Mechanical engineering for heat pump and HRV/ERV systems in multiplex and multi-family buildings — duct distribution, equipment selection and CSA F280-12 heating and cooling load calculations, coordinated with the architecture before anything is framed, and issued as stamped, permit-ready drawings.
Scoped per project, but this is what a package normally includes.
Room-by-room heating and cooling loads to the Canadian standard, done per building, so equipment is selected against real numbers rather than rules of thumb.
Equipment selection, supply and return layouts, and duct routing sized to the load and coordinated with the ceiling design.
Per-suite ventilation with outdoor air and exhaust routed to the envelope, tied back into the system rather than ducted twice.
An early look at whether the intended system fits the building — before the ceilings, soffits and chases are committed.
Projects throughout British Columbia, with most work in Metro Vancouver.
If yours is not here, call or send the drawings and we will answer directly.
F280-12 is the Canadian standard for calculating residential heat loss and heat gain room by room. It is what equipment should be sized from, and most authorities expect to see it for new multi-family work. Sizing from floor area alone tends to produce oversized equipment that short-cycles and underperforms.
Each suite is a separate dwelling unit, so each gets its own outdoor air supply and exhaust rather than being ducted together with the others in the building. An HRV or ERV per suite recovers heat from the air being thrown away, which is why it is the usual approach rather than a plain exhaust fan.
Earlier than most people expect. Duct routing competes with structure, lighting and bulkheads for the same ceiling space, and the time to find that out is while the ceiling design is still on paper. A feasibility review at that stage is cheap; discovering a trunk will not fit after framing is not.
Yes, for the mechanical discipline — Schedule B at permit, the field reviews through construction, and Schedule C-B at completion, sealed by a professional engineer (P.Eng.). These are the Letters of Assurance under the BC Building Code, and some municipalities and contractors call them the engineering letters. Worth settling who is carrying those before the job starts rather than at occupancy.
Architectural plans including the ceiling design, the structural drawings, the building envelope specification, and the suite layout. The envelope matters more than anything else to the load calculation, so the better that information is, the better the equipment selection.
Most projects need more than one of these, and they are coordinated together.
Tell us what you are working on and we will come back with a scope and a price — and ask for drawings if we need them.
Or reach us directly