Friedrich MR18Y3F Service Manual
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Friedrich MR18Y3F Service Manual

Friedrich MR18Y3F Service Manual

Wall mounted type
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Table of Contents

See also: Operating Manual , Installation Manual
SPLIT TYPE
ROOM AIR CONDITIONER
WALL MOUNTED
Models
Indoor unit
Outdoor unit
MW18Y3F MR18Y3F
CONTENTS
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . 1
OUTLINE AND DIMENSIONS . . . . . . . . . . . 2
CIRCUIT DIAGRAM . . . . . . . . . . . . . . . . . . . 4
ERROR CONTENTS . . . . . . . . . . . . . . . . . .
DISASSEMBLY ILLUSTRATION . . . . . . . . 12
PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . 15
STANDARD ACCESSORIES . . . . . . . . . . . 17
type
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Summary of Contents for Friedrich MR18Y3F

  • Page 1: Table Of Contents

    Models Indoor unit Outdoor unit MW18Y3F MR18Y3F CONTENTS SPECIFICATIONS ..... 1 OUTLINE AND DIMENSIONS ... 2 REFRIGERANT SYSTEM DIAGRAM .

  • Page 2: Specifications

    OUTDOOR UNIT NOISE LEVEL INDOOR UNIT OUTDOOR UNIT REFRIGERANT (R410A) FULL CHARGE AMOUNT ADDITIONAL REFRIGERANT 2006.02.20 COOL & HEAT INVERTER MW18Y3F MR18Y3F 5.28 kW 6.30 kW 208 - 230 V 60 Hz COOLING 7.7 A 8.6 A HEATING COOLING 1.73 kW HEATING 1.93 kW...

  • Page 3: Outline And Dimensions

    DIMENSIONS Model : MW18Y3F / MR18Y3F (unit : mm) 2006.02.20...

  • Page 4: Refrigerant System Diagram

    REFRIGERANT SYSTEM DIAGRAM Model : MW18Y3F / MR18Y3F Muffler Cooling Heating Refrigerant pipe diameter Liquid : 1/4" (6.35 mm) Gas : 1/2" (12.7 mm) 2006.02.20 Heat exchanger 3-Way ( INDOOR ) valve 4-Way valve Heat exchanger ( OUTDOOR ) 2-Way...

  • Page 5: Circuit Diagram

    CIRCUIT DIAGRAM Model : MW18Y3F / MR18Y3F INDOOR UNIT OUTDOOR UNIT REACTOR PIPE TEMP. THERMISTOR DISCHARGE PIPE TEMP. THERMISTOR OUTDOOR TEMP. THERMISTOR WHITE FUSE 5A-250V TERMINAL TO INDOOR UNIT POWER SUPPLY 2006.02.20 CN201 WHITE WHITE WHITE WHITE WHITE WHITE BLUE...

  • Page 6: Indoor Pcb Circuit Diagram

    INDOOR PCB CIRCUIT DIAGRAM Model : MW18Y3F OUTDOOR UNIT TERMINAL FUSE CN10-1 CN10-2 WHITE REMOTE CONTROL UNIT CN10-3 BLACK CN3-1 CN3-2 CN3-3 TEST CN3-4 CN3-5 CN4-6 CN4-4 BLACK F. M. FAN MOTOR CN4-3 WHITE CN4-2 YELLOW CN4-1 BLUE 2006.02.20 CONTROL UNIT EZ-0051FHSE TERMINAL BOARD SERIAL...
  • Page 7 Model : MW18Y3F TERMINAL BOARD HEAT EXCHANGER WHITE BLACK GREEN THERMISTOR 3.15A - 250V VA1 270V <TNR> ROOM TEMPERATURE THERMISTOR 160V R4 100K C7 0.01 <RS - 2W> <ECQE> 0.22 <LE> 1NH42 R2 2.2 <RGG-5W> EN / UV 100/ 420V <F>...
  • Page 8 Model : MW18Y3F D206 SLR-325 D204 SLR-325 D203 SLR-325 D201 SLR-325 I C201 GP1UM261R 2006.02.20 INDICATOR PCB ASSY K03DV-0400WSE-D0 C201 <F> R201 <1/4W> C202 CN201...

  • Page 9: Outdoor Pcb Circuit Diagram

    OUTDOOR PCB CIRCUIT DIAGRAM Model : MR18Y3F UL1015 AWG20 W100 WHITE UL1015 AWG20 INDOOR W103 BLACK UNIT F202 SERIAL 5A-250V UL1015 AWG20 W102 BLACK UL1015 AWG14 W101 BLACK AC208-230V F201 60Hz 20A-250V TERMINAL DISCHARGE TEMPERATURE THERMISTOR PIPE TEMPERATURE THERMISTOR OUTDOOR TEMPERATURE THERMISTOR 2006.02.20...
  • Page 10 Model : MR18Y3F AC208 - 230V 60Hz 3.3/275V 0.01/250V BLACK VA1 470V <TNR> 0.1/ 275V VA2 470V <TNR> WHITE RCH4716-070PF07 0.01/250V RA-302M EARTH GREEN HY I C1 HU2001 or GK30434 SERIAL SO / I C80-2 JM32 CN30 B2P3-VH-B-C CR30 V4-AC / I C80-3...

  • Page 11: Error Contents

    Model : MW18Y3F / MR18Y3F Self-diagnosis function table (Flashing LED Display) * Detailed Trouble Display (secondary level) can be indicated by pressing Test Operation button. Trouble Display (primary) Error Operation Timer Serial signal Normal 1 sec error blinking Indoor unit 0.5sec...
  • Page 12 Trouble Display (primary) Error Operation Timer Outdoor unit 0.5sec 1 sec control error 5 times blinking Indoor fan 0.5sec 0.1sec motor error 6 times blinking Refrigerant 0.5sec 0.1sec cycle error 7 times blinking Optional 0.5sec 0.1sec function 8 times blinking error 2006.02.20 Detailed Trouble Display (by Test Button)

  • Page 13: Disassembly Illustration

    DISASSEMBLY ILLUSTRATION Model : MW18Y3F 2006.02.20...
  • Page 14 Model : MW18Y3F 2006.02.20...
  • Page 15 Model : MR18Y3F 2006.02.20...

  • Page 16: Parts List

    PARTS LIST INDOOR UNIT Ref. 61-1 Flow Control Panel-U 61-2 Flow Control Panel-Z 2006.02.20 Description Air Filter Filter (Electric + ION) Holder (Filter) Clamper (Grille) Front Panel Intake Grille Assy Gear-A Casing Assy Crossflow Fan Assy Clamp (Motor) Shaft Holder-C Assy Drain Hose Assy Drain Cap Assy Wire Clamper...
  • Page 17 Thermistor Thermistor Assy 2006.02.20 Description When you order parts, please make a photocopy of this page and fill the number of the parts in the "Order" column. Part No. Ord. Q'ty MR18Y3F 9309230057 9309228016 9314809040 9308884015 9309236011 9308885012 9308880017 9309237049...

  • Page 18: Standard Accessories

    STANDARD ACCESSORIES 2006.02.20 Name and Shape MW18Y3F Wall hook bracket 9312752010 Remote control unit 9314990038 Remote control unit holder 9305642014 Battery (penlight) 0600185534 Cloth tape 9310519004 Tapping screw (big) 4 x 25) 0700076046 Tapping screw (small) 3 x 12) 0700019036 Air cleaning filter 9312153015 9311925033...
  • Page 19 0511G2952...

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