4. Service procedures

 

 

 

Wired

 

 

 

remote

 

 

 

control

 

Possible cause of malfunction

display

 

 

Ceiling panel connection failure

 

P09

 

 

 

 

Activation of

Indoor protection

Fan protective thermostat

P01

protective

 

 

 

 

Float switch

P10

device

 

 

Discharge temperature trouble

P03

 

 

 

 

 

 

 

Outdoor protection

High pressure switch or compressor motor thermal protector is activated.

P04

 

 

 

 

 

 

Open phase detected, AC power trouble

P05

 

 

 

 

 

 

No gas

P15

 

 

 

 

 

 

4-way valve locked

P19

 

 

 

 

 

 

High cooling load

P20

 

 

 

 

 

 

Outdoor fan trouble

P22

 

 

 

 

 

 

Inverter compressor trouble (HIC PCB)

P26

 

 

 

 

 

 

Inverter compressor trouble (MDC)

P29

 

 

 

 

 

 

Simultaneous-operation multi control trouble

P31

 

 

Compressor current failure (overload)

H01

Thermistor

Thermistor open circuit

Indoor heat exchanger temperature sensor (E1)

F01

fault

• Short circuit (indoor)

 

 

Indoor heat exchanger temperature sensor (E2)

F02

 

 

 

 

 

 

 

 

Indoor temperature sensor

F10

 

Thermistor open circuit

Discharge temperature (TD)

F04

 

• Short circuit (outdoor)

 

 

 

Outdoor heat exchanger temperature (C1)

F06

 

 

 

 

 

 

 

 

Outdoor heat exchanger temperature (C2)

F07

 

 

 

 

 

 

Outdoor air temperature (TO)

F08

 

 

 

 

 

 

Intake temperature (TS)

F12

 

 

Indoor EEPROM error

F29

 

 

Outdoor EEPROM error

F31

Wireless

remote controller receiver display

Operation

Timer

Standby

Alternately

Alternately

Alter.

Alter.

Simul.

Simul.

4

4-3

Page 166 Page 168
Page 167
Image 167
Panasonic R410A service manual Wireless
Page 166 Page 168

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.
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