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.
Sponsored Topics. The city of Richmond is the seat of Fort Bend County in the U.S. state of Texas within the HoustonâSugar LandâBaytown metropolitan area. As of the 2000 U.S. Census, the city population was 11,081. Richmond city boundaries are joined on one hand with Sugar Land and with the city of Rosenberg on the other hand.