Digital Output Signal - Rehau NEA SMART 2.0 Service Manual

4.7.2

Digital output signal

Digital output signals are potential free relay outputs
(dry contacts).
OUTPUT signal Available on
Pump local Base, R-Module
Pump global Base, R-Module
Pump mixed circuit U-Module
(configured for mixed circuit)
Boiler Base, R-Module
Chiller Base, R-Module
HEATING Base, R-Module
COOLING Base, R-Module
Valve dehumidifier Base, R-Module, U-Module
Compressor dehumidifier Base, R-Module, U-Module
Alarm Base, R-Module
Tab. 4-3 Available digital output signals and the condition to activate them
Condition to activate signal
A room assigned to this base or a connected R-module has a current demand
signal (heating or cooling) or a dehumidifier allocated to the base or connected
R-module triggers the "hydraulic" valve (only in cooling mode)
Any room of the entire installation has a current demand signal (heating or cooling)
or
any of the dehumidifier triggers the "hydraulic" valve (only in cooling mode)
Demand signal for mixed circuit has been generated
Any room of the entire installation not supplied via a mixed circuit triggers a hea-
ting demand signal or any of the mixed circuits causes the mixing valve to open by
more than the pre-defined amount/level
Same as above, but for cooling demand signal
System is in heating mode. Can be used to control valves or to signal this conditi-
on to other devices or to a BMS
Same as above, but for cooling
Dehumidification sequence started. Valve opens before compressor starts.
Dehumidification started
error signal
33