[2] Location of leaks: Outdoor unit (Cooling mode)

1Test run all indoor units in cooling mode.

1. With SW3-1 on the MAIN board of the outdoor unit set to ON and SW3-2 OFF → ON to test run all indoor units.

2.Change the remote controller settings so that all indoor units run in cooling mode.

3.Check that all indoor units are running in cooling mode.

2Check the Tc and SC16 data.

(The LED monitor switch (SW1) on the MAIN board of the outdoor unit can be used to display this data on the LED.)

1.If SC16 is 10 degrees or more ................. Continue to step 3.

2.If SC16 is less than 10 degrees ............... After stopping the compressor, remove any refrigerant, repair the leak point, then extract the air to create a vacuum and refill with new refrigerant (same procedure as 4. Location of leaks: Outdoor unit (when heating)).

[Tc LED monitor switch]

[SC16 LED monitor switch]

1 2 3 4 5 6 7 8 9 10

ON

1 2 3 4 5 6 7 8 9 10

ON

3Stop all indoor units and the compressor.

1.

With SW3-1 on the MAIN board of the outdoor unit set to ON and SW3-2 ON → OFF to stop all indoor units and

 

the compressor.

2.

Check that all indoor units have been stopped.

4Close both ball valves (BV1 and BV2).

5Remove a small amount of refrigerant from the liquid ball valve (BV2) check joint. If this operation is not performed,

remaining refrigerant may cause the unit to malfunction.

6Remove any refrigerant remaining in the outdoor unit.

Reclaim the refrigerant; do not discharge it into the air.

7Repair the leak point.

8After the leak point is repaired, change the dryer and extract all of the air from the outdoor unit to create a vacuum.

9Open both ball valves (BV1 and BV2) on the outdoor unit, then adjust the refrigerant amount and verify that the refrigerant is circulating properly.

[3]Location of leaks: Extension piping or indoor units (Heating mode)

1Test run all indoor units in heating mode.

1. With SW3-1 on the MAIN board of the outdoor unit set to ON and SW3-2 OFF → ON to test run all indoor units.

2.Change the remote controller settings so that all indoor units run in heating mode.

3.Check that all indoor units are running in heating mode.

2Stop all indoor units and the compressor.

1.

With SW3-1 on the MAIN board of the outdoor unit set to ON and SW3-2 ON → OFF to stop all indoor units

 

and the compressor.

2.

Check that all indoor units have been stopped.

3Close both ball valves (BV1 and BV2).

4Remove any refrigerant remaining in the extension piping or the indoor units. Reclaim the refrigerant; do not discharge it into the air.

5Repair the leaks.

6After the leaks are repaired, extract all air from the extension piping and the indoor units to create a vacuum. Then, open both ball valves (BV1 and BV2), then adjust the refrigerant amount and verify that the refrigerant is circulating properly.

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Mitsubishi Electronics P500YMF-C Location of leaks Outdoor unit Cooling mode, Stop all indoor units and the compressor
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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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