Q A 56 - 60.doc

*** CORRECTION TO QUESTION 52:

Q 52. Are there any restrictions around using wireless technology within the Green Building or the Byrne Courthouse? Any restricted wavelengths, poor coverage areas, not allowed at all, etc.?

R 52. No, contractors cannot use wireless technology in the building

Q 56. A contractor is requesting that several ceiling tiles be removed in the corridors on a couple of floors and that a ladder be made available so that they may examine the above ceiling space where ductwork is to be removed and replaced. This will allow them to determine the level of congestion in the above ceiling spaces.

R 56. GSA Field Office personnel will remove the referenced ceiling tiles and take photos of the above ceiling space where ductwork is to be removed and replaced. The photos will be securely posted to the FBO website.

Q 57. The specifications state; “Increase the roofing insulation value from existing conditions, striving toward R50”. Is this correct? If so, are they looking for a total roof composition of R50, including existing lightweight concrete?

R 57. Yes; Yes Q 58. Have the building’s main chilled water and/or heating hot water pumps been equipped with VFD’s?

R 58. The main heating hot water pumps have been equipped with VFDs. The main chilled water pumps are constant volume.

Q 59. The air handling unit configuration for the “Remaining Units” does not list a hot water preheat coil. Is one required?

R 59. Yes, the units that fall into the “Remaining Units” category all require hot water preheat coils.

Q 60. AH-77 is not listed as being Constant Volume. Is this AHU to be VAV?

R 60. Yes.