Do I need a PE stamped HVAC design for a building permit in New Jersey?

Yes, under N.J.A.C. 5:23 (New Jersey Uniform Construction Code), commercial HVAC modifications, new multi-family developments, and extensive residential renovations requiring municipal permits require signed and sealed mechanical plans by a licensed NJ Professional Engineer (PE).

What is an ACCA Manual J calculation and why is it necessary?

Manual J is the industry-standard methodology for calculating heat loss and heat gain in a building. It accounts for ceiling heights, wall R-values, window orientation, and local outdoor design temperatures to prevent over-sizing or under-sizing HVAC equipment.

How fast can CoralDesign deliver PE stamped HVAC plans in NJ?

Our average turnaround for residential Manual J/S/D calculation reports and mechanical floor plans is 48 to 72 hours. Commercial rooftop unit (RTU) and VRF engineering packages typically take 3 to 5 business days.

HVAC Load Calculator (Manual J) & Duct Sizer

Estimate cooling tonnage, heating BTUs, airflow CFM, and main duct trunk sizing adjusted for New Jersey outdoor design temperatures.

N.J.A.C. 5:23 UCC COMPLIANT

HVAC Load Calculator (Manual J) & NJ Sizing

Estimated calculation of cooling tonnage, heating BTUs, and duct sizes for projects in Bergen County and across New Jersey.

Property Parameters

County: Bergen County

Location in New Jersey (County / ASHRAE Zone)

Total Area (Sq Ft)2,200 sq ft

Ceiling Height (Feet)9 ft

Standard (8ft)Cathedral (12ft+)

Project Type

Thermal Insulation (R-Value)

Regular Occupants

ESTIMATED LOAD RESULTS

ACCA Standard

Cooling

6 Tons

68,425 BTU/h

Heating

64.6 MBH

64,598 BTU/h

Airflow

2400 CFM

400 CFM / Ton

Main Duct

24" x 14" (Dual Trunk)

Rec. dimension

ACCA Technical Calculations Service in NJ:

Get the official Manual J/S/D calculation report and permit package through our specialized partner airecalc.com.

Get Permit Report on airecalc.com

Technical Dossiers for Permits in New Jersey • N.J.A.C. 5:23 UCC

How Manual J Calculations Work

ACCA Manual J standard evaluates building heat gain and loss through walls, roofs, windows, and floors. This calculator uses algorithms calibrated with New Jersey outdoor design temperatures (ASHRAE Zones 4A and 5A).

Prevents equipment over-sizing

Optimizes static duct pressure

Official partner airecalc.com for permits