Samson 5100, 5179 Locking manual level, System-widefunctions, Settings for flow rate limitation

System-wide functions

Settings for flow rate limitation

Functions	WE	Configuration
Limitation of heat meter (WMZ)	OFF	Co5 -> Fb08 = OFF
Pulse input for flow rate or capacity limitation	OFF	Co5 -> Fb09 = ON, select: U
		CONST:	Limitation constant
		4-Pt:	Limitation acc. to
	10		4-point characteristic
		Pulse weighting / 0.1 to 10
Parameters	WE	Parameter level / Range of values
Maximum flow rate of the entire system	9 m3/h	PA5 / 0.01 to 99.9 m3/h
Maximum flow rate of the DHW heating	9 m3/h	PA5 / 0.01 to 99.9 m3/h
Proportional-action coefficient for the limitation	1.0	PA5 / 0.1 to 10
Select CONST additionally for:
Maximum flow rate of the heating	9 m3/h	PA5 / 0.01 to 99.9 m3/h
Select 4-Ptadditionally for:
Outdoor temperature Point 1	–15 °C	PA5 /–30 to 90 °C
Point 2	– 5 °C
Point 3	5 °C
Point 4	15 °C
Maximum flow rate limitation, points 1 to 4	9 m3/h	PA5 / 0.01 to 99.9 m3/h

A second pulse counter can be connected at terminal 29. The pulses entered are stored in the holding registers 40031 (low byte) and 40032 (high byte). The associated duration on the holding registers 40035 (low byte) and 40036 (high byte). First, the low byte counts upwards (0 to 65535). If several pulses arrive, the counting value is formed by multiplying the low byte with the high byte (32-bit value).

7.12 Locking manual level

To protect the heating system, this function can be used to lock manual level. When this function has been activated, automatic mode is started when the rotary switch is set to +, – or 0.

Function	WE	Configuration
Locking manual levels	OFF	Co5 -> Fb10 = ON

66EB 5179 EN