Application Guide

Pressure Independent VAV Applications with CSP-4702 24 CTE-5202 Applications Guide, AN0912A Rev. H
~
T T
AI1
AO1 AO2
CTE-5202
Thermostat
~
–
(Phase)
(Neutral)
(To Flow Sensor)
REE-5001 Relay Module
~
–
24 VAC
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 with 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 rst
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 menu). See Change Conguration on
page 6.
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 REE-
5001 Installation
Guide.
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