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.

Central Jersey · Seat: New Brunswick

HVAC Calculations in Middlesex County, NJ

Middlesex County is a major transportation and industrial hub in Central Jersey. Engineering demands span warehouse HVAC, pharmaceutical cleanroom ventilation, and large residential suburban developments.

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 Middlesex County and across New Jersey.

Property Parameters

County: Middlesex 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

63.5 MBH

63,484 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 Middlesex County, NJ

HVAC Load Calculator (Manual J) & NJ Sizing

Property Parameters

ESTIMATED LOAD RESULTS

Cities & Townships in Middlesex County

Edison, NJ

Woodbridge, NJ

New Brunswick, NJ