Attch_1_-_Statement_of_Work.pdf

Statement of Work: Replace Four HVAC Units at Kelso Fourplex

NATIONAL PARK SERVICE

Mojave National Preserve

San Bernardino County, California

MOJA – Replace Four HVAC Units at Kelso Fourplex

1. BACKGROUND

The Mojave National Preserve is located between Los Angeles and Las Vegas, south of the Interstate 15 freeway and about 65 east of Barstow CA. The Kelso Fourplex is located in Kelso, California near the Kelso Depot Visitor Center. This project would replace the four (4) existing propane furnaces and four (4) evaporative cooler units with four (4) new 3-ton 16 SEER 100,000 BTU 96% efficient propane furnace with electrical air conditioner. The Preserve is replacing the units due to the reduced maintenance requirements and cooling quality of air conditioner units compared to the existing evaporative coolers.

Installation of four (4) new HVAC units will require removing the four (4) old furnaces and four

(4) evaporative units. The outdoor locations where the evaporative coolers existed will need to be capped and old mounting equipment removed. New 220-volt electrical service will need to be installed to the new HVAC units. Contractor is required to assure units will perform as expected and cool and heat the Kelso Dorms to comfortable levels all year. Kelso, California experiences temperatures in the highs of 120 degrees and lows of 20 degrees Fahrenheit.

2. PROJECT TASKS:

Contractor shall perform the following tasks:

1. Remove four (4) existing evaporative coolers, remove any existing mounting hardware, and associated components.

2. Remove evaporative cooling electrical shutoffs and exterior wiring and conduit. Cap junction boxes with blank plates and provide NPS with removed electrical parts.

3. Cap exterior duct vents where evaporative coolers existed. Assure ducting is capped properly from allowing loss of conditioned air and infiltration of outside pests, air, and debris.

4. Restore exterior siding of building where evaporative coolers and brackets were removed which shall include filling holes in stucco siding, repairing damaged stucco texture, painting areas of discoloration or repair to blend with existing structure, and creating a uniform siding finish.

5. Remove four existing propane furnaces including unneeded accessories and components.

6. Recycle evaporative coolers and gas furnaces according to state laws and guidelines.

7. Replace furnace unit with four new 96% efficient 3-ton liquid propane compatible furnace.

8. Perform vent testing procedures in accordance to American National Standard ANSI

Z21.47 to assure proper venting.

9. Install vent/flue pipe at proper vent size and connectors.

10. Install four (4) air conditioning coils on top of furnaces. Ensure that units are mounted so that propre draining of condensation can occur.

11. Install drain pan, trap, and lines per the manufacturer’s recommended configuration.

12. Install four (4) 16 SEER, 3-ton condenser and appropriate concrete pad. Location of concrete pad shall be defined by contractor and approved by COR.

13. Install new 220-volt service to air condensers. Electrical service lines will be installed to conceal them as much as possible in attic, crawl spaces, and walls.

14. Install copper refrigerant lines from air condensers to air conditioning coils, line sets will be installed to conceal them as much as possible in attic, crawl spaces, and walls.

15. Install duct transition from new HVAC units to existing building ducting.

16. Install new thermostat at existing thermostat location. If existing thermostat wires are incompatible with the new thermostat unit, required wiring will need to be installed and traced through walls for the new thermostat to function as intended by manufacturer.

17. Paint and repair any unfinished wall/ceiling/floor interior/exterior surfaces created by replacing HVAC units this may require caulk, flashing, transitions, or painted wood trim

18. All installation will be in accordance with manufacturer specifications

19. Test newly installed HVAC system by performing manufacture gas pressure test, temperature rise test, A/C leak test, heating and cooling test.

3. PROJECT PRODUCT LIST

Existing HVAC Units and Quantities

1. 4 - Trane TUHMB060 Gas Furnace

2. 2 - Aerocool Trophy Series TH4812C Evaporative Air Cooler

3. 2 - Frigiking FS350A Evaporative Air Cooler

Four (4) new HVAC Units Brand name or equal to the Goodman GCVM970803BN Gas Furnace, Goodman GSXC703610 Air Conditioner Condenser, and Goodman CHPTA3630B4 Evaporative Coil. The units must have, at a minimum, the following salient characteristics

1. 96% Efficient 3-ton 80,000 BTU Furnace Fuel Compatible with Liquid Propane

2. 16 SEER 3-ton Air Conditioning Condenser and Evaporative Coil

3. Energy Star Rating

4. Corrosive resistant cabinet coating

5. Air Conditioning Coil Sized Appropriately and Compatible with Gas Furnace

4. SUBMITTALS

Contractor shall provide the following submittals at the required deadlines after award:

1. Construction schedule detailing mobilization/demobilization dates, dates detailing location and work being accomplished, any potential days where HVAC service may be down, and crew size and makeup. DEADLINE 30 days after reward or before Notice to Proceed is issued.

2. Product submittals of proposed brand and model of Furnace, Air conditioning condenser, and air conditioning coil. DEADLINE submittal will be a requirement of contract solicitation and will be provided before solicitation period ends.

5. PROJECT LOCATION:

Kelso Dorms Located in Kelso, CA Building is a four-unit 3,247 gross square foot structure.

Unit 1: 1200 square feet; 2 Bedroom, 2 bathroom, living area, dining area, and kitchen Unit 2: 500 square feet, 1 Bedroom, 1 bathroom, living area, and kitchen Unit 3: 500 square feet, 1 Bedroom, 1 bathroom, living area, and kitchen Unit 4: 1200 square feet, 2 Bedroom, 2 bathroom, living area, dining area, and kitchen GPS Coordinates: 35.016359, -115.646441 Map on Next Page.

6. CONTRACTOR USE OF PREMISSES

Contractor shall always adhere to the following while working within the Preserve:

Kelso Fourplex

A. General: NOTICE: Project occurs in park housing area. Contractor must be respectful of the tenants of the housing area and confine workspace and areas to not impede on tenants. Noise will be kept at a minimum and access to indoor spaces will be at the request of the contractor.

B. Park Entry: The contractor shall furnish a list of personnel with phone contact information.

C. Site Access: Do not drive vehicles off road or access non-project areas without permission from the contracting officer representative.

D. Park Regulations: Ensure all personnel (contractors, subcontractors, and vendors) entering or working in the park are familiar with and obey all park regulations. Law enforcement rangers will intervene if they perceive any unsafe or unlawful activity

E. Working Hours: Work hours shall be available from 7:00 a.m. to 3:30 p.m. Monday through Friday, excluding government holidays. Work outside regular hours requires approval from the contracting officer

F. When accessing work inside park housing a NPS staff escort will be always onsite.

Contractor shall not access housing units without escort at any time.

G. No Smoking Policy: Smoking is prohibited inside or outside within 25 feet of any buildings in the park. This applies to existing buildings, buildings under construction, and buildings under renovation. Discarding of tobacco products or debris anywhere other than into designated tobacco receptacles is considered littering and subject to fines

H. Staging and Storage: Confine storage of equipment and materials to the staging / lay-down / storage areas identified by the COR or as established at the preconstruction meeting

I. Parking: The contractor shall park vehicles and heavy equipment in designated areas for contractor use or as established at the preconstruction meeting

J. Driveways and Entrances: The contractor shall keep driveways and entrances serving the premises clear and available to the government, government employees, and emergency vehicles always

K. Preservation of Natural Features: Prevent damage to natural surroundings. Restored damaged areas and replace damaged trees, vegetation, and grass at no expense to the government

7. PERIOD OF PERFORMANCE:

All tasks and deliverables for this contract must be completed within 45 of days after notice to proceed. Days listed herein refer to calendar days.

8. COMPLIANCE

While performing work, the contractor shall comply with the latest applicable versions of the following:

• NFPA 101 (National Fire Protection Association's Life Safety Code)

• California Title 24 Building Energy Efficiency Standards

• California Refrigerant Management Program, Air Resources Board

• MUCTD Standards and Policies

• Occupational Safety and Health Administration (OSHA) requirements

• NFPA 58 Petroleum Gas Code

• NEC Code Article 690 with respect to California code

• CCR Title 16 Division 8

Additional Requirements:

1) Installers shall hold current applicable California or Federal licenses.

2) All affected areas must be left in a clean and tidy condition. Any damages to government property will be fixed and repaired at no cost to the government.

3) All new equipment, supplies, products must conform to the manufacturer’s instructions and guidelines.

4) Contractor shall provide one-year parts and labor warrantee.

5) Contractor must be able to respond within 48 hours of notice of HVAC system service request if HVAC system has stopped cooling or heating within the one-year warrantee period.

10. APPENDIX

1. Mechanical Floor Plan for Kelso Fourplex

2. Photos of Existing Evaporative Coolers

1. Mechanical Floor Plan – Kelso Fourplex

2. Photos of Evaporative Coolers

End of Document.