HVAC Calculation Blog – Tips & Tricks
Manual J, Manual D, Manual N, Manual Q, RESCheck and COMCheck explained by the HVAC design team at ACDuctDesign.com. Pick a topic to jump to its latest posts.
Manual J, Manual N and Manual S guides for sizing HVAC systems right.
-

Manual N vs Manual J: Which Load Calculation Does Your Commercial Project Need?
Manual N vs Manual J: how a commercial HVAC load calculation differs from residential and how to tell which one your project needs. -

Manual J, Manual S, and Manual D: What Every HVAC Contractor Needs to Know
Manual J, D, S explained for HVAC contractors: what each ACCA manual does, when permits require them and how to order all three as one package.
Manual D and Manual Q duct design, static pressure and register sizing.
-

What Is a Manual D Duct Design and When Do Building Departments Require It?
What is a Manual D? How ACCA Manual D duct design works, what the report includes and when building departments require it for HVAC permits. -

Manual J, Manual S, and Manual D: What Every HVAC Contractor Needs to Know
Manual J, D, S explained for HVAC contractors: what each ACCA manual does, when permits require them and how to order all three as one package.
RESCheck, COMCheck and Florida Energy Code reports explained.
-

RESCheck vs COMCheck: A Contractor’s Guide to Energy Compliance Reports
RESCheck vs COMCheck: what each energy compliance report covers, which buildings need which, and what to send to get your permit approved.
NEED A PERMIT-READY CALCULATION?
What each state, county and city expects on HVAC permits.
Hospitals, schools, offices and apartment complexes: Manual N, Manual Q and COMCheck.
-

Manual N vs Manual J: Which Load Calculation Does Your Commercial Project Need?
Manual N vs Manual J: how a commercial HVAC load calculation differs from residential and how to tell which one your project needs.
Outsourcing, choosing a calculation service and faster permit approvals.
-

Why Smart HVAC Contractors Outsource Their Manual J and Manual D Calculations
Why HVAC contractors outsource Manual J and Manual D calculations: lower costs, faster permits and ACCA-approved reports delivered in 48 hours, nationwide.
NEED A PERMIT-READY CALCULATION?
Plain-English HVAC answers for homeowners.
-

3 Reasons why should get your A/C properly installed.
When hiring an HVAC Contractor, make sure you verify your installation is ENERGY STAR verified…. -

Did you know that most older A/C systems are over-sized?
Did you know that most older A/C systems are over-sized? Before the era of tightly…

