Revised_Shenango_Specifications_-_AMENDED_02_August_2016.pdf

SHENANGO RIVER LAKE

REPLACE HVAC SYSTEM AT

RESOURCE MANAGERS OFFICE

1. GENERAL REQUIREMENTS

1.1 GENERAL

The work is located in the Resource Managers Office (RMO) at Shenango River Lake, in the Shenango Recreation Area, in Hermitage, PA.

The RMO is a single story mirrored duplex. The work in each side of the building is analogous. The furnace serving the conference side of the building has been installed in 2014 and does not need replacement. Otherwise, work in both sides of the building consists of the removal of the existing forced air HVAC system, including the outdoor condensing unit, indoor evaporator coil, gas-fired furnace, refrigerant lines, safety disconnect, heating vent pipes, and condensate drain lines. The Contractor shall replace each existing HVAC system with a new forced air HVAC system, which employs a split system consisting of an outdoor heat pump, indoor evaporator coil, integrated natural gas furnace, and interconnecting refrigerant piping and wiring. Indoor and outdoor units shall be of the same manufacturer and designed to be used together in one system. Refrigerant shall be R-410A.

The existing furnaces are located in the laundry/mechanical rooms of the RMO. The Contractor shall remove and replace the outdoor units and the indoor furnace, which shall include: all necessary duct work to adapt new furnace to existing duct work; installation of new indoor evaporator coil and new refrigerant lines with R-410A refrigerant;

installation of new digital programmable thermostat; new safety disconnect switch; new wiring from new outdoor disconnect switch to new outdoor heat pump, and all electrical/electronic controls necessary to complete the installation of the system. The existing indoor evaporator coil, refrigerant lines and outdoor condensing unit are charged with R-22 refrigerant. The existing refrigerant shall be properly captured and disposed.

The Contractor shall perform all work as indicated in the specifications utilizing the best standards of performance and construction for the respective trades. The Contractor shall possess experience installing similar HVAC systems and shall utilize personnel who are thoroughly trained and familiar with the indicated requirements and the methods needed for proper performance of work. The Contractor shall coordinate construction to insure uninterrupted progress and to provide an accurate fit between the work of all trades. The Contractor shall provide all equipment and materials necessary to complete the work as specified. All material provided in the performance of this contract shall be new and unused and meet the requirements of the specifications. The Contractor shall verify dimensions and clearances in the field before beginning work and ordering equipment.

SEE PARAGRAPH “BID SUBMITTAL” FOR INFORMATION THAT MUST BE

SUBMITTED WITH BID.

1.2 SAFETY

All work shall be performed in accordance with the Corps of Engineers Safety Manual EM385-1-1. Latest version is available online at http://www.publications.usace.army.mil/Portals/76/Publications/EngineerManuals/EM_3 85-1-1.pdf

The Contractor shall complete and submit the Accident Prevention Plan (separate attachment) included with this specification. The following specific Personal Protective Equipment shall be required under this contract:

Safety Shoes – All employees engaged in construction operations shall wear safety shoes meeting the requirements of EM 385-1-1, Section 05.E.

Protective Eyewear – All workers on the site shall wear, as a minimum, protective eyewear meeting the requirements of EM 385-1-1, Section 05.A. Additional eye protection may be required in accordance with the requirements of EM 385-1-1, Section 05.B.

Hearing Protection – Hearing protection shall be provided for workers in accordance with EM 385-1-1, Section 05.C.

Head Protection – Head protection shall be provided for workers in accordance with EM 385-1-1, Section 05.D

1.3 QUALITY CONTROL

The quality control system shall consist of plans, procedures, and organization necessary to produce an end product which complies with the contract requirements, covers all construction operations, both onsite and offsite, and be keyed to the proposed construction sequence. The project superintendent will be held responsible for the quality of work and is subject to removal by the Contracting Officer.

The Contractor shall complete and submit the Quality Control Plan (separate attachment) included with this specification.

1.4 PROJECT SUBMITTALS

In addition to the Accident Prevention Plan and Quality Control Plan, the Contractor shall provide the following submittals for Government Approval. All items that will be incorporated into the work shall meet the Buy American Act, FAR 52.225-11. The Government reserves the right to require the Contractor to resubmit any item found not to comply with the contract. This does not relieve the Contractor from the obligation to furnish material conforming to the plans and specifications. It will not prevent the Contracting Officer from requiring removal and replacement of nonconforming material incorporated in the work. The Government has the right to reject defective supplies or services within a reasonable time after delivery by written notification to the Contractor.

The Contractor shall in such event promptly replace, correct, or repair the rejected supplies or services at the Contractor’s expense.

1.4.1 Manufacturer's Literature

For all proposed materials to be furnished under this contract, the Contractor shall furnish manufacturer’s descriptive literature or catalog cuts, illustrations and specifications and other data to show the proposed equipment and materials meet the specified requirements.

The mechanical equipment submittals shall include: marked cut sheets for all proposed equipment with equipment selection clearly shown as well as accessories, thermostat selection, ductwork shop drawings and other appurtenant items related to equipment installation.

1.4.2 Bid Submittal

For evaluation purposes, the bidder shall submit for approval marked manufacturer literature or cut sheets including the manufacturer and model numbers of all equipment proposed to be furnished. All appropriate equipment features, control systems and safety items to be supplied shall be clearly indicated on the submittal.

Information on wiring, conduit, safety disconnect, and other items shall be submitted for approval to the Administrative Contacting Officer (ACO). A copy of all information provided with the bid submittal shall be submitted to the ACO.

1.4.3 Certifications

The equipment shall be furnished with all the manufacturer’s recommended controls and safety features. The equipment shall be assembled and installed in compliance with the manufacturer’s installation instructions and all applicable State and local codes and regulations. Units shall be ETL listed to UL-1995 standard.

1.4.4 Operation And Maintenance Instructions

Upon completion of the work a Service Manual covering the operation and maintenance of equipment shall be provided. The services of a competent technician shall be provided to instruct a representative of the Government in the operation and maintenance of the new HVAC equipment.

1.4.5 Warranty

The Contractor shall provide a one-year service warranty from the date of final acceptance against defects in workmanship. The Manufacturer shall provide their standard warranty for defects in parts and materials beginning on the date of installation.

1.4.6 Verification Of Field Conditions

The Contractor shall verify all dimensions and conditions in the field and shall advise the Contracting Officer of any discrepancy before performing any work.

1.5 COORDINATION MEETING AND POINTS OF CONTACT

Prior to commencement of any work being performed on site, the Contractor shall participate in a teleconference with the Administrative Contacting Officer (ACO) and the Lake Resource Manager.

Shenango River Lake Resource Manager – Mr. John Kolodziejski 724-962-

ACO – Denise Polizzano, Denise.M.Polizzano@usace.army.mil 412-395-

1.6 PROJECT/SITE CONDITIONS

1.6.1. Work Areas

The Contractor shall be fully responsible for determining the methods used to transport materials and equipment to and from the areas as well as the removal of waste materials from such spaces. The Contractor shall ensure that his operations will not interfere with the operation of the project or the duties of project personnel.

1.6.2 Time Of Performance

The Contractor shall confine all operations at the work site between the hours of 7:30 AM and 4:00 PM, Monday through Friday, unless otherwise approved. Work will not be permitted on weekends or Federal holidays unless otherwise approved.

1.6.3 Period of Performance

All work under this contract shall be completed not less than 90 calendar days after receipt of Notice To Proceed.

1.7 PROTECTION OF GOVERNMENT PROPERTY

The Contractor shall protect all government property during the performance of this contract. All damage to existing government property as a result of the Contractor’s work shall be repaired or replaced to the satisfaction of the Contracting Officer.

1.8 PROTECTION OF PERSONNEL

The Contractor shall insure that adequate measures are in place to protect workers, facility operation personnel and the public from injury due to the operations being performed. All protective measures shall be in accordance with EM 385-1-1.

1.9 SECURITY REQUIREMENTS

1.9.1 Access and General Protection and Security Policy and Procedures

The Contractor and all associated subcontractors' employees shall comply with applicable installation, facility, and area commander installation and facility access and local security policies and procedures (provided by the Government Representative). The Contractor shall also provide all information required for background checks to meet installation access requirements to be accomplished by the installation the USACE Security Office. The Contractor workforce must comply with all personal identity verification requirements as directed by DoD, HQDA, and/or local policy. In addition to the changes otherwise authorized by the changes clause of this contract, should the Force Protection Condition (FPCON) at any individual facility or installation change, the Government may require changes in Contractor security matters or processes. The Contractor must submit the full name, Social Security Number, Date of Birth, and Place of Birth for all associated Contractor or subcontractor employees to the USACE Security Specialist Paul M. Surace, 412-395-7162, paul.m.surace@usace.army.mil or Stephen Davidson, 412-395-7504, stephen.davidson@usace.army.mil. The District retains the right to deny any Contractor and subcontractor employee from working on one of its contracts based on final background investigation results.

1.9.2 Access Control

All contract employees, including subcontractor employees who are not in possession of the appropriate security clearance, will be escorted in areas where they may be exposed to classified and/or sensitive materials and/or sensitive or restricted areas.

1.9.3 Instant Verification of Employment Eligibility (E‐Verify)

The Contractor must pre‐screen Candidates using the E‐verify Program (http://www.uscis.gov/e-verify) website to meet the established employment eligibility requirements. The Vendor must ensure that the Candidate has two valid forms of Government issued identification prior to ensure the correct information is entered into the E‐verify system. An initial list of verified/eligible Candidates must be provided to the COR no later than 3 business days after the initial contract award.

1.9.4 Employee Identification and Background Check

The Contractor shall be responsible for furnishing an identification badge/card to each employee prior to the employee working on-site and for requiring each employee engaged on the work to display identification. Identification shall consist of name tags with the name of the Contractor and the employee's name. Additionally, a valid state driver's license or other Government-issued photo identification card is required for positive identification. Each employee will be subject to a background check in accordance with "Homeland Security Presidential Directive 12: Policy for a Common Identification Standard for Federal Employees and Contractors" (HSPD-12). Only those individual employees that were specifically identified and approved will be cleared to work on Government property.

2. MATERIALS

Each major component of equipment shall be furnished with a nameplate containing the manufacturer's name, address, type or style, model or serial number, and catalog number, with ENERGY STAR label as applicable.

2.1 NEW SPLIT SYSTEM HEAT PUMPS

Each unit shall be an air-cooled, split system which employs an outdoor heat pump, a separate indoor unit, and interconnected refrigerant piping. Heat pump shall conform to applicable Underwriters Laboratories (UL) standards including UL 1995. Unit shall be rated in accordance with AHRI 210/240. The heat pump shall be Energy Star rated with minimum SEER of 14 utilizing R-410A refrigerant. Indoor and outdoor unit shall be of the same manufacturer and designed to be used together in one system with the furnace.

Heat pumps shall be equipped with high-efficiency scroll type compressor and high pressure and loss of charge protection. Unit shall be digitally controlled with on-board diagnostics and shall be factor run tested. Fan and condenser motor shall be permanently lubricated and totally enclosed. Outdoor unit shall be equipped with 6 inch snow legs for mounting on existing concrete slab. The heat pump shall be similar or equal to a Lennox Model No. 14HPX-036 and shall match the 3 ton capacity of the evaporative cooling coil.

The indoor cooling coil shall be similar or equal to a Lennox CR33-36B. The electrical requirement for the outdoor unit is 208/230VAC, MCA 18.7 Amps, MOCP 30 Amps.

2.2 FURNACES

The furnace serving the conference room has been replaced in 2014 with a Lennox Model No. EL195DF110XE60C. The Lennox furnace shall remain and the Contractor shall match it with a corresponding Lennox indoor coil and heat pump. Capacity of indoor coil and heat pump shall be 3 tons, similar or equal to Lennox Model No. and CR33-36C and14HPX-036. At the Contractor’s option, the existing furnace may be replaced with a new furnace that is Energy Star rated, meets or exceeds the capacity and performance requirements as the existing furnace and is of the same manufacturer as the new heat pump and the two units are designed to be used together in one system.

New indoor furnace and heat pump serving the other end of the RMO shall be of the same manufacturer and designed to be used together in one system. The system shall consist of a 1-pipe vent configuration and field converted to handle propane gas as the working fuel. Furnace shall be the high efficiency, condensing type in accordance with CSA/AM Z21.47. Furnace shall be downflow and the design shall be certified by the AMERICAN GAS ASSOCIATION LABORATORIES (AGA). Furnace controls shall be provided by the furnace manufacturer as an integral part of the furnace. Electronic controls shall be provided. The controls shall allow for variable speed operation.

The existing natural gas furnace is located in the mechanical room on each side of the building. The existing electrical system is 120/240VAC, 1ph, 60 Hz. The new indoor furnace shall provide a minimum output of 70,000 BTUH and shall be Energy Star rated with an AFUE of 95% or greater. Blower shall be centrifugal type and shall be statically and dynamically balanced. Blower motor shall be variable speed or multi-speed design.

The gas furnaces shall be similar or equal to a Lennox Model No. EL195DF070XE48B and shall be balanced to supply approximately 1,100 CFM at 0.5 in wc. static pressure.

2.3 FLUE AND VENT PIPING

Flue and vent piping material shall be in accordance with manufacturer’s recommendations, ICC IMC and NFPA 54. The Contractor shall provide all the necessary vent piping, flashing and vent caps required to comply with venting requirements. Direct venting shall be used for condensing type boilers. Both the air intake and exhaust vents shall be sized in accordance with manufacturer recommendations.

2.4 AIR FILTERS

Air filters shall be listed in accordance with requirements of UL 900.

2.5 METAL DUCTWORK

All aspects of metal ductwork construction, including all fittings and components, shall comply with SMANCA 1966 unless otherwise specified.

2.6 REFRIGERANT PIPING, VALVES, FITTINGS, AND ACCESSORIES

Refrigerant piping, valves, fittings, and accessories shall be in accordance with ASHRAE 15 & 34 and ASME B31.5. Refrigerant piping, valves, firings, and accessories shall be compatible with the fluids used and capable of withstanding the pressures and temperatures of the service. Valve bodies shall be of brass, bronze, steel, or ductile iron construction and shall be designed, manufactures, and tested specifically for refrigerant service. Necessary supports shall be provided for all equipment, appurtenances, and pipe as required, including frames or supports for compressors, pumps, condensers, and similar items.

2.7 SAFETY SWITCH

New safety disconnect switch for outdoor condensing unit shall comply with NEMA KS 1, heavy-duty type, outdoor rated, NEMA type 3R. Switch shall be of the quick-make, quick-break type. Switch construction shall be such that, when the switch handle in the "ON" position, the cover or door cannot be opened. Cover release device shall be coin-proof and be so constructed that an external tool shall be used to open the cover.

Provision shall be made to lock the handle in the "OFF" position, but the switch shall not be capable of being locked in the "ON" position. Wiring to outdoor condensing unit shall be in flexible metallic liquidtite conduit. All wiring shall be copper, and as recommended by the manufacturer for the proposed equipment.

3. EXECUTION

3.1 GENERAL

The HVAC equipment shall be assembled and installed in compliance with the manufacturer’s installation instructions. Electrical installation shall conform to requirements of the National Electric Code (NFPA 70) latest edition. All wire or cable shall be copper. Equipment shall be located as indicated and in such a manner that working space is available for all necessary servicing, such as a shaft removal, replacing, or adjusting drives, motors, or shaft seals, air filters, access to automatic controls, humidifiers, and lubrication.

New furnace shall be installed at location of existing furnace inside the building. The Contractor shall adapt the new furnace to existing ductwork with new custom made galvanized steel sheet metal plenums and new flexible duct connectors. New ductwork shall be insulated with R-5 insulation. New PVC exhaust vent pipe shall be concentric type, installed to outside wall and terminated in accordance with manufacturer recommendations. New drain lines with trap and cleanout shall be installed.

New outdoor units shall be installed on slab for existing outdoor units. New safety disconnect for the outdoor unit shall be installed to replace the existing safety disconnect.

Existing refrigerant lines shall be removed and disposed of. New refrigerant lines shall be installed through the same spaces as existing with new sealant. The Contractor shall replace the entire copper refrigerant line set with new copper lines, vacuum the system and fill with the recommended amount of refrigerant. Open ends of new refrigerant lines or equipment shall be properly capped or plugged during installation to keep moisture, dirt, or other foreign material out of the system. Piping shall remain capped until installation. All refrigerant in the existing system shall be properly captured in accordance with Federal, State and Local regulations. Flexible elastomeric cellular insulation of minimum 1/2-inch thickness shall be applied to the refrigerant suction line.

A digital programmable thermostat shall be installed at location of originals.

Thermostats shall be compatible with the equipment proposed, and wired in accordance with the manufacturer’s instructions for the particular installation. The Contractor shall perform leak tests and operational test of the new installation as recommended by the manufacturer. Contractor shall provide a minimum of one hour training for all project staff on the operation and maintenance of the equipment and thermostats. Work areas shall be left clear of debris after completion of the work.

3.2 START-UP AND TESTING.

Upon completion and prior to acceptance of the installation, the Contractor shall perform necessary system start-up and operational tests to demonstrate satisfactory functional and operating efficiency. HVAC control systems shall be tested to ensure that control elements are calibrated, adjusted, and in proper working condition. Thermostats shall be programmed in consultation with the Resource Manager.

3.3 CLEANING AND PROTECTING

The contractor shall ensure that the work areas are maintained in a neat and orderly manner. At no time shall the Contractor allow materials to accumulate except as otherwise approved, and all areas shall be maintained clean and free debris.

3.4 DISPOSAL

All materials removed in the performance of this contract and not reused shall become the property of the Contractor and be disposed of offsite in accordance with Federal, State and Local regulations.