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TECHNICAL & SERVICE MANUAL
INDOOR UNIT : CS-MKE7NKU
CS-MKE9NKU
CS-MKE12NKU
CS-MKE18NKU
CS-MKE24NKU
DC INVERTER MULTI-SYSTEM AIR CONDITIONER
Capacity Indoor Model No. Product Code No.
7,500BTU / h CS-MKE7NKU 1 852 360 99
9,000BTU / h CS-MKE9NKU 1 852 361 00
11,900BTU / h CS-MKE12NKU 1 852 361 01
17,500BTU / h CS-MKE18NKU 1 852 361 02
24,200BTU / h CS-MKE24NKU 1 852 361 03
Wall Mounted Type Indoor Unit
< Applicable Multi-Outdoor Units >
CU-3KE19NBU (3-room multi unit)
CU-4KE24NBU (4-room multi uni
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SAFETY PRECAUTIONS • Before doing repair work, please read the " SAFETY PRECAUTIONS" carefully and fully understand them. • The precautionary items here are divided into " Warning" and " Caution" items. Items in particular which may cause death or serious injury to the service personnel if the work is not performed correctly, are included in the " Warning" table. However, even precautionary items identified as " Caution" also have the potential for serious consequences if
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Warning If refrigerant gas blows off during the work, do not touch the refrigerant gas as it may cause frostbite. Prohibit If refrigerant gas leaks during the work, ventilate the room. If refrigerant gas catches fire, harmful gas may be generated. Do not mix any gas other than the specified refrigerant gas in the refrigerating cycle. If air or other contaminants mix with the gas, pressure will become extremely high in the refrigerating cycle, which may cause a unit breakdown." Prohibit When th
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Table of Contents Page ............................................................................................................. SAFETY PRECAUTIONS 2 .................................................................................................................... TABLE OF CONTENTS 4 ................................................................................... APPLICABLE MULTI-OUTDOOR UNITS 5 ....................................................................................
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APPLICABLE MULTI-OUTDOOR UNITS Multi-Outdoor Unit 3-Room 4-Room 4-Room CU-3KE19NBU CU-4KE24NBU CU-4KE31NBU Indoor Unit CS-MKE7NKU YES YES YES CS-MKE9NKU YES YES YES CS-MKE12NKU YES YES YES CS-MKE18NKU YES YES YES CS-MKE24NKU NO YES YES 5
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1. OPERATING RANGE Temperature Indoor Air Intake Temp. Outdoor Air Intake Temp. Maximum 95 °F DB / 71 °F WB 115° F DB Cooling Minimum 67 °F DB / 57 °F WB 14° F DB Maximum 80 °F DB / 67 °F WB 75° F DB / 65 °F WB Heating Minimum – DB / – WB – DB / 0 °F WB 6
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2. SPECIFICATIONS 2-1. Unit Specifications Indoor Unit CS-MKE7NKU < 230V > Type Wall Mounted Type Indoor Unit Voltage Rating 230V Single-Phase 60Hz Performance Cooling Heating Capacity BTU/h 7,500 8,500 kW 2.20 2.50 3 3 Air Circulation (Hi/Me/Lo) ft /min (m /h) 241(410) / 224(381) / 212(360) 271(460) / 241(410) / 218(370) Moisture Removal (High) Pints/h 2.77 - Electrical Rating Cooling Heating Available Voltage Range V 187 to 253 Running Amperes A 0.11 0.11 Power Input W 25 25 Features Contr
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Indoor Unit CS-MKE7NKU < 208V > Type Wall Mounted Type Indoor Unit Voltage Rating 208V Single-Phase 60Hz Performance Cooling Heating Capacity BTU/h 7,500 8,500 kW 2.20 2.50 3 3 Air Circulation (Hi/Me/Lo) ft /min (m /h) 241(410) / 224(381) / 212(360) 271(460) / 241(410) / 218(370) Moisture Removal (High) Pints/h 2.77 - Electrical Rating Cooling Heating Available Voltage Range V 187 to 253 Running Amperes A 0.12 0.12 Power Input W 25 25 Features Control / Temperature Control Microprocessor / I.C
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Indoor Unit CS-MKE9NKU < 230V > Type Wall Mounted Type Indoor Unit Voltage Rating 230V Single-Phase 60Hz Performance Cooling Heating Capacity BTU/h 9,000 12,200 kW 2.65 3.60 3 3 Air Circulation (Hi/Me/Lo) ft /min (m /h) 259(440) / 241(410) / 212(360) 282(479) / 271(460) / 218(370) Moisture Removal (High) Pints/h 3.4- Electrical Rating Cooling Heating Available Voltage Range V 187 to 253 Running Amperes A 0.15 0.15 Power Input W 35 35 Features Control / Temperature Control Microprocessor / I.C.
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Indoor Unit CS-MKE9NKU < 208V > Type Wall Mounted Type Indoor Unit Voltage Rating 208V Single-Phase 60Hz Performance Cooling Heating Capacity BTU/h 9,000 12,200 kW 2.65 3.60 3 3 Air Circulation (Hi/Me/Lo) ft /min (m /h) 259(440) / 241(410) / 212(360) 282(479) / 271(460) / 218(370) Moisture Removal (High) Pints/h 3.4- Electrical Rating Cooling Heating Available Voltage Range V 187 to 253 Running Amperes A 0.17 0.17 Power Input W 35 35 Features Control / Temperature Control Microprocessor / I.C.
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Indoor Unit CS-MKE12NKU < 230V > Type Wall Mounted Type Indoor Unit Voltage Rating 230V Single-Phase 60Hz Performance Cooling Heating Capacity BTU/h 11,900 14,300 kW 3.50 4.20 3 3 Air Circulation (Hi/Me/Lo) ft /min (m /h) 282(479) / 259(440) / 218(370) 294(500) / 271(460) / 218(370) Moisture Removal (High) Pints/h 4.26 - Electrical Rating Cooling Heating Available Voltage Range V 187 to 253 Running Amperes A 0.15 0.15 Power Input W 35 35 Features Control / Temperature Control Microprocessor /
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Indoor Unit CS-MKE12NKU < 208V > Type Wall Mounted Type Indoor Unit Voltage Rating 208V Single-Phase 60Hz Performance Cooling Heating Capacity BTU/h 11,900 14,300 kW 3.50 4.20 3 3 Air Circulation (Hi/Me/Lo) ft /min (m /h) 282(479) / 259(440) / 218(370) 294(500) / 271(460) / 218(370) Moisture Removal (High) Pints/h 4.26 - Electrical Rating Cooling Heating Available Voltage Range V 187 to 253 Running Amperes A 0.17 0.17 Power Input W 35 35 Features Control / Temperature Control Microprocessor /
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Indoor Unit CS-MKE18NKU < 230V > Type Wall Mounted Type Indoor Unit Voltage Rating 230V Single-Phase 60Hz Performance Cooling Heating Capacity BTU/h 17,500 20,400 kW 5.15 6.00 3 3 Air Circulation (Hi/Me/Lo) ft /min (m /h) 500(850) / 447(760) / 377(641) 500(850) / 435(739) / 377(641) Moisture Removal (High) Pints/h 4.89 - Electrical Rating Cooling Heating Available Voltage Range V 187 to 253 Running Amperes A 0.15 0.15 Power Input W 35 35 Features Control / Temperature Control Microprocessor /
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Indoor Unit CS-MKE18NKU < 208V > Type Wall Mounted Type Indoor Unit Voltage Rating 208V Single-Phase 60Hz Performance Cooling Heating Capacity BTU/h 17,500 20,400 kW 5.15 6.00 3 3 Air Circulation (Hi/Me/Lo) ft /min (m /h) 500(850) / 447(760) / 377(641) 500(850) / 435(739) / 377(641) Moisture Removal (High) Pints/h 4.89 - Electrical Rating Cooling Heating Available Voltage Range V 187 to 253 Running Amperes A 0.17 0.17 Power Input W 35 35 Features Control / Temperature Control Microprocessor /
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Indoor Unit CS-MKE24NKU < 230V > Type Wall Mounted Type Indoor Unit Voltage Rating 230V Single-Phase 60Hz Performance Cooling Heating Capacity BTU/h 24,200 29,000 kW 7.10 8.50 3 3 Air Circulation (Hi/Me/Lo) ft /min (m /h) 541(919) / 500(850) / 435(739) 541(919) / 488(829) / 435(739) Moisture Removal (High) Pints/h 4.89 - Electrical Rating Cooling Heating Available Voltage Range V 187 to 253 Running Amperes A 0.20 0.20 Power Input W 45 45 Features Control / Temperature Control Microprocessor /
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Indoor Unit CS-MKE24NKU < 208V > Type Wall Mounted Type Indoor Unit Voltage Rating 208V Single-Phase 60Hz Performance Cooling Heating Capacity BTU/h 24,200 29,000 kW 7.10 8.50 3 3 Air Circulation (Hi/Me/Lo) ft /min (m /h) 541(919) / 500(850) / 435(739) 541(919) / 488(829) / 435(739) Moisture Removal (High) Pints/h 4.89 - Electrical Rating Cooling Heating Available Voltage Range V 187 to 253 Running Amperes A 0.22 0.22 Power Input W 45 45 Features Control / Temperature Control Microprocessor /
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2-2. Major Component Specifications 2-2-1. Indoor Unit Indoor Unit CS-MKE7NKU Control PCB Part No. CB-CS-MKE7NKU Controls Microprocessor Control Circuit Fuse 250V 3A Fan Type Cross-Flow Q'ty ... Dia. and Length inch (mm) 1 ... D3-5/8 / L24-31/32 (D92/L634) Fan Motor Type DC Motor Model ... Q'ty SIC-41CVJ-D847-4 ... 1 No. of Poles 8 Rough Measure RPM (Cool / Heat) 1,050 / 1,100 Nominal Output W 47 Coil Resistance Ohm - (Ambient Temp. 68 °F (20 °C)) Safety Device Type Internal Controller Over-
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Indoor Unit CS-MKE9NKU Control PCB Part No. CB-CS-MKE9NKU Controls Microprocessor Control Circuit Fuse 250V 3A Fan Type Cross-Flow Q'ty ... Dia. and Length inch (mm) 1 ... D3-5/8 / L24-31/32 (D92/L634) Fan Motor Type DC Motor Model ... Q'ty SIC-41CVJ-D847-4 ... 1 No. of Poles 8 Rough Measure RPM (Cool / Heat) 1,100 / 1,150 Nominal Output W 47 Coil Resistance Ohm - (Ambient Temp. 68 °F (20 °C)) Safety Device Type Internal Controller Over-Current Protection Yes Over-Heat Protection Yes Run Cap
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Indoor Unit CS-MKE12NKU Control PCB Part No. CB-CS-MKE12NKU Controls Microprocessor Control Circuit Fuse 250V 3A Fan Type Cross-Flow Q'ty ... Dia. and Length inch (mm) 1 ... D3-5/8 / L24-31/32 (D92/L634) Fan Motor Type DC Motor Model ... Q'ty SIC-41CVJ-D847-4 ... 1 No. of Poles 8 Rough Measure RPM (Cool / Heat) 1,200 / 1,200 Nominal Output W 47 Coil Resistance Ohm - (Ambient Temp. 68 °F (20 °C)) Safety Device Type Internal Controller Over-Current Protection Yes Over-Heat Protection Yes Run C
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Indoor Unit CS-MKE18NKU Control PCB Part No. CB-CS-MKE18NKU Controls Microprocessor Control Circuit Fuse 250V 3A Fan Type Cross-Flow Q'ty ... Dia. and Length inch (mm) 1 ... D3-5/8 / L33-9/32 (D92/L845) Fan Motor Type DC Motor Model ... Q'ty SIC-41CVJ-D847-3 ... 1 No. of Poles 8 Rough Measure RPM (Cool / Heat) 1,200 / 1,200 Nominal Output W 30 Coil Resistance Ohm - (Ambient Temp. 68 °F (20 °C)) Safety Device Type Internal Controller Over-Current Protection Yes Over-Heat Protection Yes Run Ca
