ERACS.E-N-R&ERACS.E-Q Series – 4 Pipe/Heat Recovery
Air Cooled Heat Pumps
ERACS.E-N-R&ERACS.E-Q Series
Cooling capacity: 297～1351KW
Heating capacity：309～1414KW
Multi-use Heat Pumps for 4-pipe systems are the simultaneous and independent production of hot and cold water. This combined approach allows 4-pipe heat pumps to heat and cool adjacent but diverse ambients within the same building. Climaevneta multi-functional integrated air-cooled heat pump is an energy-saving solution developed and designed for simultaneous and different cooling and heating needs. It is especially suitable for office buildings, shopping malls, and supermarkets with internal and external partitions, swimming pools, and senior apartments requiring cooling and perennial hot water heating, chilled water dehumidification and reheat air treatment systems, and process production with simultaneous cooling and heating needs, and other occasions requiring cooling and heating at the same time. The multi-functional integrated air-cooled heat pump adopts Climaveneta’s mature and advanced air-conditioning refrigeration technology and unique and ingenious design, so that it can automatically balance the cooling and heating needs, and can meet the cooling and heating needs of different loads at the same time. The whole series of products meets the national energy-saving standards.
Functions:
-R Total heat recovery -Q 4-pipe systems -B standard Unit -SL: Super Low Noise Unit
Frame Structure Description:
Base and frame made of thick, hot-galvanized, shaped sheet steel. All parts are polyester-painted.
Larger Operating Range:
1. Cooling only mode:
– Chilled water temperature from 5 to 15°C
– Air temperature from -8 to 46°C
2. Heating only mode:
– Hot water temperature from 20 to 60°C
– Air temperature from -10 to 43°C
3. Simultaneous cooling and heating mode:
– Chilled water temperature from 5 to 15°C
– Hot water temperature from 26 to 60°C
– Air temperature from -10 to 43°C
Compressor Description:
2. Precisely manufactured twin-screw rotor with aircraft-grade bearings featuring high reliability, low noise, low vibration, and stable running;
Evaporator Description：
1. Direct expansion heat exchanger type with asymmetric refrigerant paths to maintain the correct refrigerant velocity inside the tubes during both liquid and gaseous phases. Not only can the refrigerant be fully evaporated, but also the circulating resistance of the circuit is reduced.
2. Compared with the symmetrical structure, the asymmetric evaporator not only has higher heat exchange efficiency but also has a higher oil return effect.
3. The steel shell is insulated with a closed-cell anticondensation lining. The copper pipes are internally grooved so as to improve the heat exchange. The pipes are mechanically expanded onto the tube plate ends. An antifreeze electric heater prevents the formation of ice inside the exchanger casing when the unit is not in operation but is connected to the electrical supply. A differential pressure switch for controlling the water flow is fitted standard.
4. The design, manufacture, and inspection of the evaporator comply with national standards and regulations for pressure vessels, such as GB / 150 steel pressure vessels and JB / 4765 pressure vessels for refrigeration devices.
Condenser：
1. The inverted M-shaped structure is adopted to increase the heat exchange area on the premise of constant unit volume; Uniform wind speed distribution, high-performance heat exchange, reduced frosting time during heating, and improved heating and defrosting performance.
2. The air-cooled condenser adopts the original secondary refrigerant circuit technology, which is composed of copper tubes through aluminum fins. The end of the condenser is connected with the auxiliary refrigeration circuit, so that the refrigerant is in the supercooling state, and the internal thread tube is used to increase the heat exchange area and reduce Freon disturbance.
3. With a corrugated sheet design, the condenser of the unit is not easy to be blocked, the maintenance cost of the unit is reduced, and the service life is longer. The aluminum sheet adopts a thickened design, which makes it less likely to collapse.
Control Cabinet：
1. The unit startup and microcomputer control parts are integrated into the same control cabinet and located at the front of the unit, which is convenient for the on-site operators to operate in the machine room and between the units. The maintenance of all electrical parts can be carried out at the front of the unit.
2. The electrical control box is made of a high-quality steel plate, and the external surface has been galvanized and treated with anti-corrosion treatment, which can effectively protect the electrical components of the unit.
3. For the safety of the operator, once the host is powered on, the operator will not be able to open the isolation board between the control and electrical components to ensure the safety of the operator.
Control System：
1. New generation regulation system with human-computer interface, better extended utility, supervision, and compatibility.
2. Panel screen on the unit, easy operation, and better protection. Microprocessor regulation fulfills human-free running.
3. W3000 with LCD display, multi-language & multilevel menu for data display & set-point regulation.According to CLIMAVENETA tradition, another display of the compressor’s working data is adopted for easy supervision.
4. A dedicated W3000 microprocessor is inserted with CLIMAVENETA control algorithm to ensure energy saving and reliability.
5. The FIFO compressor running time balance function extends the unit’ working life;
6. Auto compressor power input control following load change from 25-100% for energy saving;
7. Environment adaptation by data regulation and setting;
8. Modulating measurement is used for temperature and pressure protection. It can increase reliability and predict fault will occur.
9. Expansion kit for remote control and group control.
10. Available in BMS control, such as ModBus, LonWorks, and BacNet control systems.
11. Microprocessors have complete fault prediction, alarm, record, and self-diagnose functions, assuring operation protection & working state.
12. “Black Box” records 400 faults and 200 data points before each fault, which diagnoses & remove the fault quickly
13. We can also find potential faults and take preventive action before they occur by CLIMAVENETA remote service program
Electric Expansion Valve：
EEV for precise control to meet load changes.
Dedicated Economizer：
The dedicated economizer is equipped for all units to increase heat exchange and supercooling. Finally, enhance working performance and efficiency.
High Performance Fan：
High-efficiency exterior rotor fan from a German brand, featuring a variable-speed controller. It can change fan speed automatically (DVV design) to reduce energy consumption and fan noise.
Innovative Intelligent Defrost Function (CLIMAVENETA Patent)：
The reverse cycle type intelligent defrost function introduces the self-adjust technology, which can automatically modify and regulate the judgment and data for the next defrosting according to the change of ambient air temperature, humidity, and defrost time, as well as the difficulty level of the last defrosting. So the defrost no longer needs manual adjusting, and it can be fitted for all kinds of weather conditions. Much precise, reliable, and energy-saving than the traditional defrosting method.
Meet the national energy efficiency grade：
The whole series has reached the national level II energy efficiency grade
