3-SOW Chiller Control Board.pdf
PDF 174 KB Posted
- Attached to
- BPO for Repairs/Maintenance of McQuay Chiller
- Solicitation number
- Req #2096819
- Issued by
- Dallas County, Texas
About this file
This is a Scope of Work document issued by Dallas Area Rapid Transit (DART) for the removal and replacement of an electronic control board on a McQuay International chiller located at 4209 Main Street, Dallas, Texas 75226, Second Floor. The project requires the contractor to provide all labor, materials, tools, supervision, equipment, and consumables necessary to complete the work, including removal and proper disposal of the existing control board, furnishing and installation of a new OEM or OEM-compatible control board, verification of wiring and connections, field testing and calibration, integration with building EMS systems if applicable, functional performance testing, and comprehensive project documentation. The work must be completed during normal business hours, with contractors required to provide a minimum of 24 hours advance notice to the DART Facilities Supervisor before mobilization. All work shall be performed by OEM-certified or factory-trained technicians in compliance with applicable federal, state, and local codes, electrical codes, and DART standards.
The contractor shall provide a minimum one-year warranty covering parts and labor for the replacement control board, associated programming, and integration work, with any defects identified during the warranty period to be corrected at no additional cost to DART. Contractors must submit product data and technical cut sheets for the replacement control board, warranty documentation, and an installation schedule identifying proposed start and completion dates. Deliverables include an itemized invoice detailing labor and materials costs and copies of commissioning and startup results with control parameters and setpoints used. The related purchase order is subject to DART's standard Terms and Conditions, with FOB Destination shipping terms required, freight costs included in pricing, Net 30 payment terms, and invoices to be submitted in triplicate to APInvoices@dart.org.
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Other files
| File | Type | Posted |
|---|---|---|
| 1-Purchase Order Terms and Conditions.pdf | ||
| 4-Event Schedule.pdf | ||
| 2-Model Plate Information.pdf |
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Text version
DALLAS AREA RAPID TRANSIT (DART)
SCOPE OF WORK (SOW)
Project: Chiller Electronic Control Board Replacement – McQuay International
Location: 4209 Main Street, Dallas, Texas 75226 – Second Floor
1.0 Purpose
The purpose of this Scope of Work (SOW) is to outline the requirements for the removal and replacement of the electronic control board for the existing McQuay International chiller located on the second floor at 4209 Main Street, Dallas, Texas 75226.
2.0 Equipment Information
Manufacturer Model Serial Voltage Hertz Phase
McQuay International
WGZ070AA27-
ERIO
STNU080700126 460V 60Hz 3-Phase
3.0 Scope of Work
The Contractor shall provide all labor, materials, tools, supervision, equipment, and consumables necessary to complete the replacement of the chiller electronic control board. Work to include but not be limited to:
• Removal and proper disposal of the existing electronic control board in accordance with DART guidelines and applicable regulations.
• Furnishing and installation of a new OEM or OEM-compatible electronic control board suitable for the McQuay International chiller listed above.
• Verification of proper wiring, terminations, and connections, including low-voltage control and communication wiring.
• Field testing, calibration, and startup of the new control board in accordance with manufacturer requirements.
• Integration and verification of signal communication with the building EMS, if applicable.
• Functional performance testing of the chiller under normal operating conditions to confirm proper operation.
• Documentation of completion, including any programming parameters or custom settings applied to the control board.
4.0 Contractor Requirements
• Provide OEM-certified or factory-trained technicians for installation and startup of the new control board.
• Comply with all applicable federal, state, and local codes and regulations, including electrical codes and DART standards.
• Implement lockout/tagout procedures prior to performing any work on energized equipment.
• Verify voltage, phase, and system compatibility prior to energizing the new control board.
• Maintain protection of all existing wiring harnesses, refrigerant piping, and mechanical components during the work.
• Coordinate the work schedule with the DART Facilities Supervisor a minimum of 24 hours in advance.
• Maintain a clean and safe work area at all times and remove all debris generated by the work upon completion.
5.0 Safety & Site Access Requirements
• Work is located within a non-rail, bus operations facility; LRWPP training is not required for this project.
• All personnel must comply with DART safety standards, personal protective equipment (PPE) requirements, and building access protocols.
• Contractor must coordinate site access with the DART Facilities Supervisor and follow any sign-in or security requirements in effect at the facility.
• Lockout/tagout procedures shall be implemented for all energized equipment prior to performing work.
• Work areas shall be properly barricaded or marked to restrict unauthorized access and to protect DART employees and visitors.
6.0 Submittals
• Product data and technical cut sheets for the replacement electronic control board, including electrical and control requirements.
• Warranty documentation for both parts and labor, including terms and conditions.
7.0 Warranty
The Contractor shall provide a minimum one (1) year warranty on parts and labor for the replacement electronic control board. The warranty shall include coverage for the installed control board, associated programming, and integration work performed under this SOW. Any defects in materials or workmanship identified during the warranty period shall be corrected by the Contractor at no additional cost to DART.
8.0 Schedule
The Contractor shall provide an installation schedule identifying the proposed start and completion dates. All work shall be performed during normal business hours unless otherwise approved in advance by the DART Facilities Supervisor. The Contractor shall notify DART a minimum of 24 hours in advance of mobilization to the site.
9.0 Deliverables
• Itemized invoice detailing labor, materials, and any other costs associated with the work.
• Copies of commissioning and startup results, including any control parameters and setpoints used.
10.0 DART Point of Contact
DART Project Manager – Facilities Engineering
Hours: Monday–Friday, 0600–1430
| DALLAS AREA RAPID TRANSIT (DART) |
| SCOPE OF WORK (SOW) |
| Project: Chiller Electronic Control Board Replacement – McQuay International |
| Location: 4209 Main Street, Dallas, Texas 75226 – Second Floor |
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