Outdoor Temperature Sensor - EWC Controls EWT-3102 User Manual

Outdoor Temperature Sensor

Operation
When installed with Thermostat Installer Setup
Number 0340 set to 1 or 2, the outside
temperature can be displayed on the
thermostat. See Fig. 34.
TUE
Room
Running As SCHED
Set To
SYSTEM
HEAT
MORE SCHED HOLD CLOCK
Fig. 34. Outside temperature reading on
EWT-3102/EWT-3103 Thermostat.
EWT-3102 / EWT-3103 Touchscreen Programmable Thermostat
The Outdoor Sensor converts outdoor
ambient 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.
Checkout
AM
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.
Outside
Calibration
FAN The Outdoor Sensor is calibrated at the
factory and cannot be recalibrated in the
AUTO
field.
SCREEN
96