Contents

Section 1: SPECIFICATIONS

1-1

1-1

Unit SpecifIcations

1-2

1-2

Major Component SpecifIcations

1-20

1-3

Other Component SpecifIcations

1-35

1-4

Dimensional Data

1-38

1-5

Refrigerant Flow Diagram

1-48

1-6

Operating Range

1-49

1-7 Capacity Correction Graph According to Temperature Condition

1-50

1-8

Noise Criterion Curves

1-51

1-9 Increasing the Fan Speed

1-56

1-10 Air throw distance chart

1-57

1-11 ELECTRICAL WIRING

1-60

1-12 Installation Instructions

1-63

1-13 HOW TO PROCESS TUBING

1-118

1-14 LEAK TEST, EVACUATION AND ADDITIONAL REFRIGERANT CHARGE ....

1-122

Section 2: PROCESSES AND FUNCTIONS

2-1

2-1

Room Temperature Control

2-2

2-2 Cold Draft Prevention (Heating Cycle)

2-4

2-3 Automatic Fan Speed (Indoor Unit)

2-5

2-4

Control Functions

2-6

2-5

Outdoor Unit Control PCB

2-9

2-6

Outdoor Unit Control PCB (CR-CH4272R)

2-10

Section 3: ELECTRICAL DATA

3-1

3-1

Indoor Units

3-2

3-2

Outdoor Units

3-10

Section 4: SERVICE PROCEDURES

4-1

4-1 Meaning of Alarm Messages

4-2

4-2 Symptoms and Parts to Inspect

4-5

4-3 Details of Alarm Messages

4-8

4-4

Table of Thermistor Characteristics

4-14

Section 5: OUTDOOR UNIT MAINTENANCE REMOTE CONTROL

5-1

5-1

Overview

5-2

5-2

Functions

5-2

5-3 Normal Display Operations and Functions

5-3

5-4 Monitoring Operations: Display of Indoor Unit and Outdoor Unit Sensor

 

 

Temperatures

5-6

5-5 Monitoring the Outdoor Unit Alarm History: Display of Outdoor Unit

 

 

Alarm History

5-7

5-6 Setting Modes: Setting the Outdoor Unit EEPROM

5-7

Section 6: TSET RUN

6-1

6-1

Preparing for Test Run

6-2

6-2

Caution

6-3

6-3

Test Run Procedure

6-3

6-4 Items to Check Before the Test Run

6-4

6-5 Test Run Using the Remote Controller

6-4

6-6

Precautions

6-4

6-7 Table of Self-Diagnostic Functions and Corrections (U1, K1, T1, F1 Type)

6-5

6-8

Examples of Wiring Diagrams

6-6

vi

Page 5 Page 7
Page 6
Image 6
Panasonic R410A service manual Contents
Page 5 Page 7

R410A specifications

Panasonic R410A is a refrigerant that has gained significant popularity in the air conditioning and refrigeration industry due to its favorable environmental properties and performance characteristics. Specifically designed to replace the harmful R22 refrigerant, which is being phased out due to its ozone-depleting potential, R410A offers a more eco-friendly alternative without compromising on efficiency or power.

One of the main features of R410A is its high energy efficiency. It operates at a higher pressure than R22, resulting in better heat transfer capabilities. This increased efficiency translates to lower energy consumption, making units using R410A more cost-effective in the long run. Additionally, R410A is known for its ability to provide excellent cooling performance even in high-temperature environments, making it suitable for a variety of applications, from residential air conditioning systems to commercial refrigeration units.

In terms of composition, R410A is a blend of two hydrofluorocarbons (HFCs), namely R32 and R125. This combination not only minimizes ozone depletion potential (ODP) but also reduces global warming potential (GWP) compared to older refrigerants. Panasonic has emphasized the importance of innovative technologies in its products, and R410A aligns perfectly with the company's commitment to developing sustainable solutions.

Panasonic also integrates advanced technologies to optimize the performance of R410A systems. For example, variable speed compressors, known as inverter technology, enhance system efficiency by adjusting the compressor's speed according to the cooling demand. This ensures that energy is only consumed when needed, further reducing operational costs.

Furthermore, R410A has a wide range of applications, including air conditioning systems, heat pumps, and chillers. Its versatility makes it a popular choice among manufacturers and consumers alike. The refrigerant is also compatible with existing R22 equipment, although specific retrofit procedures must be followed to ensure peak performance and reliability.

In conclusion, Panasonic R410A stands out as an innovative refrigerant choice in the HVAC industry, offering a combination of energy efficiency, environmentally friendly properties, and advanced technologies. As regulatory frameworks continue to tighten on greenhouse gas emissions, R410A and similar refrigerants are expected to play a crucial role in shaping a more sustainable future for air conditioning and refrigeration. Its high performance and lower environmental impact solidify its position as a leading refrigerant in contemporary cooling solutions.
Top Page Image Contents