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User Manual
XRow Series Air Conditioner
SHENZHEN ENVICOOL TECHNOLOGY CO., LTD.

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Summary of Contents for Envicool XRow Series

  • Page 1 User Manual XRow Series Air Conditioner SHENZHEN ENVICOOL TECHNOLOGY CO., LTD.
  • Page 2 Notice The purchased products, services and features are stipulated by the contract made between Envicool and the customer. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements,information, and recommendations in this document are provided "AS IS"...
  • Page 3: Table Of Contents

    1.5.7 Low temperature components (optional)................5 Chapter 2 Onsite Preparation and Installation...................6 2.1 Precautions for installation......................6 2.1.1 Storage and operation environment requirements of XRow series row air conditioner.. 6 2.1.2 Arrival inspection......................7 2.2 Mechanical parameters......................... 7 2.2.1 Outline dimensions......................8 2.2.2 Installation and maintenance space requirements............12...
  • Page 4 2.5.2 Refrigerant connecting copper pipe................28 2.5.3 Refrigerant charge......................30 2.5.4 Add refrigerating oil......................30 2.5.5 Connection of the water supply pipe of the humidifier (optional)......... 32 2.5.6 Removal of compressor footer holder................32 2.6 Electric connection........................33 2.6.1 Indoor unit power cable connection................35 2.6.2 Outdoor unit power cable connection................
  • Page 5 6.2.4 Cooling system........................ 64 6.2.5 Humidifier........................66 Chapter 7 Maintenance inspection checklist...................68 Chapter 8 Troubleshooting........................69 Thanks for buying Envicool products!  In the process of use, this manual fails to be updated due to the updated drawings, leading to the fact ...
  • Page 6: Chapter 1 Overview

    Date Center. Model description For the model description of the indoor units and outdoor units of the XRow series row air conditioners, please refer to Table 1-1 and Table 1-2 respectively. Table 1-1 Model description of the indoor units of XRow series air conditioners...
  • Page 7: Product Description And Function Introduction

    Large cooling capacity Product description and function introduction XRow series row air conditioner is mainly used for environment control of the server racks in various data centers and it is specially designed to solve problem of high thermal density. It is available in various refrigerating outputs, and can be flexibly configured according to the actual demand of customers.
  • Page 8: Control Panel

    1.4.4 IF pump cabinet IF pump cabinet is installed outdoors, including liquid reservoir, refrigerant pump, electrical components, etc. 1.4.5 System diagram XRow series air conditioning unit includes the compressor system.The overall layout of the system is shown in Figure 1-1~Figure 1-2.
  • Page 9: Technical Performance And Safety Function Of Unit System

    Shenzhen Envicool Technology Co., Ltd. Fig. 1-1 System diagram of direct expansion unit Fig. 1-2 System diagram of direct expansion unit (with pump cabinet) 1.4.6 Technical performance and safety function of unit system Unit System adopts inverter compressor and fluorine pump control logic which can alternative the cooling capacity according to the temperature difference between the inside &...
  • Page 10: Selectable Device

    Shenzhen Envicool Technology Co., Ltd. Under system normal operation state, the system itself has the function of protecting the safety of the system, such as high and low pressure protection, over heat protection and so on. System high pressure is likely to lead to system broken or device failure. Therefore the unit system through high pressure pressure sensor, monitoring the pressure status, when the system is in high pressure, occur the alarm, shut down the system.
  • Page 11: Chapter 2 Onsite Preparation And Installation

    2.1.1 Storage and operation environment requirements of XRow series row air conditioner For the storage and operation environment requirements of the XRow series air conditioner, please refer to Table 2-1 and Table 2-2. Table 2-1 Storage environment requirement Item...
  • Page 12: Arrival Inspection

    Shenzhen Envicool Technology Co., Ltd. Table 2-2 Operation environment requirement Item Requirement Indoor unit: vertical installation; Outdoor unit: vertical installation; Refrigerant pump: Installation mode vertical installation Connecting pipe length The longest horizontal pipeline length of XRow unit: 60m The outdoor unit is above the indoor unit (positive drop), the nominal maximum height difference: 30m, the nominal maximum pipe equivalent length: 60m;...
  • Page 13: Outline Dimensions

    Shenzhen Envicool Technology Co., Ltd. 2.2.1 Outline dimensions  For the outline dimensions of the unit, please refer to Fig.2-1 and Table 2-3. Fig. 2-1 Schematic diagram of the overall dimensions of the indoor unit Table 2-3 Dimensions of the indoor unit (unit: mm) 机型...
  • Page 14 Shenzhen Envicool Technology Co., Ltd.  For the dimensions of the outdoor unit, please refer to Figure 2-2,Figure 2-3 and Table 2-4. Fig. 2-2 Schematic diagram of the outline dimensions of a single fan outdoor unit Fig. 2-3 Schematic diagram of the outline dimensions of the dual fan outdoor unit...
  • Page 15 Shenzhen Envicool Technology Co., Ltd. Model Fans CS78 2410 2230 2130 1269 1220 1120 1099 2240 CS86 2410 2230 2130 1269 1220 1120 1136 2240 Fig. 2-4 V-type condenser dimensions Table 2-5 V-type condenser dimensions (unit: mm) Model CS38U 1020...
  • Page 16 Shenzhen Envicool Technology Co., Ltd. Table 2-5 Dimensions of V-type condenser with pump cabinet (unit: mm) Model CS38P 1020 1020 1840 CS46P 1020 1020 1840 CS54P 1020 1020 1840 CS66P 1080 1080 2000 CS78P 1080 1080 2000 CS86P 1080 1080...
  • Page 17: Installation And Maintenance Space Requirements

    As for installation and maintenance space size requirements of the XRow system indoor unit,  please refer to Figure 2-7. Notes:  XRow series indoor unit installation and maintenance space diagram is for reference only, the installation shall prevail in kind.
  • Page 18 Shenzhen Envicool Technology Co., Ltd. Fig. 2-7 Schematic diagram of installation and maintenance space of XRow series inter-row air conditioner indoor unit CS/CD series air conditioner can be Horizontal Mounted and Side Mounted,installation and  maintenance space are refered in Fig.2-8~Fig.2-12 and Table 2-8.
  • Page 19 Shenzhen Envicool Technology Co., Ltd. Fig. 2-9 Schematic diagram of the installation and maintenance space on the front of the dual-fan outdoor unit Fig. 2-10 Schematic diagram of installation and maintenance space on the side of a single fan outdoor unit Fig.
  • Page 20 Shenzhen Envicool Technology Co., Ltd. Fig. 2-12 Schematic diagram of V-shaped condenser installation and maintenance space Table 2-8 Schematic diagram for the installation and maintenance space of the outdoor unit of the CS series air conditioner(Unit:mm) Model CS38/CS46/CS54/CS66/CS78/CS86 ≥4000 CS38U/CS46U/CS54U/CS66U/CS78U/CS86 ≥4000...
  • Page 21 Shenzhen Envicool Technology Co., Ltd. Fig. 2-13 Side-by-side installation layout Fig. 2-14 Scattered installation space Table 2-10 Scattered installation size table Number of condensers installed separately 30 ~ 50 Model CS38U 1200 1500 1500 CS46U 1200 1500 1500 CS54U 1200...
  • Page 22 Shenzhen Envicool Technology Co., Ltd. Less than 30 condensers are installed separately Model CS38U 1200 1200 1200 CS46U 1200 1200 1200 CS54U 1200 1200 1200 CS66U 1200 1200 1200 CS78U 1200 1200 1200 CS86U 1200 1200 1200 Notes:  The condenser spacing in the picture requires the height of the surrounding wall without railings h≤0.5m.
  • Page 23 Shenzhen Envicool Technology Co., Ltd. Table 2-11 Central installation size chart Number of condensers installed separately 30 ~ 50 Model CS38U 1500 1800 CS46U 1500 1800 CS54U 1500 1800 CS66U 1500 1800 CS78U 1500 1800 CS86U 1500 1800 Less than 30 condensers are installed separately...
  • Page 24 Shenzhen Envicool Technology Co., Ltd. The space requirements for installation and maintenance of XRow series inter-row  air-conditioning pump cabinet units are shown in Figure 2-16. Fig. 2-15 Schematic diagram for the installation and maintenance space of the IF pump...
  • Page 25 Shenzhen Envicool Technology Co., Ltd.  The package size and gross weight of different models are listed in Table 2-12~ Table 2-14 Indoor unit packaging size and gross weight Table 2-12 Model Package size (L×W×H, mm) Gross weight (kg) Remarks 1000(1136)...
  • Page 26 Shenzhen Envicool Technology Co., Ltd. Table 2-13 Outdoor unit packaging size and gross weight Gross weight Model Package size (L×W×H, mm) (kg) See packaging CS38 1790×755×1185 See packaging CS46 1790×755×1500 See packaging CS54 2090×755×1500 See packaging CS66 2090×755×1500 See packaging CS78 2590×755×1500...
  • Page 27: Installation Of Indoor/Outdoor Unit

    Shenzhen Envicool Technology Co., Ltd. Installation of indoor/outdoor unit 2.3.1 Fixing of indoor unit / IF pump cabinet Remove the indoor unit/pump cabinet case and transport pallet, and move the unit to the installation site. The indoor unit is reliably fixed on the indoor floor through the foot cup and is leveled.
  • Page 28: System Installation Diagram

    Shenzhen Envicool Technology Co., Ltd. Cation:  1. The low-temperature components are filled with part of the refrigerant at the factory, and the ball valve should be covered with a damp cloth when welding. 2. The cryogenic component is equipped with a liquid storage tank, and the liquid level of the sight glass should be checked when filling the refrigerant, and the liquid level can reach half of the sight glass.
  • Page 29 Shenzhen Envicool Technology Co., Ltd. consult the air conditioning equipment company. If you need to install a solenoid valve, but it is not installed inside the air-conditioning equipment when leaving the factory, please find the solenoid valve to be installed in the delivery accessories. If you do not find it, please contact the air-conditioning equipment company.
  • Page 30 Shenzhen Envicool Technology Co., Ltd. 10. Note that after the bypass filter assembly is welded in the system, close the ball valve first, and keep the ball valve closed during debugging, so that the refrigerant in the system will pass through the filter to filter out most of the impurities in the system.
  • Page 31 Shenzhen Envicool Technology Co., Ltd. Fig. 2-19 Installation drawing (when the IF outdoor unit is higher than the indoor unit) Fig. 2-20 Installation drawing (when the condenser is lower than the indoor unit)
  • Page 32: Pipe Connection And Refrigerant Requirement

    Shenzhen Envicool Technology Co., Ltd. Fig. 2-21 Installation drawing (when the IF outdoor unit is lower than the indoor unit) Pipe connection and refrigerant requirement The pipes to be connected are as follows: 1. The water drainage pipe of indoor unit.
  • Page 33: Refrigerant Connecting Copper Pipe

    Shenzhen Envicool Technology Co., Ltd. Note  For the unit configured with humidifier, the material of its external water drainage pipe shall be able to withstand high temperature up to 100ºC. It is recommended to adopt galvanized steel pipe, hot water type aluminum-plastic composite pipe or hot water type PPR pipe.
  • Page 34 Shenzhen Envicool Technology Co., Ltd. Table 2-15Connecting pipes specifications of the XRow system(0m drop height) Model Length(m) Gas(mm) XR023A Liquid(mm) Gas(mm) XR040A Liquid(mm) Gas(mm) XR050A Liquid(mm) The indoor unit is equipped with a ball valve on the connecting side. The connection of the ball valve is shown in Figure 2-22.
  • Page 35: Refrigerant Charge

    Shenzhen Envicool Technology Co., Ltd. 5、The pressure leakage inspection and vacuum-pumping operation are passed, then proceed the next step(such as: the refrigeration line for support, and the refrigerant pipes shall be isolated from the building with the vibration-proof isolation frame.).
  • Page 36 Shenzhen Envicool Technology Co., Ltd. The type of refrigerating oil varies from compressor to compressor, please consult the equipment company for details, and replenishing refrigerating oil requires a dedicated oil pump for pressure. At the site, the negative pressure in the unit can be used to replenish the refrigerating oil through the pressure gauge before the unit is charged with refrigerant and after a certain vacuum.
  • Page 37: Connection Of The Water Supply Pipe Of The Humidifier (Optional)

    Shenzhen Envicool Technology Co., Ltd. 2.5.5 Connection of the water supply pipe of the humidifier (optional) The unit provides a quick connector for the water supply pipe (1/2" GAS female thread) of the humidifier. The users are suggested to install the cut-off valve and water supply filter for the water supply pipe to isolate the humidifier during the maintenance.
  • Page 38: Electric Connection

    Shenzhen Envicool Technology Co., Ltd. Electric connection Note  1. The number of compressor fixed pieces depends on the size of the compressor. 2. The unit has high voltage. The power supply must be cut off before any troubleshooting is conducted inside the unit.
  • Page 39 Shenzhen Envicool Technology Co., Ltd. Each model cables diameters (indoor, outdoor units and refrigerant pump) are shown as the Table 2-17 and Table 2-18. Table 2-17 Diameter of power cord of each model unit Cable diameter of power cable of...
  • Page 40: Indoor Unit Power Cable Connection

    Shenzhen Envicool Technology Co., Ltd. Table 2-18 Optional ammeters for power-off switches of power distribution cabinets of various types of units Model Optional current value (A) Indoor unit Cooling XR023A Cooling and heating Cooling, heating and humidifying Cooling XR040A Cooling and heating...
  • Page 41: Outdoor Unit Power Cable Connection

    Shenzhen Envicool Technology Co., Ltd. Fig. 2-24 Schematic diagram of the electrical connection of the indoor unit  Notes 1、 The electric control box of XR023A is drawable. In order to facilitate the subsequent pulling and maintenance of the electric control box, an extra 0.45~0.5m should be reserved for connecting the power cord, which can be fixed on the top of the electric control box with a wire buckle.
  • Page 42: If Pump Cabinet Cable Connection

    Shenzhen Envicool Technology Co., Ltd. 2.6.3 IF pump cabinet cable connection The pump cabinet needs to be connected to the power line and the communication line: The power cord is powered from the indoor unit or the outdoor electromechanical control box, using a three-phase power supply, and the input power is connected to the pump cabinet air switch.
  • Page 43: Unit Function Output

    Fig. 2-26 Schematic diagram of electrical connection of cryogenic components  Notes The schematic diagram of control line connection of XRow series is for reference only and the dedicated wiring diagram pasted on the unit shall prevail in terms of installation. 2.6.5 Unit function output The location of the XR series unit control interface is shown in Figure 2-27.
  • Page 44 Shenzhen Envicool Technology Co., Ltd. Fig. 2-27 XR control interface diagram 2.6.5.1 Communication between indoor unit and host computer The unit can communicate with the host computer through the RS485 interface. It is recommended to use twisted-pair shielded cables for communication cables, and the cable diameter is not less than 2×...
  • Page 45 Shenzhen Envicool Technology Co., Ltd. Figure 2-28 Schematic diagram of the communication connection between the indoor unit and the host computer 2.6.5.2 Unit-to-unit communication It is recommended that the communication cables between the units use twisted-pair shielded cables with a cable diameter not less than 2×0.5 mm2. The wiring diagram is shown in Figure 2-29.
  • Page 46 Shenzhen Envicool Technology Co., Ltd. disconnected, the unit is stopped. When the unit leaves the factory, it is connected by short wiring at the 5/6 position of the terminal block as shown in Figure 2-30. Figure 2-29 Remote switch machine (active) wiring diagram The remote switch on/off is an active signal.
  • Page 47 Shenzhen Envicool Technology Co., Ltd. 2.6.5.5 Outdoor unit communication The unit can communicate with the outdoor unit through the RS485 interface. It is recommended to use twisted-pair shielded cables for communication cables, and the cable diameter is not less than 2× 0.5 mm2. The wiring diagram is shown in Figure 2-31.
  • Page 48 Shenzhen Envicool Technology Co., Ltd. Figure 2-32 Wiring diagram of temperature and humidity sensor 2.6.5.7 Indoor unit communication The outdoor unit can communicate with the indoor unit through the RS485 interface. It is recommended to use twisted-pair shielded cables for communication cables with a cable diameter of 2×0.5 mm2.
  • Page 49 Shenzhen Envicool Technology Co., Ltd. Figure 2-24 Schematic diagram of solenoid valve wiring for cryogenic components 2.6.5.9 Liquid pipe solenoid valve communication (optional) The liquid pipe solenoid valve control line is connected from the X3/X4 terminal in the room, and the wiring diagram is shown in 2-25.
  • Page 50: Items For Verification When The Installation Is Completed (Checklist)

    Shenzhen Envicool Technology Co., Ltd. Figure 2-25 Schematic diagram of liquid pipe solenoid valve wiring Notes  1. It is recommended to use shielded wire for the connecting wire, and the shielded wire must be grounded. The operating environment should be free of conductive dust, metal corrosive and insulating gas.
  • Page 51 Shenzhen Envicool Technology Co., Ltd. The ball valves on the indoor unit are all open. The drain pipe is connected. The water supply pipe to the humidifier is connected. All pipe joints are fastened. The pressing plate of the press has been removed.
  • Page 52: Chapter 3 Controller

    Shenzhen Envicool Technology Co., Ltd. Chapter 3 Controller The XRow series indoor unit is equipped with a controller. The control layout is displayed by a touch screen, and parameter settings are made through the touch screen. The display screen is used to display the temperature, relative humidity, system operation, set values and alarms.
  • Page 53: System Initialization Interface

    Shenzhen Envicool Technology Co., Ltd. 3.2.2 System initialization interface. After startup, the system will be initialized for 10s and then enter the normal display interface. In case of system power cycle, the system will automatically enter the state before power down.
  • Page 54: Password Input Interface

    Shenzhen Envicool Technology Co., Ltd. 3.2.3 Password input interface The default password is "0001", the user can change the temperature ,humidity and alarm set point, check the alarm recording, alarm history and system status. 3.2.4 Normal display interface Press the Home button to enter the main menu, which includes the following contents:...
  • Page 55: System Time Setting

    Shenzhen Envicool Technology Co., Ltd. System settings, temperature and humidity curve, operating records, historical alarm records and operating status. The home page interface displays the current and set values of the current indoor return air temperature, current and set values of indoor humidity. Press the corresponding button on the home page to enter the corresponding interface.
  • Page 56: Parameter Setting

    Shenzhen Envicool Technology Co., Ltd. 3.2.6 Parameter Setting After entering the device parameter settings interface, the temperature and humidity of the environment can be set up according to user needs, and at the same time, the monitoring address, high and low temperature alarm, high and low humidity alarm set values and other...
  • Page 57: System Status

    Shenzhen Envicool Technology Co., Ltd. Click “ ” on any interface to enter this interface. 3.2.7 System status In this interface, you can check the operating status of the system and the status of the environment; Click “ ” on any interface to enter this interface.
  • Page 58: Active Alarm

    Shenzhen Envicool Technology Co., Ltd. 3.2.8 Active alarm This menu shows the alarm of the active activity. The active alarm is numbered, and the latest alarm always appears first. The time when the alarm occurred is also recorded and displayed.
  • Page 59: Historical Alarm

    Shenzhen Envicool Technology Co., Ltd. 3.2.9 Historical alarm Through the historical alarm, you can check the contents of the historical alarm and the time to cancel the alarm. Click “ ” on any interface to enter Alarm interface.Click “Alarm History” on the top of the interface to enter this interface.
  • Page 60: Shutdown Interface

    Shenzhen Envicool Technology Co., Ltd. 3.2.11 Shutdown interface Select the “ ” button, “Sure to Power Off” appears, and if you need to shut down, click “OK”.
  • Page 61: Chapter 4 System Operation

    Shenzhen Envicool Technology Co., Ltd. Chapter 4 System Operation This chapter elaborates on how the XRow series air conditioners operate in accordance with the operation control of the operator and the indoor temperature and humidity status. Temperature control 4.1.1 Cooling/Reheating The microprocessor carries out the temperature control according to the cooling/reheating requirements calculated based on the difference between the return air temperature and the set value.
  • Page 62: System Protection

    Shenzhen Envicool Technology Co., Ltd. System protection To protect the compressor and avoid frequent power-on/off cycle of the compressor, the compressor shall be restarted three minutes after its interrupted operation. Communication The control system uses RS232 / 485 interface to communicate with the equipment through the general electrical protocol.
  • Page 63: Chapter 5 Alarm

    Shenzhen Envicool Technology Co., Ltd. Chapter 5 Alarm The control system can display the alarm information. The special alarms can be selected through the optional alarm list. The alarm will automatically reset after removed. Alarm: interpretation & troubleshooting The following contents introduce the possible causes for each alarm and explain the methods of troubleshooting.
  • Page 64: Fan Failure

    Shenzhen Envicool Technology Co., Ltd. Table 5-1 High and low pressure protection value of the refrigeration system of the compressor Compressor high Compressor low Refrigerant pressure protection pressure protection model value value R410A 4.0MPa 0.25MPa 2.7MPa 0.15MPa R134a 2.7MPa 0.15MPa R407C 2.7MPa...
  • Page 65: Power Supply

    Shenzhen Envicool Technology Co., Ltd. contactors, heaters, etc). Check whether the working current of the heater is appropriate (refer to the current ratings on the nameplate of the equipment). 5.1.6 Power supply The power supply alarm will be triggered under the following situations: Overvoltage alarm: it alarms when the grid voltage of the equipment is higher than the input voltage range.
  • Page 66: Chapter 6 System Testing And Maintenance

    Shenzhen Envicool Technology Co., Ltd. Chapter 6 System testing and maintenance This chapter details the control and operation of XRow series air conditioner.  Warning The equipment is equipped with high voltage. Turn off the power supply before checking the inside part of the equipment.
  • Page 67: Shut Down Via Remote Control

    Shenzhen Envicool Technology Co., Ltd. 6.1.5 Shut down via remote control Users can switch on and off remotely through the touch screen switch key, remote power on / off dry contact, or through the communication port RS232 / 485. Maintenance 6.2.1 Circuit board...
  • Page 68: Fan

    Figure 6-1 Schematic diagram of air filter maintenance Notes  The schematic diagram of installation and maintenance of the air filter of XRow series indoor unit is for reference only, and as for installation, material objects shall prevail. 6.2.3 Fan The fan components to be checked every month include the fan blades and motor.
  • Page 69: Cooling System

    Shenzhen Envicool Technology Co., Ltd. Airflow The equipment of all models is designed to discharge abundance of air uninterruptedly, so any abnormal airflow block near the indoor and outdoor units should be removed at once. 6.2.4 Cooling system The components of the cooling system should be checked every month to see if there are faults or worn down components.
  • Page 70 (in accordance with the after-sales service). If the compressor to be replaced is under warranty, it shall be sent back to Envicool to get warranty service. The compressor should be placed in its original packaging box used when it is purchased.
  • Page 71: Humidifier

    Shenzhen Envicool Technology Co., Ltd. c) Recycle the refrigerant with standard steps and equipments.  Note Refrigerant recovery or recycling must comply with the state and local laws and regulations. 1. Remove the damaged compressor. 2. Sweep the entire system with clean nitrogen, clean the entire refrigeration system with a cleaning agent if pipes contain a lot of black impurities.
  • Page 72 Shenzhen Envicool Technology Co., Ltd. Pull out the steam transferring pipe on the humidifying container. Rive the power connecting cables of the main electrode. Pull out the connecting cable of the detector of high water level. Loosen the fixing belt on the humidifying container, and lift up the container to remove Fix the new humidifying container, and connect the steam transferring pipe.
  • Page 73: Chapter 7 Maintenance Inspection Checklist

    Shenzhen Envicool Technology Co., Ltd. Chapter 7 Maintenance inspection checklist XRow series Date:________________________Defender:__________________________ model:______________________NO:_______________________________ Maintenance Project Quarterly Component Maintenance work Air filter Clean filter. Check and clean up equipment drain. Check and clean up the condensed water. Cooling Check high and low pressure of system.
  • Page 74: Chapter 8 Troubleshooting

    Shenzhen Envicool Technology Co., Ltd. Chapter 8 Troubleshooting Failures Causes Check or maintenance The equipment is not connected to Check the voltage of air switch of the unit. power supply. Check whether the cable of remote startup and equipment Remote startup and shutdown positions...
  • Page 75 Turn off the power. Check the heating element The component is burned out. with an ohmmeter. Temperature sensor has failed. Replace with a new temperature sensor. Shenzhen Envicool Technology Co.,Ltd. 50011075 Tel:+86(755)-29588896 Fax:+86(755)-29588895 Service Hotline:400-188-8966 Http: www.envicool.com Mail:info@envicool.com...

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