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Содержание MXZ-8A140VA

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Страница 2: ...rrectly and dust and moisture enter the unit electric shock or fire may result When installing or moving the air conditioner use only the specified refriger ant R410A to charge the refrigerant lines Do not mix it with any other refrig erant and do not allow air to remain in the lines Air enclosed in the lines can cause pressure peaks resulting in a rupture and other hazards Use only accessories au...

Страница 3: ...es that carried R22 refriger ant Replace the existing flare nuts and flare the flared sections again Do not use thin pipes Refer to page 6 Store the pipes to be used during installation indoors and keep both ends of the pipes sealed until just before brazing Leave elbow joints etc in their packaging If dust debris or moisture enters the refrigerant lines oil dete rioration or compressor breakdown ...

Страница 4: ...d Refer to the table below for possible 2 8 room indoor unit combinations Verification The rated capacity should be determined by observing the table below The unit s quantities are limited in 2 to 8 units For the next step make sure that the total rated capacity selected will stay in a range of 4 4 18 5 kW Example MSZ 60 6 0 SEZ 35 3 5 SLZ 35 3 5 Total rated capacity SEZ 25 2 5 18 0 18 5 kW SLZ 2...

Страница 5: ...r and above only Fig 3 12 No more than three units must be installed side by side In addition leave space as shown Do not install the optional air outlet guides for upward airflow 3 Obstacles at front only Fig 3 13 When using an optional air outlet guide the clearance is 1000 mm or more 4 Obstacles at front and rear only Fig 3 14 When using an optional air outlet guide the clearance is 1000 mm or ...

Страница 6: ... thicknesses specified in the table to the below Make sure the insides of the pipes are clean and do not contain any harmful contaminants such as sulfuric com pounds oxidants debris or dust Warning When installing or moving the air conditioner use only the specified refriger ant R410A to charge the refrigerant lines Do not mix it with any other refriger ant and do not allow air to remain in the li...

Страница 7: ...ox Flare connection employed No brazing In case of using 2 branch boxes Branch box 1 2 branches pipe joint optional parts Branch box 2 Conversion formula 1 4 F ø6 35 3 8 F ø9 52 1 2 F ø12 7 5 8 F ø15 88 3 4 F ø19 05 5 3 Addition of refrigerant Additional charging is not necessary for this unit if the total pipe length b1 b2 a1 a2 a3 a4 a5 a6 a7 a8 does not exceed 40 m If the total pipe length exce...

Страница 8: ... series indoor unit Indoor unit kW 35 50 60 71 type Pipe size Liquid ø6 35 ø6 35 ø9 52 ø9 52 ømm Gas ø12 7 ø12 7 ø15 88 ø15 88 When using 35 50 type indoor unit of P series use the flare nut attached to the indoor unit Do not use the flare nut in the indoor unit accessory If it is used a gas leakage or even a pipe extraction may occur When bending the pipes be careful not to break them Bend radii ...

Страница 9: ...iping side I Direction the refrigerant flows in J Wrench hole K Operation section 5 8 Airtight test and evacuation 1 Airtight test Fig 5 9 Airtight test should be made by pressurizing nitrogen gas For the test method refer to the following figure 1 Connecting the testing tool Make a test with the stop valve closed Be also sure to pressurize both liquid or high pressure pipe and gas or low pressure...

Страница 10: ...C Valve D 3 way joint E Vacuum pump F System analyzer G Lo knob LO HI G H N D C E C A B M L K J I F Fig 5 10 H Hi knob I To branch box J Outdoor unit K Stop valve L Liquid pipe or high pressure pipe M Gas pipe or low pressure pipe N Service port 2 Evacuation Fig 5 10 Evacuation should be made from the service port provided on the outdoor unit s stop valve to the vacuum pump commonly used for both ...

Страница 11: ...ller 3 2 Group operation between different refrigerant systems 3 3 Connection of M NET adapter to outdoor unit Master controller G 50 etc Power supply unit 3 branch type 3 branch type 3 branch type 3 branch type 7 1 Outdoor unit Fig 7 1 1 Remove the service panel 2 Wire the cables referring to the Fig 7 1 A Earth terminal B Terminal block C Clamp D Service panel E Wire the cables so that they do n...

Страница 12: ...s E Power supply single phase AC220 230 240 V 50 Hz AC220 V 60 Hz Max Permissive System Impedance 0 22 Ω Note 1 Power supply input Outdoor unit only Connect the lines C D in accordance with the terminal block names to ensure correct polarity When using twisted wire for the wiring the use of round terminal is required 1 A breaker with at least 3 mm contact separation in each pole shall be provided ...

Страница 13: ...indoor branch box connecting cables directly to the units no intermediate connections Intermediate connections can lead to communication errors if water enters the cables and causes insufficient insulation to ground or a poor electrical contact at the intermediate connection point If an intermediate connection is necessary be sure to take measures to prevent water from entering the cables 7 Electr...

Страница 14: ...ce is less than 1 MΩ Insulation resistance After installation or after the power source to the unit has been cut for an extended period the insulation resistance will drop below 1 MΩ due to refrigerant accumulat ing in the compressor This is not a malfunction Perform the following procedures 1 Remove the wires from the compressor and measure the insulation resistance of the compressor 2 If the ins...

Страница 15: ...upply F Procure locally G Max 10m CN51 X 5 4 3 A C D 5 E 1 B G Y X Y L1 L2 F L1 Error display lamp L2 Compressor operation lamp X Y Relay Coil standard of 0 9W or less for DC 12V X Y Relay DC1mA 9 4 Auto change over Operation mode locking func tion by external signal CN3S A Remote control panel B Relay circuit C External input adapter PAC SC36NA D Outdoor unit control board E Relay power supply F ...

Страница 16: ...73 23 EEC Electromagnetic Compatibility Directive 89 336 EEC This product is designed and intended for use in the residential commercial and light industrial environment HEAD OFFICE TOKYO BLDG 2 7 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN Printed in Japan BG79U438H04 The product at hand is based on the following EU regulations ...

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