KMC Controls CSP-5002 - Manual (Page 9)

CSP-5001/5002 VAV Flow Controller-Actuators 9 Applications Guide, Rev. B
Changing a CTE-5100 Thermostat to a Remote Sensor
A thermostat controller with an external temperature
sensor provides a means to remotely locate the tem-
perature sensor in the supply or return air duct or in
an area where remote adjustment of the setpoint is
desired.
The CTE-5100 series thermostat can be easily
modified to accomplish this application. Since the
CTE-5100 series thermostats have an averaging
temperature input, a thermistor can be wired to
this input and the thermostat’s thermistor can be
removed. The thermistor is clearly visible once
the scale plate is removed, simply clip both leads
underneath the thermistor to remove it. The remote
thermistor is then wired to terminals “+12 V” and
to “A” (as shown in chart below).
TTE series remote temperature sensor/transmitters
include a three wire sensor with “+”, “A”, and “–”
connections. When the TTE series are used as remote
sensors for the CTE-5100 series, only the “+” and
“A” connections are used. These two connections
are to the thermistor (resistance) only (not a voltage
output). The chart below illustrates the various TTE
models and the appropriate terminal designations.
CTE-5100 Series Connections for Remote Sensor
Model Type
“+12 V”
Connection
“A”
Connection
TTE-1001 Room Sensor Terminal + Terminal A
TTE-2001 Duct Sensor Terminal 1 Terminal 2
TTE-5001/5011 Room Sensor Terminal B Terminal A
CTE – 5101 DA Thermostat
V1 T3 R1T1 +
12
V A
CTE – 5102 RA Thermostat
V2 T4 R2 T2 +
12
V A
CTE – 5103 DA/RA Thermostat
V1 T3 R1T1 +
12
V A V2 T4 R2 T2
CTE – 5105 DA/RA Thermostat
V1 T3 R1T1 +
12
V A V2 T4 R2 T2
CTE – 5104 DA/RA Thermostat
V1 T3 R1T1 +
12
V A R2 T2
Jumper
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Jumper
Jumper
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