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Siemens RDG1... room thermostats N3181en
Building Technologies May 28. 2009
Use
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
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 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)