Application Guide

Pressure Independent VAV Applications with CSP-5001/5002 37 CTE-5202 Applications Guide, AN0912A Rev. H
Cooling with Heating Changeover
Using a duct sensor with the CTE-5202, an automatic
changeover is provided for heating/cooling applica-
tions. The duct sensor will switch the thermostat
between cooling and heating modes based on the
temperature of the duct supply air. A duct tempera-
ture higher than changeover temperature switches
control to heating mode, and a temperature lower
than changeover temperature switches control to
cooling mode.
Select Sequence 1 (from the CTE-5202 SYSTEM
menu). See Change Conguration on page 6 and Hot/
Cold Changeover on page 5. The default changeover
temperature is 77° F, congurable from 55 to 85° F in
the CTE-5202 ADVANCE menu.
NOTE: The CTE-5202 uses the 16 VDC power
from the CSP-5001. If replacing a CTE-5103
thermostat as described in the Cooling and
Heating Changeover section of the CSP-
5001/5002 Applications Guide, the REE-
1005 relay module is no longer needed with
the CTE-5202.
NOTE: If using an existing TTE-2001 duct sensor/
transmier (instead of an STE-140x duct
sensor), connect to Terminals 1 and 2.
NOTE: Minimums can be set at zero air ow, but a
minimum of greater than zero is required
for a quick changeover.
2° F
2° F
2° F
COLD AIR SEQUENCE
AO1 (DA)
Setpoint
AO1 MIN
HOT AIR SEQUENCE
AO1 (RA)
AO1 MAX
AO1 MAX
AO1 MIN
Temp. Increasing
Setpoint
~
T T
AI1
AO1 AO2
CTE-5202
Thermostat
CSP-5001
Controller-Actuator
H
~
16
V
DC
I
N
O
U
T
––
L
24 VAC
(To Flow Sensor)
24 VAC @ 4 VA
~
–
(Phase)
(Neutral)
1
2
3
TTE-2001 or STE-140x Duct Sensor
Select Sequence 1