CenCon
18
GAS FIRED HEATING
Commands to heating expansion modules are done via the internal Modbus network. Refer to the appropriate
expansion module section for more information.
COOLING
The CenCon may control simple fluid based cooling devices (chilled water or glycol) from the auxiliary cooling
0-10Vdc output. Expansion module(s) for mechanical cooling are necessary for staged or modulating
mechanical cooling. Refer to the C-XM cooling expansion module section.
The MCW (Modulating Chilled Water) output is a 0-10Vdc signal, with 0V=no cool and 10V=max cool, typically
associated with a chilled water coil. Reversing function must be done at the actuator. A spring return
actuator would be required for applications desiring full open, closed, or bypassed when the equipment is off.
GENERAL TIMING
Mode Change time
1 minute
Damper delay off
20 seconds
Supply low airflow alarm
30 seconds
Shorted Damper End Switch
1 second
Supply air shorted air switch alarm 30 seconds
Low limit bypass
4 m 30 second anti-nuisance
