Dhw Circulation Pump Pw2 (Accessory); Several Heating Circuits (With Heating Circuit Module); Installation With Swimming Pool - Bosch Compress 3400i AWS Installation Manual

Fig. 24 Contact open, connection B open
In heating mode, the contact is open and connection B is open.
9.7

DHW circulation pump PW2 (accessory)

The pump settings are made on the control unit of the indoor unit (
instructions of the control unit).
9.8

Several heating circuits (with heating circuit module)

At delivery, a heating circuit without mixing valve can be controlled via
the controller. If more circuits are to be installed, a heating circuit module
is required for each one.
▶ Install the heating circuit module, mixing valve, heating circulation
pump and other components according to the selected hydraulic
solution.
▶ Connect the heating circuit module to the installer module in the
electric box of the indoor unit on terminal EMS.
▶ Perform the settings for multiple heating circuits according to the
instructions for the control unit.
9.9

Installation with swimming pool

NOTICE
Danger of faults!
If the swimming pool mixer is installed at 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 connection piece 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).
▶ Install 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 for control unit).
Compress 3400i AWS – 6721852066 (2023/01)
▶ Make the necessary settings for the swimming pool mode (
instructions for control unit).
1
1
2
M
VC1
Fig. 25 Example showing swimming pool installation
[1] Swimming pool module
[2] Swimming pool
[VC1] Swimming pool mixer
[HS] Heating system
Installation of accessories
HS
M
0010035917-001
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