Auto And Override (To Fully Closed); Other Applications - KMC Controls CTE-5202 Application Manual

Auto and Override (to Fully Closed)

Adding a Normally Closed SPST relay or switch
enables overriding the air flow to fully closed.
(Otherwise the example below is the same as the
configuration in Cooling or Heating on page
The default setting is Auto. When the NC relay
energizes, the thermostat signal is removed from the
actuator's input. The resulting 0 VDC "signal" on
the actuator's input overrides the actuator to fully
closed.
24 VAC @ 5 VA
(Neutral)
(Phase)

Other Applications

See the corresponding application in
Independent VAV Applications with CSP-5001/5002
on page 32 and make the corresponding wiring adjust-
ments for power to the MEP-4xx2 and CTE-5202.
The MEP-4xx2's default direction is the same as the
CSP-5001.
Pressure Dependent VAV Applications with MEP-4002
17).
MEP-4002
Actuator
–
~
Pressure
NOTE: An override to fully open does not apply
to the MEP-4xx2 in a way that is analogous
to the CSP-5001 as shown in
Override (to Fully Closed or Fully Open)
on page
CTE-5202
Thermostat
NC SPST
Relay
(Override
to Fully
Closed)
18
Auto and
34.
(5K–10K
Ohm Resistor
between AI1
and Common
for Heating
Mode Only)
CTE-5202 Applications Guide, AN0912A Rev. D