Bosch RC Multi Handbuch Seite 3

Scope of delivery
• Multiregulator
• Installation instructions
General
Multiregulator must only be installed and commissioned
by an authorised installer.
When installing accessories the PT1000 sensor must be
used. The mixing valve motor must have a 0-10V control
signal.
One Multiregulator is required per function (pool, mixing
valve group, room sensor).
Connecting the Multiregulator
Fig. 1, page 18:
[1] Presence button (without function in normal mode. Only on
installation)
[2] Increase button
[3] Decrease button
Programmable multiregulator that communicates via 2-wire RS485 with
the control unit in the heat pump, and can also be used as room sensor/
room controller. The regulator can also control an extra mixed circuit, for
example, pool control and hot water by using connected external
sensors.
Fig. 2, page 18:
[1] Multiregulator - RC Multi
Fig. 3, page 18:
[Cx.VC0] Mixing valve
[a.] +
[b.] -
[c.] 0-10 V
[Cx.PC1] Alarm signal (SSM) is connected between 32 and 40
[Cx.TC0] Sensor for mixing valve or pool is connected between 30
and 41. When used as a room sensor there is a built-in
sensor in RC Multi
[Alt. 1] Circulation pump continuous mode
[Alt. 2] Circulation pump summer disconnection
[Ext. com.] External communication RS485
▶ The power supply to the Multiregulator is connected on terminal 307
(G) and 317 (G0) as shown in the wiring diagram for the heat pump,
see the documentation enclosed with the heat pump.
▶ Connection 42 is connected to terminal block 61 in the heat pump,
connection 43 is connected to terminal block 60 in the heat pump as
shown in the wiring diagram for the heat pump, see the
documentation enclosed with the heat pump.
When a circulation pump without an alarm signal (SSM)
is used, put in a jumper between 32 and 40 ( figure 2).
Setting the parameters in the menu
Set parameters: Press the Increase and Decrease buttons at the same
time for approx. 5 seconds until the Service indication lights up in the
display.
Multiregulator - RC Multi – 6 720 813 114 (2014/12)
Now press the Increase button twice. Scroll between the parameters by
pressing the Increase and Decrease buttons. When the correct
parameter is selected press the Presence button, after which the value
of the parameter is shown and the parameter number disappears.
The value of the parameter can now be changed with the buttons, by
holding the Increase or Decrease button pressed the value in the
display changes.
Confirm/Undo: To confirm the change to the parameter press the
Presence button again, whereby the display will then show the
parameter number.
Setting the parameters in the menu
To control accessories, two parameters must be set in the regulator. The
remaining settings are made via the heat pump control unit.
▶ Parameter 78 (P78 in the display): Must be set to the same PLA-
address as chosen in the heat pump (normally 1).
▶ Parameter 79 (P79 in the display): Must be set to unit number (1-9)
+20, i.e. 21-29. Accessory 1 is set to 21, accessory 2 to 22, etc.
Return: After approx. 1 minute, or when you press Increase and
Decrease at the same time while in the menu, the display returns to the
normal view. The Exit text is shown in the display after the last
parameter.
Installation and addressing of the Multiregulator must be
carried out before settings are made in the Control unit.
Only the above settings are made in the Multiregulator.
All other settings are made in the heat pump control unit.
See the heat pump manual for settings for the heat
pump.
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