Cooling With 3-Stage Reheat - KMC Controls CTE-5202 Application Manual

Cooling with 3-Stage Reheat

The application below uses an SSE-1000 series sen-
sor, an REE-4001/5001 relay module, and three 24
VAC contactors for three stages of reheat.
The transformer must supply a minimum of 10 VA
plus the requirements for the reheat contactor coils
(10 VA maximum per stage).
As the temperature drops below setpoint, the first
stage of reheat begins. If the temperature continues
to drop, the second stage begins, and finally the
third stage if necessary.
Select Sequence 2 (from the
CTE-5202 SYSTEM menu).
See Change Configuration
on page 6. (This replaces a
CTE-1004 or a CTE-5002/5012
thermostat.)
If no Auxiliary Flow is desired,
set AO1 AUX to 0 in the
LIMITS menu.)
NOTE: Triac outputs on the
REE-4001/5001 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-4001
Installation Guide
and/or REE-5001
Installation Guide.
9.5 V
6.5 V
Reheat
3.5 V
Stages
#3
#2
12 Volts
#1
AUX
10%
Of Loop
2° F
Heating
Setpoint
Pressure Independent VAV Applications with CEP/CSP-4000 Series
24 VAC @ 40 VA
–
(Neutral)
(Phase) ~
COLD AIR SEQUENCE
AO2 (RA)
AO1 (DA)
2° F
Cooling
Temp. Increasing
Setpoint
Select Sequence 2
CEP-4xxx
Controller-Actuator
8
9
10
11
12
13
14
SSE-1001/1002
Flow Sensor
24 VAC Contactors
1
2
3
(10 VA Max. per Stage)
0 Volts
AO1 MAX
AO1 MIN
47
CTE-5202
Thermostat
7
6
5
4
3
2
1
1
2
3
REE-4001/5001
Relay Module
CTE-5202 Applications Guide, AN0912A Rev. D