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HVAC design

Heat load calculations, layouts and equipment selection sized for your building.

HVAC projects

A system that is too small never cools, and one that is too big wastes money every month. We calculate the heat load, choose the right system and draw it so it can be built.

Scope of work

What is included

Heat load calculation

Room by room, from the building's size, glass, people, lights and equipment.

System selection

Split, ductable, VRV/VRF or chilled water, chosen for the building and the budget.

Layout drawings

Equipment, duct and pipe layouts that a site team can build from.

Duct and pipe sizing

Sizes worked out for airflow, noise and pressure drop.

Bill of quantities

An itemised list you can use to compare quotations.

Running cost in mind

Zoning, fresh air and controls planned to keep the electricity bill down.

The design package

Five documents you receive

Heat load sheet

Room-by-room cooling load.

Equipment schedule

Every unit with its capacity.

Layout drawings

Equipment, ducts and pipes.

Duct and pipe sizes

Sized for airflow and noise.

Bill of quantities

Itemised, ready to price.

How we do it

Four steps from enquiry to handover

  1. Brief and site data

    We collect drawings, usage, occupancy and working hours.

  2. Load calculation

    The cooling load is calculated for each space.

  3. Drawings and quantities

    Layouts and the bill of quantities are prepared.

  4. Review and revisions

    We walk you through the design and revise it with your inputs.

Where it is used

Typical applications

New buildings

Design alongside the architect

Office and shop fit-outs

Layouts that fit the interior plan

Factories

Process heat and ventilation

Renovations

Replacing or extending old systems

FAQ

Questions about HVAC design

What do you need to start a design?

The architectural drawings, how each space is used, how many people occupy it, the working hours and the location.

Can we take only the design and execute with another contractor?

Yes. The drawings and bill of quantities are yours to use.

What does TR mean?

TR is ton of refrigeration, the unit of cooling capacity. One TR equals 12,000 BTU per hour, about 3.5 kW of cooling.

Get in touch

Ask about HVAC design

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