Addendum_No._2_IFB_07A5861_(Revisions-Questions).pdf

“Provide a safe and reliable transportation network that serves all people and respects the environment.”

CALIFORNIA STATE TRANSPORTATION AGENCY GAVIN NEWSOM, Governor

California Department of Transportation

ADMINISTRATION

DIVISION OF PROCUREMENT AND CONTRACTS

1727 30th STREET, MS 65

SACRAMENTO, CA 95816-7006

PHONE (916) 227-6000

TTY 711

https://dot.ca.gov/programs/procurement-and-contracts/

August 15, 2024 Addendum No. 2

Invitation for Bid (IFB) 07A5861 Compressor Replacement – Los Angeles County

NOTICE TO ALL PROSPECTIVE BIDDERS:

Addendum No. 2 is being issued for the above-referenced IFB. Bids for this work shall be with the full understanding of this Addendum.

The following changes have been made for this IFB:

1. Exhibit A, Scope of Work, item 7.A.2.c is revised to read:

c. One (1) Manufacturer ABB Model #S5H

2. Exhibit A, Scope of Work, item 4 is revised to read:

This Agreement will commence on September 1, 2024 (estimate), or upon approval by Caltrans, whichever is later, and no work shall begin before that time. This Agreement is of no effect unless approved by Caltrans. Contractor shall not receive payment for work performed prior to approval of the Agreement and before receipt of notice to proceed by Caltrans Contract Manager. This Agreement will expire on August 31, 2025 (estimate). The services shall be provided during normal business hours Monday through Friday 8:00 a.m. to 5:00 p.m. On occasion, Contractor may be required to provide services outside of normal business hours, including on weekends, to complete services, as determined in the sole discretion of Caltrans Contract Manager. The parties may amend this Agreement as permitted by law.

The following represents questions submitted for this IFB and the Department’s responses:

Question 1:

Typically a compressor failure is due to the refrigerant system being compromised. Can you please advise the cause of the compressor failures for each machine listed in this IFB?

Answer:

Normal wear and tear; the system operates 24/7.

Question 2:

The scope of work (Exhibit A) states to evacuate all existing R-22 and recharge with existing refrigerant. If the existing refrigerant is found to be contaminated, will that be a change order?

Answer:

If refrigerant is needed it will be purchased by the Caltrans Contract Manager and not the Contractor.

Question 3:

What are the manufacture specifications for refrigerant charge per circuit?

http://www.dot.ca.gov/dpac/

“Provide a safe and reliable transportation network that serves all people and respects the environment.”

Answer:

190 lbs.

Question 4:

How many lbs. per circuit?

Answer:

190 lbs.

Question 5:

The warranty states 1 year for all workmanship on the compressors. As stated, in RFI #1 compressor failures are caused by compromised system components and failures within the refrigerant system. If additional contractor recommendations are not approved, does DoT still expect a 1-year warranty on workmanship for the existing scope of work?

Answer:

Yes.

Question 6:

Can this work be executed during normal business hours or is overtime required?

Answer:

See revision to IFB, above.

Question 7:

Is there an engineer's estimate or budget/range for this project?

Answer:

The estimated contract value is $250,000.00.

Question 8:

May I get a list of the attendees to the pre-bid meeting that took place yesterday?

Answer:

See attached Site Inspection Sign in Sheet.

Question 9:

IFB Requires the use of a crane. a) Is it possible to use the elevator to get compressors on roof level. With protection of flooring?

Answer:

Freight elevator can be used if compressor is under 4,000 lbs. as weight specifications allow and floors are well protected. The weight specification of the elevator is 4,500 lbs.

Question 10:

Description of Work (Replacement of 12 Contractors) c) Manufacture ABB Mod# SHH. Can you please provide correct Pt#? SHH is not correct.

Answer:

See revision to IFB, above.

“Provide a safe and reliable transportation network that serves all people and respects the environment.”

Question 11:

Can you confirm that new suction and discharge valves be install for ea., compressor?

Answer:

New suction and discharge valves will need to be installed.

Question 12:

Can you please confirm that R22 removed as no Acid content?

Answer:

No Acid content.

Question 13:

If additional R22 is required will contractor provide?

Answer:

No.

Question 14:

Please advise if the freight elevator can be used for rigging new and existing compressors.

• If so, can the elevator be reserved for rigging per approved contractor schedule?

• Please provide weight specifications of the existing elevators.

Answer:

See response to Question 9, above.

Question 15:

Please advise if the building air can be down during compressor replacements?

Answer:

This is a 24/7 working facility. The building air Can Not be down. The compressors should be replaced one at a time to be sure there is constant cool air flowing throughout the facility.

Question 16:

Can we deliver our bid through email or do we need to mail hard copies to specified address?

Answer:

Please refer to IFB, Section C, item 23, Bid Submittal.

All other terms and conditions set forth in the IFB remain in full force and effect.

Sincerely, Jennifer Ramos Contract Analyst

Enclosures

ADM-0293 Site Inspection Sign-In Sheet 08-08-2024_07A5861