Wiring Diagrams - Lennox iComfort Wi-Fi Installer's System Setup Manual

Wiring Diagrams

iComfort™ Communicating System Wiring
DAS NOTE - The discharge air sensor is
intended to be mounted downstream of the
furnace heat exchanger and air conditioning
coil. It must be placed in free airflow, where
other accessories (such as humidifiers, UV
lights, etc.) will not interfere with its accur­
acy. Wiring distance between the IFC or
AHC and the discharge air sensor should
not exceed 10ft when wired with 18-gauge
thermostat wire.
OAS NOTE - Wiring distance between the
IFC or AHC and the outdoor temperature
sensor should not exceed 200ft when wired
with 18-gauge thermostat wire.
®
iComfort Wi‐Fi Thermostat
iComfort by Lennoxt Indoor Furnace or Air Handler
iComfort by Lennoxt Outdoor Condensing Unit or Heat Pump
FURNACE (IFC) OR AIR HANDLER (AHC)
OPTIONAL DIS­
CHARGE AIR
SENSOR (SEE
DAS NOTE)
OPTIONAL OUT­
DOOR AIR SENSOR
(SEE OAS NOTE)
®
iComfort Wi‐Fi
THERMOSTAT
RSBus
37
iComfort by Lennoxt
RSBus
Maximum total length of all connections on
the RSBus is limited to 1500ft.
Wire gauge of RSBus wire is 18.
®
iComfort Wi‐Fi 7-Day Programmable Communicating Thermostat
iComfort by Lennoxt
OUTDOOR AIR CON­
DITIONING OR HEAT
PUMP UNIT