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OPTIONAL ACCESSORIES - ORDER SEPARATELY
NOTE - FURNACES CANNOT BE TWINNED!
“B” Width Models “C” Width Models
CABINET ACCESSORIES
Downow Combustible Flooring Base 11M60 11M61
High Performance Economizer (Commercial Only) 10U53 10U53
CONDENSATE DRAIN KITS
Condensate Drain Heat Cable 6 ft. 26K68 26K68
24 ft. 26K69 26K69
Crawl Space Vent Drain Kit US 51W18 51W18
Canada 15Z70 15Z70
CONTROLS
S40 Smart Wi-Fi Thermostat 22V24 22V24
1
Discharge Air Temperature Sensor 88K38 88K38
E30 Smart Wi-Fi Thermostat 20A65 20A65
2
Remote Outdoor Temperature Sensor X2658 X2658
FILTERS
3
Downow Filter Cabinet 51W07 51W08
No. and Size of lter - in. (2) 16 x 20 x 1 (2) 16 x 20 x 1
VENTING
Flue Coupling 2 in. 17H92 17H92
⁴ Left Side Vent Kit 2 or 3 in. 87W73 87W73
1
Optional for service diagnostics.
2
Remote Outdoor Temperature Sensor is used with conventional (non-Lennox
®
Communicating) outdoor units (sensor is furnished with Lennox
®
Communicating
outdoor units). Allows the thermostat to display outdoor temperature. Required in dual-fuel and EDA applications.
3
Cleanable polyurethane, frame-type lter.
4
NOTE - The curved exhaust pipe furnished with the Left Side Vent Kit counts as one additional 2 in. diameter 90° elbow. When using 3 in. diameter pipe, the furnished
curved exhaust pipe and eld provided ttings to transition from 2 in. to 3 in. count as 20 feet of equivalent pipe on all units.
NOTE - Termination Kits (44W92, 44W93, 30G28, 51W12, 81J20) and Crawl Space Vent Drain Kit (15Z70) are certied to ULC S636 standard for use in Canada only.
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