Carrier 58PAV - Dedicated Vent (Typical); Dedicated Type B-1 Vent for 58 PAV035-EC and GC Maximum Horizontal Length Allowed (Ft); Dedicated Type B-1 Vent for 58 PAV055-EC and GC Maximum Horizontal Length Allowed (Ft); Dedicated Type B-1 Vent for 58 PAV075-GC and JC Maximum Horizontal Length Allowed (Ft)