Pressure Independent VAV Applications with CSP-5001/5002
39
CTE-5202 Applications Guide, AN0912A Rev. D
Cooling with Heating Changeover and Hot Water Reheat
See
Cooling with Heating Changeover and Electric
. This application operates the same
except for using a hot water valve instead of electric
heating elements for reheat (a
VEB-43/46 series valve
in place of the REE-5001 relay).
To retrofit a CTE-510x thermostat in an existing
installation with a different valve than a VEB-43/46
series, see the corresponding installation guide for
that valve and actuator.
When there is hot air in the duct, changeover initi-
ates, allowing the heating signal from AO1 to control
~
T
T
AI1
AO
1
AO
2
CTE-5202
Thermostat
CSP-5001
Controller-Actuator
H
~
16
V
DC
I
N
O
U
T
–
–
L
24 VAC
(To Flow Sensor)
24 VAC @ 9 VA
~
–
(Phase)
(Neutral)
1
2
3
TTE-2001 or STE-140x Duct Sensor
MEP-4002
Actuator on
VEB-43/46
Series
Valve
24 V
A
C
Common
Input
Out
2° F
Of Loop
10%
2° F
2° F
AO1 MIN
AO1 MAX
AO1 MAX
AO1 (RA)
HOT AIR SEQUENCE (Morning Warm Up)
AUX
AO1 MIN
COLD AIR SEQUENCE
0 Volts
12 Volts
AO2 Disabled
(0 Volts)
Temp. Increasing
Cooling
Setpoint
Heating
Setpoint
Heating
Setpoint
(Hot Water Reheat)
AO2 (RA)
AO1 (DA)
airflow and AO2 to control the valve. When there
is a call for heat, the thermostat modulates the hot
water valve.
NOTE: If using an existing TTE-2001 duct sensor/
transmitter (instead of an STE-140x duct
sensor), connect to Terminals 1 and 2.
NOTE:
See also the Cooling with Heating
Changeover and Hot Water Reheat section
with a
CTE-5103 in the
.
Select
Sequence 2