8
40 DMC
English
Controls
The unit can be used with an infra-red remote control, or with the
cabled “Room Controller” or “Zone Manager” remote controls.
See the remote control’s own manual for information on how to
operate the infra-red or cable remote control.
Remote controls must be installed by qualified personnel.
“IR remote control” (see fig. 12).
“Room Controller” (see fig. 13).
“Zone Manager” (see fig. 14).
Maintenance, Trouble - shooting
and disposal
Warning!
• The appliance must be maintained and cleaned internally
only by qualified personnel.
• Always disconnect the appliance from the mains supply
before starting any maintenance work and before accessing
any internal components.
Perform the various cleaning and maintenance operations at the
intervals specified in the following table.
Table II: Scheduled maintenance
Indoor unit
Every month
Every 4 months
Every year
Clean the air filter (1)
“
”
Clean the condensate drain pipe (1)
“
”
Change the batteries in the infra-red remote control (if present)
“
”
Perform the above maintenance operations at least at the intervals specified to keep the appliance functioning efficiently.
Maintenance intervals should obviously be adapted to the conditions of each installation, e.g. the amount of dust in the atmosphere etc..
(1) These operations must be performed only by qualified personnel. See the relevant “Installation Manual”.
Trouble-shooting
(any subsequent maintenance must be
performed only by qualified personnel)
The air conditioner fails to start:
• The main switch is turned off. Turn the switch ON.
• The fuses in the main switch have burned out. Change the fuses.
• Wait three minutes. The compressor start-up delay has not
finished.
• The temperature setting is higher than the actual room temperatu-
re in cooling mode, or lower than it in heating mode (so the
thermostat does not request functioning).
• Check that the condensate pump (if fitted) is not in alarm state
and that the level of water in the condensate bowl is not too high.
Very poor air conditioning efficiency:
• The air flow to or from the indoor or outdoor unit is obstructed.
• The air filter is dirty and is restricting the air flow. The filter must
be cleaned only by qualified personnel.
• A door or window is open.
• Fan speed is on a low setting.
• The temperature setting is not suitable.
Mist comes out of the unit:
• This can occur when the appliance is functioning in cooling mode.
It is caused by cold air from the air conditioner coming into
contact with warm, humid air in the room.
The air conditioner whistles briefly when it is switched on or off:
• This is caused by the coolant starting to circulate and pressure
equalising inside the coolant circuit. It is normal and stops quickly.
The unit emits an unpleasant smell:
• Unpleasant smells can build up in the indoor unit’s air filter and be
blown into the room when the appliance is functioning.
Switch the appliance off and call an authorised service centre to
have the filters changed.
Re-start the appliance in ventilation mode and open the windows
to change the air.
Disposal
The coolant in the appliance must be recovered and disposed of by
qualified personnel before the appliance itself can be disposed of.
At the end of the appliance’s useful life, have the appliance and all
its components processed and disposed of by a proper disposal
service.
