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TECHNICAL & SERVICE MANUAL
INDOOR UNIT : XMHS0972 & PNR-XS1872
FILE NO.
XMHS1272 & PNR-XS1872
XHS1872 & 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 XMHS0972 (PNR-XS1872) 1 852 353 74 (1 852 352 11)
11,900BTU / h XMHS1272 (PNR-XS1872) 1 852 353 73 (1 852 352 11)
17,500BTU / h XHS1872 (PNR-XS1872) 1 852 352 07 (1 852 352 11)
Semi-Concealed Type Indoor Unit
Body
< Applicable Mu
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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 CMH1972 CMH2472 CMH3172 Indoor Unit XMHS0972 & PNR-XS1872 YES YES YES XMHS1272 & PNR-XS1872 YES YES YES XHS1872 & 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. Maximum 80 °F D.B. / 67 °F W.B. 75 °F D.B. / 65 °F W.B. Heating _ _ Minimum D.B. / W.B. 0 °F D.B. 7
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2. SPECIFICATIONS 2-1. Unit Specifications 2-1-1. Indoor Unit XMHS0972 & PNR-XS1872 <230V> Type Semi-Concealed Type Indoor Unit Voltage Rating 230V Single-Phase 60Hz Cooling Heating Total Capacity BTU/h 9,000 12,300 kW 2.65 3.6 3 3 Air Circulation (High) ft /min (m /h) 221 (375) 247 (420) Moisture Removal (High) Pints/h 3.4 - Available Voltage Range V 187 to 253 Running Amperes A 0.1 0.12 Power Input W 16 18 -- Controls / Temperature Control Microprocessor / I.C. Thermister Control Unit Wirel
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Indoor Unit XMHS0972 & PNR-XS1872 <208V> Type Semi-Concealed Type Indoor Unit Voltage Rating 208V Single-Phase 60Hz Cooling Heating Total Capacity BTU/h 9,000 12,300 kW 2.65 3.6 3 3 Air Circulation (High) ft /min (m /h) 221 (375) 247 (420) Moisture Removal (High) Pints/h 3.4 - Available Voltage Range V 187 to 253 Running Amperes A 0.11 0.13 Power Input W 15 17 -- Controls / Temperature Control Microprocessor / I.C. Thermister Control Unit Wireless Remote Control Unit Timer 24-Hour ON or OFF T
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Indoor Unit XMHS1272 & PNR-XS1872 <230V> Type Semi-Concealed Type Indoor Unit Voltage Rating 230V Single-Phase 60Hz Cooling Heating Total Capacity BTU/h 11,900 13,600 kW 3.5 4.0 3 3 Air Circulation (High) ft /min (m /h) 235 (400) 268 (455) Moisture Removal (High) Pints/h 4.26 - Available Voltage Range V 187 to 253 Running Amperes A 0.11 0.13 Power Input W 17 19 -- Controls / Temperature Control Microprocessor / I.C. Thermister Control Unit Wireless Remote Control Unit Timer 24-Hour ON or OFF
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Indoor Unit XMHS1272 & PNR-XS1872 <208V> Type Semi-Concealed Type Indoor Unit Voltage Rating 208V Single-Phase 60Hz Cooling Heating Total Capacity BTU/h 11,900 13,600 kW 3.5 4.0 3 3 Air Circulation (High) ft /min (m /h) 235 (400) 268 (455) Moisture Removal (High) Pints/h 4.26 - Available Voltage Range V 187 to 253 Running Amperes A 0.12 0.14 Power Input W 16 18 -- Controls / Temperature Control Microprocessor / I.C. Thermister Control Unit Wireless Remote Control Unit Timer 24-Hour ON or OFF
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Indoor Unit XHS1872 & PNR-XS1872 <230V> Type Semi-Concealed Type Indoor Unit Voltage Rating 230V Single-Phase 60Hz Cooling Heating Total Capacity BTU/h 17,500 20,400 kW 5.15 6.0 3 3 Air Circulation (High) ft /min (m /h) 341 (580) 383 (650) Moisture Removal (High) Pints/h 4.89 - Available Voltage Range V 187 to 253 Running Amperes A 0.15 0.19 Power Input W 22 27 -- Controls / Temperature Control Microprocessor / I.C. Thermister Control Unit Wireless Remote Control Unit Timer 24-Hour ON or OFF
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Indoor Unit XHS1872 & PNR-XS1872 <208V> Type Semi-Concealed Type Indoor Unit Voltage Rating 208V Single-Phase 60Hz Cooling Heating Total Capacity BTU/h 17,500 20,400 kW 5.15 6.0 3 3 Air Circulation (High) ft /min (m /h) 341 (580) 383 (650) Moisture Removal (High) Pints/h 4.89 - Available Voltage Range V 187 to 253 Running Amperes A 0.16 0.2 Power Input W 22 27 -- Controls / Temperature Control Microprocessor / I.C. Thermister Control Unit Wireless Remote Control Unit Timer 24-Hour ON or OFF T
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2-2. Major Component Specifications 2-2-1. Indoor Unit Indoor Unit (Body) XMHS0972 Control PCB Part No. CB-XMHS0972 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 / Heat) 440 / 490 Rating Voltage / Nominal Output DC280V / 23W Coil Resistance Ohm - (Ambient Temp. 68 °F (2
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Indoor Unit (Body) XMHS1272 Control PCB Part No. CB-XMHS1272 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 / Heat) 470 / 520 Rating Voltage / Nominal Output DC280V / 23W Coil Resistance Ohm - (Ambient Temp. 68 °F (20 °C)) Safety Device Type Thermal Fuse Over- Current Prot
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Indoor Unit (Body) XHS1872 Control PCB Part No. CB-XHS1872 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 / Heat) 650 / 720 Rating Voltage / Nominal Output DC340V / 20W Coil Resistance Ohm - (Ambient Temp. 68 °F (20 °C)) Safety Device Type Internal Controller Over- Curren
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2-3. Other Component Specifications Indoor Unit XMHS0972 & PNR-XS1872 XMHS1272 & PNR-XS1872 XHS1872 & 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 o
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3. DIMENSIONAL DATA Indoor Unit XMHS0972 & PNR-XS1872 XMHS1272 & PNR-XS1872 XHS1872 & 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 Fr
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4. REFRIGERANT FLOW DIAGRAM 4-1. Refrigerant Flow Diagram Indoor Unit XMHS0972 & PNR-XS1872 XMHS1272 & PNR-XS1872 Indoor unit O.D. 3/8" (9.52 mm) O.D. 1/4" (6.35 mm) Cooling cycle Heating cycle Indoor Unit XHS1872 & PNR-XS1872 Indoor unit O.D. 1/2" (12.7 mm) O.D. 1/4" (6.35 mm) Cooling cycle Heating cycle 19 Strainer Strainer Heat exchanger Heat exchanger
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5. ELECTRICAL DATA 5-1. Electric Wiring Diagrams Indoor Unit XMHS0972 & PNR-XS1872 XMHS1272 & PNR-XS1872 XHS1872 & 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
