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 18 Applications Guide
Day/Night with Fan Box Reheat
In this example, the Day mode has “T1” sending a
signal to the controller, while the Night mode keeps
the controller at minimum ow or 0 volts (optionally,
T2 could have been used). A second set of contacts on
the relay also switches signals to the reheat module
between T3 (Day) and T4 (Night) accordingly. For
details on the reheat sequences, see the Fan Box with
Reheat section.
The CTE-1105 (DA) and CTE-1108 (RA) electronic
thermostats are dual-setpoint “Day-Night” units,
typically used for temperature setback/setup
applications. This application shows a separate
relay (oen energized by a time clock or switch)
used to toggle the “requested ow” signal from the
thermostat to the controller according to the mode of
operation.
(Former Ref. # APE-3-4003)