(6) Dry operation

1.Indoor unit fan stop

2.Inverter output 0Hz

3.Indoor unit LEV, oil return LEV closed

4.Solenoid valve OFF

5.Outdoor unit fan stop

6.BC controller solenoid valve OFF

7.BC controller LEV fully closed

Dry operations

 

 

 

 

Normal operations

 

 

 

 

 

 

Thermostat ON

4-way valve OFF

 

 

 

 

 

 

 

 

 

Stop

 

 

 

 

 

 

YES

Test run start

 

Note : 2

 

 

 

 

 

 

 

 

 

 

 

Thermostat ON

 

 

NO

 

 

 

 

 

 

 

NO

Inlet temp. 18˚C

YES

Note : 1

1.Outdoor unit (Compressor) intermit- tent operations

2.Indoor unit fan intermittent opera- tionsYES

(Synchronized with compressor : low speed, OFF operations)

Note : 1

When indoor unit inlet temperature exceeds 18˚C, outdoor unit (compressor) and indoor unit fan start intermittent operations

 

synchronously. Operations of outdoor unit, BC controller, indoor unit LEV and solenoid valve accompanying compressor are

 

the same as those in cooling operations.

 

 

Note : 2

Thermostat is always kept on in test run, and indoor and outdoor unit intermittent operation (ON) time is a little longer than

 

normal operations.

 

 

–55–

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Image 57
Mitsubishi Electronics PURY-P400 Dry operation, Thermostat on Inlet temp ˚C, Same as those in cooling operations
Page 56 Page 58

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.
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