Installation of accessories
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AWE – 6721835317 (2021/09)
9.8 Room controller (Bosch CR10H only)
If the room temperature-dependent control unit is installed after
commissioning the system, it must be set as the control unit for heating
circuit 1 in the commissioning menu ( controller manual).
▶ Install the room temperature-dependent control unit according to the
instructions for the room temperature-dependent control unit.
▶ The selection “Ext room controller” must always be set to “no” even if
the room controller is installed.
▶ Before commissioning the system, set the room temperature-
dependent control unit as remote control "Fb" ( manual for room
temperature-dependent control unit).
▶ Before commissioning the system, make the setting for the heating
circuit at the room temperature-dependent control unit, if required
( manual for room temperature-dependent control unit).
▶ When commissioning the system, specify an installed room
temperature-dependent control unit as the control unit for heating
circuit 1 ( controller manual).
▶ Make the room temperature settings as described in the controller
manual.
9.9 Several heating circuits (with heating circuit module)
In the default setting, a heating circuit without mixer can be controlled
via the controller. If other circuits are installed, a heating circuit module
is required for each one.
▶ Install the heating circuit module, mixer, pump and other
components according to the selected system solution.
▶ Before commissioning the system, make the setting for the heating
circuit at the heating circuit module, if required ( manual for
heating circuit module).
▶ Make the settings for several heating circuits as described in the
controller manual.
9.10 Circulation pump for DHW PW2
The domestic hot water circulation pump PW2 is connected to the
installation module. The settings for operation are made on the control
unit (instructions for the control unit).
9.11 Installation with swimming pool
NOTICE
Danger of faults!
If the swimming pool mixer is installed in the wrong location in the
system, faults may occur. The swimming pool mixer must not be installed
in the flow where it could block the pressure relief valve.
▶ Assemble the swimming pool mixer in the return to the indoor unit (as
shown in the example image for swimming pool installation).
▶ Mount the tee in the flow from the indoor unit upstream of the bypass.
▶ Do not install the swimming pool mixer as heating circuit in the
system.
A prerequisite for using the swimming pool heating is the installation of a
swimming pool module (accessory).
▶ Installing the swimming pool ( swimming pool instructions).
▶ Installing the swimming pool mixer.
▶ Insulate all pipes and connections.
▶ Install the pool module ( Instructions for the pool module).
▶ Set the elapsed time of the swimming pool diverter valve during
commissioning ( instructions of control unit).
▶ Make the necessary settings for the swimming pool mode (
instructions for control unit).
Fig. 24 Example showing swimming pool installation
[1] Swimming pool module
[2] POOL
[VC1] Swimming pool mixer
[HS] Heating system
9.12 Buffer, VC0 bypass valve
When using a buffer cylinder and DHW cylinder, a 3-way valve (VC0)
must be installed so the hydraulic system can be provisionally short-
circuited between the indoor and outdoor unit if required.
Fig. 25 Buffer, VC0 bypass valve
[1] DHW cylinder
[2] Buffer cylinder
[3] Heat Pump
[VC0] 3-way valve
[HS] Heating system
If a 3-way valve is not installed in a hydraulic system incorporating buffer
cylinders (VC0), malfunctions may occur and efficiency may be reduced.
M
VW1
B
AB
A
M
VC0
B
AB
A
HS
0010036555-001
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