Attachment J-01 Revised Summary of Work 07302019.pdf

SCT CHILD CARE FACILITY (SCT CCF) Revised 30 July 2019

REPLACE SPLIT SYSTEM UNITS

SAN DIEGO, CALIFORNIA JCN 1704145

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SECTION 01 11 00 - SUMMARY OF WORK

PART 1 – GENERAL

1.1 SCOPE OF WORK: These Contract Documents cover the requirements of the Federal Aviation Administration (FAA), Western Service Area, also referred to as the Government, for the work associated with the Southern California TRACON Child Care Facility (SCT CCF) Replace Split System Units Project, located at 9175 Kearny Villa Rd, San Diego, CA 92126.

The work is at a child care facility with operation hours from 6am to 6pm Monday thru Friday.

The Contractor must not interfere with or disrupt child care services during the course of construction. Work hours are Friday 6pm to Sunday 12am. HVAC service for the entire facility must be available during child care operation hours. Contractor to provide temporary heating/cooling if system is not restored by Sunday 12am. To limit need for temporary heating/cooling, schedule work for October/early November 2019 or March/April of 2020. Schedule must be approved by COR and facility prior to Notice to Proceed.

1.2 SUMMARY OF WORK: The work includes but is not limited to the following:

A. Remove and Replace HP 1 & 2:

i. Remove all electrical connections to HP 1 & 2. Demolish all conductor back to disconnect switches. Replace existing disconnect switch with new fusible disconnect switch. Existing conduits may be used for new heat pumps if shown to be compatible with new equipment.

ii. Remove all refrigerant lines and valves that serve HP 1 & 2.

iii. Provide new heat pumps 1 and 2. The new heat pumps shall have a minimum capacity of 12 10 tons. Install new refrigerant lines (new unit must use 410a or 134a) as needed to connect the new unit. Units will have the following properties: Crancase heater, defrost controls, 2 stage cooling, anti-cycle timer, coil guard, and high pressure switch. Extend/modify concrete pad as needed to install new heat pump units. Provide all necessary clearances per FAA standards 1217G and 19f. Provide all necessary clearances for standard unit maintenance.

1. Known manufacturers/units that meet specifications include TRANE

TWA180

iv. Provide and pull new 3-phase 3 #10 and 1 #10 THHN / THWN conductor from disconnect switch and terminate to the new heat pumps. Provide new fusable disconnect. Reuse existing conduit as available. Provide new conduit where needed.

v. Provide new refrigerant lines for HP 1 & 2. Insulate new lines.

vi. Provide new control valves and connect to existing VVT system. Test for proper functionality.

B. Remove and Replace AHU 1 & 2:

i. Remove all electrical connections to AHU 1 & 2. Demolish all conductor back to disconnect switches. Replace existing disconnect switch with new fusible disconnect switch. Existing conduits may be used for new air handling units if shown to be compatible.

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ii. Install new minimum 4000 CFM air handling units (2 total) on concrete pad in mechanical room. New units must fit on concrete pad in mechanical room.

Electrical clearances and maintenance spaces must be maintained. The new unit shall have the following features and accessories:

1. 460V/3PH/60Hz.

2. Mixing box

3. TVXs

4. Forward Curved Centrifugal fan

5. 5 HP Motor

6. Fiberglass insulation.

7. 4” formed channel base

8. Hinged doors with lift and turn fasteners.

9. Stainless steel drain pan.

10. Door interlock disconnect switch.

11. VFD motor control.

12. Seismic Restraint

***Known manufacturer with units that meet specifications include Daikin

CAH010GDAM.

iii. Modify/install new ductwork and condensate piping as needed and connect them to the new unit. Return air duct must be connected directly to air handlers.

Reconnect bypass damper to controls system. Insulate new ductwork and condensate piping. Remove and reinstall seismic dampers and fire life safety controls as necessary during installation. Check to make sure fire life safety is properly reinstalled.

iv. Provide and pull new 3-phase 3 #10 and 1 #10 THHN / THWN conductor from existing disconnect and to the new air handling units. Provide new disconnect switch. Reuse/Modify existing conduit as needed to accommodate installation.

v. Provide new control valves and connect to existing VVT system. Test for proper functionality.

C. Test, adjust, and balance HVAC system

D. Option 1

i. Provide new DDC controls for the HVAC system.

1. New control system must be able to control each zone/VVT separately/have a separate set point.

ii. Provide all labor and equipment to install and test new control system.

*Price Option 1 separate from rest of work. FAA may or may not proceed with option depending on pricing and availability of funds.

1.3 CRITICAL FACTORS

A. Should work be required during the facility’s operational hours, all work areas shall be properly cordoned off and permission must be requested from facility maintenance and caretakers at least seven days in advance. Submit requests through FAA COR/RE.

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B. Upon completion of work, the installer will arrange for an inspection to be made by a non-sales technical representative of the equipment manufacturer in order to determine whether or not corrective work will be required before the warranty will be issued. Notify the FAA 72 hours prior to the manufacturer’s final inspection.

1.4 SUBMITTALS

A. Serial Letter Log

1.5 WARRANTY & SPARE PARTS

A. Upon completion of work, contractor shall provide warranty and bond documents for each piece of equipment installed and lists of circumstances and conditions that would affect validity of warranties and bonds.

B. Warranty shall be without monetary limitation in which manufacturer agrees to repair or replace components that fail in materials or workmanship within specified warranty period.

C. Warranty Period: 5 years

D. Contractor shall provide spare AHU filters (4 total) and spare fuses for disconnect switches (4 total).

1.4 INTENT OF CONTRACT DOCUMENTS

A. These Contract Documents (specifications) indicate the work to be performed for the project. All material, labor, equipment, tools, layout, and supervision must be furnished by the Contractor to complete the work and provide complete operating systems. The Contractor is responsible for the supervision, health and safety, inspection, and quality control of its own work, workers, work areas, and lower tiered subcontractors. Work shall be performed to ICC, NFPA, and FAA codes and standards, and manufacturers’ recommendations. All work performed and all materials and equipment used will be subject to approval by the Contracting Officer. This must include, but not be limited to, construction, testing, inspection, scheduling, reporting, and submittals.

i. FAA standard 1217G (electrical) and 19F (Grounding) shall supercede any other codes or recommendations by manufacturer unless otherwise instructed by the FAA.

ii. Refrigerant must be recaptured/recovered and sent to an EPA certified reclaimer. Quantity of refrigerant (by type) transferred for reclamation and/or destruction, the person to whom it was transferred, and the date information must be provided to the FAA.

iii. Follow city of San Diego’s regulations for disposal of C&D waste.

B. Titles: Titles to divisions and sections of the specifications and notes and titles on drawings referring to subcontractors, division of work by trade, or type of work are used for convenience and do not imply any separate contractual arrangements of work assignments. Such separations into titles, divisions, sections, or notes should not be construed to establish limits between the Contractor and its subcontractors.

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C. Reference to known standards within the Contract Documents means the latest edition in effect on the date of solicitation, unless specified otherwise.

D. Where Contract Documents refer to “Related Work in Other Sections” or “Related Requirements”, the Contractor should not consider the list of specification divisions/sections to be all-inclusive. These lists are provided as a convenience for cross-reference and coordination.

E. Order of Preference: Generally, the written word takes precedence over the drawings.

Figures marked on drawings should be followed in preference to scale measurements.

Large scale drawings should govern small scale drawings. The Contractor should not use dimensions scaled from the drawings. All dimensions shown on the drawings must be verified by the Contractor by actual measurements in the field. Any discrepancy between the drawings and specifications and the existing conditions must be referred to the Contracting Officer for resolution before any work affected is performed. The Contractor must compare all drawings and verify the figures before laying out the work and will be responsible for any errors which might have avoided thereby. The drawings provided are existing conditions and should be used for reference only. Drawings may not be accurate and should be verified via site inspection.

1.5 CONTRACT DOCUMENTS

A. Copies of Specifications and Drawings: Two (2) hard copy sets and one (1) electronic set of the Contract Documents will be furnished to the Contractor without charge, with the exception of applicable publications incorporated into the technical specifications by reference.

B. Specification and Drawing Review: The Contractor is responsible for complete knowledge and understanding of the Contract Documents throughout the life of the Contract. The Contractor must check the Contract Documents immediately upon their receipt and promptly notify the Contracting Officer of any discrepancies.

C. Contracting Officer: The Contracting Officer (CO) is the person designated to act on behalf of the Government in the performance of this contract. The Contracting Officer's Representative (COR) is the Contracting Officer’s authorized representative. The COR is the point of contact for all work on site between the Contractor and Government. The Contractor will coordinate all work through the COR, or will keep the COR informed when dealing directly with the Contracting Officer, and the Government will coordinate through the COR to the Contractor, except in case of urgency or emergency.

1.6 MEASUREMENT AND PAYMENT

A. The contract price constitutes full compensation for furnishing all plant, labor, materials, appurtenances, and incidentals, and performing all operations necessary to construct and complete the items in accordance with these Contract Documents performed by the Contractor. Payment for each item will be considered as full compensation, notwithstanding that all features may not be mentioned herein. No separate payment will be made for the work, services, or operations required by the Contractor, as specified in Division 1 General Requirements, to complete the project in accordance with these specifications; all costs thereof will be considered as incidental to the work.

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1.7 CORRESPONDENCE: All correspondence must be addressed and delivered electronically to the Contracting Officer and the COR, and must be serially numbered commencing with number one (1), with no numbers missing or duplicated. All files/documents must be legible. Enclosures attached or transmitted with the correspondence must also be furnished electronically with copy to the COR. Each serial correspondence must include the contract number and project name and must have only one subject. The Contractor must create and maintain a serial letter log that shows the serial letter number, date, topic, and disposition if applicable. The Contractor must submit the updated serial letter log monthly.

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