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SPLIT-TYPE ROOM AIR CONDITIONER
Owner's Manual &
Installation Manual
Model:
MS-09CRFB
MS-12CRF1B
MS-18CRFB
MS-22CRFB
IMPORTANT NOTE:
Read this manual carefully before installing
or operating your new air conditioning
unit. Make sure to save this manual for
future reference.
Please check the applicable models, technical
data, F-GAS(if any) and manufacturer information
from the "Owner's Manual - Product Fiche "
in the packaging of the outdoor unit.
(European Union products only)
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Table of Contents
Related Manuals for Midea MS-09CRFB
Summary of Contents for Midea MS-09CRFB
- Page 1 SPLIT-TYPE ROOM AIR CONDITIONER Owner’s Manual & Installation Manual Model: MS-09CRFB MS-12CRF1B MS-18CRFB MS-22CRFB IMPORTANT NOTE: Read this manual carefully before installing or operating your new air conditioning unit. Make sure to save this manual for future reference. Please check the applicable models, technical data, F-GAS(if any) and manufacturer information from the “Owner's Manual - Product Fiche ”...
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Page 2: Table Of Contents
Table of Contents Safety Precautions ....................03 Owner’s Manual Unit Specifications and Features ................07 1. Indoor unit display..............................07 2. Operating temperature............................08 3. Other features ...............................09 4. Setting angle of airflow............................10 5. Manual operation (without Remote)........................10 Care and Maintenance ..................11 Troubleshooting ....................13 Installation Manual Accessories ......................16... -
Page 3: Safety Precautions
Safety Precautions Read Safety Precautions Before Operation and Installation Incorrect installation due to ignoring instructions can cause serious damage or injury. The seriousness of potential damage or injuries is classified as either a WARNING or CAUTION. CAUTION WARNING This symbol indicates the possibility of This symbol indicates the possibility property damage or serious consequences. - Page 4 CAUTION • Turn off the air conditioner and disconnect the power if you are not going to use it for a long time. • Turn off and unplug the unit during storms. • Make sure that water condensation can drain unhindered from the unit. •...
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Page 5: Owner's Manual
4. The appliance must be disconnected from the supply mains before cleaning your unit or any other maintenance. 5. UV-C barriers bearing the ultraviolet radiation hazard symbol should not be removed. WARNING This appliance contains an UV emitter. Do not stare at the light source. WARNINGS FOR PRODUCT INSTALLATION 1. - Page 6 WARNING for Using R32/R290 Refrigerant When flammable refrigerant are employed, appliance shall be stored in a well -ventilated area where the room size corresponds to the room area as specifiec for operation. For R32 frigerant models: Appliance shall be installed, operated and stored in a room with a floor area larger than 4m . For R290 refrigerant models, appliance shall be installed, operated and stored in a room with a floor area larger than: <=9000Btu/h units: 13m...
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Page 7: Unit Specifications And Features
Unit Specifications and Features Indoor unit display NOTE: Different models have different front panels and display windows. Not all the display codes describing below are available for the air conditioner you purchased. Please check the indoor display window of the unit you purchased. Illustrations in this manual are for explanatory purposes. -
Page 8: Operating Temperature
Operating temperature When your air conditioner is used outside of the following temperature ranges, certain safety protection features may activate and cause the unit to disable. Inverter Split Type FOR OUTDOOR UNITS COOL mode HEAT mode DRY mode WITH AUXILIARY 16°C - 32°C 0°C - 30°C 10°C - 32°C... -
Page 9: Other Features
A guide on using the infrared remote is not • Breeze Away (some units) included in this literature package. Not all This feature avoids direct air flow blowing on the functions are available for the air the body and make you feel indulging in conditioner, please check the indoor display silky coolness. -
Page 10: Setting Angle Of Airflow
• Setting Angle of Air Flow Setting vertical angle of air flow While the unit is on, use the SWING/ DIRECT button on remote control to set the direction (vertical angle) of airflow. Please refer to the Remote Control Manual for details. NOTE ON LOUVER ANGLES When using COOL or DRY mode, do not set louver at too vertical an angle for long periods... -
Page 11: Care And Maintenance
Care and Maintenance Rinse the filter with fresh water, then shake Cleaning Your Indoor Unit off excess water. BEFORE CLEANING OR Dry it in a cool, dry place, and refrain from MAINTENANCE exposing it to direct sunlight. When dry, re-clip the air freshening filter to ALWAYS TURN OFF YOUR AIR CONDITIONER the larger filter, then slide it back into the SYSTEM AND DISCONNECT ITS POWER SUPPLY... - Page 12 Maintenance – CAUTION Long Periods of Non-Use • Before changing the filter or cleaning, If you plan not to use your air conditioner for an turn off the unit and disconnect its power extended period of time, do the following: supply.
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Page 13: Troubleshooting
Troubleshooting SAFETY PRECAUTIONS If ANY of the following conditions occurs, turn off your unit immediately! • The power cord is damaged or abnormally warm • You smell a burning odor • The unit emits loud or abnormal sounds • A power fuse blows or the circuit breaker frequently trips •... - Page 14 Issue Possible Causes The outdoor unit The unit will make different sounds based on its current operating mode. makes noises Dust is emitted from The unit may accumulate dust during extended periods of non-use, which will be either the indoor or emitted when the unit is turned on.
- Page 15 Problem Possible Causes Solution Wait for the power to be restored Power failure The power is turned off Turn on the power The unit is not The fuse is burned out Replace the fuse working Replace batteries Remote control batteries are dead The Unit’s 3-minute protection Wait three minutes after restarting has been activated...
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Page 16: Accessories
Accessories The air conditioning system comes with the following accessories. Use all of the installation parts and accessories to install the air conditioner. Improper installation may result in water leakage, electrical shock and fire, or cause the equipment to fail. The items are not included with the air conditioner must be purchased separately. -
Page 17: Installation Summary - Indoor Unit
Installation Summary - Indoor Unit 15cm (5.9in) 12cm 12cm (4.75in) (4.75in) 2.3m (90.55in) Attach Mounting Plate Select Installation Location Determine Wall Hole Position Drill Wall Hole Connect Piping Connect Wiring (not applicable for some locations in North America ) Wrap Piping and Cable Prepare Drain Hose (not applicable for some locations in North America ) STEP... -
Page 18: Unit Parts
Unit Parts NOTE: The installation must be performed in accordance with the requirement of local and national standards. The installation may be slightly different in different areas. Air-break switch （ 1 ） （ 2 ） Functional Filter (On Back of Remote Controller Wall Mounting Plate Main Filter - Some Units) -
Page 19: Indoor Unit Installation
Indoor Unit Installation NOTE ABOUT WALL HOLE: Installation Instructions – Indoor unit If there is no fixed refrigerant piping: PRIOR TO INSTALLATION While choosing a location, be aware that you Before installing the indoor unit, refer to the should leave ample room for a wall hole (see label on the product box to make sure that the Drill wall hole for connective piping step) model number of the indoor unit matches the... -
Page 20: Drill Wall Hole For Connective Piping
348.4mm(13.7in) Step 3: Drill wall hole for connective piping 179mm(7.1in) 101mm(4.0in) 136mm(5.4in) 1. Determine the location of the wall hole based on the position of the mounting plate. Refer Indoor unit outline to Mounting Plate Dimensions. 2. Using a 65mm (2.5in) or 90mm(3.54in) (depending on models )core drill, drill a Left rear wall Right rear wall... -
Page 21: Prepare Refrigerant Piping
Step 5: Connect drain hose Step 4: Prepare refrigerant piping The refrigerant piping is inside an insulating By default, the drain hose is attached to the left- sleeve attached to the back of the unit. You hand side of unit (when you’re facing the back must prepare the piping before passing it of the unit). -
Page 22: Connect Signal And Power Cables
WARNING BEFORE PERFORMING ANY ELECTRICAL WORK, READ THESE BEFORE PERFORMING ANY ELECTRICAL REGULATIONS OR WIRING WORK, TURN OFF THE MAIN POWER TO THE SYSTEM. 1. All wiring must comply with local and national electrical codes, regulations and must be Step 6: Connect signal and power cables installed by a licensed electrician. -
Page 23: Wrap Piping And Cables
pen front panel of the indoor unit. 1. O NOTE ABOUT WIRING Using a screwdriver, open the wire box cover on the right side of the unit. This will reveal THE WIRING CONNECTION PROCESS MAY the terminal block. DIFFER SLIGHTLY BETWEEN UNITS AND Front view REGIONS. -
Page 24: Mount Indoor Unit
Step 8: Mount indoor unit Connect drain hose and refrigerant piping (refer to Refrigerant Piping Connection If you installed new connective piping to the section of this manual for instructions). outdoor unit, do the following: Keep pipe connection point exposed to If you have already passed the refrigerant perform the leak test (refer to Electrical piping through the hole in the wall, proceed... -
Page 25: Outdoor Unit Installation
Outdoor Unit Installation Install the unit by following local codes and install unit in the following locations: DO NOT regulations , there may be differ slightly between different regions. Near an obstacle that will block air inlets and outlets Near a public street, crowded areas, or where noise from the unit will disturb others Near animals or plants that will be harmed by hot air discharge... -
Page 26: Install Drain Joint
Step 3: Anchor outdoor unit Step 2: Install drain joint(Heat pump unit only) The outdoor unit can be anchored to the Before bolting the outdoor unit in place, you must install the drain joint at the bottom of the unit. ground or to a wall-mounted bracket with Note that there are two different types of drain bolt(M10). - Page 27 Outdoor Unit Dimensions (mm) Mounting Dimensions W x H x D Distance A (mm) Distance B (mm) 681x434x285 (26.8”x17.1”x11.2”) 460 (18.1”) 292 (11.5”) 700x550x270 (27.5”x21.6”x10.6”) 450 (17.7”) 260 (10.2”) 450 (17.7”) 260 (10.2”) 700x550x275 (27.5”x21.6”x10.8”) 720x495x270 (28.3”x19.5”x10.6”) 255 (10.0”) 452 (17.8”) 302(11.9”) 452 (17.8”) 728x555x300 (28.7”x21.8”x11.8”)
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Page 28: Connect Signal And Power Cables
Step 4: Connect signal and power cables 7. Insulate unused wires with PVC electrical tape. Arrange them so that they do not touch any The outside unit’s terminal block is protected by electrical or metal parts. an electrical wiring cover on the side of the unit. 8. -
Page 29: Refrigerant Piping Connection
Refrigerant Piping Connection When connecting refrigerant piping, do not let substances or gases other than the specified refrigerant enter the unit. The presence of other gases or substances will lower the unit’s capacity, and can cause abnormally high pressure in the refrigeration cycle. This can cause explosion and injury. -
Page 30: Remove Burrs
Step 2: Remove burrs PIPING EXTENSION BEYOND FLARE FORM Burrs can affect the air-tight seal of refrigerant Outer Diameter of A (mm) piping connection. They must be completely Max. Pipe (mm) Min. Max. removed. Ø 6.35 (Ø 0.25”) 0.7 (0.0275”) 1.3 (0.05”) Hold the pipe at a downward angle to prevent Ø... - Page 31 Tighten the flare nut as tightly as possible by hand. Using a spanner, grip the nut on the unit tubing. While firmly gripping the nut on the unit tubing, use a torque wrench to tighten the flare nut according to the torque values in the Torque Requirements table below.
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Page 32: Air Evacuation
Air Evacuation If there is a change in system pressure, refer Preparations and Precautions to Gas Leak Check section for information Air and foreign matter in the refrigerant circuit can on how to check for leaks. If there is no cause abnormal rises in pressure, which can damage change in system pressure, unscrew the cap from the packed valve (high pressure valve). -
Page 33: Note On Adding Refrigerant
Note on Adding Refrigerant Some systems require additional charging depending on pipe lengths. The standard pipe length varies according to local regulations. For example, in North America, the standard pipe length is 7.5m (25’). In other areas, the standard pipe length is 5m (16‘). The refrigerant should be charged from the service port on the outdoor unit’s low pressure valve. -
Page 34: Electrical And Gas Leak Checks
Electrical and Gas Leak Checks Before Test Run WARNING – RISK OF ELECTRIC SHOCK Only perform test run after you have completed ALL WIRING MUST COMPLY WITH LOCAL the following steps: AND NATIONAL ELECTRICAL CODES, • Electrical Safety Checks – Confirm that AND MUST BE INSTALLED BY A LICENSED the unit’s electrical system is safe and ELECTRICIAN. -
Page 35: Test Run
Test Run DOUBLE-CHECK PIPE CONNECTIONS Test Run Instructions During operation, the pressure of the You should perform the Test Run for at least 30 refrigerant circuit will increase. This may minutes. reveal leaks that were not present during your Connect power to the unit. initial leak check. - Page 36 The design and specifications are subject to change without prior notice for product improvement. Consult with the sales agency or manufacturer for details. Any updates to the manual will be uploaded to the service website, please check for the latest version. CS445UI-18C(AG)(C)