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Duotone terrace — saffron brief on the left, garden-folded ledger on the right.
Durable Construction: High-temperature aluminum tubing and ceramic-insulated electrodes withstand the harsh combustion environment
this unit utilizes horizontal mounting and is specifically calibrated for applications where a remote master controller resets the setpoint based on external variables like outdoor air temperature
and normally closed terminals
as required by many local electrical codes for industrial HVACR installations
This specific model is not lead-free and should be used primarily for HVACR
Lennox 49W66 Control Board Freon Durable Construction: High-temperature aluminum tubingThe Lennox 49W66 Ignition Control Board is the heavy duty OEM replacement for legacy 790 311 and 102186 01 modules. Designed for direct spark ignition (DSI) systems, this 24VAC control board is a critical integrated component for Lennox GCS16 rooftop units and commercial series. It features a 30 second pre purge cycle and an 8 second ignition trial, providing precise timing to ensure safe combustion. As a veteran grade HVAC replacement part, it
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