SIEMENS RS485 Flush Mounted Room Thermostat User Manual
Use
Applications
Room temperature control (heating or cooling) in individual rooms and zones by means of:
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2-pipe fan coil units
2-pipe fan coil units with electric heater
4-pipe fan coil units
The room thermostat controls:
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One ECM fan
One or two on/off valve actuators
One on/off valve actuator and one 1-stage electric heater
One 3-position valve actuator
One 1-stage compressor with electric heater
Used in systems with:
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Heating or cooling
Automatic heating/cooling changeover
Manual heating/cooling changeover
Heating and cooling (e.g. 4-pipe system)
The room thermostat is delivered with a fixed set of applications.
The relevant application is selected and activated during commissioning using one of the
following tools:
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Local DIP switch and HMI
Modbus commissioning tools
Functions
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Maintain room temperature via built-in temperature sensor or external room
temperature/return air temperature sensor
Changeover between heating and cooling mode (automatic changeover via local
sensor/bus or manual changeover via buttons)
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Select application via DIP switches or commissioning tools
Select operating mode via operating mode button on the thermostat
ECM fan control (automatic or manual)
Display current room temperature or setpoint in °C and/or °F
Minimum and maximum limitation of room temperature setpoint
Key lock (automatic, manual or via bus)
B1 input freely selectable for (RDF660MB/MM only):
– External room temperature sensor or return air temperature sensor
– Automatic heating/cooling changeover sensor
S1 input freely selectable for (RDF660MB/MM only):
– Window contact
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– Presence detector
– Hotel keycard
2 multifunctional inputs (X1 and X2), freely selectable for (RDF660MB only):
– External room temperature sensor or return air temperature sensor (AI)
– Automatic heating/cooling changeover sensor (AI)
– Window contact (DI)
– Dew point sensor (DI)
2
Siemens
A6V12005486_en--_d
2022-11-14
Smart Infrastructure
| General | Details |
|---|---|
| Name | SIEMENS RS485 Flush Mounted Room Thermostat User Manual |
| Make | SIEMENS |
| Language | English |
| Filetype | PDF (Download) |
| File size | 1.07 MB |
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