UK VRF GEN 24 - Flipbook - Page 73
VRF SYSTEMS
VRF SYSTEMS INDEX
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 450 kW 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 100 kW of hot water are supplied to the building and therefore the additional benefit of
considerable CO2 savings is ensured.
Low pressure hot water supply
Feed
Return
Input electricity
Nat. Gas
65 mm CHW F&R
150 mm header
Cooling
load room
A
Cooling
load room
B
Package
auto fill
unit
100 mm
CHW F&R
100 Litre
pressure
vessel
Air Cooled
Chiller
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 51 kW hot water demand or
44 kW on chilled application in an efficient and cost
effective way
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.
System example.
Underfloor
Refrigerant
piping
Water
piping
Fan coil
Outdoor unit
ECOi water
heat
exchanger
Buffer
tank
Hide-away
Air handling unit
A buffer tank of minimum 280 l for 28 kW and 500 l for 50 kW 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
Outdoor unit
ECOi water
heat
exchanger
Buffer
tank
-15 ~ 55 °C
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