Pressure Independent VAV Applications with CSP-4702
24
CTE-5202 Applications Guide, AN0912A Rev. D
~
T
T
AI1
AO
1
AO
2
CTE-5202
Thermostat
~
–
(Phase)
(Neutral)
(To Flow Sensor)
REE-5001 Relay Module
~
–
24 V
AC
3
2
1
Stages
3-Stage Reheat
T
24 VAC Contactors
(10 VA Max. per Stage)
2
1
3
Load
CSP-4702
Controller-Actuator
24 VAC @ 35 VA
Cooling and 3-Stage Reheat
This application uses a CSP-4702 along with an
REE-5001 relay module and three 24 VAC contactors
for three stages of reheat.
As the temperature drops below setpoint, the first
stage of reheat begins. As the temperature continues
to drop, the second stage and later the third stage
begin as needed.
Select Sequence
2
(from the CTE-5202
SYSTEM
menu), with or without Auxiliary Flow (
AO1 AUX
in
LIMITS
.
NOTE: Triac outputs on the REE-5001 are for 24
VAC loads only. The phase side of the
transformer connects to the “common” side
of the load (contactors).
NOTE: See also the
.
2° F
Of Loop
10%
2° F
AO1 MAX
AUX
AO1 MIN
COLD AIR SEQUENCE
0 Volts
12 Volts
Temp. Increasing
Cooling
Setpoint
Heating
Setpoint
9.5 V
3.5 V
#3
#1
6.5 V
#2
Reheat
Stages
AO2 (RA)
AO1 (DA)
Select Sequence 2,
with or without
Auxiliary Flow
