24 Volt Spring Return Mid-Torque Multi-Blade Dampers

FEATURES:
 

	Designed for zoning warm air, air conditioning systems and fresh air intake;  Spring return open operation only, power close.
	The exterior side mounted linkage ensures quiet operation and a smooth in-duct air flow.
	The blades are mounted with friction minimizing nylon bushings.
	Extruded aluminium frame and blades make for a very strong yet lightweight damper.
	Gasketing included for high integrity seal.
	24 volt mid-torque motor already installed on damper.
	Available in 6" x 8" to 12" x 24"; both side and bottom motor mount configurations available.
	Custom sizes also available on request.
	Damper and motor guaranteed for three years after installation.

          To use the MMB-SR damper selection chart below:

1. For the MMB-SR dampers, consider the motor on the width side.
2. Determine the dimensions, height and width you need, and find the appropriate intersection in the following chart.
   This intersection gives you the item number for ordering Mid-Torque Multi-Blade Spring Return dampers.
3. When ordering Mid-Torque Multi-Blade Spring Return dampers, give item number, description, height and width.
   For example # 51163 is MMB-SR 10" x 20", (with motor on 20" side), and # 51126 is MMB-SR 20" x 10", (with motor on the 10" side).