ULC-S645-93 (R2021)

1. Scope 1.1 These ventilators are for use with exhaust systems serving restaurant type cooking equipment such as ranges, broilers, deep fat fryers, grilles, etc. They are complete units which may including a fan, motor, enclosing housing, roof penetration and duct connection flange. 1.2 They are intended for use in exhaust systems incorporating exhaust hoods. 1.3 They are designed to safely remove residual exhaust vapours and airborne particles from the cooking area and discharge these exhaust products at a minimum height of 1000 mm above roof level.