SINGLE-FAMILY RESIDENCE REMODEL + ADDITION — HVAC Mechanical Design with ACCA Manual J, Manual S, and Manual D Reports.
This 3,938-square-foot custom home just northeast of Tucson received slight tweaks and new exterior doors and windows. The recently replaced HVAC systems were retained, and we redesigned the mechanical air distribution systems to compensate for the envelope changes.
Client: Soloway Designs
Category: HVAC Mechanical Design
Date: September 2024
ACCA Manual J Heat Gain/Loss Summary
– Cooling Gain (Sensible): 57,252 BTUH
– Cooling Gain (Total): 57,252 BTUH
– Heating Loss: 51,312 BTUH
HVAC Mechanical Design Parameters
– Jurisdiction: Pima County, Arizona
– Outdoor Design Clg/Htg: 105°F/35°F
– Indoor Design Clg/Htg: 72°F/72°F
Cooling Equipment Summary (North System)
– Existing Day & Night packaged gas/electric unit
– Total Capacity: 5.0 tons / 327 sqft per ton
Heating Equipment Summary (North System)
– Existing Day & Night 81% packaged gas/electric unit
– 90,000 BTUH input / 74,000 BTUH output
Cooling Equipment Summary (South System)
– Existing Carrier split gas/electric system
– Total Capacity: 5.0 tons / 444 sqft per ton
Heating Equipment Summary (South System)
– Existing Carrier 80% up-flow gas furnace
– 90,000 BTUH input / 72,000 BTUH output
