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ECO mode
This mode uses the heat pump only to produce hot water.
Under certain conditions, this mode may
result in shortages of hot water
(mainly due to air temperatures outside the operating range).
BOOST mode
BOOST mode can be used to force the heat pump and the electric backup to work at the same time in the
event of high demand.
The regulation automatically returns to the previous mode at the end of the cycle.
ABSENCE mode
This mode helps to protect the tank when the user is absent. The tank is protected against corrosion and
the regulation heats the water to above 7°C. Use the arrows to select the number of days during which you
will be absent. The length of the absence can be set to between 1 and 99 days. If a number of days is not
selected, the water heater remains in ABSENCE mode permanently.
On the last day of the period of absence, the water heater performs a cycle to avoid Legionella. The
regulation automatically returns to the previous mode at the end of the ABSENCE mode.
INFO mode
In this mode, it is possible to view the temperatures measured by the various sensors, the maximum and
minimum values measured and the time for which the heat pump or the electric backup has been working.
Values can be reset by pressing
+
at the same time.
Automatic defrost
The water heater is fitted with a defrost function. In negative temperatures, the water heater is
automatically defrosted by opening a solenoid, which sends the hot gas from the compressor directly to the
evaporator, where the frost melts. In positive temperatures, only the fan is used to defrost the heat
exchanger.
The defrost mode is activated by the temperature sensor in the evaporator. This temperature sensor can
detect the formation of frost, irrespective of the air temperature or the configuration of the system.
The defrost cycle lasts a maximum of 15 minutes.
Fan controls
When FAN is set to 0
(FAN 0)
, the water heater draws the air in from the room. The fan permanently works
at low speed in order to reduce the noise level, while producing a sufficient volume of hot water. Do not
use ducts and the
FAN 0
setting at the same time.
The
FAN 1
setting is used when a single duct is installed, usually on the air outlet. This configuration
evacuates the cold and dry air from the room.
The FAN 2 setting is used when exterior ducts are installed on the air inlet and outlet.
In the positions
FAN 1
or
FAN2
, the fan operates at high speed to compensate for the head loss caused by
the ducts.
In the positions
FAN 0
or
FAN 1
, the lower limit for operation with the heat pump is an air temperature of
3°C, in order to prevent the water heater from freezing (-5°C in
FAN 2
).
