7.
OPERATING MODE SELECTION DEPENDING ON THE CENTRAL HEATING
INSTALLATION
Factory settings - AUTO (auto-adaptation mode depending on the central heating
system status). Recommended possible pump settings, depending on the heating
system type.
Symbol of the
above
diagram
System description
Pump setting
Optimum
Other admissible
A
Floor heating
AUTO
CP1 / CP2/CP3
B
Heating system with a separate feeding
pipe and separate receiving pipe
AUTO
PP1 / PP2 / PP3
C
Heating system with a single peripheral
feeding-receiving pipe (serial)
PP1
PP1 / PP2 / PP3
•
AUTO (auto-adaptation) adjusts the pump efficiency to the current system heat
demand. Since the efficiency is regulated gradually, it is recommended to set the AUTO
(auto-adaptation) mode at least a week before changing the pump settings.
•
If you decide to use the AUTO (auto-adaptation) mode, the PSI series pump can
remember the points from the previous AUTO mode and set the efficiency automatically
•
The pump settings change from the optimum settings to other optional settings. The
heating installation is a free system, it is impossible to reach an optimum operating mode
within several minutes or hours. If the optimum pump settings do not reach ideal heat
distribution in each room, change the pump settings.
•
Dependency between the pump settings and the efficiency curve, see chapter 10.1.
8.
PUMP START
a.
Before starting the pump, make sure that the system is filled with the liquid (heating
medium), is properly vented and the pressure at the pump inlet reached the minimum
inlet pressure according to the requirements (see chapter 3).
b.
PSI pump venting