21
—
DHW
: the unit (and its circulator) will not be active, the 3-way valve will be
blocked on the DHW side, and the additional heat source will be activated.
—
H DHW
: the unit (and its circulator) will not be active, the 3-way valve
will be blocked on the system side, and the additional heat source will be acti-
vated; once the set value has been reached, the additional heat source will be
deactivated and the unit will activate its circulator; the DHW side will be man-
aged using only the electric heaters of the compatible Aermec accessory tank.
Logic 2 (not available for BHP units)
With this logic, the 2-way valve is managed on the basis of the control panel set-
tings; the operating modes will therefore be managed when the temperature
measured by the outside air probe is lower than the "Additional heat source temp."
parameter:
—
Heating
: the unit (and its circulator) will not be active, the 3-way valve will be
blocked on the system side, and the additional heat source will be activated;
once the set value has been reached, the additional heat source will be deacti-
vated and the unit will activate its circulator.
—
DHW
: the unit (and its circulator) will not be active, the 3-way valve will be
blocked on the DHW side, and the additional heat source will be activated.
—
H DHW
:
1.
If the priority is "Heating" (paragraph "4.5 Set the priority between heating and
domestic hot water production (Heat+hot water) p. 10"), the unit (and its
circulator) will not be active, the 3-way valve will be blocked on the system
side, and the additional heat source will be activated; once the set value has
been reached, the additional heat source will be deactivated and the unit will
activate its circulator; the DHW side will be managed using only the electric
heaters of the compatible Aermec accessory tank;
2.
If the priority is "DHW" (paragraph "4.5 Set the priority between heating and
domestic hot water production (Heat+hot water) p. 10"), the unit (and its
circulator) will not be active, the 3-way valve will be blocked on the DHW side,
and the additional heat source will be activated; once the set value has been
reached on the DHW side, the 3-way valve will be moved to the system side
and the additional heat source will work for heating;
Logic 3
This logic disables the heat pump and activates a 230V signal to the “Other thermal”
terminals (refer to the installation manual for more information); this signal acti-
vates the additional heat source when the temperature measured by the outside air
probe is lower than the "Additional heat source temp." parameter (which will work
in stand alone mode compared with the unit).
Lastly, press the top right button to save the data entered.
NOTE:
1.
When this function is activated, it permits the activation of the replacement
heat source (via a 230V ~ 50Hz signal to the "Other thermal" terminals) if the
outside temperature falls below the value specified in the “Additional heat
source temp.“ parameter or if “Emergency mode” is activated;
2.
If you select “Logic 1” or “Logic 2“, the additional heat source must be set so as
to produce hot water with a set-point equal to that selected for the heat pump.
This setting must be made manually by the user, as the heat pump gives con-
sent only (without the possibility to alter the hot water production set-point on
the additional heat source);
3.
If you select “Logic 2”, the system must be designed to supply the system ter-
minal side and the DHW side with water at the same temperature (so the sys-
tem-side terminals must necessarily be fitted with mixer valves to ensure the
hot inlet water is correctly managed);
4.
The supplementary water probe must be installed downstream of the 3-way
valve (for more information, refer to the installation manual);
5.
The maximum value for the heating set-point is 60°C, whereas the set-point in
DHW mode must be between “DHW tank T“ (paragraph "5.2 Setting the tem-
perature set-points used by the unit in the various modes (WOT-Cool~ ΔT-hot
water) p. 16") + 5°C and 60°C;
6.
If this function is used, no additional electric heaters can be enabled (optional
elec. heater);
7.
If the relative function is activated (paragraph "8.3 Activating/deactivating
the memory (On/off memory) p. 25"), the value of these parameters will
be stored in the memory and automatically reset after any possible voltage
failure;
8.
In the case of BHP, only Logic 1 and Logic 3 can be used. The additional water
probe supplied must be replaced and positioned as shown in the Installation
Manual.
7.9 SETTING AN ADDITIONAL HEATER (OPTIONAL
E-HEATER)
Optional E Heater
Optional E Heater: 1
T Heater: -15°C
Logic 1
For the HMI range:
Once you have entered the “Optional elec. heater” function, you can activate or
deactivate any additional electric heater. This heater may be single-stage or du-
al-stage (in the case of a dual-stage model, you can decide whether or not to use
both stages by specifying the number of heaters in the first parameter). You can
also set the outdoor temperature threshold below which it will be activated in place
of the heat pump;
WARNING:
it is compulsory to select “Logic 1”.
Lastly, press the top right button to save the data entered.
NOTE:
1.
When this function is activated, it permits the activation of the supplementary
heaters (via a 230V ~ 50Hz signal to the "KM1" and "KM2" terminals; in the case
of a single heater, use the "KM1" terminals only) if the outside temperature falls
below the value specified in the “Elec. heater T." parameter or if “Emergency
mode” is activated;
2.
The supplementary water probe must be installed downstream of the electric
heater (for more information, refer to the installation manual);
3.
If this function is used, no additional heat source can be enabled (Additional
heat source);
4.
The electric heater must be installed downstream of the 3-way valve (terminal
side of the system);
5.
The DHW request will be met by the electric heater in the compatible Aermec
accessory tank, whereas the system request will be met by the electric heaters;
6.
The electric heaters for the system, and the electric heater in the DHW tank
available as an Aermec accessory, will never be activated simultaneously;
7.
If the relative function is activated (paragraph "8.3 Activating/deactivating
the memory (On/off memory) p. 25"), the value of these parameters will
be stored in the memory and automatically reset after any possible voltage
failure.
For the BHP range:
Once you have entered the “Optional elec. heater” function, you can activate or
deactivate the electric heaters installed on the indoor unit, as per the following
configurations:
— BHP060W and BHP060F = 1.5kW + 1.5kW;
— BHP100W and BHP100F = 3.0kW + 3.0kW;
The “Elec. heater T.“ parameter is used to set the outside temperature threshold be-
low which the heaters should be activated in place of the heat pump.
WARNING:
it is compulsory to select “Logic 1”.
Lastly, press the top right button to save the data entered.
NOTE:
1.
Once this function has been activated, it will give consent for the enabling of
the electric heaters if the outside temperature falls below the value specified in
the “Elec. heater T.“ parameter or if “Emergency mode” is activated;
2.
If this function is used, no additional heat source can be enabled (Additional
heat source);
3.
The DHW request will be met by the electric heater in the compatible Aermec
accessory tank, whereas the system request will be met by the electric heaters;
4.
The electric heaters for the system, and the electric heater in the DHW tank
available as an Aermec accessory, will never be activated simultaneously;
5.
If the relative function is activated (paragraph "8.3 Activating/deactivating
the memory (On/off memory) p. 25"), the value of these parameters will
be stored in the memory and automatically reset after any possible voltage
failure.
