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Friedrich MW18C3F Service Manual

Split type wall mounted
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See also: Operating Manual , Installation Manual
SPLIT TYPE
ROOM AIR CONDITIONER
WALL MOUNTED
Models
Indoor unit
Outdoor unit
MW18C3F MR18C3F
CONTENTS
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . .1
OUTLINE AND DIMENSIONS. . . . . . . . . . . . 2
CIRCUIT DIAGRAM . . . . . . . . . . . . . . . . . . . . 4
ERROR CONTENTS . . . . . . . . . . . . . . . . . .
DISASSEMBLY ILLUSTRATION . . . . . . . . . 11
PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . 14
STANDARD ACCESSORIES . . . . . . . . . . . . 16
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Summary of Contents for Friedrich MW18C3F

  • Page 1: Table Of Contents

    Models Indoor unit Outdoor unit MW18C3F MR18C3F CONTENTS SPECIFICATIONS ..... .1 OUTLINE AND DIMENSIONS... . 2 REFRIGERANT SYSTEM DIAGRAM .

  • Page 2: Specifications

    SPECIFICATIONS TYPE COOLING ONLY INVERTER INDOOR UNIT MW18C3F OUTDOOR UNIT MR18C3F COOLING CAPACITY 18,000 Btu/h (5.28 kW) ELECTRICAL DATA POWER SOURCE 208 - 230 V FREQUENCY 60 Hz RUNNING CURRENT 7.7 A INPUT WATTS 1.73 kW E.E.R. 3.05 kW /kW MOISTURE REMOVAL 5.9 Pt/h (2.8 L/hr)

  • Page 3: Outline And Dimensions

    DIMENSIONS Models : MW18C3F / MR18C3F unit : inch (mm) 8-7/16 31-1/8 (790) (215) 20 (508) 13/16 (20) 21-1/4 (540) 4-15/16 (125) 2-5/8 11-13/16 31-1/8 (790) (66) (300) 2006.03.06...

  • Page 4: Refrigerant System Diagram

    REFRIGERANT SYSTEM DIAGRAM Model : MW18C3F / MR18C3F Heat exchanger ( INDOOR ) 3-Way valve 2-Way valve Muffler Sub-heat exchanger ( INDOOR ) Strainer Expansion valve 4-Way valve Heat exchanger Strainer ( OUTDOOR ) Cooling Refrigerant pipe diameter Liquid : 1/4" (6.35 mm) Gas : 1/2"...

  • Page 5: Circuit Diagram

    CIRCUIT DIAGRAM Model : CN201 MW18C3F / MR18C3F WHITE WHITE WHITE WHITE WHITE INDOOR UNIT WHITE ORANGE YELLOW STEP MOTOR PINK BLUE BLUE YELLOW BLACK WHITE BLACK BLACK PIPE TEMPERATURE THERMISTOR FAN MOTOR BLACK BLACK ROOM TEMPERATURE POWER CIRCUIT THERMISTOR...

  • Page 6: Indoor Pcb Circuit Diagram

    INDOOR PCB CIRCUIT DIAGRAM Model : MW18C3F CONTROL UNIT EZ-005EWSE TERMINAL BOARD SERIAL OUTDOOR UNIT EARTH EARTH TERMINAL BLACK WHITE B3B-XASK CN11 B2B-XH TERMINAL FUSE EX-OUT CN12 EXTERNAL COMMUNICATION CONNECTOR B3B-XH EX-I N CN10 B5B-XASK CN10-1 CN10-2 WHITE REMOTE CONTROL UNIT...
  • Page 7 Model : MW18C3F CONTROLLER PCB ASSEMBLY K04CP-0504WSE-C1 R29 10K <1/10W> B3B-XASK 13.5V BD4842 R44 1K NJM7805 R39 10K R28 10K <1/10W> D1F60 <1/10W> TERMINAL BOARD <1/10W> R42 49.9K VOUT <1/10W> <F> 330/ (1%) <F> 330/ HEAT EXCHANGER WHITE BLACK <F>...
  • Page 8 Model : MW18C3F D206 SLR-325 CN201 D204 SLR-325 D203 SLR-325 C201 D201 SLR-325 <F> R201 <1/4W> I C201 GP1UM261R C202 2006.02.28...

  • Page 9: Outdoor Pcb Circuit Diagram

    OUTDOOR PCB CIRCUIT DIAGRAM Model : MR18C3F INVERTER ASSEMBLY EZ-005SHUE EMI FILTER REACTOR UL3271 AWG16 UL1015 AWG14 BLACK UL3271 AWG16 ( A-1 ) WHITE WHITE C. M. UL1015 AWG14 UL3271 AWG16 WHITE ( B-1 ) BLACK BLACK COMPRESSOR UL1015 AWG20 ( D-1 ) BLACK CN30...
  • Page 10 Model : MR18C3F CONTROLLER PCB ASSY K05CM-0507HUE-C1 F100 C100-C102 660/450V x 3 15A-250V DC V U V W AC208 - 230V R200 39 L300 REACTOR <1/2W> D102 ELC0607RA 60Hz BET 3.15A-250V 1NH42 W7 W8 W9 U1JU44 x 3 LL25XB60 x 2 PFC5000 R103 -0702F...

  • Page 11: Error Contents

    ERROR CONTENTS Model : MW18C3F Display Error Operation Error Timer LED 2 flash Serial signal (reverse) error, at operation start up 3 flash Serial signal (reverse) error, during oeration Serial signal error Normal 4 flash Serial signal (forward) error, at operation start up...

  • Page 12: Disassembly Illustration

    DISASSEMBLY ILLUSTRATION Model : MW18C3F 2006.03.06...
  • Page 13 Model : MW18C3F 2006.03.06...
  • Page 14 Model : MR18C3F 2006.02.28...

  • Page 15: Parts List

    PARTS LIST INDOOR UNIT Part No. Ref. Ord. Description Q'ty MW18C3F Air Filter 9309997011 Filter (Electric + ION) 9312152018 Holder (Filter) 9306602017 Clamper (Grille) 9306755010 Front Panel 9309999053 Intake Grille Assy 9313566036 Gear-A 9309994003 Casing Assy 9311354079 Crossflow Fan Assy...
  • Page 16 OUTDOOR UNIT Part No. Ref. Ord. Description Q'ty MR18C3F Top Panel Assy 9309230057 Top Panel Seal 9309228016 Cabinet Sub Assy 9314809040 Blow Down Grille 9308884015 Cabinet Right Assy 9309236011 Fan Ring 9308885012 Grip 9308880017 Switch Cover Assy 9309237049 4-Way Valve 9970056017 Expansion Valve Assy 9311641018...

  • Page 17: Standard Accessories

    STANDARD ACCESSORIES Part No. Name and Shape MW18C3F Wall hook bracket 9310001004 Remote control unit 9315027061 Remote control unit holder 9305642045 Battery (penlight) 0600185534 Cloth tape 9310519004 Tapping screw (big) 4 x 25) 0700076046 Tapping screw (small) 3 x 12)
  • Page 18 0511G2949...

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