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Some matters needing attention in the maintenance of supermarket refrigerated showcase

Some matters needing attention in the maintenance of supermarket refrigerated showcase Therefore, when installing or repairing the evaporator for gas welding, keep it away from the inner tank as much as possible, and it is best to place a heat shield on the inner tank. Electrical system maintenance precautions During live maintenance, the human body cannot touch the electrical system device ...

commercial refrigerationTIME：2016-08-22
Some matters needing attention in display cooler maintenance (2)

Some matters needing attention in display cooler maintenance Before connecting the refrigeration pipes, the two pipe ports of the display cooler should be polished clean, and the ordinary pipe ports should be inserted about lcm-1.5cm; the capillary should be inserted into the dry filter The inner diameter of the reducer and the evaporator is about 1.5cm; for the embedded evaporator model, a se...

walk-in display coolersTIME：2016-08-22
Commonly used display cases Pressure-sensitive temperature controller

Commonly used display cases Pressure-sensitive temperature controller WT-1226 type display cases temperature relay, it is a temperature-wrapped temperature relay. It is mainly composed of temperature bulb, capillary tube, bellows, fixed value spring, differential spring, lever, arm, contact and other components. The temperature bulb, capillary tube and bellows constitute a temperature sensing ...

display refrigeratorTIME：2016-08-22
WTQ-288 type supermarket refrigerated showcase electric contact pressure thermometer

WTQ-288 type supermarket refrigerated showcase electric contact pressure thermometer The temperature of the acting liquid and gas, and when the working temperature reaches or exceeds a predetermined value, it will send out electric signals and alarm bells. It can also be used as a circuit contact switch in a supermarket refrigerated showcase temperature regulation system. The temperature bulb,...

walk-in display coolersTIME：2016-08-22
Maintenance of supermarket refrigerated showcase Ten taboos

Repair supermarket refrigerated showcase Ten taboos Beginners develop good habits to quickly find and repair the failure of the supermarket refrigerated showcase, and restore the original performance of the supermarket refrigerated showcase. If the original noise is 49dB, the ratio of on-off time is 0.8:1. After the repair, the noise becomes louder, the ratio of on-off time is 1.5:1, the tempe...

display refrigeratorTIME：2016-08-22
Maintenance of display cooler ten taboos (2)

maintenance of display cooler ten taboos taboo blind replacement repair work found that there are quite a few beginners, before the display cooler failure has been determined, they just try to change the mentality. Anyway, the display cooler has only a dozen devices in total, especially if there is a non-stop failure. Little do you know that each of these ten or so devices has its own unique p...

commercial refrigerationTIME：2016-08-22
Commercial refrigeration level adjustment and its control components

commercial refrigeration level adjustment and its control components Some equipment in the refrigeration system usually needs to maintain a certain level to ensure the normal liquid and oil supply of the commercial refrigeration system. In addition to the role of liquid level control, some liquid level controllers also play a role of liquid level indication and safety alarm. The refrigeration ...

commercial refrigerationTIME：2016-08-22
Supermarket refrigerated showcase Liquid level adjustment principle

Supermarket refrigerated showcase Liquid level adjustment principle Operation principle: When the liquid level in the evaporator (or intercooler) drops, the liquid level in the valve body also drops, and the floating ball falls. The needle valve opens the valve hole larger, so the supermarket refrigerated showcase increases the liquid supply; on the contrary, when the profile rises, the float ...

commercial refrigerationTIME：2016-08-22
Maintenance of display cooler Ten taboos (2)

Maintenance of display cooler Ten taboos Do not suppress If the pressure value does not drop, it is judged that the refrigeration pipeline is not leaking. When the display cooler is maintained, it is often encountered with a cooling difference, low refrigerant discharge and compression when deflating The machine exhaust is normal, and it is judged that the refrigeration pipeline is leaking. ...

display refrigeratorTIME：2016-08-22
Maintenance of commercial refrigeration ten taboos (3)

maintenance of commercial refrigeration ten taboos taboos not to remove the flux after brass soldering. Before welding with brass electrodes, stick the electrode head with copper powder or borax to facilitate welding and ensure quality . But after the welding is completed, use a wire pliers to remove the flux, so as to find the leaks that have not been welded when the pressure is checked. [Not...

walk-in display coolersTIME：2016-08-22

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