MQVL48 / MQVLB48
A Platform Base has air opening requirements that must be met.
Front Must Have
Minimum 84 Square
Inches Free Air
Opening
TOP VIEW
EXAMPLE 1: FRONT VIEW
EXAMPLE 2: FRONT VIEW
84 Square Inches Free Air Opening
Framing – Platform Base
480 Square Inches
Free Air Opening
84 Square Inches Free Air Opening
EXAMPLE: 2" X 42" = 84 Square Inches
EXAMPLE: 1-1/2" X 56" = 84 Square Inches
Top of Platform Must Have
Minimum 480 Square
Inches Free Air Opening
⚠
TOP OF PLATFORM
WITH A SHEET OF
PLYWOOD.
DO NOT COVER
SIDE VIEW
480 Sq. In.
SIDE VIEW
480 Sq. In.
Opening must not be
blocked by floor covering.
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