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2 Overview
Use
The RDB160BN BACnet MS/TP room thermostats are used for the following
types of system:
● Fan coils with On/Off, modulating or DC control outputs (electric heater
only with On/Off output):
– 2-pipe system
– 2-pipe system with electric heater
– 4-pipe system
● Chilled/heated ceilings (or radiators) with On/Off, modulating or DC control
outputs (electric heater only with On/Off output):
– Chilled/heated ceiling
– Chilled/heated ceiling with electric heater
– Chilled ceiling with radiator
The RDB160BN controls:
● One 1-speed, 2-speed, 3-speed or DC fan
● Up to two On/Off, PWM, DC 0…10 V or one 3-position valve actuators
The RDB160BN is used in systems with:
● Heating or cooling mode
● Automatic heating/cooling changeover
● Heating and cooling mode (e.g. 4-pipe system)
General functions
● Room temperature control with built-in temperature sensor, external room
temperature or return air temperature sensor
● Changeover between heating and cooling mode (automatic with local
sensor or BACnet object)
● Backlight LCD
● Supply air limitation
● Automatic valve exercise
● Mold protection
● Operating modes selectable via On/Off button: Comfort, Standby (Economy)
and OFF
● Advanced fan control function, e.g. selectable fan operation (enable, disable
or based on heating or cooling mode)
Setpoints and display
● Minimum and maximum limitation of room temperature setpoint
● Display of temperature or setpoint
● Button lock
Fan
● 1-speed, 2-speed, 3-speed or DC 0...10 V fan control (automatically or
manually)
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