Water Heat Exchanger for hydronic applications


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When a top London restaurant opened, it needed large volumes of fresh air to ensure the optimum dining environment. ECO G units connected to the cooling coils within the air handling equipment ensured the air was introduced in the right condition in both summer and winter.



Chiller replacement. Chilled water supply to fan coils

Chiller replacement.
When some old chillers needed replacing at the end of their operational lifetime, ECO Gs with Water Heat Exchangers enabled the project to be carried out in stages whilst still utilising the existing water pipe work and fan coils. This enabled the project to be delivered on time, to a restricted budget and avoided all issues regarding refrigerant in confined spaces.
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Connection to ‘close control’ computer equipment

Computer room applications.
When all available electrical power needed to be utilised for the IT equipment for a leading international bank, the cooling load of over 450kW had to be powered by gas. The outdoor units were connected via Water Heat Exchangers to cooling coils inside the ‘close control’ units thereby maintaining a conditioned environment for temperature and humidity. By utilising the hot water function over 100kW of hot water are supplied to the building and therefore the additional benefit of considerable CO2 savings is ensured.
  1. Input electricity Nat. Gas
  2. Low pressure hot water supply
  3. Feed
  4. Return
  5. 100mm CHW F&R
  6. Cooling load room A
  7. Cooling load room B
  8. Air Cooled Chiller
  9. Package auto fill unit
  10. 100 Litre pressure vessel
  11. 65mm CHW F&R
  12. 150mm header
This Part L design has reduced C02 Emissions by 26% or 166 tonnes per annum compared to electric chillers.

Specifications subject to change without notice. Rating Conditions: Cooling Indoor 27°C DB 19°C WB Outdoor 35°C DB 24°C WB Heating Indoor 20°C DB Outdoor 7°C DB 6°C WB.
This drawing is copyright. // 1. Do not scale this drawing // 2. Errors / omissions to be immediately notified to the Engineer. // 3. All dimensions to be checked on site.


ECOi Water Heat Exchanger

Electrical VRF with Water Heat Exchanger
· With this easy to install Water Heat Exchanger unit, you can now cover projects up to 51kW hot water demand or 44kW on chilled application on a efficient way and cost effective

System example.
A. Outdoor unit
B. Refrigerant piping
C. ECO G chiller Water Heat Exchanger
D. Water piping
E. Buffer tank
F. Fan coil unit
G. Underfloor
H. Air Handling Unit

A Buffer tank of minimum 280l for 28kW and 500l for 50kW is always needed.

Example of Hotel renewal of existing Chiller and Boiler system with Panasonic ECO G and Aquarea mixed solution.

ECO G and Aquarea are the smart solution for renewal Chiller/Boiler applications with annual running cost savings around 13.600€.

WATER TEMPERATURE -15 ~ 55°C
A. Buffer tank