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Use
Functions
2/12
Siemens
Building Technologies
The RDG1... room thermostats are designed for use with the following types of system:
Fan coil units via ON/OFF or modulating control outputs:
• 2-pipe system
• 2-pipe system with electrical heater
• 2-pipe system and radiator / floor heating
• 4-pipe system
• 4-pipe system with electrical heater
• 2-stage heating or cooling system
Chilled / heated ceilings (or radiators) via ON/OFF or modulating control
outputs:
• Chilled / heated ceiling
• Chilled / heated ceiling with electrical heater
• Chilled / heated ceiling and radiator / floor heating
• Chilled / heated ceiling, 2-stage cooling or heating
Heat pumps with dx type equipment:
• 1-stage compressor for heating or cooling
• 1-stage compressor for heating or cooling with electrical heater
• 1-stage compressor for heating or cooling and radiator / floor heating
• 1-stage compressor for heating and cooling with reversing valve
• 2-stage compressor for heating or cooling
•
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 via operating mode button on the thermostat
•
1- or 3-speed or DC 0...10 V fan control (automatic or manual)
•
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
•
Advanced fan control function, i.e. fan kick, fan start, selectable fan operation
depending on heating / cooling mode, fan start delay in systems with ON/OFF
control
•
Purge function in conjunction with 2-port valve in systems with automatic heating /
cooling changeover
•
Reminder to clean fan filters
•
Floor heating temperature limitation
•
Reload factory settings for commissioning and control parameters
•
7-day time program: 8 programmable timers to switch over between Comfort and
Energy Saving mode (RDG100T)
•
Infrared remote control (RDG100T)
RDG1... room thermostats
N3181en
May 28. 2009
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