Carrier LA22RA100 Blower Wheel Els PW 17895 The two-position zone valve utilizes

The two-position zone valve utilizes a hysteresis synchronous motor

While both are thermal safety switches

As an EVSI 12 (EV220B 12) series component

technicians should check the electrical resistance (ohms) while the unit is de-energized

Carrier LA22RA100 Blower Wheel Els PW 17895 The two-position zone valve utilizesThe Carrier LA22RA100 Blower Wheel is a high grade OEM replacement blower wheel engineered for precise air distribution in residential and light commercial furnace systems. Measuring 11 1 8 inches in diameter by 7 1 8 inches in width, this double inlet centrifugal fan wheel features a 1 2 inch bore and is designed for clockwise (CW) rotation (facing the hub). Constructed from corrosion resistant metal alloy, the LA22RA100 replaces several legacy part