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Spring Air Systems Water Wash Ventilator Maintenance Manual 11/01
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The arrangement “T” has three advantages:
1.
The damper is spring loaded to provide a positive closure and seal when closed.
2.
The thermostat set at 350F (177C) responds quickly to activate the spring in the event of a fire.
3.
The fire damper can be periodically tested by putting a jumper across terminals 1 & 2 in the water wash panel or
heating the thermostat to 350F (177C). The damper will simulate a fire condition and then must be manually reset.
After the fire has been completely extinguished the fire damper must be reset. To reset the fire damper rotate the
stainless steel handle located on the side of the Fire Damper Solenoid Enclosure 90 degrees clockwise. When access is
restricted on model B and DB ventilators an optional factory installed access door can be located in the roof of the
ventilator in the vicinity of the duct collar.
The fire damper can be tested periodically (SPRING AIR SYSTEMS recommends testing the fire damper every six
months). Putting a jumper across terminals 1 & 2 located in the water wash control panel tests the damper.
NOTES:
1.
AT THE FIRST SIGN OF A KITCHEN FIRE NOTIFY THE FIRE DEPARTMENT IMMEDIATELY.
2.
THE HOOD AND DAMPER ASSEMBLY IS NOT A SUBSTITUTE FOR THE SURFACE FIRE SUPPRESSION
SYSTEM. (WET CHEMICAL, SPRINKLER, ETC.) A SURFACE FIRE PROTECTION MUST BE INSTALLED IN
ACCORDANCE WITH APPLICABLE CODES.
Arrangement “F”: Fusible Link Activated, Spring Loaded.
The arrangement “F” hood and damper assembly consists of a fusible link fire damper and a damper end switch
interlocked electrically to the water wash control panel with two wires.
Arrangement “F” Fire Damper
Figure 23
In addition the surface fire suppression system connects to terminals 5 & 1 the Arrangement “F” fire damper ENS
enclosure is connected to terminals 1, & 2. In the event of a fire the fusible link melts closing the fire damper against the
force of a 40-lb. spring. When the fire damper shuts a normally open-end switch closes sending an electrical signal to
the water wash control panel through terminal 2. Within the water wash control panel the fire relay R5 is energized
activating the hood and damper assembly.
1.
The exhaust fan is shut off.
2.
The hot water solenoid valve is energized releasing water into the interior of the grease extractor.
After the fire has been completely extinguished the fire damper must be reset. To reset the fire damper the fusible link
must be replaced. Open the access door on the front of the grease extractor. Pull the fire damper open and replace the
fusible link to secure the fire damper in place. The fusible link should be examined periodically in accordance with the
NFPA-96 code. (SPRING AIR SYSTEMS recommends inspection every six months.)
Arrangement “F” Fire Damper ENS Enclosure
Figure 24
