LS Series Tube Heater (Manufactured 12/12 to 2014)
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| LS Series lnsert |
Common Components | ||
| Part Description | Original Part Number | Replacement |
| Fan | TP-55A or TP-1015 | TP-55A or TP-1015 |
| Pressure Switches | See Below | See Below |
| Circuit Board | TP-351A | TP-351A |
| Wire Harness | TP-352A | TP-352A |
| Ignition Device | TP-50 | TP-50A |
| Relay (Note: This factory installed option is not on all units.) | TP-825 | TP-825 |
| 25-50MBH Burner | TP-1070 | TP-1070 |
| Natural Gas Valve | TP-209 | TP-240 |
| Propane Gas Valve | TP-209P | TP-241 |
| Flame Rod | TP-222 | TP-222 |
| Indicator Lights | TP-328 | TP-328 |
| Thermal Fuse | TP-1033 | TP-1033 |
| 16″ Burner Tube | TP-202 | TP-202 |
| Combustion Chamber | TP-1088 | TP-1088 |
| Radiant Tubes | TP-1082 | TP-1082 |
| 10 ft. Reflector Section2 | TP-20C | TP-20C |
| Baffle1 | TP-1086 and TP-1083 | TP-1086 and TP-1083 |
1 A complete baffle section requires one (1) TP-1086 and two (2) TP-1083.
Pressure Switches | |||||
| BTU/H Range (x1000) | 25 | 30 | 40 | 50 | |
| Switch 12 | Part Number | TP-264E | TP-264D | TP-264F | TP-264F |
| X-Ref., IS220- | -16051F5169 | -20051F5170 | -35051F5132 | -35051F5132 | |
| Normal Setting | Open | Open | Open | Open | |
| P. S. Tube Set | TP-AK3 | TP-AK3 | TP-AK3 | TP-AK3 | |
| Switch 22 | Part Number | TP-1060D | TP-1060D | TP-1060F | TP-1060F |
| X-Ref., IS220- | -048052F5173 | -048052F5173 | -113062F5128 | -113062F5128 | |
| Normal Setting | Closed | Closed | Closed | Closed | |
| P. S. Tube Set | TP-AK5 | TP-AK5 | TP-AK5 | TP-AK5 | |
2 Pressure switch #1 is electrically first in the series, and pressure switch #2 is electrically second in the series.