How important is a blower motor?
A blower motor is a component within an HVAC system that is responsible for circulating air into the building. It’s the key to maintaining a comfortable temperature and humidity throughout your facility. Blower motors push cold air (in the summer) or hot air (in the winter) through ducts to the desired locations.
How do blower motors work?
The operation of a blower motor is relatively simple. When voltage is applied to the electric motor, it spins. When heat is desired, air flow from the blower motor is directed to pass through the heater core. That causes the air to heat up, and hot air is subsequently blown out of the air vents.
What type of motor is used in blower?
Induction motors
Induction motors — or (in the context of blowers in particular) often called by the more playful squirrel-cage motors (to avoid confusion with inducer-blower products). In fact, these motors are the most common used in blowers today, as they excel in high-horsepower blower and cooling-fan applications. 3.
What do you need to know about a blower motor?
In most cases, a single blower motor is responsible for delivering both hot and cool air, on demand, depending on how the climate controls are set. A blower motor typically consists of a DC motor, housing, and fan cage. 2 Where is a Blower Motor Located? 3 How Does a Blower Motor Work?
What’s the current draw on a blower generator?
The speed has been checked with a tacho, both motor and blower are as expected. The calculated current draw based on speed and discharge pressure is 68 amps but the motors are reported to be drawing 90 Amps. They have already burnt out one motor but this may have been due to a bearing failure.
Why is my blower motor not working properly?
Outside causes include the blower motor resistor, fan relay, and climate control switches. If any of those components prevent voltage from reaching the blower motor, it won’t work. If the blower works on high but not on lower speeds, the resistor is sometimes the culprit.
Which is the working principle of a blower?
Working Principle Of A Blower Each blower works differently according to the motor power. 1-Inlet 2-Side Channel 3-Fan 4-Outlet Blowers increase the pressure of the absorbed gas by a series of vortex motions formed by the centrifugal movement of the impeller.
In most cases, a single blower motor is responsible for delivering both hot and cool air, on demand, depending on how the climate controls are set. A blower motor typically consists of a DC motor, housing, and fan cage. 2 Where is a Blower Motor Located? 3 How Does a Blower Motor Work?
Outside causes include the blower motor resistor, fan relay, and climate control switches. If any of those components prevent voltage from reaching the blower motor, it won’t work. If the blower works on high but not on lower speeds, the resistor is sometimes the culprit.
What are the symptoms of a failed blower motor resistor?
Blower motor resistor problems. Problems with a blower motor resistor are common in many cars. The most common symptom of a failed blower motor resistor is when the heater fan only runs at high speed and doesn’t work at low speeds.
What’s the difference between a single speed and variable speed blower motor?
It’s the component that blows cool air through the ducts and into different parts of your home. There are basically two kinds of blower motors: single-speed blower motors and variable-speed blower motors. A single-speed motor can only operate at one speed, while a variable-speed motor can adjust its speed to produce different levels of airflow.