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The Lennox 15H05 Relay Board is essential for the regulation and management of your cooling systems
5 gpm and a proportional control valve for hot and cold water
which ensures compatibility with many applications
631 inches
Maxitrol M520-1/2 1/2 inch Modulating Valve for HVAC Hydronic Applications old-gtin_32279564419183 The Lennox 15H05 Relay BoardProduct Description The Maxitrol M520 1 2 is a 1 2 inch modulating valve designed for indirect fired atmospheric burner applications, commonly utilized in HVAC systems. It is crafted to maintain outlet pressure slightly above atmospheric pressure with the bypass closed and zero voltage applied. Factory set pressure adjustment spring ensures reliability. Suitable for use with Series 3 and Series 94 systems. Installation by a licensed gas fitter
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