Supplied By www.heating spares.co Tel. 0161 620 6677
BOILER SERVICE FUNCTIONS - CDI COMBI & SYSTEM BOILER
8 716 115 748 (2009/09)
20
The pump map can be selected within:
•
0
(Pump step adjustable), see service function
1.d
(Map pump step (heating))
•
1
(Constant pressure high)
•
2
(Constant pressure middle)
•
3
(Constant pressure low)
•
4
(Proportional pressure high)
•
5
(Proportional pressure low)
The factory setting is:
1.C Pump map (heating)
4
(Proportional pressure
high)
Fig. 12 Constant pressure
Fig. 13 Proportional pressure
1-5
Characteristics
H
Pressure
Q
Water circulation rate
If this parameter is set to
0
then the pump speed
set under function
1.d
(Map pump step (heating))
is active.
1.D MAP PUMP STEP (HEATING)
(combi & system only)
This service function corresponds to the pump speed
switch used on conventional heating pumps.
However, the setting is only active if function
1.C
(Pump
map (heating)), is set to
0
.
The factory setting is:
1.d Map pump step (heating)
7
Fig. 14
Characteristics
2-7
Characteristics
H
Pressure
Q
Water circulation rate
In order to save as much energy as
possible and to minimise the possibility of
water circulation noise, a low
characteristic should be chosen.
200
400
600
800
1200
1400
1000
1600
0
0,6
0,5
0,4
0,3
0,2
0,1
0
(bar)
H
Q
(l/h)
1
2
3
200
400
600
800
1200
1400
1000
1600
0
0,6
0,5
0,4
0,3
0,2
0,1
0
(bar)
H
Q
(l/h)
4
5
200
400
600
800
1200
1400
1000
1600
0
0,6
0,5
0,4
0,3
0,2
0,1
0
(bar)
H
Q
(l/h)
3
2
4
5
6
7
6 720 612 126-45.1O
