HVAC Calculations

Estimated Cooling Load (Tons): .25 to .35 tons per 100 square feet of total building area: Estimated Heating Load (MBH): 1.5 to 2.5 MBH per 100 square feet of total building area: Estimated CFM: 75 to 125 cfm per 100 square feet of total area: Chilled Water GPM: 2.4 gpm per of cooling

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Office Buildings Mechanical Systems Engineering

The Mayer Building is a 6-level 56000 square foot office Building located at 1130 SW Morrison Street in downtown Portland. The facility was constructed in the early 1900s and has gone through several renovations. The central heating plant consists of (2) cast iron steam with a thermal efficiency of about 75% (estimated).

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