
9
Operating modes
Theoperating mode can be changed through the spa user interface.
Six different operating modes are available:
1) EcoHeat(EcoH)
2) Smart Heat (HEAT)
3) Cool (COOL)
4) EcoAuto(AUTO)
5) Smart Auto (SMRT)
6) Electric(ELEC)
Eco Heat (EcoH)
In this mode, the Heat pump is used asthe unique source
of heating. Theheating element is kept off and the Heat
pump is not usedtocool the watershould its temperature
rise above the current set point.
Smart Heat (HEAT)
This mode uses the Heat pump as the main heating
source. Theheatingelement is turned on only if thereis
alarge temperaturedifference between the water and the
set point orifthe ambient temperature gets too low. The
Heat pump is not used to cool the water inthis mode.
Cool (COOL)
This mode uses the Heat pump in cooling mode only.
TheHeat pump is not used as a heatingsource and the
heating element is never activated.
Eco Auto (AUTO)
This mode borrows functionality from both Eco Heat
andCool modes and has the ability to select the proper
Heat or Cool mode automatically according to the water
temperature. The heating element is neveractivated in
this mode.
Smart Auto (SMRT)
This mode borrows functionality from both Smart Heat
andCool modes and has the ability to select the proper
Heat or Cool mode automatically according to the water
temperature. The heating element is activated only if there
is a large temperature difference between the water and
the set point or if the ambient temperature gets too low.
Electric(ELEC)
This mode keeps the heat pump off and uses only the
heating element to regulate water temperature.
FreezeProtection
In cold weather,ifit becomes impossible for the Heat pump to keep the water temperature above freezing point, the
help of theheatingelement might be required even if its use should be prohibited by the operating mode or conditions.
At any time, if the water temperature drops too close to the freezing point, the operating mode will be switched
temporarily to“Smart Heat” andthe system will heatuntil the minimum allowed set point hasbeen reached before
reverting to its previous operating mode and resume normal operation.
Three minutes waiting time
In any circumstances, when the Heat pump is shutdown, pleasebe aware that there is forced waiting time of three
minutes before the Heat pump can operate again. This is so to prevent damage to the equipment. For example, if the
operating mode has been changed from Cold to Hotsucceeding an increase of the setpoint, the Heat pump will be
allowed to start only after a delay of three minutes.