Wuxi Guanya Refrigeration Technology co., ltd

Low temperature industrial freezer fan coil wiring instructions

The electric two-way valve red line of the low-temperature industrial freezer is 220V hot wire (L) directly connected to the thermostat fire line interface, the blue line is zero line (N), the coil, the two-way valve, the thermostat is connected in series, green, brown, Yellow, corresponding to the thermostat connected to the fan coil high, medium and low gear, the black line is the two-way valve fire line to the thermostat "open" interface, the control line is 6 color 1.0 square national standard line.

It should be noted that the two-way valve is normally closed, the power is automatically turned off, the electric water circuit is turned on, and the air conditioner starts to cool; therefore, in the wiring process of the two-way valve, it is found that the terminal of the thermostat is "off". No wiring is required. The low-temperature industrial refrigerator drive head is burned, and the general two-way valve will be automatically closed. The emergency measures can be forced to open the two-way valve through the small handle on the drive head to ensure the air cooling and heating.

When the low-temperature industrial refrigerator electric ball valve is wired, the red line is 220V fire line (L) directly connected to the thermostat fire line interface, the blue line is zero line (N), the coil, the two-way valve, the thermostat is connected in series, green, brown, Yellow, corresponding to the thermostat connected to the fan coil high, medium and low gear, black line for the two-way valve fire line to the thermostat "open" interface; Yan Hong line for the two-way valve to the thermostat "off" interface The control line is a national standard line of 7 colors and 1.0 square. It should be noted that this type of electric ball valve only needs to be energized once when the water circuit is turned on and off. When the action is completed, the power is automatically turned off. Unlike the above-mentioned low-temperature industrial refrigerator two-way valve, it is not necessary to energize the switch for a long time. Remove it and use a manual wrench to force the valve body to open or close.

The wiring of the electric two-way valve is not connected to the red wire 220V live wire (L) directly connected to the thermostat fire line interface, the blue line is zero line (N), the coil and the thermostat are connected in series, green, brown, yellow, respectively The thermostat is connected to the high, medium and low gears of the fan coil. The control line is a 5-color 1.0 square national standard line. The low temperature industrial freezer can only adjust the coil wind speed, and the temperature cannot control the opening and closing of the chilled water.

Different low temperature industrial refrigerators are somewhat different in these aspects, so we need to distinguish them one by one.
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