Kaysun KPVH-224 DN11 Installation And Owner's Manual

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INSTALLATION AND OWNER'S

KPVH-224 DN11

KPVH-280 DN11

Original Manual

Please read this manual carefully and keep it for future reference.

All the pictures in this manual are for illustration purpose only.

MANUAL

Indoor Unit Vertical HC

KPVH-335 DN11

KPVH-450 DN11

KPVH-560 DN11

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Summary of Contents for Kaysun KPVH-224 DN11

Page 1 INSTALLATION AND OWNER'S MANUAL Indoor Unit Vertical HC KPVH-224 DN11 KPVH-335 DN11 KPVH-560 DN11 KPVH-280 DN11 KPVH-450 DN11 Original Manual Please read this manual carefully and keep it for future reference. All the pictures in this manual are for illustration purpose only.
Page 3 Contents About the Documentation About this document / 1 Safety instructions / 2 Safety Warning Safety precautions / 4 Electric safety requirements / 5 Safety precaution about the appliances using flammable refrigerant / 6 Operation Operation precautions / 13 Optimum operation / 14 Disposal / 17 Symptoms that are not faults / 15 Installation...
Page 4 About the Documentation About this document NOTE Make sure that the user has the printed documentation and ask him/her to keep it for future reference. Target audience Authorised installers + end users NOTE This appliance is intended to be used by expert or trained users in shops, in light industry, and on farms, or for commercial and household use by lay persons.
Page 5 Safety instructions Please thoroughly read and ensure that you fully understand the safety precautions (including the signs and symbols) in this manual, and follow relevant instructions during use to prevent damage to health or property. Safety Signs indicates a hazard with a high level of risk which, if not avoided, will result in DANGER serious injury.
Page 6 DANGER Any person who is involved with working on or breaking into a refrigerant circuit should hold a current valid certificate from an industry-accredited assessment authority, which authorises their competence to handle refrigerants safely in accordance with an industry recognised assessment specification. Servicing shall only be performed as recommended by the equipment manufacturer.
Page 7 Safety Warning WARNING CONTENTS Ensure Proper Professional Only Earthing PROHIBITION SIGNS No Laying No Strong Currents No Open Flame; No Acid or Inflammable Thing Fire, Open Ignition Alkali Materials Source and Smoking Prohibited Safety precautions DANGER 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 8 CAUTION This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved. Children shall not play with the appliance. Cleaning and user maintenance shall not be made by children without supervision.
Page 9 Safety precaution about the appliances using flammable refrigerant WARNING The following precautions should be complied with when installation, service, maintenance and repair, and decommissioning of appliances using flammable refrigerant. Symbols WARNING Do not use means to accelerate the defrosting process or to clean, other than those recommended by the manufacturer.
Page 10 General WARNING Protection devices, piping and fittings shall be protected as far as possible against adverse environmental effects, for example the danger of water collecting and freezing in relief pipes or the accumulation of dirt and debris. Provision shall be made for expansion and contraction of long runs of piping. Piping in refrigerating systems shall be so designed and installed as to minimize the likelihood of hydraulic shock damaging the system. Steel pipes and components shall be protected against corrosion with a rustproof coating before applying any insulation.
Page 11 Presence of fire extinguisher If any hot work is to be conducted on the refrigerating equipment or any associated parts, appropriate fire extinguishing equipment shall be available to hand. Have a dry powder or CO2 fire extinguisher adjacent to the charging area. No ignition sources No person carrying out work in relation to a refrigerating system which involves exposing any pipe work shall use any sources of ignition in such a manner that it can lead to the risk of fire or explosion.
Page 12 Sealed electrical components WARNING Sealed electrical components shall not be repaired. Cabling 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 aging or continual vibration from sources such as compressors or fans.
Page 13 Refrigerant removal and circuit evacuation When breaking into the refrigerant circuit to make repairs – or for any other purpose – conventional procedures shall be used. However, for flammable refrigerants it is important that best practice is followed since flammability is a consideration.
Page 14 Decommissioning Before carrying out this procedure, it is essential that the technician is completely familiar with the equipment and all its detail. It is recommended good practice that all refrigerants are recovered safely. Prior to the task being carried out, an oil and refrigerant sample shall be taken in case analysis is required prior to re-use of recovered refrigerant.
Page 15 Recovery When removing refrigerant from a system, either for servicing or decommissioning, it is required to follow good practice so that all refrigerants are removed safely. When transferring refrigerant into cylinders, ensure that only appropriate refrigerant recovery cylinders are employed. Ensure that the correct number of cylinders for holding the total system charge is available.
Page 16 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. Precautions should be taken during maintenance to avoid the following risks: 1. Touching of moving or live parts, such as fans, motors, or louvers, by a non professional. Running parts may cause harm to you or transmission assemblies may become damaged.
Page 17 CAUTION 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 18 Operating Range Use the unit in the following temperature and humidity ranges for safe and effective operation. Indoor 16 °C~32 °C temperature ≤ 80 % Cooling Indoor (When the humidity exceeds 80 %, long-time operation of the indoor unit may cause dew humidity condensation on the surface of the indoor unit, generate mist-like cold air from the air outlet or water dripping out of the unit.)
Page 19 The Following Symptoms Are Not System Malfunctions The following phenomena are normal during operation of the air conditioner. They can be solved according to the instructions below or do not need to be solved. ■ The indoor unit emits white mist ① When humidity is high during cooling mode, white mist may appear due to the humidity and the temperature difference between the air inlet and outlet.
Page 20 ■ Switching from cooling/heating (not available for cooling only units) mode to fan only mode When the indoor unit reaches the set temperature, the air conditioner controller automatically stops the compressor operation and switches to the fan only mode. When the room temperature rises (in cooling mode) or falls (in heating mode) to a certain level, the compressor is restarted and cooling or heating operation is resumed.
Page 21 Installation Carefully read this manual before installing the indoor unit. Installation Precautions WARNING Make sure to carry out the installation according to local legislation. Ask your local dealer or professionals to install the product. This unit must be installed by qualified persons. Users MAY NOT install the unit themselves; otherwise, faulty operations may cause the risks of fire, electrical shock, injury, or leakage, which could harm you or others or damage the air conditioner.
Page 22 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 23 Precautions For Transporting And Lifting The Air Conditioner Before transporting the air conditioner, determine the path that will be used to move it to the installation site. Do not unpack the air conditioner until it is transported to the installation site. When unpacking and moving the air conditioner, must hold the Lifting Lugs and do not apply force to other parts, especially the refrigerant piping, drain pipe and plastic accessories, so as to avoid damaging the air conditioner and causing personal injury.
Page 24 Recommended Installation Sites It is recommended to install the air conditioner according to the design drawing of the HVAC engineer. The selection principle for the installation site is as follows: Ensure that the airflow in and out of the indoor unit is reasonably organized to form an air circulation in the room. Prevent the air conditioner from blowing directly at the human body. Keep the air-conditioning return air away from direct exposure to the sun in the room.
Page 25 Layout Installation layout of side air discharge model ① Indoor unit ② Air deflector ③ Wired controller *Power supply cable and ④ ⑤ Gas pipe ⑥ Liquid pipe earthing wires ⑦ Air filter ⑧ Air inlet grille ⑨ Remote controller (optional) ⑩...
Page 26 Installation layout of top air discharge model ① Indoor unit ② Duct* ③ Wired controller *Power supply cable and ④ ⑤ Gas pipe ⑥ Liquid pipe earthing wires ⑦ Air filter ⑧ Air inlet grille ⑨ Remote controller (optional) ⑩ Drain pipe of the drain pan * To be purchased separately on site.
Page 27 Product dimensions (Unit: mm) Side air discharge model Front view: Side view: Electric control box G Liquid pipe joint Power cable Gas pipe hole Φ 35 The water drain with Fresh air Liquid pipe an inner diameter of Φ knockout hole Φ 35 30 matches the PVC Φ 69 Communication pipe with an outer cable hole Φ 35 diameter of Φ 32 Gas pipe hole Φ 50...
Page 28 Top air discharge model Front view: Side view: Note: Don’t remove protective film. When the unit is installed outdoor, the PET transparent label here is used for waterproof purpose, and it is prohibited to be torn. 47.2 Electric Φ 4.2 control box The water drain with an inner...
Page 29 Top view:(45.0 ≤ kW ≤ 56.0) : 1 409 Capacity (kW) 25.2 ≤ kW ≤ 33.5 1 150 10XP85 =850 1 100 1 215 1 179 3/4-16 UNF 33.5 < kW ≤ 56.0 1 600 1 409 15 XP 85 =1 275 1 549 1 662 1 629 7/8-14 UNF Installation Materials Accessories List of accessories Installation And Operation Flare Nut X 2 PTFE Tape X 1...
Page 30 NOTE When installing the insulation pipe on site, please cut it according to the actual needs. (Either method (a) or (b) is OK. Method (c) is incorrect. There must be no gap between the insulation pipe and connecting pipe.) Not connected Clearance The accessory kit is stored inside the machine body, and it is required to open the machine grille and take out the accessory kit.Check the accessory kit for the above items and contact your local dealer for any...
Page 31 Insulation Material Requirements The insulation work should only be carriedout after the successful completion of the air tight test. Use polyethylene foam as insulationmaterial, fire rating class is B1 and heat resistance is over 120 °C. Thickness of the insulation pipe: 1.
Page 32 Preparations Before Installation Handling When you use a forklift truck to move the machine, be sure to insert the forklift into the floor decker under the machine. Centre-of-gravity position Floor decker Forklift truck CAUTION As the center of gravity of the Model top-outlet product is higher than that of the Model side-outlet product, be sure not to tilt the machine too much so as to prevent the machine from falling when removing the floor decker for installation.
Page 33 Unpacking Check ① After unpacking, check whether the packing materials are in good The red dot bulges condition, whether the accessories that come with the product are Sealing complete, whether the air conditioner is intact, whether the surfaces of the heat exchanger and other parts are not worn, and whether there are oil stains on the stop valves of the unit.
Page 34 Side view(Suitable for top outlet model only) Air outlet Return air inlet D ≥ 900 Overhaul position NOTE When overhauling the machine from the front, it should be taken into account that three panels need to be removed, and the overhaul position D ≥ 900 mm; The overhaul distance at the rear of the machine can be reserved as required.
Page 35 Indoor unit installation WARNING Install the air conditioner in a location with sufficient strength to support the weight of the unit. Take reinforcement measures when necessary. Install the air conditioner in a place with reliable horizontal plane strength to avoid installation on adverse terrain such as slopes.
Page 36 Installation of suspension bolts Refer to the following figure on installation using the suspension bolts. Sites with concrete slabs With steel frame Use embedded bolts and anchor bolts Directly set and use an angle iron for support. Suspension bolts Angle iron for support Suspension bolts Indoor unit installation...
Page 37 Use a transparent hose to observe water level (principle of communicating vessels) and verify the tilt angle of the unit in the length direction. It shall be installed level or at an angle within 1° towards the drainage side. (For units without a drain pump, ensure a slope of 1/100 towards the drainage side. Do not tilt towards the non-drainage side.) Otherwise, water cannot drain smoothly and leaks can easily occur.(Figure 2) Use a forklift truck to move the cabinet air conditioner to the installation position, loosen the screws...
Page 38 Refrigerant connecting piping installation When connect different series of outdoor units, the length and level differences of piping connections. Refer to the Installation and Operation Manual of the outdoor unit. CAUTION The installation of pipe-work shall be kept to a minimum. During the installation of the connecting pipes, do not allow air, dust, and other debris to penetrate the piping system, and make sure the interior of the pipes is dry.
Page 39 Pipe connection steps CAUTION Do not let the interface of the indoor unit bear Bend and arrange pipes carefully the weight of the connecting pipe; otherwise, the without damaging the pipes and their connecting pipe may be crushed and deformed, insulating layers.
Page 40 Wet cloth Air deflector When customizing the rear return air model machine, please be sure to reinstall the air deflector after the piping brazing is completed, otherwise it will directly affect the performance of the machine Remove the front small pipe first before welding Rubber plug (cross...
Page 41 Handle Yoke Cone Connecting pipe Clamp handle Red arrow mark Nut fastening Connect the indoor unit first, then connect the outdoor unit. Before tightening the flare nut, apply refrigeration oil on the inner and outer surface of the pipe flare (must use refrigeration oil compatible with the refrigerant for this model), and turn it 3 or 4 turns by hand to tighten it.
Page 42 Pipe size (mm) Tightening torque [ N.m (kgf.cm)] Φ 6.35 14.2–17.2 (144–176) Φ 9.52 32.7–39.9 (333–407) Φ 12.7 49.5–60.3 (504–616) Φ 15.9 61.8–75.4 (630–770) Φ 19.1 97.2–118.6 (990–1 210) CAUTION Excessive torque will damage the flared mouth and nut, and too small torque cannot tighten the nut, which will cause refrigerant leakage.
Page 43 Leak detection The leak test must satisfy the specifications of EN378-2. To check for leaks: Vacuum leak test ① Evacuate the system from the liquid and gas piping to –100.7 kPa (–1.007 bar)(5 Torr absolute) for more than 2 hours. ② Once reached, turn off the vacuum pump and check that the pressure does not rise for at least 1 minute. ③...
Page 44 WARNING Compliance with national gas regulations shall be observed keep ventilation openings clear of obstruction. Ensure that the refrigeration system is earthed prior to charging the system with refrigerant. Label the system when charging is complete (if not already). Extreme care shall be taken not to overfill the refrigeration system. CAUTION Cylinders shall be kept upright if a siphon tube is present.
Page 45 Drain pipe installation CAUTION Before installation of the drain pipe, determine its direction and elevation to avoid intersection with other pipelines to ensure that the slope is straight. The highest point of the drain pipe should be equipped with a vent port to ensure the smooth drainage of condensate water, and the vent port must face downwards to prevent dirt from entering the pipe.
Page 46 Attached water piping Thermal insulation pipe PVC water drain pipe (outer diameter: 32 mm) PTFE Adhesives sealing tape There is a large gap between The thermal the thermal insulation pipe insulation pipe is and the unit, resulting in closely attached thermal insulation failure.
Page 47 The end of the drain pipe must be more than 50 mm above the ground or from the base of the water drainage slot. In addition, do not submerge it in water. To drain the condensed water directly into a ditch, the water drain pipe must bend upwards to form a U-shaped water plug to stop odors from entering the room via the water drain pipe.
Page 48 ● How to drain water without the drain pump: (Unit: mm) 800~1 000 Slope > 1/100 Method to connect the drain pipe for a single unit Water drainage test Before the test, make sure that the water drain piping is smooth, and check that each connection is properly sealed.
Page 49 Air duct installation(Top outlet model) Please use locally purchased air ducts and soft air ducts (Use environmentally friendly, odorless materials, otherwise the air conditioner may generate odor when it runs). Install the flange at the air return side, and use aluminum foil tape to seal the connection part between the flange and the air duct to avoid air leakage.
Page 50 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 earthed reliably and must meet the requirements of the local country/ region.
Page 51 Electrical characteristics Side outlet model Electric specifications of the indoor unit Indoor fan motor Capacity (kW) Frequency Voltage Rated motor output 25.2 2.18 28.0 2.18 33.5 220~240 2.26 45.0 4.13 56.0 5.05 2 300 Top outlet model Electric specifications of the indoor unit Indoor fan motor Capacity Frequency...
Page 52 Schematic figure of the main terminal blocks of main control board CN30 CN10 Terminals of display box X1 X2 P D1 D2 M1 M2 Communication terminals CN18 CN22 Switch module ALARM N AC2 Terminals of alarm signal output, terminals CN55 of strong current Terminals of remote sterilization module...
Page 53 Connect the strong current wires (power supply cable, alarm signal output wires, and strong current sterilization wires) and weak current wires (communication wiring, display box communication wiring, remote switch communication wiring, expansion board communication wiring) to the electric control box through the strong and weak current inlets of electric control box.
Page 54 CAUTION Do not bond and connect the power supply cable. Bonding and connecting the power supply cable may cause it to heat up, resulting in a fire. The power supply cable must be crimped If it fails to crimp the insulated circular terminal reliably using an insulated circular terminal block due to on-site limitations, connect the block, and then connected to the power supply...
Page 55 ② Power supply cable system connection Power supply cable system connection depends on the methods of communication between the indoor unit and outdoor unit. For the HyperLink (M1M2) communication method, indoor units are allowed to have independent power supplies. For other communication methods, indoor units should be provided with uniform power supplies.
Page 56 Indoor units are provided with unified power supply*, which are wired as follows: 1. HyperLink (M1M2) communication with the unified power supply: Power supply for indoor unit L1 + La + Ln ≤ 2 000m × × Communication wires Wire diameter: 0.75 mm Circuit breaker Power supply cable Distribution box Master outdoor unit...
Page 57 CAUTION When the indoor units are provided with a unified power supply, if the indoor units in the same refrigerant system are V8 indoor units, then indoor units and outdoor unit can communicate either via HyperLink (M1M2) with a unified power supply, or via P/Q. If some of the indoor units in the same refrigerant system are non-V8 series, then indoor units and outdoor unit can only communicate via P/Q/E communication.
Page 58 ② Table of selection of communication wiring diameter One-to-more Function Indoor unit and outdoor unit communication (centralized controller) Communication HyperLink HyperLink (M1M2) P/Q/E (M1M2) communication communication communication communication D1D2 Item (Indoor units (Indoor units (Indoor units (Indoor units communication are powered are powered are powered are powered...
Page 59 ③ Indoor unit and outdoor unit communication HyperLink (M1M2) communication (with independent power supply) Single unit: HyperLink (M1M2) communication is a new type of indoor unit and outdoor unit communication technology. When the indoor units are provided with independent power supplies, use 2 × 1.5 mm communication cables. M1 and M2 ports are located at terminal block "CN10" of the main control board.
Page 60 CAUTION If the total length is less than or equal to 200 m and the total number of indoor units is less than or equals to 10 sets, the electronic expansion valve in indoor unit can be powered and controlled by the master outdoor unit.
Page 61 System: The HyperLink (M1M2) communication wiring with a unified power supply between indoor unit and outdoor unit can reach a length of up to 2 000 meters, supporting any topology connection. The following figure shows a serial connection: Power supply for indoor unit Communication wires ×...
Page 62 System: The maximum total length of the P/Q communication cable of the Indoor unit and outdoor unit can be up to 1 200 m, and can be connected in serial, as shown in the figure below: Power supply for indoor unit Communication wires ×...
Page 63 CAUTION When P/Q or P/Q/E communication is used, the indoor units need to be powered uniformly. Either P/Q, P/Q/E communication or HyperLink (M1M2) communication can be selected. If it is required for indoor units to have independent power supplies, then HyperLink (M1M2) communication must be selected.
Page 64 Achieving centralized control of the indoor unit through D1D2 communication The D1D2 communication wiring can also be connected to the centralized controller to achieve centralized control of the indoor unit, as shown in the figure below: Indoor unit 1 # Indoor unit 2 # Indoor unit n # D1 D2...
Page 65 ③ Switch module connection Expansion boards can communicate with the main control board through the Switch board. Use one or both of the two expansion boards.The wiring figures are as follows: Use 1# Expansion board Use 2# Expansion board CN18 CN18 Switch Switch...
Page 66 Alarm signal and Sterilization module Refer to the following figure for the wiring of alarm signal and Sterilization module. Main CN22 control Output voltage: 220 VAC; board Maximum output power: 220 W CAUTION Strong current sterilization module The output voltage is 220-240 V~. Alarm signal output Output voltage: 220 VAC;...
Page 67 Reclose the electric control box cover Straighten out the connecting wires and lay them flat, and close the electric control box cover again. Pipe temperature Strong current Weak current sensor cables (3 pcs) Electronic expansion valve cable Strong current Weak current Water level switch cable CAUTION...
Page 68 Error codes Error codes and definitions The error code is displayed on the display box and the wired controller display. Definition Error code Digital display Emergency stop Outdoor unit fault Interlocking control Heat Recovery Ventilation Unit fault (in-series application) The Humidity Unit fault Interlocking control Heat Recovery Ventilation Unit fault (non-serial application) The AHU Kit slave unit fault Self-check fault...
Page 69 Definition Error code Digital display Abnormal communication between the indoor unit main control board and fan drive board Abnormal communication between the indoor unit and wired controller Abnormal communication between the indoor unit and Wi-Fi Kit Abnormal communication between the indoor unit main control board and display board Abnormal communication between the AHU Kit slave unit and master unit Number of AHU Kits is not the same as the set number...
Page 70 Definition Error code Digital display T1 (Indoor unit return air temperature sensor) short-circuits or cuts off 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...
Page 71 Definition Error code Digital display Address code not detected Motor failed more than once IPM (fan module) overcurrent protection Instantaneous overcurrent protection for phase current Low bus voltage fault High bus voltage fault Phase current sample bias error Motor and indoor unit are unmatched IPM and indoor unit are unmatched Motor startup failure Motor blocking protection...
Page 72 CAUTION Error codes are displayed only for certain outdoor unit models and indoor unit configurations (including the wired controller and display box). When the main control program is being upgraded, make sure that the indoor unit and outdoor unit remain powered on. Otherwise, the upgrading process will stop. Spot check description Use the bi-directional communication wired controller (for example, WDC3-86S) to activate the spot check...
Page 73 Displayed content Remarks When there are multiple addresses (an indoor unit with a large horsepower has both real and virtual addresses), the address digits will be displayed sequentially every 0.5 Communication address value (for communication seconds; For example, if the indoor unit is assigned with with the outdoor unit) 4 addresses, after the spot check starts, 01 - >...
Page 74 Settings 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 air flow mode Indoor units that are equipped with a constant air flow function are set to the constant air flow mode when they leave the factory.
Page 75 Air pressure curve Constant air flow - self-adaptive 25.2 kW 28.0 kW 2 500 2 700 2 900 3 100 3 300 3 500 3 700 3 900 4 100 4 300 4 500 4 700 4 900 2 500 2 700 2 900 3 100 3 300 3 500 3 700 3 900 4 100 4 300 4 500 4 700 4 900 Air flow rate [m³/h] Air flow rate [m³/h] 33.5 kW...
Page 76 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. The steps are as follows: ① On the main page, hold " " and " "...
Page 77 Static pressure setting parameter table——Top outlet model with rear return air inlet (Customized) Unit Static pressure settings power Level Level Level Level Level Level Level Level Level Level Level Level Level Level Level Level Level Level Level Level W*100 Pa Pa Pa Pa Pa Pa Pa Pa Pa Pa Pa Pa Pa Pa Pa Pa Pa Pa Pa Pa 90 100 120 150 170 200 240 280 300 330 350 (8 HP) 90 100 120 150 170 200 240 280 300 330 350...
Page 78 56.0 kW ESP * 1: 400 Pa MAX ESP * 2: 300 Pa ESP * 3: 150 Pa STD ESP * 4: 100 Pa ESP * 5: 50 Pa 4 400 4 800 5 200 5 600 6 000 6 400 6 800 7 200 7 600 8 000 8 400 8 800 9 200 9 600 10 000 10 400 Air flow rate [m³/h] Switch between constant air flow and constant speed The two operating modes are switched as follows:...
Page 79 Test run Checklist before test run After the installation of the unit, check the items listed below first. CAUTION Do not power on the system. Pass/Fail Check list Read the complete installation and operation manual. Installation Check that the units are properly installed, to avoid abnormal noises and vibrations when starting up the units.
Page 80 Pass/Fail Check list Refrigerant leak Check for refrigerant leaks inside the unit. If there is a refrigerant leak, try to repair the leak. If the repair is successful, please call the local agent. Do not come into contact with the refrigerant leaking from the refrigerant piping connections. It may cause frostbite.
Page 81 Maintenance and 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 82 Procedure Remove the air inlet grille. Loosen the two screws on the air intake grille. Tilt the air intake grille outward (Tilted at more than 60 degrees), and lift it up to release it from the machine body clamp. Remove the filter. Align the suspension lugs on both sides of the air filter with the pocket hole of the air inlet grille, and then remove the air filter.
Page 83 CAUTION To avoid deformation of the filter, do not use fire or a burning appliance to dry the filter. If the filter is dirty, use a soft brush and neutral detergent to clean it, then shake off the water and dry it in a cool place.
Page 84 Maintenance During in-depth maintenance, the air conditioner should be cleaned and maintained by professional technicians every 2 to 3 years. For the indoor unit in constant speed mode, the primary efficiency filter is usually cleaned every three months. When operating in a dusty environment, the air flow and capacity of the filter will decrease. The filter may even become blocked, and the air conditioner performance and indoor air compromised.
Page 85 service Step to dismantle the wind wheel, motor and coupling After removing the screws, tilt the air intake grille Remove the screws on both sides of the cover panel outward (With an opening angle greater of the electric control box. than 60°), and then lift it upward to remove the panel.
Page 86 Remove the motor cable port on the main After removing the four screws, separate the fan board. assembly from the electric control box ssembly. Remove the connecting cables of the sensor, water pump, and electronic expansion valve, and remove the electric control box assembly. Motor wiring harnesses Remove the 4 screws on the side of the...
Page 87 Remove the 4 screws on the outside of the four A positioning protrusion is provided between corners. the fan assembly and the four corners of the supporting plate for positioning. To remove the fan assembly, lift it 1 cm to 2 cm upward and then pull it out.
Page 88 Remove the 2 hexagon screws from the After removing the 4 screws, the motor can coupling. (Three-wind wheel model) be removed. Motor 2-M8 CAUTION When removing the three-wind wheel assembly, use the lifting mechanism to remove them to avoid damage caused by heavy assembly. Loosen the coupling screw with the M8 hex socket tool.
Page 89 Attached Page ErP Information Fan Types Centrifugal fan ErP Directive 2009/125/EC Directive (or Standard) for Regulation COMMISSION REGULATION (EU) No 327/2011 Model Name ZKSN-2300-8-2+LX-305*203*20-56J Rev. Prepare by Specified Information of Fan: Information Item Comment ηtarget = 39.9 % Overall efficiency (ηe) = 44.7 % Pass or not (Criteria: ηe ≧ ηtarget ) Pass Measurement category (A-D) Efficiency category (static or total) Static...
Page 90 ErP Information Fan Types Centrifugal fan ErP Directive 2009/125/EC Directive (or Standard) for Regulation COMMISSION REGULATION (EU) No 327/2011 Model Name ZKSN-920-8-12-2L+LX-305*203*20-56J Rev. Prepare by Specified Information of Fan: Information Item Comment ηtarget = 37.2 % Overall efficiency (ηe) = 44.3 % Pass or not (Criteria: ηe ≧ ηtarget ) Pass Measurement category (A-D) Efficiency category (static or total) Static Efficiency grade at optimum energy efficiency point...
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