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INSTALLATION MANUAL

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

Air-Conditioners OUTDOOR UNIT

MXZ-8B140,160VA-A

FOR INSTALLER

HFC

utilized

R410A

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Содержание MXZ-160VA-A

Страница 1: ...TALLATION MANUAL For safe and correct use please read this installation manual thoroughly before installing the air conditioner unit Air Conditioners OUTDOOR UNIT MXZ 8B140 160VA A FOR INSTALLER HFC utilized R410A ...

Страница 2: ...ock or ﬁre may result When installing or relocating or servicing the air conditioner use only the speciﬁed refrigerant R410A to charge the refrigerant lines Do not mix it with any other refrigerant and do not allow air to remain in the lines If air is mixed with the refrigerant then it can be the cause of abnormal high pressure in the refrigerant line and may result in an explosion and other hazar...

Страница 3: ...s 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 may ...

Страница 4: ...serving 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 as shown below MXZ 8B140 3 0 18 5kw MXZ 8B160 3 0 20 2kw Example MXZ 8B140 MSZ 60 6 0 SEZ 35 3 5 SLZ 35 3 5 SEZ 25 2 5 SLZ 25 2 5 Indoor unit type 15 20 22 25 35 42 50 60 71 80 100 1 Rated capacity Cooling kW 1 5 2 0 2 2 2 5 3 5 4 2 5 0 6...

Страница 5: ... 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 Obstacles at front only Fig 3 13 When using an optional air outlet guide the clearance is 1000 mm or more Obstacles at front and rear only Fig 3 14 When using an optional air outlet guide the clearance is 1000 mm or more Single parallel unit arrange...

Страница 6: ...ervicing the air conditioner use only the speciﬁed refrigerant R410A to charge the refrigerant lines Do not mix it with any other refrigerant and do not allow air to remain in the lines If air is mixed with the refrigerant then it can be the cause of abnormal high pres sure in the refrigerant line and may result in an explosion and other hazards The use of any refrigerant other than that speciﬁed ...

Страница 7: ... of using 1 branch box Flare connection employed No brazing N 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 ...

Страница 8: ...ry If it is used a gas leakage or even a pipe extraction may occur 2 For details about connecting the pipes for the P100 indoor unit refer to the installation manual of the Y shape connection pipe PAC AK52YP E When bending the pipes be careful not to break them Bend radii of 100 mm to 150 mm are sufﬁcient Make sure the pipes do not contact the compressor Abnormal noise or vibration may result Pipe...

Страница 9: ... in Cap Wrench hole Completely closed Operation section LO HI A C D B K E F G H I Fig 5 11 5 8 Airtight test and evacuation Airtight test Fig 5 11 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 p...

Страница 10: ... pipe and gas or low pressure pipe with the stop valve closed Remember Never carry out air purge by refrigerant Warning When installing or moving a unit to another place do not mix anything other than speciﬁed refrigerant into the refrigeration cycle If air is mixed the refrigeration cycle may obtain abnormally high pressure resulting in a burst pipe A high precision gravimeter measurable up to 0 ...

Страница 11: ...not be operated by a single remote controller 3 2 Different refrigerant systems cannot be connected together 3 3 A M NET adapter cannot be connected to an outdoor unit 3 1 Group operation by single remote controller 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 2 1 Only 3 branch type 2 2 Only 5...

Страница 12: ...ower supply work can be carried out at just one spot of the outdoor unit It will contribute to simplify the work and save costs Power supply Model Power supply 140 160V N 220 230 240V 50Hz N 220V 60Hz Max Permissive System Impedance 0 22 Ω Note Power supply input Outdoor unit only Connect the lines C D in accordance with the terminal block names to ensure correct polarity Model Wire diameter Break...

Страница 13: ...ermediate connections can lead to communication errors if water enters the cables and causes insufﬁcient insulation to ground or a poor electrical contact at the inter mediate connection point If an intermediate connection is necessary be sure to take measures to prevent water from entering the cables 1 Power supply cords of appliances shall not be lighter than design 60245 IEC or 227 IEC 2 In cas...

Страница 14: ...t run may not start 8 Test run 8 1 Before test run After completing installation and the wiring and piping of the indoor and outdoor units check for refrigerant leakage looseness in the power supply or control wiring wrong polarity and no disconnection of one phase in the supply Use a 500 volt M ohm tester to check that the resistance between the power supply terminals and ground is at least 1 MΩ ...

Страница 15: ...ration mode locking func tion by external signal CN3S Remote control panel Relay circuit External input adapter PAC SC36NA Outdoor unit control board Relay power supply Procure locally Max 10m ON OFF SW1 Heating Cooling SW2 Validity of SW1 Invalidity of SW1 Any indoor unit that is operating in a mode different from the one speciﬁed by the external signal will enter the standby mode The setting bec...

Страница 16: ...ase be sure to put the contact address telephone number on this manual before handing it to the customer HEAD OFFICE TOKYO BLDG 2 7 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN Printed in Japan BG79U438L01 ...

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