FDB2 FIRE AND GAS DAMPER - Halton
FDB2 FIRE AND GAS DAMPER - Halton
FDB2 FIRE AND GAS DAMPER - Halton
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<strong>FDB2</strong> Installation, operation and<br />
maintenance instructions<br />
Version: 10<br />
Date: 19.12.2012<br />
4. INSTRUCTIONS FOR SPRING OPERATED <strong>DAMPER</strong><br />
A) Under normal operating conditions the fire damper blade is held in the “open” position by the arm (pos 1)<br />
and connecting rod of fusible link (pos 2).<br />
The internal fusible link includes a fusible link (pos 2), which in turn holds a spring return connecting rod. This<br />
connecting rod holds the spring (pos 4) and fire damper in open position.<br />
B) The fusible link is temperature sensitive and when the air passing through and/or the air surround the fire<br />
damper reaches a temperature of approximately 74 º°C, the link will shatter.<br />
When the link smelts (pos 2) the connecting-rod is released and the spring (pos 4) will close the fire damper.<br />
°C) If you want close the damper manually pull the knob (pos 3) release and the external spring (pos 4) will<br />
close the fire damper.<br />
To reset the damper to close position pull the knob (pos 3) and rotate the arm counter-clockwise (pos 1) over<br />
the clamp up to the position of the connecting rod. Then set the shaft of the knob (pos 3) into the end section of<br />
connecting rod.<br />
WARNING:<br />
DURING RELEASE <strong>AND</strong> RESET OPERATION BE SURE THAT THERE IS NO RISK TO HURT<br />
YOURSELF!!!<br />
Main sales office & factory<br />
Tel. +358 (0)2079 2200<br />
Fax. +358 (0)2079 22060<br />
http://www.haltonmarine.com<br />
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