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Spring Air Systems
REV LOW
Engineering Manual Revision 2.0 -021902
8
gyrates through the secondary chamber. After leaving the secondary chamber the exhaust air
enters the ventilator fire damper and duct collar and discharges into the ductwork.
TYPE “H” Core Extractors - Water Wash
The SPRING AIR SYSTEMS type “H” core extractor is a high efficiency water wash grease
extractor.
The contaminated air enters the extractor slot A and flows through
the transition zone to the VORTEX CHAMBER B. The exhaust air
accelerates through a complete 270-degree turn around the
VORTEX BAFFLE C. Centrifugal force causes the grease, dirt and
lint particles to deposit on the PRIMARY VARIABLE FLOW
BAFFLE G and the VORTEX BAFFLE C. The
VARIFLOW
BAFFLE
D adjustable for varying exhaust flows along the length of the
extractor. The sloping VORTEX BAFFLE C drains the collected
liquid grease to the end of the ventilator and into the grease trough.
The exhaust air continues into the secondary extraction chamber,
which contains an additional baffle, F. Residual grease is
deposited on the secondary baffle as the exhaust air gyrates
through the secondary chamber. After leaving the secondary
chamber the exhaust air enters the ventilator fire damper and duct
collar and discharges into the exhaust ductwork.
Type “H” Extractor
Figure 8
Hood and Damper Assemblies
THE SURFACE FIRE SUPPRESSION SYSTEM is always installed in commercial kitchens.
They are required by national and local code. The surface fire suppression system is a wet
chemical or a water sprinkler system. In the event of a fire on the cooking surface electric
thermostat or fusible links activates the system. These systems must be UL/ULC listed.
NOTE: The exhaust fan should remain on after a surface fire suppression system has activated.
A properly designed hood and damper assembly is UL/ULC listed to impede the spread of fire
from the kitchen hood into the exhaust duct. The UL/ULC listed hood and damper assembly is
an important part of the kitchen ventilation system.
SPRING AIR SYSTEMS has three (3) arrangements of hood and damper assemblies available,
arrangement “T”, “F”, and “D”, thermostatic or fusible link activated systems respectively.
Arrangement “T” : Thermostat Activated
The arrangement “T” hood and fire damper assembly consists of a thermostatically activated
spring loaded fire damper electrically connected to the water wash control panel by three wires.