Specifications

Equipment Description
676-110306 1-7
1.3.8 Cabinet Fans
Cabinet Fan. The furnace is equipped with one (1) 10-inch diameter fan mounted on the underside of the top of
the furnace cabinet. This fan exhausts heat emitted from the outside of the furnace chamber and cooling tunnel
into the room or customer installed exhaust system.
Enclosure Fan. The control enclosure is cooled by fan(s) mounted under the enclosure. These fans pull cool air
from the room into the enclosure through vents in the enclosure base. Room air flows into opening in the back
panel and across the heat sinks where the SCR’s are mounted and exhausts out the top of the rear panel door.
Cooling System Fans. The CACT cooling tunnel is cooled by fans mounted outside the top and bottom of the
tunnel. Cabinet air is forced over the cooling tunnel to remove heat transferred from the tunnel interior. This air
is evacuated via the cabinet fan.
1.3.9 Transport Belt
The LA-306 standard conveyor belt for high temperature applications is a close weave Nichrome-V belt
manufactured from high temperature wire comprised of 80% nickel and 20% chromium. This belt offers fast
heat-up times, more uniform operating temperatures and excellent mechanical stability. This belt exhibits
minimum shrinkage, growth, sag or distortion in use.
1.3.10 Motor
The transport drive motor assembly is typically mounted
near the exit of the process section. Depending upon belt
width, product mass, product number and belt speed, the
motor-sprocket may appear different than the example
shown in Figure 1-11 Transport Drive Motor.
1.4 Console Controls & Indicators
1.4.1 Control Console
Control of the furnace is via the control console (Figure 1-12 LA-306 Control Console) mounted over the
cooling section of the furnace. Independent control of each furnace zone is provided by type K sensing
thermocouples, located above the belt in each zone, coupled to digital temperature controllers that control the
power output of the lamps and sense alarm or alert conditions in each zone.
Figure 1-12 LA-306 Control Console
Figure 1-11 Transport Drive Motor