Name, Heating | Toshiba MMU-AP0181MH, MMU-AP0151MH, MMU-AP0091MH

Check code

Main	Outdoor 7-segment display
remote
remote	Check code	Auxiliary code
controller	Check code	Auxiliary code

P07	P07	01: Compressor 1 side
		02: Compressor 2 side

P10	P10	Indoor address with
		trouble

P12	—	—

P13	P13	—

P15	P15	01: TS condition

02: TD condition

Detected	Check code	Status		Error detection condition		Check item (position)
position	Check code	Status		Error detection condition		Check item (position)
position	name
	name
IPDU	Heat sink overheat	All stop	IGBT built-in temp sensor (TH) was		• Check power voltage.
I/F	error		overheated.		•	Check outdoor fan system error.
					•	Check clogging of heat sink cooling duct.
					• Check fixation between IGBT and heat sink. (Check screwing and contact.)
					•	Check IPDU error.(IGBT built-in temp sensor (TH) error).
Indoor	Indoor overflow	All stop	•	Float switch operated.	•	Check the float switch connector.
	error		•	Float switch circuit disconnected or the	•	Check operation of drain pump unit.
				connector came off.	•	Check the drain pump circuit.
					•	Check clogging of drain pipe.
					• Check indoor P.C. board error.
Indoor	Indoor fan motor	Corresponding	•	The value of motor speed deviated from	•	Check connection of fan connector and wiring.
	error	unit only stops.		target value was detected for certain time.	•	Check fan motor error.
			•	Over-current protection operated.	•	Check indoor P.C. board error.
					•	Check influence of outside air control.
					• Check indoor type code (DN=10) and the capacity code (DN=11).
I/F	Outdoor liquid	All stop	<In heating>		•	Check full close operation of outdoor PMV (1, 2).
	back detection		While the system is operating in HEAT mode,		• Check Pd and Ps sensor error.
	error		outdoor PMV of which opening degree was		• Check clogging of SV2 circuit.
			100 pulse or less for a certain time.		•	Check clogging of 4-way valve error circuit.
					•	Check clogging of 4-way valve error circuit.
					• Check outdoor P.C. board (I/F) error.
					•	Check capillary clogging of oil return circuit from oil separator.
					• Check TS1, TS2 sensor error.
I/F	Gas leak detection	All stop	Suction temp exceeded the judgment		•	Check refrigerant shortage.
	(TS1 condition)		standard temp for 10 minutes or more.		•	Check full open of outdoor service valves (gas side, liquid side).
			<TS error judgment standard temperature>		• Check outdoor PMV clogging (PMV1, 2).
			In cooling operation: 60°C or higher		• Check characteristics of TS1 sensor resistance value.
			In cooling operation: 60°C or higher		•	Check 4-way valve error.
			In heating operation: 40°C or higher		•	Check 4-way valve error.
			In heating operation: 40°C or higher		•	Check leakage of SV4 circuit.
					•	Check leakage of SV4 circuit.
					•	Check leakage of SV5 circuit.
					•	Check mispiping of discharge gas/suction gas main pipe.
					•	Check Flow selector unit.
						Check leakage of SVD valve and SVS valve. (Check leakage of SVDD valve and SVSS.)
						Check mispiping of FS unit connecting pipe (Suction gas/Discharge gas),
						wiring between FS unit and indoor unit, and connection of connectors.
						Check miswiring of SVS/SVD valves.

I/F	Gas leak detection	All stop	Discharge temperature TD1 or TD2 was		•	Check refrigerant shortage.
	(TD condition)		continuously 108°C or higher for 10 minutes.		•	Check outdoor PMV clogging (PMV1, 2).
					• Check characteristics of TD1, TD2 sensor resistance value.
					•	Check indoor air filter clogging.
					•	Check pipe clogging.
					•	Check SV4 circuit (Valve leakage, misinstallation)
					•	Check mispiping of discharge gas/suction gas main pipe.
					•	Check Flow selector unit.
						Check leakage of SVD valve and SVS valve. (Check leakage of SVDD valve and SVSS.)
						Check mispiping of FS unit connecting pipe (Suction gas/Discharge gas),
						wiring between FS unit and indoor unit, and connection of connectors.
						Check miswiring of SVS/SVD valves.

MMU-AP0181MH, MMU-AP0071MH, MMU-AP0091MH, MMU-AP0151MH, MMU-AP0121MH specifications

The Toshiba MMU-AP series, consisting of models MMU-AP0121MH, MMU-AP0151MH, MMU-AP0091MH, MMU-AP0071MH, and MMU-AP0181MH, represents a significant advancement in the realm of power management and energy efficiency for a variety of applications. These modules are designed to optimize performance while ensuring minimal energy consumption, making them suitable for both commercial and industrial uses.

One of the standout features of the MMU-AP series is its intelligent power management technology. This feature allows for adaptive energy distribution based on real-time demands. By leveraging precise control algorithms, the modules can adjust their output to match the specific requirements of connected devices, ultimately leading to reduced power loss and increased efficiency. This adaptability not only benefits end-users by lowering operational costs but also contributes to a greener environment by minimizing waste.

The versatility of the MMU-AP series is evident in its wide range of operational capabilities. These power modules are designed to work effectively in various voltage levels and load conditions. With input voltage ranges suitable for standard industrial environments, they can easily be integrated into existing systems, enhancing overall functionality without requiring extensive modifications.

Moreover, the compact design of the MMU-AP modules is another notable characteristic. Their size and light weight facilitate easier installation and integration into tight spaces, making them ideal for applications where real estate is a premium. This compact profile does not compromise performance, as these modules are engineered to deliver robust power output while maintaining thermal efficiency.

In terms of reliability, the MMU-AP series is built with high-grade components that withstand harsh operating conditions. With features such as over-voltage protection, short-circuit protection, and thermal shutdown capabilities, users can trust that their equipment would operate safely and efficiently, thereby extending the lifespan of both the power modules and the devices they serve.

Finally, Toshiba’s commitment to innovation ensures that the MMU-AP series incorporates cutting-edge technology. The series supports communication protocols that enable seamless integration with smart systems, paving the way for advanced monitoring and control functions. This levels up the user experience, providing insights into performance and diagnostics that are crucial for uptime and reliability in demanding environments.

In conclusion, the Toshiba MMU-AP series offers a blend of efficiency, adaptability, and advanced technology, making it a valuable asset for various industrial and commercial applications. Its intelligent design and robust features ensure that users can optimize energy use while maintaining high performance and reliability.

remote

Auxiliary code

Check code

name

<In heating>

<TS error judgment standard temperature>

MMU-AP0181MH, MMU-AP0071MH, MMU-AP0091MH, MMU-AP0151MH, MMU-AP0121MH specifications