Angle ball valve having integrated sensor

A vertical fan unit for a heating, ventilation and cooling (HVAC) system, comprising:

• a housing having an air duct and a fan unit and a coil contained within the air duct, a fluid supply and fluid return, and an access panel door that permits access to the fan unit, coil, fluid supply and fluid return;
• an angle ball valve contained within the housing adjacent the coil to reduce air friction within the air duct and connected between the fluid supply and fluid return, the angle ball valve comprising:
• a valve housing having a valve chamber and first and second fluid ports formed within the valve housing and communicating with the valve chamber and defining a fluid path between the first and second fluid ports, said first and second fluid ports disposed substantially normal to each other and oriented along respective first and second longitudinal axes forming a first transverse plane to the valve housing, said valve housing having a closed end opposite the second fluid port;
• first and second annular configured sealing seats formed within the valve housing at the valve chamber and concentric to the second longitudinal axis, the first sealing seat adjacent the closed end of the valve housing and the second sealing seat adjacent the second fluid port;
• a sealing element positioned at each annular configured sealing seat;
• a hollow ball disposed within the valve chamber and in abutment to the sealing elements, said ball having a first surface opening and second surface opening and being rotatable within the valve chamber about an axis of ball rotation that is transverse to first and second longitudinal axes between open and closed ball valve positions, wherein in the open ball valve position, the first surface opening is aligned with the first fluid port and the second surface opening is aligned with the second fluid port to allow fluid flow between the first and second fluid ports through the ball, and in the closed ball valve position fluid flow is prevented between the first and second fluid ports;
• a first sensor orifice formed within the valve housing coaxial with the axis of ball rotation, said ball having a second sensor orifice;
• a temperature sensor received within the first sensor orifice and extending into the second sensor orifice of the ball for sensing the temperature of fluid flowing between the first and second fluid ports when the ball is rotated into the open ball valve position and measuring a temperature discrepancy between the fluid supply and fluid return;
• a stem orifice formed within the valve housing opposite the first sensor port and coaxial with the axis of ball rotation;
• a valve stem received within the stem orifice and operatively connected to the ball, wherein said valve stem is rotatable to rotate the ball into and out of the open and closed ball valve positions;
• and
• a BTU meter mounted at the second fluid port and connected to the temperature sensor.