Industrial 130kW EER 3.39 Air Cooled Modular Chiller Heat Pump Unit

Description:



1. The 130 kW modular unit saves investments on water systems. Compared with
two 65 kW modules, one 130 kW modular unit saves the investment on the pipeline
and accessories of one water system.

2. Compared with a combination of two 65 kW modules, one 130 kW, modular unit
saves the land area by 14%.

3. The 130 kW modules support seamless installation and save the land area by
30% compared with 65 kW modules when multiple modules are combined during
installation.

4. Sixteen 130kW modules may be combined, which easily expands the capacity of
an air-cooled modular unit from 130 kW to 2080 kW.

5. The unit inherits the advantages of the 65 kW module, and uses the precise
flow control technologies by using electronic expansion valves and efficient
plate-type heat exchangers. The system performs optimal matching to ensure that
the energy efficiency of the unit is above the energy performance certification
standard of.

6. The RoHS certified environment-friendly galvanized steel sheet and 120μm-
thick orange-peel spraying endow the unit shell with anti-erosion, hard fall-
off, and slow fading. This makes the unit work a long time.

7. The unit adopts high-performing inner grooved copper pipes provided by well-
known suppliers, which help the refrigerant form liquid film on the inner walls
of the pipes, greatly increasing the heat exchange efficiency.

8. Compared with the traditional air-cooled modular unit that uses a thermal
expansion valve, EK air-cooled modular unit uses 500-step PMV electronic pulse
for precise adjustment to implement precise PID control. The system implements
real-time matching and precise water temperature control, fully improving the
optimal performance of each component inside the system. This makes the unit
operate steadily at any workload and automatically adapt to varying ambient
temperatures, solving the oscillation issue of a cooling system. In addition,
the temperature output of the system is more steady, and the indoor temperature
is more balanced, improving comfort.

9. The genuine dual-system panel-type heat exchanger can bear a 3.0 MPa
pressure at the water side, and provide the pressure bearing capability for a
water system in a high building. Compared with a shell-and-tube heat exchanger,
this heat exchanger delivers higher heat exchange efficiency, and provides a
cleaner internal environment. Compared with a traditional back-to-back heat
exchanger, it provides higher heat exchanger efficiency and delivers higher
anti-freeze capability at partial workload. When operating at partial workload,
it provides higher heat exchange efficiency. A standard configuration provides
a water pressure drop switch to monitor the unit water flow in real time as
well as precise anti-freeze control.

10. Different from a traditional secondary pumping system, the primary Pumping
Variable Flow System features variable flows at the refrigerant side and
workload side and shares one transducer pump group. Its flow may drop with the
workload of the air conditioner, greatly saving the operating expenses for the
chilled water pump of the air conditioning system.

11. The unit may send out 2-way valve water control signals to cut off chilled
water. This enables automatic flow control for pumps in line with the
transducer, which helps easily implement primary Pumping Variable Flow System.

12. It is applicable to projects where the cooling workload of the air
conditioner changes greatly, and the air conditioner works at partial workload
for a long time.

13. Compared with the secondary pumping system, it saves the initial investment
on the cooling water pump and pipes at the primary pumping system and on the
power distribution system, and requires a smaller area of the equipment room.

14. EK test center is accredited by the CNAS national test lab. The EKAC
modular air-cooled heat pump units pass the tests for extreme conditions by the
national test lab, including anti-erosion, exhaustion, and frequent start. This
endows the unit with extremely high reliability. Each unit passes 100%
reliability test before factory delivery for quality assurance. A standard
configuration provides a water sieve and a water pressure drop switch, which
ensures that the unit does not run when the water supply is short or cut off.

15. The unit provides 13 powerful built-in protection functions, including
protection against high/low voltage of compressors, protection against phase
loss or inversion of the power supply, protection against frequent startup,
compressor over-current protection, compressor air exhaust temperature
protection, protection against unit overheating, sensor fault protection, anti-
freeze protection for cooling, anti-freeze protection for the water system in
winter, water flow protection, and ambient temperature protection.

16. The fan uses low-noise axial blades driven by the motor in direct
connection. The blades pass dynamic balance and static balance tests. The whole
unit is designed with shock isolation and multi-plenum noise reduction. Fully
hermetic volute low-noise compressors from famous vendors and efficient low-
noise fans ensure leading-edge noise and vibration levels. With the help of
noise spectrum analysis, components such as fan and motor are carefully
compared, selected, and improved, and noises of the structure and pipes are
reduced.

17. The unit adopts intelligent defrosting technologies for precise defrosting
settings, which help make comprehensive judgment based on the ambient
temperature and suction temperature. The unit saves energy as much as possible
by automatically correcting the conditions for defrosting based on the change
curve of the coil temperature and by taking defrosting conditions in previous
periods into account. In this manner, the unit implements precise defrosting
based on the actual conditions, ensuring maximum operation time for normal
heating, and minimizing the fluctuation of hot water temperature due to
defrosting.

18. Any EK slave module may become a master module upon switchover. Damage to
the master module does not affect running of other modules. In addition, any
combination may be formed by using modules of the same or different models. A
system may consist of 16 modules. Products of other vendors support only a
specific unit as the master module. Once the master module is damaged, the
whole system cannot work properly. As a result, debugging and maintenance are
difficult.

19. The unit adopts a micro computer control system with a large screen LCD,
facilitating use. Each control system can dynamically monitor the running
status of 16 units, and supports RS485 communication interfaces. The control
system runs the Modbus protocol for cluster control.

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