Mitsubishi Electronics MUY-D30NA, MUZ-D36NA, MUY-D36NA, U1 Refrigerant System Diagram, Lev

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6 REFRIGERANT SYSTEM DIAGRAM

MUZ-D30NA

Unit:inch

MUZ-D36NA

 

Oil separator

Refrigerant pipe

5/8

4-way valve

(with heat insulator)

 

Strainer

Capillary tube

#100

O.D. 0.071 x I.D. 0.024

 

x 39-3/8

 

( 1.8 x 0.6 x 1,000)

Stop valve

 

 

Service

 

 

 

(with service port)

 

port

Defrost

Outdoor

 

Flared connection

 

 

High-pressure

heat

Ambient

 

 

 

thermistor

exchanger

temperature

 

 

 

Switch

RT61

 

thermistor

 

 

 

Discharge

 

 

RT65

 

 

 

 

 

 

 

Service

 

temperature

 

 

 

 

thermistor

 

 

 

 

port

 

 

 

 

 

 

RT62

 

 

 

 

 

 

 

 

 

 

 

Compressor

Outdoor heat

 

 

 

 

 

exchanger

 

 

 

 

 

temperature

 

 

 

 

 

thermistor

 

Flared connection

 

 

 

RT68

 

Strainer

LEV

Strainer

 

 

 

 

 

R.V. coil

 

Receiver #100

 

#100

 

 

 

 

 

 

 

heating ON

 

Stop valve

Capillary tube

 

 

 

cooling OFF

 

 

 

 

 

 

Refrigerant pipe 3/8

O.D. 0.142

I.D. 0.094

 

Refrigerant flow in cooling

 

(with heat insulator)

1-31/32

50)

 

Refrigerant flow in heating

 

( 3.6 2.4

 

 

MUY-D30NA

 

 

 

Unit:inch

MUY-D36NA

 

 

 

 

 

Oil separator

 

Capillary tube

 

O.D. 0.071 x I.D. 0.024

Refrigerant pipe 5/8

x 39-3/8

(with heat insulator)

( 1.8 x 0.6 x 1,000)

 

 

Strainer

 

 

#100

Stop valve

 

Service

 

port

(with service port)

High-pressure

Flared connection

 

 

Switch

 

 

 

 

Discharge

 

Service

temperature

 

thermistor

 

port

RT62

 

Compressor

Flared connection

LEV

Strainer

 

 

 

#100

Stop valve

Capillary tube

 

Outdoor

 

heat

Ambient

exchanger

 

 

 

 

 

 

 

temperature

 

 

 

 

 

 

 

thermistor

 

 

 

 

 

 

 

RT65

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Outdoor heat exchanger temperature thermistor RT68

Refrigerant pipe 3/8

O.D. 0.142 x I.D. 0.094

 

 

x 1-31/32

 

 

(with heat insulator)

 

Refrigerant flow in cooling

( 3.6 x 2.4 x 50)

 

 

9

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Contents Outdoor Unit Page Part Names and Functions Technical ChangesHspf TotalCOP TNB220FMCHTOperating Range ARISeer Required Space Outlines and DimensionsWiring Diagram MUY-D30NA MUY-D36NA LEV Refrigerant System DiagramMAX. Refrigerant Piping Length and MAX. Height Difference Performance Data Cooling Capacity DataMUZ-D30NA MUZ-D36NA MUY-D30NA Performance Curve CoolingMUY-D36NA HeatingCondensing Pressure Cooling 380 420 340 300 26068 100 105F MSZ-D30NA MSZ-D36NA MSY-D30NA MSY-D36NA Standard Operation DataInput correction factors Test RUN Operation How to operate fixed-frequency operation Outdoor FAN Motor Control Actuator ControlR.V. Coil Control MUZ Relation between main sensor and actuatorService Functions Change in Defrost SettingPRE-HEAT Control Take care of the following during servicing TroubleshootingFailure Mode Recall Function Operational procedure Outdoor unit failure mode table LED LED1 LED2 Troubleshooting Check TableMUZ YLW BRN BLK WHT WHT REDTroubleshooting Flow How to check inverter/ compressorCheck of outdoor thermistors Heating operation does not work Check of R.V. coil MUZ-D30/36Check of outdoor fan motor Check of power supplyCheck of LEV Check of compressor start failureHow to check miswiring and serial signal error Check of HPS Electromagnetic noise enters into TV sets or radios Outdoor electronic control P.C. board Test Point Diagram and VoltageNoise filter P.C. board CN2 Outdoor power boardCN3 CN5Removing the cabinet Photo Disassembly InstructionsPhoto 5 Inverter assembly Removing R.V. coil MUZHPS Thermistor Temperature thermistor and ambient temperatureRemoving outdoor fan motor MUZRemoving the reactor Removing the compressor and 4-way valve PhotoPage Specifications subject to change without notice

MUY-D36NA, MUZ-D30NA, U1, MUY-D30NA, MUZ-D36NA specifications

Mitsubishi Electronics has long been at the forefront of innovation in heating and cooling solutions, and its latest lineup of multi-zone air conditioning units—MUZ-D36NA, MUY-D30NA, U1, MUZ-D30NA, and MUY-D36NA—reflects this commitment to quality and efficiency. Designed for both residential and commercial applications, these units offer advanced features that enhance comfort and energy savings.

One of the standout characteristics of these models is their energy efficiency. Each unit is equipped with high SEER (Seasonal Energy Efficiency Ratio) ratings, making them ideal for users looking to reduce energy consumption while maintaining optimal indoor climates. The efficiency is complemented by inverter technology, which allows the compressor to adjust its speed based on the cooling demand. This results in a smoother operation, reduced noise levels, and significant energy savings over time.

These units also feature advanced filtration systems that improve indoor air quality. The included high-performance air filters capture dust, allergens, and other particles, ensuring that occupants breathe cleaner air. Additionally, some models are equipped with a plasma filtration system that actively neutralizes odors and airborne contaminants, making them particularly suitable for allergy sufferers.

Mitsubishi's advanced climate control technologies set these models apart. The system can be easily controlled using a user-friendly remote or via a mobile app, offering convenience and flexibility. The intelligent temperature control ensures that rooms are heated or cooled consistently, regardless of external conditions.

Installation versatility is another highlight. These units can be configured for multi-zone systems, allowing for tailored comfort in different spaces. The compact and sleek design makes them suitable for various installations, whether in homes, offices, or retail environments.

Furthermore, the MUZ-D and MUY-D series are equipped with quiet operation features, ensuring minimal disruption in both residential and commercial settings. This is particularly beneficial in spaces where noise could be a concern, such as bedrooms or conference rooms.

In summary, Mitsubishi's MUZ-D36NA, MUY-D30NA, U1, MUZ-D30NA, and MUY-D36NA offer a powerful combination of energy efficiency, advanced filtration, intelligent controls, and quiet operation. These features make them an excellent choice for anyone looking to enhance indoor comfort while minimizing environmental impact. Whether it's for a single room or an entire building, these units are engineered to deliver reliable performance year-round.