When designing an HVAC system, remember that... When you design an HVAC system, remember that: 1  All AHU rooms must have a floor drain, as condensation from the air will collect in the unit.  One should provide fresh air to every AHU.
The sales tax in Richmond located in Fort Bend is 8.25% which is above the Texas average of 7.25%. All Fort Bend Sales Tax âº.
Richmond is located near the center of Fort Bend County at (29.580921, -95.763000). Most of the city is situated on the southwest side of the Brazos River, with a small portion (Richmond Landing) on the northeast side, connected by US Highway 90A.