Photovoltaic System Settings; Auxiliary Heater Settings; General Settings For An Auxiliary Heater - Bosch HPC 400 Installation Instructions For Contractors

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6.1.5 Photovoltaic system settings
This menu allows you to set whether the energy supplied by the
photovoltaic (PV) system should be used for DHW heating or heating.
The energy supplied by the PV system is used to increase the required
room temperature in optimised operation and in the heating system
automatic mode by the value that has been set here. The room
temperature is always limited to a maximum of 30 DC.
Service menu
The DHW is heated to the temperature set for the DHW operating mode.
It doesn't matter which operating mode is active for DHW heating.
The DHW temperature is not raised if the holiday program is active.
If a buffer cylinder is installed and all heating circuits have mixing
devices, the buffer cylinder will be heated to the maximum temperature
of the heat pump when photovoltaic system is activated.
Menu item Adjustment range description
I
Heating
.f>.ea ~
_
--!.
DHWpeak
No
0 ... 5 K
Yes
Table 19 Photo voltaic system settings
6.2
Auxiliary heater settings
Settings for an auxiliary heater can be made in this menu. Auxiliary
heating is required if the heat pump is not able to supply enough heat,
e.g. in winter. or if requirements for DHW cannot be met quickly enough.
6.2.1 General settings for an auxiliary heater
Settings for an auxiliary heater that are available for all types of auxiliary
heater can be made in this menu. For example. you can set how auxiliary
heating is to be performed and when the auxiliary heater should be used.
Allows the temperature
In
the system to be raised by the set value.
Raising the temperature in the DHW cylinder is enabled.
Raising the temperature in the DHW cylinder is not enabled.
Add. electric heater in
series
1 )
J
A n electric adittional heater is connected in series with the heat pump.
Single energy
source~
~
I
Add. heater with mixer only An auxiliary heater (gas. oil. electric) is connected in parallel with the heat pump. The flow of heat from the
Dual mode alternative
2
) ---;
auxiliary heater is conveyed to the heating system via a mixing valve. The heat pump and auxiliary heater
work exclusively. I.e. either the heat pump or the auxiliary heater is running. but not both.
I Add. heater with mixer in
I
An auxiliary heater (gas. oil. electric) is connected in parallel with the heat pump. The flow of heat from the I
parallel
1
)
auxiliary heater is conveyed to the heating system via a mixing valve. The heat pump and auxiliary heater
"'- D -u-:' al-m -od " - e - p -a- r a-:- lIe ""'
1
2
n-)
- - - 1
can work in parallel. I.e. the auxiliary heater provides an additional flow of heat when the required
r-:-~-:-:----c-:-­
Additional heater on delay
, Mode after EVU block
Hybrid
0 ... 900K · min
Comfort
temperature is unable to be supplied by the heat pump alone.
- - -
-
The heat pump is part of a hybrid system.
The auxiliary heater switches on after a delay. During this time. the heat pump only heats with the
compressor.
When all the conditions for operating the auxiliary heater have been met. the auxiliary heater can start
operation immediately following an energy supplier block.
I
ECO Even once all the conditions for operating the auxiliary heater have been met. the auxiliary heater can only
start operation following an energy supplier block after a delay period has passed.
I
~~~~--~----------~-------r----~~
I
Additional heater only Yes Only the auxiliary heater is used to produce_ h_ e a _ t. The co_ m p _ ressor is s _ w' _ l tched off_ . _
No The heat pump and auxiliary heater are available for producing heat.
Switch off add. heater Yes Heating is generally only provided by the heat pump. The auxiliary heater is only switched on during extra
No
Max. additional heater temp.
Table 20 General settings for an auxiliary heater
1) Not available if Germany is set as the country.
2) Only available if Germany is set as the country.
Maximum auxiliary heater temperature
If the heat pump is not running at its full output (maximum possible
temperature), the auxiliary heater does not need to be operated. It is
DHW. thermal disinfection or alarm operation.
The heat pump and auxiliary heater are available for producing heat.
~
Chapter "Maximum auxiliary heater temperature"
possible to set the temperature atwhich the auxiliary heater switches off
here.
pump is below maximum heat pump temperature that is set here. the auxiliary heater is off.
If the temperature of the heat pump is below the maximum heat pump temperature that is set here. the auxiliary heater operates
I
with a limited output.
L
Table 21 Settings for the pumps in the heat pump
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