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Mitsubishi Electronics PURY-P400, P500YMF-C specifications Bypass capacity control, SV6a, Stop, Off

Models: PURY-P400 P500YMF-C

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•The operating temperature is 124° C (No. 1 compressor) or 115° C (No. 2 compressor).

4)Compressor frequency control 1 Ordinary control

The ordinary control is performed after the following times have passed.

•30 seconds after the start of the compressor or 30 seconds after the completion of defrosting.

•30 seconds after frequency control operation by means off the discharge temperature or the high pressure. 2 Amount of frequency fluctuation

The amount of frequency fluctuation is controlled in response to the evaporation temperature (Te) and the condensation temperature (Tc) so that it will reach the target values.

3 Frequency control back-up by the bypass valve

Frequency control is backed-up by the turning on (opening) the bypass valve (SV4a) when only the No. 1 compressor is operated at its lowest frequency.

•Cooling

After the compressor has been operated for 15 minutes and only the No. 1 compressor is operated in un-load (its lowest frequency), the bypass valve is turned ON when the low pressure (63 LS) is 1.0 kg/cm2 G (0.098 MPa) or less and turned OFF when it is 2.0 kg/cm2 G (0.196 MPa) or more.

ON

 

 

 

 

 

 

 

 

OFF

 

 

 

 

 

 

 

2.0 kg/cm2G

 

1.0 kg/cm2G

 

(0.098 MPa)

(0.196 MPa)

•Heating

After the compressor has been operated for 3 minutes and only the No. 1 compressor is operated in un-load (its lowest frequency), the bypass valve is turned ON when the high pressure (Pd) exceeds 27 kg/cm2 (2.65 MPa) and turned OFF when it is 24 kg/cm2 (2.35 MPa) or less.

ON

OFF

24 kg/cm2G

27 kg/cm2G

(2.35 MPa)

(2.65 MPa)

(4)Bypass - capacity control

The solenoid valves are bypass valves (SV1, SV4a and SV6a) that allow bypassing of the high pressure and low pressure sides and solenoid valves (SV22 and SV32) that control the capacity control valve inside the compressor. They operate as follows.

1)Bypass valve (SV6a) [SV6a is on (open)]

•As shown in the table below, control is performed by the operation and stopping of the No. 1 compressor and No. 2 compressor.

No. 1 compressor

No. 2 compressor

SV6a

 

 

 

Stop

Stop

OFF

 

 

 

Operate

Stop

ON

 

 

 

Operate

Operate

OFF

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Mitsubishi Electronics PURY-P400, P500YMF-C specifications Bypass capacity control, SV6a, Stop, Off
Page 42 Page 44

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.