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If you are asking
Field technicians should note the importance of maintaining an airtight seal within the burner housing to prevent ambient light interference from tripping the flame detection system
meeting industry standards for sensitive mechanical environments
If the secondary heat exchanger is heavily rusted
Can I use this for 4-20mA control signals
Tekmar Controls 670 Control 321894-706 If you are askingThe tekmar 670 is a high performance WiFi snow melting control designed specifically for the rigorous demands of commercial and residential hydronic or electric systems. Engineered for seamless integration, this 120Vac snow detector features a 3. 5 inch color touchscreen and is housed in a rugged NEMA 3 enclosure for reliable outdoor protection when required. For hydronic snow melting, it provides integral boiler return protection via mixing valve
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