Bosch HPC 400 User Manual

Working with the main menu
5.7 Adapting the settings to hybrid systems
Menu : Hybrid system
In an installation with a hybrid system, there are two different
heat sources . One heat source for using regenerative energy
generates heat from geothermal heat , from the air, from
biomass or from solar energy . In addition, a conventional heat
source provides heat generated from oil , gas or electricity.
If a hybrid system is installed, the Hybrid system menu is
displayed.
In this case, the hybrid system consists of a heat pump and a
separate gas . oil or pellet heat source .
Depending on the current situation and heat requirements ,
either the heat pump or the gas/oil heat source may offer a
more favourable energy/price ratio .
The heat pump control constantly compares the current output
data from the heat pump with the set energy/price ratio to
check whether it is more economical to operate the system
using the heat pump or the gas/oil heat source . Based on this,
either the heat pump or gas/oil heat source is operated .
8 BOSCH
The energy/price ratio for electricity/fossil fuel must be
adjusted regularly to the actual price ratios in the Hybrid
system > Energy:price ratio menu .
The energy/price ratio is calculated using the following
formula :
Energy : price ratio = (Cost of electricity per kWh / Cost of gas
per kWh) X 0, 902
Energy : price ratio = (Cost of electricity per kWh / Cost of oil per
liter) X 0.902
Example:
• Cost of electricity : 24 ct/kWh
• Cost of gas : B ct/kWh
Energy:price ratio = (24 Cent/ 8 Cent) X 0,902 = 2,7
This is the ratio which must be entered in the Hybrid system>
Energy:price ratio menu.
The tables below can also be used to determine the energy/
price ratio .
Table 29 Example: Energy/price ratio of electricity price - and gas price
28 HPC400-6720821983(2017 107)
BOSCH
5.8 Smart grid gain
This menu allows you to set whether the energy available in the
smart grid should be used for heating or DHW heating .
Menu : u > Heating
Use energy available in smart to
increase the required room temperature by O·C
to 5 ·C. Dependingon the setting, the smart grid
function may not be used (for O·C increase in
the room temperature) .
I
Forced Use energy available in the smart grid to I
peak increase the required room temperature by 2·C
I ~5~ I
Table 31 Smart grid gain settings for heating
Menu : Smart Grid > DHW
The DHW temperature is not raised if the holiday program is
active .
Working with the main menu
Ves is set here, the DHW is heated to the
temperature set for the DHW operating mode.
It doesn't matterwhich operating mode is active
for DHW heating. I
Table 32 Smart grid gain settings for DHW heating
5.9 Photovoltaic gain
This menu allows you to set whether the energy supplied by the
PV system (photovoltaic system) should be used for DHW
heating or heating .
Menu : PV system
HPC 400 - 6720821983 (2017/07) 29

Bosch HPC 400 Specifications

General

Brand	Bosch
Model	HPC 400
Category	Control Panel
Language	English