KMC Controls CTE-5202 Application Guide

Pressure Independent VAV Applications with CSP-4702 22 CTE-5202 Applications Guide, AN0912A Rev. D
~
T T
AI1
AO1 AO2
CTE-5202
Thermostat
~
–
(Phase)
(Neutral)
(To Flow Sensor)
(5K–10K
Ohm Resistor
between AI1
and Common
for Heating
Mode Only)
CSP-4702
Controller-Actuator
24 VAC @ 5 VA
Cooling or Heating
CTE-5202 thermostats can use CSP-4702 electronic
VAV controllers to operate damper boxes in the
pressure-independent VAV system. As shown in
the diagram, a “requested ow” voltage signal
(AO1) is connected to the CSP-4702 to adjust airow
from minimum to maximum ow according to
space demand. Minimum and maximum ow limit
adjustments can be made at the thermostat or at the
controller.
For cooling, select Sequence 1 (from the CTE-5202
SYSTEM menu). See Change Conguration on
page 6.
Heating Air
Heating Max.
Heating Min.
Setpoint
(Colder Room Temperature Warmer)
Cooling Max.
Cooling Min.
Air
Flow
Air
Flow
Setpoint
(Colder Room Temperature Warmer)
AO1
Signal
Cooling Air
AO1
Signal
Select Sequence 1 Select Sequence 1
AND Set Changeover to 55° F
For heating, connect a 5K to 10K ohm resistor
between Common and AI1. Select Sequence 1 and
lower the Changeover to the lowest seing (55° F).
See Change Conguration on page 6. The resistor
simulates a changeover sensor and puts the thermo-
stat in Reverse Acting mode.
NOTE: If the resistor value is too high, the
thermostat will not go into RA mode. If
the resistor value is too low, the thermostat
may go into setback mode.
Select
Sequence 1

KMC Controls CTE-5202 Specifications

General

Brand	KMC Controls
Model	CTE-5202
Category	Thermostat
Language	English