Checking code

1500 Overcharged refrigerant abnormality

1501

Lacked

 

refrigerant

 

abnormal-

 

ity

Insufficient refrigerant abnormality

Meaning, detecting method

 

 

Cause

Checking method

1. When discharge superheart

 

1)

Excessive refrigerant charge.

Check refrigerant amount.

10 deg is keeping for 10 minutes

 

 

 

or discharge superheat

20

2)

Thermistor trouble (TH1).

Check resistance of thermistor.

deg for 15 minutes, outdoor unit

 

 

 

stops once, and after 3 minutes,

3)

Pressure sensor trouble (63HS).

See trouble shooting of pressure sensor.

the unit restarts.

 

 

 

 

For 60 minutes after unit stopped

4)

Control circuit board trouble.

Check temperature and pressure sen-

is intermittent fault check period.

 

 

sor with LED monitor.

2.When discharge superheart 10 deg is keeping for 10 minutes

or discharge superheat 20 deg for 15 minutes again (sec- ond time), the unit stops and er- ror code 1500 is displayed.

3.In case of SW2-6 ON, the de- tection for the second time is fol- lowed by the first time.

1. When the unit condition is as

1)

Gas leakage, insufficient gas.

Refer to the item on judging the refrig-

follows, the compressor is

 

 

erant volume.

stopped (1st detection) and af-

 

 

 

ter 3 minutes, the compressor

2)

Overload operation.

Check the indoor and outdoor unit op-

is restarted automatically.

 

 

erating conditions.

PUHY-P200·250YMF-C

 

 

 

1F<60Hz and TH10>85° C 3) Indoor unit LEV operation is faulty. Actually run the equipment in cooling

 

continuously for 60 minutes.

4)

Outdoor unit SLEV operation is

or heating mode and check the operat-

2

F<60Hz and TH10>95° C

 

faulty.

ing condition.

 

 

continuously for 15 minutes.

 

 

Cooling :

Indoor unit LEV

3

F

60Hz and TH10>100° C

 

 

 

SLEV

 

continuously for 60 minutes.

 

 

Heating :

Indoor unit LEV

4

F

60Hz and TH10>110° C

 

 

 

SLEV

 

continuously for 15 minutes.

 

 

 

 

PURY-P200·250YMF-C

 

 

Refer to the item concerning judging

1

F<60Hz and TH10>85° C

 

 

LEV failure.

 

 

continuously for 60 minutes.

 

 

 

 

2

F<60Hz and TH10>95° C

5)

Ball valve operation is faulty.

Check with the ball valve fully open.

 

continuously for 15 minutes.

 

 

 

 

3

F

60Hz and TH10>100° C

6)

The thermistor is faulty.

Check the thermistor’s resistance.

 

continuously for 60 minutes.

 

 

 

 

4

F

60Hz and TH10>110° C

7)

The control board’s thermistor in-

Check the sensor’s temperature read-

 

continuously for 15 minutes.

 

put circuit is faulty.

ing by the LED monitor.

2.If the temperature rises again as above within 2 hours after the out- door unit is stopped (2nd detection), an error stop is performed, and the check code 1501 is displayed.

3.If the temperature rises again as above within 2 hours after the out- door unit is stopped, it becomes the first detection again, and operation is the same as in 1 above.

4.The 2 hour period after the outdoor unit stops is the abnormal delay pe- riod, and LED display is carried out during the abnormal stop delay.

–109–

Page 110 Page 112
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Mitsubishi Electronics PURY-P400, P500YMF-C specifications 109, Slev
Page 110 Page 112

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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