When installing an air conditioning system, great care must be taken to locate both the indoor and outdoor units. The simplest way to air condition a dwelling is to place the indoor and outdoor units as close together as possible, i.e. the outdoor unit on the outside wall of the dwelling, on the facade of the building. This results in the least and simplest installation work and the lowest cost for the customer.
The outdoor unit can usually be located next to the dwelling so that the distance between the units is no more than a few metres and the pipes only have to pass through one or two walls. Sometimes, however, this is not possible for some reason or is not allowed. In this case, an alternative location for the outdoor unit of the air conditioner must be found, and one of the most common options is the roof of the building.
When should the outdoor unit of the air conditioner be installed on the roof of the building?
In the case of condominiums, the law on condominiums or the rules of the condominium's organisation and operation restrict the installation of an outdoor air conditioning unit on the building.
The MMS may impose a total ban, but at least the consent of the vast majority of the residents concerned is required.
In many cases, occupants do not want their building to be cluttered with too many air conditioners, or they just don't want the outdoor unit of their neighbour's air conditioner next to their windows, so they allow the outdoor unit to be installed on the facade. It may be a solution for those who can install the outdoor unit on the balcony, but in many cases the occupants do not want this because it takes up a lot of space and also makes noise.
It is important to pay attention to these when installing the outdoor unit on the roof of the building.
In the heat of the summer, the roof can become extremely hot in the hot sun, so it is recommended that the outdoor unit is placed on the shadier side of the roof, in a place sheltered from the sun. It is also advisable to protect it from strong winds and to position it so that precipitation can drain away from its vicinity. Although most modern devices can operate reliably in extreme weather conditions, if you have the option, you should move your device to a more sheltered - but not enclosed!
An outdoor unit placed on the roof of a building must be fixed to a bracket in the same way as in other cases, but using a bracket specifically designed to be fixed to roofs. On a tent-roofed house, the location for the anchorage must be chosen very carefully. A stable, solid and level location should be sought for the outdoor unit. It should preferably be placed away from windows and bedrooms, as its operation generates noise and vibration.
