Why should the check pipe be added to the chilled water pipe of the air conditioning unit?
The air conditioning water chiller is usually installed in the basementNo check valve, pump start pressureThe current is likely to boil the pump when the building is high
The air conditioning unit you refer to the indoor air terminal or refrigeration unit (the air conditioning form of this with you to say you take the form of water source heat pump and board for the air conditioning unit, you said that is placed in the interior of the water ring pump unit). The air conditioning unit when you refer to the refrigeration unit, for example by pressing in the form, you will need to pump and the unit set between the check valve to prevent the pump start and stop when the air conditioning water poured into the pump, the damage of equipment; air conditioning units when you refer to (e.g. water loop heat pump indoor unit) in the room, there is no need to set the check valve, usually in the import chilled water is arranged on the electric valve two, flow switch, exhaust valve and so on can.
Check valves are usually installed at the exit of a group of pumps. I have not heard of the installation of check valves at the location of the air conditioning unit.The function of the check valve is to prevent backflow. Prevent backflow of water in water pipe and knock out impeller of water pump.
