Date March 22, 2018

Request for Proposal: Boiler Replacement at Rock Creek Campus

Addenda # 2

NOTICE TO ALL POTENTIAL RESPONDENTS The Request for Proposals (RFP) is modified as set forth in this Addendum. The original RFP Documents and any previously issued addenda remain in full force and effect, except as modified by this Addendum, which is hereby made part of the RFP. Respondent shall take this Addendum into consideration when preparing and submitting its Proposal.

RFP

Item Section Description of Change

1.5A Specification Change “15 year” to 10-year

1.5B Specification Change “guarantee against any burner failure for 5 years” to 18-month non-prorated warranty on all other components, except ignitor, flame detector and 02 sensor, which shall be conditionally guaranteed for 18-months. The warranty starts from the shipment date.

1.5C Specification Change “3 year” to 2- year

MANDATORY PRE-PROPOSAL

Attendance:

Q: Who picks up the scrap metal? A: Vendor’s responsibility Q: What documentation are required to be provided for the boiler? A: Boiler representation drawings, how high/low pipes are, the support of the pipes Q: Is this the same RFP as the Automotive from a few years back? A: Similar, the bid specifications/scope changed, don’t assume it is the same RFP, please read the scope carefully Q: Any step/ladder to be provided for the pipes? A: Yes, an engineered products to be provided to step over the pipes once installed – Refer to RFP to specs Q: Who oversees PCC control system? A: NCC oversees PCC controls, Honeywell and Distech (Laura heading the controls portion not vendor) Q: Is the vendor required to paint the pipes once installed? A: No, painting of the pipes not required, but we do require vendor to label them Q: Is electrical part of the scope/bid work? A: No, electrical will be done in-house – Laura to set up schedule

Q: What is the anticipated start date? A: Proposed start day is April 20, 2018 Q: Completion date? A: Anticipated September 2018 – may go further depending on what comes up during the project Q: Will PCC offer/provide control valves? A: Yes, strictly control valves. In-house electrician will do perform the line voltage work Q: Any commission expected? A: Yes, commissioning to be done with the commissioning agent prior to the start of the project. Vendor to submit complete report, vendor to provide commissioning assistance. One set of comments back to vendor for commissioning scope Clarification: PCC will hire commissioning agent. Q: Bullet point scope required? A: Yes, not as extensive as a new building, but needed for controls, boilers, functions – piping Q: Straight time/overtime? A: Job is to be bid on straight time, overtime will have to discuss Notes: *Bldg. 2 – drop ceilings *No scope for bldg. 3 *Refer to PCC standards *Once vendor wins bid will get into further details of the scope and expectations *Cannot bid leaving pipe in place, pipes to be removed and new installed *Vendor to be careful with PCC roofs and use necessary tools/equipment to protect the roofs. If vendor damages the roof while working, vendor is responsible for the repairs * Five condensing boilers - Clever Brooks, Hurst boiler leave in as back up Clarification: *replace existing Clever Brooks*

QUESTIONS AND ANSWERS

The following questions and answers are provided as a matter of information to clarify issues raised about the RFP. To the extent that changes to the RFP are required based on the questions received

Question: Do you have an engineer’s estimate or cost range for this project? Answer: We do not have a complete engineer’s estimate or cost range for the scope outlined in this RFP.

Question: I am having trouble finding a prior to bid substitution request form in the bid documents and where should those substitution should be sent? Can I use a standard CSI form and are they emailed to you? Answer: Use a standard form. Question: Do the sub(stitution) request get emailed to you? Answer: Yes. Question: Can you tell me if this is an open public bid, or by invitation only? Answer: Open. Question: Can you please send us the Mandatory Pre Bid Attendee List from this morning’s meeting? Answer: Included in this Addenda. Clarification: The spec language for the Heating boilers calls for O2 Trim and an extended warranty which apply more specifically to the Aerco Benchmark Platinum, their higher end boiler. The engineer confirmed verbally that the college wants the standard Aerco Benchmark boiler, no O2 Trim, and the standard warranty. I’ve highlighted the portions of the spec that may need to be questioned. Highlighted Sections Included Here: 1.5.A Provide 15-year non-prorated warranty on heat exchanger and pressure vessel to include full replacement covering parts relating to condensate corrosion, thermal stress, mechanical defects and mechanical defects or workmanship. 1.5.B. Provide guarantee against any burner failure for 5-years. 1.5.C. Provide 3-year conditional warrantee for the on-board boiler controller. 1.5.D. Provide 2-year warrantee on all other parts and components with the exception of consumables such as flame igniter, flame detector and O2 sensor. 2.2.H Boiler shall be capable of Oxygen trim adjustments throughout the year in order to optimize the fuel air ratio. The boiler shall be able to self-diagnose the Oxygen trim system and recalibrate the oxygen measurement system based on an adjustable schedule. 3.3.A After installation and before start-up thoroughly clean boilers of scale, grease, etc. and boil out in manner and for duration as recommended by manufacturer. Clarification Answer: Refer to The RFP Header of this Addenda #2 for the changes made regarding this clarification request. Substitution Request: Section 23.51.00 Page 1 Paragraph 2.1. Description: Breechings, Chimney, and Stacks. Proposed Substitution: Schebler E-vent Dual Seal

Response to Substitution Request: 235100; 2.1; Breechings, Chimney and Stacks; Schebler. Approved Substitution Request: Section 23.52.00 Page 1 Paragraph 2.1. Description: Manufacturers. Proposed Substitution: RBI Flexcore High-Efficiency Condensing Boiler. Model No. CK3000 Response to Substitution Request: 2235200; 2.2; Condensing Boilers; Flexcore. Rejected Substitution Request: Section 230548 Page 1-9 Paragraph 2.2,2.3,2.4,2.6. Description: Vibration and Seismic Controls. 2.2 Neo+™ Vibration Isolation Pads NP-type 1 2.3 Rectangular Reinforced Concrete Inertia Base CIB –type 2 2.3 1′′ (25 mm) Deflection SFS Seismic Floor Mounted Isolator SFS-SA –type 2 2.3 1′′ (25 mm) Deflection SFS Seismic Floor Mounted Isolator SFS-1A – type 2 2.4 1′′ (25 mm) Deflection SHRB Spring Hanger with Neoprene and Bottom Cup SHRB-SN – type 3 2.6E BulletBrace™ Retrofit Preassembled Adjustable Cable Restraint Kits BBR 2.6E BulletBrace™ BB BBR 2.6E Rod Stiffener for Suspended Components RS1 Proposed Substitution: Vibro-Acoustics Response to Substitution Request: 230548; 2.2, 2.3, 2.4, 2.6; Vibration and Seismic Controls; Vibro-Acoustics. Approved Substitution Request: Section 23.52.00 Page 2 Paragraph 2.2. Description: Condensing Boilers. Proposed Substitution: Raypak Svers H7-3006 Response to Substitution Request: 235200; 2.2; Condensing Boilers; Raypak. Rejected. Question: I would be the Project Manager on the project if JHK is awarded the project, is there any way I could come out and walk the project with my foreman and a few insulation subcontractors to make sure we estimate the project correctly? Answer: A mandatory pre-proposal conference was held on March 6, 2018.

END OF ADDENDUM