Clarifications.pdf

Post-question clarifications:

The following questions arose after the 19 Aug deadline, but due to the nature of the questions, I wanted to post these clarifications. Key take-away, the equipment used as the basis for design are not brand-name requirements for your quote. However, it is the responsibility of the FPE to verify the system quoted/used is complete and functional.

1. Is the electrical contractor required to remove the existing heat detectors, conduit and wiring in the hangar bay?

a. To be demolished by the Contractor performing the fire alarm work.

2. Will Galvanized Rigid Steel Conduit be required for the Foam Releasing System

Devices? If so, will the conduit be required to be painted Red?

a. All conduit, backboxes are required to be NEMA 4 rated per 21 13 25.

3. Based on the responses to the previous questions this is now a design build project. Could you please add the required Design Build Specifications and design submittal requirements (35%, 65%, 95% and 100%)?

a. The fire protection design and specifications provided are a performance based design. The fire suppression contractor must produce their own shop drawings and calculation per the specifications. The equipment used in the design document are for “basis of design”.

4. As indicated in question 30 room A107A is not large enough to hold all the new equipment required. Please provide information on how we are to expand the space to meet the 36” clearance requirements? Or will the room expansion be part of the design build?

a. The equipment shown in the room is to scale. Actual equipment/device dimensions were utilized to layout the room.

5. Question 25. Did the engineer that did the plans we were provided do any flow testing? If so could we please be provided all test results that were used as their bases of design?

a. There is fire pump test reports included in the design package provided to the

Government.

6. The existing Cooper Wheelock Mass Notification Control Panel is currently maxed out at

8 mass notification messages. Options are to replace one of the existing messages with the new required message. Or purchase a 3rd part message generator that won’t damage the existing amplifier-connect it to the auxiliary input, this message will then take priority over all messages and cannot be overridden which goes against the UFC. Most manufacturers of mass notification that meet UFC requirements are this way. Please clarify the preferred solution for this condition?

a. Will review the existing messages to determine if one can be replaced (likely), or if a new panel will be required. Answer will be provided by 1 Aug.

7. References to Questions 14, 15 and 16 indicate the flame detector design is by Det-

Tronics, which is understood; however, are the number of flame detectors shown on the plans the correct number to be included for pricing purposes at have been approved by the Fire Protection Engineer of Record? Can it be assumed this quantity of detectors will meet the requirements for compliance?

a. Yes

8. The response to Questions #22, #32, #34, #48and #51 creates confusion. It is understood this project is a design-bid-build project, not a design-build project. Is the foam and flame detection system shown on the design drawings, which has been developed by the

Fire Protection Engineer of Record, not a complete and accurate design? Can the contractor install the systems as shown on these plans and rely on the work to be performed by the FP DOR to be accurate and correct, or does the Fire Protection

Specialist have the liberty or responsibility for completely redesign the system?

a. The fire protection design and specifications provided are a performance based design. The fire suppression contractor must produce their own shop drawings and calculation per the specifications. The equipment used in the design document are for “basis of design”. The Contractor’s FPE is responsible for verifying that the Contractor’s system is complete and functional.

9. The C-factor to use for existing piping that needs to be re-calculated was not found in

Specification 21 13 13.00 10 or 21 13 25 as indicated in the response to Questions #26 and #28. Is there a specific C-factor to be used of existing piping when performing hydraulic calculations for the new systems, including underground piping back to the existing on-site fire pumps as referenced in Question #3?

a. For the existing sprinkler systems and existing underground piping, the C-factor should be C-100.

10. Can water supply data be provided as referenced in Question #27, so the fire pump sizing can be verified the ensure the fire pump price is correct?

a. There is fire pump test reports included in the design package provided to the

Government

11. The point of Question #30 was to flag that the fire pump room may not be large enough to accommodate the new fire pump and all associated equipment while maintaining the required clearances for conflicts/obstructions. If the fire pump room is not large enough and has to be expanded to accommodate the new fire pump and all associated equipment while maintaining the required clearances for conflicts/obstructions, with the government provide a change order for the room expansion or be willing to grant a waiver to allow the required clearances from conflicts/obstructions?

a. The equipment shown in the room is to scale. Actual equipment/device dimensions were utilized to layout the room

12. Can the Air National Guard FPE provide a response to Question #39 to explain his understanding/expectation of “periodically”? This is being requested so a Fire Protection

Specialists bidding the project, have a clear understanding of the governments expectations.

a. This is up to the contractor with whatever they are comfortable providing.

13. Will the 21 13 25, Section 21 13 25 specification be revised, or will the overhead sprinkler system demand simulation need to be included when performing the acceptance testing of the high expansion foam system?

a. Per discussion with the AFCEC FPE, simulating the sprinkler flow during testing is no longer required when installing high-expansion foam systems utilizing the foam inductor systems.