Cluster Water Source Heat Pump

An apparatus for enabling the use of multiple smaller and commonly available water source heat pump (WSHP) units (the multiple smaller WSHP units) from multiple manufacturers as a Cluster WSHP in lieu of the typical built-up HVAC air handling units (AHUs) found in large commercial buildings, where

• the Cluster WSHP includes an outer enclosure which includes slots for the multiple smaller WSHP units;
• the Cluster WSHP contains a supply plenum and a return plenum for connecting the multiple smaller WSHP units in parallel to the building's supply and return ducts;
• an air connection adaptor is used to air tightly connect each of the multiple smaller WSHP units with the Cluster WSHP;
• the slots for the multiple smaller WSHP units are sufficiently large for the smaller WSHP units that units from multiple vendors will fit with sufficient extra space for the air connection adaptors;
• and
• the multiple smaller WSHP units can be easily removed for service or replacement.