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Outdoor Sensor (small commercial split systems
only)
An outdoor temperature sensor (X2658) is required
for balance points and Humiditrol
Users has three options to select from (under Install-
er Settings > sensor settings > outdoor sensor):
• Option 1 is using a outdoor temperature sensor
(X2658) (default). Sensor connects to To and Tc
terminals on the thermostat.
• Option 2 is using a discharge air temperature
sensor (19L22). Connects to To and Tc terminals
on thermostat. This sensor is a non-adjustable
duct mount temperature sensor.
NOTE: The outdoor sensors use standard non-
shielded thermostat wiring; it may be wired
using two wires of a multiple wire cable.
Indoor Sensors (remote temperature
room sensor)
This thermostat can support one to five remote in-
door temperature sensors. Users have three options
to select from under Installer Settings > sensor set-
tings > indoor sensor:
unit operations.
®
•
•
•
NOTE: Both
NOTE: All remote sensors use standard non-
NOTE: Outdoor and indoor sensor wire runs
NOTE: The discharge air sensor is for monitoring
11
Option 1 is remote 10k (47W37)
Option 2 is remote 20k (47W36)
Option 3 is internal (default)
external
separately.
Wiring
up to five sensors are illustrated in
figure 6 on page 11. All examples
shown result in Option 2, 20k setting.
For detail installation requirements and
procedure, refer to the instructions provided
with either kit. Thermostat terminals Ti and
Tc are used for indoor sensor(s).
shielded
thermostat
sensors may be wired using two wires of a
multiple wire cable.
should not exceed 300 feet (100m).
and display only. There is no control based
on input from this sensor.
sensors
are
purchase
examples
wiring;
outdoor
for
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