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Atmospheric Venting: Intermediate vent port protects the potable system by discharging leakage to the atmosphere if the downstream check is fouled
Enhanced System Reliability: Accurately detects fluctuations to prevent operational issues
Common Questions Is this relay adjustable
safety controls should never be downgraded
Lennox 22V24 Smart Stat 318518-761 Atmospheric Venting: Intermediate vent portThe Lennox 22V24 S40 Smart Thermostat is a high performance communicating HVAC control designed for precise 3HT 2CL system management. As a veteran grade digital thermostat replacement for the legacy Lennox 19V30 and 10F81 models, the S40 eliminates the need for external gateways by utilizing a one piece architecture that interfaces directly with Lennox communicating equipment. Its 7 inch HD touchscreen serves as a comprehensive command center,
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