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.
1 View all Fort Bend County, TX jobs in Richmond, TX-Richmond jobs. 2  Salary Search: Administrative Secretary salaries in Richmond, TX. 3  Related forums: Fort Bend County, TX-Richmond, Texas - -.