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TECHNICAL & SERVICE MANUAL
INDOOR UNIT : XMS0972 & PNR-XS1872
FILE NO.
XMS1272 & PNR-XS1872
XS1872 & PNR-XS1872
Destination: North America
DC INVERTER MULTI-SYSTEM AIR CONDITIONER
Indoor Model No. Product Code No.
Capacity
Body (Panel) Body (Panel)
9,000BTU / h XMS0972 (PNR-XS1872) 1 852 353 72 (1 852 352 11)
11,900BTU / h XMS1272 (PNR-XS1872) 1 852 353 71 (1 852 352 11)
17,500BTU / h XS1872 (PNR-XS1872) 1 852 352 09 (1 852 352 11)
Semi-Concealed Type Indoor Unit
Body
< Applicable Multi-Ou
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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 consequence
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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 .............................................................................................................. 2 SAFETY PRECAUTIONS ................................................................................................................... 4 TABLE OF CONTENTS .................................................................................... 6 APPLICABLE MULTI-OUTDOOR UNITS ...................................................................................
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Page ......................................................................................... A-4 APPENDIX D INSTRUCTION MANUAL (STK-RCS-7TWSUA) ............................................................................ A-5 APPENDIX E INSTALLATION INSTRUCTIONS (STK-RCS-7TWSUA) 5
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APPLICABLE MULTI-OUTDOOR UNITS Multi-Outdoor Unit 3-Room 4-Room 4-Room CM1972 CM2472 CM3172 Indoor Unit XMS0972 & PNR-XS1872 YES YES YES XMS1272 & PNR-XS1872 YES YES YES XS1872 & PNR-XS1872 YES YES YES 6
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1. OPERATING RANGE Temperature Indoor Air Intake Temp. Outdoor Air Intake Temp. Maximum 95 °F D.B. / 71 °F W.B. 115 °F D.B. Cooling Minimum 67 °F D.B. / 57 °F W.B. 67 °F D.B. 7
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2. SPECIFICATIONS 2-1. Unit Specifications 2-1-1. Indoor Unit XMS0972 & PNR-XS1872 <230V> Type Semi-Concealed Type Indoor Unit Voltage Rating 230V Single-Phase 60Hz Cooling Total Capacity BTU/h 9,000 kW 2.65 3 3 Air Circulation (High) ft /min (m /h) 221 (375) Moisture Removal (High) Pints/h 3.4 Available Voltage Range V 187 to 253 Running Amperes A 0.1 Power Input W 16 -- Controls / Temperature Control Microprocessor / I.C. Thermister Control Unit Wireless Remote Control Unit Timer 24-Hour
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Indoor Unit XMS0972 & PNR-XS1872 <208V> Type Semi-Concealed Type Indoor Unit Voltage Rating 208V Single-Phase 60Hz Cooling Total Capacity BTU/h 9,000 kW 2.65 3 3 Air Circulation (High) ft /min (m /h) 221 (375) Moisture Removal (High) Pints/h 3.4 Available Voltage Range V 187 to 253 Running Amperes A 0.11 Power Input W 15 -- Controls / Temperature Control Microprocessor / I.C. Thermister Control Unit Wireless Remote Control Unit Timer 24-Hour ON or OFF Timer, 1-Hour OFF Timer Fan Speeds Indoor
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Indoor Unit XMS1272 & PNR-XS1872 <230V> Type Semi-Concealed Type Indoor Unit Voltage Rating 230V Single-Phase 60Hz Cooling Total Capacity BTU/h 11,900 kW 3.5 3 3 Air Circulation (High) ft /min (m /h) 235 (400) Moisture Removal (High) Pints/h 4.26 Available Voltage Range V 187 to 253 Running Amperes A 0.11 Power Input W 17 -- Controls / Temperature Control Microprocessor / I.C. Thermister Control Unit Wireless Remote Control Unit Timer 24-Hour ON or OFF Timer, 1-Hour OFF Timer Fan Speeds Indoo
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Indoor Unit XMS1272 & PNR-XS1872 <208V> Type Semi-Concealed Type Indoor Unit Voltage Rating 208V Single-Phase 60Hz Cooling Total Capacity BTU/h 11,900 kW 3.5 3 3 Air Circulation (High) ft /min (m /h) 235 (400) Moisture Removal (High) Pints/h 4.26 Available Voltage Range V 187 to 253 Running Amperes A 0.12 Power Input W 16 -- Controls / Temperature Control Microprocessor / I.C. Thermister Control Unit Wireless Remote Control Unit Timer 24-Hour ON or OFF Timer, 1-Hour OFF Timer Fan Speeds Indoo
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Indoor Unit XS1872 & PNR-XS1872 <230V> Type Semi-Concealed Type Indoor Unit Voltage Rating 230V Single-Phase 60Hz Cooling Total Capacity BTU/h 17,500 kW 5.15 3 3 Air Circulation (High) ft /min (m /h) 341 (580) Moisture Removal (High) Pints/h 4.89 Available Voltage Range V 187 to 253 Running Amperes A 0.15 Power Input W 22 -- Controls / Temperature Control Microprocessor / I.C. Thermister Control Unit Wireless Remote Control Unit Timer 24-Hour ON or OFF Timer, 1-Hour OFF Timer Fan Speeds Indoo
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Indoor Unit XS1872 & PNR-XS1872 <208V> Type Semi-Concealed Type Indoor Unit Voltage Rating 208V Single-Phase 60Hz Cooling Total Capacity BTU/h 17,500 kW 5.15 3 3 Air Circulation (High) ft /min (m /h) 341 (580) Moisture Removal (High) Pints/h 4.89 Available Voltage Range V 187 to 253 Running Amperes A 0.16 Power Input W 22 -- Controls / Temperature Control Microprocessor / I.C. Thermister Control Unit Wireless Remote Control Unit Timer 24-Hour ON or OFF Timer, 1-Hour OFF Timer Fan Speeds Indoo
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2-2. Major Component Specifications 2-2-1. Indoor Unit Indoor Unit (Body) XMS0972 Control PCB Part No. CB-XMS0972 Controls Microprocessor Control Circuit Fuse 250V 3A Remote Control Unit RCS-7MHVPSW4U Fan Type Turbo Q'ty ... Dia. and Length inch (mm) 1 ... D12-5/8 / L5-3/4 (D322/L147) Fan Motor Type DC Motor Model ... Q'ty SIC-69FV-D866-1 ... 1 No. of Poles 8 Rough Measure RPM (Cool) 440 Rating Voltage / Nominal Output DC280V / 23W Coil Resistance Ohm - (Ambient Temp. 68 °F (20 °C)) Safety D
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Indoor Unit (Body) XMS1272 Control PCB Part No. CB-XMS1272 Controls Microprocessor Control Circuit Fuse 250V 3A Remote Control Unit RCS-7MHVPSW4U Fan Type Turbo Q'ty ... Dia. and Length inch (mm) 1 ... D12-5/8 / L5-3/4 (D322/L147) Fan Motor Type DC Motor Model ... Q'ty SIC-69FV-D866-1 ... 1 No. of Poles 8 Rough Measure RPM (Cool) 470 Rating Voltage / Nominal Output DC280V / 23W Coil Resistance Ohm - (Ambient Temp. 68 °F (20 °C)) Safety Device Type Thermal Fuse Over- Current Protection Yes Over
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Indoor Unit (Body) XS1872 Control PCB Part No. CB-XS1872 Controls Microprocessor Control Circuit Fuse 250V 3A Remote Control Unit RCS-7MHVPSW4U Fan Type Turbo Q'ty ... Dia. and Length inch (mm) 1 ... D12-5/8 / L5-3/4 (D322/L147) Fan Motor Type DC Motor Model ... Q'ty SIC-72FV-D866-1B ... 1 No. of Poles 8 Rough Measure RPM (Cool) 650 Rating Voltage / Nominal Output DC340V / 20W Coil Resistance Ohm - (Ambient Temp. 68 °F (20 °C)) Safety Device Type Internal Controller Over- Current Protection Ye
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2-3. Other Component Specifications Indoor Unit XMS0972 & PNR-XS1872 XMS1272 & PNR-XS1872 XS1872 & PNR-XS1872 • Indoor air temp sensor • Indoor heat exchanger sensor (Model:KTEC-35-S98) (Model:PT2M-51H-S3) 10 200 9 180 8 160 7 140 6 120 5 100 4 80 3 60 2 40 1 20 0 0 50 59 68 77 86 95 104 32 50 68 86 104 122 140 158 176 194 (10) (15) (20) (25) (30) (35) (40) (0) (10) (20) (30) (40) (50) (60) (70) (80) (90) Temperature °F (°C) Temperature °F (°C) 17 Resistance (k ohm) Resistance (k ohm)
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3. DIMENSIONAL DATA Indoor Unit XMS0972 & PNR-XS1872 XMS1272 & PNR-XS1872 XS1872 & PNR-XS1872 Unit : inch (mm) 18 A A 23-5/8 (600) Ceiling opening dimensions 21-1/32 (534) Suspension bolt pitch Air intake 1 Center of Discharge outlet 2 7 panel Refrigerant tubing (liquid tube) dia. 1/4" (flared) 3 Refrigerant tubing (gas tube) dia. 1/2" (flared) 8 4 4-29/32 5 Drain tube connection port VP20 (outer dia. 1") A View Power supply port 6 7 Suspension bolt hole (4 - 1/2" x 1-1/8" hole) 8 Fresh
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4. REFRIGERANT FLOW DIAGRAM 4-1. Refrigerant Flow Diagram Indoor Unit XMS0972 & PNR-XS1872 XMS1272 & PNR-XS1872 Indoor unit O.D. 3/8" (9.52 mm) O.D. 1/4" (6.35 mm) Cooling cycle Indoor Unit XS1872 & PNR-XS1872 Indoor unit O.D. 1/2" (12.7 mm) O.D. 1/4" (6.35 mm) Cooling cycle 19 Strainer Strainer Heat exchanger Heat exchanger
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5. ELECTRICAL DATA 5-1. Electric Wiring Diagrams Indoor Unit XMS0972 & PNR-XS1872 XMS1272 & PNR-XS1872 XS1872 & PNR-XS1872 20 TO OUTDOOR UNIT 1 2 3 TERMINAL BASE FLAP (W) FLAP (R) IND LAMP ASSY 1 2 3 4 5 1 2 3 4 5 THERMISTOR 1 2 3 4 5 6 7 8 9 10 DRAIN PUMP 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 6 7 8 9 10 GND FAN MOTOR DP BRN FM RED ORG 1 2 3 4 5 6 YEL 1 2 3 4 5 6 PNK BLU VLT 1 2 3 4 5 6 1 3 1 2 3 4 5 6 7 1 2 3 4 5 6 7 1 2 3 4 1 2 3 4 5 6 7 1 2 3 4 5 1 3 1 2 1 2 1 2 3 4 5 6 1 3 1 2 3 4 5 6 7 1 2 3
