Water Source Heat Pump
GREENSEED® Pioneering Intelligent Water Heating Solutions Since 2012
The GreenSeed® DELTAmax is a commercial water source heat pump that produces hot water up to 80 °C and free cooling at the same time. It extracts heat from a water source, such as a chiller loop, cooling tower or body of water, and upgrades it to high-temperature hot water. The cooled water on the other side becomes free chilled water for your building. DELTAmax comes in three sizes, from 33.6 kW to 134.2 kW of heating with 25.5 to 101.9 kW of cooling, at a COP of 4.24 (heating to 55 °C). It uses Copeland ZW scroll compressors and lower-GWP R134a refrigerant. Because it doesn’t depend on outdoor air, it runs reliably all year round.
Why choose the GreenSeed® DELTAmax
- Hot water plus free cooling: one unit delivers both, for a higher return on investment
- High COP of 4.24: efficient heat transfer means strong energy savings
- Up to 80 °C outlet water: high-temperature hot water for demanding uses
- Environmentally friendly: lower-GWP R134a refrigerant, with zero direct air-pollution emissions
- Reliable all year: not affected by ambient air temperature
- Works with existing systems: pairs with existing water chillers and cooling towers
- Compact, flexible installation: multi-connected heat exchangers fit a range of plant rooms
- Low maintenance: quiet, unobtrusive operation
How a water source heat pump works
A water source heat pump works on the same principle as an air source heat pump, but it draws heat from water instead of air. Water from a source circulates through the evaporator, where the refrigerant absorbs its heat. The compressor then raises that heat to a high temperature in the condenser to make hot water. The water leaving the evaporator is cooled, so it can supply free cooling. The water source must be consistent and sufficient throughout the year.
FAQ
Frequently asked questions
DELTAmax is a commercial water source heat pump from GreenSeed®. It produces hot water up to 80 °C and free cooling at the same time, with 33.6 to 134.2 kW heating capacity and a COP of 4.24.
It is a heat pump that extracts heat from a body of water or a water loop instead of the air, then upgrades it to high-temperature hot water. It is generally quiet, low-maintenance and unaffected by outdoor air temperature.
As DELTAmax draws heat out of the source water to make hot water, the source water leaves colder. That chilled water can be used for cooling, so you get cooling as a free by-product of heating.
Both move heat with a refrigerant cycle. An air source heat pump takes heat from outdoor air, while a water source heat pump takes it from water, which gives more stable year-round performance and lets it supply useful cooling.
Up to 80 °C outlet water temperature.
Three: WHP33 (33.6 kW heating, 25.5 kW cooling), WHP67 (67.1 kW / 50.9 kW) and WHP134 (134.2 kW / 101.9 kW), at the 55 °C rating condition.
Yes. DELTAmax is designed to work with existing water chillers and cooling towers for both hot water and cooling.
A consistent, sufficient water source throughout the year, and a 380–415 V three-phase power supply.
Full specifications for this system are being prepared. Get in touch and we'll send you the brochure.