Comfort Stat CDT901 - Manual (Page 98)

CDT900 Series Touchscreen Programmable Thermostata
Remote Indoor Temperature
Sensor
Operation
When installed with Thermostat Installer
Setup Number 0340 set to 3, the remote
inside temperature is displayed on the
Thermostat Home Screen as Inside
Temperature. The thermostat internal
temperature sensor is not used. See Fig.
36.
Fig. 36. Inside temperature reading on
TCD900 Series Thermostat.
The Wall Mount Temperature Sensor converts
room temperature to a resistance that the
thermostat can interpret.
The sensor has a negative temperature
coefficient (NTC), which means that resistance
decreases as the temperature increases.
The sensor can be used to provide one remote
sensor input (see Fig. 28) or as a temperature
averaging network with multiple Sensors
connected, as shown in Fig. 29.
Checkout
For best results, allow Wall Mount Temperature
Sensor to absorb the air moving through the
room for a minimum of twenty minutes before
taking a resistance measurement.
With an accurate thermometer (±1°F [0.5°C])
measure the temperature at the sensor location
allowing time for the thermometer to stabilize
before reading.
Calibration
The Wall Mount Temperature Sensor is
calibrated at the factory and cannot be
recalibrated in the field.
97
AUTO
Room SCHED
HOLD
CLOCK
SCREEN
SYSTEM
HEAT
FAN
Set To
TUE
AM
Heat On
Running As SCHED
MORE
AM