RESPONSES_-_RFI_Group__12.pdf

RFI Group #12

KTR RFI #

Originating Company

Originator (Full Name) Discipline Full RFI Question

Full RFI Response (Leave Blank)

1 R.W. Warner, Inc. David Dolbow Mechanical Please provide connection/penetration details for 8" Round Duct from the Existing Solar Cavity in Attic

Contractor is to cut 8" holes in the existing metal deck for round duct connections. Round ducts shall be fastened to the underside of the metal deck.

2 R.W. Warner, Inc. David Dolbow Mechanical Drawing M-125 – Processing room 103 – 1 of the 4 CRAC units does not have a designation.

CRAC-08, CRAC-09, CRAC-10,

CRAC-11 serve 103-Processing Room.

3 R.W. Warner, Inc. David Dolbow Mechanical Spec Section 23 52 00 – Heating Boilers 3.4.4 – Joints includes specification for hot water piping / fittings. Allows grooved pipe / fitting joints. Spec Section 23 64 10 – Chilled, Chilled-Hot and Condenser Piping – 2.2.2 – Joints only allows for threaded, flanged and welded joints for steel piping. Please clarify that Grooved joints will be allowed for heating, chilled and critical chilled water systems.

Grooved joints are not allowed for heating, chilled, and critical chilled water systems

4 R.W. Warner, Inc. David Dolbow Mechanical Drawing M-126 – Heating water supply & return branch piping serving FCU's and FPIU's is not identified or sized.

All heating water supply & return branch piping serving the FPIU's and FCU's on sheet M-126 shall be 3/4".

Sheet1