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OPTIONAL ACCESSORIES - ORDER  SEPARATELY
“A” Width 
Models
“B” Width 
Models
“C” Width 
Models
CABINET
Horizontal Suspension Kit - Horizontal only 51W10 51W10 51W10
Return Air Base - Upow only 65W75 50W98 50W99
High Performance Economizer (Commercial only) 10U53 10U53 10U53
CONTROLS
iComfort
®
 E30 Smart Wi-Fi Thermostat 20A65 20A65 20A65
Remote Outdoor Temperature Sensor X2658 X2658 X2658
Furnace Twinning Kit 16W72 16W72 16W72
FILTERS
1
 Air Filter and Rack Kit Horizontal (end) 87L95 87L96 87L97
Size of lter - in. 14 x 25 x 1 18 x 25 x 1 20 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
NIGHT SERVICE KIT
Night Service Kit
17B59 17B59 17B59
VENTING
Vent Adaptor − 6 in. conn. size upow applications only 18M79 18M79 18M79
1
 Cleanable polyurethane, frame-type lter.