Overview Of Pump Operation - Siemens RVA63.280 Basic Documentation

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Siemens Building Technologies
Landis & Staefa Division
4.10

Overview of pump operation

Straightforward checking of proper functioning of the various pumps.
Operation of the various pumps depends on a number of factors. To enable you to
quickly understand the different interrelationships when commissioning and checking
the plant, please make use of the list below. It provides information about the
combinations of settings (pump setting / heat demand) where a pump runs :
Application
Q2 Pump HK1
Q6 Pump HC2
Q3 D.h.w. pump
When there is no more demand for heat, the activated pumps continue to run.
pump overrun time (8 OEM).
1)
Reasons for an invalid demand for heat can be, for example, summer/winter
changeover, 24-hour heating limit, quick setback, or room temperature limitation by
room sensor.
Basic Dokumentation RVA63.280, RVA53.280
Pump behavior with valid
by HC via H1 / H2
Runs when HK1 Does not run
demands heat
Runs when HC2
Does not run
demands heat
Does not run Does not run
1)
demand for heat:
by d.h.w.
Does not run
Does not run
Runs when there
is demand for
heat
Also refer to
CE1P2374E
19.04.2001