Jumper on the heating battery: why is it needed?

Alexey Kuznetsov

In this single-tube or serial water central heating scheme for multi-apartment buildings shown here, the worst-case version of this system is considered when direct power water flows through the attics and is distributed in parallel to all water heating towers, and the reverse power supply water from all of them is also taken in parallel through the basement of the house with a return suction line. But in many, if not most, apartment buildings, the single-pipe sequential central water heating system is even worse !!! In these houses, the main direct hot power water does not start in the attics at all, but is laid along all the basements of the houses in parallel with the suction main of the cooled return power water. And in this worst-case one-pipe sequential system of water central heating of apartment buildings, the heating riser of one room is connected in the basement through the shutoff valves to the supply line of hot direct power water, and the heating riser in the next room is also connected through the shutoff valves in the basement to another suction main of the cooled reverse power water. And in the attic of the house, or in the apartment on its top floor, the heating risers in adjacent rooms simply close to each other, thereby forming closed circuits of the coolant circulation between them so that a direct hot power goes up from the basement heating in the basement in one room water, and along the heating riser of the next room from above, cooling reverse power water descends from it into the basement of the house to the suction !!! It is precisely with this, in most cases, the worst-organized sequential scheme of central water heating of multi-apartment buildings that the most glaring difference in temperature of heating radiators is observed in two neighboring rooms of apartment buildings, especially on their lower floors, where the reverse power water reaches the bottom through the top of the house on the riser of one room in the apartment in the most cooled condition, while the hottest direct power water rising straight up from the basement of the house next to the riser of the next room so that it simply does not touch the radiator of water heating !!! And at the beginning of each heating season, with such a blatant organization of a sequential central water heating system, the same problems arise associated with the constant reflux of water from the main pipes of water heating pipes with compressed air, with the formation of air plugs in them with their subsequent failure to start, or stopping them spontaneously, after which they must be spilled carefully throughout their water circuit to restore their work, wasting too much cubic meters of expensive hot water for their purging, for which the tenants of these multi-unit residential buildings are indirectly forced to pay houses !!! Alexei.