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it must be installed with the characterizing disc on the upstream side
or rooftops where salt air and moisture typically degrade standard aluminum housings
maintaining system uptime and reliable combustion cycles during high-demand heating seasons
For contractors performing maintenance
a minimum differential pressure (typically 5 PSI) is required to ensure the main orifice opens and closes reliably
Daikin-McQuay 258981901 Fan Blade THPU32HP7Y it must be installed withThe Daikin McQuay 258981901 Fan Blade is a heavy duty condenser fan blade engineered for high static efficiency in large tonnage HVAC systems. This 26 inch, 4 blade assembly features a 5 8" bore and is designed for clockwise (CW) rotation. When performing field service on McQuay chillers or Daikin air cooled units, maintaining precise static pressure and CFM delivery is critical; this OEM replacement ensures the motor maintains the correct amp draw