Siemens LMU54 Series - Page 102

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Siemens Building Technologies Basic Documentation LMU54... / LMU64... CC1P7494en
HVAC Products 7 DHW control (BWR) 07.11.2002
Pump shutdown is implemented in comfort mode (parameter «ZqComfortAus»).
Ab NL
Situation: Cycling 1
DHW
Mode Comfort
OFF/other
Burner ON
OFF
Pump ON
OFF
The pump’s shutdown time starts when the burner is shut down.
The pump will be deactivated when this period of time has elapsed. It will be activated
again when the burner is started up.
Ab Shutdown time comfort
«ZqComfortAus»
NL Overrun time
The above graph applies to «Z_BwComfort1» and «Z_BwComfort2».
If «ZqComfortAus» is parameterized longer than the longest time of «Z_BwComfort1»
and «Z_BwComfort2», the pump will run as long as comfort mode is active.
Shutdown of pump