Rooftops. Types of rooftops. Features of operation.

Rooftop – this is a monoblock device that is mounted on the roof and performs three functions at once in one room – air conditioning, heating and ventilation.

This device is easy to install, easy to operate and at the same time has a very modest price when compared with other options for engineering systems.

Types of rooftops:

- only cooling;

- cooling and heating with a gas burner or with an electric heater;

- with heat pump and heater to choose from.

All types of rooftops have a ventilation function.

Rooftops primarily operate in air recirculation mode, and fresh air is supplied with the help of «admixture», which is carried out using mechanical dampers. The dampers have a control range, which most often varies from 0 – full recirculation to 30 % – fresh air admixture.

What is fresh air intake? The easiest way to explain it is with numbers. For example, the air consumption of a rooftop is 10,000 m³/h, if we take 30 % fresh air, this means that 3,000 m³/h of air from the street will be supplied to the room, and 3,000 m³/h of air from the room will be «thrown out» outside.

You may have a question – «So why not use this type of equipment everywhere?».

Rooftop has several features that do not allow it to be used on all objects without exception:

1. Static pressure. Most rooftops have at their disposal up to 400 Pa, which is not enough to «push through» a large network of air ducts with high resistance.
2. No zone temperature control. Theoretically, if you install a rooftop in an office space, you can use adjustable diffusers to limit the supply of cooled air to a separate room, thereby regulating the temperature in this room, but this is difficult, expensive and uncomfortable.
Based on the characteristics of rooftops, they are most widely used in the so-called one-volume rooms. These are supermarkets, warehouses, gyms and other similar premises.

For very large areas, there are no restrictions on the number of rooftops per room.