The Lennox 21708 Blower Wheel is an integral component of the heating and cooling system of a home. It is possible to consider it as the core of the air circulation process and the subsequent processes. This wheel is made of high quality material and has a diameter of 10-5/8" and width of 8" and it has 48 blades at an angle. When the motor moves the shaft, these blades can efficiently pull and push air across the ducting systems of your furnace or an air handler. This is a direct drive blower wheel which only implies that the wheel is directly coupled to the motor shaft. It has a 1/2” bore which makes it compatible with different models of Lennox HVAC systems.
How to install an expansion valve for refrigeration?
Thermostatic expansion valves are an integral part of your refrigeration unit. They are responsible for ensuring the right dosage of refrigerant is entering the cooling coil to ensure maximum efficiency in the air conditioning of the system.
These special expansion valves come with a temperature sensor that is mounted at the end of the evaporator coil. They incorporate signals from this sensor to maintain the required temperature of the HVAC system. The thermostatic expansion valve works like a precision device that can regulate the measurements of the liquid refrigerant that flows into the evaporator of your system. This regulation in the flow of the refrigerant is essential to prevent the reverse flow of the refrigerant into the compressor of your system.
Through this mechanism, the thermostatic expansion valve successfully separates the high and low pressure sides of the refrigeration/air conditioning system. The liquid refrigerant enters the expansion ...
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