Siemens RAB10.1U Tech Tips

Electric Fan Coil Thermostats
RAB10.1U Thermostat with
manual changeover.
Description
Designed to control 2- or 4-pipe fan coil or unit ventilators,
the RAB... Electric Fan Coil Thermostats are an attractive
and economical solution that utilize two-wire, gas
membrane technology.
Providing On/Off control, the RAB... Electric Fan Coil
Thermostats are available with dual scale Fahrenheit/
Celsius models with manual or external changeover.
The RAB20.1U requires an aqua sensor to initiate
changeover.
Features
• Fan Speed Switch (RAB90.1U) for remote switching
location (24...277 Vac)
• Two-point control algorithm for on/off control
• Line voltage
• 2-pipe or 4-pipe fan coil applications
• 3-speed fan control
• Fan on only models for ventilation
• Manual or external changeover
• Two mounting styles: electrical wall box or drywall
• Adjustable upper/lower limit stops
• Dual Fahrenheit/Celsius scale
RAB20.1U Thermostat with
exposed setpoint knob and
external changeover.
Applications
The RAB... Electric Fan Coil Thermostats are
recommended for applications in commercial or light
industrial buildings in conjunction with zone valves,
thermal valves, fans or thermostats.
Note:
ARG70, wall plate, is required for UL compliance in
switching line voltage.
RAB...
RAB30.1U Thermostat with
exposed setpoint knob and
3-speed fan control.
www.usa.siemens.com/hvaccomponents
RAB90.1U 3-speed
fan switch.
A-37