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The Fenwal Series 35-70 utilizes Detect-A-Flame technology for robust flame sensing
this spring kit is rated for hot water
Replaces older
You can often diagnose internal bypassing by measuring the temperature difference between the suction line from the evaporator and the permanent suction line
the kit provides the necessary brackets and ceramic nuts to adapt to the existing burner bracket
Hydrotherm BM-7989 Gas Valve 30067439-890 The Fenwal Series 35-70 utilizesThe Hydrotherm BM 7989 Gas Valve is an industrial grade 3 4" 2 stage combination gas control engineered for high capacity intermittent pilot appliances. Serving as the direct replacement for VR8304Q4511, this valve manages fuel flow with a 300,000 BTU hr capacity, making it a critical component for Hydrotherm boiler service and commercial furnace maintenance. This unit features a straight through body pattern and is designed for 24 Vac systems,
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