TM 5-3895-374-24-2
I. HEATER MAJOR & SUBMAJOR COMPONENTS
1. Jacketed Firebox
2. Heat Exchanger
3. Expansion Tank
4. Burner
5. Burner Canopy
6. Panel Box
7. Skid
8. Exhaust Stack
9. Access Door
10. Sight Glass
11. Heat Exchanger Inspection Door
12. Lifting Eye
13. Expansion Tank Supports
II. HEATER PIPING
14. Heat Transfer Oil (HTO) Fill
15. Overflow-vent Pipe
16. HTO Heat Trap
17. HTO Drain
18. HTO Supply Line
19. HTO Return Line
20. HTO Suction Line
21. HTO Connecting Line
III. HEATER VALVES
22. HTO Supply Valve
23. HTO Return Valve
24. By-pass Valve
25. HTO Suction Line Valve
26. Sight Glass Valves
IV. PUMPS AND MOTORS
27. HTO Circulating Pump
28. Circulating Pump Motor
29. Fuel Oil Pump
30. Burner Motor
V. FUEL CONNECTIONS
31. Fuel Oil Connection
(See Section 5.8 for Details)
32. Gas Train Connection
(See Section 5.9 for Details)
VI. BURNER COMPONENTS
33. Damper Motor
(Full Modulation & Two-Stage Burners only)
34. Fuel Oil Ignition Transformer
35. Gas Ignition Transformer
36. Gas Ignition Electrode
37. Burner Junction Box
38. Ultraviolet Flame Detector (Minipeeper)
39. Gas Pilot Solenoid Valve
40. Gas Pilot Needle Valve
41. High-low Fire & Full Modulation Linkage
(Not on Fixed-fire Burners)
42. Fuel Oil Pressure Gauges
43. Gas Pressure Gauge
44. Air In-take Shutters
45. Air Flow Switch
VII. CONTROL DEVICES
46. HTO Thermometers
47. High Temperature Limit Switch
48. Circulating Pump Pressure Gauge
49. Operating and Indicating Lights
50. Circulating Pump & Burner On-Off Switch
51. HTO Temperature Controller
52. Low Oil Safety Switch
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