Siemens RVL471 - 21 Function Block Derivative Action Time D.h.w. Heating Via Heat Exchanger; Operating Line; Description

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Siemens Building Technologies Basic Documentation RVL471 CE1P2524E
HVAC Products 21 Function block "Derivative action time d.h.w. heating via heat exchanger" 23.10.2002
21 Function block "Derivative action time
d.h.w. heating via heat exchanger"
With plant types x–4, this function block permits entry of the D-part with d.h.w. control.
21.1 Operating line
Line Function, parameter Unit Factory
setting
Range
137 Derivative action time of control (Tv) °C 0 0...255
21.2 Description
The 3-position controller provides PID mode. The derivative action time Tv (D-part) can
be set on operating line 137.