Related Manuals for Midea AOU-71HRDC1
Summary of Contents for Midea AOU-71HRDC1
- Page 1 Condensing units Dynamic inverter PRO AOU-71HRDC1 AOU-105HRDC3 AOU-140HRDC3 AOU-180HRDC3...
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Page 2: Outdoor Unit Installation Instructions
Outdoor Unit Installation The area must be free of combustible gases √ Outdoor Unit Installation Instructions and chemicals. √ The pipe length between the outdoor and Step 1: Select installation location. indoor unit may not exceed the maximum The outdoor unit should be installed in the allowable pipe length. - Page 3 Page 2 ...
- Page 4 2. Insert the drain joint into the hole in the base NOTE: The minimum distance between the pan of the unit. outdoor unit and walls described in the installation guide does not apply to airtight 3. Rotate the drain joint 90° until it clicks in place rooms.
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- Page 6 Refrigerant Piping Connection Instructions CAUTION If the outdoor unit is installed higher than CAUTION the indoor unit: The branching pipe must be installed • -It is recommended that vertical suction horizontally. An angle of more than 10° risers not be upsized. Proper oil return to may cause malfunction.
- Page 7 Step 2: Remove burrs. 6. Place flaring tool onto the form. Burrs can a ect the air-tight seal of refrigerant 7. Turn the handle of the flaring tool piping connection. They must be completely clockwise until the pipe is fully flared. Flare removed.
- Page 8 Installation Of The Throttle. (Some Models) CAUTION Ensure to wrap insulation around the • piping. Direct contact with the bare piping may result in burns or frostbite. Make sure the pipe is properly connected. • Over tightening may damage the bell mouth and under tightening may lead to leakage.
- Page 9 Wiring Safety Precautions CAUTION • Connect the outdoor wires before WARNING connecting the indoor wires. • Make sure you ground the unit. The • Be sure to disconnect the power supply grounding wire should be away from gas before working on the unit. pipes, water pipes, lightning rods, telephone or other grounding wires.
- Page 10 Test Run f. Check to see that the drainage system is Before Test Run unimpeded and draining smoothly. A test run must be performed after the entire g. Ensure there is no vibration or abnormal system has been completely installed. Confirm noise during operation.
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Page 11: European Disposal Guidelines
European Disposal Guidelines Users in European Countries may be required to properly dispose of this unit. This appliance contains refrigerant and other potentially hazardous materials. When disposing of this appliance, the law requires special collection and treatment. DO NOT dispose of this product as household waste or unsorted municipal waste. -
Page 12: Information Servicing
Information Servicing (Required for the units adopt R32/R290 Refrigerant only) 1. Checks to the area Prior to beginning work on systems containing flammable refrigerants, safety checks are necessary to ensure that the risk of ignition is minimised. For repair to the refrigerating system, the following precautions shall be complied with prior to conducting work on the system. - Page 13 7. Ventilated area Ensure that the area is in the open or that it it adequately ventilated before breaking into the system or conducting any hot work. A degree of ventilation shall continue during the period that the work is carried out.
- Page 14 10. Repairs to sealed components 10.1 During repairs to sealed components, all electrical supplies shall be disconnected from the equipment being worked upon prior to any removal of sealed covers, etc. If it is absolutely necessary to have an electrical supply to equipment during servicing, then a permanently operating form of leak detection shall be located at the most critical point to warn of a potentially hazardous situation.
- Page 15 14. Leak detection methods The following leak detection methods are deemed acceptable for systems containing flammable refrigerants. Electronic leak detectors shall be used to detect flammable refrigerants, but the sensitivity may not be adequate, or may need re-calibration.(Detection equipment shall be calibrated in a refrigerant-free area.) Ensure that the detector is not a potential source of ignition and is suitable for the refrigerant.
- Page 16 When the final OFN charge is used, the system shall be vented down to atmospheric pressure to enable work to take place. This operation is absolutely vital if brazing operations on the pipe-work are to take place. Ensure that the outlet for the vacuum pump is not closed to any ignition sources and there is ventilation available.
- Page 17 f) Make sure that cylinder is situated on the scales before recovery takes place. g) Start the recovery machine and operate in accordance with manufacturer s instructions. h) Do not overfill cylinders. (No more than 80% volume liquid charge). i) Do not exceed the maximum working pressure of the cylinder, even temporarily. j) When the cylinders have been filled correctly and the process completed, make sure that the cylinders and the equipment are removed from site promptly and all isolation valves on the equipment are closed off.
- Page 18 20. Transportation, marking and storage for units 1. Transport of equipment containing ammable refrigerants Compliance with the transport regulations 2. Marking of equipment using signs Compliance with local regulations 3. Disposal of equipment using ammable refrigerants Compliance with national regulations 4.
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