Product Overview
The TP-222A is a flame rod sensing wire for Re-Verber-Ray gas-fired tube heaters, manufactured by Detroit Radiant Products Co. The wire completes the electrical circuit between the burner's flame rod electrode and the ignition control module. When the burner fires, the flame establishes an ionic current path through the rod; the wire conducts that small rectified current to the control board, which reads it as proof of flame. A broken, corroded, or shorted wire causes the control to lock out on a flame-failure fault even when the burner is lit. Replacing the wire restores that signal path.
It is the listed replacement for alternate part number 1611-51, the earlier Detroit Radiant catalog number for the same wire. The reverberray.com product page also lists cross-reference number 6038393 alongside the TP-222A; this number is attributed to Detroit Radiant Products Co. as an internal cross-reference, and the originating OEM manufacturer for 6038393 is not identified in available sources. Confirm the cross-reference against the heater's parts list before ordering. Fits Re-Verber-Ray tube heater series including HL2, HL3, CL3, CX3, DX2, LD3, LS3, DSRF, DSRL, DSRS, HLV, and SV; see the Fitment panel for the full model list.
The part ships as a single wire with no factory calibration required.
Before replacing the flame rod wire, disconnect power to the heater at the disconnect switch or circuit breaker. Verify the replacement part number against the heater series parts chart in the installation manual before ordering. A qualified technician should confirm proper ignition control lockout-and-reset behavior after the wire is replaced. No dedicated per-part install sheet is published for the TP-222A; refer to the heater series manual for wiring diagrams and parts callouts.
Specifications
| Function | Sensing wire for Flame Rod |
| Used On (series) | HL2, HL3, CL3, CX3, DX2, LD3, LS3, DSRF, DSRL, DSRS, HLV, SV |
| Voltage | N/A |
| Gas Type | N/A |
| Shipping Method | UPS or USPS |
Cross-Reference & Fitment
| Alternate part numbers | 1611-51, 6038393 |
| Fits | HL, HL2, HL3, HL-VA, CL3, CX3, DSRF, DSRL, DSRS, DX2, LD3, LS3, SV |