Use and maintenance of hot and cold water coils

1. The maximum working pressure of the coil is 20kg, the normal water supply pressure is 2~4kg, and the overpressure operation is cut off;

2. In areas where winter freezes, the surface cooler should be emptied before winter comes, and the hot water coil should also be emptied during shutdown to prevent the coil from freezing and cracking;

3. Be sure to set a filter on the inlet pipe of the coil. If the coil is seriously blocked by debris, the cooling capacity will be significantly reduced, and the coil needs to be replaced;

4. After the hot and cold water coil is used for a period of time, there will be a layer of dust on its surface, which reduces the heat transfer coefficient. Please be sure to clean it regularly;

Drain pipe precautions

1. The water trap should be insulated, otherwise there will be a lot of condensation;

2. The condensate drainage pipe must have a certain slope, otherwise it will lead to poor drainage;

3. The unit should make a suitable water trap, otherwise it will lead to poor drainage in the negative pressure section;

4. If there is water in the unit, please first confirm whether the condensate pipe is unblocked;

Pump Operation Check

1. Whether the three-phase current of the water pump is normal, there is no phase bias and overcurrent;

2. Whether the water pressure and water volume of the pump in operation meet the requirements;

3. The leakage of each valve shall be repaired or replaced in time;

4. Whether the water filter is blocked.

Water pump failure and treatment

1. The water pump does not produce water, and the pointer of the pressure gauge jumps violently; (there is air in the pump body, the suction pipe leaks, and the pipeline is blocked)

2. There is water pressure but the water pump does not produce water; (the outlet pipe is blocked or the valve is not opened, reversed, and the speed is low)

3. The flow rate of the pump is too small; (siltation, impeller wear)

4. The water pump is overheated; (the lubricating oil is too little, the bearing is damaged)

For more product information, click here: Chilled Water Coils.