Railway Equipment 934, Operating Manual

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P/N R9340-0104 6 © 2010 RAILWAY EQUIPMENT CO.
REV B
5/11
B. STANDARD FEATURES OF TRACK SWITCH HOT AIR BLOWER
1. Direct drive motor, totally enclosed fan cooled.
2. High efficiency, quiet operation blower.
3. Voltage sensor to prevent low or high voltage damage.
4. Current coils for open heater detection.
5. Remote operation via contact closure (low voltage, low current) with
timed shut off.
6. Built-in snow detector system (requires Snow Detector assembly option).
7. Auto-Off-Local switch.
8. High temperature limit thermostat/shut off.
9. Adjustable air temperature control.
10. Adjustable rail temperature control.
11. Reply indication via EHAB contact closure.
12. Fail indication via EHAB contact closure.
13. Main circuit breaker.
14. Audible tone before blower startup
15. Weather tight gasketed control enclosure
16. Status indicating lights for all control functions
17. Start delay timer for sequential startup
18. Run timer for timed operation
19. Selectable "Transparent" snow detector operation
20. Snow detect timer
21. All ductwork and nozzles are thermally and electrically isolated from
tracks
22. Quick-release track duct
23. Blower motor starter with overload protection
24. Elevated air intake
25. Adjustable delay for start up (1 Sec. -4.5 Min.)
26. All components mounted and wired within main unit – no external wiring
required except for remote control, indications and optional snow
detectors.
27. Galvanized case constructed of 14-gauge steel, high temperature powder
coated finish.
28. Convenient panel access to fuses and heating elements.
29. Galvanized steel adjustable mounting foundations.
30. Standard ductwork: heat duct with straight insulated flexible
duct and heavy duty insulated offset duct connects to main tie duct
electrically insulated between rails, 24 inch (minimum) switch point
nozzles.