General
The RT900 Series room thermostats provide
on/off control, consistent performance and
contemporary styling. This series controls a
variety of two-pipe and four-pipe fan coil
systems as well as other heating and cooling
applications.
RT900 is an electro-mechanical thermostat for
room mounting. The sensing element is a
quality bi-metal which reacts to change in
temperature by creating a movement as a
switching function. The thermostat can also
control the fan speed with three position
continuously or automatically with the
temperature switching action.
Features
.
Attractive contemporary styling
.
High quality bi-metal sensor provides
constant and close
.
temperature differential over the whole
temperature range
.
System ˇ°OFFˇ± position breaks all circuits
.
Simple on-site set-point re-calibration
.
All slide switches for ease of operation
.
Easy wire termination
.
Optional set-point range limit stops
available to conserve energy
.
Customizing available
Models
RT901
System switch: On/Off
Fan Switch: Hi-Med-Low
RT902
(Two-pipe)
System Switch:
Heat/Off/Cool
Fan Switch: Hi-Med-Low
RT903
(Four-pipe)
System Switch:
Heat/Off/Cool
Fan Switch: Hi-Med-Low
Specification
Operating Differential Approximately 1K
Range 10ˇ30
o
C
Sensing Element B-metal type
Housing Materials Self-extinguishing, molded ABS
Electrical Rating
thermostat 6(1)A cooling, 6(1.5)A heating,
switches 6A resistive, 4A inductive
Ambient Limitation 0ˇ50
o
C
Wire connection Screw-down connection,
wire size 1mm
2
or 18AWG
Agency Approval CE compliant
Shipping weight 180g
ROOM THERMOSTAT RT900 2
For Low Voltage and Line Voltage
Control of Valves, Relays and Fan Motors
in Fan Coil or Heat Pump Units
The specification above are normal and conform to generally
acceptable industry standard. Cyrus is not responsible for
damages resulting from misapplication or misuse of its products.
