14
7. Setting the pump
Contents:
7.1 Pump setting for system type
7.2 Pump control
.
7.1 Pump setting for system type
Fig. 9
Selection of pump setting for system type
Factory setting = Highest proportional-pressure curve (
PP2
).
Recommended and alternative pump settings according to fig.
Changing from recommended to alternative pump setting
Heating systems are "slow" systems that cannot be set to the optimum
operation within minutes or hours.
If the recommended pump setting does not give the desired distribution of
heat in the rooms of the house, change the pump setting to the shown
alternative.
Explanation to pump settings in relation to performance curves,
see
10. Pump settings and pump performance
.
TM
0
5
1
921
4
512
I
II
III
POWER
ON
I
II
III
POWER
ON
I
II
III
POWER
ON
OK
(
OK
)
I
II
III
POWER
ON
I
II
III
POWER
OWER
O
R
ON
I
II
III
POWER
ON
OK
(
OK
)
I
II
III
POWER
ON
I
II
III
POWER
ON
I
II
III
POWER
ER
ON
OK
(
OK
)
2
2
PHA2
PHA2
AL
AL
ALPHA2 L
I
II
III
POWER
ON
I
II
III
POWER
ON
I
II
III
POWER
ON
OK
(
OK
)
A
B
C
D
Pos.
System type
Pump setting
Recommended
Alternative
A
Underfloor heating
Lowest constant-pressure curve
(
CP1
)*
Highest constant-pressure curve
(
CP2
)*
B
Two-pipe systems
Highest proportional-pressure
curve (
PP2
)*
Lowest proportional-pressure
curve (
PP1
)*
C
One-pipe systems
Lowest proportional-pressure
curve (
PP1
)*
Highest proportional-pressure
curve (
PP2
)*
D
Domestic water
Constant speed, speed I*
Constant speed, speed II or III*
* See
13.1 Guide to performance curves
.
