07 UK HYDRONICS GEN 24 LR - Flipbook - Page 91
INDEX HYDRONICS AND ROOFTOPS
WATER SOURCE HEAT
CHILLERS
PUMPS
What is a water loop system with water source heat pumps?
The water loop system enables distributed cooling and heating
production at different temperatures with a single water circuit.
The recovery of condensation heat units in cooling can used for units in
heating and vice-versa, thus providing a balanced and highly efficient
system. These indoor units are called water source heat pumps which
are equipped with a compressor and 2 heat exchangers to allow energy
transfer between the water loop and air within the space.
Environmentally friendly and economic
* Model shown: ECOi-LOOP-N EVO.
Electrical box
Frequency inverter
Inverter compressor*
Cycle reversing valve
Thermostatic expansion
valve
Air filter
Coaxial heat exchanger
(water to refrigerant)*
EC fan*
Condensate drain pan
Finned coil (refrigerant to
air)
Key features for ECOi-LOOP.
· High efficiency
· Heating and cooling of rooms at the same time. All
units are connected to the same water loop
· Decentralised cool/heat production (closed water
circuit)
· Water heater or cooling tower do not need to be
operated as long as cooling and heating loads are
roughly balanced. Temperature in the water loop will
be kept between 16 and 32 °C
· Reduced refrigerant charge (no refrigerant pipes to an
outdoor unit required)
· Low risk of leakage (hermetically sealed systems)
· Water source heat pumps can be easily added or
removed without changing the system layout
· Each unit is autonomous and has its own controller
allowing also its own safety
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