The bumps are usually accompanied by redness and swelling. Allergic eczema is an allergic skin reaction that produces an itchy, red skin rash. The rash may consist of raised, red bumps that ooze, drain, or crust. Angiomas are common skin growths that can form on most areas of the body.
Blower resistors are resistors which are used to control the fan speed of automotive blowers. The fan speed can be changed either by switching the blower resistor resistance mechanically, using a rotating lever, or electronically by the air conditioning system.
Selection of direct drive fans (those with the motor shaft. connected to the fan wheel or propeller) is nearly the. same as belt drive selection. However, there are two. differences worth noting. Where belt drive fan speed can. be altered by adjusting the motor pulley, direct drive fans. (since they have no pulleys) must use a different method. To adjust a direct drive fanâs speed (also motor. speed) or to provide a means of meeting an exact. performance requirement, a speed control can be. furnished.