Seeking HVAC Design/Calculations Sub – Phoenix ADU Mini-Split Substitution (Manual J/S + Fresh Air Compliance)

HVAC · posted 18d ago

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**Seeking HVAC Design/Calculations Sub – Phoenix ADU Mini-Split Substitution (Manual J/S + Fresh Air Compliance)** Looking for an experienced HVAC professional or mechanical designer in the Phoenix area to prepare a complete, city-ready documentation package for an HVAC equipment substitution on a permitted ~600 SF ADU. **Project details** * Location:, Phoenix, AZ 85042 (R1-6, approved ADU plans) * Goal: Substitute the originally approved dual-zone system with **(2) Midea 9,000 BTU 19.5 SEER2 inverter mini-splits 115V)** – Indoor: MSBNS-H09B-1A – Outdoor: MO1CS-H09B-1A * Must produce a full, corrected package that addresses all City of Phoenix comments so we can obtain approval for the substitution. **City of Phoenix comments to resolve (key points)** * Original plans showed a dual-zone / two-air-handler system; current proposal needs to clearly show two separate mini-split systems. *…

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