Honeywell TMG740-3 MOD-43-35
Honeywell TMG740-3 MOD-43-35
Honeywell TMG740-3 MOD-43-35
Honeywell TMG740-3 MOD-43-35
Honeywell TMG740-3 MOD-43-35
Honeywell TMG740-3 MOD-43-35
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TMG740-3 MOD-43-35

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Honeywell TMG740-3 MOD-43-35 is a Combined Burner Control Unit, Resideo SKU 08218U. It controls sequenced operation of forced-draught gas, oil and dual-fuel burners.
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Technical specifications for TMG740-3 MOD-43-35

  • Manufacturer:
    Honeywell
  • Part Number:
    TMG740-3 MOD-43-35
  • Product Family:
    Honeywell TMG 740 Series
  • Product Type:
    Combined Burner Control Unit
  • Stock:
    1
  • Current product identity:
    TMG 740-3 mod. 43-35
  • SKU:
    08218U
  • Burner applications:
    Forced-draught gas, oil and dual-fuel burners
  • Operating modes:
    Single-stage, two-stage, multi-stage or modulating burner sequences
  • Flame supervision:
    Ionization electrode, IRD 820/1020 or UVZ 780 according to the documented burner arrangement
  • Subbase:
    70205 wiring subbase ordered separately
  • Supply execution:
    220/240 V AC execution associated with SKU 08218U
  • Tariff Code:
    Please confirm the destination before shipping.
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Applications Safety & Compliance Diagnostics Temperature Range

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.
Description
Honeywell TMG740-3 MOD-43-35 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.

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.

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.
Alternative Names
TMG740-3 MOD-43-35 TMG740 3 MOD 43 35 TMG7403MOD4335 TMG740-3-MOD-43-35 Honeywell TMG740-3 MOD-43-35 Honeywell TMG740 3 MOD 43 35 Honeywell TMG7403MOD4335 Honeywell Combined Burner Control Unit, Resideo SKU 08218U
Technical notes
Because TMG740-3 MOD-43-35 is defined by its timing execution, detector input, 70205 subbase wiring, supply voltage, and limit chain, a visually similar TMG 740 variant is not a safe substitute.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
During burner startup, what is controlled by Honeywell TMG740-3 MOD-43-35?
The control unit automates the start, supervised firing and shutdown sequence of medium- and high-performance forced-draught burners, including direct-air-heater applications.
How does SKU 08218U identify Honeywell TMG740-3 MOD-43-35?
The manufacturer data specifies SKU as 08218U; the installed arrangement must match that exact value.
What happens after a valid heat demand reaches Honeywell TMG740-3 MOD-43-35?
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.
Which timing and detector details must match Honeywell TMG740-3 MOD-43-35?
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.
What supply-status check applies to Honeywell TMG740-3 MOD-43-35?
The page records Active / Available from OEM. Apter Power reviews the exact order identity and condition without presenting this as an OEM delivery promise.
What flame-supervision details belong in a Honeywell TMG740-3 MOD-43-35 inquiry?
Submit the complete nameplate, Flame supervision (Ionization electrode, IRD 820/1020 or UVZ 780 according to the documented burner arrangement), installed system evidence, condition, quantity and destination so the document and quotation match TMG740-3 MOD-43-35.