描述
Description
Siemens RDG400 is a versatile Single Duct VAV Thermostat Controller for low voltage stand-alone applications such as in hospitality, dormitory or light commercial applications.
Multifunctional inputs can be configured for keycard input, window contacts or external sensors. Select from various control strategies including Comfort, Energy Saving, or Freeze Protection. A backlit display with intuitive layout simplifies user interaction during commissioning and daily operation.
Siemens also offers a broad selection of sensors and actuators that comprise cost-efficient application bundles that are compatible with the RDG400.
Features
- Room temperature control using built-in temperature sensor or external room temperature/return air temperature sensor
- Three multifunctional inputs, configurable for:
– Operating mode switchover contact (keycard, window contact, and so on)
– Sensor for automatic heating/cooling mode changeover
– External room temperature or return air temperature sensor
– Dew point sensor
– Fault sensing - Automatic or manual heating and cooling mode changeover
- Supports electric heater
- Simple application configuration using DIP switches
- Minimum and maximum setpoint limitation
- Floor heating temperature limit
- Easy operation mode selection with intuitive controls
- Button lock (automatic or manual)
Applications
Commercial VAV applications include single-duct; single-duct with auxiliary heater; single-duct and radiator/floor heating; and single-duct heating and cooling coil.
- Single-duct:
DC 0 to 10V damper actuator; 3-position damper actuator - Single-duct with auxiliary heater.
DC 0 to 10V damper actuator and ON/OFF, PWM or 3-position auxiliary heater, 3-position damper actuator and DC 0 to 10V auxiliary heater. - Single-duct and radiator/floor heating:
DC 0 to 10V damper actuator and ON/OFF, PWM or 3-position radiator, 3-position damper actuator, and DC 0 to 10V radiator. - Single-duct heating and cooling coil:
DC 0 to 10V damper actuator and ON/OFF, PWM or 3-position heating and cooling, 3-position damper actuator, and DC 0 to 10V heating and cooling.
