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the Reznor 122990 Manual Reset Limit Switch is a critical OEM safety component designed for heavy-duty gas-fired unit heaters
Direct Compatibility: Engineered as a drop-in replacement for 326P137
leading to premature element failure and inadequate oil heating
this pressure control switch ensures your air handling units maintain design-spec airflow by monitoring the pressure drop across the filter bank
Watts 0121575 Valve 321894-706 the Reznor 122990 Manual ResetThe Watts 0121575 is a high capacity ASME Section IV water pressure relief valve engineered for commercial hot water heating and domestic supply boiler systems. Built with a lead free copper silicon alloy body, the Watts LF174A 2 inch valve is designed to manage thermal expansion and provide overpressure protection in demanding mechanical rooms. This model features a 150 PSI pressure setting and is capable of a massive steam discharge capacity of
US$ 22.99
US$ 34.99
US$ 24.00