User Manual

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Siemens RDF800… A6V101123362_en--_d
Smart Infrastructure Touch screen flush-mount standalone room thermostats 2019-10-29
Use
Room temperature control (heating or cooling) in individual rooms and zones by
means of:
• 2-pipe fan coil units
• 2-pipe fan coil units with electrical heater
• 4-pipe fan coil units
• Chilled /heated ceiling
• Chilled /heated ceiling and electrical heater
• Chilled ceiling and radiator / under floor heating
• Compressors in DX-type equipment
• Compressors in DX-type equipment with electrical heater
The room thermostats are delivered with a fixed set of applications. The relevant
application is selected:
Local DIP switch and HMI
Functions
• Room temperature control via built-in temperature sensor or external room
temperature / return air temperature sensor
• Changeover between heating and cooling mode (automatically via local sensor
or manually)
• Selection of applications via DIP switches
• Selection of operating mode via touch screen
• 1- or 3-speed fan control (automatically or manually)
• Display of current room temperature or setpoint in °C and/or °F
• Minimum and maximum limitation of room temperature setpoint
• Keylock function: unlock, total lock and setpoint
• 2 multifunctional inputs, freely selectable for:
− External room temperature or return air temperature sensor
− Sensor for automatic heating / cooling changeover (RDF…)
− Window contact
− Dew point sensor (RDF…)
− Electric heater enable (RDF…)
− Fault input
− Presence detector
• Advanced fan control function, such as: fan kick, fan start delay, and selectable
fan operation (enable, disable or depending on heating or cooling mode)
• Purge function together with 2-port valve in a 2-pipe changeover system
• Reminder to clean fan filters (adjust with P62)
• Floor heating temperature limitation
• Reload factory settings for commissioning and control parameters
• Wizard function for easy commissioning via HMI
The functional descriptions for the thermostat can be referred to the basic
documentation P3174.
Applications
The thermostats support the following applications, which can be configured using
the DIP switches on the inner side of the thermostat's front panel.
Note: