Midea SCAG Series Installation, Operation And Maintenance Manual

Flooded air cooled screw chiller

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Flooded Air Cooled Screw Chiller

Installation, Operation and Maintenance Manual

SCAG***

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and read it carefully before operation

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Summary of Contents for Midea SCAG Series

Page 1 Flooded Air Cooled Screw Chiller Installation, Operation and Maintenance Manual SCAG*** Please keep this manual carefully for future reference Please keep this manual carefully for future reference and read it carefully before operation and read it carefully before operation...
Page 3 Description ◼ The installation section in this manual is provided only for professional installation personnel. ◼ Before using the unit, carefully read the "Unit and Controller Operating Instructions" to avoid damaging the unit and causing accidents due to incorrect operation. This manual is subject to change without notice.
Page 4: Table Of Contents
Contents 1 Introduction ································ 3 1.1 Functions ········································ 3 1.2 Main Parts ········································ 3 2 Operating Range ······························ 5 2.1 Installation Environment ·································· 5 2.2 Water-side Pressure Drop of Shell-and-tube Heat Exchanger ·················· 5 2.3 Variable Flow of Shell-and-tube Heat Exchanger ······················· 5 3 Dimensions ································...
Page 5 6.3 General Grounding Requirements ····························· 34 6.4 General Wiring Requirements ······························ 35 6.5 Recommended Selection of Unit Cable: ·························· 36 6.6 Water Pump Wiring ··································· 37 6.7 Unit Wiring ······································· 38 7 Unit Commissioning ····························· 41 7.1 Precautions before Commissioning ···························· 41 7.2 Commissioning Operation Procedure ···························...
Page 6: Introduction
1 Introduction 1 Introduction 1.1 Functions The fixed-frequency flooded air cooled screw chiller is at the forefront of air cooled unit technology. It does not require multiple auxiliary attachments such as a cooling tower, cooling water pump, boiler, or pipe system, and so the system structure is simple and occupies little space.
Page 7 1.2.4 Liquid Ejector System Midea fixed-frequency air cooled screw chiller can effectively monitor the compressor motor temperature. The standard liquid ejector system located at the rear of the compressor is able to cool down the motor, so as to control the compressor discharge temperature, to prevent the motor or lubricating oil overheating.
Page 8: Operating Range
2 Operating Range 2 Operating Range 2.1 Installation Environment Standard type (T1) Ambient temperature 10⁰C~43⁰C Water outlet temperature 5⁰C~20⁰C Minimum water flow Maximum water flow 130% Note that the unit must be installed on a foundation with good drainage. In addition, corrosive atmospheric environment or extremely high humidity environment will cause corrosion to the unit.
Page 9 2 Operating Range ensure the required water capacity is met. The tank has a built-in baffle plate to ensure total mixing. For example: Poor Good Poor Good...
Page 10: Dimensions
3 Dimensions 3 Dimensions 3.1 Dimensions of SCAG115H ① Chilled water outlet ② Chilled water inlet ③ Control panel ④ Power incoming line Dimensions (unit: mm) Model SCAG115H 4225 2300 2460 3940 Foundation of SCAG115H 6*φ14 ⑥ Spring isolator installation hole ⑦...
Page 11: Dimensions Of Scag135H
3 Dimensions Dimensions (unit: mm) Model SCAG115H 4225 2300 2180 1670 1200 Models of spring isolators at all points Model SCAG115H MHD-850 MHD-850 MHD-850 Notes: 1. The spring isolator is optional. 2. The value in the spring isolator model indicates bearable weight (unit: kg); for example, "850" in "MHD-1050"...
Page 12: Dimensions Of Scag170H
3 Dimensions ⑥ Spring isolator installation hole ⑦ Electric control box ⑤ Installation foundation Dimensions (unit: mm) Model SCAG135H 4225 2300 2180 1670 1200 Models of spring isolators at all points Model SCAG135H MHD-850 MHD-850 MHD-850 Notes: 1. The spring isolator is optional. 2.
Page 13: Dimensions Of Scag195H
3 Dimensions Dimensions (unit: mm) Model SCAG170H 5055 2300 2460 4975 Foundation of SCAG170H 6*φ14 ⑥ Spring isolator installation hole ⑦ Electric control box ⑤ Installation foundation Dimensions (unit: mm) Model SCAG170H 5055 2300 2180 1165 1875 1250 Models of spring isolators at all points Model SCAG170H MHD-1050...
Page 14 3 Dimensions ① Chilled water outlet ② Chilled water inlet ③ Control panel ④ Power incoming line Dimensions (unit: mm) Model SCAG195H 6060 2300 2460 5560 Foundation of SCAG195H 6*φ14 ⑥ Spring isolator installation hole ⑦ Electric control box ⑤ Installation foundation Dimensions (unit: mm) Model SCAG195H...
Page 15: Dimensions Of Scag210H
3 Dimensions Models of spring isolators at all points Model SCAG195H MHD-850 MHD-850 MHD-850 MHD-850 Notes: 1. The spring isolator is optional. 2. The value in the spring isolator model indicates bearable weight (unit: kg); for example, "850" in "MHD-1050" indicates 850 kg.. 3.5 Dimensions of SCAG210H ①...
Page 16: Dimensions Of Scag245H
3 Dimensions Dimensions (unit: mm) Model SCAG210H 7065 2300 2180 1744 2190 1050 1320 Models of spring isolators at all points Model SCAG210H MHD-850 MHD-850 MHD-850 MHD-850 Notes: 1. The spring isolator is optional. 2. The value in the spring isolator model indicates bearable weight (unit: kg); for example, "850" in "MHD-850"...
Page 17: Dimensions Of Scag280H
3 Dimensions 8*φ14 ⑥ Spring isolator installation hole ⑦ Electric control box ⑤ Installation foundation Dimensions (unit: mm) Model SCAG245H 6835 2300 2180 1290 2210 1370 1200 Models of spring isolators at all points Model SCAG245H MHD-1050 MHD-1050 MHD-1050 MHD-1050 Notes: 1.
Page 18: Dimensions Of Scag295H
3 Dimensions Dimensions (unit: mm) Model SCAG280H 7840 2300 2460 6650 Foundation of SCAG280H ⑥ Spring isolator installation hole ⑦ Electric control box ⑤ Installation foundation Dimensions (unit: mm) Model SCAG280H 7840 2300 2180 1050 1895 1680 1250 1200 Models of spring isolators at all points Model SCAG280H MHD-850...
Page 19: Dimensions Of Scag335H
3 Dimensions Dimensions (unit: mm) Model SCAG295H 8865 2300 2460 6320 Foundation of SCAG295H 12*φ14 ⑥ Spring isolator installation hole ⑦ Electric control box ⑤ Installation foundation Dimensions (unit: mm) Model SCAG295H 8865 2300 2180 1360 1175 1410 1740 1200 1140 Models of spring isolators at all points Model...
Page 20: Dimensions Of Scag380H、Scag420H
3 Dimensions Dimensions (unit: mm) Model SCAG335H 9870 2300 2460 6320 Foundation of SCAG335H 12*φ14 ⑥ Spring isolator installation hole ⑦ Electric control box ⑤ Installation foundation Dimensions (unit: mm) Model SCAG335H 9870 2300 2180 1875 1440 1155 1970 1450 1165 Models of spring isolators at all points Model...
Page 21: Dimensions Of Scag480H
3 Dimensions Dimensions (unit: mm) Model SCAG380H 10875 2300 2460 7370 SCAG420H Foundation of SCAG380H、SCAG420H 14*φ 14 ⑥ Spring isolator installation hole ⑦ Electric control box ⑤ Installation foundation Dimensions (unit: mm) Model SCAG380H 10875 2300 2180 1255 1140 1195 2105 1900 1200...
Page 22 3 Dimensions Dimensions (unit: mm) Model SCAG480H 11880 2300 2460 7370 Foundation of SCAG480H 14*φ 14 ⑥ Spring isolator installation hole ⑦ Electric control box ⑤ Installation foundation Dimensions (unit: mm) Model SCAG480H 11880 2300 2180 1000 1900 1600 2200 2000 1200 1200...
Page 23: Unit Installation
Such work can only be performed by qualified installers. Commissioning, operation, and maintenance shall only be carried out by professionals trained and authorized by Midea. Due to the relative pressure inside the unit, electrical components, and the installation position of the unit, be especially careful when performing any operations.
Page 24 4 Unit Installation 6. Ensure that the unit and equipment room provide fully water drainage. Because the unit requires that there is sufficient fresh air for heat exchange through the air-side heat exchanger, ensure there is enough space provided around and between units. To enable maintenance and repairs, do not store materials around the unit.
Page 25 4 Unit Installation Snow Unit Incorrect installation In monsoon regions where the fin heat exchanger will encounter monsoon conditions, air flow is like the broken line in the following figure because the air speed is higher than the air inlet speed of the fan. the condenser fins of the unit are in inverted-M shape: Figure 1: Air at the left fins that has undergone heat exchange will undergo it again at the right fins, which may adversely affect the heat exchanging effect at the right fins;...
Page 26 4 Unit Installation If the installation site is limited, multiple units can be installed in the following way and the space between units for overhaul must comply with the following figures: Horizontal placement Vertical placement...
Page 27: Foundation Construction Requirements
4 Unit Installation 4.4 Foundation Construction Requirements To prevent erosion to the unit feet, water needs to be properly drained around the unit. The plane on which the bottom steel plate of the unit is to be installed shall be smooth and flat. The following requirements must be met: 1.
Page 28: Installation Requirements
4 Unit Installation 3. Lift and installation (1) Please select the crane according to the weight of the unit (insurance recommended). (2) Hoisting shall be carried out strictly according to the method shown in the following figure. Use the wire rope to make one circle around the hook, or the wire rope could slide and pose a hazard in the event of weight imbalance.
Page 29 4 Unit Installation is 70%-90% of its rated load. See the following figure for installation method. M12 locking bolt (Figure 1) Washer Unit support M12 adjusting bolt (Figure 2) M12 adjusting bolt (Figure 3) Spring isolator body M12 fixing bolt (Figure 4) Base Unit fixing base Appearance...
Page 30: Installing The Water System
5 Installing the Water System 5 Installing the Water System 5.1 Water System Installation Requirements Installation of the water system must comply with conventional installation criteria to achieve optimal operating efficiency. Ensure that no foreign substances are present in the pipes. All water system pipes used must comply with local rules and regulations for such projects.
Page 31 5 Installing the Water System mm thick. If heat insulation measures are incomplete, heat loss may occur and the unit may be damaged by freezing in particularly cold weather. ◼ Water quality standards for the water system should be regarded as the circulating water standards, and one instance of water leakage will lead to corrosion.
Page 32 5 Installing the Water System shell-and-tube heat exchanger. 3. All the water pipelines must be rinsed thoroughly to remove foreign matter before being put into operation. Do not rinse any foreign matter into the shell-and-tube heat exchanger. 4. For the sake of convenient maintenance, install a thermometer and a pressure gauge respectively on the inlet and outlet water pipes.
Page 33: Recommended Water System
5 Installing the Water System 5.2 Recommended Water System 5.3 Water Treatment Requirements Using untreated or improper water may reduce the operating efficiency of the unit and damage the heat exchanger. If scale, corrosion, rust, algae, or stagnation occurs due to improper water use, ask a specialist for help.
Page 34 Not found Not found Reference item Ammonium (NH4+) mgNH4+/L <0.2 <1.0 Silicon dioxide mgSiO2/L <30 <50 (SiO2) ! WARNING Midea is not responsible for the corrosion, flushing, or unit performance deterioration caused by untreated water or improper water treatment.
Page 35: Electrical Installation
◆ The personnel who operate and maintain the electrical components of the unit must receive professional training and be authorized by Midea to avoid damage to the unit and injury to the personnel. ◆ Electrical component operators must comply with national/local laws and regulations.
Page 36: General Requirements For Power Supply And Environment
For any repairs, contact the maintenance center. ➢ Only use electrical components from brands and models approved by Midea. Users can apply for installation services or technical support from the manufacturer or authorized distributor.
Page 37: General Grounding Requirements
6 Electrical Installation meet the environmental requirements in the following table. Environmental conditions - operation Temperature Please refer to the “Description” part at the first page of this manual Relative humidity ≤90%, no condensing Altitude ≤ 1000m Pollution degree II (no corrosive gas and conductive dust) Environmental conditions - storage Temperature -25⁰C~55⁰C...
Page 38: General Wiring Requirements
6 Electrical Installation 6.4 General Wiring Requirements ! WARNING Do not check the power supply without proper devices or precautions. Otherwise, it will result in serious injury. Please comply with the provisions of the electricity company. ! WARNING Wiring must be conducted by personnel authorized by the company. Otherwise, it will result in damages.
Page 39: Recommended Selection Of Unit Cable
6 Electrical Installation Implement waterproofing, dustproofing, rat preventing and sealing measures on the wire inlet hole after wiring. 10) Check whether the user's power distribution panel is equipped with circuit breakers and whether the setting parameters are correct. 11) When wiring the power cable, make sure that the clearance between the energized parts and metals (current-passing or non-current-passing) is larger than or equal to 11 mm and the creepage distance is larger than or equal to 16mm.
Page 40: Water Pump Wiring
6 Electrical Installation Notes: ◼ For cable specifications of other models, refer to the maximum current value in the selection report. ◼ For low-voltage wiring, refer to GB/T 16895.6 Low-voltage Electrical Installations - Part 5-52: Selection and Erection of Electrical Equipment - Wiring Systems. Routing conditions: Cable tray routing (flat routing, i.e., horizontal placement with spacing);...
Page 41: Unit Wiring
Take waterproofing, dust proofing, and sealing measures at the power wire inlet hole after wiring. Midea is not liable for any electrical accidents caused by incorrect grounding or user negligence. The power wire...
Page 42 6 Electrical Installation The power wire connection scheme of the two-compressor unit is as shown below: Note: All inputs are passive dry contacts. The output must be switched using an intermediate relay. If the unit will not be used for a long time, turn off the main switch in the panel. When servicing the unit, disconnecting the circuit breaker of the unit and prevent closing accidentally.
Page 43 6 Electrical Installation (8) Parameters, such as operating current and input power indicated on the unit nameplate, are values tested under standard conditions. These may differ significantly from actual values due to changes in system loads and ambient temperature during actual operations. Therefore, select the power supply, transformer, cable inlet circuit breaker, cabling capacity and other devices based on extreme operating conditions.
Page 44: Unit Commissioning
7 Unit Commissioning 7 Unit Commissioning 7.1 Precautions before Commissioning 7.1.1 Water System ◼ The water pipes should be kept clean and connected in the correct direction. ◼ Check whether the inlet and outlet pipes are properly connected. ◼ Turn on the water valve. ◼...
Page 45: Commissioning Operation Procedure
7 Unit Commissioning ◼ Turn on the unit and check if the star-delta switching is normal (check if the voltage between the three contacts is 380V) (power supply to the compressor has been cut off). ◼ Check if there is a phase loss (voltage to earth for each phase should be 220 V). ◼...
Page 46: Precautions When The Unit Is Running
7 Unit Commissioning turned on. ◼ After that, check and tighten all valve caps, and clean the unit and all refrigerant system joints. 7.3 Precautions When the Unit is Running 7.3.1 Check before Unit Running 1. Judge whether the compressor refrigerant oil has been heated for enough time. The unit must be preheated for 8 hours for its first startup after power-off.
Page 47: Operation Instructions
8 Operation Instructions 8 Operation Instructions Note: The unit is equipped with the remote service module to realize global positioning and information transmission of the unit. The remote service module is capable of collecting any information but the user's personal information, including the frequency, temperature and pressure when the unit is running.
Page 48 8 Operation Instructions screen and extended communication cables is prohibited, because unit failure may occur due to the signal interference. We assume no liability or responsibility for any damage brought by or results arising thereof. Customers who require remote control can apply to us for a customized configuration. Note: Below is a stand-alone figure, which may be modified without prior notice.
Page 49: Password Interface
8 Operation Instructions 8.2.3 Password Interface Click the "Enter" button to enter the password input page, as shown in the figure below. Figure 4.2 Password interface Figure 4.3 Password input interface Enter the password 40828, and confirm by tapping ENTER on the keyboard. After that, tap "Login" to enter the main interface.
Page 50: Main Interface
8 Operation Instructions 8.2.4 Main Interface Figure 4.4 Main interface When the unit is not online-controlled, "Stand-alone" is displayed. The online mode is set by "Multi-Connection Set" in the parameter settings (do not set to online mode when there is only one unit). 4.2.4.1 Mode setting Click "MODE"...
Page 51: Power-On Operation
8 Operation Instructions mode are displayed on the main interface. Notes: 1. During operation, you can only switch the control mode and cannot select other modes. 2. The control mode is used for selecting the on/off modes. In the "Locally" mode, you can only click the "ON/OFF"...
Page 52: Status Information
8 Operation Instructions Power-on/off and status description: 1. Standby: The unit accesses the standby state in normal cases after it is powered on. 2. Running: The unit has been started up. 3. Pause: The unit enters the pause status and the compressor stops running if the control water temperature is lower than the pause temperature.
Page 53 Figure 4.8 to enter the Analog real-time data display interface, and the interface displays the real-time detection value, as shown in Figure 4.9. Figure 4.9 Real-time data display Notes: SCAG series does not involve FC/VFD Settings. 8.2.5.2 Input Status Display Figure 4.10 Input status...
Page 54 1. "Remote Start/Stop" is valid in the "REMOTE" mode. When the remote switch hardware of a jog type or the hold type is selected, you need to contact Midea after-sales department to set the jog type or the hold type.
Page 55: Parameter Setting
8.2.5.3 Output Status Display Figure 4.11 Output status "ON" indicates that the input point is closed, and "OFF" indicates that the input point is disconnected. Notes: SCAG series does not involve FC/VFD Settings 8.2.6 Parameter Setting On the main interface, click to access the User Parameters Settings interface.
Page 56 8 Operation Instructions Figure 4.12 User parameters setting interface On the interface, click to access the User Parameters Settings interface, as shown in Figure 4.13. Figure 4.13. User parameters setting Notes: 1. Set the Max of the input window to the upper limit of set parameter and Min to the lower limit of the set parameter.
Page 57: System Clock Setting
8 Operation Instructions parameters setting in the Heating mode. Definitions of Terms: 1. Cooling Target Water Outlet Temp.: target value of water temperature adjustment. 2. Temp. Differ./Exit Pause: a condition for the compressor of the unit to restart after entering the pause mode. In Cooling mode, the compressor starts only when the (water outlet) temperature is higher than (control target temperature + exit pause temperature difference).
Page 58 Note: The date and time must be set in a reasonable manner. For any consequences resulting from an unreasonable date/time setting, Midea does not shoulder any liability. 8.2.8 Serial Port Setting Interface Figure 4.16 Serial port setting BMS communication port, through which the baud rate, address, check bit can be set according to the instructions.
Page 59 8 Operation Instructions 8.2.9 Multi-Connection Set Figure 4.17 Multi-Connection Set For the Multi-Control Selection, there are two options available: "Stand-alone" or "Online". The Address can be set as 1-16, where 1# is the only multi-connection master unit. Click “Multi-Control Status” to view Figure 4.18 and Figure 4.19. Figure 4.18 Multi-connection unit display...
Page 60 8 Operation Instructions Figure 4.19 Multi-Connection serial system display "Enable", "Backup" and "Priority" can be set separately for each unit in the multi-connection system. The 9-16# addresses correspond to 1-8# series, which needs to be set according to the actual situation. By querying the n# unit, click "Enter"...
Page 61: Alarm Information
8 Operation Instructions 8.2.10 Alarm Information On the main interface, click to access the alarm query interface. Figure 4.21 Alarm information interface In the event of an alarm, the unit will perform actions according to the fault program. To debug all faults, tap to release the unit fault status.
Page 62: Timer Setting
2. The compressor overload protector cannot be automatically reset as well. Find the relevant thermal relay in the electric control panel and manually reset the protector. 3. SCAG series does not involve FC/VFD Settings 8.2.11 Timer Setting Timer setting: set the timer to on/off while in timer mode. Such timer setting is only valid when the...
Page 63 8 Operation Instructions Click to set effective Segment Click to set number the effective date of this paragraph Click to enter the power-on/off time Figure 4.23 Timer on/off Setting Interface (different units may vary) You can set eight timed periods, each of which is to be enabled with the "enable" buttons. indicates that timing is disabled, while indicates that it is enabled.
Page 64 8 Operation Instructions starting up. ② If the unit is in operating mode and the "Timer Off" of the current segment is the same as the " Timer On " of the other segments of the current day, when the set start/stop time comes, the unit will be stopped normally and will not be started again during this period of time.
Page 65: Unit Operation Precautions
3. If any unexpected situation occurs when the compressor starts, stop it using the emergency stop button on the panel. 4. The controller parameters of the EXV cannot be adjusted without the authorization of Midea's after-sales personnel; otherwise, the unit will not operate normally.
Page 66 8 Operation Instructions Cloud platform module Inside of electric control panel Customer's upper Customer's upper computer computer • communication port 2 communication port 1 Data collection port of upper computer The default baud rate, data bit, stop bit and parity bit of the customer upper computer communication port 1 are 19200, 8, 1 and N respectively.
Page 67: Fault Analysis And Troubleshooting
9 Fault Analysis and Troubleshooting 9 Fault Analysis and Troubleshooting Fault Possible Cause Solution Multi-connection Communication wire breakage Replace the communication wire. communication Slave unit is not energized Supply power to the slave unit fault The unit control circuit air switch is not closed Close the air switch Nothing on unit The emergency switch of the unit is...
Page 68 9 Fault Analysis and Troubleshooting The capacity adjusting oil supply pipeline or Clean the oil pipeline and capillary tube capillary tube of the compressor is blocked and replace the oil filter Set it according to the factory The set time for the time relay is incorrect parameters Connect the line correctly according to Contactor Prot.
Page 69 9 Fault Analysis and Troubleshooting The connected wire has gotten loose The electrical connection of the temperature (resulting in broken wire); the wire is Temperature sensor is incorrect shorted (resulting in short circuit) sensor fault The temperature sensor is faulty Replace the temperature sensor.
Page 70 9 Fault Analysis and Troubleshooting The amount of charged refrigerant is Check whether there are refrigerant insufficient leaks and add more refrigerant Some unit valves are not opened Open all the valves The drying filter is blocked Replace the drying filter core High Discharge The compressor is short of oil Add refrigerant oil...
Page 71: Daily Use And Maintenance
10 Daily Use and Maintenance 10 Daily Use and Maintenance 10.1 Overview The installation and routine servicing of air conditioning equipment must be carried out by professional technicians. Preventive maintenance is the best way to keep the unit in top condition: ◼...
Page 72 10 Daily Use and Maintenance temperature target value Ts (T1) Set gross water outlet temperature target °C 4 to 20 Set for LA unit value Ts (LA) After setting it as "On", the unit will be normally started Restart after power On/Off up if the power supply becomes available after the unit supply is available...
Page 73 For the alarm, full attention must be paid to during use. And contact Midea's after-sales personnel in time for troubleshooting.
Page 74: Regular Maintenance
◼ changing factory settings (when the working environment changes and it is necessary to change settings) ◼ moving or dismantling the unit ◼ operational interruption due to improper maintenance ◼ other faults specified in the warranty Note: Midea does not assume any liabilities for failure of the unit arising from negligence or other improper operations.
Page 75: Maintenance Items
10 Daily Use and Maintenance 10.2 Maintenance Items Maintenance Qualification Benchmark Maintenance Item Remarks Frequency (Handling Method) Observe the Noise Anytime Listen for abnormal sounds unit by standing 1 m Observe the unit body pipes and parts Vibration Anytime General in front of its for excessive amplitude center...
Page 76: Torque Of Main Fasteners
10 Daily Use and Maintenance Maintenance Qualification Benchmark Maintenance Item Remarks Frequency (Handling Method) good when it is in use Pressure Once/half a Pointer Compare it to a proper pressure gauge. gauge year Check valve Action Once/month The check valve works smoothly Use an electronic Use a leak detector to detect refrigerant...
Page 77 10 Daily Use and Maintenance Compressor junction box U/V/W/Z/X/Y U/V/W/Z/X/Y Tightening of Main Bolts Fastening position Bolt specifications Torque (N.m) Compressor suction end flange Compressor discharge end flange Condenser gas inlet pipe flange Condenser liquid outlet pipe flange Evaporator gas outlet flange Evaporator liquid inlet flange Oil separator gas inlet flange Oil separator gas outlet flange...
Page 78: Attached Table 1
Attached Table 1 Attached Table 1 Air cooled screw chiller Hazardous substances Hexavalent Polybrominated Part name Lead Mercury Cadmium Polybrominated chromium diphenyl ether (Pb) (Hg) (Cd) biphenyl (PBB) (PBDE) (Cr(VI)) Compressor and × × × × × × accessories ○ ○...
Page 79: Attached Table 2
Production date Please fill in the following content faithfully and then fax or email to Midea CAC after-sales to arrange commissioning. If onsite conditions are inconsistent with the following information, the customer shall bear the related commissioning labor and travel expenses.
Page 80 Attached Table 2 Circulating water system Yes [ ] No [ ] The circulating water pump is the correct model Yes [ ] No [ ] The water capacity of circulating water system meets the requirement _____________________ Water capacity of circulating water system (L or m Yes [ ] No [ ] The filter is installed at the water return side...
Page 81: Attached Table 3
Attached Table 3 Attached Table 3 Daily Inspection Record Table Ambient Inlet water Outlet water Discharge pressure Suction pressure Discharge Suction Date Time temperature (°C) temperature (°C) temperature (°C) (bar) (bar) temperature (°C) temperature (°C) Note: The customer needs to fill in and keep this form properly. It can be copied for use.
Page 82: Attached Table 4
Attached Table 4 Attached Table 4 Inspection Record Table of Key Parts Item Compressor Water side heat exchanger Air side heat exchanger Valves Electric control box Others Frequency Date Inspector Content Date Inspector Content Date Inspector Content Date Inspector Content Date Inspector Content Date...
Page 83: Attached Table 5
Attached Table 5 Attached Table 5 Maintenance Record Fault Description Handling Measures Handling Results Recorded by Note: Fill in this form carefully and store it properly.
Page 84: Attached Table 6
Attached Table 6 Attached Table 6 System Diagrams PRODUCT CONFIGURATION SCAG***H SHELL AND TUBE COMPRESSOR OIL LEVEL SWITCH MOTOR FILTER EXCHANGER single-compressor CAPACITY CONTROL HIGH VOLTAGE FIN TYPE HEAT THREE-WAY VALVE GLOBE VALVE SOLENOID VALVE SWITCH EXCHANGER 25% SOLENOID AMBIENT units system diagram LOW-VOLTAGE SWITCH SAFETY VALVE...
Page 85 Attached Table 6 PRODUCT CONFIGURATION OIL LEVEL SCAG***H twin- SHELL AND TUBE COMPRESSOR MOTOR FILTER EXCHANGER SWITCH CAPACITY CONTROL FIN TYPE HEAT THREE-WAY VALVE GLOBE VALVE compressor units HIGH VOLTAGE SWITCH SOLENOID VALVE EXCHANGER 25% SOLENOID CAPILLARY AMBIENT TEMPERATURE SAFETY VALVE LOW-VOLTAGE SWITCH system diagram VALVE...
Page 86 SCAG**H.SM 16127200022357 Chongqing Midea-General Refrigeration Equipment Co., Ltd. Add.: No.15, Qiangwei Road, Nan'an District, Chongqing, China Tel: +86-757-26338266 mbt.midea.com www.midea-group.com Email: service@midea.com...

This manual is also suitable for:

Scag115h Scag135h Scag170h Scag195h Scag210h Scag245h ... Show all