Eeprom | Panasonic R410A instruction

					4. Service procedures

Remote	Alarm
controller	Alarm	Judgment condition	Clear condition	Judgment and correction
controller	contents	Judgment condition	Clear condition	Judgment and correction
alarm display	contents
alarm display

F31	EEPROM trouble	Reading/writing failure	Recovery at power	1. Check EEPROM (IC007).
			reset	2. Check outdoor unit control
				PCB.

L02	Mismatch of indoor	Indoor unit judges that type	Recovery at power	1. Check indoor unit EEPROM.
	and outdoor unit types	does not match outdoor unit	reset	2. Check indoor unit control
	(Espacio, Multi )	type.		PCB.

L04	Settings failure	Duplicated outdoor unit	Automatic recovery	1. Check outdoor unit
		address (system address)		system address.
				2. Check inter-unit control
				wiring.

L07	Settings failure	Group control wiring is	Recovery at power	1. Check inter-unit control
		connected to an	reset	wiring.
		independent-control indoor		2. Check indoor unit
				EEPROM.

L10	Settings failure	Outdoor unit capacity not set.	Recovery at power	Check outdoor unit EEPROM.
			reset
L13	Indoor-outdoor unit	Outdoor unit judges that type	Recovery at power	1. Check indoor unit
	types	does not match indoor unit	reset	EEPROM.
		type.		2. Check outdoor unit control
				PCB.

E06	Outdoor unit detected	Serial signal receiving failure	Automatic	1. Check inter-unit control
	abnormal signal from	(including failure to verify No.	recovery	wiring.
	indoor unit.	of units)		2. Check outdoor unit

E07	Outdoor unit sending	Serial signal sending failure	Automatic	1. Check inter-unit control
	failure to indoor unit		recovery	wiring.
				2. Check outdoor unit control
				PCB.
E14	Settings failure	Duplicated master unit in	Recovery at power	1. Check inter-unit control
		simultaneous-operation multi	reset	wiring.
		control		2. Check indoor unit
		(Detected by outdoor unit)		combination.

E15	Automatic address	Indoor unit capacity too low.	Recovery at power	1. Check inter-unit control
	setting failure		reset	wiring.
				2. Check outdoor unit control
				PCB.

E16	Automatic address	Indoor unit capacity too high.	Recovery at power	1. Check inter-unit control
	setting failure		reset	wiring.
				2. Check outdoor unit control
				PCB.		4

E20	Automatic address	Outdoor unit cannot receive	Recovery at power	1. Check inter-unit control
	setting failure	any serial signals from indoor	reset	wiring.
		units.		2. Check outdoor unit control
				PCB.
				PCB.

E31	Communications	No communication possible	Automatic recovery	Check outdoor unit control
	trouble within unit	with MDC for 3 minutes or		PCB.
		longer.

H01	Overcurrent	Inverter stops after alarm is	Recovery at restart	1. Refrigerant cycle trouble,
		detected.		overload operation
				2. Loose screws between HIC
				control PCB and radiating
				plate
				3. Cooling failure of radiating
				plate
				4. Check outdoor unit PCB
				wiring.

4-7

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.

EEPROM.

R410A specifications