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parallel to longest dimension
INSTALLATION INSTRUCTIONS
Designed to handle high volumes of air with horizontal flow
1550 Series Submittal
see 2700 series)
Parallel Volume Damper Low Leak 3000PLL-44X14 Commercial parallel to longest dimensionh3. Standard Features * 16 gauge galvanized channel frame * Parallel blades are cee stiffened 16 gauge galvanized for strength and stability * Blades pivot on non metallic celcon bushings * 1 2" square zinc plated steel pivot pins * 1 2" square zinc plated steel adjustable operating shaft extending up to 4" beyond the air control frame * Single blades on dampers with a height of 12" or less * Mill finish h3. Options * 3000 PLL Low Leak Air Control
