Questions and Answers for Solicitation Number W15QKN-20-Q-5355.pdf

Questions and Answers for Solicitation Number W15QKN-20-Q-5355

Question 1: Can we confirm the existing pad dimensions?

Answer 1: It is my understanding you have arranged a site visit with Area Manager Vincent Giordano, for Wednesday, August 12, 2020, you should be able to confirm the dimensions at that time. I have also attached pictures of the current unit, in case that can provide any assistance.

Question 2: Is it possible for us to schedule our own site visit?

Answer 2: The scheduled site visit date has already passed, but is my understanding you have arranged a site visit with Area Manager Vincent Giordano, for Wednesday, August 12, 2020. If you have not yet set up a site visit, you can call Mr. Giordano at 917-295-8036 to arrange one. However, at this point, we cannot guarantee a visit can happen before the solicitation is due.

Question 3: Are there as built drawings?

Answer 3: No

Question 4: What are the pipe sizes of the chilled water supply and return?

Answer 4: Please see attached pictures for reference.

Question 5: SOW states that missing pipe insulation shall be replaced. What type of insulation? What is the thickness? Is this directive to replace insulation just for outside piping or also for interior piping?

Answer 5: See SOW Section 11.5.5. Contractor shall provide and install new pipe insulation on all areas where insulation was removed.

Question 6: What are the requirements and sequencing for Controls?

Answer 6: To ensure they are compatible and operational with the current BMS system

Question 7: Is there a diagram for controls and piping trains for the chiller?

Answer 7: No

Question 8: Will this be standalone controls?

Answer 8: Compatible and operational with the current BMS system in place.

Question 9: Is this to be tied into an existing BMS or can this run on its own Schneider Application Server?

Answer 9: Tied into an existing BMS

Question 10: Spec Section 1 1.5.6 in SOW states AFOS to determine panel location. Can we please get a distance (footage) from unit to panel location?

a. What is the amperage rating and aic rating of the new 460V/480V panel?

b. From what location is the new 460V/480V panel being powered?

c. What is the approximate distance between the power source and the new 460V/480V panel?

d. What is the approximate distance between the chiller location and the new 460V/480V panel

Answer 10: No, it is dependent on how big the panel is, so actual location has not been determined.

a. A: That would depend on the chiller you decide to install. The panel would need to maintain the chiller and meet federal and state code.

b. A: Inside the adjacent mechanical room

c. A: 5ft

d. A: 10-15ft

Question 11: Is the new chiller voltage to be 460 v 3 phase? The existing chiller is 230 v with a adjacent step down transformer from the 460 feeder. The item # 11.4.6 says to remove the transformer. There is no indication of adding a new transformer.

Answer 11: Correct, that is why we are installing the panel. We want the unit disconnected from the transformer, the transformer properly removed, and the unit connected to the new panel.

Question 12: Item # 11.5.6 Install new 460 / 480 panel. There is no description of this panel and function.

What location will it be mounted at? serving? Fed from?

Answer 12: Placed, powered and fed from the adjacent mechanical room

Question 13: Can the new chiller be fed from the existing 460 feeders to the outdoors transformer adjacent to the chiller pad?

Answer 13: No, we want the transformer removed and a new panel installed

Questions 14: Item # 11.5.7 New chiller panel - what is this panel for, the chiller from York manufacturing is self-contained?

Answer 14:We want the transformer that the current chiller is connected to removed, so the new panel is needed.

Question 15: The chiller we are told is drained in the winter, I assume this is water in the piping then, can it be drained via the connected piping drains to the floor drain in the mech rm.?

Answer 15: If that would serve the same purpose as the current unit, then yes