Attachment 1 MTA HVAC Replacement Supplemental Specifications.pdf

USDA Forest Service Project Specifications

February 29, 2024 MTA HVAC Replacement

SPECIFICATIONS

STATEMENT OF WORK

MTA HVAC REPLACEMENT

PART 1 – GENERAL

1.01 Project Summary

1. This contract involves the supply and installation of three (3) HVAC systems at one location; the Mt. Adams Ranger District on the Gifford Pinchot National Forest (NF). The existing HVAC systems in place will need to be removed and disposed of by the contractor.

2. All materials for this project must be energy efficient. Proposed units must have a minimum HSPF (Heating Seasonal Performance Factor) rating of 10.0 or greater.

Work must comply with all applicable Uniform Plumbing Code (UPC), National Sanitation Foundation (NSF), and other applicable regulations. Provide copies of any tests to the Contracting Officer Representative (COR), including a system test prior to use and acceptance of work.

Base Bid Item Building 1018:

Supply and install complete heat pump split system sized in-kind with existing system, to include (not limited to): heat pump, insulated line set, furnace/air handler with aux/emergency heat strips, condensate pump and associated plumbing as necessary, replacement thermostat, removal, and disposal of existing heat pump system. Supply and install an appropriately sized surge protection device to protect all equipment, as necessary.

Contractor to seal all accessible seams (factory and field made) on furnace/air handler and all associated and accessible ductwork with mastic and/or mastic tape.

Contractor to install new filter rack, in accessible location which provides room for filter change outs *existing filter rack blocked, see pictures for detail.

Heat pump and furnace to be installed in existing location.

Optional Bid Item Building 1019:

Supply and install complete heat pump split system, to include (not limited to): heat pump, insulated line set, furnace/air handler with aux/emergency heat strips, condensate pump and associated plumbing as necessary, replacement thermostat.

Supply and install an appropriately sized surge protection device to protect all equipment, as necessary.

Heat pump unit must be installed, centered, on South side of garage (see photo for detail).

Contractor to seal all accessible seams (factory and field made) on furnace/air handler and all associated and accessible ductwork with mastic and/or mastic tape.

Contractor to install new filter rack horizontally, in accessible location which provides room for filter change outs.

Optional Bid Item Building 1014:

Supply and install complete heat pump split system, to include (not limited to): heat pump, insulated line set, furnace/air handler with aux/emergency heat strips, condensate pump and associated plumbing as necessary, replacement thermostat.

Supply and install an appropriately sized surge protection device to protect all equipment, as necessary.

Heat pump unit must be installed, centered, on South side of garage (see photo for detail).

Contractor to seal all accessible seams (factory and field made) on furnace/air handler and all associated and accessible ductwork with mastic and/or mastic tape.

Contractor to install new filter rack, horizontally, in accessible location which provides room for filter change outs.

The Forest Service is interested in replacing the current systems with new systems that have equal or greater capabilities when compared to the current systems. The brand of systems that are to be provided in this contract, must be manufactured by a familiar brand that is easily serviceable by any local company. The contractor must take the following into consideration when determining the best systems to provide for installation:

Manufacturer warranty.

Parts availability.

Serviceability by local service technicians.

Heating Seasonal Performance Factor (HSPF) rating. (10.0 or greater) Air handler/furnace size, to ensure that the new proposed system can fit in the current available space for the air handler/furnace. *An up flow/downflow retrofit kit is acceptable into existing handler/ductwork.

The heating and cooling system must have the following functional modes: Heat, Cool, Emergency Heat, off.

The fan system must have the following functional modes: Auto, on, off; or similar.

The thermostat system must have 7-day (5+2) programmability and the ability to run off of battery power alone.

The new proposed systems must also be able to connect to the current duct systems, as applicable.

System must use readily available disposable filters of a standard size.

PART 2 – EXECUTION

2.01 Heat Pump Installation

A. The Contractor must be responsible for locating and protecting existing structures and utilities during construction operations. In the event of damage to existing structures or utilities, stop all work associated with the damage, and immediately notify the CO. Repair the damage as directed by the CO at the Contractor’s expense.

B. Notify the COR at least 14 days in advance of any construction operations that will cause disruption or to normal business operations at the District Ranger Station Office.

C. BASE BID: Bldg. 1018. Remove existing furnace and associated equipment.

Recycle as necessary. Install a completely new HVAC system and any associated replacement lines and hardware. Work will include a new programable thermostat.

D. OPTION ITEMS: #1: Bldg. 1019. Remove existing furnace and associated equipment. Recycle as necessary. Install a completely new HVAC system and any associated replacement lines and hardware. Work will include a new programable thermostat. #2: Bldg. 1014. Remove existing furnace and associated equipment.

Recycle as necessary. Install a completely new HVAC system and any associated replacement lines and hardware. Work will include a new programable thermostat

E. Any modification of items, designs, materials, products, or equipment (including Government-Furnished property), made necessary because of substitution, will be the responsibility of the Contractor without adjustment in the contract price or time.

The Contracting Officer Representative’s (COR) approval of any substitute will not affect the Contractor's responsibility for such modification. All substitutions will be requested by the Contractor after the award of the contract has been made. No approvals will be made prior to the award.

F. Equipment supplied under this contract must have the manufacturer’s standard warranties. Warranties on equipment must be provided, in writing, directly to the Government.

G. Submit manufacturer’s product information on all materials being used prior to installation. Allow 14 days for approval.

Include the following information in submittals:

1. Contract Name and Number.

2. Date.

3. Name of Contractor.

4. Name of firm or entity that prepared the submittal.

5. Names of subcontractor, manufacturer, and supplier.

6. Submittal purpose and description.

7. Number and title of Specification Section, with paragraph number and generic name for each of multiple items.

8. Submittal and transmittal distribution record.

9. Other necessary identification.

10. Remarks.

2.02 Job Site Cleaning

The contractor must clean up the job site and remove all old furnace parts from the site to recycle as necessary.

PART 3 – MEASUREMENT AND PAYMENT

3.01 Method of Measurement

The price and payment must constitute full compensation for furnishing and hauling all necessary materials to the project site, for proper disposal of all waste materials, and for furnishing all labor, tools, equipment, and incidentals necessary to complete the project as specified.

3.02 Measurement and Payment

Method of Measurement

A. Install new fan coil unit, heat pump, thermostat, and wiring as needed.

B. Measurement will be a lump sum. Includes removal of existing furnaces, installation of new fan coil unit, heat pump, pad, programable thermostat, heat strips, breakers, filter media cabinet, and systems testing, as applicable to furnished unit.

Basis of Payment

A. Payment will be at the Contract Pay Unit Price for each item as designated below.

B. Payment will be made under:

Pay item Description Pay Unit

0001 Ducted Heat Pump System - Bldg. #1018 LS

0002 Ducted Heat Pump System - Bldg. #1019 LS

0003 Ducted Heat Pump System - Bldg. #1014 LS

END OF SECTION

PART 4 – RESIDENT PHOTOS OF UNITS

Driveway parking available at and adjacent to each building project site.

Building 1018 Southwest Elevation

Existing heat pump on riser, located on West side of building.

Existing riser/stand and concrete pad.

40 amp Fused disconnect.

Square D Panel

Square D Panel served by 200A main disconnect

6 AWG stranded copper THHN Furnace OCP breakers 18/20 and 22/24.

Basement entrance

Furnace/Air handler. Excess materials to be cleared prior to work commencement. Note sheet metal/joist bay return plenum overhead and lack of mastic/sealant.

14” diameter return air plenums.

Condensate pump, plumbed with clear vinyl hose running parallel w/joists through North side rim joist to exterior.

Note: existing filter rack location and prior photo proximity to floor post. (see next photo) Existing filter rack as noted in section C-4.

Building 1019 Southeast Elevation. *40amp service/disconnect will be installed by USFS, Heat

Pump to be installed, centered, on South Side of building

Bldg. 1019 South Elevation and Heat Pump install location.

1019 Furnace 50A and 60A DP Breakers.

1019 Furnace/Handler in central HVAC closet. Return air above, supply ductwork in crawlspace.

30" Door Opening

1019 Furnace data plate.

Heat Pump Location

BLDG. 1014

Bldg. 1014 South Elevation and Heat Pump install location.

1014 Furnace 50A and 60A DP Breakers.

1014 Furnace/Handler in central HVAC closet. Return air above, supply ductwork in crawlspace

30” Door Width

1014 Furnace data plate.