EN -5
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5.3.2 Clearing a fault
If the fault is temporary (display flashing), the fault will be cleared automatically when the cause
disappears.
If the fault is permanent (display fixed), the fault must be cleared manually by positioning the dial
to the Off position:
then pressing and holding the OK button for 3 seconds.
IMPORTANT: The heat pump may switch to safety mode (off) to prevent damage to the
system. Inform your installer immediately.
5.4 Frost protection mode (unoccupied mode)
If you are away from home for a short period you do not need to switch off your heating. Switch
the unit to economy mode (
) so that the heat pump need not be overworked on your return (it
is hard to raise the temperature) (see chapter 3)
If you are away from home for several days, switch the unit to frost protection mode by selecting the
corresponding position
(ensuring that P6 is at 0 so that the auxiliary units are not authorised).
In this case, the air temperature can be regulated from 5 to 15°C according to the setpoint
displayed. It is however important not to drop the temperature too low to make it easier to raise
the temperature again.
IMPORTANT: The heat pump should not be switched off (off mode or circuit breaker) while
you are away if the installation does not contain glycol (anti-freeze). If you do so, the installation
may freeze and the heat pump could be damaged.
6. MAINTENANCE
To ensure that your unit enjoys trouble-free operation for many years, you can carry out the
following operations yourself. These must be carried out before each heating season alongside
the professional maintenance (maintenance of the unit's refrigerant fluid and electrics).
6.1 Checking the volume of water
• When cold, check the pressure gauge displays a pressure of approximately 1.5 bar. If it is
necessary to fill and repressurise the unit, check which type of fluid was originally used. If in
doubt, contact your installer.
6.2 Cleaning the filters
• Your installation is fitted with hydraulic filter(s) on the water return. This cleaning operation must
be carried out at least once a year.
6.3 Unseizing the valves
Your installation is fitted with valves, which must be unseized at least once a year. To do this,
open and close them once or twice then return them to their original position.
6.4 At the end of the heating season
Do not use the circuit breaker to switch off the heat pump
as it is programmed to release its
own accelerator pump
automatically. Set the dial to off mode.
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