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Order No: PHAAM1111084C1
Indoor Unit Outdoor Unit
CS-S9NKUW-1 CU-S9NKU-1
CS-S12NKUW-1 CU-S12NKU-1
CS-S18NKU-1 CU-S18NKU-1
CS-S22NKU-1 CU-S22NKU-1
Please file and use this manual together with the service manual for Model No. CU-2S18NBU, Order No. PHAAM1111121C1.
WARNING
This service information is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals of
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TABLE OF CONTENTS 12.5 Compressor Overheating Prevention Control 1. Safety Precautions .............................................3 (For S18, S22NK only) .............................. 53 12.6 Low Pressure Protection Control (Gas 2. Specification .......................................................5 Leakage Detection) ................................... 53 3. Location of Controls and Components............9 12.7 Low Frequency Protection Control 1......... 53 12.8 Low Frequency Prot
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1. Safety Precautions • Read the following “SAFETY PRECAUTIONS” carefully before perform any servicing. • Electrical work must be installed or serviced by a licensed electrician. Be sure to use the correct rating of the power plug and main circuit for the model installed. • The caution items stated here must be followed because these important contents are related to safety. The meaning of each indication used is as below. Incorrect installation or servicing due to ignoring of the instructi
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WARNING During installation, install the refrigerant piping properly before run the compressor. (Operation of compressor without fixing refrigeration 19. piping and valves at opened condition will cause suck-in of air, abnormal high pressure in refrigeration cycle and result in explosion, injury etc.). During pump down operation, stop the compressor before remove the refrigeration piping. (Removal of refrigeration piping while 20. compressor is operating and valves are opened condition wi
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2. Specification Indoor CS-S9NKUW-1 CS-S12NKUW-1 Model Outdoor CU-S9NKU-1 CU-S12NKU-1 Performance Test Condition ARI ARI Phase, Hz Single, 60 Single, 60 Power Supply V 208 230 208 230 Min. Mid. Max. Min. Mid. Max. Min. Mid. Max. Min. Mid. Max. kW 1.20 2.49 3.00 1.20 2.49 3.00 1.20 3.48 3.85 1.20 3.48 3.85 Capacity BTU/h 4100 8500 10200 4100 8500 10200 4100 11900 13100 4100 11900 13100 Running Current A - 3.7 - - 3.3 - - 5.1 - - 4.6 - Input Power W 250 700 900 250 700 900 250 1.00k 1
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Control Device Capillary Tube Capillary Tube Refrigeration 3 Refrigerant Oil cm RB68A or Freol Alpha68M (320) RB68A or Freol Alpha68M (320) Cycle Refrigerant Type g (oz) R410A, 965 (34.1) R410A, 980 (34.6) Height(I/D / O/D) mm (inch) 290 (11-7/16) / 540 (21-9/32) 290 (11-7/16) / 540 (21-9/32) Dimension Width (I/D / O/D) mm (inch) 870 (34-9/32) / 780 (30-23/32) 870 (34-9/32) / 780 (30-23/32) Depth (I/D / O/D) mm (inch) 204 (8-1/16) / 289 (11-13/32) 204 (8-1/16) / 289 (11-13/32) Weight N
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Indoor CS-S18NKU-1 CS-S22NKU-1 Model Outdoor CU-S18NKU-1 CU-S22NKU-1 Performance Test Condition ARI ARI Phase, Hz Single, 60 Single, 60 Power Supply V 208 230 208 230 Min. Mid. Max. Min. Mid. Max. Min. Mid. Max. Min. Mid. Max. kW 1.30 5.01 5.80 1.30 5.01 5.80 1.30 6.18 6.85 1.30 6.18 6.85 Capacity BTU/h 4400 17100 19800 4400 17100 19800 4400 21000 23400 4400 21000 23400 Running Current A - 8.3 - - 7.5 - - 11.2 - - 10.0 - Input Power W 250 1.65k 1.95k 250 1.65k 1.95k 250 2.25k 2.55k 2
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Control Device Expansion Valve Expansion Valve Refrigeration 3 Refrigerant Oil cm RB68A or Freol Alpha68M (400) RB68A or Freol Alpha68M (400) Cycle Refrigerant Type g (oz) R410A, 1.18k (41.7) R410A, 1.37k (48.4) Height(I/D / O/D) mm (inch) 290 (11-7/16) / 795 (31-5/16) 290 (11-7/16) / 795 (31-5/16) Dimension Width (I/D / O/D) mm (inch) 1070 (42-5/32) / 875 (34-15/32) 1070 (42-5/32) / 875 (34-15/32) Depth (I/D / O/D) mm (inch) 235 (9-9/32) / 320 (12-5/8) 235 (9-9/32) / 320 (12-5/8) Wei
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3. Location of Controls and Components 3.1 Indoor Unit 3.2 Outdoor Unit 3.3 Remote Control 9
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4. Dimensions 4.1 Indoor Unit 4.1.1 CS-S9NKUW-1 CS-S12NKUW-1 10
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4.1.2 CS-S18NKU-1 CS-S22NKU-1 11
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4.2 Outdoor Unit 4.2.1 CU-S9NKU-1 CU-S12NKU-1 4.2.2 CU-S18NKU-1 CU-S22NKU-1 12
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5. Refrigeration Cycle Diagram 5.1 CS-S9NKUW-1 CU-S9NKU-1 CS-S12NKUW-1 CU-S12NKU-1 13
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5.2 CS-S18NKU-1 CU-S18NKU-1 CS-S22NKU-1 CU-S22NKU-1 14
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6. Block Diagram 6.1 CS-S9NKUW-1 CU-S9NKU-1 CS-S12NKUW-1 CU-S12NKU-1 15
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6.2 CS-S18NKU-1 CU-S18NKU-1 CS-S22NKU-1 CU-S22NKU-1 16
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7. Wiring Connection Diagram 7.1 Indoor Unit 7.1.1 CS-S9NKUW-1 CS-S12NKUW-1 17
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7.1.2 CS-S18NKU-1 CS-S22NKU-1 18
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7.2 Outdoor Unit 7.2.1 CU-S9NKU-1 CU-S12NKU-1 19
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7.2.2 CU-S18NKU-1 20
