Assortment / System Description

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• Sustained heating and cooling mode during occupancy/nonoccupancy times
• Night purging during nonoccupancy times in the summer
• Heating/cooling demand: Collection, evaluation and delivery of heat and cooling
energy requests via the KNX bus. Heat and cooling energy demand signal (relay
and DC 0…10 V). Also configurable:
– Modulating output (e.g. for demand-dependent setpoint shift of a refrigeration
machine)
– Relay output (e.g. to switch a refrigeration machine)
– Demand-dependent setpoint shift acting on the primary controller
– Adjustable setpoint increase for use with the primary controller
• Heating/cooling changeover, 2-pipe system (heating/cooling):
– Via digital or analog input
– Via the operating mode selector (Auto/Heating/Cooling)
– Depending on the date or via the KNX bus
• Fault status indication with LED (red) and acknowledgement with button. In
addition:
– 2 relay outputs as fault relay
– 10 universal inputs as fault status inputs
– 4 predefined fault status inputs (monitoring of filter, alarm off, smoke
extraction supply air, and smoke extraction extract air)
• Alarm off (emergency shutdown of plant due to fire)
• Smoke extraction (emergency on of certain aggregates)
• Yearly time switch with automatic summer-/wintertime changeover
• 7-day program (6 switching points per day) and yearly program for holidays/
special days (16 periods of time)
• Operating modes: Auto, Comfort, Precomfort, Economy and Protection with local
operator unit or via digital inputs
• Room control combination with several ventilation controllers or with heating
controller via the KNX bus. Exchange of information, such as room temperature,
operating mode and setpoints
• Display of current operating mode and of reason for current mode
The RMU7x0B universal controllers are supplied with basic types A, C, U, and P.
The basic type represents the basis for the free configuration of customized
applications.
Basic type Typical applications
A Ventilation and air conditioning plants (e.g. control of air handling plants)
C Demand-compensated control of chilled water handling
U Universal applications (e.g. control to flow temperature setpoint)
P Primary air handling. Demand-compensated control of air handling plant
Each of the RMU7x0B universal controllers is supplied with 5 programmed
applications, which means that each controller comes with plant types A01 through
A05 ready stored.
Note: Plant type A01 in RMU710B, RMU720B and RMU730B is not identical; also refer to the
application numbers on the following pages and the description given in Data Sheet N3150.
Switching and monitoring
functions (cont’d)
Time switch and
operating modes
Basic types
Plant types