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I will do hvac load calculation wrightsoft acca csa f280 manual j d s and for permit
WrightDraft
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About this gig
Are you looking for an airtight, permit-ready HVAC design that guarantees immediate municipal approval in the US or Canada? Welcome to WrightDraft HVAC Design.
My name is Muhammad Ahadullah, and I am a Principal HVAC Design Engineer specializing in residential thermal simulations and building permit compliance using Wrightsoft and AutoCAD. With a verified track record of successful municipal submittals, I engineer blueprints according to ACCA protocols and CSA F280-12 standards.
What I Offer In This Gig:
- ACCA Manual J / CSA F280-12: Detailed room-by-room heating and cooling load calculation to prevent system short-cycling.
- ACCA Manual S: Accurate equipment scaling matching Goodman, KeepRite, Carrier, or Heat Pump specs based on regional design temperatures.
- ACCA Manual D / Duct Design: Professional ductwork tracing, sizing, and external static pressure balancing (0.0 to 0.5 in. w.c.).
- Glazing Compliance Check: Detailed wall-to-window ratio analysis for strict energy codes.
Deliverables: A comprehensive engineering PDF report and detailed AutoCAD .dwg layout files.
Clean layout execution, balanced airflow distribution, and absolute code compliance are guaranteed. Message me with you
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Get to know WrightDraft
WrightDraft
HVAC Design Engineer and Wrightsoft Expert
- FromPakistan
- Member sinceAug 2026
- Avg. response time9 hours
- Last delivery6 days
Languages
English
I am an HVAC Design and Drafting Specialist with extensive hands-on experience handling over 150+ live Canadian residential engineering projects. I specialize in ACCA Manual J (Load Calculations), Manual D (Duct Sizing), and Manual S using Wrightsoft and AutoCAD. To ensure a clear record of specifications and respect your time, I communicate exclusively via written messages and document markups.
My Portfolio
FAQ
Q1:How do you balance airflow distribution for rooms built over concrete slabs?
For slab-on-grade zones, I deploy the Centralized Chase Riser and Extended Ceiling Trunk system. Supply velocities are stepped down through dropped bulkheads directly to ceiling diffusers, fully maintaining flat system static pressures (0.0 to 0.5 in. w.c.) without any spatial friction losses.
Q2: Do your designs comply with USA's IECC and Canada's OBC SB-12?
Yes. For Canada, I ensure compliance with CSA F280-12 and OBC SB-12, keeping window areas within the 17%–20% limits. For US projects, I design according to IECC/ASHRAE frameworks, managing glazing thresholds up to 40% or engineering performance-path trade-offs for high-glass custom luxury villas.
Q3: What specific engineering files will I receive for building permits?
You will receive a complete permit-ready package containing full Wrightsoft summary report profiles (with specific ACCA Manual J/S/D or CSA heat loss/gain matrices, load distribution metrics, and AHRI indices) alongside detailed high-resolution AutoCAD (.dwg) source layouts for all duct runs.
Can you engineer hybrid configurations with Heat Pumps and furnaces?
Yes, I specialize in modeling advanced dual-fuel and hybrid heating loops in Wrightsoft. Integrating Manual S or HRAI data, I align low-ambient electric heat pumps with backup gas furnaces or HRV ventilation, adjusting crossover temperature points to your climate zone to maximize energy savings.
