Install Instructions

4
outdoor temperature display on the home screen,
balance points, dew point humidity control, and
with Humiditrol
®
EDA.
In addition to measuring and displaying outdoor
temperature, the outdoor sensor provides dew
point adjustment and control for all models. If used
with this thermostat, the sensor enables optimal
heating equipment operation via programmable
balance points.
NOTE - For proper operation of Humiditrol
®
EDA
applications, the outdoor sensor (X2658) MUST
be installed.
Refer to page 11 for remote sensor installation and
thermostat setting configuration.
Figure 1. Outdoor Sensor
IMPORTANT
In all applications, the ComfortSense
®
Model
7500 thermostat can only be used with all
residential units and approved commercial
split‐system matches, and those which meet
the following installation criteria:
 installation uses 18 GAUGE thermostat
wire or larger,
 thermostat wire run length DOES NOT
EXCEED 300' (91m),
 load from any thermostat connection is 1
AMP or LESS.
WARNING
Improper installation, adjustment, alteration,
service or maintenance can cause property
damage, personal injury or loss of life.
Installation and service must be performed by a
licensed professional HVAC installer (or equiv
alent) or service agency.