Kaysun KSEF-22 DN5.0 Owners & Installation Manual
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Kaysun KSEF-22 DN5.0 Owners & Installation Manual

Kaysun KSEF-22 DN5.0 Owners & Installation Manual

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OWNER'S & INSTALLATION
KSEF-22 DN5.0
KSEF-36 DN5.0
IMPORTANT NOTE:
Read this manual carefully before installing or operating your new air conditioning unit.
Make sure to save this manual for future reference.
MANUAL
KSEF-56 DN5.0
Floor Standing Units
KSEF-80 DN5.0

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Summary of Contents for Kaysun KSEF-22 DN5.0

  • Page 1 OWNER’S & INSTALLATION MANUAL Floor Standing Units KSEF-22 DN5.0 KSEF-56 DN5.0 KSEF-80 DN5.0 KSEF-36 DN5.0 IMPORTANT NOTE: Read this manual carefully before installing or operating your new air conditioning unit. Make sure to save this manual for future reference.
  • Page 2 Preface Dear users, Thank you for purchasing and using our product. Please read this manual carefully before you install, use, maintain or troubleshoot this product so that you can familiarize yourself with the product and use it correctly. For ODUs or other IDUs, please refer to the applicable installation & owner's manuals provided with them.

  • Page 3: Table Of Contents

    Contents Safety Warning Warning Signs / 1 Safety Precautions / 2 Electric Safety Requirements / 3 Appendix / 3 Operation Operation Precautions / 7 Operating Range / 8 Symptoms That Are Not Faults / 9 Display Box (Optional) / 11 Installation Installation Precautions / 12 Installation Materials / 19...

  • Page 4: Safety Warning

    Please thoroughly read and ensure that you fully understand the safety precautions (including the signs and symbols) in this manual, Safety Warning and follow relevant instructions during use to prevent damage to health or property. Explanation of symbols displayed on the unit This symbol shows that this appliance used a flammable refrigerant.

  • Page 5: Safety Precautions

    Warning contents Ensure Proper Professional Only Grounding Prohibition signs No Flammable No Strong Current No Open Fire No Acid or Alkali Materials Materials Safety Precautions Danger During thunderstorms, disconnect the main power switch. Otherwise, lightning may damage the unit. In the event of refrigerant leakage, smoking and open flames are prohibited. Disconnect the main power switch immediately, open windows to allow ventilation, keep away from the leakage point, and contact your local dealer or technical support to request a professional repair.

  • Page 6: Electric Safety Requirements

    Electric Safety Requirements Warning The air conditioner shall be installed according to the local wiring specifications. Wiring work must be completed by qualified electricians. All wiring work must comply with electrical safety specifications. The air conditioner must be well grounded. Specifically, the main switch of the air conditioner must have a reliable grounding cable.
  • Page 7 Ensure that the leak detection equipment being used is suitable for use with flammable refrigerants, i.e. non- sparking, adequately sealed or intrinsically safe. If any hot work is to be conducted on the refrigeration equipment or any associated parts, appropriate fire extinguishing equipment shall be available to hand.
  • Page 8 Check that cabling will not be subject to wear, corrosion, excessive pressure, vibration, sharp edges or any other adverse environmental effects. The check shall also take into account the effects of ageing or continual vibration from sources such as compressors or fans. When breaking into the refrigerant circuit to make repairs –...
  • Page 9 The recovery equipment shall be in good working order with a set of instructions concerning the equipment that is at hand and shall be suitable for the recovery of flammable refrigerants. In addition, a set of calibrated weighing scales shall be available and in good working order. Hoses shall be complete with leak- free disconnect couplings and in good condition.

  • Page 10: Operation

    Operation Operation Precautions Warning If the unit will be not used for a long time, disconnect the main power switch. Otherwise, an accident may occur. When the product is used with a burning appliance, the room must be ventilated regularly. Otherwise, it may cause an insufficient oxygen supply. Do not let children play with the air conditioner.

  • Page 11: Operating Range

    Disposal: Do not dispose of this product as unsorted municipal waste. Collection of such waste separately for special treatment is necessary. Do not dispose of electrical appliances as unsorted municipal waste, use separate collection facilities. Contact your local government for information regarding the collection systems available. If electrical appliances are disposed of in landfills or dumps, hazardous substances can leak into the groundwater and get into the food chain, damaging your health and well-being.

  • Page 12: Symptoms That Are Not Faults

    Symptoms That Are Not Faults Normal Protection of the Air Conditioner During operation, the following phenomena are normal and do not require maintenance. When the power switch is on, if you start the system right after it is stopped, it is normal that Protection the ODU does not operate for about four minutes as frequent compressor start/stop is not supported.
  • Page 13 "Self-cleaning" sound of icing During self-cleaning, there may be a slight clicking sound for about 10 minutes, indicating that the IDU is freezing, which is normal. The air conditioner makes low noise ① When the air conditioner is in "Auto", "Cool", "Dry", and "Heat" modes, it may emit a low continuous "hissing"...

  • Page 14: Display Box (Optional)

    Display Box (Optional) Display functions: ① In Standby mode, the main interface displays “---”. ② When starting up in Cooling or Heating mode, the main interface displays the set temperature. In Fan mode, the main interface displays the indoor temperature. In Dry mode, the main interface displays the set temperature, and when the humidity is set, the set humidity value is displayed on the wired controller.

  • Page 15: Installation

    Installation Carefully read this manual before installing the IDU. Installation Precautions Qualification and Safety Regulation Requirements Warning Please carry out the installation according to local standards. Ask your local dealer or professionals to install the product. This unit must be installed by professional technicians with relevant specialized knowledge. Users MAY NOT install the unit themselves;...
  • Page 16 Before and after installation, exposing the unit to water or moisture will cause electrical short circuit. Do not store the unit in a humid basement or expose it to rain or water. Make sure the installation base and lifting are robust and reliable; Insecure installation of the base may cause the air conditioner to fall, leading to an accident.
  • Page 17 Precautions for Carrying and Lifting the Air Conditioner Before carrying the air conditioner, determine the route that will be used to move it to the installation site. Do not unseal the air conditioner until it is moved to the installation site. First unseal and unpack the unit.
  • Page 18 The closer the wiring is to the power cabinet, the lower the wiring cost is. Keep the air-conditioning return air away from direct exposure to the sun in the room. Be careful not to interfere with the light tank, fire pipe, gas pipe and other facilities. The wired controller and the IDU should be in the same installation space;...
  • Page 19 Parts Part Description Gas pipe Liquid pipe *Connection wire Display box (optional) *Drainage pipes for models Wired controller (optional) *Power cable and ground wire Remote controller (optional) * To be purchased separately on site. Note All the optional accessories should be from our company. For optional accessories such as wired controllers, please refer to the instructions of the product.
  • Page 20 Product Dimensions (Unit: mm) Connecting point Connecting point of refrigerant pipe of refrigerant pipe BOLT HOLES (Liquid side ΦE) (Gas side ΦF) Installation...
  • Page 21 BOLT HOLES Connecting point Connecting point of refrigerant pipe of refrigerant pipe (Liquid side ΦE) (Gas side ΦF) Capacity (kW) 1020 1020 1360 1360 1104 1104 12.7 12.7 12.7 15.9 1253 1253 Installation...

  • Page 22: Installation Materials

    Installation Materials Accessories List of accessories Ins tallation & Owner's Brass nut X 2 Thermal insulation pipe X 2 Base X 2 Foot bolt X 4 Manual X 1 IDU Ins tallation Ins For use in the ins tallation Used for insulation and For some units (F3) tructions of connecting pipe...
  • Page 23 Heat Insulation Material Requirements ① Use the closed-cell foam insulation material, which is rated at a flame retardancy level of B1 and heat resistance of over 120°C. ② Thickness of the insulation pipe: 1. When the diameter is equal to or greater than 15.9mm, the insulation thickness is at least 20mm. 2.

  • Page 24: Preparations Before Installation

    Preparations Before Installation Unpacking Check ① Before installation, check whether the packing materials are in good The red dot condition, whether the accessories that come with the product are bulges Sealing complete, whether the air conditioner is intact, whether the surfaces of the heat exchanger and other parts have become worn, and whether there are oil stains on the check valve of the unit.
  • Page 25 Pipe Layout Bend the pipes or punch holes in the wall as needed. The deformed pipe area must not exceed 15% of the total area. A protective casing should be installed at the wall or floor hole. The weld joint must not be inside the casing.
  • Page 26 The check valve of the ODU is completely closed when leaving the factory. Unscrew brass nuts from the check valve in each connection, and connect the flared tube within 5 minutes. When the brass nuts at the check valve are removed and placed somewhere for too long, dust and other sundries may enter the pipeline system and cause failures after extended periods of operation.
  • Page 27 Flaring 90° Slope Rough Burrs To cut the piping with a pipe cutter, rotate the pipe cutter repeatedly. Put the pipe into the connecting nut flaring, and both the gas pipe and liquid pipe of the IDU are connected by flaring. Pipe cutter 90°±4 A (mm)
  • Page 28 Caution Excessive torque can break nut on installation conditions. When flared joints are reused indoors,the flare part should be re-fabricated. Pipe size (mm) Tightening torque [ N.m (kgf.cm)] Φ6.35 14.2–17.2 (144–176) Φ9.52 32.7–39.9 (333–407) Φ12.7 49.5–60.3 (504–616) Φ15.9 61.8–75.4 (630–770) Φ19.1 97.2–118.6 (990–1210) Caution...
  • Page 29 Leak Detection Fill the system with nitrogen and increase its pressure to detect leaks. The following methods are recommended: 1. By foam Apply soapy water or foam evenly (spray) on areas where leakage may occur, and observe whether air bubbles appear. If there are no air bubbles, it indicates that the system is airtight. 2.

  • Page 30: Drainage Pipe Installation

    Drainage Pipe Installation Caution Before installation of the condensate pipeline, determine its direction and elevation to avoid intersection with other pipelines to ensure that the slope is smooth and straight. The highest point of the drainage pipe should be equipped with a discharge port to ensure the smooth discharge of condensate water, and the discharge port must face downwards to prevent dirt from entering the pipe.

  • Page 31: Electrical Connection

    Electrical Connection Danger The power supply must be cut off before any electrical work is carried out. Do not conduct electrical work when the power is on; otherwise, it may cause serious personal injury. The air conditioning unit must be grounded reliably and must meet the requirements of the local country/region. If the grounding is not reliable, serious personal injury due to electric leakage may occur.
  • Page 32 Electrical Characteristics Electric specifications of the IDU Unit power IFM power IFM power Frequency Voltage (kW) input input (Hz) 0.50 0.50 220~240 0.60 0.60 Notes: MCA: Min. Circuit Amps. (A), which is used to select the minimum circuit size to ensure safe operation over a long period of time.
  • Page 33 Schematic diagram of the main terminal blocks of main control board CN22 CN10 CN18 CN55 Terminals of function Terminals of remote M1 M2 D1(X) D2(Y) module adapter board switch signal Power cable and earth Terminals of communication line Terminals of strong Alarm signal line terminals current sterilization...
  • Page 34 Power cable connection ① Connection between the power cable and power supply terminal Main control board The power supply terminal of the IDU is fixed on the main control board, the power cable is connected to the power supply terminal labeled "CN1" on the main control board. The live and neutral wires are connected according to the main control board logos "L"...
  • Page 35 ② Power cable system connection Power cable system connection depends on the forms of communication between the IDU and ODU. For the HyperLink communication form, IDUs are allowed to have independent power supplies. For other communication forms, IDUs should be provided with uniform power supplies. IDUs are provided with independent power supplies*, which are wired as follows: For HyperLink communication with independent power supply: Master ODU...
  • Page 36 IDUs are provided with uniform power supply*, which are wired as follows: 1. HyperLink communication with the uniform power supply: Power supply for IDU L1+La+Ln ≤ 2000m Wire diameter: 0.75mm × × Communication wire Circuit breaker Power cable Distribution box Distribution box Master ODU IDU 1#...
  • Page 37 Caution When the IDUs are provided with a uniform power supply, if the IDUs in the same refrigerant system are V8 IDUs, then IDUs and ODU can communicate either via HyperLink with a uniform power supply, or via P/Q. If some of the IDUs in the same refrigerant system are non-V8 series, then IDUs and ODU can only communicate via P/Q or P/Q/E communication.
  • Page 38 ② Table of selection of communication line diameter One controller One-to-more to one IDU (centralized Function IDU and ODU communication (Two controllers controller) to one IDU) Communication Communication P/Q/E HyperLink HyperLink communication communication communication communication X1X2 D1D2 Item (IDUs are (IDUs are powered (IDUs are powered (IDUs are powered...
  • Page 39 ③ IDU and ODU communication HyperLink communication (with independent power supply) Single unit: HyperLink communication is a new type of IDU and ODU communication technology. When the IDUs are provided with independent power supplies, use 2×1.5mm communication cables. M1 and M2 ports are located at terminal block "CN10"...
  • Page 40 Caution If the total distance is ≤ 200m and the total number of IDUs is ≤ 10 sets, the valve is powered and controlled by the master ODU. If the total distance is longer than 200m or the total number of IDUs is more than 10 sets, a repeater is required to increase the bus voltage.
  • Page 41 System: The HyperLink communication line with a uniform power supply between IDU and ODU can reach a length of up to 2000 meters, supporting any topology connection. The following figure shows a serial connection: Power supply for IDU × × Communication wire Circuit breaker Power cable...
  • Page 42 System: The maximum total length of the P/Q communication cable of the IDU and ODU can be up to 1200m, and can be connected in serial, as shown in the figure below: Power supply for IDU × × Communication wire Circuit breaker Power cable Distribution box...
  • Page 43 Caution When P/Q or P/Q/E communication is used, the IDUs need to be powered uniformly. Either P/Q, P/Q/E communication or HyperLink communication can be selected. If it is required for IDUs to have independent power supplies, then HyperLink communication must be selected. Use only shielded cables for P/Q or P/Q/E communication.
  • Page 44 ⑤ D1D2 communication line connection (limited to ODU and system configuration) Achieving one-to-multiple and two-to-multiple functions of the IDU wired controller through D1D2 communication (a maximum of 16 sets) D1D2 communication is 485 communication. The one-to-more and two-to-more functions of the IDU wired controller can be achieved through D1D2 communication, as shown in the figure below: IDU 1# IDU 2#...
  • Page 45 External board connection (limited to ODU and system configuration) The external board is a connection module outside the main control board, including a display box, a Switch module, and 1# and 2# Expansion boards . ① Connection of Display Box The display box is connected to the main control board through a 4-core cable, and is connected to the "CN30"...
  • Page 46 Reclose the electric control box cover Straighten out the connecting wires and lay them flat, and close the electric control box cover again. Warning Main power supply wiring needs to increase of protective pipe for fixed wiring. Caution Do not cover the electric control box during power-on. When covering the electric control box, arrange the cables carefully and do not clip the connecting wires on the electric control box cover.

  • Page 47: Application Control

    Application Control Error Codes and Definitions In the following circumstances (warning failures excluded), please stop the air conditioner immediately, cut off the power switch and contact the local air conditioner customer service center. The error code is displayed on the display box and the wired controller display. Error Error code Digital display Emergency stop...
  • Page 48 Error Error code Digital display Abnormal communication between the IDU and ODU Abnormal communication between the IDU main control board and fan drive board Abnormal communication between the IDU and wired controller Abnormal communication between the IDU and Wi-Fi Kit Abnormal communication between the IDU main control board and display board Abnormal communication between the AHU Kit slave unit and master unit...
  • Page 49 Error Error code Digital display The built-in room temperature sensor of the wired controller short- circuits or cuts off The wireless temperature sensor short-circuits or cuts off The external room temperature sensor short-circuits or cuts off Tcp (pre-cooled fresh air temperature sensor) short-circuits or cuts off Tph (pre-heated fresh air temperature sensor) short-circuits or cuts off TA (outlet air temperature sensor) short-circuits or cuts off Outlet air humidity sensor fault...
  • Page 50 Error Error code Digital display Low bus voltage fault High bus voltage fault Phase current sample bias error Motor and IDU are unmatched IPM and IDU are unmatched Motor startup failure Motor blocking protection Speed control mode setting error Phase lack protection of motor Operating Status Codes and Definitions (Non-Error) Definition Code...
  • Page 51 Spot Check Description Use the bi-directional communication wired controller (for example, WDC3-86S) to activate the spot check function in the following steps: Check No. ① On the main page, hold " " and "▲" for 2s to enter the query page. The wired controller Spot check parameters displays "CC".
  • Page 52 ESP Setting Use the bi-directional communication wired controller (for example, WDC3-86S) to set the unit external static pressure, which can be divided into the following two situations: Constant speed mode The bi-directional communication wired controller must be used to set the unit's external static pressure parameters to overcome the air outlet resistance.
  • Page 53 Static pressure setting parameter table(uncovered product) Unit power Static pressure settings Level 02 Level 04 Level 06 Level 07 Level 08 Level 09 Level 10 W*100 HP 22 (0.8HP) 36 (1.2HP) 56 (2.0HP) 80 (3.0HP) Caution Parameters can be set while the unit is powered on or powered off. On the parameter setting page, the wired controller does not respond to a remote signal, and does not respond to the app remote control signal.

  • Page 54: Test Run

    Test Run Before the Test Run, Make Sure That • IDUs and the ODU are properly installed. • The piping is correct, and the refrigerant piping system has been checked for leakage. • Piping length and the amount of refrigerant charged have been recorded. •...
  • Page 55 Inspection After Installation To ensure a comfortable indoor environment, please run down through the list to check whether the installation of the air conditioner meets the requirements. Insert a "×" for Fail and a "√" for Pass. Check Result Check Item Check Criteria (Pass/Fail) The air conditioner does not fall or vibrate,...

  • Page 56: Cleaning, Maintenance And After-Sales Service

    Cleaning, Maintenance and After-Sales Service Safety Warning Warning For safety reasons, always turn off the air conditioner and turn off the power before cleaning the air conditioner. Do not disassemble or repair the air conditioner by yourself; otherwise, it may cause fire or other hazards. Only professional service personnel can carry out the maintenance.
  • Page 57 Procedure diagram Remove the screws ① and ② , rotate the filter bracket, pull out the filter. Screw Screw Screw Screw Note Only professionals can change and disassemble the filter. Any improper operations may cause electric shock or injuries due to touching rotating parts. Clean the filter.
  • Page 58 Cleaning Air Outlets and Exterior Panels Wipe the air outlet and panel with a dry cloth. If a stain is hard to remove, clean it with clean water or neutral detergent. Caution Do not use gasoline, benzene, volatile agents, decontamination powder or liquid insecticides. Otherwise, the air outlet or panel may become discolored or deformed.

  • Page 59: Maintenance Of Conventional Parts

    Maintenance of Conventional Parts Steps to dismantle the drain pan The drain pan must first be removed during the maintenance of the internal unit assembly. Dismantle the drain pan according to the following schematic to prevent water leakage in the unit (Make sure there is no residual water in the drain pan before you dismantle it).

This manual is also suitable for:

Ksef-36 dn5.0Ksef-56 dn5.0Ksef-80 dn5.0

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