Outdoor LEV

The valve percentage opening changes in proportion to the number of pulses. (Connections between the outdoor unit’s MAIN board and SLEV, (PURY-P400·500YMF-C))

Pulse Signal Output and Valve Operation

Output (phase)				Output states
Output (phase)
	1	2	3		4	5	6	7	8
ø1	ON	OFF	OFF		OFF	OFF	OFF	ON	ON
ø2	ON	ON	ON		OFF	OFF	OFF	OFF	OFF
ø3	OFF	OFF	ON		ON	ON	OFF	OFF	OFF
ø4	OFF	OFF	OFF		OFF	ON	ON	ON	OFF

Output pulses change in the following orders when the

Valve is Closed	1→	2→	3→	4→	5→	6→	7→	8→	1
Valve is Open	8→	7→	6→	5→	4→	3→	2→	1→	8

*1. When the LEV percentage opening does not change, all the output phases are off.

2.When the output is out of phase or remains ON continuously, the motor cannot run smoothly, but move jerkily and vibrates.

LEV Valve Closing and Valve Opening Operations

Valve Opening Angle (Flow Rate)

Valve Closing

Valve Opening

Fully Open 480 pulses

*When the power is switched ON, a 520 pulse valve opening signal is output to make sure the valve’s position, so that it is definitely at point A. (The pulse signal is output for approximately 17 seconds.)

*When the valve operates smoothly, there is no sound from the LEV and no vibration occurs, but when the valve is locked, it emits a noise.

*Whether a sound is being emitted or not can be determined by holding a screwdriver, etc. against it, then placing your ear against the handle.

*If there is liquid refrigerant inside the LEV, the sound may become lower.

Pulse Count

–72–

PURY-P400, P500YMF-C specifications

Mitsubishi Electronics has long been a leader in the HVAC industry, known for its innovative technology and reliable performance. Among its notable offerings are the P500YMF-C and PURY-P400 models, designed to address the diverse needs of commercial and residential applications.

The Mitsubishi P500YMF-C is a high-performance outdoor unit that showcases energy efficiency and advanced refrigerant technology. It employs a sophisticated inverter-driven compressor, which optimizes energy usage by adjusting its speed based on the specific heating and cooling demands of the environment. This flexibility helps to minimize energy consumption while ensuring optimal comfort.

One of the standout features of the P500YMF-C is its ability to provide consistent heating and cooling even in extreme outdoor temperatures. The unit can operate effectively in low-temperature conditions, making it ideal for regions with harsh winters. Furthermore, the system is designed with a robust build, ensuring durability and longevity.

On the other hand, the PURY-P400 is an indoor multi-split system that complements the outdoor unit perfectly. It's designed for versatility and efficiency, capable of accommodating multiple indoor units connected to a single outdoor unit. This feature is particularly beneficial for larger spaces or buildings where different zones require individual climate control.

The PURY-P400 incorporates Mitsubishi's advanced filtration technology, which significantly improves indoor air quality. It features a multi-layer filtration system that effectively removes dust, allergens, and other particulates from the air, ensuring a healthier environment for occupants.

Both systems utilize R-32 refrigerant, which has a lower global warming potential compared to traditional refrigerants. This not only makes them more eco-friendly but also complies with emerging environmental regulations. The ease of installation and operation of these units is another noteworthy characteristic, with intuitive controls and user-friendly interfaces that facilitate seamless integration into existing systems.

In summary, the Mitsubishi P500YMF-C and PURY-P400 represent a fusion of technology, efficiency, and user-centric design. With a range of features aimed at enhancing performance and environmental sustainability, these models are an excellent choice for anyone looking to invest in a reliable and efficient HVAC system. Whether for residential or commercial use, Mitsubishi’s offerings continue to set the standard in comfort and efficiency.

Mitsubishi Electronics P500YMF-C Outdoor LEV, LEV Valve Closing and Valve Opening Operations

Models: PURY-P400 P500YMF-C

Outdoor LEV

OFF

LEV Valve Closing and Valve Opening Operations

PURY-P400, P500YMF-C specifications