York YJU3YH019BARRA-X Installation Manual Download Page 2

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Contents

English

Safety Precautions

Accessories

Precautions for Selecting the

Location

Installation drawings of indoor and

outdoor units

Precautions on Installation

Outdoor Unit Installation Guideline

Limitations on the installation

Refrigerant piping work

Pump Down Operation

Wiring work

Test running

Trouble shooting

Summary of Contents for YJU3YH019BARRA-X

Page 1: ...INSTALLATION MANUAL Inverter Multi split Outdoor R410A YJU3 5YH019 034BARRA X ...

Page 2: ...ies Precautions for Selecting the Location Installation drawings of indoor and outdoor units Precautions on Installation Outdoor Unit Installation Guideline Limitations on the installation Refrigerant piping work Pump Down Operation Wiring work Test running Trouble shooting ...

Page 3: ......

Page 4: ...eceive no external stresses Incomplete connections or clamping may cause terminal overheating or fire After connectiong interconnecting and supply wiring be sure to shape the cables so that they do not put undue force on the electrical covers or panels Install covers over the wires Incomplete cover installation may cause terminal overheating electrical shock or fire If any refrigerant has leaked o...

Page 5: ...se and the discharged hot air will not annoy the neighbors 7 Install units power cords and inter unit cables at least 3 meter away from television and radio sets This is to prevent interference to images and sounds Noises may be heard even if they are more than 3 meter away depending on radio wave conditions 8 In coastal areas or other places with salty atmosphere of sulfate gas corrosion may shor...

Page 6: ...25K ...

Page 7: ...e is when there are 2 indoors the prior stop valves are when there are 3 indoors the prior stop valves are when there are 4 indoors the prior stop valves are when there are 5 indoors the prior stop valves are Note For better oil return and more reliable system please execute as the above when connecting indoor unit C C B C B A D D C D C B D C B A E E D E D C E D C B E D C B A 19K 25K 34K 30K ...

Page 8: ...he exhaust side should be 1200mm or less Limitations on the installation 2 Selecting a location for installation of the indoor units The maxinum allowable length of refrigerant piping and the maxmum allowable height difference between the outdoor and indoor units are listed below The shorter the refrigerant piping the better the performance Connect so that the piping is as short as possible Shorte...

Page 9: ... of at least 30mm in height under the outdoor unit s feet 3 In cold areas do not use a drain hose with the outdoor unit Otherwise drain water may freeze impairing heating performance Drain elbow Hose Drain elbow Hose Indoor Unit Outdoor Unit Level difference 15m max Level difference 7 5m max If the outdoor unit is positioned higher than the indoor units Outdoor Unit Indoor Unit Level difference 15...

Page 10: ...icate the presence of moisture or leaking from connecting parts After inspecting all the connection and loosening then retightening thenuts reqeat steps 2 4 Remove covers from liquid stop valve and gas stop valve Turn the liquid stop valve s rod 90 degrees counterclockwise with a hexagonal wrench to open valve Close it after 5 seconds and check for gas leakage Using soapy water check for gas leaka...

Page 11: ... liquid form It is a mixed refrigerant so adding it in gas form may cause the refrigerant composition to change preventing normal operation 1 Before filling check whether the cylinder has a siphon attached or not It should have something like liquid filling siphon attached displayed on it 2 Be sure to use the R410A tools to ensure pressure and to prevent foreign objects entering 1 This system must...

Page 12: ...ing into the system as this would educe the lifetime of the units 3 Never use piping which has been used for previous installations Only use parts which are delivered with the unit 4 Do never install a drier to this R410A unit in order to guarantee its lifetime 5 The drying material may dissolve and damage the system 6 Incom ete flaring may cause refrigerant gas leakage Cut exactly at right angles...

Page 13: ...mers themselves Pump Down Operation liquid stop valve Gas stop valve Valve cap Hexagonal wernch Close In order to protect the environment be sure to pump down when relocating or disposing of the unit 1 Remove the valve caps from liquid stop valve and gas stop valve 2 Carry out forced cooling operation 3 After five to ten minutes close the liquid stop valve with a hexagonal wrench 4 After two to th...

Page 14: ...mproper contact will cause heat generation Do not connect the power line with different dimensions to the same grounding wire end Improper contact will affect protection Do not connect the power line to the connecting end of communication wire Incorrect connection will cause damage to the connected unit 4 Wiring method of indoor unit Wiring work Valve cover 25 40 0 Terminal block Wire cover A Wire...

Page 15: ...ration frost may ocur on the indoor unit or pipes this is normal 7 Operate the unit according to the operation manual Please kindly explain to our customers how to operate through the instruction manual ON 4 3 2 1 CN2 CN3 CN1 CN4 SW1 4 3 2 1 5 Seven segment numeric display 1 When unit is runing this seven segment numeric will display the frequency of compressor For example means compressor running...

Page 16: ...lfunction of liquid pipe temp sensor for indoor unit A Sensor disconnected or broken or at wrong position or short circuit 29 Malfunction of liquid pipe temp sensor for indoor unit B Sensor disconnected or broken or at wrong position or short circuit 30 Malfunction of liquid pipe temp sensor for indoor unit C Sensor disconnected or broken or at wrong position or short circuit 31 Malfunction of liq...

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Page 18: ...www johnsoncontrols com MJUMYHART 130105 2013 Johnson Controls Inc Johnson Controls reserve the right to change product features without prior notice ...

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