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Split Aire Acondicionado MANUAL DE INST. MODELOS: MULTI INV 363 E MULTI INV 423 E Gracias por elegir nuestro aire acondicionado, para un correcto funciona- miento por favor lea detenidamente este manual antes de instalar o utilizar el equipo y guárdelo para futuras consultas.
This product must not be disposed together with the domestic waste. This product has to be disposed at an authorized place for recycling of electrical and electronic appliances. Thank you for purchasing Ducasa air conditioners. Before use, please read this manual carefully and keep it properly for further reference.
Contents Safety Precautions..................1 Installation Instructions................2 1 Installation Location and Matters Needing Attention.......... 2 2 Installation of the Outdoor Unit................4 3 Connection between Indoor and Outdoor Units ..........6 4 Refrigerant Charging and Trial Running ..............Working Principles of the Unit ..............11 Parts and Components of the Unit ............
Safety Precautions Safety Precautions Please read this manual carefully before use and operate correctly as instructed in this manual. Please especially take notice of the following two symbols Warning! It indicates improper operation which will lead to human casualty or sever injury. Cuation! It indicates improper operation which will lead to injury or property damage.
CUATION The unit installed in the following places is likely to run abnormally. If unavoidable, please contact the professional personnel at the Ducasa appointed service center. where is full of oil; alkaline soil off the sea;...
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Installation Instructions the dedicated one. 6) The earthing should be reliable and the earth wire should be connected to the dedicated device of the building by the professional personnel. Besides, the air switch coupled with the leakage current protection switch must be equipped, which is of enough capacity and of both magnetic and thermal tripping functions in case of the short circuit and overload.
Installation Instructions MULTI 363 POWER INDOOR UNIT A INDOOR UNIT C INDOOR UNIT D INDOOR UNIT B XT5X XT3X OUTDOOR UNIT Fig.2 e. Noise Precautions 1) The air conditioning unit should be installed where ventilation is in good condition, otherwise the working capability of the unit would be reduced or working noise would be increased.
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Installation Instructions MULTI 363 MULTI 423 1022 1087 1015 Fig.3 Fig. 4 2) During the transportation of the outdoor unit, two lifting ropes long enough must be used in four directions and the separation angle must be less than 40°prevent the center of unit deviating. 4) The unit should be installed on a concrete base frame with a height of 10cm.
Installation Instructions b. Capacity Level and Capacity Code of the Indoor and Outdoor Units Table 2 Capacity Level Capacity Code Indoor Unit Outdoor Unit 1) The outdoor unit with capacity level 36 can drive up to four sets of indoor units, while the outdoor unit 2) The sum of the capacity codes of the indoor units should be among 50%-150% of that of the outdoor unit.
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Installation Instructions Flare Nut Pipe Pipe Torque Wrench Ordinary Fig. 6 Table 5 Moments of Torque for Tightening Screws Diameter Wall Thickness mm Moment of Torque 15-30(N·m) 0.71 30-40(N·m) 45-50(N·m) 60-65(N·m) CUATION During the connection of the indoor unit and the refrigerant pipe, never pull any joints of the indoor unit by force;...
Installation Instructions 1) Bundle the refrigerant pipe and electric wire together with tape, and separate them from the drain pipe 2) Wrap the pipe from the bottom of the outdoor unit to the top of the pipe where it enters the wall. During the wrapping, the later circle should cover half of the former one.
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Installation Instructions refrigerant will be charged. Table 7 Model Total Liquid Pipe Lenght (a+b+c+d+e) Multi 363 Multi 423 Note: if the total refrigerant pipe length is larger than that listed in the table above, the additional 3) Example : MULTI 423 Fig.9 Table 8 Indoor Unit Serial No.
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Installation Instructions Table 11 Refrigerant Pipe Diameter Total Length(m) Additional Refrigerant Charge(kg) Total c. Items to be checked after the Installation Table 12 Items to be Checked Possible Errors Check Results Has each part and component the of unit The unit may fall off, vibrate or generate installed securely? noise.
Working Principles of the Unit Working Principles of the Unit Schematic Diagram Multi Inverter Heat Pump Multi VRF System Fig. 10 Schematic Diagram of Free Match Series Inverter Heat Pump Multi VRF System The outdoor and indoor units start to work once the power is switched on. During the cooling operation, the low temperature, low pressure refrigerant gas from the heat exchanger of each indoor unit gets together and then is taken into the compressor to be compressed into high temperature, high pressure gas, which will soon go to the heat exchanger of the outdoor unit to exchange heat with the outdoor air and then is turned into...
Parts and Components of the Unit Parts and Components of the Unit System Structure Outdoor Unit Duct Type Indoor Duct Type Indoor Cassette Type Wall Mounted Unit(Round air Unit(Rectangular Indoor Unit Indoor Unit outlet) air outlet) Fig. 11 For the free match series DC inverter GMV multi VRF air conditioning system, one outdoor unit is able to them, the cassette type and the wall-mounted indoor units should be controlled by the remote controller, while the ducted type can be controlled by either the remote controller or the wired controller.
5) Check if the installation of the outdoor is secure. If there is something abnormal, please contact the Ducasa appointed service center. 6) When restarting the unit which is not used for a long time, switch on the main power supply eight hours ahead, helpful for a successful startup.
In the event of abnormal conditions (like, stinky smell), please shut off the main power supply immediately and then contact the Ducasa appointed service center; otherwise the continuous abnormal running Do not repair the air conditioning personally but instead contact the professionally skilled personnel Ducasa 1 Please check the following items before contact the maintenance serviceman.
Troubleshooting Table 14 Conditions Causes When restart the unit soon after it is The overload protection switch of the unit stopped. let the startup delayed for three minutes. The unit does not run The unit will stand by for approximate As soon as power is on.
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Troubleshooting Refrigerant Refrigerant or blockage or blockage Flash 10 protection protection times (available for (available for the residential the residential outdoor unit) outdoor unit) circuit of the circuit of the Shown Flash indoor ambient indoor ambient as Table once temperature temperature sensor sensor...
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Troubleshooting Shown Flash 7 as Table times Overload Overload Flash 3 Flash 3 Flash 3 protection protection times times times Anti cold blow protection Indoor unit water Flash Flash Quick Quick Quick operation operation Refrigerant Refrigerant Quick Quick recovery mode recovery mode Drive module IPM Drive...
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Troubleshooting Drive board ambient Drive board temperature ambient Flash 3 Flash 3 Flash 3 sensor error (for temperature times times times the commercial sensor error unit) DC link DC link Flash 3 Flash 3 Flash 3 high voltage low voltage times times times...
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Troubleshooting circuit of the temperature sensor at the inlet of the condenser coil ( for the commercial unit) circuit of the temperature sensor at the outlet of the condenser coil ( for the commercial unit) Memory card error Frequency degradation for module circuit protection (for phase circuit)
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Troubleshooting Compressor Flash 12 phase circuit times detection error DC link voltage Flash 20 drop error times Zero detection Flash 17 circuit error times Nominal (capability test code) heating (capability test code) The words in gray means the corresponding function is unavailable. Table 16 Error Code Error Description...
Once errors are displayed on the controller, please shut off the air conditioning unit and contact the professionally skilled personnel for troubleshooting. 4 After-Sales Service If there is any quality or other issue, place contact the Ducasa after-sales service center.
Function Description Function Description Refrigerant Recovery The refrigerant can be recovered from either the indoor unit or the outdoor unit. From the outdoor unit: it is available to recover the refrigerant from the outdoor unit by pressing “SW3”for a long time period. From the indoor unit: when the unit is powered on and runs under the COOL mode, it is available within controller in three seconds with “F0”displayed.
Performance Parameters Performance Parameters Rated Working Conditions of the Air Conditioning Unit Table 18 Working Temperature Range Indoor side state Outdoor side stae Dry bulb temp. Wet bulb temp. Dry bulb temp. Wet bulb temp. Rated Cooling Max. cooling Min. cooling —...
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