Maintenance Of Chillers

The opening and stopping sequence of the chiller To ensure the normal operation of the air conditioner host after starting, it must be ensured that:
(1) The condenser dissipates heat well, otherwise it will stop due to the cold-condensation temperature and the corresponding condensation pressure being too high, so that the high-pressure protection device of the chiller will stop and even cause failure.
(2) The cold water in the evaporator should circulate and flow, otherwise it will stop due to the low temperature of the cold water, resulting in the action of the cold water temperature protection device, or stop because the evaporation temperature and the corresponding evaporation pressure are too low, which is the low-pressure protection device of the chiller, and even cause the cold water in the evaporator to freeze and damage the equipment. Therefore, the start-up sequence of the chiller is: (must be strictly observed) Cooling tower fan on - > cooling water pump on - > cold water pump on - > chiller on The shutdown order of the chiller is: (must be strictly observed) Chiller stop - > cooling tower fan stop - > cooling water pump stop - > cold water pump stop