The laboratory thermostat is a laboratory temperature control equipment produced by LNEYA that integrates heating and cooling.

1. Confirm that the status of the valves related to the laboratory refrigeration and heating equipment meets the start-up requirements, and supply power and power on the electronic control device of the laboratory thermostat integrated unit;
2. Turn on the switch to make the power control indicator light on, start the cooling water pump, cooling fan, and refrigeration pump, and you should be able to see the three laboratory refrigeration and heating equipment operation indicators on;
3. Check the temperature of the lubricating oil in the laboratory thermostat. After the oil pump starts, put the energy regulating valve in the unloading position, confirm that the slide valve is zero, and adjust the oil pressure control valve;
4. Turn on the power supply of the laboratory thermostat compressor, start the control switch, and open the compressor suction valve. After 3 minutes, the compressor starts to work;
5. After the laboratory thermostat equipment compressor is running, adjust the lubricating oil pressure value to be higher than the discharge pressure, close the solenoid valve control circuit on the liquid supply pipe, start the solenoid valve to enter the liquid refrigerant, and place the energy adjustment device on the charging position, gradually increasing the load;
6. When the laboratory thermostat compressor reaches the lubrication temperature after operation, please turn off the power of the electric heater and open the inlet and outlet valves of the cooling water to keep the oil temperature within the working cycle of the compressor;
7. Check the start-up items of the laboratory thermostat. After start-up and operation, the following checks should be carried out to ensure the normal operation of the equipment. The sound and vibration of the cooling pump, cooling pump and fan, as well as the water outlet pressure and water temperature of the water pump are all within normal working parameters. within the scope;
8. When the laboratory thermostat compressor is running, whether the working current of the motor is within the specified range. If the current is too large, it should be adjusted to reduce the operating load and prevent the motor from burning out due to excessive working current.