Sharp GX-X18SCR Installation And Operation Manual

Sharp GX-X18SCR Installation And Operation Manual

Cassette type room air conditioner

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INDOOR UNIT
GX-X18SCR
GX-X24SCR
GX-X30SCR
GX-X42SCR
OUTDOOR UNIT
GU-X18SCR
GU-X24SCR
GU-X30SCR
GU-X42SCR
CASSETTE TYPE ROOM AIR CONDITIONER
INSTALLATION AND OPERATION MANUAL

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Summary of Contents for Sharp GX-X18SCR

  • Page 1 CASSETTE TYPE ROOM AIR CONDITIONER INSTALLATION AND OPERATION MANUAL INDOOR UNIT OUTDOOR UNIT GX-X18SCR GU-X18SCR GX-X24SCR GU-X24SCR GU-X30SCR GX-X30SCR GX-X42SCR GU-X42SCR...
  • Page 3 Information on the Disposal of this Equipment and its Batteries IF YOU WISH TO DISPOSE OF THIS EQUIPMENT OR ITS BATTERIES, DO NOT USE THE ORDINARY WASTE BIN, AND DO NOT PUT THEM INTO A FIREPLACE! Used electrical and electronic equipment and batteries should always be collected and treated SEPARATELY in accordance with local law.
  • Page 5: 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 ..............7 3.4 Electrical Requirement ................
  • Page 6: Safety Precautions

    DC Inverter Cassette Type Unit 1 Safety Precautions This mark indicates procedures which, if improperly performed, might lead to the WARNING! death or serious injury of the user. This mark indicates procedures which, if improperly performed, might possibly result CAUTION! in personal harm to the user, or damage to property.
  • Page 7 DC Inverter Cassette Type Unit (14). During installation, attach the refrigerant piping securely before running the compressor. If the compressor is not attached and the stop valve is open during pump-down, air will be sucked in when the compressor is run, causing abnormal pressure in the freezer cycle which will lead to breakage and even injury.
  • Page 8: Outline Of The Unit And Main Parts

    DC Inverter Cassette Type Unit 2 Outline of the Unit and Main Parts Indoor 1. Drainage device 2. Drainage pipe 3. Air flow flap Outdoor 4. Connection pipe Air inlet 5. Wireless Controller 6. Big handle 7. Liquid Pipe 8. Gas pipe 9.
  • Page 9: Preparative For Installation

    DC Inverter 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 1 Indoor Unit Accessories Name Appearance Q'ty Usage To connect with the hard PVC drain Drain Hose pipe To fix the hook on the cabinet of the...
  • Page 10: Selection Of The Installation Location

    DC Inverter Cassette Type Unit 3.2 Selection of the Installation Location WARNING! The unit must be installed where strong enough to withstand the weight of the unit and fixed securely, otherwise the unit would topple or fall off. CAUTION! ① . Do not install where there is the danger of combustible gas leakage. ②...
  • Page 11 DC Inverter Cassette Type Unit Table 3 Models H(mm) GX-X18SCR GX-X24SCR GX-X30SCR GX-X42SCR Fig.2 3.2.2 Outdoor Unit WARNING! ① . Install the unit where it will not be tilted by more than 5°. ② . During installation, if the outdoor unit has to be exposed to strong wind, it must be fixed securely.
  • Page 12: Connection Pipe Requirement

    Indoor Unit and Diameter × wall Model Liquid Outdoor Unit (m) thickness) (mm) GX-X18SCR GU-X18SCR GX-X24SCR GU-X24SCR Φ25×1.5 GX-X30SCR GU-X30SCR GX-X42SCR GU-X42SCR The connection pipe should be insulated with proper water-proof insulating material. The pipe wall thickness shall be 0.5-1.0mm and the pipe wall shall be able to withstand the pressure of 6.0 MPa.
  • Page 13 DC Inverter Cassette Type Unit Table 6 Minimum Sectional Area of Power Capability of Air Model Power Cable and Earth line Supply Switch(A) GU-X18SCR GU-X24SCR 220-240V~ 50Hz GU-X30SCR GU-X42SCR The fuse is located on the main board. ① . Install the disconnect device with a contact gap of at least 3mm in all poles nearby the units ②...
  • Page 14: Installation Of The Unit

    DC Inverter Cassette Type Unit 4 Installation of the Unit 4.1 Installation of the Indoor Unit 4.1.1 Indoor unit dimension Fig.4 Table 7 Item Model GX-X18SCR GX-X24SCR GX-X30SCR GX-X42SCR 4.1.2 Installing the Main Body Unit Fig.5...
  • Page 15: Installation Of The Outdoor Unit

    DC Inverter Cassette Type Unit (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. (2).
  • Page 16 DC Inverter Cassette Type Unit 4.2.1 Outdoor unit dimension Fig.10 Table 8 Unit: mm Item Model GU-X18SCR GU-X24SCR GU-X30SCR 1349 GU-X42SCR 4.2.2 Condensate Drainage of the Outdoor Unit(Only for the heat pump unit) (Fig.11) (1). It is required to install a drain pipe for the outdoor unit to drain out the condensate water during heating operation.
  • Page 17: Installation Of The Connection Pipe

    (4). When bending the pipe, do not bend it as is. The pipe Fig.14 will be collapsed. In this case, cut the heat insulating pipe with a sharp cutter as shown in Fig.14, and bend it after exposing the pipe. After bending the pipe as you want, be sure to...
  • Page 18 DC Inverter Cassette Type Unit CAUTION! ① . To prevent breaking of the pipe, avoid sharp bends. Bend the pipe with a radius of curvature of 150 mm or over. ② . If the pipe is bent repeatedly at the same place, it will break.
  • Page 19 DC Inverter Cassette Type Unit Table 9 Flare nut tightening torque Pipe Diameter Tightening Torque 1/4˝(Inch) 15-30 (N·m) 3/8˝(Inch) 35-40 (N·m) 5/8˝(Inch) 60-65 (N·m) 1/2˝(Inch) 45-50 (N·m) CAUTION! Be sure to connect the gas pipe after connecting the liquid pipe completely. 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.
  • Page 20: Vacuum And Gas Leakage Inspection

    DC Inverter Cassette Type Unit 4.3.7Liquid Pipe and Drain Pipe Sealed If the outdoor unit is installed lower than the indoor unit (See Fig.18) Saddle (1). A drain pipe should be above ground and the end of the pipe does not dip into water.
  • Page 21 DC Inverter Cassette Type Unit (5). The evacuation duration depends on the unit’s capacity, generally, 20 minutes for the 18K units, 30 minutes for the 24/36K units, and verify if the pressure gauge at the low pressure side of the manifold valve assembly reads -1.0Mp (-75cmHg), if not, it indicates there is leak somewhere.
  • Page 22: Installation Of The Drain Hose

    DC Inverter Cassette Type Unit When the height difference between the indoor unit and outdoor unit is larger than 10 meters, an oil bend should be employed for every 6 meters. Outdoor Oil bend Indoor Oil bend Fig.21 4.5 Installation of the Drain Hose 4.5.1 Installation of Drain Piping Keep piping as short as possible and slope it downwards at a gradient of at least 1/100 so (1).
  • Page 23 DC Inverter Cassette Type Unit Tighten the clamp until the screw head is less Insulate the pipe clamp and the drain hose using heat than 4mm from the hose. insulation sponge. Metal clamp Metal clamp (accessory) Drain hose (accessory) Insulation sponge (accessory) Grey tape (accessory) (3).
  • Page 24 DC Inverter Cassette Type Unit 3-way connection Connection of drain elbow of drainage pipe joint Connection of horizontal pipe Fig.27 Fig.28 Fig.29 4.5.3 Precautions When Doing Riser Piping Work (1). Make sure that heat insulation work is executed on the following 2 spots to prevent any possible water leakage due to dew condensation.
  • Page 25: The Panel Installation

    DC Inverter Cassette Type Unit Drain hose(attachment) Fig.32 4.5.4 Testing of Drain Piping After piping work is finished, check if drainage flows smoothly. Shown in the Fig.33, Add approximately 1liter of water slowly into the drain pan and check drainage flow during COOL running. Drain hose Test hole cover Drain vent for repair use (plastic stopper...
  • Page 26 DC Inverter Cassette Type Unit (2). Improper screwing of the screws may cause the troubles shown in Fig.35. Condensate Fig.35 (3). If gap still exists between ceiling and decoration panel after tightening the screws, readjust the height of the indoor unit. (Fig.36) Fig.36 (4).
  • Page 27: Electrical Wiring

    DC Inverter Cassette Type Unit (4). Adjust the panel along the direction indicated by the arrow as shown in Fig.38. (5). Tighten the screws until the thickness of the sealing material between the panel and the indoor unit reduces to 5-8mm. Fig.38 4.7 Electrical Wiring 4.7.1 Wiring Precautions...
  • Page 28 DC Inverter Cassette Type Unit ⑤ . Use a special branch circuit breaker and receptacle matched to the capacity of the air conditioner. ⑥ . The special branch circuit breaker is installed in the permanent wiring. Always use a circuit that can trip all the poles of the wiring and has an isolation distance of at least 3mm between the contacts of each pole.
  • Page 29 ⑤ . Always fasten the outside covering of the connection cord with cord clamps. (If the insulator is not clamped, electric leakage may occur.) ⑥ . Always connect the ground wire. (4). Electric wiring between the indoor and outdoor units Single-phase units(18K~30K) GU-X18SCR+GX-X18SCR ① . Power cord 3×1.5mm (H07RN-F) ② . Power cord 3×1.0mm (H05RN-F) ③...
  • Page 30 DC Inverter Cassette Type Unit Single-phase units(42K) GU-X42SR+GX-X42SR ① . Power cord 3×2.5mm (H07RN-F) ② . Power cord 3×1.0mm (H05RN-F) ③ . Communication Cords 2×0.75mm (H05RN-F) Fig.42 (5). Electric wiring of indoor unit side Remove the electric box cover from the electric box sub-assy and then connect the wire. Power supply terminal board Electric...
  • Page 31 DC Inverter Cassette Type Unit CAUTION! ① . 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. ②...
  • Page 32: Test Running

    DC Inverter Cassette Type Unit Routing of External Power Lines Power lines should go along the right side plate and be fixed to the fixation hook with binding wires to keep no contact with pipelines. Communication lines between indoor and outdoor units also should go along the right side plate and keep away from power lines.
  • Page 33 DC Inverter Cassette Type Unit Indoor fan motor error Full water protection Indoor ambient temperature sensor error Evaporator temperature sensor error Condenser temperature sensor error Outdoor ambient temperature sensor error Discharge temperature sensor error Temperature sensor error of wired controller Capacity code error Outdoor memory chip error Electric box sensor error...
  • Page 34: Working Temperature Range

    DC Inverter Cassette Type Unit (2). Instructions to the Error Indicating Lamps on the Panel of the Cassette Type Unit. Receiver "88" Dispaly "Auto" Button Power Timer "Test" Button Indicating Lamp Indicating Lamp Fig.46 Power and ON/OFF Indicating Lamp: ◆ It goes red when the unit is powered on while it goes white when the unit is started.
  • Page 35: Remote Controller User Guide

    DC Inverter Cassette Type Unit 6 Remote Controller User Guide CAUTION ! Make sure there is no obstruction between the wireless remote controller and the signal ① receiver. The signal receiving distance of the wireless remote controller can be up to 10 metres. ②...
  • Page 36 DC Inverter Cassette Type Unit Name Function Description Signal ● Signal transmitter transmitter ● Press this button, and the unit will be turned on; press it once more, and the ON/OFF unit will be turned off. When turning off the unit, the Sleep function will be button canceled, but the presetting time is still remained.
  • Page 37 DC Inverter Cassette Type Unit ● Press this button to set up the swing angle, which circularly changes as below: ● When the guide louver starts to swing up and down, if SWING funtions is canceled, the air guide louver will stop and remains at the current position.
  • Page 38 DC Inverter Cassette Type Unit ● By pressing this button it is allowed to select displaying the indoor setting temperature or the indoor ambient temperature. ● Indoor setting temperature is default after the indoor unit is energized initially. ● By pressing the TEMP button, when the temperature symbol TEMP displayed, the indoor...
  • Page 39 DC Inverter Cassette Type Unit heating quickly so that the ambient temperature will approach the preset temperature as soon as possible. ● About lock Press + and - buttons simultaneously to lock or unlock the keyboard. If the wireless remote controller is locked, the icon will be displayed on it, in which case, any press will get no response but with the mark blinking for three times.
  • Page 40: Troubleshooting And Maintenance

    Note: 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 SHARP. Only ask professional serviceman to check and repair the unit.
  • Page 41: Routine Maintenance

    DC Inverter 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 or higher for cleaning air filters and outside panels. Notes: Do not operate the air conditioner with the filter uninstalled, otherwise dust would come into ①...
  • Page 42 DC Inverter Cassette Type Unit 2. Disassemble the air inlet grille Open the air inlet grille at 45°, raise it and remove the grille. 3. Disassemble the filter screen Draw out the filter screen and remove it. Filter screen 4. Disassemble the air purifying filter Filtering element Remove the air purifying filter after Support...

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