Description
The venturi mixing unit (VMU), combined with the V4730C/ V8730C
gas valves and specific direct current (dc) fan, has been
developed for modulating premix appliances like gas burners and
gas boilers.
• Has a wide modulation band (14 to 100% of the boiler load).
• Flexible mounting positions of gas control to venturi manifold and
venturi manifold to fan.
• Two stainless steel sensing tubes are provided for use with or
without manual safety shutoff valve.



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