Worcester ZWBR 7-30 R 30 HE PLUS COMBI Service Booklet page 13

The factory setting is:
7.0 Pump map (heating) 3 Const. pressure low
0,6
H
(bar)
0,5 1
2
0,4
0,3
0,2
0,1
0
0 200 400 600
Fig. 3 Constant pressure
1-5 Caracteristics
H Pressure
Q Water circulation rate
0,6
H
(bar)
0,5
4
5
0,4
0,3
0,2
0,1
0
0 200 400 600
Fig. 4 Proportional pressure
If this parameter is set to Pump step adjustable then
the pump speed set under function 7.1 Map pump
step (heat.) is active.
7 181 465 347 (05.01)
Supplied By www.heating spares.co Tel. 0161 620 6677
3
800 1000 1200 1400 1600
Q
(l/h)
6 720 610 587-43.1O
800 1000 1200 1400 1600
Q
(l/h)
6 720 610 587-44.1O
7.1 Map pump step (heat.)
This service function corresponds to the pump speed
switch used on conventional heating pumps.
However, the setting is only active if function 7.0 Pump
map (heating), is set to Pump step adjustable.
The factory setting is:
7.1 Map pump step (heat.) 7
0,6
H
(bar)
0,5
0,4
0,3
0,2
4
3
2
0,1
0
0 200 400 600
Fig. 5
Caracteristics
2-7 Caracteristics
H Pressure
Q Water circulation rate
7.2 Antiblock. map pump
The appliance is supplied with this function activated.
If the pump threatens to jam, an oscillating pump action
is activated. Afterwards, the required operating mode is
continued.
Boiler service functions
7
6
5
800 1000 1400 1600
1200
Q (l/h)
6 720 610 587-45.1O
13