Understanding of walk-in cooler
Understanding of walk-in cooler
1. How to identify the grade of walk-in cooler Generally, the more stars the walk-in cooler has, the lower the temperature inside the walk-in cooler. my country has formulated a four-star walk-in cooler standard. The one-star freezing temperature can drop to -6℃, and the storage period of frozen food is one week. The two-star can drop to -12℃, and the storage period is one month. Add a high before the two-star can drop to -15℃, the storage period is 1.8 months, and the three-star can drop to -18℃, and the storage period is three months. : The storage period is three months.
2. The primary selection of walk-in cooler is to look at the shape first, pay attention to the shape and color, and whether the paint film is peeling or uneven. Connect the power supply and adjust the temperature, which should be adjusted to the first gear. Let the automatic controller stop automatically, open it several times, check whether the temperature control device is reliable and effective, and then check whether the compressor is running normally, and pay attention to the noise level. At this time, turn the adjusting knob to the position, and the frost will appear in the evaporator after half an hour. Check whether the evaporator walls are even and the heat dissipation is the same. Finally, check whether the walk-in cooler door is tightly closed. And flexible.
3. Quickly identify the walk-in cooler thermostat
l. First turn the temperature control switch to forced cooling (must be five minutes later), and the compressor starts to work.
2. Wait for 5-7 minutes, turn the switch to weak cold gear, the compressor should stop working, and the switch will have ticking .
3. Wait another 5 minutes, turn the switch to the original forced cooling gear, the compressor should work, and then the thermostat can be considered normal.
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