Also, the valve for shut off the steam in emergency did not act properly, owing to the property of the executing machine did not match with the working principle of the chiller, replaced the executing machine and it run normally.

• 另外还出现蒸汽关断阀不能正常动作的情况；原因是阀门执行机构工作特性与制冷机工作原理不匹配；更换执行装置后动作正常.