Worked cases

Eleven buildings, each modelled from a published prototype or a real product, each run against its own typical meteorological year, each one open to inspection — the machines are published systems you can load, the building runs on every plan including Free. The numbers are readings of the model, not brochure figures; where a case leaves something open, the page says so.

A cleanroom that dries by its damper, not its heater

Taipei

An ISO 7 room at twenty air changes on a recirculating handler: 549 MWh of electricity a year with electric reheat, 162 with face-and-bypass — and the makeup-air unit that was supposed to fix it, built, measured and declined.

A supermarket floor dried at the door, and a freezer held at −20 °C

Houston

Display cases as a negative gain, three gas rooftops, a dedicated outside-air unit that takes the sales floor's humid hours from 1 126 to 0, and a frozen store on a remote low-temperature condensing unit.

A district plant serving three buildings through a manifold

New York

Four Copeland scrolls on R513A as a 600 kW-class stand-in, a rated cooling tower, a 6.5 °C loop to a library, a lecture hall and a laboratory — and the humid hours a boiler-fired reheat did not hold.

Two operating theatres held between 30 and 60 % RH in Helsinki

Helsinki

A steam humidifier steered to a room humidity floor, 40 % outside air with no economiser, a 120 kW preheat, and a recovery ward on a fan coil with heat of its own.

An office floor on one packaged VAV rooftop

Chicago

The DOE Medium Office plan — four perimeter zones and a core — on a 90.1 System 5 rooftop with boxes, an economiser, demand-controlled ventilation and a supply fan holding duct static.

A mall where two machines feed each other, one hour behind

London

Five rooms, a chilled-water VAV air handler fed by an air-cooled modular chiller drawn as its own block, a DX split, and a dedicated outside-air unit leading the screening room.

An edge data centre on a warm loop

Singapore

Two data halls on a chilled-water CRAH fed by a chiller holding 13 °C, a UPS room on a remote condensing unit and an indoor DX unit, and a staffed NOC on a split — held on Singapore's year.

Three fan-coil wings and a lobby on one chiller, through a manifold

Miami

Guest rooms on the DOE Small Hotel rhythm — full at night, out by day — on two-pipe fan coils, a lobby on an outside-air unit that carries the latent plus a fan coil of its own, five receivers on one chiller.

A primary school that burns gas and pumps heat

Toronto

Classroom wings on reversible DX splits — frost derate and all — and a gym on a packaged rooftop with a gas furnace: the first example that burns gas, and what a heat pump does at −20 °C.

A logistics hall cooled by water in a dry climate

Phoenix

Three two-stage evaporative units — an indirect stage ahead of a direct pad — leading a 2 000 m² hall, with a gas rooftop behind them for winter nights and the hottest afternoons' trim.

A telecom shelter where the economiser is the machine

Denver

A 20 m² equipment room with 3 kW of radios around the clock on one split; the winter week's coil duty is under 5 % of the summer's, on less electricity.

Every figure comes from measure_examples_on_their_years on the day the case was written and moves when the model does; the history of every reading is kept with the code. Results are engineering estimates from catalog data and published correlations.

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