TECHNICAL & SERVICE MANUAL
INDOOR UNIT : XMS0972 & PNR-XS1872 XMS1272 & PNR-XS1872 XS1872 & PNR-XS1872
FILE NO.
Destination: North America
DC INVERTER MULTI-SYSTEM AIR CONDITIONER
Capacity |
Indoor Model No. |
Product Code No. |
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Body (Panel) |
Body (Panel) |
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9,000BTU / h |
XMS0972 (PNR-XS1872) |
1 852 353 72 (1 852 352 11) |
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11,900BTU / h |
XMS1272 (PNR-XS1872) |
1 852 353 71 (1 852 352 11) |
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17,500BTU / h |
XS1872 (PNR-XS1872) |
1 852 352 09 (1 852 352 11) |
Semi-Concealed Type Indoor Unit
Body
Panel
XMS0972 (Body) & PNR-XS1872 (Panel)
XMS1272 (Body) & PNR-XS1872 (Panel)
XS1872 (Body) & PNR-XS1872 (Panel)
< Applicable Multi-Outdoor Units >
CM1972 (3-room multi unit) CM2472 (4-room multi unit) CM3172 (4-room multi unit)
NOTE
For details about the combinations, refer to "Unit Combination Table" in the T. Service Manual for the Multi Outdoor Units.
Wireless Remote Controller |
Wired Remote Controller |
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(Option) |
REFERENCE NO. SM700815
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 not performed correctly.
Important safety precautions are described for all items in both categories. Be sure to carefully follow all of them.
•Symbol Indication
:This symbol indicates items to which we need to pay attention. In this triangle, a definite precautionary item is described.
:This symbol indicates the item to be prohibited.
In or close to this circle, a prohibited item is described.
:This symbol indicates the items requiring special attention or instruction. In or close to this circle, a prohibited item is described.
•After doing repair work, perform a test run to confirm that there are no abnormalities. At the same time, explain the precautions in use to the user.
Warning
Before performing an overhaul, disconnect the power plug or power cable from the unit.
Performing the work with the power supplied to the unit, may cause an electric shock.
When repair work or circuit inspection that requires power supply for the air conditioner, is to be performed, |
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do not touch the charging section. |
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Doing so may cause an electric shock. |
Prohibit |
For the step-up capacitor attached to the electric section, perform the repair work after sufficiently discharging it. Insufficient capacitor discharge may cause an electric shock.
Do not perform repair work on the electric sections with wet hands. Doing so may cause an electric shock.
Prohibit
Do not start or stop the air conditioner by means of connecting or disconnecting the power plug. Doing so may cause an electric shock or fire.
Prohibit
When conducting repair work only use components included in the parts list for the corresponding unit and perform the work with the appropriate tools.
Incorrect or poor repair work may cause an electric shock or fire.
Never modify the unit.
Doing so may cause an electric shock or fire.
Prohibit
Perform all electric work according to local applicable regulations related to electrical equipment or interior wiring regulation and make sure to use the exclusive circuit.
Insufficient capacity to the electric circuit or defective arrangement results may cause an electric shock or fire.
Make sure to replace any power cable or lead wire showing any signs of scratch or deterioration.
Failure to do so may cause an electric shock, overheating or fire.
Make sure that there is no dust on or slack in the power plug and insert fully into the socket.
Dust or incomplete connections may cause an electric shock or fire.
Do not damage or process the power cord, as it may cause an electric shock or fire.
Prohibit
For the wiring between the indoor unit and outdoor unit, securely fix the specified cable onto the terminal plate. Poorly fixed wiring may cause a heat or fire.
After connecting the wiring between the indoor unit and outdoor unit, attach the terminal cover securely.
Incomplete attachment of the terminal cover may cause overheating or fire.
2
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. |
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If air or other contaminants mix with the gas, pressure will become extremely high in the refrigerating cycle, |
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which may cause a unit breakdown." |
Prohibit |
When the welded section of the compressor intake or discharge pipe is to be disconnected, perform it in a well-ventilated place after sufficiently recovering the refrigerant gas.
Any residue gas may jet out refrigerant or refrigerating machine oil, which may cause an injury.
When the work is to be performed in a high place (About 2 meters or more), make sure to wear a safety helmet, gloves and safety belt. Insufficient safety gear may cause a serious injury in case of a fall.
When the unit is to be relocated, confirm that the new installation location has sufficient strength for the weight of the unit. Insufficient strength of the installation location and incomplete installation work may cause an injury due to
the unit falling.
When the remote controller batteries are replaced, dispose of the old batteries out of the reach of children. If a child swallows a battery, make sure that the child gets immediate medical attention.
Caution
Do not wash the air conditioner with water, as this may cause an electric shock or fire.
Prohibit
For the repair work in places with high humidity or moisture, make sure to ground the unit. Failure to do so may cause an electric shock.
Confirm that the component attachment position, wiring condition, soldering condition and connector connection are normal.
If not, it may cause overheating or fire.
Confirm that the temperature around the compressor is not too high, and then perform the repair work. Failure to do so may cause a burn.
Perform welding work in a place with good ventilation.
If the work is performed in a poorly ventilated area, it might cause a lack of oxygen.
If the installation plate or attachment frame has deteriorated due to corrosion, etc., replace it.
Failure to do so may cause an injury due to the unit falling.
When the cleaning is to be performed, make sure to turn off the power and pull out the plug.
Touching the fan that is rotating at high speed may result in an injury.
When the indoor unit is to be removed, do not place it on an incline.
Doing so may cause wet furniture because water left inside may trickle down.
Prohibit
Do not hold the sharp end of the unit or the aluminum fins, as it may cause an injury to your hand or finger.
Prohibit
After repairs, make sure to measure the insulation resistance and confirm that the value is 1 Mohm or more. Any insulation error may cause an electric shock.
After repairs, make sure to check the drainage of the indoor unit.
Inappropriate drainage may cause wet furniture and floors due to water leakage.
3
TABLE OF CONTENTS
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SAFETY PRECAUTIONS .............................................................................................................. |
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TABLE OF CONTENTS ................................................................................................................... |
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APPLICABLE MULTI-OUTDOOR UNITS .................................................................................... |
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1. OPERATING RANGE ................................................................................................................... |
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2. SPECIFICATIONS |
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2-1. |
Unit Specifications ............................................................................................................. |
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2-2. |
Major Component Specifications ....................................................................................... |
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2-3. |
Other Component Specifications ....................................................................................... |
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3. DIMENSIONAL DATA .................................................................................................................... |
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4. REFRIGERANT FLOW DIAGRAM |
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4-1. |
Refrigerant Flow Diagram .................................................................................................. |
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5. ELECTRICAL DATA |
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5-1. |
Electric Wiring Diagrams .................................................................................................... |
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6. MAINTENANCE |
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6-1. |
Disassembly Procedure ..................................................................................................... |
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7. FUNCTIONS |
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7-1. |
Operation Functions ........................................................................................................... |
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7-2. |
Protective Functions ........................................................................................................... |
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8. TROUBLESHOOTING |
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8-1. |
Precautions before Performing Inspection or Repair .......................................................... |
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8-2. |
Method of Self-Diagnostics ................................................................................................. |
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8-3. |
Checking the Indoor and Outdoor Units .............................................................................. |
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8-4. |
Trouble Diagnosis of Fan Motor .......................................................................................... |
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8-5. Noise Malfunction and Electromagnetic Interference .......................................................... |
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INSTRUCTION MANUAL |
.........................................................................................A-1 |
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APPENDIX A |
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(XMS0972 & PNR-XS1872, XMS1272 & PNR-XS1872) |
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INSTRUCTION MANUAL |
.........................................................................................A-2 |
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APPENDIX B |
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(XS1872 & PNR-XS1872) |
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INSTALLATION INSTRUCTIONS .............................................................................A-3 |
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APPENDIX C |
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XMS0972 & PNR-XS1872, XMS1272 & PNR-XS1872, |
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(XS1872 & PNR-XS1872 |
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4
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APPENDIX D INSTRUCTION MANUAL .........................................................................................A-4
(STK-RCS-7TWSUA)
APPENDIX E INSTALLATION INSTRUCTIONS ............................................................................A-5
(STK-RCS-7TWSUA)
5
APPLICABLE MULTI-OUTDOOR UNITS
Multi-Outdoor Unit |
3-Room |
4-Room |
4-Room |
Indoor Unit |
CM1972 |
CM2472 |
CM3172 |
XMS0972 & PNR-XS1872 |
YES |
YES |
YES |
XMS1272 & PNR-XS1872 |
YES |
YES |
YES |
XS1872 & PNR-XS1872 |
YES |
YES |
YES |
6
1. OPERATING RANGE
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Temperature |
Indoor Air Intake Temp. |
Outdoor Air Intake Temp. |
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Cooling |
Maximum |
95 °F D.B. / 71 °F W.B. |
115 °F D.B. |
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Minimum |
67 °F D.B. / 57 °F W.B. |
67 °F D.B. |
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7
2. SPECIFICATIONS
2-1. Unit Specifications
2-1-1. Indoor Unit XMS0972 & PNR-XS1872
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<230V> |
Type |
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Semi-Concealed Type Indoor Unit |
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Voltage Rating |
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230V Single-Phase 60Hz |
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Performance |
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Cooling |
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Total Capacity |
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BTU/h |
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9,000 |
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kW |
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2.65 |
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Air Circulation (High) |
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ft3/min (m3/h) |
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221 (375) |
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Moisture Removal (High) |
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Pints/h |
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3.4 |
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Rating |
Available Voltage Range |
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V |
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187 to 253 |
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Running Amperes |
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A |
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0.1 |
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Electrical |
Power Input |
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W |
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16 |
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- |
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Controls / Temperature Control |
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Microprocessor / I.C. Thermister |
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Control Unit |
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Wireless Remote Control Unit |
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Timer |
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24-Hour ON or OFF Timer, 1-Hour OFF Timer |
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Fan Speeds |
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Indoor |
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Auto and 3 steps |
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Airflow Direction (Indoor) |
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Horizontal |
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- |
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Features |
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Vertical |
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Auto |
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Air Filter |
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Washable, Anti-Mold |
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Refrigerant |
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R410A |
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Operation Sound |
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Indoor : Hi/Me/Lo |
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dB-A |
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33 / 32 / 31 |
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Refrigerant Tubing Connections |
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Flare Type |
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Refrigerant |
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Narrow tube |
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inch (mm) |
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1/4 (6.35) |
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Tube Diameter |
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Wide tube |
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inch (mm) |
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3/8 (9.52) |
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Accessories |
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Air Clean Filter |
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Wired Remote Controller (Option) |
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STK-RCS-7TWSUA |
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Dimensions & Weight (Indoor Unit) |
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Indoor Unit |
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Individual Unit |
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Body |
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Panel |
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(XMS0972 & PNR-XS1872) |
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(XMS0972) |
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(PNR-XS1872) |
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Unit Dimensions |
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Height |
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inch (mm) |
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12-5/16 (313) |
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11-5/32 (283) |
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1-9/16 (40) |
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Width |
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inch (mm) |
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24-19/32 (625) |
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22-5/8 (575) |
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24-19/32 (625) |
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Depth |
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inch (mm) |
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24-19/32 (625) |
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22-5/8 (575) |
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24-19/32 (625) |
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Package Dimensions |
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Height |
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inch (mm) |
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- |
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11-13/32 (290) |
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4-1/8 (105) |
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Width |
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inch (mm) |
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- |
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24-13/16 (630) |
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26-3/16 (665) |
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Depth |
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inch (mm) |
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- |
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28-1/8 (714) |
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26-11/16 (678) |
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Weight |
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Net |
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Ib. (kg) |
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41.3 (18.7) |
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35.3 (16) |
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6.0 (2.7) |
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Shipping |
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Ib. (kg) |
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- |
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41.9 (19) |
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7.7 (3.5) |
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Shipping Volume |
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cu.ft (m3) |
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- |
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4.59 (0.13) |
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1.65 (0.04) |
Remarks: Rating conditions are: |
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DATA SUBJECT TO |
CHANGE WITHOUT NOTICE. |
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Cooling: Indoor air temperature |
80°F D.B. / 67°F W.B. |
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Outdoor air temperature |
95°F D.B. / 75°F W.B. |
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8
Indoor Unit |
XMS0972 & PNR-XS1872 |
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<208V> |
Type |
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Semi-Concealed Type Indoor Unit |
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Voltage Rating |
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208V Single-Phase 60Hz |
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Performance |
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Cooling |
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Total Capacity |
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BTU/h |
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9,000 |
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kW |
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2.65 |
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Air Circulation (High) |
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ft3/min (m3/h) |
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221 (375) |
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Moisture Removal (High) |
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Pints/h |
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3.4 |
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Rating |
Available Voltage Range |
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V |
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187 to 253 |
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Running Amperes |
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A |
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0.11 |
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Electrical |
Power Input |
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W |
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15 |
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- |
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- |
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Controls / Temperature Control |
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Microprocessor / I.C. Thermister |
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Control Unit |
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Wireless Remote Control Unit |
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Timer |
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24-Hour ON or OFF Timer, 1-Hour OFF Timer |
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Fan Speeds |
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Indoor |
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Auto and 3 steps |
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Airflow Direction (Indoor) |
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Horizontal |
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- |
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Features |
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Vertical |
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Auto |
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Air Filter |
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Washable, Anti-Mold |
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Refrigerant |
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R410A |
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Operation Sound |
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Indoor : Hi/Me/Lo |
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dB-A |
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33 / 32 / 31 |
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Refrigerant Tubing Connections |
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Flare Type |
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Refrigerant |
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Narrow tube |
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inch (mm) |
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1/4 (6.35) |
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Tube Diameter |
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Wide tube |
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inch (mm) |
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3/8 (9.52) |
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Accessories |
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Air Clean Filter |
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Wired Remote Controller (Option) |
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STK-RCS-7TWSUA |
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Dimensions & Weight (Indoor Unit) |
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Indoor Unit |
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Individual Unit |
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Body |
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Panel |
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(XMS0972 & PNR-XS1872) |
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(XMS0972) |
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(PNR-XS1872) |
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Unit Dimensions |
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Height |
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inch (mm) |
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12-5/16 (313) |
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11-5/32 (283) |
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1-9/16 (40) |
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Width |
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inch (mm) |
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24-19/32 (625) |
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22-5/8 (575) |
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24-19/32 (625) |
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Depth |
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inch (mm) |
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24-19/32 (625) |
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22-5/8 (575) |
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24-19/32 (625) |
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Package Dimensions |
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Height |
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inch (mm) |
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- |
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11-13/32 (290) |
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4-1/8 (105) |
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Width |
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inch (mm) |
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- |
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24-13/16 (630) |
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26-3/16 (665) |
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Depth |
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inch (mm) |
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- |
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28-1/8 (714) |
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26-11/16 (678) |
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|
Weight |
|
|
Net |
|
|
Ib. (kg) |
|
41.3 (18.7) |
|
|
35.3 (16) |
|
6.0 (2.7) |
|
|
|
|
|
Shipping |
|
|
Ib. (kg) |
|
- |
|
|
41.9 (19) |
|
7.7 (3.5) |
|
|
Shipping Volume |
|
|
|
|
cu.ft (m3) |
|
- |
|
|
4.59 (0.13) |
|
1.65 (0.04) |
|
Remarks: Rating conditions are: |
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|
|
|
DATA SUBJECT TO |
CHANGE WITHOUT NOTICE. |
|||||||||
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||||||
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Cooling: Indoor air temperature |
80°F D.B. / 67°F W.B. |
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|
||||||
|
|
|
Outdoor air temperature |
95°F D.B. / 75°F W.B. |
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|
9
Indoor Unit |
XMS1272 & PNR-XS1872 |
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<230V> |
Type |
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|
|
Semi-Concealed Type Indoor Unit |
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Voltage Rating |
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230V Single-Phase 60Hz |
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|||||||
Performance |
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Cooling |
|
||||
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Total Capacity |
|
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|
BTU/h |
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|
11,900 |
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|||
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kW |
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3.5 |
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Air Circulation (High) |
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ft3/min (m3/h) |
|
|
235 (400) |
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||||
|
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Moisture Removal (High) |
|
|
Pints/h |
|
|
4.26 |
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|||||
Rating |
Available Voltage Range |
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V |
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187 to 253 |
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Running Amperes |
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A |
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0.11 |
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Electrical |
Power Input |
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W |
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17 |
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- |
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- |
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Controls / Temperature Control |
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Microprocessor / I.C. Thermister |
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Control Unit |
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Wireless Remote Control Unit |
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|
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Timer |
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24-Hour ON or OFF Timer, 1-Hour OFF Timer |
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|
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Fan Speeds |
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Indoor |
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Auto and 3 steps |
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|||
|
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Airflow Direction (Indoor) |
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Horizontal |
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- |
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||||
Features |
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Vertical |
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Auto |
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Air Filter |
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Washable, Anti-Mold |
|
||||
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Refrigerant |
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R410A |
|
|||
|
|
Operation Sound |
|
Indoor : Hi/Me/Lo |
|
dB-A |
|
|
34 / 32 / 31 |
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|
||||
|
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Refrigerant Tubing Connections |
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|
|
Flare Type |
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||||||
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Refrigerant |
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|
Narrow tube |
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inch (mm) |
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|
1/4 (6.35) |
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||
|
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Tube Diameter |
|
Wide tube |
|
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inch (mm) |
|
|
3/8 (9.52) |
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|||
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Accessories |
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|
Air Clean Filter |
|
|||
|
|
Wired Remote Controller (Option) |
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|
STK-RCS-7TWSUA |
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|||||||
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Dimensions & Weight (Indoor Unit) |
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|
Indoor Unit |
|
|
Individual Unit |
|||||||
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|
Body |
|
Panel |
|||||||
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(XMS1272 & PNR-XS1872) |
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||||||||||
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|
(XMS1272) |
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(PNR-XS1872) |
|||
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|
Unit Dimensions |
|
Height |
|
|
inch (mm) |
|
12-5/16 (313) |
|
|
11-5/32 (283) |
|
1-9/16 (40) |
|
|
|
|
|
|
Width |
|
|
inch (mm) |
|
24-19/32 (625) |
|
|
22-5/8 (575) |
|
24-19/32 (625) |
|
|
|
|
|
Depth |
|
|
inch (mm) |
|
24-19/32 (625) |
|
|
22-5/8 (575) |
|
24-19/32 (625) |
|
|
Package Dimensions |
|
Height |
|
|
inch (mm) |
|
- |
|
|
11-13/32 (290) |
|
4-1/8 (105) |
|
|
|
|
|
|
Width |
|
|
inch (mm) |
|
- |
|
|
24-13/16 (630) |
|
26-3/16 (665) |
|
|
|
|
|
Depth |
|
|
inch (mm) |
|
- |
|
|
28-1/8 (714) |
|
26-11/16 (678) |
|
|
Weight |
|
|
Net |
|
|
Ib. (kg) |
|
41.3 (18.7) |
|
|
35.3 (16) |
|
6.0 (2.7) |
|
|
|
|
|
Shipping |
|
|
Ib. (kg) |
|
- |
|
|
41.9 (19) |
|
7.7 (3.5) |
|
|
Shipping Volume |
|
|
|
|
cu.ft (m3) |
|
- |
|
|
4.59 (0.13) |
|
1.65 (0.04) |
|
Remarks: Rating conditions are: |
|
|
|
|
DATA SUBJECT TO |
CHANGE WITHOUT NOTICE. |
|||||||||
|
|
|
|
|
|
|
|
|
|
||||||
|
|
Cooling: Indoor air temperature |
80°F D.B. / 67°F W.B. |
|
|
|
|
|
|
||||||
|
|
|
Outdoor air temperature |
95°F D.B. / 75°F W.B. |
|
|
|
|
|
|
10
Indoor Unit |
XMS1272 & PNR-XS1872 |
|
|
|
|
|
|
|
|
|
|
||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<208V> |
Type |
|
|
|
|
|
|
|
Semi-Concealed Type Indoor Unit |
|||||||
Voltage Rating |
|
|
|
|
|
|
208V Single-Phase 60Hz |
|
|||||||
Performance |
|
|
|
|
|
|
|
|
|
Cooling |
|
||||
|
|
Total Capacity |
|
|
|
|
BTU/h |
|
|
11,900 |
|
|
|||
|
|
|
|
|
|
|
|
kW |
|
|
|
3.5 |
|
|
|
|
|
Air Circulation (High) |
|
|
|
ft3/min (m3/h) |
|
|
235 (400) |
|
|
||||
|
|
Moisture Removal (High) |
|
|
Pints/h |
|
|
4.26 |
|
|
|||||
Rating |
Available Voltage Range |
|
|
V |
|
|
187 to 253 |
|
|||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||
|
|
Running Amperes |
|
|
|
|
A |
|
|
0.12 |
|
|
|||
Electrical |
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 |
|
|
|
|
|
Indoor |
|
|
Auto and 3 steps |
|
|||
|
|
Airflow Direction (Indoor) |
|
|
Horizontal |
|
|
|
- |
|
|
||||
Features |
|
|
|
|
|
|
Vertical |
|
|
Auto |
|
||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||
|
|
Air Filter |
|
|
|
|
|
|
|
Washable, Anti-Mold |
|
||||
|
|
Refrigerant |
|
|
|
|
|
|
|
|
R410A |
|
|||
|
|
Operation Sound |
|
Indoor : Hi/Me/Lo |
|
dB-A |
|
|
34 / 32 / 31 |
|
|
||||
|
|
Refrigerant Tubing Connections |
|
|
|
|
|
Flare Type |
|
||||||
|
|
Refrigerant |
|
|
Narrow tube |
|
|
inch (mm) |
|
|
1/4 (6.35) |
|
|
||
|
|
Tube Diameter |
|
Wide tube |
|
|
inch (mm) |
|
|
3/8 (9.52) |
|
|
|||
|
|
Accessories |
|
|
|
|
|
|
|
|
Air Clean Filter |
|
|||
|
|
Wired Remote Controller (Option) |
|
|
|
|
STK-RCS-7TWSUA |
|
|||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Dimensions & Weight (Indoor Unit) |
|
|
|
|
Indoor Unit |
|
|
Individual Unit |
|||||||
|
|
|
|
|
|
Body |
|
Panel |
|||||||
|
|
|
(XMS1272 & PNR-XS1872) |
|
|
||||||||||
|
|
|
|
|
|
|
|
|
|
(XMS1272) |
|
(PNR-XS1872) |
|||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Unit Dimensions |
|
Height |
|
|
inch (mm) |
|
12-5/16 (313) |
|
|
11-5/32 (283) |
|
1-9/16 (40) |
|
|
|
|
|
|
Width |
|
|
inch (mm) |
|
24-19/32 (625) |
|
|
22-5/8 (575) |
|
24-19/32 (625) |
|
|
|
|
|
Depth |
|
|
inch (mm) |
|
24-19/32 (625) |
|
|
22-5/8 (575) |
|
24-19/32 (625) |
|
|
Package Dimensions |
|
Height |
|
|
inch (mm) |
|
- |
|
|
11-13/32 (290) |
|
4-1/8 (105) |
|
|
|
|
|
|
Width |
|
|
inch (mm) |
|
- |
|
|
24-13/16 (630) |
|
26-3/16 (665) |
|
|
|
|
|
Depth |
|
|
inch (mm) |
|
- |
|
|
28-1/8 (714) |
|
26-11/16 (678) |
|
|
Weight |
|
|
Net |
|
|
Ib. (kg) |
|
41.3 (18.7) |
|
|
35.3 (16) |
|
6.0 (2.7) |
|
|
|
|
|
Shipping |
|
|
Ib. (kg) |
|
- |
|
|
41.9 (19) |
|
7.7 (3.5) |
|
|
Shipping Volume |
|
|
|
|
cu.ft (m3) |
|
- |
|
|
4.59 (0.13) |
|
1.65 (0.04) |
|
Remarks: Rating conditions are: |
|
|
|
|
DATA SUBJECT TO |
CHANGE WITHOUT NOTICE. |
|||||||||
|
|
|
|
|
|
|
|
|
|
||||||
|
|
Cooling: Indoor air temperature |
80°F D.B. / 67°F W.B. |
|
|
|
|
|
|
||||||
|
|
|
Outdoor air temperature |
95°F D.B. / 75°F W.B. |
|
|
|
|
|
|
11
Indoor Unit |
XS1872 & PNR-XS1872 |
|
|
|
|
|
|
|
|
|
|
||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<230V> |
Type |
|
|
|
|
|
|
|
Semi-Concealed Type Indoor Unit |
|||||||
Voltage Rating |
|
|
|
|
|
|
230V Single-Phase 60Hz |
|
|||||||
Performance |
|
|
|
|
|
|
|
|
|
Cooling |
|
||||
|
|
Total Capacity |
|
|
|
|
BTU/h |
|
|
17,500 |
|
|
|||
|
|
|
|
|
|
|
|
kW |
|
|
|
5.15 |
|
|
|
|
|
Air Circulation (High) |
|
|
|
ft3/min (m3/h) |
|
|
341 (580) |
|
|
||||
|
|
Moisture Removal (High) |
|
|
Pints/h |
|
|
|
4.89 |
|
|
||||
Rating |
Available Voltage Range |
|
|
V |
|
|
187 to 253 |
|
|||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||
|
|
Running Amperes |
|
|
|
|
A |
|
|
|
0.15 |
|
|
||
Electrical |
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 |
|
|
|
|
|
Indoor |
|
|
Auto and 3 steps |
|
|||
|
|
Airflow Direction (Indoor) |
|
|
Horizontal |
|
|
|
- |
|
|
||||
Features |
|
|
|
|
|
|
Vertical |
|
|
|
Auto |
|
|||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||
|
|
Air Filter |
|
|
|
|
|
|
|
Washable, Anti-Mold |
|
||||
|
|
Refrigerant |
|
|
|
|
|
|
|
|
R410A |
|
|||
|
|
Operation Sound |
|
Indoor : Hi/Me/Lo |
|
dB-A |
|
|
44 / 40 / 36 |
|
|
||||
|
|
Refrigerant Tubing Connections |
|
|
|
|
|
Flare Type |
|
||||||
|
|
Refrigerant |
|
|
Narrow tube |
|
|
inch (mm) |
|
|
1/4 (6.35) |
|
|
||
|
|
Tube Diameter |
|
Wide tube |
|
|
inch (mm) |
|
|
1/2 (12.7) |
|
|
|||
|
|
Accessories |
|
|
|
|
|
|
|
|
Air Clean Filter |
|
|||
|
|
Wired Remote Controller (Option) |
|
|
|
|
STK-RCS-7TWSUA |
|
|||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Dimensions & Weight (Indoor Unit) |
|
|
|
|
Indoor Unit |
|
|
Individual Unit |
|||||||
|
|
|
|
|
|
Body |
|
Panel |
|||||||
|
|
|
(XS1872 & PNR-XS1872) |
|
|
||||||||||
|
|
|
|
|
|
|
|
|
|
(XS1872) |
|
(PNR-XS1872) |
|||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Unit Dimensions |
|
Height |
|
|
inch (mm) |
|
12-5/16 (313) |
|
|
11-5/32 (283) |
|
1-9/16 (40) |
|
|
|
|
|
|
Width |
|
|
inch (mm) |
|
24-19/32 (625) |
|
|
22-5/8 (575) |
|
24-19/32 (625) |
|
|
|
|
|
Depth |
|
|
inch (mm) |
|
24-19/32 (625) |
|
|
22-5/8 (575) |
|
24-19/32 (625) |
|
|
Package Dimensions |
|
Height |
|
|
inch (mm) |
|
- |
|
|
11-13/32 (290) |
|
4-1/8 (105) |
|
|
|
|
|
|
Width |
|
|
inch (mm) |
|
- |
|
|
24-13/16 (630) |
|
26-3/16 (665) |
|
|
|
|
|
Depth |
|
|
inch (mm) |
|
- |
|
|
28-1/8 (714) |
|
26-11/16 (678) |
|
|
Weight |
|
|
Net |
|
|
Ib. (kg) |
|
41.3 (18.7) |
|
|
35.3 (16) |
|
6.0 (2.7) |
|
|
|
|
|
Shipping |
|
|
Ib. (kg) |
|
- |
|
|
41.9 (19) |
|
7.7 (3.5) |
|
|
Shipping Volume |
|
|
|
|
cu.ft (m3) |
|
- |
|
|
4.59 (0.13) |
|
1.65 (0.04) |
|
Remarks: Rating conditions are: |
|
|
|
|
DATA SUBJECT TO |
CHANGE WITHOUT NOTICE. |
|||||||||
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|
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|
||||||
|
|
Cooling: Indoor air temperature |
80°F D.B. / 67°F W.B. |
|
|
|
|
|
|
||||||
|
|
|
Outdoor air temperature |
95°F D.B. / 75°F W.B. |
|
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|
|
12
Indoor Unit |
XS1872 & PNR-XS1872 |
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|
<208V> |
Type |
|
|
|
|
|
|
|
Semi-Concealed Type Indoor Unit |
|||||||
Voltage Rating |
|
|
|
|
|
|
208V Single-Phase 60Hz |
|
|||||||
Performance |
|
|
|
|
|
|
|
|
|
Cooling |
|
||||
|
|
Total Capacity |
|
|
|
|
BTU/h |
|
|
17,500 |
|
|
|||
|
|
|
|
|
|
|
|
kW |
|
|
|
5.15 |
|
|
|
|
|
Air Circulation (High) |
|
|
|
ft3/min (m3/h) |
|
|
341 (580) |
|
|
||||
|
|
Moisture Removal (High) |
|
|
Pints/h |
|
|
|
4.89 |
|
|
||||
Rating |
Available Voltage Range |
|
|
V |
|
|
187 to 253 |
|
|||||||
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||
|
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Running Amperes |
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A |
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0.16 |
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||
Electrical |
Power Input |
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W |
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22 |
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||
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- |
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- |
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|||
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Controls / Temperature Control |
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|
|
Microprocessor / I.C. Thermister |
|
|||||||
|
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Control Unit |
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|
|
|
Wireless Remote Control Unit |
|
||||
|
|
Timer |
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|
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|
|
|
|
24-Hour ON or OFF Timer, 1-Hour OFF Timer |
|||||
|
|
Fan Speeds |
|
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|
|
Indoor |
|
|
Auto and 3 steps |
|
|||
|
|
Airflow Direction (Indoor) |
|
|
Horizontal |
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- |
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|
||||
Features |
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Vertical |
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Auto |
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|||
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||
|
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Air Filter |
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|
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Washable, Anti-Mold |
|
||||
|
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Refrigerant |
|
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|
|
R410A |
|
|||
|
|
Operation Sound |
|
Indoor : Hi/Me/Lo |
|
dB-A |
|
|
44 / 40 / 36 |
|
|
||||
|
|
Refrigerant Tubing Connections |
|
|
|
|
|
Flare Type |
|
||||||
|
|
Refrigerant |
|
|
Narrow tube |
|
|
inch (mm) |
|
|
1/4 (6.35) |
|
|
||
|
|
Tube Diameter |
|
Wide tube |
|
|
inch (mm) |
|
|
1/2 (12.7) |
|
|
|||
|
|
Accessories |
|
|
|
|
|
|
|
|
Air Clean Filter |
|
|||
|
|
Wired Remote Controller (Option) |
|
|
|
|
STK-RCS-7TWSUA |
|
|||||||
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|
|
Dimensions & Weight (Indoor Unit) |
|
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|
|
Indoor Unit |
|
|
Individual Unit |
|||||||
|
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|
|
Body |
|
Panel |
|||||||
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|
|
(XS1872 & PNR-XS1872) |
|
|
||||||||||
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|
|
(XS1872) |
|
(PNR-XS1872) |
|||
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|
||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Unit Dimensions |
|
Height |
|
|
inch (mm) |
|
12-5/16 (313) |
|
|
11-5/32 (283) |
|
1-9/16 (40) |
|
|
|
|
|
|
Width |
|
|
inch (mm) |
|
24-19/32 (625) |
|
|
22-5/8 (575) |
|
24-19/32 (625) |
|
|
|
|
|
Depth |
|
|
inch (mm) |
|
24-19/32 (625) |
|
|
22-5/8 (575) |
|
24-19/32 (625) |
|
|
Package Dimensions |
|
Height |
|
|
inch (mm) |
|
- |
|
|
11-13/32 (290) |
|
4-1/8 (105) |
|
|
|
|
|
|
Width |
|
|
inch (mm) |
|
- |
|
|
24-13/16 (630) |
|
26-3/16 (665) |
|
|
|
|
|
Depth |
|
|
inch (mm) |
|
- |
|
|
28-1/8 (714) |
|
26-11/16 (678) |
|
|
Weight |
|
|
Net |
|
|
Ib. (kg) |
|
41.3 (18.7) |
|
|
35.3 (16) |
|
6.0 (2.7) |
|
|
|
|
|
Shipping |
|
|
Ib. (kg) |
|
- |
|
|
41.9 (19) |
|
7.7 (3.5) |
|
|
Shipping Volume |
|
|
|
|
cu.ft (m3) |
|
- |
|
|
4.59 (0.13) |
|
1.65 (0.04) |
|
Remarks: Rating conditions are: |
|
|
|
|
DATA SUBJECT TO |
CHANGE WITHOUT NOTICE. |
|||||||||
|
|
|
|
|
|
|
|
|
|
||||||
|
|
Cooling: Indoor air temperature |
80°F D.B. / 67°F W.B. |
|
|
|
|
|
|
||||||
|
|
|
Outdoor air temperature |
95°F D.B. / 75°F W.B. |
|
|
|
|
|
|
13
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 Device |
|
|
|
|
|
|
|
|
Type |
|
|
|
|
Internal Controller |
|
|
OverCurrent Protection |
|
|
Yes |
||
|
|
OverHeat Protection |
|
|
Yes |
||
|
Run Capacitor |
|
|
|
Micro F |
- |
|
|
|
|
|
|
|
VAC |
- |
|
|
|
|
|
|
|
|
Drain Pump |
|
|
|
|
|
||
|
Model ... Q'ty |
|
|
|
|
PLD-12230ST-1 ... 1 |
|
|
Rating |
|
Voltage, Hz |
|
|
AC208 to 240V, 60Hz |
|
|
|
|
|
Input |
|
W |
10.8 |
|
Coil Resistance |
|
|
|
Ohm |
333 +/- 10% |
|
|
(Ambient Temp. 68 °F (20 °C)) |
|
|
|
|||
|
Safety Device |
|
Type |
|
|
Thermal Fuse |
|
|
|
|
|
Open |
|
°F (°C) |
293 (145) |
|
|
|
|
|
|
|
|
Heat Exchanger Coil |
|
|
|
|
|
||
|
Coil |
|
|
|
|
Aluminum Plate Fin / Copper Tube |
|
|
Rows |
|
|
|
|
2 |
|
|
Fins per inch |
|
|
|
|
18.1 |
|
|
Face Area |
|
|
|
ft2 (m2) |
2.94 (0.273) |
|
|
|
|
|
|
|
|
DATA SUBJECT TO CHANGE WITHOUT NOTICE. |
Indoor Unit (Panel) |
PNR-XS1872 |
|
|
|
|||
|
|
|
|
|
|
|
|
Flap Motor |
|
|
|
|
|
||
|
Type |
|
|
|
|
Stepping Motor |
|
|
Model ... Q'ty |
|
|
|
|
MP24ZN-12V ... 2 |
|
|
Rating |
|
|
|
|
DC 12V |
|
|
Coil Resistance |
|
|
|
Ohm |
Each Pair of Terminal : 380 +/- 7% |
|
|
(Ambient Temp. 77 °F (25 °C)) |
|
|
|
|||
|
|
|
|
|
|
|
DATA SUBJECT TO CHANGE WITHOUT NOTICE. |
14
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 |
|
|
OverCurrent Protection |
|
|
Yes |
||
|
|
OverHeat Protection |
|
|
Yes |
||
|
Run Capacitor |
|
|
|
Micro F |
- |
|
|
|
|
|
|
|
VAC |
- |
|
|
|
|
|
|
||
Drain Pump |
|
|
|
|
|
||
|
Model ... Q'ty |
|
|
|
|
PLD-12230ST-1 ... 1 |
|
|
Rating |
|
Voltage, Hz |
|
|
AC208 to 240V, 60Hz |
|
|
|
|
|
Input |
|
W |
10.8 |
|
Coil Resistance |
|
|
|
Ohm |
333 +/- 10% |
|
|
(Ambient Temp. 68 °F (20 °C)) |
|
|
|
|||
|
Safety Device |
|
Type |
|
|
Thermal Fuse |
|
|
|
|
|
Open |
|
°F (°C) |
293 (145) |
|
|
|
|
|
|
|
|
Heat Exchanger Coil |
|
|
|
|
|
||
|
Coil |
|
|
|
|
Aluminum Plate Fin / Copper Tube |
|
|
Rows |
|
|
|
|
2 |
|
|
Fins per inch |
|
|
|
|
18.1 |
|
|
Face Area |
|
|
|
ft2 (m2) |
2.94 (0.273) |
|
|
|
|
|
|
|
|
DATA SUBJECT TO CHANGE WITHOUT NOTICE. |
Indoor Unit (Panel) |
PNR-XS1872 |
|
|
|
|||
|
|
|
|
|
|
|
|
Flap Motor |
|
|
|
|
|
||
|
Type |
|
|
|
|
Stepping Motor |
|
|
Model ... Q'ty |
|
|
|
|
MP24ZN-12V ... 2 |
|
|
Rating |
|
|
|
|
DC 12V |
|
|
Coil Resistance |
|
|
|
Ohm |
Each Pair of Terminal : 380 +/- 7% |
|
|
(Ambient Temp. 77 °F (25 °C)) |
|
|
|
|||
|
|
|
|
|
|
|
DATA SUBJECT TO CHANGE WITHOUT NOTICE. |
15
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 |
|
|
OverCurrent Protection |
|
|
Yes |
||
|
|
OverHeat Protection |
|
|
Yes |
||
|
Run Capacitor |
|
|
|
Micro F |
- |
|
|
|
|
|
|
|
VAC |
- |
|
|
|
|
|
|
||
Drain Pump |
|
|
|
|
|
||
|
Model ... Q'ty |
|
|
|
|
PLD-12230ST-1 ... 1 |
|
|
Rating |
|
Voltage, Hz |
|
|
AC208 to 240V, 60Hz |
|
|
|
|
|
Input |
|
W |
10.8 |
|
Coil Resistance |
|
|
|
Ohm |
333 +/- 10% |
|
|
(Ambient Temp. 68 °F (20 °C)) |
|
|
|
|||
|
Safety Device |
|
Type |
|
|
Thermal Fuse |
|
|
|
|
|
Open |
|
°F (°C) |
293 (145) |
|
|
|
|
|
|
|
|
Heat Exchanger Coil |
|
|
|
|
|
||
|
Coil |
|
|
|
|
Aluminum Plate Fin / Copper Tube |
|
|
Rows |
|
|
|
|
2 |
|
|
Fins per inch |
|
|
|
|
18.1 |
|
|
Face Area |
|
|
|
ft2 (m2) |
2.94 (0.273) |
|
|
|
|
|
|
|
|
DATA SUBJECT TO CHANGE WITHOUT NOTICE. |
Indoor Unit (Panel) |
PNR-XS1872 |
|
|
|
|||
|
|
|
|
|
|
|
|
Flap Motor |
|
|
|
|
|
||
|
Type |
|
|
|
|
Stepping Motor |
|
|
Model ... Q'ty |
|
|
|
|
MP24ZN-12V ... 2 |
|
|
Rating |
|
|
|
|
DC 12V |
|
|
Coil Resistance |
|
|
|
Ohm |
Each Pair of Terminal : 380 +/- 7% |
|
|
(Ambient Temp. 77 °F (25 °C)) |
|
|
|
|||
|
|
|
|
|
|
|
DATA SUBJECT TO CHANGE WITHOUT NOTICE. |
16
2-3. Other Component Specifications
Indoor Unit XMS0972 & PNR-XS1872
XMS1272 & PNR-XS1872
XS1872 & PNR-XS1872
•Indoor air temp sensor
(Model:KTEC-35-S98)
|
10 |
|
|
|
|
|
|
|
ohm)(k |
9 |
|
|
|
|
|
|
|
7 |
|
|
|
|
|
|
|
|
Resistance |
8 |
|
|
|
|
|
|
|
6 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
5 |
|
|
|
|
|
|
|
|
4 |
|
|
|
|
|
|
|
|
3 |
|
|
|
|
|
|
|
|
2 |
|
|
|
|
|
|
|
|
1 |
|
|
|
|
|
|
|
|
0 |
50 |
59 |
68 |
77 |
86 |
95 |
104 |
|
|
|||||||
|
|
(10) |
(15) |
(20) |
(25) |
(30) |
(35) |
(40) |
Temperature °F (°C)
•Indoor heat exchanger sensor
(Model:PT2M-51H-S3)
|
200 |
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ohm)(k |
180 |
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160 |
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Resistance |
140 |
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120 |
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100 |
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80 |
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60 |
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40 |
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20 |
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0 |
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32 |
50 |
68 |
86 |
104 122 140 158 176 194 |
|||||||||||||||||
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(0) |
(10) (20) (30) (40) (50) (60) (70) (80) (90) |
Temperature °F (°C)
17
3. DIMENSIONAL DATA
Indoor Unit XMS0972 & PNR-XS1872
XMS1272 & PNR-XS1872
XS1872 & PNR-XS1872
7-11/16 |
8 |
|
4-29/32 A View
|
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Ceilingopeningdimensions |
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23-5/8(600) |
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Suspensionboltpitch |
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21-1/32(534) |
5 |
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12-7/16 |
|
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dimensions |
pitch |
of |
5/8-22(575) 3/32-2 |
A |
Ceiling |
Suspension |
Center panel |
|
|
opening |
(534) |
|
11/16 - 6 |
|
(600) |
bolt |
|
5/16-6 |
|
23 |
1/32-21 |
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5/8- |
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11-5/32(283) |
1-3/16(30) |
8-15/32 |
|
6 3
24-19/32 (625) 14-3/32 (358) 2
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1-3/16 |
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21/32 |
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3-1/8 |
so that |
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suspension the |
or3/16" |
|
|||
or |
theof |
unit |
||
|
more |
inthe contact |
||
suspension -1 |
surface |
willit |
||
selected |
|
the and |
||
the of |
|
shownas long, |
||
should |
|
lowerthe |
is installed.be |
|
be |
(21/32" |
|
right. panel |
|
of gap |
|
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If |
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too |
||
lengthThe bolts there ceilingthe below unit),main figure bolts ceilingthe cannot |
||||
isa |
|
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at |
(625)19/32-24
(334)52-13
7
1 Air intake 2 Discharge outlet 3 Refrigerant tubing (liquid tube) dia. 1/4" (flared)
12-7/8 |
(575)5/8-22 |
1-25/32 |
tube)(gastubingRefrigerantdia. 1/2" (flared) VP20portconnectiontubeDrain(outer dia. 1") portsupplyPower 1/2"-(4holeboltSuspensionx 1-1/8" hole) connectionductintakeairFreshport (dia. 3-7/8") |
31/32thanLess Less than31/32 |
|
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1-25/32 |
4-19/32 |
4 5 6 7 8 |
|
3-5/8 |
|
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2 |
2 1 |
2 |
25/32 |
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5-9/16 |
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1-9/32 |
2-3/4 |
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2-3/32 |
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3/32 |
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1- |
7-23/32 |
1-27/32 |
|
Unit : inch (mm)
18
4. REFRIGERANT FLOW DIAGRAM
4-1. Refrigerant Flow Diagram
Indoor Unit XMS0972 & PNR-XS1872
XMS1272 & PNR-XS1872 Indoor unit
exchangerHeat
Strainer
Indoor Unit XS1872 & PNR-XS1872
Indoor unit
Heat exchanger |
Strainer |
O.D. 3/8" (9.52 mm)
O.D. 1/4" (6.35 mm)
O.D. 1/2" (12.7 mm)
O.D. 1/4" (6.35 mm)
Cooling cycle
Cooling cycle
19
5. ELECTRICAL DATA
5-1. Electric Wiring Diagrams
Indoor Unit XMS0972 & PNR-XS1872
XMS1272 & PNR-XS1872
XS1872 & PNR-XS1872
|
|
THERMISTOR |
|
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21 1 |
2P |
-2 |
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46900-5250 |
|||
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COIL - 1 |
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2 |
(RED) |
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BLK |
2 1 1 COIL |
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BLK |
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2P |
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ROOM |
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(YEL) |
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BLK |
2 ROOM |
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BLK |
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(RED)3P |
8FA2- |
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BLK |
13 1 |
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3 FS |
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BLK |
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FLOATSWITCH |
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(R) |
5 |
ORG |
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45 4 |
BLU |
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FLAP |
23 2 |
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WHT |
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3 |
BRN |
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1 1 |
BLK |
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WHT |
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6 6 |
WHT |
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||
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FLAP (W) |
5 5 |
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5 5 |
5 5 |
(WHT) |
CONTROLLER |
||||
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3 4 |
BLU |
|
3 4 |
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BLU |
3 4 |
|||
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109 9 |
BLU |
1 2 1 |
BRN |
54 4 IND (WHT)5P |
||||||
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4 |
BRN |
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4 |
4 |
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3 2 2 |
ORG |
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3 2 |
ORG |
3 2 2 FLAP |
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1 1 |
BLK |
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BLK |
1 1 |
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7 7 |
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10 |
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6 6 |
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VLT |
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5 |
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ASSY |
78 7 |
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23 2 |
7P |
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YEL |
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8 |
PNK |
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3 |
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||
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LAMPIND |
32 2 |
ORG |
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32 2 RC (WHT) |
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6 6 |
RED |
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1 1 |
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5 5 |
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4 4 |
BRN |
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4 4 |
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3 |
GRN |
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3 |
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1 1 |
BLK |
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1 1 |
4P |
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WHT |
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7 7 |
(RED) |
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6 6 |
7P (WHT) |
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3 43 |
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5 5 |
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BOX |
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21 1 PWM/POW 1SERIAL 2 |
||
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4 |
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2 |
2P |
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1 2 |
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BRN RED ORG YEL PNK BLU VLT |
|
RED WHT GRN |
|||||
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1 2 |
BOX |
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21 1 PWM/POW7P (RED) 2P |
||
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7 7 |
1 2 |
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6 5 |
(WHT) |
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5 4 4 |
SERIAL |
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6 |
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3 3 |
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2 |
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|
BASETERMINAL |
DRAIN PUMP |
MOTORFAN |
GRN/YEL |
|
21 1 |
6P |
CONTROLLER |
|||
|
FM |
|
|
|
|
||||||
|
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|
DP |
|
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|
3 |
DP (BLU) (RED) |
|
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YEL/(RED) |
|
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|||
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YEL/(RED) |
|
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|||
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BLU |
6 6 |
DCM (WHT) |
|
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YEL |
43 |
|
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5 4 |
(BLU) |
|
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5 |
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WHT |
2 3 |
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BLK |
6P |
|
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UNIT |
3 |
|
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RED |
SI |
|
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|
GND |
FERRITE |
|
RED |
|
||||||
OUTDOORTO |
12 |
|
|
WHT |
AC1AC2 |
|
|||||
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BLK |
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CORE |
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20 |
|
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|
6. MAINTENANCE
6-1. Disassembly Procedure
|
To avoid electrical shock hazard, be sure to disconnect power before |
|
Warning |
attempting to disassemble the unit. |
|
When a footstool, etc. is used for disassembling the indoor unit, |
|
|
|
be careful not to fall down. If you fall down, you might be injured seriously. |
|
6-1-1. Remove the air intake grill.
(1)Slide the 2 latches each to the corresponding arrow direction. (Fig. 1 and Fig. 2) Open downward the air intake grill located on the latch side.
(2)Undo the air intake grill drop preventive hook. (Fig. 3)
Undo the 2 hinges for the grill and remove the air intake grill.
Latch
Hinge
|
|
Hook |
|
|
Latch |
Air intake grill |
Hinge |
|
Fig.1 |
Fig.2 |
Fig.3 |
6-1-2. Disconnect the connectors in the control box.
(1)Remove the 2 screws and remove the control box cover. (Fig. 4)
(2)Disconnect the connectors CN04 (FLAP 5P), CN12 (RC 4P) and CN13 (IND 7P). (Fig. 5)
CN04
|
Control PCboard |
CN13 |
CN12 |
Screw |
Control box cover |
|
|
Fig.4 |
|
Fig.5 |
|
21
6-1-3. Remove the ceiling panel.
(1)Open the clamp (4 locations) and remove the 2 lead wires from the clamps. (Fig. 6)
(2)Remove the 4 screws fixing the corner cover (at 3 locations) and indicator cover (at 1 location). (Fig. 6)
(3)Press the center 1 of the cover and remove the cover with the section 2 pulled down. (Fig. 7)
(4)Remove the strap (3 locations) from the hook on the ceiling panel. (Fig. 8)
NOTE There is no strap on the indicator cover.
(5) Remove the bolt (4 locations) with a washer and remove the ceiling panel. (Fig. 9)
Screw |
Clamp |
Corner cover |
|
Indicator |
|
|
|
|
|
|
|
cover |
|
|
|
|
|
Lead wire |
Pull down |
|
|
|
section 2. |
Cover
Clamp
Center 1
Corner cover |
|
Corner cover |
Screw |
Fig.6 |
Fig.7 |
|
|
Bolt |
Strap
|
Remove the strap |
|
from the hook. |
|
Bolt |
Fig.8 |
Fig.9 |
22
6-1-4. Remove the indoor air temperature sensor.
(1)Disconnect the connector CN08 (ROOM 2P) in the control box and remove the indoor air temperature sensor. (Fig. 10)
Indoor air temperature sensor
CN08
Fig.10
6-1-5. Remove the power box and control box.
(1)Remove a screw and remove the terminal cover. (Fig. 11)
(2)Remove the 2 screws and remove the power box cover. (Fig. 11)
(3)Disconnect the power lines (No. 1 and No. 2) / signal line (No. 3) and ground cable from the terminals in the power box. (Fig. 12)
Terminal cover
Screw
Screw
Power box cover
Fig.11
Terminal
1
2 3
Ground cable
Power lines / Signal line
Fig.12
23
(4)Disconnect the connector CN07 (DP 2P) in the power box. (Fig. 13) Remove a screw and disconnect the ground cable. (Fig. 13)
(5)Disconnect the connector CN03 (DCM 6P) in the power box. (Fig. 14)
(6)Remove the 4 screws and remove the power box. (Fig. 14)
(7)Disconnect the connectors CN06 (FS 3P) and CN09 (COIL-1 2P) in the control box. (Fig. 15)
(8)Remove the 2 screws and remove the control box. (Fig. 15)
Screw
Ground cable
1 2 3
CN07
Fig.13
Screw
Screw
Screw
Screw |
CN03 |
Fig.14
CN09
Screw
Screw
CN06
Fig.15
24
NOTE For the removal of the following components, perform any work after removing the indoor
unit (main body) from the ceiling. |
|
|
Main body lower section |
Heat exchanger sensor |
Drain pump |
Float switch |
Turbo fan |
Fan motor |
Heat exchanger |
|
|
1.Perform the work after draining the water to prevent the water leakage from the drain pan.
•Put a bucket, etc., under the drain cap and remove the drain cap to drain the water. (Fig. 16)
2.Refer to the installation instructions for recovery of refrigerant or removal of the power cable or tubing.
6-1-6. Remove the main body lower section.
(1)Remove the 4 screws. (Fig. 16)
(2)Remove the 2 screws. (Fig. 17)
(3)Disconnect the connector CN03 (DCM 6P) in the power box. (Fig. 18)
(4)Lift the main body lower section and remove it from the main body upper section.
Screw |
Screw |
|
|
|
Drain cap |
Main body lower section |
Main body lower section |
Screw |
Screw |
Fig.16
Main body lower section
Main body upper section
Screw
CN03
Fig.17 |
Fig.18 |
25
6-1-7. Remove the heat exchanger sensor.
(1) Remove the heat exchanger sensor from the sensor holder. (Fig. 19)
Heat exchanger sensor
Holder
Fig.19
6-1-8. Remove the drain pump and float switch.
(1)Remove the 2 screws (Fig. 20)
(2)Loosen the clamp and disconnect the drain hose from the drain pump. (Fig. 20)
(3)Remove the drain pump from the main body upper section. (Fig. 20)
(4)Remove a nut and remove the float switch. (Fig. 21)
Drain pump |
Screw |
|
Float switch |
||
|
Nut
Drain hose
Clamp
Fig.20 |
Fig.21 |
26
6-1-9. Remove the turbo fan and fan motor.
(1)Remove a nut and remove the turbo fan. (Fig. 22)
(2)Remove the 2 screws and 3 nuts, and remove the fan motor. (Fig. 23)
Turbo fan
Screw |
Nut |
Nut
Fan motor
Fig.22 |
Fig.23 |
6-1-10. Remove the heat exchanger.
(1)Remove the 3 screws. (Fig. 24)
(2)Remove the 3 screws. (Fig. 25)
(3)Remove the heat exchanger from the main body upper section with the heat exchanger lifted.
Heat exchanger |
Screw |
Screw
Main body upper section
Screw
Fig.24 |
Fig.25 |
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7. FUNCTIONS
7-1. Operation Functions
Emergency operation
Emergency operation is available when the remote controller malfunctions, has been lost, or otherwise cannot be used.
To operate the system, press the OPERATION button, which is also used as the receiver, below the unit display. Each time this button is pressed, the OPERATION lamp changes color to indicate the type of operation. Select the desired type of operation.
COOL |
|
STOP |
|
||
(GREEN) |
|
(Lamp Off) |
•The set temperature is 4°F(2°C) below the detected room temperature in the case of cooling operation. The flap and fan speed settings are AUTO.
SENSOR DRY
During DRY operation, the system adjusts the room temperature and fan speed according to the conditions in the room, in order to maintain a comfortable room environment.
SENSOR DRY operation
• DRY operation is as shown in the figure below.
Load
COOL zone
Azone
Bzone
Conditions are monitored at all times when the room temperature is below 59°F(15°C).
DRY A
The compressor operation frequency varies. The indoor fan operates with 1/f fluctuation.
DRY B
The compressor operates at a low operating frequency. The indoor fan operates with 1/f fluctuation.
Monitor
•Monitoring operation takes place when the room temperature is below 59°F(15°C), or more than 5°F(3°C) below the set temperature.
•When the monitoring range is entered, the compressor stops, and the indoor fan operates with 1/f fluctuation.
PAMcontrol
•In order to further improve inverter performance, control is switched between PWM control at low operation speeds, and PAM control at high operation speeds, making the most effective use of power.
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HIGH POWER
This function acts to raise the power but keeps the AC system in the same operating mode.
This function is set with the HIGH POWER button on the remote controller.
(It can be set regardless of the temperature and fan speed settings.)
HIGH POWER operation from remote controller
The unit operates at maximum output for 30 minutes, regardless of the desired temperature.
The fan speed is 1 step above "High."
Frequency
MAX
0 |
Time |
30 min. 5 min.
Start End
NOTE
When HIGH POWER operation ends, the unit operates at low Hz for 5 minutes, regardless of the thermostat OFF conditions.
When in DRY mode, operation is in the cooling zone.
Lamp colors
OPERATION lamp |
|
DRY operation |
Orange |
COOL operation |
Green |
FAN operation |
Green |
DEFROSTING operation |
Red and Orange |
|
alternately |
OPERATION lamp |
Green |
TIMER lamp |
Green |
HIGH POWER lamp |
Green |
Timer backup
Operation stops if there are no operator controls for 25 hours or longer after unit operation switched from OFF to ON by use of ON timer operation.
NIGHT SETBACK
When NIGHT SETBACK operation is set, the temperature and fan speed settings will be adjusted automatically to allow comfortable sleep.
When NIGHT SETBACK operation is set, " mark" appears on the remote controller. The main unit display lamp also becomes dimmer.
COOL and DRY modes
When the night setback mode is selected, the air conditioner automatically raises the temperature setting 2°F(1°C) when 30 minutes have passed after the selection was made, and then another 2°F(1°C) after another 30 minutes have passed, regardless of the indoor temperature when night setback was selected. This enables you to save energy without sacrificing comfort. This function is convenient when gentle cooling is needed.
Setting temperature
Press the NIGHT SETBACK button
2°F(1°C) |
|
|
2°F(1°C) |
|
|
30 min. |
30 min. |
Time |
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7-2. Protective Functions
Freeze prevention
During COOL or DRY operation, freezing is detected and operation is stopped when the temperature of the indoor heat exchanger matches the conditions below.
1.Freeze-prevention operation is engaged when the temperature of the indoor heat exchanger is below 43°F(6°C).
2.Restart after freeze-prevention operation occurs when the temperature of the indoor heat exchanger reaches 46°F(8°C) or above.
exchanger |
46 |
|
|
|
C |
|
|
|
|
|
|
°F(°C) |
(8) |
|
A |
B |
|
|
|
|
|||
temperature |
43 |
|
|
||
(6) |
|
|
|
|
|
heat |
36 |
|
|
|
|
Indoor |
* |
|
|
|
|
(2) |
|
|
|
||
|
|
|
|
|
|
|
|
a |
b |
c |
d |
a.Area: Automatic capacity control
b.When the temperature drops below Point A, the operation frequency is reduced by a certain proportion.
c.Area: Frequency increase is prohibited.
d.When the temperature reaches Point C or above, freezing prevention is ended and control is the same as in the a area.
*When the temperature drops to below 36°F(2°C) (continuously for 2 minutes or longer), the compressor stops. Once the freeze condition is detected, the air conditioner will work less than the maximum frequency until it is turned off.
30