function"
Remove the front panel and then remove the emergency
①
operation button assemblies.
Remove the screw of the electrical cover.
②
Remove the electrical cover.
③
Remove the connector of blade motor from CN151 and
④
pull out the lower limit switch connector from CN1R1.
Remove the vane motor conductor inside the electrical
box.
Pull out the electrical board and disconnect the resistor
JR07 on it.
Operation
The operation setting is still reserved at power-off.
①
3 minutes after recovery of power supply,the air
②
conditioner will restart automatically according to the
memory.
Caution
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 models,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.
First wrap pipes with
felt tape and put them into the pipe keeping section
behind the indoor unit.
Drain piping
Felt tape
,then the drainage hose with
E
Liquid pipe
Gas pipe
A