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Built for rigorous commercial boiler maintenance
which can be adjusted if your specific application requires a different threshold
System Logic Management: Orchestrates the start-up sequence
42" WC sensitivity
Lennox 49L04 Sight Glass 321702-401 Built for rigorous commercial boilerThe Lennox 49L04 Sight Glass is a heavy duty moisture and liquid indicator designed for precise refrigerant monitoring in high pressure commercial and residential HVACR systems. This moisture indicator sight glass features a high visibility element that provides an immediate visual diagnostic of the system's internal chemistry. As a critical liquid line sight glass, it allows technicians to verify refrigerant charge levels by identifying bubbles that
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