Manuals / Mitsubishi Electronics / Household Appliance / Air Conditioner

Mitsubishi Electronics PUZ-A42NHA2-BS, PUZ-A30NHA2, PUY-A36NHA2 Indoor Outdoor Connecting Cable

Models: PUZ-A36NHA2-BS PUY-A12NHA2 PUY-A42NHA2-BS PUY-A30NHA2 PUZ-A36NHA2 PUY-A36NHA2-BS PUZ-A18NHA2 PUZ-A18NHA2-BS PUY-A30NHA2-BS PUZ-A30NHA2-BS PUY-A18NHA2 PUY-A36NHA2 PUZ-A30NHA2 PUY-A12NHA2-BS PUZ-A24NHA2-BS PUZ-A42NHA2 PUY-A18NHA2-BS PUY-A42NHA2 PUZ-A42NHA2-BS PUY-A24NHA2-BS PUZ-A24NHA2 PUY-A24NHA2

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8-3. INDOOR - OUTDOOR CONNECTING CABLE

Outdoor power supply		Wire No. o Size

	Max. 45m, 147ft	Max. 50m, 164ft	Max. 80m, 262ft
	Max. 45m, 147ft	Max. 50m, 164ft	Max. 80m, 262ft

Indoor unit-Outdoor unit	3 o AWG15(polar)	3 o AWG13(polar)	3 o AWG13(polar) and S3 separated

wThe max. cable length may vary depending on the condition of installation, humidity or materials, etc.

	Indoor/Outdoor separate	Wire No. o Size
	power supply
	power supply	Max. 120m, 393ft
		Max. 120m, 393ft

	Indoor unit-Outdoor unit	2 o Min. AWG22

wThe optional indoor power supply terminal kit is necessary.

Be sure to connect the indoor-outdoor connecting cables directly to the units (no intermediate connections). Intermediate connections can lead to communication errors if water enters the cables and causes insufficient insulation to ground or a poor electrical contact at the intermediate connection point.

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Mitsubishi Electronics PUZ-A42NHA2-BS, PUZ-A30NHA2, PUY-A36NHA2, PUZ-A18NHA2-BS, PUZ-A36NHA2 Indoor Outdoor Connecting Cable

PUZ-A36NHA2-BS, PUY-A12NHA2, PUY-A42NHA2-BS, PUY-A30NHA2, PUZ-A36NHA2 specifications

Mitsubishi Electronics has long been a leader in the HVAC industry, and their range of air conditioning units, including the PUY-A24NHA2, PUZ-A24NHA2, PUY-A24NHA2-BS, PUZ-A42NHA2-BS, and PUY-A42NHA2, exemplifies their commitment to innovation and energy efficiency. These models are designed to provide optimal climate control for both residential and commercial applications, ensuring comfort throughout the year.

One of the defining features of these models is their advanced inverter technology, which allows for precise temperature control and reduced energy consumption. The inverter technology adjusts the compressor speed according to the cooling load, significantly lowering operating costs compared to traditional fixed-speed systems. This means that users can enjoy consistent comfort without worrying about surging energy bills.

The PUY and PUZ units come equipped with powerful indoor and outdoor components that enable efficient heat exchange. These systems provide excellent performance even in extreme weather conditions, with reliable operation at low ambient temperatures. This capability ensures that you can maintain a comfortable environment, no matter the season.

Additionally, the models are designed with quiet operation in mind. The outdoor units incorporate noise-reduction technology, ensuring that the systems operate at minimal sound levels. This is especially beneficial for residential areas or office environments, where maintaining a peaceful atmosphere is crucial.

Mitsubishi Electronics has also integrated smart technology into these units. With options for remote control via Wi-Fi, users can manage their air conditioning settings from anywhere, using their smartphones or tablets. This integration enhances user convenience and allows for more efficient scheduling and energy management.

These models are also known for their environmentally friendly refrigerants, such as R410A, which contribute to lower global warming potential and align with modern sustainability practices. By choosing Mitsubishi's PUY and PUZ series, consumers not only prioritize their comfort but also contribute to environmental conservation.

In summary, the Mitsubishi Electronics PUY-A24NHA2, PUZ-A24NHA2, PUY-A24NHA2-BS, PUZ-A42NHA2-BS, and PUY-A42NHA2 air conditioning units are equipped with cutting-edge technology, offering energy efficiency, quiet operation, and smart functionality. Whether for residential or commercial use, these units are designed to meet the demands of modern climate control while prioritizing energy savings and sustainability.

Contents

Contents Parts Catalog OCB429 Reference Manual Indoor Unit Safety Precaution Always Observe for Safety When charging directly from cylinder Additional refrigerant charge R22 PUZ-A18NHA2 PUZ-A18NHA2-BS PUY-A12/18NHA2 PUY-A12/18NHA2-BS FeaturesPUZ-A42NHA2 PUZ-A42NHA2-BS PUY-A42NHA2 PUY-A42NHA2-BS Specifications PUZ-A18NHA2 PUZ-A24NHA2 PUZ-A30NHA2 PUZ-A36NHA2 PUZ-A42NHA2 PUY-A18NHA2-BS PUY-A24NHA2-BS Compressor Technical Data Data Noise Criterion Curves PUZ-A18NHA2-BS Standard Operation Data Heat pump Cooling only PKA-A12GA PKA-A18GA PKA-A24FA PKA-A30FA PKA-A36FA PLA-A42BA Outdoor Unit Unit mminch Example of Notes Service Space 662-5/8 Air outlet Wiring Diagram NET Adapter PUZ-A24NHA2 PUZ-A24NHA2-BS PUY-A24NHA2 PUY-A24NHA2-BS NET Adapter WUse copper supply wires TABU/V/W Wiring Specifications System Simultaneous twin system Separate Indoor UNIT/OUTDOOR Unit Power Supplies OFF Indoor Outdoor Connecting Cable NET Wiring Method Refrigerant address NET address Control Remote Controller Regulations in address settings NET address settingRefrigerant address setting NET wiring PUZ-A42NHA2 PUZ-A42NHA2-BS Refrigerant System DiagramPUZ-A18NHA2 PUZ-A18NHA2-BS Way valve solenoid coil Heating on Cooling OFF PUY-A12/18NHA2 PUY-A12/18NHA2-BS PUY-A42NHA2 PUY-A42NHA2-BS Refrigerant recovering pump down Start and finish of test run Check Point Under Test RUN TroubleshootingTroubleshooting Before test run Symptoms in test run mode Cause Remote Controller Display Operating proceduresContents of inferior phenomena Test run for wireless remote controller When a Problem Occurs During Operation HOW to Proceed SELF-DIAGNOSISSelf-Diagnosis During Maintenance or Service Remote Controller Diagnosis ON/OFF Procedure Malfunction-diagnosis method by wireless remote controllerMalfunction-diagnosis method at maintenance service Case of trouble during operation U9,UH SELF-DIAGNOSIS Action Table Error Code Abnormal point and detection method Case63L connector open Cndc Connector open Error CodeCase Judgment and action 63H connector open Indoor/outdoor unit connector Abnormalities detected while unit is operating Case Judgment and action High pressure High-pressure switchHigh discharging temperature 63H worked Power module Temperature thermistor TH4Temperature of heatsink Case Judgment and action Open/short circuit of discharge Current sensor error Synchronous signal to main circuitWhen compressor locked Case Judgment and action Outdoor fan motor Remote controller control board Remote controller transmissionErrorE0/signal receiving errorE4 Case Judgment and action Low pressure 63L worked Error Signal receiving error Case Judgment and action Remote controller transmissionErrorE3/signal receiving errorE5 Non defined error code Hardware error of transmission NET communication errorCase Judgment and action Pipe temperature Case Judgment and action Address duplicate definition To the next Master From the previousFresh Master Lossnay VCTF, VCTFK, CVV CVS, VVR, VVF, VCT Troubleshooting by Inferior PhenomenaPhenomena Factor Countermeasure Melans Please Wait YES Outdoor connecting wire Outdoor power circuit boardPower supply To the outdoor unit Check the breaker Miswiring, breaking Not lighting Indoor/outdoor connecting wire BlinkingDefective indoor Replace the indoor Power board Breaking or poor Fix the breaking or poor Check if there is breaking Before repair Frequent calling from customers Action Table Refrigerant in the air conditioner is switched Phone Calls From Customers How to RespondSometimes This is the sound which is heard when the flow This is not a malfunction With Airflow Direction… With Blower…There might be a case that Page HOW to Check the Parts Fuse check Wiring contact checkPower supply check Remove the connector CNF1 END Medium temperature thermistor HOW to Check the ComponentsThermistor feature chart Low temperature thermistors High temperature thermistor Operation summary of the linear expansion valve Output pulse signal and the valve operationLinear expansion valve operation Linear expansion valve A24, 30, 36 How to detach the coil How to attach the coil Be sure to attach the stopper Releasing emergency operation Emergency operation procedureEmergency Operation SW4 Operation data during emergency operation Test Point Diagram CN5 LI, NICNAC1, CNAC2 LO, no PUZ-A24NHA2 PUZ-A24NHA2-BS PUY-A24NHA2 PUY-A24NHA2-BS RS1 DIP-IPM LD1-LD2DIP-PFC CN3 CN4 CN5 TABP2/SC-P2 CnafCN3 Actm Lower side Upper sideL1, L2 Function Action by the switch operation Effective timing Function of SWITCHES, Connectors and JumpersFunction of switches OFF 2Function of connector SW9 50% Special function75% Display function of inspection for outdoor unit Blinking Abnormality of outdoor fan Motor rotational speed 1Check the outdoor fan motor 1Check if stop valves are open Operation indicator Digital indicator LED1 working details Example When 2450 hours 245 10 hours Example When 42500 times 425 100 times Secs 5secs~9999 When it is 100 hours or more, hundreds digit, tens Lighting Cancellation of postponement SW2 setting Display detail Explanation for display Unit Unit Outdoor unit setting informationSingle phase 2 3 phase Cooling only DegF Fan step on error occurring ~10 Step Example When 130 pulse Example When 415 minutes Minute Secs Discharge superheat on error occurring ~327 0~182degC SHdSecs Sub cool on error occurring. SC ~234 0~130degC U9 Error status during the Error Rise of discharge temperature LED Switching to maintenance mode Easy Maintenance FunctionMaintenance Mode Operation Method Fixed Hz operation Data measurement To check the data for each item, repeat steps 5 to Guide for Operation Condition Data of the sensor Ta=C On main remote Controller Function SettingUnit Function Setting by the Remote Controller Average data Initial Ta=A+B/2 Sensor on all Setting No Settings Mode No.11PLA-BA PCA-GA Specified indoor unit Selecting functions using the wired remote controllerFor modes 15 and higher Press E FAN operation Operating Procedure Flow of function selection procedure Operating instructions Function Selection of Remote Controller Mode Selection Function selection flowchart Mode Vane FAN Turn on the Monitoring the operation data Button for 3 seconds to switch to Maintenance monitorCheck button for 3 seconds to return to maintenance mode Press Request Code List Outdoor unit-Control state Code Description 100 For indoor fan pulsation control Detail Contents in Request Code 101 Fan control state Request code Error content U9 Request code102 Actuator output state Request code 103 Outdoor unit --Capacity setting display Request codeOutdoor unit Setting information Request code Contact demand capacity Request code 104 105 Indoor unit Model setting information Request codeIndoor unit Capacity setting information Request code Data display See the table on the right 106 Disassembly ProcedurePUZ-A18NHA2 PUZ-A18NHA2-BS Operating Procedure Photos Photo Removing the electrical parts box Removing the thermistor Outdoor 2-phase pipe TH6107 Thermistor Outdoor pipe TH3 Operating Procedure Photos 108 Removing the 4-way valve 109Removing linear expansion valve Removing the compressor MC Separator Recover refrigerant110 Removing the accumulator 111 Operating Procedure Photos & IllustrationRemoving the service panel and top panel Removing the fan motor MF1 Removing the thermistor Outdoor pipe TH3 112Thermistor Discharge TH4 Removing the linear expansion valve coil 113Removing the 4-way valve coil Removing the bypass valve coil Removing the bypass valve 114Removing the reactor ACLA24 Removing the reactor DCL A30 115Remove 2 receiver leg fixing screws 4 116 Removing the fan motor MF1, MF2 117 Remove the service panel. See figure Outdoor pipeRemove the top panel. See figure Controller Linear expansion 118Are not oxidized Coil Valve coil Removing the reactor DCL and capacitor CE Low pressure switch 63L119 DCL Remove 2 back cover panel fixing screws 5 10