Applications Manual Bosch Geothermal Heat Pumps
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Bosch Thermotechnology Corp.
Data subject to change
4.2 Bosch Water-to-Water Heat Pumps
Bosch’s Energy Star rated geothermal ready water-to-water
heat pump gives the customer both geothermal heating
and cooling as well as the ability to enjoy the bene ts of
warm radiant oors.
Bosch's Reverse Cycle Chiller/Low Temperature Boiler
offers industry leading ef ciency at full load heating
and cooling, and is even more ef cient during part load
operation utilizing a two stage scroll compressor (Fig. 10,
11). Unless peak capacity is required, the unit can run at
roughly 2/3 capacity at signi cantly higher ef ciencies
than with "single speed, single stage compressor after
products, maintaining maximum comfort with minimum
energy use.
Available from 2 up to 6 tons in a vertical con guration,
these exceptional units provide best-in-class operational
cost savings that help the consumer by reducing monthly
utility bills. The unit comes equipped with many of the
exceptional features of the water-to-air unit, including
two coaxial style uid-to-refrigerant heat exchangers,
a refrigerant reversing valve, a bi-directional thermal
expansion valve metering device, a multi-density sound
absorbing compressor blanket, a oating base pan to
minimize noise transmission, a bi-directional drier and
service ports and the Comfort Alert Diagnostics module.
Bosch’s Energy Star rated geothermal ready water-to-water
heat pump is able to provide both hot water and chilled
water. The water-to-water unit is typically connected to a
buffer tank for storing hot or chilled water. The hydronic
system components can include radiant oor or fan coil
units.
Fig. 10 Water to water heat pump
Fig. 11 Water to water heat pump internal view
