Century S244 Installation and Operation Manual
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7.4.1 Shield Construction Rules
See figure Clearances for shield construction to match each letter to a clearance.
- Adhesives used in shield construction must not ignite or lose adhesive qualities at
temperatures likely to be encountered.
- Mounting hardware which extends from the shield surface into combustibles may be
used only at the edges of the shield.
- Mounting hardware must allow full vertical ventilation.
A Minimum clearance between the appliance top and an unshielded combustible ceiling:
1092 mm (43 po.).
B Shield extension above appliance: 500 mm (20 in.).
C Minimum space behind shield: 25 mm (1 in.). In Canada 21 mm (7/8 in).
D Clearance along the bottom of shield: minimum: 25 mm (1 in.) and maximum: 75 mm (3
in.).
E Minimum clearance along the top of shield at ceiling: 75 mm (3 in.).
F Mounting hardware must not be located closer than 200 mm (8 in.) from the vertical
centre line of the appliance.
G Edge clearance for ceiling shields to side and back walls: 75 mm (3 in.).
H Shield extension beyond each side of appliance: 450 mm (18 in.).
