4.2.2
Operation of various MODES
The main and default heat source for the thermodynamic water heater is
the heat pump.
If the room temperature is outside the heat pump's operating range, it will
cease the function. The water heater automatically activates the
immersion heater and the code bA is shown on the control panel display.
The room temperature range adapted for this operating mode is between
-15°C and +43°C.
For the 3 operating modes:
the thermodynamic water heater can heat the domestic hot water to a
maximum temperature of 65°C,
the domestic hot water temperature set point can be set to between 25
and 75°C.
For more information, see
Limit temperatures of the thermodynamic water heater, page 26
Operation in AUTO MODE = AUTOMATIC MODE
The thermodynamic water heater can heat the water using the following
sources of energy:
the heat pump,
the immersion heater
or both systems simultaneously.
Tab.10
T = Ambient temperature
Source(s) of energy used
At least one of the following 3 con
ditions must be true:
T < –15 °C
Water temperature > variable
temperature set point according
to the outdoor temperature
T > +43 °C
Immersion heater
–15 °C < T < Td
Heat pump and immersion heater
operate simultaneously if necessa
ry
The following 2 conditions must be
true:
T > Td
Water temperature < 65°C
Heat pump
Operation in HYBRID MODE = HYBRID MODE
Important
HYBRID MODE = HYBRID MODE: heat pump with compulsory
coupling to an instant boiler.
The thermodynamic water heater can heat the water using 2 sources of
energy: heat pump and instant boiler:
the heat pump is intended to preheat the domestic hot water,
the instant boiler is used to heat the domestic hot water to the required
temperature for use.
No electrical back-up for this mode.
4 Description of the product
7740321 - v04 - 03122019
SPC Split
25
