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Contents
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PRECAUTIONS FOR DEVICES THAT USE R407C REFRIGERANT ....................................... 1
[1] Storage of Piping Material ................................................................................................... 2
[2] Piping Machining ................................................................................................................. 3
[3] Necessary Apparatus and Materials and Notes on Their Handling ..................................... 4
[4] Brazing ................................................................................................................................. 5
[5] Airtightness Test .................................................................................................................. 6
[6] Vacuuming ........................................................................................................................... 6
[7] Charging of Refrigerant ....................................................................................................... 7
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SPECIFICATIONS ...................................................................................................................... 8
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EXTERNAL DIMENSIONS ....................................................................................................... 10
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ELECTRICAL WIRING DIAGRAM ........................................................................................... 11
[1] Outdoor Unit ...................................................................................................................... 11
[2] Skelton of Indoor/Outdoor Connection .............................................................................. 12
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Technical Data of PUH-8/10YD to Meet LVD ......................................................................... 13
[1] Standard Operation Data ................................................................................................... 13
[2] Cooling Capacity Curves ................................................................................................... 14
[3] Heating Capacity Curves ................................................................................................... 14
[4] Capacity Reduction Ratio due to Changes in Piping Length ............................................. 15
[5] Center of Gravity (Outdoor unit) ........................................................................................ 16
[6] NC Curve (Outdoor unit) ................................................................................................... 17
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SERVICE DATA ........................................................................................................................ 18
[1] Appearance of Equipment ................................................................................................. 18
[2] Refrigerant Circuit .............................................................................................................. 20
[3] Limitation of Refrigerant Piping Length .............................................................................. 20
[4] Refrigerant Piping .............................................................................................................. 21
[5] Refrigerant Charge ............................................................................................................ 21
[6] Operation Rage ................................................................................................................. 21
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CONTROL ................................................................................................................................ 22
[1] Composition of Control ...................................................................................................... 22
[2] Control specifications ......................................................................................................... 23
[3] Function of switches and connectors (outdoor unit) .......................................................... 27
[4] Simple parts check method ............................................................................................... 35
[5] Reference Data .................................................................................................................. 36
[6] Troubleshooting of each part ............................................................................................. 37
[7] Emergency operation ......................................................................................................... 40
[8] Self-diagnosis and troubleshooting .................................................................................... 42
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Test run .................................................................................................................................... 51
