About This Document Purpose This document mainly introduces the product overview, installation, controller operation, routine maintenance and troubleshooting of EMW90HDNC1A 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 ...
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Do not allow liquids such as water to enter the comply with relevant requirements and adopt terminal area of the device during installation special methods for independent treatment to and maintenance. avoid potential pollution to the environment EMW90HDNC1A Air-cooled Chiller...
It adopts modular design and compact appearance. Product Appearance It supports smart refrigeration The appearance of EMW90HDNC1A chiller is and heating functions. shown in Figure 2-2. Complete It supports RS485 and CAN Figure 2-2 Product appearance ...
2.1.2 Function Description Figure 2-2. Figure 2-2 Chiller composition structure Smart Refrigeration / Heating The EMW90HDNC1A chiller is equipped with From the load side high-efficiency controller, and supports a field communicator to visually set control parameters, which is easy to operate.
18°C and the started. 2.2.2 Control Logic heating sensitivity is 3°C, the heating start The control logic of EMW90HDNC1A chiller is point is 15°C shown in Table 2-2. (18°C-3°C*100%=15° Table 2-2 Control logic C), and the heating stop point is 18°C...
The parameter specifications of the running. EMW90HDNC1A chiller are shown in Table 2-4. Table 2-4 Parameter specifications When there is a refrigeration demand, the refrigeration...
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6-4: Generic standards. Electromagnetic compatibility (EMC) - Part 61000-4-2/3/4/5/6 4: Testing and measurement techniques. Water chilling (heat pump) packages using the vapor compression cycle - Part 2: GB/T 18430-2008 Water chilling (heat pump) packages for household and similar application EMW90HDNC1A Air-cooled Chiller...
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 EMW90HDNC1A chiller is shown in Figure 3-1. Figure 3-1 Physical dimension 58.5 1150 EMW90HDNC1A Air-cooled Chiller...
Please refer to the requirements in Table 3-1 for package within one week. installation to ensure the normal operation of the Please count the number of units and chiller. installation accessories according to the list of accessories. EMW90HDNC1A Air-cooled Chiller...
Clean the condenser of transport the chiller to the planned r special the air conditioning installation area. cleaning system. Step 2 Use a Phillips screwdriver and M6 water gun combination screw to fix the chiller with the planned mounting bracket. EMW90HDNC1A Air-cooled Chiller...
Ground of national and local electrical codes. mark 2 Background Single-pha se power The user wiring interface of EMW90HDNC1A Input power supply L1 chiller adopts fool-proof design, please refer to POWER interface of Table 3-3 for details of the interface.
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Step 3 Turn on the circuit breaker of the chiller. Remove the cover on the circuit breaker (see mark 1 in Figure 3-2), turn on the circuit breaker and install the cover back. EMW90HDNC1A Air-cooled Chiller...
If there is no voltage, monitoring and dispatching keyboard operation after a period of time, the temperature, environmental backlit light will dim. temperature and electronic control EMW90HDNC1A Air-cooled Chiller...
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Check the version information of time, alarm recovery date and time control software, display software and point and alarm content. parameter table. Restore factory settings. EMW90HDNC1A Air-cooled Chiller...
Figure 4-3 4.5 Status Click Status on the homepage interface of the system to view the current environmental status, operating status and group control status (optional) of the chiller. EMW90HDNC1A Air-cooled Chiller...
Temp PV (outlet coolant temperature) curve, Outl Pre (outlet coolant pressure) curve and Intl Pre (inlet coolant pressure) curve by default. Users can perform the following operations in the Graphic interface. EMW90HDNC1A Air-cooled Chiller...
Default Value Setting Range Unit Description Cool SP [-5~55] °C Refer to Table 2-2 for the on and off conditions of cooling. Cool Sens [1~10] °C Heat SP [-4~30] °C Refer to Table 2-2 for the on EMW90HDNC1A Air-cooled Chiller...
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When the group control function is not provided, Setting interface the values of the parameters in the Team Setting interface are displayed as "****", as shown in Parameter Description Figure 4-15. Set to Team when supporting Team group control function. EMW90HDNC1A Air-cooled Chiller...
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Default Default: The maximum corresponding 1 Gear rated refrigerating capacity is 8kW. CompSpeed Default Gear 2 Gear 1 Gear: The maximum corresponding rated refrigerating capacity is 7.8kW. 3 Gear EMW90HDNC1A Air-cooled Chiller...
4-18. The current system time of the unit can be according to the prompts, you can view the set in this interface. control system version information and perform Figure 4-18 Time Setting interface factory reset operations. EMW90HDNC1A Air-cooled Chiller...
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Parameter value modification is allowed only after the correct password is entered. EMW90HDNC1A Air-cooled Chiller...
Clean the dust of the fan the fan and no with a brush and clean the Operational Visual foreign matter 6 months foreign matter at the tuyere reliability of fan inspection blockage at the after 10 minutes of power tuyere off. EMW90HDNC1A 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. EMW90HDNC1A 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. EMW90HDNC1A 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. EMW90HDNC1A Air-cooled Chiller...
Replace the fan, please refer to 7.4.2 Wear of fan bearings Replacing the External Circulation Fan for Abnormal sound details. of external circulation fan Check whether cables interfere with fan Fan blades scratch other objects blades. EMW90HDNC1A 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. EMW90HDNC1A 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 EMW90HDNC1A chiller are shown in Figure 7-1. Figure 7-1 Parts description 1: Plate heat exchanger 2: Condenser 3: Refrigerant pipeline...
It is strictly forbidden to treat the failed compressor as element and circulation pump for unclassified municipal waste, and it must be treated replacement. independently according to relevant requirements. Step 7 Install in reverse order from Step 5 to Step 1 to complete the parts replacement. EMW90HDNC1A Air-cooled Chiller...
7.5 Alarm Handling The alarm information of EMW90HDNC1A 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 EMW90HDNC1A 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. EMW90HDNC1A 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. EMW90HDNC1A 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. EMW90HDNC1A 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. EMW90HDNC1A 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. EMW90HDNC1A 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 Coolant flow is too low. Replenish coolant. The suction superheat EMW90HDNC1A 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. EMW90HDNC1A 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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