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OPTIONAL ACCESSORIES - ORDER SEPARATELY
NOTE - FURNACES CANNOT BE TWINNED!
“B” Width 
Models
“C” Width 
Models
“D” Width 
Models
CABINET ACCESSORIES
Horizontal Suspension Kit - Horizontal only 51W10 51W10 51W10
Return Air Base - Upow only 50W98 50W99 51W00
High Performance Economizer (Commercial Only) 10U53 10U53 10U53
CONDENSATE DRAIN KITS
Condensate Drain Heat Cable 6 ft.  26K68 26K68 26K68
24 ft. 26K69 26K69 26K69
Crawl Space Vent Drain Kit US 51W18 51W18 51W18
Canada 15Z70 15Z70 15Z70
CONTROLS
iComfort
®
 S30 Ultra-Smart Wi-Fi Thermostat 19V30 19V30 19V30
1
 Discharge Air Temperature Sensor 88K38 88K38 88K38
iComfort
®
 E30 Wi-Fi Smart Thermostat 20A65 20A65 20A65
2
 Remote Outdoor Air Temperature Sensor X2658 X2658 X2658
Night Service Kit 15X35 15X35 15X35
FILTER KITS
3
  Air Filter and 
Rack Kit
Horizontal (end) 87L96 87L97 87L98 
Size of lter - in.  18 x 25 x 1 20 x 25 x 1 25 x 25 x 1
Side Return Single 44J22 44J22 44J22
Ten Pack 66K63 66K63 66K63
Size of lter - in. 16 x 25 x 1 16 x 25 x 1 16 x 25 x 1