When The Air Conditioner Is Not Used For A Long Time; Maintenance - Mitsubishi Electric MSZ-WG18VA-H1 Operating And Installing Instructions

Wall-mounted inverter heat pump room air conditioner
Table of Contents
Timer operation (ON-Timer and OFF-Timer)
You can preset the air conditioner to ON-Timer and OFF -Timer at the time of sleeping, going home or getting up.
How to set ON-Timer
Press
button.
1
Press ON-Timer button "
Set time for the timer by pressing Time button
2
(increase) and
Each press of button
10 minutes intervals and each press of button
decreases the set time in 10 minutes intervals.
QUIT ON-Timer
Press
button.
Combination of ON-Timer
and OFF-Timer
Combine ON-Timer with OFF -Timer. The unit will operate first
at the earlier set time.
(The mark "↑↓" shows operation order of timer.)
·If the current time is not set, timer operation will be disabled.
Note:
If main power supply is switched off or power failure occurs
during timer operation, timer setting will be canceled.

When the air conditioner is not used for a long time

Not used for a long time
Enable the fan to run for 3~4 hours so as to dry the
1
inside of the air conditioner.
·Before fan operation, set to Cooling operation mode
and select highest set temperature.
Switch off the power supply .
2
Warning
Be sure to switch off the power supply when the air
conditioner is not used for a long time.
Fire may result from possible dust deposit.
3
Take out the batteries in the remote controller.
Note:
When the remote controller is not used for a long time,
be sure to take out all batteries in the remote controller to
avoid fluid leakage.

Maintenance

Before cleaning
Switch off the power supply .
Warning
When cleaning the unit, you have to stop unit operation by
switching off the power supply. Because fan blades in high-
speed rotation may hurt you.
", the figure flashes.
(decrease).
increases the set time in
13
How to set OFF-Timer
1
Press
button.
2
Press OFF-Timer button "
Set time for the timer by pressing Time button
(increase) and
(decrease).
Each press of button
10 minutes intervals and each press of button
decreases the set time in 10 minutes intervals.
Quit OFF-Timer
Press
button.
To be used again
Clean the filter and return it to the unit.
1
(Refer to page 15)
Be sure to confirm whether the air inlets and air
2
outlets of indoor and outdoor units are covered.
Confirm whether the earth wire is connected firmly.
3
Warning
Must be grounded.
The earthing wire should not be connected to gas pipe,
tap water pipe, lightning conductor and telephone line. If
you don't connect the earthing wire as required, electric
shock may result.
Cleaning for indoor unit
Clean with soft dry cloth.
If there is distinct smear, use a piece of cloth soaked with neutral
·
detergent to clean the unit, and wipe off the water with soft dry cloth.
Never use gasoline, volatile oil, friction powder or disinfectant.
·
Otherwise, they may damage the unit.
Never use market-sold detergent that is marked with "No use for
·
cleaning of metal products" to clean the panel of indoor unit.
", the figure flashes.
increases the set time in
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