Mitsubishi Electronics PCFY-P36NKMU-E, PCFY-P15NKMU-E, PCFY-P30NKMU-E Test Point Diagram

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7-3. TEST POINT DIAGRAM

7-3-1. Indoor controller board

PCFY-P15NKMU-E PCFY-P24NKMU-E PCFY-P30NKMU-E PCFY-P36NKMU-E

CN60

Linear expansion valve (LEV) output

12VDC pulse output

CN4Y

i-See sensor

CN52

Remote indicator

CN51

Centrally controlled

CN44

Pipe temperature thermistor : Liquid (TH22)

: Gas (TH23)

CN4F

Drain float switch (FS)

CN20

Room temperature thermistor (TH21)

CN27

Damper signal output 12VDC( : +)

CN90 Connect to the wireless

remote controller board (W.B)

LED1

Main power supply (Indoor unit : 208-230V)

CNMF Connect to the fan motor (MF)

: DC294~325V

: DC15V

: DC0~6V

: DC0 or DC15V (Stop) DC7.5V (Operation) (12VDC pulse)

CNP

Drain pump output (DP)

: 208-230VAC

CN6Y

i-see sensor motor output 12VDC pulse output

CN3A

Connect to the terminal block (TB15) (MA-Remote controller connecting wire) - : 8.7-13V DC (Pin (+))

CNV

Vane motor output 12VDC pulse

CN32

Remote switch

Jumper wire J41, J42

Pair No.setting for wireless remote controller

LED2

Power supply for

MA-Remote controller

SW3

Function setting

SW4

Model selection

SWE

Test run(Drain pump)

SW2

Capacity setting

CN2M

Connect to the terminal block (TB5) (M-NET transmission connecting wire) 24-30VDC (non-polar)

CND

Power supply for indoor controller board

- : 208-230VAC

FUSE 6.3A 250V

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Contents Parts Catalog OCB450 ContentsPart Names and Functions Wired remote controller Specifications SpecificationSound Level Electrical Parts SpecificationsPCFY-P15NKMU-E PCFY-P24NKMU-E NC CurvesCmmcfm How to read curvesFront View Pcfy Gas pipe side/flared connection PCFY-P15, 24, 30, 36NKMU-E Wiring DiagramØ12.7 1/2 Ø15.88 5/8 Refrigerant System DiagramUnit mm inch Service Ref PCFY-P15NKMU-E PCFY-P24NKMU-E PCFY-P30NKMU-E PCFY-P36NKMU-EIndoor Unit Control 6-1. Cool Operation How to operateRoom temperature Desired temperature Microprocessor ControlFloat switch control Drain pump Same control as Cool operation Vane DRY OperationPressed one time. Dry 67 to 87F Control modes Control details Remarks Thermo regulatingFAN Operation Fan Control details Heat OperationPressed one time. Heating 63 to 83F Display in Heat operation DefrostFrom the preceding Control modes Control details Remarks Fan Thermo OFF modeAuto Operation Automatic COOL/HEAT Change Over Operation When Unit is StoppedDown TroubleshootingLinear expansion valve Valve Trouble shootingClosing a valve 1 → 2 → 3 → 4 → Become OFFSensor signal check Function of DIP Switch How to set branch number SW14 Series R2 only High ceiling On SWA settingHow to set address Switch Match the indoor unit’s refrigerant pipe with the BCPattern a Switch PoleOperation by switch Effective JumperPCFY-P15NKMU-E PCFY-P24NKMU-E PCFY-P30NKMU-E PCFY-P36NKMU-E Test Point DiagramSW1 PCFY-P30NKMU-E PCFY-P36NKMU-E Disassembly ProcedureOperating Procedure Photos & Illustrations PCFY-P15NKMU-E PCFY-P24NKUM-ERemoving the fan motor and right side fan Removing the room temperature thermistor TH21Side panel by sliding the panel to the front Removing the fan 3 connectionRemoving the side panel Remove the screw from the side panel, and removeRemoving the vane motor Removing the under panelRemoving the drain pan Removing the Auto vane Removing the pipe thermistors/Liquid TH22 and GasTH23 Removing the guide vaneRemoving the heat exchanger and LEV Remove 2 screws from the heat exchangerRemove the heat exchanger with LEV Page New publication, effective Feb

PCFY-P30NKMU-E, PCFY-P36NKMU-E, PCFY-P24NKMU-E, PCFY-P15NKMU-E specifications

Mitsubishi Electronics is renowned for its innovative solutions in the field of heating, ventilation, and air conditioning (HVAC) systems. Among its impressive lineup, the PCFY-P series of ceiling-mounted air conditioning units stands out for its advanced features, technologies, and efficient performance. The models PCFY-P15NKMU-E, PCFY-P24NKMU-E, PCFY-P36NKMU-E, and PCFY-P30NKMU-E cater to various cooling and heating needs, making them suitable for both residential and commercial applications.

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