US Patent 8397799 Automatic switching two pipe hydronic system

A system for simultaneously heating and cooling a first portion and a second portion of a space utilizes a plurality of boilers, chillers, heat exchangers, condenser pumps and closed loop pumps by using a plurality of sensors indicating the temperatures inside and outside the space and a controlling module controlling the operation of the system. The present disclosure can be easily achieved by making minor configurational modifications to existing systems, thereby increasing system versatility.