Manual Operation And Maintenance; Operation Mode Selection; Optimal Operation - HTW MULTISPLIT IX21D3 Manuel De L'utilisateur

2. Manual Operations And Maintenance

Operation mode selection

While two or
simultaneously operating, make sure the modes
do not conflict with each other. The heat mode
claims precedence over all other modes. If the
unit intially started to operate in HEAT mode,
the other units can operate in HEAT mode
only. For example: If the unit intially started
operates under COOL (or FAN) mode, the other
units can operate under any mode except HEAT.
If one of the unit selects HEAT mode, the other
operating units will stop operation and diplay
"--" (for units with display window only) or the
auto and operation indication light will flash
rapidly, the defrost indication light will turn off, and
the timer indication light will remain on (for units
without a display window). Alternatively, the
defrost and alarm indication light (if applicable)
wil light up, or the operation indication light will
flash rapidly, and the timer indication light will turn
off ( for the floor and standing type).
Maintenance
If you plan to leave the unit idle for a long time,
perform the following tasks:
1. Clean the indoor unit and air lter.
2. Select FAN ONLY mode and let the indoor fan
run for a time to dry the inside of the unit.
3. Disconnect the power supply and remove the
battery from the remote control.
4. Check components of the outdoor unit
periodically. Contact a local dealer or a
customer service centre if the unit requires
servicing.
NOTE: Before you clean the air conditioner, be
sure to switch o the unit and disconnect the
power supply plug.
more indoor units

Optimal operation

are
To achieve optimal performance, please note the
following:
• Adjust the direction of the air flow so that it is
notblowing directly on people.
• Adjust the temperature to achieve the highest
possible level of comfort. Do not adjust the unit
to excessive temperature levels.
• Close doors and windows in COOL mode or
HEAT mode.
• Use the TIMER ON button on the remote
controller to select a time you want to start your
air conditioner.
• Do not place any object near the air inlet or air
outlet, as the efficiency of the air conditioner
may be reduced and the air conditioner may
stop running.
• Clean the air filter periodically, otherwise
cooling or heating performance may be
reduced.
• Do not operate unit with horizontal louvre in
closed position.
Suggestion:
For units that feature an electric heater,
when the outside ambient temperature is
below 0°C (32°F), it is strongly recommended
that you to keep the machine plugged in so
as to guarantee smooth operation.
When the air conditioner is to be used
again:
• Use a dry cloth to wipe o the dust
accumulated on the rear air intake grille in
order to avoid the dust being dispersed from
the indoor unit.
• Check that the wiring is not broken o or
disconnected.
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