36C25018B0222-00005003.pdf

3131 Newmark Drive Suite 200

Miamisburg, Ohio 45342

937 461 3290 Phone jpa@johnpoe.com

4.20.2018 Addendum No. 2

Construct CLC Single Story Unit 410 West 3rd Street Dayton, Ohio 45428

This Addendum supplements and amends the original Drawings and Specifications for the above referenced project. This Addendum shall be forwarded to all Prime Bidders and all appropriate building code authorities. This Addendum shall be taken into account in the preparation of bids and shall become a part of the Contract Documents.

General

1. Specification Section 26 32 13 – Part 2.1, C.1 and C.3. states: “Power Rating:

Standby” in #1, then “Rated Power: 350kW / 438kVA continuous” in #3. Should this generator be standby rated or continuous rated?

Response: Standby.

2. Specification Section 26 32 13 – Part 2.1, I. states: “Each engine generator specified for parallel operation shall be configured for automatic parallel operation”. Being only one (1) 350kW generator system, can you please clarify whether this generator system should be a parallel operation specification required?

Response: No paralleling required.

3. Specification Section 26 32 13 – Part 2.5, B. 1. states: “The engine and the day tank as shown on the drawings”. We cannot find a day tank on the drawings. Is there one? If so, on which drawing is the day tank found?

Recipient Company 1/1/2002

Response: No day-tank. Sub-base only.

4. Specification Section 26 32 13 – Part 2.5, C. states: “Provide a sub-base mounted fuel oil tank… and shall be UL-2085 listed”. Can you please clarify if the fuel oil tank is supposed to be a sub-base (e.g., positioned below and connected to the generator and generator housing) tank? Also , can you please clarify whether UL-2085 listing for this tanks is required or should it be a UL-142 listed tank (note: a UL-2085 would not be typical for a sub-base diesel fuel tank on a 350kW enclosed generator for outdoor installation in Dayton, OH; also, a UL-2085 listed tank is considerably more expensive tank as compared to the more typical, UL-142 listed diesel fuel oil sub-base tank)?

Response: The tank shall be sub-base (below) and UL-2085 per specifications.

5. Specification Section 26 32 13 – Part 2.5, C. 2. states: “Refer to drawings for capacity (of the fuel oil tank)”. We cannot find the diesel fuel oil tank capacity listed on the drawings. Is it? If so, on which drawing is this tank capacity found?

Response: Refer to previous amendment, 96 hour tank is required.

6. Specification Section 26 32 13 – Part 2.15, A. and C. states: “The engine generator and related equipment should be housed in a an outdoor weatherproof critical grade, walk-in enclosure”. Can you please clarify what is meant by “critical grade”? Also, can you please clarify whether a walk-in enclosure is required (note: for a 350kW generator a walk-in enclosure would not be typical and is considerably more expensive than a standard reach-in enclosure which would be more typical for a 350kW generator)?

Response: Walk-in sound attenuated housing is required per specification.

7. Specification Section 26 32 13 – Part 2.15, C, states: “…sound attenuated (maximum 85dBA at 1525 mm (5 feet) from any side, top and bottom and no more than 75dBA when measured at 15M (50 feet) horizontally…”. Can you please provide the required sound attenuation dBA noise levels when measured at the more common standard of 23 feet or 7 meters?

Response: Bid specification. Proposed housing will be reviewed upon award.

End of Addendum No. 2