| 摘要 |
A method for adjusting the ratio of the replacement air flow to the discharge air flow in an air heating system is described. In air heating systems, a state is sought, in which, even instantaneously, as much replacement air flows into the building as discharge air flows out of the building. This aim is achieved by means of the invention which is based on the idea that if the temperature change of both air flows after flowing through the heat recovery arrangement is the same, the air flows themselves are also the same size. Consequently, by measuring the relevant temperature differences and by mutual comparison of the same, a very reliable picture of the ratio of the air flows is received. |
