Industrial Fan Motor Gets Hot

Maintaining the condenser fan motor can help to prolong the life of the ac compressor.

Industrial fan motor gets hot.

The condenser fan motor is what runs to turn the fan blades and blow air across the condenser coil where it cools the refrigerant from a hot gas into a liquid. The winding limit is given by the temperature class of the insulation system. The frequent use of variable frequency drives vfds can result in detrimental effects to electric motors because of the condition of power in manufacturing facilities. For example 266 degrees f for class b and the bearing and lubricant upper limit is usually around 212 degrees f.

For example if a 100 hp motor has an unbalance factor of 3 percent the motor should be derated to 0 88 or 88 percent of capacity 88 hp. Today as a u s. I have an old 25 inch 3 blade industial fan. Fan motor is too hot 4 tips to reduce heat increase durability for all electric fans when used.

A motor that is too small will not be able to dissipate heat quickly enough and the motor will overheat. Testing the motor as part of a routine maintenance program also reduces the possibility of failure due to excessive heat. I ve had a friend tell me to just toss it into the garbage but it s been ol. For 70 years tpi corporation has been known as america s comfort conditioning company.

Don t judge the temperature of the motor just by feeling the outside surface with your hand. Based privately held manufacturer tpi corporation continues to produce innovative industry leading products for the electric heating fan and ventilation industrial lighting commercial controls and industrial oven markets. It runs fine but after 5 minutes of use usually immediately the motor gets very hot. It s got a dayton lr something 1 4 horsepower motor on it.

Electrical motor issues are frequent and consistent if there s a fundamental problem with your motor. What feels hot to you is cool for somebody else. Motor temperatures limits are mainly based on bearing lubricant and winding thermal capability. How to increase fan efficiency so as not to affect the pow.

Running it to failure isn t an option and heat mitigation measures do nothing to solve the underlying problem. If a motor is running in a much warmer environment than it was designed for it can overheat because the ambient temperatures will make it more difficult for the motor to cool down properly. When i say motor i mean the housing over the motor hot enough to throw a pan over and start cooking bacon n eggs.