Summary; Brief Description - Siemens RDG400 Basic Manual

Applications
Features
Functions
6/44
Siemens
Building Technologies
2

Summary

2.1

Brief description

· Single-duct system
· Single-duct system with electric heater
· Single-duct system and radiator/floor heating
· Single-duct system with heating/cooling coil
· 2 multifunctional inputs and 1 digital input for keycard contact, external sensor,
etc.
· Operating modes: Comfort, Economy and Protection
· Automatic or manual heating/cooling changeover
· Adjustable commissioning and control parameters
· Minimum and maximum setpoint limitation
· Backlit LCD
· AC 24 V operating voltage
· Modulating PI/P control
· Output DC 0...10 V
· Output signal inversion (DC 10...0 V) as an option
· Output On/Off, PWM or 3-position control
· Adjustable minimum and maximum limitation of air flow output signal
· Maintenance of room temperature via built-in temperature sensor or external
room temperature/return air temperature sensor
· Automatic or manual changeover between heating and cooling mode
· Selection of applications via DIP switches
· Selection of operating mode via the operating mode button on the thermostat
· Display of current room temperature or setpoint in °C and/or °F
· Minimum and maximum setpoint limitation
· Button lock (automatic or manual)
· 1 digital input, freely selectable for:
– Operating mode switchover contact (keycard)
– Automatic heating/cooling changeover contact
– Dewpoint sensor
– Electric heater enable
– Fault input
· 2 multifunctional inputs, freely selectable for:
– Operating mode switchover contact (keycard)
– Automatic heating/cooling changeover sensor
– External room temperature or return air temperature
– Dewpoint sensor
– Electric heater enable
– Fault input
· Floor heating temperature limit
· Reloading factory settings for commissioning and control parameters
· Wizard function to select working temperature unit °C or °F
RDG400 Basic Documentation CE1P3182en
2015-05-20