Osburn OB01520 - Manual (Page 36)

Soho 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:
1041 mm (41 in.)
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.)