Chiller Questions-with Answers.docx

1. The attached Statement of Work is marked “DRAFT” on every page. Please confirm whether this is the final, controlling SOW.

· SOW has been updated to reflect final version.

1. Please provide the chiller, compressor and existing VFD information, including manufacturer, model number, serial number, voltage, horsepower, tonnage and available nameplate photographs.

· Photos uploaded

· Manufacturer: Trane

· Model Number: ACRB 1655 EUAB XUUC XNC2 XHHH BREV 1CAC BXXA A1XX XX0X X

· Serial Number : U22E02381

· Voltage: 460/60/3

· Air cooled Chiller

· 165 TON

· See attach photos for more information.

1. Are current fault codes, service records, diagnostic reports or BAS alarm information available?

· Government Response: Not currently. Our technicians just locked out the VFD and is currently running under one circuit(#2).

1. Is CLIN 0001 intended to include the complete purchase, installation, programming and commissioning of a new OEM VFD?

· Government Response: Yes

1. Is CLIN 0001 payable only if diagnostics determine that the VFD requires replacement? If replacement is not required, how will this CLIN be handled?

· Government Response: Contractor will submit their diagnostic report and notify the problem to see what the actual repair needs to be.

1. Does the 17-hour diagnostic limit represent 17 total technician labor-hours, 17 hours per technician or 17 elapsed onsite hours?

· Government: Response: 17 Total Technician Labor Hours

1. Are VFD replacement, programming, startup and commissioning hours excluded from the 17-hour diagnostic limitation?

· Government Response: Yes

1. The solicitation states that the Service Contract Act applies, but the package does not appear to include a wage determination or FAR 52.222-41. Please provide the applicable wage determination or confirm whether an equipment-maintenance exemption applies.

· Government Response: Wage Determination will be added to solicitation.

1. Will the Government permit an equipment inspection before quotations are due? If not, please provide sufficient photographs and equipment data to support firm-fixed pricing.

· Government Response: Contractor will have 17 hours to create a diagnostic report.

1. What identification, badging, escort and installation-access requirements apply to the technicians performing the work?

· Government Response: Technicians must have a valid driver’s license with up-to-date insurance and registration. Technicians cannot have any warrants or have issues passing a background check.

1. Will Government personnel coordinate the equipment shutdown, electrical isolation and facility access required for diagnostics and repairs?

· Government Response: Yes CE Project Manger will coordinate the equipment shutdown and any access necessary for the diagnostic repairs.

1. If an OEM replacement VFD is required but material lead time extends beyond the three-day service window, will the performance schedule be modified accordingly?

· Government Response: Yes

1. Chiller Model and Serial Number Please provide the complete Trane chiller model number and serial number for the unit located at Building 3820.

· Government Response: See questions #2

1. Chiller Type Please confirm whether the Trane unit is a centrifugal chiller, air-cooled chiller, or another type/configuration.

· Government Response: Air Cooled Chiller

1. VFD Quantity and Identification Please confirm how many VFDs are associated with the affected chiller and whether the Government's current concern is limited to one specific VFD. If available, please provide the VFD manufacturer, model number, part number, and/or serial number.

· Government Response: See questions #2 for model number and serial number. There are 2 VFDs associated with the affected chiller and only Circuit 1 VFD is the one specific that’s having problems.

1. Existing VFD Condition / Reported Symptoms Has the Government or its maintenance personnel previously identified any fault codes, alarms, operational symptoms, test results, or other indications suggesting that the VFD may be defective? If so, please provide any available diagnostic information, service reports, alarm history, photographs, or technician notes that may assist with preparation for the service call.

· Government Response: Our Maintenance personnel locked the VFD to only be operating under one Circuit. A proper diagnostic is needed to trouble shoot the VFD.

1. Pricing for VFD Replacement The SOW states that if the VFD is determined to be defective, the contractor is authorized to proceed with its replacement. Please clarify whether offerors are expected to include the anticipated VFD replacement, associated labor, materials, programming, start-up, and commissioning costs in the initial Firm-Fixed-Price quotation, or whether VFD replacement pricing will be addressed after diagnostics confirm that replacement is required.

· Government Response: The VFD pricing will be addressed after the diagnostic report that confirms that the replacement is required.

1. Pricing for Other Repairs Identified During Diagnostics The SOW states that if components other than the VFD are found to be defective, the contractor must provide the Government with a cost/labor estimate and obtain authorization before proceeding. Please confirm whether these potential additional repairs should therefore be excluded from the initial quotation and handled separately through Government authorization or contract modification following diagnostics.

· Government Response: The potential additional repairs should not be excluded from the initial quotation. The additional repairs will just need authorization prior in proceeding forward.

1. Is this VFD for the compressor or the condenser motors?

· It’s for Chiller Circuit 1.