Heat Pumps

Water source heat pump systems are one of the most efficient, environmentally friendly ways to heat and cool buildings. Each unit responds only to the heating or cooling load of the individual zone it serves. These systems are ideal for condominiums and office building.

Water source heat pump systems consist of multiple water source heat pump units, a building piping loop, cooling tower and boiler. The water source heat pump units themselves are water-to-air heat pumps comprised of a compressor, water/refrigerant heat exchanger, airside coil (refrigerant/air heat exchanger), reversing valve, fan section, filters, drain pan, and cabinet. 

Each zone or space will have one or more water source heat pump units which are connected to a two pipe water loop (one supply pipe and one return pipe). They either reject heat to or extract heat from the piping loop depending on whether they are cooling or heating the space. It will therefore recover and redistribute heat when some of the units are in the heating mode and other units are in the cooling mode.

Each unit responds only to the individual cooling or heating load of the individual zone they serve. This results in close control over the temperature and humidity in each building zone which leads to excellent occupant comfort. Energy use is kept to a minimum because units will generally only operate when there is a call for heating or cooling in their specific zone. In fact in milder conditions the units may operate for only a short period of time during occupied hours.

Water source heat pump units are available in many configurations including horizontal units for above the ceiling applications, small and large vertical units, rooftop units, and console units. All the unit configurations except the console units require a ductwork system for delivering conditioned air to the space.