Equipment Circuit: optional BCSC from the nameplate. When it is greater than RLA, it sizes the wire, breaker and disconnect, as NEC 2023 and 2026 require (440.6(A)). Disconnect row added: at least 115% of the current, ampere rating. A compressor alone may use the next higher standard breaker size (440.22(A) Exc. 1); with a fan or heater the size is still rounded down. Restore purchase now says wha
1.0.5Oct 6, 2026 · seen Oct 18, 2026
Span Check: rafters only. Floor and ceiling joists, headers and beams are withdrawn; the joist data did not pass a check against IRC 2021. Box Fill: isolated grounding conductors count with the others. Standard breaker sizes start at 10 A (A/C keeps 15 A). Saved calculations in both can read differently. Concrete, Footing: Width is entered in feet; the field was labelled inches. NEC 690 Reference:
TradeTools: HVAC & Electrical is a tools app by Rizvan Adzhoyan with 100+ downloads (about 294 estimated). +37 installs in the last 7 days. Released Sep 10, 2026. Install growth, rank history, SDKs and ad networks.
From the store listing: “62 calculators: superheat, PT chart, wire size, voltage drop + job estimates”
