Removal of the solenoid valve of lyophilizer
Removal steps for the solenoid valve of the lyophilizer:
1. Carry out liquid collection work on the compressor: first, close the shut-off valve under the water condenser, then open the compressor, plate cooling valve, and condensing valve, in turn, pay attention to observe the medium pressure gauge of the compressor and the liquid level sight glass of the water condenser, when the medium pressure is 0KG, the compressor can be stopped, and the shut-off valve above the water condenser can be closed.

2. Immediately close the air switch corresponding to the compressor, and it is strictly forbidden to start the compressor, which will cause the high-pressure exhaust pipe to be exploded.
3. Operate the solenoid valve quickly to prevent excessive air from entering the system
4. Install the solenoid valve coil. If the coil is not put back in its original position when the power is turned on, the coil will be burnt.
