Features:
- Controls sequenced operation of forced-draught gas, oil and dual-fuel burners.
- Supports staged or modulating burner arrangements with supervised ignition.
- Accepts the documented ionization, infrared or ultraviolet flame-detection methods.
The control unit automates the start, supervised firing and shutdown sequence of medium- and high-performance forced-draught burners, including direct-air-heater applications.
On a valid heat demand, the controller performs the programmed pre-purge and ignition sequence, supervises establishment of flame and then releases the selected burner stage or modulation path.
Confirm the exact Mod 43-35 timing execution, supply voltage, detector type, 70205 subbase wiring, limit chain and burner standard before replacement; similar TMG 740 variants are not interchangeable by appearance alone.
Availability is reviewed against the exact TMG740-3 MOD-43-35 order identity and requested supply condition; manufacturer lifecycle status: Active / Available from OEM.
Verified resources for Honeywell TMG740-3 MOD-43-35:
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
- The flame detector signal is evaluated throughout the safety sequence. If a flame is not established within the permitted safety interval, or is lost during operation, the control unit drives the burner to lockout.
- The same control platform can coordinate gas, oil or dual-fuel equipment and can operate single-stage, two-stage, multi-stage or modulating burner configurations when the external actuator and interlocks match the approved circuit.
- Requires exact timing, detector, supply-voltage and wiring-subbase verification.
- Matches Resideo SKU 08218U and the documented Mod 43-35 timing execution.
- Controls supervised startup, firing, and shutdown sequences for forced-draught burners.
- Requires the 70205 wiring subbase and matching burner interlock circuit.
- Supports forced-draught gas, oil, and dual-fuel burner applications.
- Handles single-stage, two-stage, multi-stage, or modulating operating sequences.
- Accepts ionization, IRD 820/1020, or UVZ 780 flame supervision.
- Uses the separately ordered 70205 subbase for field wiring.
- Operates from the documented 220/240 V AC supply execution.
- Timing and detector selection must match the intended burner application.