salmson Priux home M Serie Instalacion Y Puesta En Servicio página 34

Function key
Radiator heating
system
H
H max
Hs
1
/ Hs
2
H min
Underfloor heating
H
H max
Hs
H min
30
Press
• Start pump venting function.
• activate pump manual restart.
3.2 Applications/control mode and functions
Recommended for two-pipe heating systems with radi-
ators to reduce the flow noises at the thermostatic
valves.
Variable differential pressure (Δp-v):
The pump reduces the delivery head at a decreasing vol-
ume flow in the pipe network to half.
Electrical energy saving by adjusting the delivery head to
the volume flow requirement and lower flow rates.
Q
NOTE
Factory setting: Δp-v, ½ H
Recommended for underfloor heating.
Or for large-sized pipes as well as all applications with-
out changeable pipe network curve (e.g. storage charge
pumps) as well as single-pipe heating systems with radi-
ators.
Constant differential pressure (Δp-c):
The controller keeps the set delivery head constant
irrespective of the conveyed volume flow.
Q
max
05/2017