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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.
OPTIONAL ACCESSORIES WIRING
FOR USE WITH ANY ICOMFORT BY LENNOXT SYSTEM
iComfort by Lennoxt
SLP98 & G71MPP FURNACE
(IFC) OR AIR HANDLER (AHC)
®
iComfort Wi-Fi
Thermostat
26L56 Current sensing relay kit.
NOTE: Pass the blower motor L1 wire through the current loop
on the current sensing relay as shown.
HVAC Heat or Cool call, or the fan is in continuous operation, the ventilation controller will open
OA damper to ventilate if the outdoor temperature and indoor humidity are within the limits of the
ventilation controller.
LVCS. Set cycle time to 1 hour; set ventilation time to 60 minutes.
NOTE: Use the iComfortt circulate fan percentage of ON* TIME to control ventilation time.
®
iComfort Wi-Fi
®
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)
LVCS Ventilation Control System
AUXILIARY DEHUMIDIFIER 090 & 135
capacities only (065 not compatible)
iComfort by Lennoxt SL280, EL296 FURNACE
120VAC<-------HUMIDIFIER CONNECTIONS------> 24VAC
iComfort by
iComfort by
Lennoxt
Lennoxt
Furnace or
Outdoor Air
Air Handler
Conditioning
or Heat Pump
(POWER COMPANY INTERRUPTION
SYSTEMS ARE WIRED SAME AS
OVERFLOW SWITCH)
iComfort by Lennoxt
Furnace or Air Handler
HEPA Bypass Filter X2680 HEPA Interlock Kit
iComfort by Lennoxt
Furnace or Air Handler
7-Day Programmable Communicating Thermostat
Page 37
(SEE OAS NOTE ON PAGE 81)
HCWH-01
DEHUMIDIFIER CONTROL
HVAC
EQUIPMENT
iComfort
®
Wi-Fi
thermostat
iComfortt
enabled
outdoor unit
48G96 Relay
GND
IN
iComfort by Lennoxt
2-STAGE FURNACE
DS
CUT
R-DS
W914
R
Standard 1
or 2 stage
AC or HP
unit
Pass indoor
blower motor
common wire
through cur
rent loop.
See HEPA In
terlock Kit for
installation
details
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