12.1 High Efficiency Total Heat Recovery Modular Air-cooled Chiller
|Model|| ||EKAC 230BRSR||EKAC 460BRSR||EKAC 690BRSR||EKAC 920BRSR||EKAC 1150BRSR|
|Unit combination||Master unit||EKAC230BRSRM||EKAC230BRSRM||EKAC230BRSRM||EKAC230BRSRM||EKAC230BRSRM|
|Air conditioning mode||Nominal cooling capacity||kW||65.5||131.0||196.5||262.0||327.5||393.0|
|Nominal heating capacity||kW||69||138||207||276||345||414|
|Nominal cooling input power||kW||19.4||38.8||58.2||77.6||97.0||116.4|
|Nominal heating input power||kW||19.2||38.5||57.7||76.9||96.2||115.4|
|Water flow rate for nominal|
|Water flow rate for nominal|
|Hot water mode||Nominal water supply capacity||m3/h||16.3||32.7||49.0||65.4||81.7||98.0|
|Nominal heating capacity||kW||76||152||228||304||380||456|
|Total power of nominal heating capacity||kW||18.4||36.7||55.1||73.5||91.8||110.2|
|Cooling + Heat recovery mode||Nominal cooling capacity||kW||59.7||119.4||179.1||238.8||298.5||358.2|
|Nominal heat recovery capacity||kW||76||152||228||304||380||456|
|Nominal input power||kW||16.3||32.6||48.9||65.2||81.5||97.8|
|Nominal water supply capacity at heat recovery side||3m /h||16.3||32.6||48.9||65.2||81.5||97.8|
|Nominal water flow at|
|Power supply|| ||380V/3N~/50Hz|
|Flow control|| ||Electronic expansion valve|
|Air conditioning side|| ||braze-welded panel-type heat exchanger|
|Hot water side|| ||High-efficiency bucket heat exchanger|
|Compressor||Type|| ||Fully hermetic volute compressor|
|Lubricant|| ||Mineral oil (SUNISO 3GS)|
|Fan||Type|| ||High-efficiency low-noise axial fan|
|Water resistance||Air conditioning side||kPa||45||45||45||45||45||45|
|Hot water side||kPa||75||75||75||75||75||75|
|Minimum diameter for water pipes||Air conditioning side||inch||≥2||≥3||≥3||≥4||≥4||≥5|
|Hot water side||inch||≥2||≥3||≥4||≥4||≥5||≥5|
|Dimensions||L x H||mm||2012×1840|
|Power cable specification||Section area of live line||mm2||≥10||≥35||≥70||≥95||≥120||≥150|
|Qty. of live lines|| ||3|
|Section area of null line||mm2||≥4|
|Qty. of null lines|| ||1|
|Section area of grounding line||mm2||≥10||≥16||≥35||≥50||≥60||≥75|
|Qty. of grounding lines|| ||1|
|Unit weight||Net weight||kg||600||1200||1800||2400||3000||3600|
■ Air conditioning mode: Test conditions for nominal cooling
capacity: outlet water temperature 7°C; water flow: 0.172
m3/(h·kW); outdoor ambient temperature
35°C. Test conditions for nominal heating capacity: outlet water
temperature: 45°C; water flow: 0.172 m3/(h·kW); temperature of
outdoor dry/wet bulb: 7°C/6°C.
■ Cooling + Heat recovery mode Test conditions for nominal cooling
capacity: Hot water side: temperature of outlet water 45°C, water
flow 0.215 m3/(h·kW); Air
conditioning side: temperature of outlet water 7°C, water flow
■ Hot water mode: Test conditions for nominal water flow: Ambient
temp: 20/15°C; outlet water temp: 45°C; water flow of cooling +
heat recovery mode.
■ Water resistance at the air conditioner side includes water
pressure drop of the unit and the attached Y-shaped filter.
■ Water resistance at the hot water side includes water pressure
drop of the unit and does not include the pressure drop at the
Y-shaped filter and other
■ Pipes outside the unit need to be customized and installed on
site. The diameter of the pipes must meet design requirements. EK
does not provide the pipes.
■ Full heat recovery units and other units can be combined to form
partial heat recovery modular system. Full heat recovery units can
also be combined to form a
total heat recovery system. Modular units can be formed using the
1~16 basic modules. The above table lists the parameters for common
■ For on-site electric wiring, see the name plate or installation
menu of the unit.
Total heat recovery Air-cooled chiller/heat pump model feature a
brand new European design and R&D technology.They are a perfect
combination of air-cooled chilled/hot water unit and air source
heat pump hot water unit.
Besides providing cooling in summer and heating in winter for
buildings, units of this series can also provide around-the-clock
hot water of 40°C -55°C no matter in what climate. Therefore, they
can completely replace boilers and save customers a sum of
investment. This is not only cost effective but also environment
friendly. In addition, absorbing heat discharged by air
conditioners can also avoid"urban heat island effect".
Providing Free Hot Water and Saving Investment
In addition to air conditioning, the modular total heat recovery
air-cooled chiller/heat pump also works as a boiler to recycle
waste heat and provide hot water at 40°C - 55°C free of charge.
This saves investment and installation space for a boiler.
Industry-Leading Hybrid Connection Technology
As an industry pioneer, EK launched units that support hybrid
modular connection with common air cooled heat pump units. Total
heat recovery units can be networked with standard modular units to
form a partial heat recovery modular system, and can also be
networked with total heat recovery units to form a Total heat
recovery system to meet different heat recovery requirements.
Efficient and Environment Friendly,Saving More Than 60% of Energy
The unit recycles waste heat generated during condensation to
improve the COP up to 8.32, saving more than 60% of energy compared
with common modular units.Recycling heat is also environment
friendly, and helps to avoid the "Heat Island Effect".
Comfortable and Cost Effective
By running a total heat recovery modular unit in the cooling + hot
water mode, a customer can enjoy comfortable air conditioning as
well as free hot water, especially during transitional seasons.
This makes the unit energy saving and environment friendly.
Units of this series are widely used in places where hot water is
required, such as hotels, hospitals, schools, villas and bathing
Five running modes for choosing
When cooling is required but hot water is not required, a customer
can choose the cooling mode.In this case, the unit works in cooling
only mode, the same as a common air-cooled heat pump unit.
When heating is required but hot water is not required, a customer
can choose the heating mode.In this case, the unit works in heating
only mode,the same as a common air-cooled heat pump unit.
Cooling + Hot Water
When both cooling and hot water are required, a customer can choose
the cooling + hot water mode.In this case, the unit automatically
starts the air conditioning module to provide chilled water for the
air conditioner, and starts the hot water module to generate hot
Heating + Hot Water
When both heating and hot water are required, a customer can choose
the heating + hot water mode.In this case, the unit takes air
conditioning as the first priority, and generates hot water in idle
periods to meet hot water requirement. A customer can also
specified a time period when the unit works in hot water mode.
Hot Water Mode
When hot water is required and air conditioning is not required, a
customer can choose the hot water mode. In this case, the unit only
provides hot water, and works as a common air source heat pump hot