WSHP Electrification · Heating, Cooling & Hot Water
Your water-source heat pumps are already electric. The gas is in the plant that holds their loop: a boiler for winter, a cooling tower for summer, and a separate water heater down the hall. VRX replaces all three with one electric plant and leaves the heat pumps in place.
01 / Today
In a conventional water-source heat pump building, every unit connects to a common water loop. When the loop runs warm, a cooling tower rejects the heat outdoors. When it runs cold, a gas boiler adds heat back. Domestic hot water usually comes from a separate gas-fired heater.
That means a building full of heat pumps can still depend on three combustion or water-treatment plants, each with its own service contract, and it throws heat away in one place while it burns gas to make heat in another.
02 / What leaves the building
HydroCore takes over the job the tower and boiler shared: holding the common loop at a nominal 77°F, adding or removing heat as the building needs it. A water-to-water heat pump makes domestic hot water from the same loop.
The existing heat pumps stay connected to the loop they are already on. The tower, its water treatment and basin cleaning, the boiler, its flue and combustion service, and the separate water heater leave with the retired equipment.
03 / How the loop works
Heat pumps in cooling mode reject heat into the loop. Heat pumps in heating mode, and the domestic hot water heat pump, draw it back out. Much of the time the building trades heat with itself, and HydroCore only trims the difference to hold setpoint, in both heating and cooling seasons.
Summer, the worst season for a gas water heater’s economics, becomes the season with the most recovered heat available for hot water.
Loop heating and hot water are both electric. The gas service, flue and combustion inspections can come off the building.
No evaporative tower means no chemical program, no drift and no basin cleaning.
The heat pumps and their loop piping stay, so most of the work happens at the plant rather than in occupied space.
04 / The plant
A single-package, 4-pipe hydronic platform for simultaneous heating and cooling, with factory-integrated valves, pumping, controls and power panel in a compact footprint.
HydroCore is the same platform behind our data center cooling. Selection is made against your loop flow, your heating and cooling balance, and your hot water profile.
05 / Sound
Removing a cooling tower takes its fan and falling-water noise with it. HydroCore sound is modeled from Samsung’s published per-cell data, so the neighbors and the reviewer can see the numbers before anything is set on the roof.
The acoustic basis below is for a full 1 MW HydroCore module, 16 cells on a 52′ × 8′ skid, all cells at rated cooling. Smaller building plants use fewer cells, and each halving of cells is 3 dB lower at every distance. Silent modes reduce sound further at reduced capacity.
06 / Where it fits
Guest-room heat pumps stay, and showers run on heat the building is already rejecting.
Take the tower and gas service off the property without re-work in every unit.
Perimeter and interior in opposite modes share heat across the same loop.
The same HydroCore platform serves liquid-cooled and heat-recovery loops. See data centers.
Want room-by-room control too? VRX HydroLoop goes further, replacing ducted zone groups with individual room fan coils on the same 77°F loop.
07 / Written for the reviewer
Every conversion starts with the existing equipment: heat pump model and rated entering-water range, loop flow and pumping, the building’s heating and cooling balance, and its hot water demand.
This is a conceptual arrangement. Final equipment, electrical service and maintenance requirements depend on project design. We will not tell you a project is code‑compliant; every project needs its own engineering validation and authority review.
Send the heat pump schedule, the tower and boiler nameplates and the water heater. We will tell you what HydroCore replaces and what leaves the building.