ᐅ Heat Pump & Central Mechanical Ventilation System

Neither the controlled residential ventilation system nor the heat pump can dehumidify the air. Therefore, the cooling options are very limited.
Also consider external shading.

Tolentino schrieb:

But is it possible to connect an air conditioning system to a mechanical ventilation system with heat recovery afterward, thus avoiding the installation of new indoor units and new supply lines? Are there mechanical ventilation systems with heat recovery that have provisions for this?

Not to my knowledge.

Strange, does anyone know why not? It seems obvious at first, right? Is there a technical reason behind it?

Tolentino schrieb:

But is it possible to connect an air conditioning system to an existing mechanical ventilation system with heat recovery, so you can avoid installing new indoor units and additional ductwork? Are there ventilation systems that are designed with this option in mind?

Yes, this is commonly done in many office buildings, restaurants, and similar spaces. A system combining heating coils, cooling coils, and a mechanical ventilation unit is installed to cool, heat, and ventilate entire floors. However, you’ve probably noticed how large these systems are, and they’re used not just because it’s feasible but because such capacity is necessary.

In the scale of a typical mechanical ventilation system with heat recovery for a single-family house, this becomes quite impractical. You need approximately 800 cubic meters per hour of air circulation to effectively cool a 20 square meter (215 square feet) room. A standard mechanical ventilation system for a single-family home usually only provides about 300–400 cubic meters (10,600–14,100 cubic feet) per hour for the entire house.

And this doesn’t even take dehumidification into account.

I think you can imagine the rest.

Ah, so the mechanical ventilation with heat recovery system is just too weak...

Yes, it performs very well for its intended purpose, which is to exchange used air.