Lennox iComfort SL18XC-01 Installer Setup Manual page 42

Optional Accessories Wiring
FOR USE WITH ANY ICOMFORT BY LENNOX™ SYSTEM
iComfort by Lennoxt
SLP98 & G71MPP FURNACE
(IFC) OR AIR HANDLER (AHC)
DISCHARGE AIR SEN­
SOR (REQUIRED FOR
EVEN HEAT) (SEE DAS
NOTE ON PAGE 81)
®
iComfort Wi‐Fi
THERMOSTAT
RSBus
Maximum total
length of all connec­
tions on the RSBus
is limited to 1500ft.
Wire gauge of
RSBus wire is 18.
NOTE: 24V UV LIGHT
APPLICATIONS
In an iComfort by Lennoxt
system, neither furnace nor
air handler transformer will
have adequate VA to power
24V UV light applications.
An additional transformer for
UV light applications is re­
quired. UV light wiring con­
nections are independent of
HVAC system operation; see
UV light installation instruc­
tions.
507341-02
®
NOTE: iComfort Wi‐Fi THERMOSTAT SENSES HUMIDITY & CONTROLS 24V "H" OUTPUT (& 120V "H" OUTPUT)
TO CYCLE HUMIDIFIER BASED ON DEMAND. NO OTHER CONTROL OR HUMIDISTAT REQUIRED.
OPTIONAL OUTDOOR AIR SENSOR FOR USE WITH HUMIDIFIER (IF NOT ALREADY IN THE SYSTEM FOR OTHER
FUNCTIONS. BUILT INTO ALL iComfort by Lennoxt OUTDOOR UNITS).
For SL290 & EL296, see HUMIDIFIER diagram
below (bottom right)
42
(SEE OAS NOTE ON PAGE 81)
HVAC
EQUIPMENT
AUXILIARY DEHUMIDIFIER 090 & 135
capacities only (065 not compatible)
iComfort by Lennoxt SL280, EL296 FURNACE
120VAC<-------HUMIDIFIER CONNECTIONS------> 24VAC
HCWH-01
DEHUMIDIFIER CONTROL
iComfort
®
Wi‐Fi
thermostat
iComfortt
enabled
outdoor unit
48G96 Relay
GND
IN