Service
5
22
Installation and service instructions RC20 room controller • Issue 08/2006
We reserve the right to make any changes due to technical modifications.
5.8
Pump type
1)
This parameter determines which pump is used to pump the
heating water through the boiler: an internal pump ("1") or a
heating circuit pump ("2").
USER NOTE
This parameter is not shown if the room controller is installed as
a remote control unit (P1
≠
0). In this case, adjust the DHW on the
RC30/RC35.
P5
Setting
Explanation
0
No pump
1
Internal pump (factory setting):
In the event of a DHW or heat demand from the
UBA3/MC10 the internal pump is switched on at
the same time as the burner and switches off again
after the preset pump run-on time. If a low loss
header or a three-way changeover valve is
installed, you must select "1".
2
Heating circuit pump:
The heating circuit pump is started by the
UBA3/MC10 when the heating circuit demands
heat.
USER NOTE
This parameter is not shown if the room controller is installed as
a remote control unit (P1
≠
0). In this case, set the pump type on
the RC30/RC35.
1)
Not possible for operation using boilers with UBA 1.5.
