Remote Zone Temperature Sensor; Duct Temperature Sensor; Dx Coil Temperature Sensor; Outside-Air Temperature Sensor - Carrier 33CS Installation, Service, And Troubleshooting Instructions

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sensor(s) (field installed) for temperature information. When
the Room Sensor option is set to 3, the TEMP system ther-
mostat averages the temperatures it receives from its local
room temperature sensor and remote room sensor for tem-
perature information.
Remote Room Temperature Sensor
system thermostat can measure zone temperature through a
solid-state temperature sensor located at a remote location
up to 1000 ft from the TEMP system thermostat. The sensor
measures temperature with a range of 30 to 180 F with
degree resolution. The remote room temperature sensor is
connected to the TEMP system thermostat through the wir-
ing connector board. See Fig. 9. Up to 4 remote room sen-
sors can be used. When more than 1 remote room sensor is
used, the temperatures are averaged.
All sensors must be wired in parallel. When adding re-
mote room sensors, a field-supplied 9.2 K ohm resistor must
be added to the connector block for each sensor. See Fig. 9.
REMOTE ROOM TEMPERATURE SENSOR CALIBRA-
TION — To calibrate the remote room temperature sensor,
configure category 5, option 3. The temperature reading of
the sensor will be displayed. Compare the reading to an ac-
curate thermometer. Use the left upper or lower set point
buttons to raise or lower the temperature reading (by tenths
of a degree) until the desired calibrated temperature is shown.
The range of possible temperatures is 30 to 180 F.
Duct Temperature Sensor —
mostat measures supply-air temperature through a solid-
state temperature sensor. The sensor can be located up to
1000 ft from the TEMP system thermostat in the supply air
duct. The sensor measures temperature with a range of 30 to
180 F with 1 ⁄ degree resolution. See Fig. 3 for sensor wir-
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ing. The TEMP system thermostat must be configured to use
the duct temperature sensor.
To configure the Duct Temperature Sensor option, con-
figure category 5, option 4. Set the option to ON if using a
duct temperature sensor. Set the option to OFF, if not using
a duct temperature sensor. The default is OFF.
DUCT TEMPERATURE SENSOR CALIBRATION — To
calibrate the duct (supply air) temperature sensor, configure
category 5, option 5. The temperature reading of the sensor
will be displayed. Use an accurate thermometer to compare
temperature readings. Use the left upper or lower set point
buttons to raise or lower the temperature reading (by tenths
of a degree) until the desired calibrated temperature is shown.
The range of possible temperatures is 30 to 180 F.
DX (Direct Expansion) Coil Temperature Sen-
sor —
The TEMP system thermostat measures DX coil tem-
perature through a solid-state temperature sensor. The sen-
sor can be located up to 1000 ft from the single zone relay
pack. The sensor measures temperature with a range of 30 to
180 F with ⁄ degree resolution.
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10
The temperature sensor is interfaced through the relay pack.
See Fig. 3.
When the DX Coil Temperature Sensor option is set to
ON, the TEMP system thermostat will use information from
the temperature sensor for high and low temperature limits.
The high limits for this sensor are fixed at 105 F for second
stage and 110 F for first stage. The low limits are configured
in category 4, options 5 and 6.
When the DX Coil Temperature Sensor option is set to
OFF, the TEMP system thermostat will not use information
from the temperature sensor for high and low temperature
limits.
To configure the DX Coil Temperature Sensor option, con-
figure category 5, option 6. Use the left set point buttons to
toggle the option ON and OFF. The default value is OFF.
— The TEMP
⁄ -
1
10
The TEMP system ther-
13
DX COIL TEMPERATURE SENSOR CALIBRATION —
To calibrate the DX coil temperature sensor, Configure cat-
egory 5, option 7. Obtain a correct temperature reading with
an accurate thermometer. Use the left set point buttons to
raise or lower the temperature until the desired reading is
shown. The range of possible temperatures is 30 to 180 F.
Outside-Air Temperature Sensor —
tem thermostat measures outside-air temperature through a
solid-state temperature sensor. The sensor can be located up
to 1000 ft from the single zone relay pack. The sensor mea-
sures temperature with a range of −40 to 150 F with
1 ⁄ -degree resolution.
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The temperature sensor is interfaced through the single
zone relay pack. See Fig. 3.
When the Outside-Air Temperature Sensor option is set to
ON, the TEMP system thermostat will measure outside-air
temperature and broadcast the outside-air temperature infor-
mation on the network.
Fig. 8 — Zone Temperature Sensor Location
NOTES:
1. Four (4) is the maximum number of Remote Room Sensors con-
sidered as standard.
2. For each additional sensor (2 or more total) a resistor must be
added. Resistors are wired in parallel between terminals RS- and
W on the thermostat terminal block.
3. Example shown is for 4 Remote Room Sensors.
4. The SBO contacts, when closed, cause the thermostat to operate
in the Occupied mode. When the SBO contacts open, the ther-
mostat returns to the internal schedule.
→ Fig. 9 — Remote Room Sensor Wiring
The TEMP sys-
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