36C24124B0008 Questions and Answers revision1.pdf

36C24124B0008 518-23-344, Generator Exhaust Stack

Questions and Answers

1. Can the end user provide the model or serial number of the existing generators so the ducting can be adequately sized.

Answer:

Generator Building 19:

Generator #19

Bldg.

Power: 180 kw

Make:

Triton

Model: TP-I160-

T3-UL

For the water tower generator Make and model – please see the attached “Kohler generator.pdf.

Contractor shall verify the info onsite before submitting approval for part and when purchasing parts.

2. Can the end user furnish any as-built drawings electrical plans.

Answer: There aren’t any specific as-builts for these two generators. One line diagram can be provided upon request during submittal phase.

3. Do you have a make and model for the generator needing stacks?

Answer: Please refer to the Answer to Question #1.

4. Are there currently exhaust stacks that need to be removed?

Answer: No, there aren’t any exhaust stacks that need to be removed.

5. Do you have photos of said generators and surrounding areas?

Answer: Please see attached pictures of the two generators and surrounding areas.

6. Can you provide an estimated length of exhaust runs/ piping?

Answer: It is up to the contractor to determine the runs/piping. Mean and method is up to the contractor but shall meet the requirements below.

- D-19 Generator exhaust stack shall be five feet above the adjacent building roof line.

- Water tower generator shall be 10 ft from top of the enclosure, so that the intake and the exhaust are adequately far apart.

6rv1: In the RFI question/response to Question #6, government responded as mean and method up to the contractor. Please note that there are 2 ways to address the D-19 generator. One is going straight up and stabilizing it with wires. The second one is to go horizontally to the building and then up above the roof line. The second method will require building supporting structures including concrete footings and structural steel, which will increase drastically the cost of this project. Please advise.

Answer: Vertical and horizontal exhaust run is acceptable. Guy wire is not acceptable.

Components such as, but not limited to, anchors, braces, hangers, connections and support shall have Professional Engineer (Structural) stamp and approval. Submittals shall include PE approval.

7. Are you allowing site visits?

Answer: One site visit was provided in the solicitation for the date of November 17th at 09:00. No other site visit will be scheduled or allowed.

8. Do you have a drawing of the exhaust needed?

Answer: There is no drawing of a specific exhaust needed. When submitted for approval, it shall meet the requirements as identified in the scope of work.

9. Please provide the information of who currently maintains the generators.

Power up generators (Gemini Electric Inc) were the subcontractors that performed preventive maintenance last fiscal year. New subcontractor hasn’t been identified yet.