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Building Technologies Boiler sequence controller RMK770 CE1P3132en
HVAC Products 14 Communication 23.04.2009
14.5.1 Heat demand and load control
The heat demand and the load control signals are exchanged via the heat distribution
zones.
Main menu > Commissioning > Communication > Distribution zones
Operating line Range Factory setting
Heat distribution zone 1…31 1
Heat distr zone consumer side ---- / 1…31 2
Outside temperature zone ---- / 1…31 1
In case of boiler sequencing, the boiler sequence manager receives the heat demand
signals.
For this reason, the heat distribution zone must be set on every RMK770 that accom-
modates a boiler sequence manager.
Since the boiler sequence may be using a primary controller, it must be decided
whether the heat demand signals shall be fed to the primary controller or directly to the
main header.
According to this differentiation, a “Heat distribution zone“ and a ”Heat distr zone con-
sumer side“ can be defined.
The boiler sequence manager receives the heat demand signals from these 2 heat
distribution zones.
The setting whether the possibly existing internal heating circuit in the RMK770 shall be
linked to the primary controller or main header is not made on the
Communication menu,
but on the following menu:
Main menu > Commissioning > Extra configuration > Heating circuit
Operating line Range Factory setting
Heat req heat circuit acting on Main distributor / Primary
controller
Main distributor
14.5.2 Outside temperature
The outside temperature signals are exchanged via the outside temperature zone.
Main menu > Commissioning > Communication > Distribution zones > Outside temperature
zone
If an outside sensor is connected to the controller with outside temperature zone 5, that
controller transmits its outside temperature to all controllers that use the same outside
temperature zone.
Outside temp. zone = 5
Controller 1
RM..
RM..
Outside temperature
3131Z14
Outside temperature
Outside temp. zone = 5
Controller 2
Several outside temperature zones are possible.
When using setting “---“, the controller does not send the outside temperature signal via
bus.
Example
Outside temperature
zone
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