Pool-hall dehumidifier, 5 m³/s
by HVAC Builder
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A heat-pump dehumidifier for a pool hall: an eight-row DX coil that takes the water out of the hall's air, a reclaim condenser on the pool water that puts the heat the pool lost back into it first, the condenser in the air stream reheating with the rest — the hot-gas reheat every pool unit dries with — and a supply fan, on eight inverter scroll modules. Run humidity-led in a building: steered on the hall's humidity ceiling alone, the hall's temperature and outside air another machine's. Published as an example; the figures below are solved from this model.
Example90–135 kW heating + coolingEUExample system. Published by HVAC Builder to show suppliers what their own page looks like. There is no company behind it and it is not a product offer — the specification is generic and the performance is solved from the model on this page.
Design-point performance
Solved from this example's own model as it is published — the same numbers a supplier's page shows for their machine.
Component schedule
| Component | Kind | Duty |
|---|---|---|
| Dehumidifying DX coil | DX evaporator | 128.0 kW |
| Reheat condenser (in the supply) | Condenser | -91.4 kW |
| Supply fan | Fan | -3.2 kW |
| Inverter scroll (seven modules) | Compressor | 17.5 kW |
| Reclaim condenser on pool water | Pipe-in-pipe HX | — |
Heat-pump rating
No refrigerant circuit in this machine is declared cooling-only, and none condenses in an evaporative condenser, so it is also rated as a heat pump. Solved with the circuit running backwards at the standard air-to-air heating rating point — outdoor 7 °C dry bulb / 6 °C wet bulb, indoor 20 / 15 °C (EN 14511) — not at the supplier's own design conditions above, so the two ratings can be compared across machines.
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