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.

North Jersey · Seat: Newark

HVAC Calculations in Essex County, NJ

Essex County spans major urban hubs and historic suburban communities. Permits require strict compliance with NJ Uniform Construction Code for HVAC replacement, commercial ventilation, and residential mechanical engineering.

ASHRAE Climate Zone: 4A (Moist)
Building Code: N.J.A.C. 5:23 UCC
Municipal Permits: 100% Compliant
Specialist Partner: airecalc.com

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 Essex County and across New Jersey.

Property Parameters

County: Essex 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

5.5 Tons

63,475 BTU/h

Heating

62.4 MBH

62,370 BTU/h

Airflow

2200 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

HVAC Calculations in Essex County, NJ

HVAC Load Calculator (Manual J) & NJ Sizing

Property Parameters

ESTIMATED LOAD RESULTS

Cities & Townships in Essex County

Newark, NJ

Montclair, NJ

West Orange, NJ