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Models
Indoor Units MW09Y3H MW12Y3H
Outdoor Units
MR09Y3H MR12Y3H
Service and Parts Manual
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CUSTOMER SATISFACTION and QUALITY ASSURANCE Friedrich is a conscientious manufacturer, concerned about customer satisfaction, product quality, and controlling warranty costs. As an Authorized Service Provider you play a vital role in these areas. By adhering to the policies and procedures you provide us with vital information on each warranty repair you complete. This information is used to identify product failure trends, initiate corrective action, and improve product quality, thereby furt
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SPECIFICATIONS ELECTRICAL DATA NOISE LEVEL Cool & heat inverter High speed TYPE 43 dB 43 dB INDOOR INDOOR UNIT MW09Y3H MW12Y3H Middle speed 38 dB 38 dB UNIT OUTDOOR UNIT MR09Y3H MR12Y3H Low speed 33 dB 33 dB Cooling 8,500 BTU/h 11,500 BTU/h Quiet 22 dB 22 dB COOLING CAPACITY (2.50 kW) (3.40 kW) High speed 43 dB 43 dB 10,000 BTU/h 14,000BTU/h INDOOR HEATING CAPACITY Middle speed 38 dB 38 dB (2.93 kW) (4.11 kW) UNIT Low speed 33 dB 33 dB POWER SOURCE 208 / 230 V 208 / 230 V Heating Quiet 22 dB 22
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DIMENSIONS unit : inch (mm) INDOOR UNIT 31-3/32 (790) 7-25/32 (198) Refrigerant pipe length Liquid : 15-3/16 inch (386 mm) Gas : 12-15/16 inch (329 mm) Drain hose length : 23-5/8 inch (600 mm) Drain pipe diameter Inside : 5/8 inch (15.8 mm) Outside : 1-9/64 inch (29 mm) OUTDOOR UNIT 11-13/32 (290) 25-31/32 (660) 18 (454) 3 11-1/32 (280) 21-1/4 (540)
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REFRIGERANT SYSTEM DIAGRAM Heat exchanger (indoor unit) 2-Way valve 3-Way valve Compressor Muffler Strainer 4-Way valve Expansion valve Heat exchanger (outdoor unit) Strainer Refrigerant direction Cooling flow Heating flow Refrigerant pipe diameter Liquid : 1/4" (6.35 mm) Gas : 3/8" (9.52 mm) 4
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5 MR09Y3H CIRCUIT DIAGRAM RED S WHITE COMPRESSOR C M INDOOR UNIT OUTDOOR UNIT R C BLACK 1 2 3 4 5 6 7 8 CONTROLLER PCB ASSY CN201 CN8 RED RED 1 1 1 1 1 MR12Y3H REACTOR REACTOR WHITE ORANGE 2 2 2 2 2 WHITE YELLOW STEP MOTOR RED CN5 3 3 3 3 3 M R(R)U WHITE PINK INDICATOR ( LOUVER ) CN3 4 4 4 4 4 or W7 WHITE BLUE WHITE PCB ASSY 5 5 5 5 5 C M W8 COMPRESSOR WHITE WHITE WHITE 6 6 6 S(S)V W10 W9 CONTROLLER WHITE RED RED C(T)W 7 7 7 BLACK W11 PCB ASSY BLACK ( MAIN PCB ) 1 1 BLACK 2 2 PIPE THERMISTOR CN4
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INDOOR PCB CIRCUIT DIAGRAM EARTH TERMINAL 3 CONTROL UNIT THERMAL TO OUTDOOR UNIT N FUSE 102 MW09Y3H : EZ-00906HSE L MW12Y3H : EZ-00907HSE TERMINAL BOARD W4 2 1 1 2 3 4 5 CN2 CN1 1871843-2 2013485-1 1 BLACK THERMISTOR ( PIPE TEMP. ) 2 BLACK CN4 BLACK 1971032-4 3 THERMISTOR ( ROOM TEMP. ) 4 BLACK RED 1 ORANGE 2 CN5 STEP MOTOR 3 YELLOW M 1971032-5 PINK 4 ( LOUVER ) BLUE 5 CONTROLLER PCB ASSEMBLY MW09Y3H : K07AN-0907HSE-C1 MW12Y3H : K07AN-0908HSE-C1 FAN MOTOR RED 1 1 2 WHITE 2 3 WHITE 3 INDICATOR PC
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7 INDOOR UNIT CONTROLLER PCB ASSEMBLY ( MAIN PCB ) MW09Y3H : K07AN-0907HSE-C1 MW12Y3H : K07AN-0908HSE-C1 F1 FIH 250V 3.15A (EM) L5 CN1 340V L1 20*20*18 2013485-1 FH1 FH2 0.6A - 10mH TP00351-31 x 2 SS11V-06180 BLACK 1 D5 1 2 S1NBC60 WHITE 3 C3 TO TERMINAL BOARD C5 R3 FAN 5 0.01 2 1 FAN RED C1 T1 + 15V VA1 100k 0.01 ( Vsp ) D3 ( Vcc ) 0.1 MY082N 3 4 <1/2W> 470V C2 D1FL20U - 15V-3 15V 15V-2 10 0.01 R2 JM1 R57 2 9 100 C10 5V 4 C9 L2 0R0 0R0 3 + <1/4W> 220/ 3 8 330/ BLm18 C
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INDOOR UNIT INDICATOR PCB ASSEMBLY K07BJ-0700HSD-D0 5V 5V CN201 07 JB20 / GIC 1061 L=230 1 D201 SLR-343MC 2 D202 SLR-343DC 3 D203 SLR-343YC 4 5 SW201 6 MANUAL AUTO SWITCH KSHG0611BT 7 A R202 I C201 47 5V A GP1UM261RKVF <1/4W> VCC 2 OUT 1 C203 C202 + GND 3 47/ 0.1 10V A A 8
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9 OUTDOOR PCB CIRCUIT DIAGRAM INVERTER ASSEMBLY MR09Y3H : EZ-009LHUE MR12Y3H : EZ-009MHUE REACTOR W103 TO INDOOR UNIT F202 UL1015 U L AWG20 5A - 250V UL1015 AWG14 RED 1 BLACK BLACK B W7 W1 B V W100 WHITE W102 W8 COMPRESSOR N UL1015 AWG14 B C. M. UL1015 2 UL1015 WHITE AWG20 W2 B W WHITE AWG20 BLACK BLACK B W9 SERIAL UL1015 AWG20 UL3271 AWG16 x 3 3 RED W4 B W101 F201 UL1015 20A - 250V AWG14 UL1015 AWG16 POWER SOURCE 4 BLACK GREEN W3 B AC208 - 240V 50 / 60Hz 5 CN501 EMI FILTER 1 BLACK MR09Y3H : 174
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10 15V DCV U V W W7 W8 W9 POWER SOURCE REACTOR D102 AC230 - 208V UF4007 L300 47uH F4 60Hz MR09Y3H : C4, C5 0.015 x 2 D100 R103 L MR12Y3H : C4, C5 0.010 x 2 W10 W11 D15XB60 100 C100, C101 C202 C200 W1 2 1 <1/2W> 660/ + + 47/ 47/ BLACK + 2 1 VA1 R401 - R408 450V 35V 35V C4 3 4 2 470V - x 2 0.2 <0.75W> 1% x 8 C1 1 C205 C203 DCV-F + + + C6 3 1.0 Q100 + 0.1 0.1 D101 2.2 VA2 R102 RJP6006 I C200 D15XB60 470V FSBF10CH60BT C5 R1 47k W5 W6 2 1 POW-GND
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ERROR DETECTION Indoor unit LED Wired Error remote Error Operation Coil dry Timer LED control LED LED 2 flash off 01 Serial signal (reverse) error, at operation start up off 3 flash 01 Serial signal (reverse) error, during oeration Serial signal error Off 4 flash off 13 Serial signal (forward) error, at operation start up off 5 flash 13 Serial signal (forward) error, during operation 8 flash off 00 Wired remote control error 2 flash off 02 Indoor air thermistor error Indoor unit 2 flash thermist
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PARTS INDOOR UNIT Front panel assy 1 5 4 5 2 4 3 7 Ref. Description Part number 1 Front Panel Assy 67202083 67202067 3 Intake Grille Assy 4 Clamper (Grille) 67202003 5 Air Filter 67202066 7 Panel Cover 67202215 8 Remote Control 67202007 8 9 Remote Control Holder 67201533 -- Wire Cover 67202076 9 -- Wire Shield 67202077 12
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16 INDOOR UNIT Evaporator 14 13 11 15 12 17 Ref. Description Part number 11 Evaporator Total Assy 67202082 12 Joint Pipe Assy 67202084 13 Filter Guide 67202072 67202071 14 Rear Bracket 67202070 15 Evaporator Holder R 16 Evaporator Holder L 67202069 17 Room Thermistor Holder 67202018 13
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42 INDOOR UNIT Casing assy 39 37 38 36 35 23 24 33 34 28 32 31 41 29 30 27 21 40 Ref. Description Part number Ref. Description Part number 21 Casing Assy 67202080 32 Louver Gear 67202068 23 Drain Hose Assy 33 Gear A 67201206 67202030 24 Drain Cap 34 Motor Step 67202097 67202031 27 Fan Guard 67202098 35 Motor Cover (1) 67202062 28 R and L Louver B 36 Motor Cover (2) 67202022 67202063 29 Cable Guide 67202023 37 Fan Motor 67202033 30 Conduit Holder 67202038 38 Crossflow Fan Assy 67202034 31 Louver
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51 INDOOR UNIT Control box 57 58 54 59 56 53 52 Ref. Description Part number 51 Box Shield Assy 67202065 67202075 52 Control Cover 53 Cover Shield Assy 67202090 54 Controller PCB Assy (09) 67202094 54 Controller PCB Assy (12) 67202095 56 Display PCB Assy 67202045 57 Control Box 67202091 58 Terminal 67202048 59 Earth Terminal 67202061 -- Thermistor Assy 67202019 15
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4 5 1 3 15 14 9 6 2 8 7 1 12 Ref. Description Part number 1 Front Panel Assy 67202179 2 Emblem 67202192 3 Cabinet Left Assy 67202180 4 Top Panel Assy 67202182 11 5 Protective Net 67202103 67201371 6 Switch Cover 7 Cabinet Right Assy 67202183 8 Valve Bracket 67202105 9 Valve Bracket Cover 67202106 10 Propeller Fan 67201413 13 11 Motor Bracket 67202107 10 12 REM Plate Assy (09) 67202108 12 REM Plate Assy (12) 67202109 13 Fan Motor (09) 67202184 13 Fan Motor (12) 67202111 PARTS 14 Reactor Assy 6720
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22 30 29 OUTDOOR UNIT MR09Y3H 28 24 27 25 26 21 Ref. Description Part number 21 Base Assy 67202163 22 Condenser Total Assy 67202141 24 Compressor Assy 67202119 25 2 way Valve Assy 67202127 26 3 way Valve Assy 67202129 27 Muffler 67202130 67202131 28 4 way Valve 29 Pulse Motor Valve Assy 67202139 67201422 30 Expansion Valve Coil -- Solenoid 67202140 17
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30 OUTDOOR UNIT 29 MR12Y3H 22 28 24 27 25 26 21 Ref. Description Part number 21 Base Assy 67202164 22 Condenser Total Assy 67202145 24 Compressor Assy 67202125 25 2 way Valve Assy 67202127 26 3 way Valve Assy 67202129 27 Muffler 67202133 28 4 way Valve 67202134 29 Pulse Motor Valve Assy 67202139 30 Expansion Valve Coil 67201422 -- Solenoid 67202144 18
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31 OUTDOOR UNIT MR09Y3H MR12Y3H 32 33 34 37 38 36 Ref. Description Part number 67202151 31 Sealed Panel 32 Controller PCB Assy (09) 67202186 32 Controller PCB Assy (12) 67202187 39 33 PCB Holder 67202154 34 Inverter Case Assy 67202155 36 Terminal Bracket 67202157 37 Terminal 5P 67201450 38 Terminal Cover Assy 67202158 39 Bracket Conduit 67202160 -- Outdoor Thermistor 67202161 -- Thermistor Assy 67202162 19
