Heating, ventilation and air conditioning system

Abstract

Disclosed in the present application is a heating, ventilation and air conditioning system. The heating, ventilation and air conditioning system comprises an intermediate device, which is located on a refrigerant circuit between a heat source unit and a load unit and comprises a housing, a liquid pipe assembly, an air pipe assembly and a pressure relief assembly. The pressure relief assembly comprises a main pressure relief pipe, a pressure relief valve and a plurality of branch pressure relief pipes, wherein the branch pressure relief pipes are arranged at intervals in a first direction, one end of each branch pressure relief pipe is in communication with an indoor unit liquid pipe between a liquid stop valve and the load unit or an indoor unit air pipe between an air stop valve and the load unit, the other end of each branch pressure relief pipe is in communication with the main pressure relief pipe; the main pressure relief pipe is in communication with the heat source unit; and the pressure relief valve is arranged on a branch pressure relief pipe or the main pressure relief pipe. The technical solution of the present application can solve the problem of the safety being affected after a refrigerant in a current intermediate device leaks.

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