Tosot TU18HKI Owner's Manual
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Tosot TU18HKI Owner's Manual

Tosot TU18HKI Owner's Manual

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Summary of Contents for Tosot TU18HKI

  • Page 2 To Users Thank you for selecting TOSOT’s product. Please read this instruction manual carefully before installing and using the product, so as to master and correctly use the product. In order to guide you to correctly install and use our product and achieve...
  • Page 3 (10) The final right to interpret for this instruction manual belongs to TOSOT. Exception Clauses Manufacturer will bear no responsibilities when personal injury or property loss is caused by the following reasons: (1) Damage the product due to improper use or misuse of the product;...

  • Page 4: Table Of Contents

    Contents 1 Safety Precautions................. 1 2 Outline of the Unit and Main Parts..........3 3 Preparative for Installation............4 3.1 Standard Accessory Parts..............4 3.2 Selection of the Installation Location..........5 3.3 Connection Pipe Requirement............8 3.4 Electrical Requirement................ 9 4 Installation of the Unit..............10 4.1 Installation of the Indoor Unit............

  • Page 5: Safety Precautions

    DC Inverter U-match Series Cassette Type Unit 1 Safety Precautions This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death. This mark indicates procedures which, if improperly performed, might lead to the death or serious injury of the user.
  • Page 6 DC Inverter U-match Series Cassette Type Unit After connecting interconnecting and supply wiring be sure to shape the cables so (12) that they do not put undue force on the electrical covers or panels. Install covers over the wires. Incomplete cover installation may cause terminal overheating, electrical shock, or fire.

  • Page 7: Outline Of The Unit And Main Parts

    DC Inverter U-match Series Cassette Type Unit 2 Outline of the Unit and Main Parts Fig. 2.1 NOTICE: The connection pipe, drain pipe and power cord for this unit should be prepared by the user.

  • Page 8: Preparative For Installation

    DC Inverter U-match Series Cassette Type Unit 3 Preparative for Installation 3.1 Standard Accessory Parts The standard accessory parts listed below are furnished and should be used as required. Table 3.1 Indoor Unit Accessories Name Appearance Quantity Usage To connect with the hard Drain Hose PVC drain pipe To fix the installation...

  • Page 9: Selection Of The Installation Location

    DC Inverter U-match Series Cassette Type Unit Indoor Unit Accessories Name Appearance Quantity Usage Connect the panel and Bolt Assembly body(only for 18k unit) Table 3.2 Outdoor Unit Accessories Name Appearance Quantity Usage To plug the unused drain Drain Plug 1 or 3 hole Drainage...
  • Page 10 Unit：mm (inch) Fig. 3.1 Table 3.3 Model mm (inch) TU18HKI 255(10) 260(10-1/4) TU24HKI TU30HKI 340(13-3/8) TU36HKI 340(13-3/8)
  • Page 11 DC Inverter U-match Series Cassette Type Unit 3.2.2 Outdoor Unit Install the unit where it will not be tilted by more than 5°. During installation, if the outdoor unit has to be exposed to strong wind, it must be fixed securely. If possible, do not install the unit where it will be exposed to direct sunlight.

  • Page 12: Connection Pipe Requirement

    Item between Pipe Diameter × Indoor Unit Length wall Model Liquid m (feet) thickness) Outdoor mm (inch) Unit m (feet) Φ25×1.5 TU18HKI Φ6(Φ1/4) Φ12.7(Φ1/2) 50(164) 15(49-1/5) (Φ1×3/50) Φ25×1.5 TU24HKI Φ9.5(Φ3/8) Φ16(Φ5/8) 50(164) 15(49-1/5) (Φ1×3/50) Φ25×1.5 TU30HKI Φ9.5(Φ3/8) Φ16(Φ5/8) 50(164) 15(49-1/5) (Φ1×3/50)

  • Page 13: Electrical Requirement

    3.4 Electrical Requirement Electric Wire Size and Fuse Capacity. Table 3.5 Minimum Maximum Fuse Power Supply Circuit Overcurrent Capacity Model Ampacity Protection V/Ph/Hz 208V/230V TU18HKI ~60Hz 208V/230V TU24HKI ~60Hz 208V/230V TU30HKI ~60Hz 208V/230V TU36HKI ~60Hz 208V/230V TU42HKI ~60Hz 208V/230V TU48HKI ~60Hz Table 3.6...

  • Page 14: Installation Of The Unit

    DC Inverter U-match Series Cassette Type Unit Install the disconnect device with a contact gap of at least 3mm (1/8inch) in all poles nearby the units (Both indoor unit and outdoor unit).The appliance must be positioned so that the plug is accessible. Take 2 pieces of power cord of 0.75mm (AWG18) as the communication lines between indoor and outdoor unit, with their longest lengths of 50m (164feet).
  • Page 15 DC Inverter U-match Series Cassette Type Unit Table 4.1 Unit: mm (inch) Item Model TU18HKI (26-3/8) (22-1/2) (22-1/2) (19-1/2) (23-5/8) (9-1/2) (5-1/5) (9-1/4) (23-1/2) (26-1/5) For the units: 24k~42k Fig. 4.2 Table 4.2 Unit: mm (inch) Item Model TU24HKI (39-1/8)
  • Page 16 DC Inverter U-match Series Cassette Type Unit For the units: 48k Fig. 4.3 Table 4.3 Unit: mm (inch) Item Model 1040 TU48HKI (41) (31-1/8) (33-1/8) (35-7/8) (11-3/8) (5-1/4) ① Drilling of ceiling opening and installation of air conditioner must be performed by professionals! ②...
  • Page 17 DC Inverter U-match Series Cassette Type Unit 4.1.2 Installing the Main Body Unit Fig. 4.4 (1) Install the hoisting stand on the hoisting screw by using nuts and gaskets at both the upper and lower sides of the hoisting stand. To prevent the gasket from breaking off, a gasket anchor board can be helpful.

  • Page 18: Installation Of The Outdoor Unit

    DC Inverter U-match Series Cassette Type Unit (3) Insert the anchor bolts into the drilled holes, and drive the pins completely into the anchor bolts with a hammer (Fig. 4.7). Unit: mm(inch) Fig. 4.5 Fig. 4.6 Fig. 4.7 4.1.4 Leveling The water level test must be done after installing the indoor unit to make the unit is horizontal, as shown below.
  • Page 19 DC Inverter U-match Series Cassette Type Unit 4.2.1 Outdoor unit dimension Fig. 4.9 Table 4.4 Unit: mm (inch) Item Model TU18H3O 55(37-5/8) 395(15-1/2) 700(27-1/2) 560(22) 360(14-1/8) TU24H3O 980(38-5/8) 425(16-3/4) 790(31-1/8) 610(24) 395(15-1/2) TU30H3O TU36H3O 1105(43-5/8) 440(17-3/8) 1100(43-1/4) 630(24-7/8) 400(15-3/4) TU42H3O 960(37-3/4) 410(16-1/4) 1350(53-1/8)

  • Page 20: Installation Of The Connection Pipe

    DC Inverter U-match Series Cassette Type Unit Fig. 4.10 4.3 Installation of the Connection Pipe 4.3.1 Flare Processing (1) Cut the connection pipe with the pipe cutter and remove the burrs. (2) Hold the pipe downward to prevent cuttings from entering the pipe. (3) Remove the flare nuts at the stop valve of the outdoor unit and inside the accessory bag of the indoor unit, then insert them to the connection pipe, after that, flare the connection pipe with a flaring tool.
  • Page 21 DC Inverter U-match Series Cassette Type Unit (2) Do not bend the pipes in an angle more than 90°. (3) When pipes are repeatedly bent or stretched, the material will harden, making it difficult to bend or stretch them any more. Do not bend or stretch the pipes more than three times.
  • Page 22 DC Inverter U-match Series Cassette Type Unit Examine the connection pipe to see if it leaks, then take the treatment of heat insulation, as shown in the Fig. 4.14. Use the medium-sized sponge to insulate the coupler of the gas pipe. Fig.
  • Page 23 DC Inverter U-match Series Cassette Type Unit 4.3.4 Connecting the Pipe at the Outdoor Side Unit Tighten the flare nut of the connection pipe at the outdoor unit valve connector. The tightening method is the same as that as at the indoor side. Fig.

  • Page 24: Vacuum And Gas Leakage Inspection

    DC Inverter U-match Series Cassette Type Unit 4.3.7 Liquid Pipe and Drain Pipe (1) If the outdoor unit is installed lower than the indoor unit (See Fig. 4.17). 1) A drain pipe should be above ground and the end of the pipe does not dip into water. All pipes must be restrained to the wall by saddles.
  • Page 25 DC Inverter U-match Series Cassette Type Unit (3) Connect the hose used for evacuation to the vacuum pump. (4) Open the switch at the lower pressure side of the manifold valve assembly and start the vacuum pump. Meanwhile, the switch at the high pressure side of the manifold valve assembly should be kept closed, otherwise evacuation would fail.

  • Page 26: Installation Of The Drain Hose

    For the additional amount, see Table 4.6. Table 4.6 Item Additional Refrigerant Amount for Extra Pipe Model 45g per 1.5m (1.6 ounce per 5 feet ) TU18HKI TU24HKI TU30HKI 90g per 1.5m (3.2 ounce per 5 feet ) TU36HKI TU42HKI...
  • Page 27 DC Inverter U-match Series Cassette Type Unit (3) Condensate drain pipe should be connected into special drain system for air conditioner. 4.5.1 Installation of Drain Piping (1) Keep piping as short as possible and slope it downwards at a gradient of at least 1/100 so that air may not remain trapped inside the pipe.
  • Page 28 DC Inverter U-match Series Cassette Type Unit Indoor Unit 10±2mm(2/5±2/25inch) TU18HKI TU24HKI TU30HKI 15±3mm(3/5±1/10inch) TU36HKI TU42HKI TU48HKI (3) When unifying multiple drain pipes, install the pipes as Fig. 4.22. Select converging drain pipes whose gauge is suitable for the operating capacity of the unit (take the cassette type unit for example).
  • Page 29 DC Inverter U-match Series Cassette Type Unit Fig. 4.23 Fig. 4.24 Fig. 4.25 (8) Connection of drainage branch pipe to the standpipe or horizontal pipe of drainage main pipe. The horizontal pipe cannot be connected to the vertical pipe at a same height. It can be connected in a manner as shown below: No.1: Attach the 3-way connection of the drainage pipe joint as shown in Fig.
  • Page 30 DC Inverter U-match Series Cassette Type Unit Unit：mm(inch) Fig. 4.29 (2) Secure a downward gradient of 1/100 or more for the drain pipe. To accomplish this, mount supporting brackets at an interval of 1~1.5m (3-2/7~5feet). Fig. 4.30 4.5.4 Testing of Drain Piping After piping work is finished, check if drainage flows smoothly.

  • Page 31: The Panel Installation

    DC Inverter U-match Series Cassette Type Unit 4.6 The Panel Installation 4.6.1 Precautions (1) See the Figure below for the relationship of the front panel and the connecting pipe. Fig. 4.32 (2) Improper screwing of the screws may cause the troubles shown in Fig. 4.33. Fig.
  • Page 32 DC Inverter U-match Series Cassette Type Unit (4) Wire the swing flap motor and lamps to the main body according to the size of Terminals and the connection cord color as shown in Fig.4.35. Fig. 4.35 4.6.2 Installing the Panel (1) Place the panel at the unit, and latch the hooks beside and opposite the swing flap motor.

  • Page 33: Electrical Wiring

    DC Inverter U-match Series Cassette Type Unit 4.7 Electrical Wiring 4.7.1 Wiring Precautions Before obtaining access to terminals, all supply circuits must be disconnected. The rated voltage of the unit is as shown as Table 3.5 and Table 3.6. Before turning on, verify that the voltage is within the 187~252V range (for single phrase units).
  • Page 34 DC Inverter U-match Series Cassette Type Unit 3) Using a round terminal fastener or pliers, securely clamp a round terminal to each stripped wire end. 4) Position the round terminal wire, and replace and tighten the terminal screw with a screwdriver (Fig. 4.38). Fig.
  • Page 35 DC Inverter U-match Series Cassette Type Unit (4) Electric wiring between the indoor and outdoor units Single-phase units: 18k~30k Fig. 4.40 Single-phase units: 36k~42k Fig. 4.41...
  • Page 36 DC Inverter U-match Series Cassette Type Unit Single-phase units: 48k Fig. 4.42 (5) Electric wiring of indoor unit side Remove the electric box cover from the electric box sub-assy and then connect the wire.
  • Page 37 DC Inverter U-match Series Cassette Type Unit For the units: 18k~42k Fig. 4.43...
  • Page 38 DC Inverter U-match Series Cassette Type Unit For the units: 48k Fig. 4.44 The power cord and the wire of the fresh air valve are high-voltage, while the communication cord and connection wire of the wired controller are low-voltage. They should run separately against electromagnetic interference. The high-voltage and low-voltage lines should pass through the rubber rings at different electric box covers.

  • Page 39: Installation Of Controller

    DC Inverter U-match Series Cassette Type Unit If the indoor unit connection cord (to the outdoor unit) and power supply are wired incorrectly, the air conditioner may be damaged. Connect the indoor unit connection cord properly based on the corresponding marks as shown from Fig.4.40 to Fig.4.42.

  • Page 40: Test Running

    DC Inverter U-match Series Cassette Type Unit 6 Test Running 6.1 Trial Operation and Testing (1) The meaning of error codes as shown below: Table 6.1 Number Error code Error Remarks Compressor high pressure protection Indoor anti-freeze protection Compressor low pressure protection, refrigerant lack protection and refrigerant colleting mode Compressor high discharge temperature...
  • Page 41 DC Inverter U-match Series Cassette Type Unit Number Error code Error Remarks Indoor and outdoor mismatch 4-way valve direction changing protection Drive reset protection Over-current protection Communication error between main control and drive Drive module sensor error Drive module over temperature protection Zero passage protection AC current protection Drive current error...

  • Page 42: Working Temperature Range

    DC Inverter U-match Series Cassette Type Unit  Power and ON/OFF Indicating Lamp: It goes red when the unit is powered on while it goes white when the unit is started.  Timer Indicating Lamp: It goes on when the timer is set and goes off when it is not. Its display is in yellow. ...

  • Page 43: Troubleshooting And Maintenance

    After carrying out the check of the above items and taking relevant measures to solve the problems but the air-conditioning unit still does not function well, please stop the operation of the unit immediately and contact the local service agency designated by TOSOT. Only ask professional serviceman to check and repair the unit.

  • Page 44: Routine Maintenance

    DC Inverter U-match Series Cassette Type Unit 7.2 Routine Maintenance Only a qualified service person is allowed to perform maintenance. Before accessing to terminal devices, all power supply circuits must be disconnected. Do not use water or air of 50°C (122°F) or higher for cleaning air filters and outside panels.
  • Page 45 DC Inverter U-match Series Cassette Type Unit How to clean the air filter How to open the panel grille of the 18k/48k cassette type unit Remove the screws by a screwdriver as shown in the picture. Push those two fasteners and open the panel grille.
  • Page 46 DC Inverter U-match Series Cassette Type Unit How to clean the air filter 4. Disassemble the air purifier Remove the air purifier after removing the fixed screws on it. Some panel may not have the air purifier. 5. Clean the filer screen Clean the filer screen by a vacuum cleaner or wash it by flashing water.

This manual is also suitable for:

Tu24hkiTu30hkiTu36hkiTu42hkiTu48hkiTu18h3o ... Show all

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