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506920−01 09/12
Page 62
Optional Accessories Wiring
for use with any icomfort by Lennoxt system
icomfort Wi-Fit
Thermostat
RSBus
LVCS Ventilation Control System
icomfort by Lennoxt
Furnace or Air Handler
HEPA Bypass Filter X2680 HEPA Interlock Kit
Pass indoor
blower motor
common wire
through cur-
rent loop.
See HEPA In-
terlock Kit for
installation
details
icomfort by
Lennoxt
Outdoor Air
Conditioning
or Heat Pump
Standard 1
or 2 stage
AC or HP
unit
icomfort by
Lennoxt
Furnace or
Air Handler
icomfort by Lennoxt
Furnace or Air Handler
(POWER COMPANY INTERRUPTION
SYSTEMS ARE WIRED SAME AS
OVERFLOW SWITCH)
icomfort by Lennoxt
2−STAGE FURNACE
CUT
R−DS
W914
DS
R
26L56 Currrent 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 by Lennoxt
SLP98 & G71MPP FURNACE
(IFC) OR AIR HANDLER (AHC)