DTH (Mfg 11/86 & Prior) Tube Heater Parts
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| Installation Manual |
DTH Series – Status: OBSOLETE
| COMMON COMPONENTS | ||
| Part Description | Original Part Number |
Replacement |
| Fan | TP-55 | Not Available |
| Pressure Switch – Burner Side (Normally Open) | TP-61 | Not Available |
| Pressure Switch – Exhaust Side (Normally Closed) | TP-60 | Not Available |
| Radiant Sensor | TP-64 | TP-64 |
| Ignition Device | TP-50 | TP-50A |
| Natural Gas Regulator | TP-33 | Not Available |
| LP Gas Regulator | TP-33P | Not Available |
| Burner | TP-48 | Not Available |
| Natural Gas Valve | TP-36 | Not Available |
| LP Gas Valve | TP-36P | Not Available |
| Burner Housing | TP-42 | Not Available |
| 16″ Burner Tube | TP-6A | Not Available |
| 1st 10 Ft Tube* |
TP-8* | Not Available |
| 10 Ft Reflector (All except first 10 ft) | TP-20B** | Not Available |
* 20 ft. “U” tubes are no longer available (NLA). Consult the factory. Use titanium coated tubes if uncertain about combustion chamber requirements. Also see TP-109 for 5′ replacement sections. All radiant tubes for models shown above are coated aluminized steel (TP-26A”, DB-207″).
** The first 10 Ft. section of reflector differs from the remaining 10 Ft. downstream sections of reflector.
Use TP-20A for the first 10 Ft. Section of reflector and TP-20B for the remaining sections.
DTH Replacement Options
Due to the original design of this heater, it is NOT possible to simply attach a new burner head onto the existing tubing. A new heater is required to replace the old unit.
Original
DTH 20-75 (N or P)
DTH 40-100 (N or P)
Replace with
DES3 20-75 (N or P) and RUP (U bend pkg)
DES3 40-100 (N or P) and RUP (U bend pkg)