ESBD_370763_1723076164865_HHS0014504-5 Solicitation Addendum 1.pdf

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C:\Users\Fnesbitt01\Pictures\Saved Pictures\HHS Branding\HHS Color Logo.png Effective 07/15/2016 Revised 01/23/2024 Procurement and Contracting Services, 1100 W. 49th Street, Austin, TX 78756 Form

PCS 121

SOLICITATION ADDENDUM ACKNOWLEDGEMENT FORM

Solicitation Due Time PCS Contact Information Description of Addendum THIS ADDENDUM NOW BECOMES A PART OF THE ORIGINAL SOLICITATION RETURN ADDENDUM ACKNOWLEDGMENT FORM AS INSTRUCTED, FAILURE TO DO SO MAY RESULT IN DISQUALIFICATION OF RESPONSE.

1.

Acknowledge receipt of this addendum by signing and returning this addendum with your solicitation response in accordance with the submission options outlined in the solicitation.

2.

If respondent has submitted the response prior to addendum, respondent may email the signed addendum to pcsbids@hhsc.state.tx.us prior to the solicitation due date and time.

9.0.0.2.20101008.1.734229 a.m.

: What is your expected date of completion for replacing the controls on the RO system? The schedule in the IFB lists a start date of August 31, 2024, but does not give a desired completion date.

Answer:. In discussions regarding the amount of work required it was anticipated total completion could take up to 4 weeks. This does not represent 4 weeks without sufficient control to provide RO/DI water. It includes time to complete electrical power modifications for a by-pass during weekends. Solely the controls replacement itself is anticipated to take a weekend.

Question 2: May we use an Allen-Bradley Micro800 PLC in the control system? The Section 7.1 of the IFB document (below) states that the system will use an Allen-Bradley MicroLogix 1500. That controller model is now obsolete. Rockwell Automation (Allen-Bradley) recommends migrating small systems such as this to the Micro800 family of controllers. The next larger, more scalable product line is the CompactLogix, but it is considerably more expensive than the Micro800.

Answer:. I cannot provide a complete answer without review of the number of IO modules in use or needed for the controls. The MicroLogix 1500 is now a discontinued product. The MicroLogix1400 is the closest match to a 1500 which has not been discontinued. The MicroLogix is an older technology line of products. Hence, greater potential to be discontinued in the near future. The Micro family of products are a newer line and more up to date with current technology. Hence, have a lower potential to be discontinued in the near future. The 800 is the base model with limited number of IO module adds. Different 800 line models have different number of IO module adds. The number of items to control determine the number of IOs needed. I have only had a direct discussion with Hyperion during site review visits as to the number of items requiring control for determining the needed IO modules & possible future need to control added components. The short answer is yes the Micro800 line of PLCs or programable logic controllers may be substituted. I cannot say it would be the base 800 model. It could be a Micro 810, 820, 850 depending on the number of needed IOs – aka Input Output.

7 Scope of Work (SOW)

7.1 Specifications

Insert Pricing on Exhibit C- Pricing Sheet Design, program and install a replacement control panel that houses a programmable controller (PLC) and operator interface terminal (OIT). Disassemble the old system, install, and test new system.

Answer:. I do not see this changing as both logic controller lines should take about the same space and can be DIN rail mounted.

Control Panel

• NEMA 4X stainless steel enclosure, approximately 36” h x 30” w x 10” d

• Allen-Bradley Micrologix 1500 PLC Answer: