The Ontario Building Code | Cooling Units Cooling Units

(1) Where a cooling unit is combined with a fuel-fired furnace in the same duct system, the cooling unit shall be installed,

(a) in parallel with the heating furnace,

(b) upstream of the furnace, provided the furnaceis designed for such application, or

(c) downstream of the furnace, provided the cooling unit is designed to prevent excessive temperature or pressure in the refrigeration system.

6.2.11. Storage Bins