Pre-Bid_RFI_W912L6-17-B-0001_Log_05-11-2017.pdf

Date: RFI No. RFP Reference (Sect/Para/Page)

QUESTION GOVERNMENT RESPONSE

4/27/2017 1 N/A

Does the chilled water system have glycol in it? If so, what type of glycol and how much percentage does it have?

Yes, the chilled water system has propylene glycol in it. It is a 30%, protected to 0° mixture, but has been diluted.

4/27/2017 2 N/A

Are the chilled water pumps able to handle the capacity for this type of Carrier chiller model, 30RAP1156D-06314?

Unknown if pumps can handle new chiller. Current pumps installed:

Aurora centrifugal, No. 04-1069291, Type 341A BF, Size 2.5x3x9, GPM 207, Head feet 70, RPM 1750 / Motor: HP 7.5, RPM1750, 208- 230/460 volt 3ph, Enclosed DP, Frame 213JM

4/27/2017 3 N/A Who is the chemical treatment company that your base uses?

Brainerd Chemical, but we can use anyone.

4/27/2017 4 N/A Is the chilled water system chemical treatment maintained?

Yes, the chilled water system chemical treatment is maintained.

4/27/2017 5 N/A Are there any plans for your system that can be shared with us?

Plans for the system that can be shared - Not Available

4/27/2017 6 N/A Can I come and walk the site at a select scheduled time?

Please contact me at 918-833-7118 and we will arrange a site visit.

4/27/2017 7 N/A

If I cannot come and walk the site, may we have a couple of photos of the chiller and associated piping from the pumps to the chiller?

We will arrange a site visit but if you still need the photos we will work with our internal customer to arrange photos.

5/1/2017 8 N/A Will the water need to be tested and the system balanced for the new pumps and the chiller? YES

Pre-Bid RFI Log for W912L6-17-B-0001 Bldg 316 Chiller, XHZG201501230

5/1/2017 9 N/A

The chiller speccification in the SOW states two 5-hp pumps housed within the chiller and to demo the existing pumps (closed loop). Chiller Pumps are usually not contained within the chiller itself. We are wanting to confirm with the manufacturer if this is feasible. Replacing the pumps and installing the new pumps in its original place would be a significant cost savings.

ORIGINAL PUMPS, CONROLS, AND ALL PIPING TO BE

REPLACED FROM CHILLER TO AHU #1 (NOTE: PUMP SIZE IS

7.5HP, NOT 5HP and Statement of Work will be updated)

5/1/2017 10 N/A Please specifiy if triple duty valves, isolators, or butterfly valves are preferred? BUTTERFLY VALVES

5/1/2017 11 N/A

On the outside area of the chilled water lines how far back do you want replaced and if new shut of valves are in order. Will it be replace what is outside flange to flange? If so on theses matters please specify what type and size

ALL PIPING TO BE REPLACED FOR CHILLED WATER SYSTEM

FROM CHILLER TO AHU #1 LOCATED IN MECH ROOM

5/1/2017 12 N/A

As the manufacturer, Carrier may require they be hired to install the controls and perform the start up.

Or is the base controls contractor to be used? Please provide contact information

MANUFACTURER REQUIRED TO PERFORM STARTUP AND

CONTRACTOR REQUIRED TO INSTALL CONTROLS

5/1/2017 13 N/A

What gpm is requred for the new pumps? Will taco pumps be acceptable? Start-ups will need to be performed for the pumps, but not spceified in the SOW.Can you advise how much of the waterlines are to be replaced? No lineal footage needed, but are we only replacing lines from the chiller to the pumps?

PUMPS ARE SIZED AT 7.5HP FOR ONBOARD PUMP KIT FROM

CARRIER

5/1/2017 14 N/A Are the existing lines to be flushed and cleaned?

ALL LINES TO BE REPLACED FROM CHILLER TO AHU #1

LOCATED IN MECH ROOM

5/1/2017 15 N/A Is water treatment to be included? CONTRACTOR TO PROVIDE

5/1/2017 16 N/A Are the existing lines heat traced?

YES, BUT ALL NEW LINES OUTSIDE BUILDING TO HAVE HEAT

TRACE

5/1/2017 17 N/A Is the new chiller barrel to be heat traced? YES, FROM FACTORY INSTALL

5/1/2017 18 N/A Are the control drives and motor starts a part of the chiller or are bidders to purchase the controls for the pumps separately?

INCLUDED WITH PUMP KIT FROM CARRIER CHILLER CONTROLS

PUMPS

5/1/2017 19 N/A Is there glycol in the existing system? If so what type and water percentage.

See Answer to Question #1

5/1/2017 20 N/A Can you advise how much of the waterlines are to be replaced? No lineal footage needed, but are we only replacing lines from the chiller to the pumps?

ALL CHILLED WATER LINES ARE BEING REPLACED AND OLD

PUMP REMOVED

5/9/2017 21 N/a Can you please confirm the percentage or dollar amount required for the bid guarantee?

Update FAR 52.228-1(c) is updated to reflect The amount of the bid guarantee shall be 20 percent of the bid price or $3,000,000.00, whichever is less. A new solicitation will be released reflecting this information.

5/10/2017 22 N/A

We did receive the 1st amendment which was a new Solicitation. There was no indication that we needed to acknowledge it – so I’m assuming acknowledging it prior to the bid is not necessary? We will, of course, include it on section 19 of form 1442.

The 1st amendment was to update item #13 in the SOW to reflect 7.5HP.

The 2nd amendment was to include FAR 52.228-1(c) to reflect the amount of the bid guarantee shall be 20 percent of the bid price or $3,000,000, whichever is less.

5/10/2017 23 N/A

When submitting our bid, should we only include the 39 pages of the solicitation known as Amendment #1 or should we include the original also but leave it all blank?

Please use the original 40 pg solicitation when submitting your bid – be sure to include in Section 19, that you are acknowledging all amendments, to date.

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