Lennox S40 - Creating Your Home Profile; Home Information Entry; Customizing the S40 Smart Thermostat; Personalization Process Guide

8
DATS
(Required)
OATS (Optional)
In-Zone
Thermostats
PWR
D+
D-
C
PWR
D+
D-
C
PWR
D+
D-
C
See Smart Zoning Installation instruction for damper connection information.
INDOOR
PWR
D+
D-
C
Lennox
Communicating
Indoor Unit
TS
TS
T
T
A
A
T
T
DATS
Lennox
Communicating
Outdoor
Unit
If TSTAT terminal is present,
DO NOT use.
Up to three in-zone
thermostats are
supported
Use terminal designated “Indoor” on damper
control module to connect to the indoor unit.
Damper
Control Module
Thermostat
(See Lennox
Communication
Wiring Diagram)
(See Lennox
Communication
Wiring Diagram)
(See Lennox
Communication
Wiring Diagram)
Figure 8. Lennox S40, Lennox Communicating Indoor and Outdoor Units, Smart Zoning System (Damper Control Module) and Zone Sensors