About This Document Purpose This document mainly introduces the product overview, installation, controller operation, routine maintenance and troubleshooting of EMW90HDNC1U air cooled chiller, which is convenient for readers to master the use and maintenance of air cooled chiller. Intended Audience...
Please entrust professionals for installation, electrical engineering and maintenance. Declaration Self-installation may lead to accidents such as Envicool does not take responsibilities for the water leakage, electric shock or fire. following situations: Operate the device in abnormal conditions or ...
Smart Refrigeration / Heating products developed mainly for heat dissipation in the energy storage (such as battery) industry. The The EMW90HDNC1U chiller is equipped with applicable scenarios are as follows: high-efficiency controller, and supports a field communicator to visually set control parameters, The battery in the energy storage container ...
When there is a cooling demand, only the internal circulating pump is turned on. The pump is running at low speed, and other components such as the compressor are not running. EMW90HDNC1U Air-cooled Chiller...
Parameter Specifications The parameter specifications of the Some technical parameters marked on the equipment EMW90HDNC1U chiller are shown in Table 2-5. nameplate will not be repeated here. Table 2-5 Parameter specifications Refer to Table 4-2 for the refrigeration and heating ...
When handling the bare machine of the chiller, it is forbidden to use the coolant inlet and outlet interfaces as the force-bearing support. 3.1.2 Physical Dimension The dimension of the EMW90HDNC1U chiller is shown in Figure 3-1. Figure 3-1 Physical dimension 391.5 58.5 38.2 198.6...
The customer particular attention to whether there are loose needs to refer to the chiller size in Figure 3-1 to parts, pits, scratches, and oil leakage. If any prefabricate the installation bracket, and reserve EMW90HDNC1U Air-cooled Chiller...
Background Step 9 Connect the coolant inlet and outlet pipes of the chiller according to the screen The user wiring interface of EMW90HDNC1U printing. chiller adopts fool-proof design, please refer to 1. Connect the coolant outlet of chiller Table 3-3 for details of the interface.
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Input power supply L POWER interface of Single-pha the chiller. power supply N Single-pha power Power supply L interface of PUMP the coolant Single-pha filling pump. power supply N 12V+ Field communicat DEBUG communicati on interface. EMW90HDNC1U Air-cooled Chiller...
Running status includes working The meanings of icons in the control interface of status of circulating pump, the chillers are shown in Table 4-1. EMW90HDNC1U Air-cooled Chiller...
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Check the version information of control software, display software and parameter table. Restore factory settings. EMW90HDNC1U Air-cooled Chiller...
"Key Off" to "Running". On any interface, if there preheated for a sufficient period of time. is no keyboard operation for 180 seconds, the system will automatically return to the homepage interface. The dialog box popped up when shutting down is shown in Figure 4-4. EMW90HDNC1U Air-cooled Chiller...
(optional) of the chiller. in Figure 4-7. Figure 4-5 Envir Status interface 4.6 Record Click Record on the homepage interface of the system to view the current operation record and operation log of the chiller. Figure 4-8 Run Record interface EMW90HDNC1U Air-cooled Chiller...
Click the temperature value and pressure value around the curve display area, you can modify the temperature value and pressure value range according to the actual plan. EMW90HDNC1U Air-cooled Chiller...
When the system detects that the current outlet coolant Outlet Low temperature is lower than the [-20~20] °C Temp Sp value of this parameter, it will judge that the outlet coolant temperature is too low. EMW90HDNC1U Air-cooled Chiller...
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Team Setting local address is configured as 1, interface are displayed as "****", as shown in and the other backup unit Figure 4-15. address is configured as 2. Mode Set to Auto. EMW90HDNC1U Air-cooled Chiller...
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6.5kW 3 Gear 3 Gear: The maximum corresponding rated refrigerating capacity is 6kW. The default values and value ranges of the above parameters are for reference only, and the factory settings shall prevail. EMW90HDNC1U Air-cooled Chiller...
4.10 Maintain Click Maintain on the homepage interface of the system, and the system displays the interface shown in Figure 4-19. EMW90HDNC1U Air-cooled Chiller...
During the long-term use of the chiller, the coolant may appear mechanical dirt, high hardness, high chemical dirt content, biological dirt, slime bacteria, and algae. It is recommended to inspect, purify and maintain EMW90HDNC1U Air-cooled Chiller...
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Step 12 After the coolant filling is completed, close the air discharge valve at the highest point of the connecting pipeline, close the ball valve behind the coolant filling port, then remove the coolant filling pump and install the maintenance panel below the chiller. EMW90HDNC1U Air-cooled Chiller...
10 minutes free of dirt of power off. The above maintenance intervals are only recommended values, you can adjust them according to actual planning. 6.3 Fans Maintenance Routine maintenance of fans is shown in Table 6-2. EMW90HDNC1U Air-cooled Chiller...
6 months works fine abnormal (such as inspection The location of the circuit short circuit) breaker is shown in Figure 3-2. The above maintenance intervals are only recommended values, you can adjust them according to actual planning. EMW90HDNC1U Air-cooled Chiller...
The above maintenance period is only a suggested value, and user can adjust it according to the actual performance of the coolant. The maintenance cycle of the coolant with better stability can be relatively extended. EMW90HDNC1U Air-cooled Chiller...
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Add the coolant, check the PH value and electrolyte concentration of the coolant. For details, see 5 Coolant Filling and Replenishment. After the coolant replenishment is completed, close the ball valve at the coolant filling port and remove the pipe. EMW90HDNC1U Air-cooled Chiller...
Abnormal sound details. of external circulation fan Check whether cables interfere with fan Fan blades scratch other objects blades. 7.2 Fault of Refrigeration System Common faults and maintenance methods of refrigeration system are shown in Table 7-2. EMW90HDNC1U Air-cooled Chiller...
Check the main power switch, and check Unpowered (standby) whether the operation display interface is Internal circulating turned on. pump does not Loose circuit connection Fasten the circuit connector. start Malfunction of pump inverter Replace the pump inverter. EMW90HDNC1U Air-cooled Chiller...
Electrical Heater and Circulation Pump for specific operation. 7.4 Parts Replacement 7.4.1 Parts Description The main parts and their locations in the EMW90HDNC1U chiller are shown in Figure 7-1. Figure 7-1 Parts description 1: Plate heat exchanger 2: Condenser 3: Refrigerant pipeline...
à une mauvaise utilisation. L'élimination de ce compresseur défectueux en tant que 7.4.5 Replacing the Electrical déchet municipal non trié est strictement interdite et doit respecter les exigences pertinentes pour une Components élimination indépendante. EMW90HDNC1U Air-cooled Chiller...
Procedure 7.5 Alarm Handling The alarm information of EMW90HDNC1U chiller is shown in Table 7-4. The locking alarm (such as "System High Pressure Alarm Locking") needs to be manually released by first powering off the chiller and then powering on the chiller, and other alarms will be automatically released when the current scene does not meet the alarm conditions.
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The pressure Low Press of circulation pump is Tighten the electrical control difference between Difference of loose or the cable is wiring or replace the cable. inlet and outlet coolant Water Pump damaged. is less than the alarm EMW90HDNC1U Air-cooled Chiller...
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Compressor converter is blocked. converter. Freq frequency converter Converter temperature is higher The ambient temperature Lower the ambient temperature. OverTemp than over-temperature is too high. alarm point. Replace the frequency The fan is damaged. converter. EMW90HDNC1U Air-cooled Chiller...
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Exhaust Exhaust temperature There is sundries Temp Too is higher than the set Clean up the sundries at the blockage in the outdoor High value. outdoor air outlet of coolant air return outlet of coolant chiller. chiller. EMW90HDNC1U Air-cooled Chiller...
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Check the outdoor temperature. System High Three system too high. Pressure high-pressure alarms Loose wiring of high Alarm occurred within one Tighten the electrical control pressure switch or Locking hour. wiring or replace the cable. damaged cable. EMW90HDNC1U Air-cooled Chiller...
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Manual torque increase or improper V/F curve Adjust the manual lifting torque leads to acceleration or V/F curve. overcurrent. Starting the rotating motor Wait for the motor to stop leads to accelerating before starting. overcurrent. EMW90HDNC1U Air-cooled Chiller...
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Three frequency Freq converter under The input terminal voltage Converter voltage alarms of the frequency Undervoltage Adjust the voltage to the normal occurred within one converter is not within the Locking range. hour. specification requirements. EMW90HDNC1U Air-cooled Chiller...
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Tighten the electrical control control wiring is loose, or System low pressure side of wiring, or replace the cable. the cable is damaged. the system is too low The suction superheat Coolant flow is too low. Replenish coolant. EMW90HDNC1U Air-cooled Chiller...
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Replace the frequency Under Abnormal bus voltage. undervoltage alarm converter. Voltage point. Rectifier bridge and buffer Replace the frequency resistance are abnormal. converter. Replace the frequency Abnormal driving board. converter. Replace the frequency Abnormal control panel. converter. EMW90HDNC1U Air-cooled Chiller...
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No further notice will be given for the data changes made by the manufacturer for the continuous upgrading of products. 声明: 版权所有,禁止任何未经授权的拷贝和抄袭。 厂家对产品持续升级进行的资料更改,恕不另行通知。 Shenzhen Envicool Technology Co., Ltd. Address: Building 9, Hongxin Industrial Park, Guanlan street, Longhua District, Shenzhen Telephone: (86)755-29588896...
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