Comments switch settings:
A) The power limitation is set ex works to 80% of P max
to reduce noise from excessive pump output V.
The max. pump output can be changed if need be («OFF»)
B)
Proportional pressure is recommended in most systems.
Constant pressure can make sense in the following systems:
Former gravity heater with very little pressure loss.
Primary circulation pumps in system with little pressure loss.
C) Auto minimum speed
If the flow temperature in the system drops by 10 to 15 °C,
the pump output is reduced to min 1 after circa 0.5 to 2h.
If the flow temperature increases by 10 °C,
the normal operation immediately commences.
SWITCH 1 to 5
Setting ex works:
SWITCH
SWITCH
1
Power limitation
Power limitation
A)
ON
OFF
2
Proportional
Constant
pressure
pressure B)
3
Minimum speed 1
Minimum speed 2
min. 1
min. 2
4
Analogue input OFF
Analogue input ON
(71-72)
(71-72)
5
Auto Minimum speed
Auto Minimum speed
C)
OFF
ON
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A_AD 16.05.2007 8:22 Uhr Seite 57
