Viconics C1012 User Manual
C1012
Electronic Thermostat
APPLICATIONS
• VAV and by-pass units control
state floating output
• Single stage of auxiliary reheat
with modulating tri-
ADVANCED DESIGN AND PI CONTROL
Advanced PI control thermostats provides precise
temperature control and eliminates wasted energy caused
by the typical On / Off cycling in conventional thermostats.
Thus the room occupant is able to reduce the thermostat
setpoint to the lowest comfortable setting. The result is
energy savings ranging from 5% to 10%.
DIMENSIONS
BASE
WIRING
FROM BACK
SECURITY SCREW
3.275"
( 83 mm )
COVER TOP
80
70
60
2.8"
( 71 mm )
2.8"
( 71 mm )
90
F
50
4.5"
114 mm
1.275"
32 mm
COVER INSIDE
5432176
SCREW TERMINALS
2.8"
( 71 mm )
MODULATING TRI-STATE FLOATING OUTPUT
For use with tri-state floating actuator (CW/Off/CCW)
having a 1 to 2 minutes timing per 90° of rotation. This is
a true multi positions modulating output. It gives
performances which is equivalent to more expensive 0 to
10 Vdc type output.
SINGLE STAGE OF AUXILIARY REHEAT
To be used with On/Off 2 position 24 Vac devices like:
• On/Off N.C. electric valves
• Electric duct heater relays
• Electric base board relays
See and study wiring diagrams carefully to wire reheat
devices using a separate power source.
COVERS
Factory standard scale is 10°C to 32°C for horizontal
mounting. °F & °C scales are available on special order
for horizontal or vertical mounting. The thermostat and the
terminals are an integral part of the cover. The cover
hooks onto the base for easy service and is locked in
place using a security screw.
SPECIFICATIONS
Operating
Conditions:
Sensor: Local 47 K NTC thermistor
Resolution: ± 0.1 °C ( ± 0.2 °F )
Control accuracy
(calibrated):
Ranges: 50 °F to 90 °F Standard
Outputs: Isolated Triac: 30 Vac at ½ A max.
Power: 24 VAC -15%, +10% 50/60 Hz; 2 VA
0 °C to 50 °C ( 32 °F to 122 °F )
0% to 95% R.H. non-condensing
± 0.2 ° C ( ± 0.4 °F )
( 10 °C to 32 °C ) Optional
Specifications and equipment are subject to change without prior
notice.
HOW TO ORDER
Thermostat C1010-02 C1011-02 ** C1012-02 C1013-02 **
Tri-state output in cooling mode
Tri-state output reverses to heating mode
with change over sensor
Auxiliary reheat 1 stage 1 stage
** these packages include the auto change over sensor.
zzzz
zz
C1012-02 WIRING
a
C1012-02
Reheat
Common
Field wired by installer
Change over is automatic ( non adjustable )
If supply temperature is lower than 24 C: Cooling mode
If supply temperature is higher than 25.5 C: Heating mode
8
R
Open
Close
Common
24 Vac
Open
Close
24 Vac
7
6
5
4
3
Single stage reheat
24 Vac relay or
24 Vac N.C. valve
1 to 2 minutes
Transformer
120 Vac
Actuator
timing
Optional wiring schematic for applications where
transformer is an integral part of reheat system
Transformer ( by others )
Reheat
Common
Open
Close
24 Vac
24 Vac
8
7
6
5
4
3
R
24 Vac
Single stage reheat
24 Vac relay or
24 Vac N.C. valve
Open
Close
Common
Transformer
120 Vac
Actuator
1 to 2 minutes
timing
120 Vac
C1012-02 SEQUENCE
TRUE
HEATING
TRUE
COOLING
100 %
50 %
0%
Device
on
SETPOINT
Device
Temperature increase
SETPOINT
DIAL SETPOINT
CENTERED
IN DEAD BAND
Device
off
DEAD BAND 2.0 F
closed
PROPORT IONNAL BA ND
3.2 F
Device
opened
Viconics Electronics Inc. 9245, Langelier Blvd, St-Leonard, Quebec, Canada H1P 3K9 www.viconics.com
028-0018 LIT-C1012-E01
sales@viconics.com
Loading...