HEAT MEDIUM SUPPLY STRUCTURE FOR AGGREGATE BUILDING

PROBLEM TO BE SOLVED: To provide an economical heat medium supply facility showing less thermal loss.SOLUTION: A heat medium supply structure of an aggregate building (10) composed of several floors including several dwelling units for every floor comprises a heat exchanger (16) installed at each of the dwelling units (1A to 5E); several in-group heat medium pipe passages (14) installed at every groups (A to E) with dwelling units ranging from the first floor to the uppermost floor being set as one group, extending in a vertical direction through the dwelling units belonging to the groups and connected to all the heat exchangers in the groups; auxiliary heat sources (13A to 13E) installed for every groups so as to heat the heat medium flowing in the in-group heat medium pipe passages; a heat medium storage tank (11) for supplying the heat medium to all in-group heat medium pipe passages; and a solar collector (18). 【課題】熱損失の少ない経済的な熱媒供給設備を提供する。【解決手段】複数階からなり階毎に複数の住戸を有する集合建物（１０）の熱媒供給構造は、各住戸（１Ａ〜５Ｅ）に設置される熱交換器（１６）と、平面位置が重なり合う１階から最上階までの住戸を１つのグループとしてグループ（Ａ〜Ｅ）毎に設けられ該グループに属する住戸を貫通して上下方向に延び該グループ内のすべての熱交換器と接続する複数のグループ内熱媒管路（１４）と、グループ毎に設けられてグループ内熱媒管路を流れる熱媒を加熱する補助熱源（１３Ａ〜１３Ｅ）と、すべてのグループ内熱媒管路に熱媒を供給する熱媒貯留タンク（１１）と、太陽熱集熱器（１８）とを備える。【選択図】図１