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Fluorine-free display cases maintenance points

fluorine-free display cases maintenance points are as follows: (1) The opening time should be short and the filter must be replaced. The R134a refrigerant compressor uses vinegar oil, which is compatible with water, so it is required The system remains absolutely dry. When the system opening is exposed, the moisture in the air will affect the dryness of the system. Therefore, the system opening...

display freezerTIME：2016-08-22
R600a fluorine-free commercial refrigeration repair fault diagnosis and troubleshooting

R600a fluorine-free commercial refrigeration repair fault diagnosis and troubleshooting R600a fluorine-free commercial refrigeration repair fault diagnosis and troubleshooting are the same as fluorine-free commercial refrigeration, but the refrigerant is flammable and flammable. It is heavier than air and completely soluble in mineral oil. The commercial refrigeration refrigerant charge is sma...

display freezerTIME：2016-08-22
The role of safety valves, fusible plugs, and emergency ammonia vents in walk-in cooler

The role of safety valves, fusible plugs, and emergency ammonia vents in walk-in cooler Safety valves, fusible plugs, and fusible plugs in walk-in cooler In order to prevent the refrigeration device from damaging the equipment due to the excessive pressure of the emergency ammonia discharge device, a safety valve or fusible plug is generally installed in the refrigeration system at a higher pre...

walk-in display coolersTIME：2016-08-22
Freon commercial refrigeration refrigeration equipment automatic control analysis

Typical commercial refrigeration refrigeration equipment automatic control analysis According to different refrigerants, commercial refrigeration has freon refrigeration system and ammonia refrigeration system. The following is an introduction to the automatic control of typical Freon commercial refrigeration refrigeration systems and ammonia commercial refrigeration refrigeration systems. Fr...

walk-in display coolersTIME：2016-08-22
Freon display cases Automatic control analysis of refrigeration equipment (2)

Freon display cases Automatic control analysis of refrigeration equipment For example: if the temperature of the meat cabinet is higher than the specified cabinet temperature, the contact of the temperature controller 1WD is closed, and the solenoid valve is 1DF The coil is energized and the solenoid valve is opened. At this time, the expansion valve is also opened due to the increase in temper...

display refrigeratorTIME：2016-08-22
R600a fluorine-free display cooler repair fault diagnosis and troubleshooting (2)

R600a fluorine-free display cooler repair fault diagnosis and troubleshooting (2) The operating procedure is as follows: ①Use a wire pliers to break off the process tube seal welds to drain the refrigerant ； ② display cooler The compressor is energized and run for 30 minutes-60 minutes; ③Use a wire pliers to break off the compressor process tube to seal the weld, use a pipe knife to cut the...

commercial refrigerationTIME：2016-08-22
R600a fluorine-free walk-in cooler repair fault diagnosis and troubleshooting (3)

R600a fluorine-free walk-in cooler repair fault diagnosis and troubleshooting walk-in cooler The vacuum pumping time of the system is long, and the pumping process involves intermittent shaking of the compressor , To separate the refrigerant dissolved in the refrigerant oil in the compressor. It is better to use a high-precision electronic scale to refill the refrigerant. Without replacing t...

display refrigeratorTIME：2016-08-22
Walk-in cooler evaporation pressure adjustment principle and function

walk-in cooler evaporation pressure adjustment adjustment walk-in cooler control elements: evaporation pressure regulator 11, bypass regulator 12, low pressure controller 13. regulation and control principle: an evaporation pressure regulating valve is installed at the outlet of the evaporator of the high temperature library to ensure that the five walk-in coolers work at their required evap...

display refrigeratorTIME：2016-08-22
Safety protection principle of walk-in cooler refrigeration system

Safety protection of walk-in cooler refrigeration system Protection components in walk-in cooler: high pressure controller 14, safety valve 18, oil pressure difference controller 15, liquid injection valve 16, Check valve 10 etc. (1) Principle of high-pressure protection: the exhaust pressure is controlled by a high-pressure controller. When the pressure of the walk-in cooler exceeds the set...

walk-in display coolersTIME：2016-08-22
Supermarket refrigerated showcase Alternative methods between refrigerants

Supermarket refrigerated showcase Alternative methods between refrigerants At present, there are household supermarket refrigerated showcases in the society. The main refrigerants used are R12, mixed refrigerants, R134a and R600a, etc. The main characteristic parameters of the four refrigerants are quite different, and the requirements for the refrigeration system are also different. In prin...

display refrigeratorTIME：2016-08-22

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