Application Guide

Pressure Independent VAV Applications with CEP/CSP-4000 Series 48 CTE-5202 Applications Guide, AN0912A Rev. H
Cooling with Heating Changeover
~
T T
AI1
AO1 AO2
CTE-5202
Thermostat
24 VAC @ 10 VA
~
–
(Phase)
(Neutral)
7
6
5
4
3
2
1
8
9
10
11
12
13
14
CEP-4xxx
Controller-Actuator
SSE-2001/2002
Flow Sensor
1
2
3
Y
X
Select Sequence 1
Using a duct sensor with the CTE-5202, an automatic
changeover is provided for cooling/heating 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: If replacing a CTE-1103 thermostat as
described in the Cooling Heating Change-
over section of the CEP-4000 Series Ap-
plications Guide or a CTE-5001/5011 as
described in the CTE-5001/5011 Installation
Guide, the REE-1005 or REE-1014 relay
module is not needed with the CTE-5202.
NOTE: Minimums can be set at zero air ow, but a
minimum of greater than zero is required
for a quick changeover.
NOTE: For an SSE-2001/2002 ow sensor, connect
the X and Y terminals to the CTE-5202’s AI1
and Common terminals.
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