Manual fire damper air volume damper

HVAC systems manual fire damper air volume damper introduction

1. This series of air volume dampers are installed in the HVAC systems or air duct system.

2. Round, square and rectangular.

3. Adjusted by the handle and worm, each air volume damper blade long shaft end with a crank, link each crank linkage with the regulating handle operating handle, the blade can synchronize open or close.

4. Open and close the damper manually

5. Adjusting air flow volume at will between 0°- 90°

Attention:

1. Check air volume damper, fire damper body not deformation before installation, actuator manual action can flexible open and close, equipped with fusible piece to see the fusible piece is complete.

2. The air volume damper body and direction position should be correct when installation, the valve position when installing does not match, please don't use blunt knock each air volume damper, fire damper parts, should repair the installation location.

3.  After installation of air volume damper, clean the check should be made for the body, the body can’t have impurities. 

4. When the valve plug, should check whether the actuator power supply voltage level is reached DC24V. According to the electrical connection that confirms to rear can electricity debugging.