5. Outdoor unit maintenance remote control

5-3. Normal Display Operations and Functions

Normal display functions

•Connect the special service checker wiring to the outdoor unit PCB. The connection is shown in the figure below.

RC (3P, blue)

PCB connector (3P, blue)

Special service checker wiring

Relay connector (2P, white)

Remote controller Assy

Outdoor unit PCB

*It is not necessary to disconnect the communications line in the inter-unit control wiring if it has already been connected at this time.

*Setting modes 1 and 2 can be used even when the outdoor unit is independent (when 1 maintenance remote controller is connected to 1 outdoor unit and automatic address setting for the indoor units has not been com- pleted).

*Displays the overall system status for that refrigerant system.

All units start/stop (Fig. 1) <Operation>

The button can be used to start and stop all the indoor units.

•The LED turns ON when 1 or more indoor units is operating.

•The LED blinks when an alarm has occurred at 1 or more indoor units during operation.

Switching between cooling/heating (Fig. 1) <Operation>

The button switches between heating and cooling modes.

•The specifications are equivalent to the heating/cooling input that was present on earlier outdoor unit PCBs.

•The display shows the operating mode of the indoor unit with the lowest number.

All units test run (Fig. 2) <Operation>

The button switches test run ON/OFF for all indoor units.

•Press and hold for 4 seconds to turn ON.

“Test run” is displayed while the test run is in progress.

•Conditions of test runs that are started from the unit remote controller are not displayed on the outdoor unit maintenance remote controller.

Fig. 1

Fig.2

5

5-3

Page 180 Page 182
Page 181
Image 181
Panasonic R410A All units start/stop Operation, Switching between cooling/heating Operation, All units test run Operation
Page 180 Page 182

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