One “ingredient” needed to bolster acceptance of air-to-water heat pumps is standardized piping layouts that can be used with the majority of the heat pumps now available in North America. To that end, let’s start with a very basic heating-only system, and show how the piping topology used for that system can be expanded to add functionality, such as auxiliary heat, cooling and domestic water heating.
The system shown in Figure 1 is based on a monobloc air-to-water heat pump as the sole heat source for a space heating system.
