Basic Documentation

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Siemens Universal controllers RMU710B, RMU720B, RMU730B CE1P3150en
Building Technologies Refrigeration demand 03.10.2011
26.2 Activate block (basic type C)
x
Kältebedarf
QY
d
Cooling demand
Supervision
The refrigeration demand block is always active for basic type C and the
refrigeration demand signals are always received. To send the entire refrigeration
demand from the refrigeration distribution zone, "Refrig distr zone source side"
must be entered. Refrigeration demand can also be issued modulating via the
refrigeration demand relay or refrigeration demand modulating.
Main menu > Commissioning > Communication > Distribution zones >
Operating line Range Factory setting
Refrigeration distribution zone 1…31 1
Refrig distr zone source side ----, 1…31 ----
The signal is sent as temperature request. Refrigeration demand in °C is made up
of the current setpoint of control loop 1 and a temperature reduction. The reduction
helps compensate line losses.
Main menu > Commissioning > Communication > Distribution zones >
Operating line Range Factory setting
Refrig demand setp reduction 0...50 K 0 K
A checkback signal on existing refrigeration via communication is not possible.
Setting values
Setting values