1-117

7-24. Diagnosis Table

 

 

 

 

 

 

 

Cause

 

Wired remote

Indoor unit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Simultaneous-operation multi system

Control by main-sub

spcontroller dilay

receiver lamp

 

1:1 connection (single type)

 

Group connection

 

 

 

(flexible combination)

remote controllers

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Nothing is

Nothing is

Remote controller is not connected correctly.

Remote controller is not connected with

Same as at left

Same as at left

Indoor unit power is not ON.

indoor unit correctly

 

 

 

 

displayed

displayed

 

 

 

Indoor unit power is not ON.

 

 

 

 

 

 

 

 

 

 

 

 

Automatic address setting has not been

Automatic address setting has not been

Same as at left

Same as at left

 

 

completed.

completed.

 

 

 

 

E 0 1 displayed

 

Inter-unit control wiring is cut or is not

Inter-unit control wiring is cut or is not

 

 

 

 

 

connected correctly.

connected correctly.

 

 

 

 

 

 

 

 

 

 

 

 

Remote controller is not connected correctly

Remote controller is not connected with

 

 

 

 

 

 

(remote controller receiving failure).

indoor unit correctly

 

 

 

 

E 0 2 displayed

Operating lamp

Remote controller is not connected correctly

Remote controller is not connected with

Same as at left

Same as at left

is blinking.

(failure in transmission from remote controller

indoor unit correctly

 

 

 

 

 

 

to indoor unit).

 

 

 

 

 

 

 

E 0 9 displayed

 

 

 

 

 

 

 

 

 

 

2 remote controllers are

 

 

 

 

 

 

 

 

 

 

set as the main remote

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

controller.

E 1 4 displayed

 

 

 

 

 

 

 

Control wiring for group control is cut or

Same as at left

 

 

 

 

 

 

 

is not connected correctly.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

E 0 4 displayed

 

Indoor-outdoor inter-unit wiring is not

Same as at left

Same as at left

Same as at left

 

connected correctly.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Indoor-outdoor inter-unit wiring is cut or

Same as at left

Same as at left

 

 

 

 

 

E 0 6 displayed

Standby lamp

 

 

 

is not connected correctly.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

is blinking.

 

 

 

 

 

 

 

 

 

 

E 1 5 displayed

Indoor unit capacity is too low.

Same as at left

Same as at left

Same as at left

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

E 1 6 displayed

 

Indoor unit capacity is too high.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

E 2 0 displayed

 

No serial signal is being received at all from

 

 

 

 

 

 

 

 

the indoor units.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

P 0 5 displayed

Operation lamp and

Inter-unit circuit or open phase in the outdoor

Reversed phase or open phase in the

Reversed phase or open phase in the

Same as at left

Standby lamp are

unit power

3-phase power at one of the outdoor

outdoor unit 3-phase power

 

 

blinking alternately.

Insufficient gas

units in the group

 

 

 

 

L 0 2 displayed

Both the Operation

Indoor-outdoor unit type mismatch

Same as at left

Same as at left

 

L 1 3 displayed

lamp and Standby

 

 

 

 

 

 

 

 

 

 

 

lamp are blinking

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Control wiring for group control is connected

Same as at left

L 0 7 displayed

together.

 

 

 

 

 

 

 

 

 

 

 

 

 

to the indoor unit, however it is set for individual

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

operation.

 

P 0 9 displayed

Timer lamp and

The indoor unit ceiling panel connector is not

Ceiling panel connector at one of the

Indoor unit ceiling panel connector is not

Same as at left

Standby lamp are

connected correctly.

indoor units in the group is not

connected correctly.

 

 

blinking alternately.

 

 

 

connected correctly.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1. Specifications

1

Page 122 Page 124
Page 123
Image 123
Panasonic R410A service manual Diagnosis Table, Cause, Indoor unit
Page 122 Page 124

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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