Wiring Diagrams - Lennox icomfort Setup Manual

DAS NOTE − The discharge air sensor
is intended to be mounted downstream
of the heat exchanger and air condi-
tioning coil. It must be placed in free
airflow, where other accessories (such
as humidifiers, UV lights, etc.) will not
interfere with its accuracy. Wiring dis-
tance between the IFC or AHC and the
discharge air sensor should not exceed
10ft when wired with 18−gauge thermo-
stat wire.
OAS NOTE − Wiring distance between
the IFC or AHC and the outdoor tem-
perature sensor should not exceed
200ft when wired with 18−gauge ther-
mostat wire.
icomfortt Thermostat
icomfortt Indoor Furnace or Air Handler
icomfortt Outdoor Condensing Unit or Heat Pump
506052−01 11/09
Wiring Diagrams − Communicating Systems
FURNACE (IFC) OR AIR HANDLER (AHC)
OPTIONAL DIS-
CHARGE AIR SEN-
SOR (SEE DAS
NOTE)
OPTIONAL OUT-
DOOR AIR SENSOR
(SEE OAS NOTE)
icomfortt
THERMOSTAT
RSBus
Page 36
icomfortt
icomfortt
OUTDOOR AIR
CONDITIONING OR
HEAT PUMP UNIT
RSBus
Maximum total length of all connections
on the RSBus is limited to 1500ft.
Wire gauge of RSBus wire is 18.