Applications Guide
Table Of Contents
- CEP-4000 General Information
- SSE-1000/2000 Flow Sensors
- Thermostats
- VAV Single Duct Cooling/Heating Applications
- VAV Dual Duct Cooling/Heating Applications
- Index
CEP-4000 Series VAV Flow Controller-Actuators 20 Applications Guide
VAV Dual Duct Cooling/Heating Applications
Heating and Cooling VAV
NOTE 1: Connect jumper from “T2” to “R1” to
override cooling minimum to zero upon
call for heating. Leave “R2” connected to
ground.
NOTE 2: Connect jumper from “T1” to “R2” to
override heating minimum to zero upon
call for cooling. Leave “R1” connected to
ground.
Dual duct applications are easily accomplished by
connecting two CEP-4000 series controllers with a
dual setpoint (RA/DA) thermostat as shown below.
In this application, the CEP controllers are mounted
separately on the hot and cold air-duct dampers,
with each utilizing it’s own ow sensor.
The hot deck controller receives its requested ow
signal from “T2”, while the cold deck uses the “T1”
signal from the thermostat. Both units can be set
independently for minimum and maximum ow
seings. In addition, by using the “R” override
terminal on the thermostat cold deck, minimum ow
can be overridden to zero upon a call for heating (or
vice versa).
(Former Ref. # APE-2-4001)