KMC Controls CSP-5002 - Manual (Page 20)

CSP-5001/5002 VAV Flow Controller-Actuators 20 Applications Guide, Rev. B
Fan Induction with 2-Stage Electric Heat
NOTE: The fan has an adjustable
start point between 3 and 8
volts.
The CTE-5101 electronic thermostat
is a single-setpoint thermostat for
cooling (DA). In this application, the
thermostat is used with the REE-
5002 relay module, a fan, and two
coils (for two stages of reheat). The
REE-5002 was designed primarily
for use with VAV fan-powered
induction boxes.
If the thermostat drops below
setpoint, the relay senses the
decrease in voltage and starts the
fan. As the temperature continues to
drop, the first stage of reheat begins,
and the second stage of reheat
follows if the thermostat is still not
satisfied. The process reverses as the
room temperature begins to rise.
NOTE: The “X” Terminal is used
for measuring fan trip
voltage only.
CSP–5001
Controller-Actuator
H
~
16
V
DC
I
N
O
U
T – –
L
24 VAC
REE–5002 Relay Module
~
–
24
V
A
C
Fan
1
2
Stages
X
T
Load
24 VAC @ 34 VA
~
–
24 VAC Contactors
(10 VA Max. per Stage)
(To Flow Sensor)
–
12
V V1 T3 R1 T1 A +
CTE–5101 Thermostat
Jumper
*Fan
( Colder Room Temperature Warmer )
T3 Signal
Cooling
Max.
Cooling Min.
T1 Signal
Setpoint
5 V
1 V
3V
#2 #1
10 V
8 V
(Former Ref. # APE-3-5001)