CASS_Chiller_QA.docx

1. The work statement says that all recovered refrigerant will be placed into Government furnished containers. Is the contractor responsible for recovering the refrigerant from the old chiller?

No

2. Will we need to remove the Oil from the existing chiller prior pick up by DRMO?

No

3. The work statement says to remove the existing chiller and that it is to be left on site for DRMO pick up. Where will we be permitted to stage the chiller prior to pick up by DRMO? Will we need to provide a crane to load the chiller onto DRMO's truck?

Existing chiller will need to be placed in a storage area no further than 100 yards from project location. Storage area is located on the ramp.

4. Will it be acceptable to install the new chiller directly on the existing concrete paving the same way it is currently mounted?

Chiller shall be installed utilizing the isolators specified in the chiller model number in the item description and fastened to the concrete.

5. Does the new chiller require a communication card, if so what Communication Protocol will be required?

Communication protocol of the chiller is specified in the model number called out in the item description.

6. Can the Government provide a Points List for the information that needs to be viewable on the existing control system?

The government will provide drawings and all technical data for the existing control system after contract award.

7. The existing chiller has a multicolored indicator light mounted at the West end. What is this light's function? Does it need to be re-installed on the new chiller?

This requirement is turn-key. The light shall be installed on the new system if it's utilized by the existing system.

8. The work statement says that the Chiller must be delivered within 30 days after award of contract. The chiller shipment will be contingent on availability and Factory Lead Times at the time the order is placed. Will it be acceptable to adjust this time requirement based on these conditions?

Please provide a realistic delivery schedule. Based on our market research 30-60 days should be sufficient.

9. What percentage is the Glycol content of the chilled water system?

Information on glycol percentage will be released after contract award.

10. Will the Government provide additional Glycol to re-fill the chiller once it has been installed?

Government will provide glycol.

11. Is the existing Chilled Water Pump to be re-used?

Yes

12. Is the existing 4" Chilled Water Supply and Return piping to be re-connected to the new chiller?

The existing 4" water piping shall be utilized. However, modifications shall be made to the existing pipe to connect to the inlet and outlet of the new chiller.

13. Is it okay to re-use the existing 4" Circuit setter when re-piping the new chiller?

If it is fully operational, it may be re-used.

14. Is it the Government's intention to re-use the existing electrical service?

This requirement is turn-key. If existing electrical service is not adequate for the new chiller, the contractor shall provide it.

15. Who is the Allen Bradley controls guy you use for this chiller What is his contact information? Abs and Honeywell won't touch this chiller. I contacted Allen Bradley and they won't even quote this without designed plans.

Controls were built in-house. The government will provide drawings and all technical data for the existing control system after contract award.