Mitsubishi Electric SEZ-A12 Installation Manual Download Page 1 | Manualshive

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Air-Conditioners

SEZ-A12, A18, A24AR

English

INSTALLATION MANUAL

For safe and correct use, please read this installation manual thoroughly before installing the air-conditioner
unit.

FOR INSTALLER

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Summary of Contents for SEZ-A12

Page 1: ...Air Conditioners SEZ A12 A18 A24AR English INSTALLATION MANUAL For safe and correct use please read this installation manual thoroughly before installing the air conditioner unit FOR INSTALLER ...

Page 2: ...ient or there is incomplete elec trical work it could result in a fire or an electric shock Attach the electrical part cover to the indoor unit and the service panel to the outdoor unit securely If the electrical part cover in the indoor unit and or the service panel in the outdoor unit are not attached securely it could result in a fire or an electric shock due to dust water etc Be sure to use th...

Page 3: ...ntaining metals tin plated or metal netting use a chemically treated wooden piece 20 mm or thicker between the wall and the piping or wrap 7 to 8 turns of insulation vinyl tape around the piping Units should be installed by licensed contractor accordingly to local code require ment SUZ A18 A24AR A D C A B 42 930 7 100 700 100 29 12 5 120 240 77 5 955 215 25 H J I G J 5027 1016 7 100 700 880 100 40...

Page 4: ...turdy beams of at least 6 cm square for beam pitch of 90 cm or less or of at least 9cm square for beam pitch of 90 180 cm A Ceiling B Rafter C Beam D Roof beam 4 1 2 Ferro concrete structures Fig 4 2 Secure the suspension bolts using the method shown or use steel or wooden hang ers etc to install the suspension bolts E Use inserts rated at 100 150 kg each procure locally F Suspension bolts M10 3 8...

Page 5: ... pipe length exceeds 7 m additional refrigerant R410A charge is required The outdoor unit is charged with refrigerant for 7 m pipe length SEZ A12AR 30g m SEZ A18AR 50g m SEZ A24AR 50g m Piping preparation Refrigerant pipes of 3 5 7 10 and 15 m are available as optional items 1 Table below shows the specifications of pipes commercially available 2 Ensure that the 2 refrigerant pipes are well insula...

Page 6: ... torque mm mm N m ø6 35 17 14 18 ø9 52 22 34 42 ø12 7 26 49 61 ø15 88 29 68 82 Warning Be careful of flying flare nut Internally pressurized Remove the flare nut as follows 1 Loosen the nut until you hear a hissing noise 2 Do not remove the nut until the gas has been completely released i e hiss ing noise stops 3 Check that the gas has been completely released and then remove the nut Outdoor unit ...

Page 7: ...ve After refrigerant pipes are connected and evacuated fully open all stop valves on gas and liquid pipe sides Operating without fully opening lowers the performance and causes trouble Tighten the cap to the service port to obtain the initial status Retighten the cap Leak test Close Open Hexagonal wrench Stop valve 4 to 5 turns Stop valve or the vacuum pump with the function to prevent the back fl...

Page 8: ...cable and in out connecting cable locally and use remote control cable supplied with the unit 3 Securely connect the power cable and the in out connecting cable and the remote control cable to the terminal blocks 4 Secure the cables with clamps inside the electric component box 5 Attach the electric component cover as it was Fix power supply cable and indoor outdoor cable to control box by using b...

Page 9: ...ller cord in order to run the remote controller cord from the back then seal the hole with putty Run the remote controller cord through the cut out upper case then seal the cut out notch with putty similarly as above B 1 To lead the remote controller cord from the back of the controller B 2 To run the remote controller cord through the upper portion 3 For direct installation on the wall C Wall D C...

Page 10: ...e canvas duct for connecting the indoor unit and the duct Fig 8 1 Use fire proof material for the duct parts Make sure that the duct has sufficient heat insulation A Electrical parts box B Canvas duct C Air outlet flange D Air outlet duct E Air filter procure locally F Air outlet grille G Air intake grille H Ceiling I Drainage pan J Air intake K Air outlet L Allow clearance to avoid short cycling ...

Page 11: ...s 2 3 carefully 3 Please attach filter rail 3 as per the diagram screw 6 Please connect rails 2 3 carefully 4 Seal 6 Upright position here A Control box B Drain pan C Air tight seal Level with edge A A 5 4 C C 4 3 5 6 2 1 Fig 9 3 9 3 Filter rail installation Bottom air intake Fig 9 3 1 Transportation support remove Throw away 2 Please move the plate position Please use the screws removed 3 Please ...

Page 12: ...r onto rail 3 A Control box B Drain pan D Filter E Rail 2 F Rail 3 Fig 9 4 1 2 B A E D F Fig 9 5 2 1 A E D F A F H G E 9 5 Filter installation points Bottom air intake Fig 9 5 1 Insert the filter into rail 2 2 Hook the filter onto rail 3 3 Bend the clamp to hold the filter A Control box D Filter 1 E Rail 2 F Rail 3 G Bend H Clamp 5 ...

Page 13: ...e op erational season 10 Test run 10 2 Test run The following 3 methods are available 10 2 1 Using wired remote controller Fig 10 1 1 Turn on the power at least 12 hours before the test run 2 Press the TEST button twice TEST RUN liquid crystal display 3 Press the Mode selection button Make sure that wind is blown out 4 Press the Mode selection button and switch to the cooling or heating mode Make ...

Page 14: ...tity specified for the refrigerating cycle Caution Do not discharge the refrigerant into the atmosphere Take care not to discharge refrigerant into the atmosphere during installa tion reinstallation or repairs to the refrigerant circuit For additional charging charge the refrigerant from liquid phase of the gas cylinder If the refrigerant is charged from the gas phase composition change may occur ...

Page 15: ... SEZ C Master remote controller D Subordinate remote controller E Standard 1 1 Refrigerant address 00 F Simultaneous two groups Refrigerant address 01 G Simultaneous three groups Refrigerant address 02 H Simultaneous four groups Refrigerant address 03 I Indoor controller board Refrigerant address 00 Refrigerant address 01 Refrigerant address 02 Refrigerant address 03 The setup at the time shipment...

Page 16: ...EC Electromagnetic Compatibility Directive 89 336 EEC This product is designed and intended for use in the residential commercial and light industrial environment HEAD OFFICE MITSUBISHI DENKI BLDG 2 2 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN BG79S993H01 The product at hand is based on the following EU regulations Printed in Thailand ...

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