Installation Instructions

32
5. Transfer selected heating output:
Turn rotary selector "
tw
" fully clock-
wise for less than 2 s and then back
into the r.h. control range.
During the transfer, the display
shows "– . – . –".
6. Shut down the boiler.
Matching the circulation pump to the heating system
Only for gas condensing combi boilers:
In the delivered condition, the circulation
pump in heating mode is set to stage 1.
If necessary to suit the heating system,
the circulation pump can be set to
stage 2.
600 800 1000 1200 1400
Flow rate in l/h
100
200
300
400
10
20
30
40
kPa
Residual head in mbar
4002000
500
600
700
A
B
C
D
E
A
Gas condensing boiler 26 kW
Gas condensing combi boiler
26 kW, pump stage 1
B
Gas condensing boiler 30 kW
Gas condensing combi boiler 30
and 35 kW, pump stage 1
C
Gas condensing combi boiler
26 kW, pump stage 2
D
Gas condensing boiler 35 kW
Gas condensing combi boiler 30
and 35 kW, pump stage 2
E
Upper operational limit
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5609 059 GB