Friedrich MWM18Y3J Installation And Operation Manual
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Friedrich MWM18Y3J Installation And Operation Manual

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Models
Indoor Unit
Outdoor Unit
960-910-06
MWM18Y3J
MRM18Y3J
MWM24Y3J
MRM24Y3J

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Summary of Contents for Friedrich MWM18Y3J

  • Page 1 Models Indoor Unit MWM18Y3J MWM24Y3J Outdoor Unit MRM18Y3J MRM24Y3J 960-910-06...

  • Page 2: Table Of Contents

    Content Operation Notices Precautions......................1 Parts name ......................2 Remote Screen Operation Guide Buttons on remote controller .................3 Introduction for icons on display screen ..............3 Introduction for buttons on remote controller ............4 Function introduction for combination buttons ............7 Operation guide .....................8 Replacement of batteries in remote controller ............8 Emergency operation ....................9 Maintenance Clean and maintenance..................9...

  • Page 3: Precautions

    Precautions Warning ● Do not connect air conditioner to multi-purpose socket.Otherwise, it may cause fire hazard ● Disconnect power supply when cleaning air conditioner. Otherwise, it may cause electric shock. ● Do not spray water on indoor unit. It may cause electric shock or malfunction. ●...

  • Page 4: Parts Name

    Parts name Indoor Unit panel air inlet filte air outlet horizontal louver display temp. indicator drying indicator cooling indicator power indicator heating indicator receiver window aux.button remote control Outdoor Unit air inlet handle handle air outlet Notice: Actual product may be different from above graphics, please refer to actual products.

  • Page 5: Remote Screen Operation Guide Buttons On Remote Controller

    Operation of Remote Controller START / STOP Press to start or stop operation. : Press to decrease temperature setting. : Press to increase temperature setting. AUTO Press to set fan speed. MODE Press to select operation mode (AUTO/COOL/DRY/FAN/HEAT). SENSOR CLOCK Press to set clock.

  • Page 6: Introduction For Buttons On Remote Controller

    Operation of Remote Controller 17 18 19 20 MODE icon: LIGHT icon: If MODE button is pressed, is displayed by pressing the current operation mode icon LIGHT button. Press LIGHT button again to clear the display. (AUTO), ( COOL), (DRY), (FAN) or (HEAT LOCK icon:...
  • Page 7 Operation of Remote Controller 17 18 19 20 icon: SENSOR icon: EXTEND is displayed when pressing the is displayed when pressing the button. Press this button button. Press this button SENSOR EXTEND again to clear the display. again to clear the display. FAN SPEED display: Press FAN button to select the desired fan speed setting (AUTO-...

  • Page 8: Remote Control Instructions

    Remote Control Instructions Remote Controller Description START / STOP Press this button to turn on the unit .Press this button again to turn off the unit. Press this button to decrease set temperature. Hold it down for 2 seconds or more to rapidly decrease set temperature.

  • Page 9: Function Introduction For Combination Buttons

    Remote Control Instructions TIMER ON : Press this button to initiate the auto-ON timer. To cancel the auto-timer program, simply press this button again. After pressing this button, disappears and "ON "blinks . 00:00 is displayed for ON time setting. Within 5 seconds, press + or - button to adjust the time value. Every press of either button changes the time setting by 1 minute.

  • Page 10: Operation Guide

    Remote Control Instructions SLEEP: Press this button to go into the SLEEP operation mode. Press it again to cancel this function. This function is available in COOL or DRY mode to maintain the most comfortable temperature for you. LIGHT: Press LIGHT button to turn on the display's light and press this button again to turn off the display's light.

  • Page 11: Emergency Operation

    Emergency operation If remote controller is lost or damaged, please use auxiliary button to turn on or turn off the air conditioner. The operation in details are as below: As shown in the fig. press aux. button to turn on or turn o f the air conditioner.

  • Page 12: Clean Filter

    Clean and maintenance Clean filter Open panel Clean filter ● Use vacuum or water to Open panel to access filter. clean the filter. ● When the filter is very dirty, use warm water (below 113°F) to clean it, and then allow to dry. Remove filter Remove the filter as indicated in the fig.
  • Page 13 Clean and maintenance Pre-season check up 1. Check whether air inlets and air outlets are blocked. 2. Check whether circuit breaker is in good condition. 3. Check whether filter is clean 4. Check whether mounting bracket for outdoor unit is damaged or corroded. If yes, please contact dealer.

  • Page 14: Trouble Shooting

    Trouble Shooting Prior to calling for service please review troubleshooting section to eliminate any issues. Issue Check items Solution Check batteries ● ● Replace if needed. ● ● Ensure remote is within Receiving range for signal is operating distance. 26ft/8m. Indoor unit ●...
  • Page 15 Trouble Shooting Issue Check items Solution ● Has there been a power failure? ● Wait for power to be restored. Are there lights on the display? ● ● If no check circuit breaker. Call servicer or dealer for ● ● Circuit breaker tripping? licensed professional.

  • Page 16: Service And Assistance

    If you require further assistance please call Friedrich customer support at 1-800-541-6645. Before calling please make sure that you have the full model and serial number, as well as the date of purchase of you equipment available. Providing us with this...

  • Page 17: Troubleshooting

    Trouble Shooting Error Code ● When air conditioner status is abnormal, temperature indicator on indoor unit will blink to display corresponding error code. Please refer to below list for identification of error code. Error code Above indicator diagram is only for reference.

  • Page 18: Installation Dimension Diagram

    Installation dimension diagram Space to the wall At least 6 in At least 6 in Space to the wall Note *Min/Max Line Length 10'/82' Drainage pipe...

  • Page 19: Tools For Installation

    Tools for installation 1. Level 2. Screw driver 3. Impact drill 5. Pipe expander 4. Drill head 6. Torque wrench 7. Open-end wrench 8. Pipe cutter 9. Leakage detector 10. Vacuum pump 12. Multimeter 11. Manifold gauges 13. Allen/spanner wrenches 14.

  • Page 20: Requirements For Electric Connection

    Requirements for electric connection Safety precaution 1. Must follow national and regional safety regulations when installing the unit. 2. According to the local safety regulations, use qualified power supply circuit an circuit breaker. 3. Make sure the power supply matches with the requirement of air conditioner. Install proper power supply cables before using the air conditioner.

  • Page 21: Installation Of Indoor Unit

    Installation of indoor unit Step one: choosing installation location Step two: install wall bracket 1. Hang wall bracket, install center screw and apply level. 2. If required pre-drill in the locations you've chosen for mounting, install required mounting hardware and secure to wall. Step three: open piping hole 1.
  • Page 22 Installation of indoor unit Indoor outdoor Note: ● Wall penetration collar is field supplied, ensure hole is properly insulated once unit is installed. ˜55 5-10 Step four: outlet pipe 1. The pipe can be led out in the 2. When select leading out the pipe direction of right, rear right, left or from left or right, please cut off the rear left.
  • Page 23 Installation of indoor unit Hex nut diameter Tightening torque (N . m) open-end wrench Φ 6 15~20 Φ 9.52 30~40 flare nut Φ 12 40~55 pipe Φ 16 60~65 torque wrench Φ 19 70~75 indoor pipe 4. Wrap with insulation then wrap with tape.
  • Page 24 Installation of indoor unit 2. Make the power connection wire go cable-cross hole through the cable-cross hole at the back of indoor unit and then pull it out from the front side. power connection wire 3. Remove the wire clip; connect the power connection wire to the wiring terminal with wire clip.
  • Page 25 Installation of indoor unit Step eight: bind up pipe 1. Bind up the connection pipe, power drain hose connection pipe band cord and drain hose with the band. indoor and outdoor power cord indoor unit pipe indoor power cord liquid pipe 3.

  • Page 26: Installation Of Outdoor Unit

    Installation of outdoor unit Step one: securing of outdoor unit (select location based on actual application) 1. Select installation location to fit structure. Follow diagram and clearances. 2. Secure the outdoor unit on the selected location with expansion screws or required hardware.
  • Page 27 Installation of outdoor unit Step three: fix outdoor unit foot holes 1. Place the outdoor unit on the support. 2. Fix the foot holes of outdoor unit with bolts. foot holes Step four: connect indoor and outdoor pipes 1. Remove the screw on the right handle of outdoor unit screw and then remove the handle.
  • Page 28 Installation of outdoor unit Step five: connect outdoor electric wire 1. Remove the wire clip; connect the power connection wire and signal control wire (only for cooling and heating unit) to the wiring terminal according to the color; N(1) blue brown yellow- black...
  • Page 29 Installation of outdoor unit Step six: neaten the pipes 1. The pipes should be placed along the wall, bent reasonably and hidden if possible. Min. radius of bend to the pipe is 4 in. wall 2. If the outdoor unit is higher than the wall penetration, you must set a U-shaped curve in the pipe before pipe goes into the room, in order to prevent rain from getting...

  • Page 30: Leakage Detection

    Pressure testing Use Dry Nitrogen Remove the valve caps on the liquid valve and gas valve and the nut of refrigerant port Connect the charging hose of manifold to the refrigerant port, and the other to the nitrogen tank regulator. 3.

  • Page 31: Vacuum Pumping

    Vacuum pumping Use vacuum pump Remove the valve caps on the liquid valve and gas valve liquid valve Manifold gauge and the nut of refrigerant port gas valve Connect the charging hose of manifold to the refrigerant refrigerant charging valve cap port, and the other to the port vacuum pump.

  • Page 32: Check After Installation

    Check after installation ● Check according to the following requirement after finishing installation Items to be checked Possible malfunction The unit may drop, shake or emit noise. Ensure unit has been installed correctly. System will may not cool or heat properly. Has the system been leak tested? It may cause condensation and water Has drain been properly insulated?

  • Page 33: Pipe Expanding Method

    Pipe expanding method Note: Improper pipe expanding is the main cause of refrigerant leakage. Please expand the pipe according to the following steps: A: Cut the pipe E: Expand the port ● Confirm the pipe length according t ● Expand the port with expander. the distance of indoor unit and hard outdoor unit.
  • Page 34 Friedrich Air Conditioning Co. 10001 Reunion Place, Suite 500 • San Antonio, Texas 78216 1.800.541.6645 www.friedrich.com...

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