KStar FocusAir FS020F Instruction Manual

Precision air conditioner

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Foreword——About the Products and Manual
[To the Users]
My honorific users, we are glad that you choose the KSTAR FocusAir Precision Air
Conditioner. Before using products, please make sure to read the manual in detail. The
Proper operation is necessary to reach longer life and reliability.
[Products Guarantee]
The products can be guaranteed by the guarantee card or contract.
[Clause of Irresponsibility]
1. Beyond the period of free guarantee.
2. Disassembly or maintenance privately without the manufacturer's permission
3. Violation of the products manipulation.
4. Man-made malfunction.
5.
The breakdown caused by the irresistible or other adventitious causation in
operation.
[Notice: the breakdown caused by any one of the clauses above was not our obligation.]
[Customer Service]
Kstar will provide the overall technical guidance for the customer, you can contact with
the nearby Kstar offices or customer service center.
[Contacts Us]
Customer Support Tel: 400-700-9662
Http://www.kstar.com.cn
[Remark]
1. The manual provided together with FocusAir Precision Air Conditioner, please keep
it in safety. So that you can read it at any time in need. If the manual is lost or damaged,
please contact the manufacturer.
2. This manual is written for the DX air cooled FocusAir Precision Air Conditioner, the
content may not be suitable for the other models.
3. The copyright of this manual belongs to Shenzhen Kstar Science & Technology Co.,
Ltd. All rights are reserved without notice.

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Summary of Contents for KStar FocusAir FS020F

  • Page 1 Foreword——About the Products and Manual [To the Users] My honorific users, we are glad that you choose the KSTAR FocusAir Precision Air Conditioner. Before using products, please make sure to read the manual in detail. The Proper operation is necessary to reach longer life and reliability.
  • Page 2: Table Of Contents

    Contents Products Summary..................... 1 §1-1 Introduction ............................1 §1-2 Working Environment ........................1 §1-3 Model Description ..........................2 §1-4 Components of System ........................2 §1-5 Products Specifications ........................3 Reception........................11 §2-1 Transportation ........................... 11 §2-2 Reception ............................11 Preparation for Installation..................15 §3-1 Installation Site ..........................
  • Page 3 §5-6 Logic and Set Point of Temperature ..................33 §5-7 Logic and set of humidity ......................34 Inspection and Debugging..................36 §6-1 Inspection ............................36 §6-2 Vacuum Pumping and Refrigerant Charging ................. 37 §6-3 Adding Lubricating Oil ........................38 §6-4 Function Inspection ......................... 39 §6-5 Debugging ............................
  • Page 4: Products Summary

    FocusAir Precision Air Conditioner Products Summary Summary—this chapter mainly introduces the product, model description, working environment, control parameters, composition of system, product specification and module assembly. §1-1 Introduction About the Products FocusAir precision air conditioners are the new-style high efficiency and energy saving precision environmental control system with the advanced and reliable technology, which are suitable for the telecommunication data centers, IDC centers and data processing rooms, finance security data centers, large IT enterprise data centers and other places.
  • Page 5: Model Description

    FocusAir Precision Air Conditioner Working Environment Table1-1 Items Indoor Outdoor Air-cooled: -15℃~+45℃; Temp. t 17℃~40℃ Water-cooled: 4℃~40℃ Parameters Humidity % 20%~80%RH —— Altitude No more than 1000m, or else be used by reducing rating. Requirements Power Voltage 380V±10%, Frequency 50Hz±2Hz §1-3 Model Description For example: model- FS040FAACENNES FS 040 F...
  • Page 6: Products Specifications

    FocusAir Precision Air Conditioner high reliability, long life and variable cooling capacity output, etc. 2. Evaporator- Inclined piece type evaporator makes thermal transmission faster and more efficient. 3. Expansion valve- EEV senses the temperature and pressure signal, which accurately regulates the refrigerant flow. 4.
  • Page 7 FocusAir Precision Air Conditioner Figure 1-2 300mm Front discharge Figure 1-3 300mm Side discharge...
  • Page 8 FocusAir Precision Air Conditioner Figure 1-4 400mm Front discharge Figure 1-5 400mm Side discharge...
  • Page 9 FocusAir Precision Air Conditioner Figure 1-6 600mm Front discharge Figure 1-7 600mm Side discharge...
  • Page 10 FocusAir Precision Air Conditioner Table 1-3 Other Related Dimensions of the Units Specifications Models H2(mm) W2(mm) H3(mm) W3(mm) D2(mm) 300mm Front discharge FS020F 1923 1868 300mm Side discharge FS020S/L/R 1904 1868 400mm Front discharge FS025F 1893 1844 400mm Side discharge FS025S/L/R 1904 1844...
  • Page 11 FocusAir Precision Air Conditioner Front Rear Figure 1-9 Dimensions of the Top Panel and Bottom Panel in 300mm front discharge unit (Left- Top Panel; Right- Bottom Panel) Front Rear Figure 1-10 Dimensions of the Top Panel and Bottom Panel in 300mm side discharge unit (Left- Top Panel; Right- Bottom Panel)
  • Page 12 FocusAir Precision Air Conditioner Front Rear Figure 1-11 Dimensions of the Top Panel and Bottom Panel in 400mm front discharge unit (Left- Top Panel; Right- Bottom Panel) Front Rear Figure 1-12 Dimensions of the Top Panel and Bottom Panel in 400mm side discharge unit (Left- Top Panel; Right- Bottom Panel)
  • Page 13 FocusAir Precision Air Conditioner Front Rear Figure 1-13 Dimensions of the Top Panel and Bottom Panel in 600mm front discharge unit (Left- Top Panel; Right- Bottom Panel) Front Rear Figure 1-14 Dimensions of the Top Panel and Bottom Panel in 600mm side discharge unit (Left- Top Panel; Right- Bottom Panel) Note: The view from top to bottom...
  • Page 14: Reception

    FocusAir Precision Air Conditioner Reception Summary—this chapter mainly introduces the processes and related issues of transportation, handling and reception for the units. §2-1 Transportation About the Units FocusAir precision air conditioners comprise the mechanical and electrical equipments. Any mistake in the shipping and handling will cause damage to the units and make them abnormal, please be careful.
  • Page 15: Process Flow Chart

    FocusAir Precision Air Conditioner 1. Suggestion of Reception The receiving process is shown below. Process Flow Chart Receiving process simulates in figure 2-1, the specific content of each step consults this section. Figure 2-1 Sketch Map of the Receiving Process Simulation The chart shows the receiving process of condition A and B.
  • Page 16: Appearance Inspection

    2. If you find any damage, please indicate the damage on the bill of lading, and submit the damage claim to the shipping company. 3. Any issue above will cause the damage to the units, and make them abnormal, please check out carefully. If you have problems, please contact KSTAR technical service department. 3. Unpacking Suggestion 1.
  • Page 17 FocusAir Precision Air Conditioner 1. If there is any part missing or damaged, please contact with the carrier and the product suppliers immediately. 2. If you find that the packing list is not complete, please contact with the relevant personnel immediately.
  • Page 18: Preparation For Installation

    FocusAir Precision Air Conditioner Preparation for Installation Summary—this chapter mainly introduces the preparation before installation of the units; the contents include the preparation of the installation site and installed location. §3-1 Installation Site In order to install and operate in the best condition, make sure that the installation site meets the requirements.
  • Page 19: Water Supply And Drainage

    FocusAir Precision Air Conditioner 1. The power of the units is three phase. 2. The power must comply with the national/ regional standards. 3. The units must be grounded. 4. The power must meet the maximum demand of the units. §3-5 Water Supply and Drainage FocusAir precision air conditioners need water supply and drainage.
  • Page 20: Installation

    FocusAir Precision Air Conditioner Installation Summary—this chapter mainly introduces the installation forms of system, the mechanical and electrical installation of the indoor unit. §4-1 Forms of Installation The compressors are installed in the indoor unit of the FocusAir precision air conditioner. Take the compressor for base, the system installation forms are divided into positive fall and negative fall (the negative fall only applies to the air-cooled units).
  • Page 21: Dimensions Of The Pipelines

    4-4. When the equivalent length of the pipelines more than 30m, it needs to increase the extended components, please consult Kstar Science & Technology Co., Ltd. Figure 4-1 Sketch Map of the Positive Fall Installation...
  • Page 22 FocusAir Precision Air Conditioner Figure 4-2 Sketch Map of the Negative Fall Installation Table 4-2 Marks of the Installation Sketch Map 4-1 Sketch Map of the Positive Fall Installation Marks Reserved Liquid Outlet Water MAX.20m 5~6m Storage Drainage Bend Flow Flow Pipe Tilt Supply...
  • Page 23: Mechanical Installation

    FocusAir Precision Air Conditioner Table 4-3 Equivalent Length of the Local Assemblies Equivalent Length(m) Outer Diameter of 90° Elbow 45° Elbow T Type Tee Liquid Pipeline 3/8″ 0.21 0.10 0.76 1/2″ 0.24 0.12 0.76 5/8″ 0.27 0.15 0.76 3/4″ 0.30 0.18 0.76 7/8″...
  • Page 24: Thermal Insulation

    If the conductivity of your local water goes beyond the range showed in section 3-4, please contact the Kstar technical department, and choose the proper humidifier according to your need.
  • Page 25: Connection Operation

    FocusAir Precision Air Conditioner 3. Please do protection to the insulation pipes. Connection Operation 1. It should ensure the internal of the pipes and fittings dry and clean before constructing. 2. It should use the high pressure nitrogen gas (0.03MPa) for protection in the welding, using the right tools and solders.
  • Page 26 FocusAir Precision Air Conditioner 5. Before the wiring connection, you should determine the voltage of the power input, and ensure that the power supply had been shut down. Testing 1. The voltage of the power supply is the same as the rated voltage in the nameplate. 2.
  • Page 27: Controller

    FocusAir Precision Air Conditioner Controller Summary—this chapter mainly introduces the operation and parameter settings of the controller. §5-1 Summary FocusAir precision air conditioners configure a world leading technical micro controller, which can accurately control the temperature and humidity, and make the units stable and reliable. The controller stores up the programming control procedures and all the operating parameters, which can be read through the user terminal.
  • Page 28: Functions Of The Buttons

    FocusAir Precision Air Conditioner Figure 5-1 User Terminal Functions of the Buttons Table 5-1 Functions of the Buttons in User Terminal Buttons Functions ALARM Examine the alarms and reset, the red light flashing when alarm Access to the menu choices Exit button Move up the cursor;...
  • Page 29: Check The Operating Condition Of Theunit

    FocusAir Precision Air Conditioner Key-press Control First of all, press the PRG button of the user terminal, then press the downward button and access the switch menu of the unit, finally press the “ENTER” button, the display will show the unit switching on.
  • Page 30: Maintenance

    FocusAir Precision Air Conditioner 1、Maintenance In this menu, you can check the code and system information of the software, the runtimes and the maximum runtimes of the hardware, the alarm history records, the probe calibration, and the inspection and modifying the maintenance password by manual operation of the unit. Code FLSTDMCZOE System Information...
  • Page 31 FocusAir Precision Air Conditioner Note: a) The input and output parameters cannot be modified but only for check. b) The relevant ports of the digital input are all closed if the unit operating normally. When the unit is abnormal, the output relay of the port will disconnect and the unit will alarm. c) The condition corresponding to each port of unit is shown in the menu of the digital output and analogue output, such as: operations of the fan, compressor, electrical heater and humidifier.
  • Page 32 FocusAir Precision Air Conditioner Analog Inputs Analog Inputs Amb. humidity 50.0% Room Temp. 23℃ Pr 1 Supply Air —bar —℃ —℃ Pr 2 External Temp. —bar —℃ —℃ Dig. Inputs 4-6 Dig. Inputs 1-3 Overl. Heat 2 Overl. or HP C1 Air Filter Overl.
  • Page 33: Set Point

    FocusAir Precision Air Conditioner Nominal Values Cylinder 1 Nom.prod. 8.0kg/h Status Soft start Nom.current 8.7A Activity Fill Voltage 400V3-ph Amps 8.7A Driver 1 Cyl.1 Cont. EEV Mode MAN. Cyl.1 Fill EEV Position 0040 Cyl.1 Drain Power Request Water Level High Driver 1 R407C Driver 1...
  • Page 34 FocusAir Precision Air Conditioner point, the unit will work in heating mode. But in a certain precision area, it will come forth a dead zone and the unit neither cooling nor heating because of the setting precision of the temperature. Set Point Temperature 24.0℃...
  • Page 35 FocusAir Precision Air Conditioner User Password Limits Set Point 9999 Temperature Min. 10.0℃ Max. 50.0℃ Limits Set Point Temperature Humidity Cool Differ. 2.0℃ Min. 30.0% Heat Differ. 2.0℃ Max. 70.0% Neutral Zone Show Language Humidity Mask at Start-up Dehumid.band 10.0% Off unit by key Humidity Band 10.0%...
  • Page 36: Board Switch

    FocusAir Precision Air Conditioner when out of factory, and do not need to be made any change. 8、Board Switch This function is used for the operation of several units displayed in one user terminal. When you want to check the working status of other units in the user terminal, you just need to modify the address in the menu.
  • Page 37: Logic And Set Of Humidity

    FocusAir Precision Air Conditioner times. The dehumidification will stop when the return air temperature is lower than the lowest set point. And when the temperature returns above and higher than the lowest set point, the dehumidification will start again. The set point and the difference value can be modified. Temperature Alarm Low Temp.
  • Page 38 FocusAir Precision Air Conditioner Other Humidity Control Functions: The high and low humidity alarm will cause an alarm signal on the screen and have a modifiable delay. The setting page and logic are shown in figure 5-13. Humidity Alarm Low Offset 10.0% High Offset 10.0%...
  • Page 39: Inspection And Debugging

    FocusAir Precision Air Conditioner Inspection and Debugging Summary—this chapter mainly introduces the inspection, functions test and operation debugging after the units installed. §6-1 Inspection Initial Inspection The initial inspection can check the installation quality of the units again. The suggested contents of the initial inspection are shown in table 6-1.
  • Page 40: Vacuum Pumping And Refrigerant Charging

    FocusAir Precision Air Conditioner Pipeline Inspection This inspection can ensure that the refrigerant pipelines had been installed correctly, and promoted the lubricating oil return to the compressor. If there was no proper installation of the pipelines and oil storage bend, it may lead the unit abnormally working and the oil returning is not smooth.
  • Page 41: Adding Lubricating Oil

    FocusAir Precision Air Conditioner The first step: after the vacuum pumping, charge the liquid refrigerant from the receiver valve, the charging volume is shown in table 6-4. The second step: start up the unit and calibrate the refrigerant charging volume, make the subcooling and superheat fill the requirements when the unit has operated smoothly.
  • Page 42: Function Inspection

    FocusAir Precision Air Conditioner along with the discharge of the compressor, it will affect the oil return cycle. At this time, we should replenish some lubricating oil to the refrigeration system, so as to ensure the compressor running normally. In general, it cannot add lubricating oil if the length of connecting pipeline within 30m.The adding volume of lubricating oil refers to the calculation formula below: Calculation Formula: L=22.94R-0.1O Notes:L——Adding Volume of Lubricating Oil (ml)
  • Page 43 FocusAir Precision Air Conditioner On the basis of the unit designed parameters (subcooling, superheat and pressure etc.), you can adjust the refrigerant charging volume during the unit started up and operated, and make the charging volume fill the requirements. 2、Debugging Contents a) Measure and record the operation parameters of the unit.
  • Page 44: Daily Operation

    FocusAir Precision Air Conditioner Daily Operation chapter mainly introduces related fundamentals Summary—this refrigeration and control, the daily operation, system failure phenomena and disposal methods of the precision air conditioner. §7-1 Related Principles 1、 Main Components and Functions of the Refrigeration Systems Table 7-1 Main Components and Functions of the Refrigeration Systems Components Functions...
  • Page 45 FocusAir Precision Air Conditioner Figure 7-1 p-h Diagram 2) Principle Diagram of Refrigeration Cycle Figure 7-2 Principle Diagram of Refrigeration Cycle Note:①——Compressor ②——Condenser ③——Expansion Valve ④——Evaporator 3) State Points The numerical values of figure 7-1 and 7-2 denote each thermodynamic state points of the...
  • Page 46: Control Principle

    FocusAir Precision Air Conditioner refrigerant in the cycle process of the refrigeration system. The thermodynamic state of each state point refers to the annotation below: 1 —— Low temperature and low pressure saturated vapor; 1′ —— Low temperature superheating vapor; 2 ——...
  • Page 47: Phenomenon Of The Common Fault Alarm And Solutions

    The common faults and suggested treatments refer to the table 7-3. [Note: when the unit had faults, and you cannot simply remove, please contact the KSTAR for technical support.] [Warning: Part of the circuits in the system is 400V/50Hz, it is only allowed for the professional and technical...
  • Page 48 FocusAir Precision Air Conditioner Table 7-3 Phenomenon of the Common Fault Alarm and Countermeasure Faults Possible Causes Solutions The unit had not been connected to Inspect the power input of the unit, the power ensure that the connection is good. Unit not start-up The phase-sequence of the power is Inspect the phase-sequence and wiring...
  • Page 49 FocusAir Precision Air Conditioner condensable gas high point of the system, conduct the vacuum pumping and refrigerant charging again if necessary Inspect the installation of the filter, and The airflow too much the proper airflow Fan overload Voltage too low Inspect the power input Motor winding of fan fault Ensure that the motor winding is normal...
  • Page 50 FocusAir Precision Air Conditioner new one if dirty Inspect the conductivity of the water supply, add some salt properly and Humidification current is too small increase the ionic concentration if the conductivity too small Ensure that the water tap is open, the wiring of water inlet solenoid valve is not The humidifier water shortage loose, and the valve had not been...

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