KMC Controls CTE-5202

Pressure Independent VAV Applications with CSP-4702 23 CTE-5202 Applications Guide, AN0912A Rev. D
Auto and Override (to Fully Open)
Adding a SPDT relay or switch enables overriding
the air ow to fully open. (Otherwise the example
below is the same as the cooling conguration in
Cooling or Heating on page 22.)
The SPDT relay selects one of the two modes (Auto/
Open). In the relay position shown below (Open),
the controller will override the ow seing. (Jump-
ing “2-10 IN” and “16 VDC OUT” drives the CSP-
4702 fully open.)
NOTE: If a maximum limit was set in the CSP-4702
controller, the damper will only open to
the maximum limit seing. See also the
Operation Test section of the CSP-4702
Installation Guide.
When the relay switches to Auto, the thermostat will
then control the VAV box based on demand.
~
T T
AI1
AO1 AO2
CTE-5202
Thermostat
~
–
(Phase)
(Neutral)
(To Flow Sensor)
SPDT
Relay
CSP-4702
Controller-Actuator
24 VAC @ 5 VA
Open
Auto