Siemens RDG400 User Manual download pdf (Page 2)

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Siemens RDG400 room thermostat N3182en

Building Technologies May 27. 2009

Functions

• Room temperature control 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 with 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)

• 3 multifunctional inputs, freely selectable for:

– Operating mode switchover contact (keycard, window contact, etc.)

– Changeover sensor for automatic heating / cooling mode

– External room temperature or return air temperature

– Dewpoint sensor

– Electrical heater enable

– Faults

• Minimum and maximum limitation of air flow signal DC 0…10 V

• Floor heating temperature limit

• Reload factory settings for commissioning and control parameters

Applications

The thermostat supports the following applications, which can be configured via DIP

switches at the rear of the unit. The control output for the damper actuator is either

DC 0…10 V (factory setting) or 3-position (see parameter P47), and for the auxiliary

heating / cooling output ON/OFF, PWM, 3-position or DC 0…10 V.

Application

DIP switch

Control output

DC 0…10 V

Single-duct

• DC 0…10 V damper actuator

•

3-position damper actuator

1 2 3 4 5

OFF

3-position

DC 0…10 V

Single-duct with auxiliary heater

•

DC 0…10 V damper actuator and

ON/OFF, PWM or 3-position auxiliary

heater

•

3-position damper actuator and

DC 0…10 V

auxiliary heater

1 2 3 4 5

OFF

ON/OFF, PWM or 3-position

DC 0…10 V

Single-duct and radiator / floor heating

• DC 0…10 V damper actuator and

ON/OFF, PWM or 3-position radiator

•

3-position damper actuator and

DC 0…10 V

radiator

1 2 3 4 5

OFF

ON/OFF, PWM or 3-position

DC 0…10 V

Single-duct heating and cooling coil

• DC 0…10 V damper actuator and

ON/OFF, PWM or 3-position heating and

cooling

•

3-position damper actuator and

DC 0…10 V

heating and cooling

1 2 3 4 5

OFF

ON/OFF, PWM or 3-position

1 2 3 4 5 6 7 8 9

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Siemens RDG400 User Manual Page 2

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