Zoning a Two-Pipe System

Balancing problems for two-pipe hydronic heating systems in larger houses and buildings can be solved by splitting the existing system into two or more separate zones independently controlled by their own thermostats. This can be accomplished by installing a two — position valve in the hot-water supply line. The valve is actuated by its own thermostat (Figure 7-8).

Posted in Audel HVAC Fundamentals Volume 1 Heating Systems, Furnaces, and Boilers