Lennox CS7500 User Manual

11
Outdoor Sensor (small commercial split systems
only)
An outdoor temperature sensor (X2658) is required
for balance points and Humiditrol
®
unit operations.
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 ve remote in-
door temperature sensors. Users have three options
to select from under Installer Settings > sensor set-
tings > indoor sensor:
• Option 1 is remote 10k (47W37)
• Option 2 is remote 20k (47W36)
• Option 3 is internal (default)
NOTE: Both external sensors are purchase
separately. Wiring examples for
up to ve sensors are illustrated in
gure 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).
NOTE: All remote sensors use standard non-
shielded thermostat wiring; outdoor
sensors may be wired using two wires of a
multiple wire cable.
NOTE: Outdoor and indoor sensor wire runs
should not exceed 300 feet (100m).
NOTE: The discharge air sensor is for monitoring
and display only. There is no control based
on input from this sensor.

Lennox CS7500 Specifications

General

Brand	Lennox
Model	CS7500
Category	Thermostat
Language	English