CONTROLLER TC24 1
Temperature Controller For Stand Alone
Digital Control of Heat Pumps,
Air-Handling Units and Terminal Units
General
The TC24 Series LCD microprocessor based
controller provides combinations of on/off and
3-wire floating (incremental) or 0-10 VDC con-
trol (P or PI). Large LCD allows users to read
and set the functions accurately. This series
controls a variety of two-pipe and
four-pipe air handling units, heat pumps,
unitary equipment and various cooling and
heating applications.
The microprocessor combines a proportional
plus integral (PI) control algorithm which
provides precise and stable control under
varying system capacity and load conditions.
Most of the functions can be selected and be
set by pressing buttons easily.
Features
?
Touch pad keys
?
Large LCD
?
On/off or 3-wire floating outputs (P or PI)
?
0 ¨C 10 VDC outputs (P or PI)
?
Adjustable P-band and I-time
?
Adjustable dead-band
?
Adjustable set-point limit
?
Fahrenheit or Celsius display capability
?
Manual or automatic changeover
?
Remote and changeover sensor
?
Output status indicator
?
Customizing availability
?
Networking availability
Models
3-wire floating models
TC24T1 Single output (Auto changeover)
TC24T2 Dual output (Four-pipe)
0-10 VDC models
TC24A1 Single output (Auto changeover)
TC24A2 Dual output (Four-pipe)
Specifications
Supply Voltage:
24 VAC +/- 15%, 50-60 Hz
Outputs:
24 VAC, 20 VA (3-wire models)
0 ¨C 10 VDC (at least 1k ohm)
Power Consumption:
24 VAC, 1 VA
Sensing element: NTC (10k ohm at 25
o
C)
Setpoint Deadband:
-1¡+1K (factory setting)
Setpoint Range:
0¡30
o
C
Ambient Limitations:
0¡50
o
C, 90% RH
Agency Approval: EMC and
CE compliant
Shipping Weight:
120 g
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.
An
I
NDUSTRIE
T
ECHNIK
P
RODUCT
