Mitsubishi Electric R410A Operating And Installation Instructions page 49

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.
·
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.
S1
S2
S3
Yellow/green
MSZ
Unscrew terminal screws
terminal
block
Wire
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
Grounding( )
Neutral wire(N)
Warning
Note
Warning
S1
Black
S2
White
S3
Red
<Wiring Detail>
Indoor terminal block
4-core rubber covered
Black White
Red
Black White
Red
Green/yellow
Outdoor terminal block
Warning
Live line(L)
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
Remove the front panel
①
Remove the screws of electrical cover.
②
Remove the electrical cover
Remove the connector of blade motor from CN 151.
③
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.
④
Operation
The operation setting is still reserved at power-off.
①
3 minutes after recovery of power supply, the air conditioner will restart
②
automatically according to the memory.
Note:
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
·
pipe keeping section behind the indoor unit.
Drain Piping
Felt tape
5
48
Indoor controller
and put them into the
5
Liquid pipe
Gas pipe
Wires for
A
indoor/oudoor unit