Application Guide
CSP-5001/5002 VAV Flow Controller-Actuators 17 Applications Guide, Rev. B
Cooling with Heating Changeover and Hot Water Reheat
This application operates the same as VAV Cooling
with Heating Changeover and Electric Reheat except
for using a hot water valve instead of electric heating
elements for reheat, eliminating the REE-5001 relay.
The valve used in this example is the (discontinued)
VEP-15xx0195 2-way valve, which uses a 2–10 VDC
signal for control or the 0–10 VDC VEZ-430xxA.
When there is hot air in the duct the REE-1005
initiates the changeover, allowing the heating signal
from the thermostat to control airow. When there
is a call for heat, the thermostat modulates the HW
valve.
NOTE: REE-1005 terminal “A” can be used to
trigger an auxiliary ow setpoint when
used with a CTE-5104 or REE-1012. This
terminal can also be used to daisy chain
more than one REE-1005 together by wiring
Terminal “A” to Terminal “Y” on the next
relay.
(Former Ref. # APE-1-5014B)