MrCool DIY E Star Series Installation & Owner's Manual
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MrCool DIY E Star Series Installation & Owner's Manual

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Please read this manual carefully before installation and keep it for future reference.
Installation & Owner's
Manual
DIY
E Star™ Series
®
Due to updates and constantly improving performance, the information and instructions within this
manual are subject to change without notice. Please visit www.mrcool.com/documentation to
ensure you have the latest version of this manual.
Version Date: 05-05-22

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  • Page 1 E Star™ Series ® Due to updates and constantly improving performance, the information and instructions within this manual are subject to change without notice. Please visit www.mrcool.com/documentation to ensure you have the latest version of this manual. Version Date: 05-05-22...

  • Page 2: Table Of Contents

    WILL VOID THE WARRANTY. DISCLAIMER: You are assuming the risk by handling materials containing refrigerants under pressure, that if not handled properly, can cause bodily injury. If you do not feel comfortable conducting this installation process, Page 1 mrcool.com...
  • Page 3 Electrical Connections ........33 Electrical and Gas Leak Checks ..... 36 Test Run ............37 Troubleshooting ..........39 Indoor Error Unit Display ............. 41 Troubleshooting by Error Code ........... 43 EU Disposal Guidelines ........58 *Pat. https://mrcool.com/mrcool-patents/ mrcool.com Page 2...

  • Page 4: Safety Precautions

    DO NOT install the unit within 3 ft (1 m) of any combustible gas if the unit is equipped with an auxiliary heater. DO NOT operate the air conditioner with wet hands. This could cause electrical shock. DO NOT turn on the power until the installation has been completed. Page 3 mrcool.com...

  • Page 5: Cautions

    fire, and/or injury. Call your local dealer, or MRCOOL tech support at (270) 366-0457, for further assistance. 3. In North America, service or repair must be performed in accordance with the requirements of NEC and CEC (by authorized personnel or authority having jurisdiction only).
  • Page 6 50 tonnes of CO equivalent, and has a leak-detection system installed, it must be checked for leaks at least every 24 months. 6. Keeping a record of all leak checks for the lifetime of the unit is strongly recommended. Page 5 mrcool.com...

  • Page 7: Parts Overview

    (Interior/Air Handler) Air inlet rear Front Panel Air Filter Wall Mounting Plate Air outlet bottom Quick Connect® Line Set (refrigerant pipe) Pat. https://mrcool.com/mrcool-patents/ Fresh Air Filter MC Cable inlet rear Air inlet si e Electrical Access Air outlet Outdoor Unit (Exterior/Condenser) Fig.

  • Page 8: Display Window

    (cooling & heating units). will display when the unit is self-cleaning. will display when the 46.4°F (8°C) heating feature is activated. Page 7 mrcool.com...

  • Page 9: Accessories

    Mini-Stat™ ® Stat™ Box) MRCOOL Mini-Stat™ ® (in Mini User Manual Stat™ Box) MRCOOL Mini-Stat User Manual Batteries Small Filter (depending on model) Seal (for cooling & heating models) Drain joint (for cooling & heating models) Note: Illustrations are for explanatory purposes only - The actual shape and size may vary.
  • Page 10 Please read this manual carefully before installation and keep it for future reference. Owner’s Manual Installation & Owner’s Manual E-Star™ DIY Series For more details visit www.MrCool.com Please read this manual carefully before installation and keep it for future reference. Remote Control Remote Control User Manual Manual For more details visit www.MrCool.com...

  • Page 11: Operating Instructions

    Manual control button 4. Press the MANUAL CONTROL BUTTON a second time to activate the FORCED COOLING FUNCTION. 5. Press the MANUAL CONTROL BUTTON a third time to turn the unit off. Fig 2.1 6. Close the front panel. mrcool.com Page 10...

  • Page 12: Airflow Directional Control

    10 seconds. Louver NOTE: The open angle of the vertical louver should not be set too small when using COOL or Range HEAT mode, as it will restrict airflow and reduce Fig. 2.4 performance of the unit. Page 11 mrcool.com...

  • Page 13: How The A/C & Heat Pump Work

    • Limit energy usage (run time) using the TIMER Closing the curtains Doors and windows function. should be kept while heating also • Inspect the air filters periodically, and clean them closed. helps keep the heat in as needed. mrcool.com Page 12...

  • Page 14: Special Functions

    This will allow the unit to be controlled by remote control and/or the smartphone app. For the USB device access, replacement, and maintenance operations must be carried out by professional staff. Clean Air Filter Reminder (optional): LED button on Replace Air Filter Reminder (optional): LED button Mute Function (optional): Press the LED Page 13 mrcool.com...

  • Page 15: Care And Maintenance

    Some models are equipped with suspension bars that are required to prop the lid open. 2. Use the filter tabs to lift filter slightly upward and then pull it toward you. mrcool.com Page 14 mrcool.com...
  • Page 16 1. Check for damaged or disconnected wires. 2. Clean the indoor unit and filters. 3. Check for water and oil leaks. 4. Check for blockages in the airflow inlet and outlet. 5. Replace batteries in the remote control. Page 15 mrcool.com...

  • Page 17: Indoor Unit Installation

    A location that is at least 1 meter make it airtight. from all other electronic devices (e.g., TV, radio, computer) mrcool.com Page 16...
  • Page 18 If the wall is made of brick, concrete, or a similar sensitive components. material, drill 0.2 in (5 mm) diameter holes in the wall and insert the sleeve anchors provided. Secure the mounting plate to the wall by tightening the screws directly into the anchors. Page 17 mrcool.com...
  • Page 19 1.25-1.95 in (30-50 mm), depending on the model. 1.2-1.95 1.2-1.95 (30-50 mm) (30-50 mm) Fig. 4.4 Adjustment range of indoor unit to the left or right mrcool.com Page 18...

  • Page 20: Prepare Refrigerant Piping

    DRAIN HOSE MUST BE ON BOTTOM The drain hose must be placed at the bottom of the bundle. If it is not, it could cause the drain pan to overflow, which could lead to fire or water damage. Page 19 mrcool.com...

  • Page 21: Outdoor Unit Installation

    In a location that exposes the unit to others large amounts of forced water. Protected from prolonged periods of exposure to direct sunlight or rain If installed in an area where snowfall is expected, take appropriate measures to prevent ice buildup and coil damage mrcool.com Page 20...

  • Page 22: Install Drain Joint

    Before bolting the outdoor unit in place, you must install the drain joint at the bottom of the unit. NOTE: there are two different types of drain joints depending on the type of outdoor unit. Page 21 mrcool.com...
  • Page 23 3. Clean concrete dust away from the holes. TIMES. 4. Place a nut on the end of each expansion bolt. 5. Hammer expansion bolts into the pre-drilled holes. 6. Remove the nuts from the expansion bolts, and place outdoor unit on bolts. mrcool.com Page 22...
  • Page 24 6. Check that the mounting brackets are level. 7. If the feet of the outdoor unit have rubber pads already installed, and you’re using a MRCOOL ® wall-mounted bracket, remove them before attempting to mount the condenser to the bracket.

  • Page 25: Refrigerant Piping Connections

    3. Pack the wall hole with the supplied Neoprene (or Spray Foam can be used) to seal the hole, filling any Connect directly to space that was not taken up by the refrigerant exterior condensor piping and lines. Fig. 6.1 mrcool.com Page 24...

  • Page 26: Connect Line Set To Indoor Unit

    3/4“ / 19 mm confident connecting the line set connectors yourself, Or 2x Crescent 7/8” / 22 mm 15/16“ / 24 mm it is imperative that you contact the MRCOOL ® (adjustable-type) 15/16” / 24 mm 1“ / 26 mm customer service team or an HVAC professional.
  • Page 27 * If an HVAC torque wrench is NOT available: Using two wrenches you used to tighten the connector, once the connector is snug, turn the wrench slightly beyond that point to torque the connector,but do not overtighten it. mrcool.com Page 26...

  • Page 28: Connect Line Set To Outdoor Unit

    This will also void the warranty. NOTE: Keep excess refrigerant hose coiled. Wrap with protective tape and store behind the condenser in a horizontal position (flat with the ground). Page 27 mrcool.com...
  • Page 29 18-20 lb/ft FA06 3/8 in (9.5 mm) (24.4-27.1 Nm) 30-35 lb/ft FA09 1/2 in (12.7 mm) (40.6-47.4 Nm) 45-50 lb/ft FA12 3/4 in (19.1 mm) (61.0-67.7 Nm) 60-65 lb/ft FA16 1 in (25.4 mm) (81.3-88.1 Nm) mrcool.com Page 28...

  • Page 30: Opening Refrigerant Valves Of Outdoor Unit

    For more information about checking for leaks, please refer to the Electrical and Gas Leak Checks section of the manual. Page 29 mrcool.com...

  • Page 31: Wrap Piping Connections

    If you would like the exterior piping on the side of your home to have a sleeker, more attractive look and add some extra protection in the process, you can purchase a MRCOOL ® LineGuard Line Set Cover. This will encase ®...

  • Page 32: Connect Drain Pipe

    To prevent unwanted leaks, be sure that the of the drain hose in factory installed hollow center rubber plug is water or in containers installed in the unused drain hole. that collect water. This will prevent proper drainage. Fig. 6.3d Page 31 mrcool.com...
  • Page 33 Quick Connect ® Connections Drainage Pipe Quick Connect® Line Set MC Cable (refrigerant pipe) Pat. https://mrcool.com/mrcool-patents/ Sound Deadening Pads to wrap connections once connected and checked for leaks. Coiled, excess refrigerant line Outdoor Unit (Exterior / Condenser) BEFORE PERFORMING ELECTRICAL WORK, READ THESE REGULATIONS DO NOT connect another appliance to the outlet for the unit.

  • Page 34: Electrical Connections

    Make sure you clearly distinguish the live (”L”) wires from the other wires. • All wiring must be performed in accordance with the wiring diagrams shown in Fig. 7.1 and demonstrated in the images shown here. Page 33 mrcool.com...
  • Page 35 The specifications of the fuse are printed on the circuit board. EXAMPLE (Indoor Unit): T3.15AL/250VAC, T5AL/250VAC, T3.15A/250VAC, T5A/250VAC, etc. EXAMPLE (Outdoor Unit): T20A/250VAC (<=18,000 Btu/h units), T30A/250VAC (>18,000 Btu/h units), etc. mrcool.com Page 34...
  • Page 36 Match up each wire with the correct port, and firmly screw the u-lug of each wire to its corresponding terminal. Now, screw the ground wire into the bottom screw of the terminal block, as shown in the image below. Ground wire Connection Page 35 mrcool.com...

  • Page 37: Electrical And Gas Leak Checks

    IF ELECTRICAL LEAKAGE IS DETECTED If electrical leakage is detected, turn off the unit immediately and call a licensed electrician to find and resolve the cause of the leakage. NOTE: This may not be required for some locations in North America. mrcool.com Page 36...

  • Page 38: Test Run

    4. Let each function run for 5 minutes and then perform the checks listed in the table to the right. Unit performs HEAT function properly Indoor unit louvers rotate properly Indoor unit responds to remote controller Page 37 mrcool.com...
  • Page 39 Fig 9.1). Press it 2 times to select the COOL function. Also, if you can spare a few minutes today, and leave a review of your new MRCOOL ® Perform Test Run as normal. product on the partner site where you purchased it, it would really mean a lot to us.

  • Page 40: Troubleshooting

    • Press ON/OFF button on remote control to restart operation. NOTE: If problem persists, contact a local dealer or your nearest customer service center. Provide them with a detailed description of the unit malfunction as well as the model number of your unit. Page 39 mrcool.com...
  • Page 41 Make sure that all doors and windows Cold air is entering through doors and Poor heating are closed during use. windows performance Low refrigerant due leak or long-term use Check for leaks, re-seal if necessary and top off refrigerant mrcool.com Page 40...

  • Page 42: Indoor Error Unit Display

    Should your unit display any of the error codes above, turn off the unit and contact a qualified service technician to investigate the matter further. Page 41 mrcool.com...
  • Page 43 Communication error between outdoor main chip and flash FLASH 10.2 compressor driven chip ****Disclaimer**** The error codes and descriptions are for reference only. If your system displays any of these codes contact a qualified technician to investigate the matter further. mrcool.com Page 42...

  • Page 44: Troubleshooting By Error Code

    EC 51. ****Disclaimer**** The error codes and descriptions are for reference only. If your system displays any of these codes contact a qualified technician to investigate the matter further. Page 43 mrcool.com...
  • Page 45 Is power LED is on? expansion valve. PCB are OK. Replace IPM board ****Disclaimer**** The error codes and descriptions are for reference only. If your system displays any of these codes contact a qualified technician to investigate the matter further. mrcool.com Page 44...
  • Page 46 Note: The picture and the value are only for reference, actual condition and specific value may vary. ****Disclaimer**** The error codes and descriptions are for reference only. If your system displays any of these codes contact a qualified technician to investigate the matter further. Page 45 mrcool.com...
  • Page 47 Replace the PCB. Is it within normal parameters? Replace the fan motor Disclaimer: The error codes and descriptions are for reference only. If your system displays any of these codes contact a qualified technician to investigate the matter further. mrcool.com Page 46...
  • Page 48 50V (115V power supply), the PCB needs to be replaced. ****Disclaimer**** The error codes and descriptions are for reference only. If your system displays any of these codes contact a qualified technician to investigate the matter further. Page 47 mrcool.com...
  • Page 49 The illustration and value above are for reference only, actual appearance and value may vary. ****Disclaimer**** The error codes and descriptions are for reference only. If your system displays any of these codes contact a qualified technician to investigate the matter further. mrcool.com Page 48...
  • Page 50 Replace the indoor main PCB. Does the error still exist? Replace the display board. ****Disclaimer**** The error codes and descriptions are for reference only. If your system displays any of these codes contact a qualified technician to investigate the matter further. Page 49 mrcool.com...
  • Page 51 Check system blockages and clear them if any are present. ****Disclaimer**** The error codes and descriptions are for reference only. If your system displays any of these codes contact a qualified technician to investigate the matter further. mrcool.com Page 50...
  • Page 52 Note: For certain models, the outdoor PCB cannot be removed separately. In this case, the outdoor electric control box should be replaced as a whole. ****Disclaimer**** The error codes and descriptions are for reference only. If your system displays any of these codes contact a qualified technician to investigate the matter further. Page 51 mrcool.com...
  • Page 53 Note: For certain models, the outdoor PCB cannot be removed separately. In this case, the outdoor electric control box should be replaced as a whole. ****Disclaimer**** The error codes and descriptions are for reference only. If your system displays any of these codes contact a qualified technician to investigate the matter further. mrcool.com Page 52...
  • Page 54 Note: For certain models, the outdoor PCB cannot be removed separately. In this case, the outdoor electric control box should be replaced as a whole. ****Disclaimer**** The error codes and descriptions are for reference only. If your system displays any of these codes contact a qualified technician to investigate the matter further. Page 53 mrcool.com...
  • Page 55 Is the problem resolved? Check whether the refrigerant system is functioning properly. ****Disclaimer**** The error codes and descriptions are for reference only. If your system displays any of these codes contact a qualified technician to investigate the matter further. mrcool.com Page 54...
  • Page 56 Check the refrigerant system and ensure it is functioning properly. ****Disclaimer**** The error codes and descriptions are for reference only. If your system displays any of these codes contact a qualified technician to investigate the matter further. Page 55 mrcool.com...
  • Page 57 Note: For certain models, outdoor PCB could not be removed separately. In this case, the outdoor electric control box should be replaced as a whole. ****Disclaimer**** The error codes and descriptions are for reference only. If your system displays any of these codes contact a qualified technician to investigate the matter further. mrcool.com Page 56...
  • Page 58 Note: For certain models, outdoor PCB could not be removed separately. In this case, the outdoor electric control box should be replaced as a whole. ****Disclaimer**** The error codes and descriptions are for reference only. If your system displays any of these codes contact a qualified technician to investigate the matter further. Page 57 mrcool.com...

  • Page 59: Eu Disposal Guidelines

    Sell the appliance to certified scrap metal dealers. Special notice Disposing of this appliance in the forest or other natural surroundings endangers your health and is bad for the environment. Hazardous substances may leak into the ground water and enter the food chain. mrcool.com Page 58...
  • Page 60 E Star Series ® ™ Due to updates and constantly improving performance, the information and instructions within this manual are subject to change without notice. Please visit www.mrcool.com/documentation to ensure you have the latest version of this manual.

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