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Switch Heater Reliability & Energy Management Features
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The burner nozzle,
with direct spark ignition and reflection type flame sensor, ensures
many years of reliable, maintenance-free service. |
The high-efficiency
air foil type blower provides up to 2000 CFM airflow. The gas
control valve, sail switch, and ignition transformer are easily accessible.
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A weather-tight enclosure
contains terminal posts for control and indication connections, main
circuit breaker, motor contactor with overload relay, control transformer,
and control module with air temperature sensor.
The compact, microprocessor-based control module contains manual/remote switches, air temperature control, snow detector plug-in wire connections and status indicating lights.
New software enables quicker restarts - Upon flame-out, the motor now continues to run, rather than going through a purge, shut-off, re-ignition sequence. This, along with a more rapid and sophisticated re-ignition cycle, provides for quicker restarts when they are most needed - during severe weather events.
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The optional SUREFIRE™
Snow Detector works with the temperature-sensing microprocessor control
system. It is easily wired with a 20-ft. cord (included). This detector
also features a replaceable sensor component and a mounting bracket
for a tie post. |
 
SAIL SWITCH HAS BEEN MOVED
- The sail switch detects when air intake is blocked, thereby
creating a dangerous condition. When that happens, the sail switch
triggers circuitry that prevents ignition and fuel flow to the burner.
This device has now been moved further inside the ductwork, away from
areas where it would be susceptible to a false read due to ice or
snow. This improvement increases switch reliability during
weather events. |
TWO-STAGE OPTION - Many
dispatchers find it necessary to ensure track uptime by turning on
switch heaters at the beginning of a weather event and leaving them
on until it has ended. This can become very costly due to unpredictablly
expensive fuel costs.
Now, for the first time, it is possible to ensure track uptime, and save expensive fuel consumption, by cycling back to a half-burn rate once the switch is clean. When the rail reaches a pre-determined high temperature, the switch heater cycles back to a half-burn rate, using only half the fuel. It cycles to fullburn again when the rail temperature drops to a predetermined low temperature. If ordered as a single-stage, this year’s model switch heater can easily be converted to a two-stage operation at a later date.
As a result of the new two-stage design, the fuel orifice has been moved into the air intake chamber instead of the burner tube. This has the benefit of being more easily accessible for maintenance.
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