5929_All_Questions.pdf

Contractor Questions

Solicitation Number FA8101‐17‐T‐0001: Boiler Removal and Replacement

1 November 2016

1. There is no mention of DDC control Requirements. It does not appear to be connected. Please confirm what the DDC control requirements are.

Stand‐alone controls

2. Can we assume this boiler is standalone not connected to the local DDC control System?

Stand‐alone not connected to the DDC controls.

3. Will any performance testing be required to prove capacity after installation?

Not required. However, need to provide a fully operational system.

4. Will this control require cleaning of the existing closed loop HHW system or existing strainers on the many FCUS in the building?

No.

5. Per the performance work statement:2.2 The Contractor shall provide and Install a fully operating and functioning system at 1,000,000.00 (million) BTU's, assembly, framework, fixture, or apparatus that is complete, finished and ready for use by the Government. The boiler that is being removed is a 1,750,000.00 BTUH boiler. Is there a reason they are downsizing the boiler by nearly

35%?

Request one boiler with 1,500,000 BTUH

6. PWS states "Contractor is to provide 4" gas main" Question: Gas main size into mechanical room is

4", downsizing to 3". Is a 4" still required? Should contractor pipe gas to existing boiler @ pipe header? See attached drawing

Not required. Connect to existing.

7. What is the incoming gas pressure?

35‐40 psi before the regulator.

8. "Contractor is responsible for fully operational and Functioning system" and "Contractor will conduct an operational demonstration of all system components"

Question: If contractor is to provide a fully operational system and all components are included, where is the limit of responsibility? Scope of work is to provide and replace said boiler, what is the condition of existing components? I.E pumps, controls, louvers, etc.?

Contractor only responsible for the boiler.

9. What is the required water temperature for supply and return?

30F delta (temperature rise)

10. Are the motorized louvers operational or do they stay open all of the time?

Operational and if not Government responsibility to repair or replace them.

11. Are there any additional gas regulators in the area affecting the mechanical room that are not visible within the project area?

The government is not aware of any.

12. Does the required QCP need to be approved by the Government?

The QCP must be compliant with the PWS Paragraph 8.1.