G-027-230-010 CYPRESS BRANCH PROJECT MANUAL & SCOPE.pdf

DEPARTMENT OF GENERAL SERVICES

PROJECT MANUAL

FOR

WOOD PELLET FURNACE

CYPRESS BRANCH STATE PARK

10701 GALENA ROAD

MILLINGTON, KENT COUNTY, MD 21651

FOR THE

STATE OF MARYLAND DEPARTMENT OF GENERAL SERVICES

PROJECT NO. G-027-230-010

January 6, 2023

Project Cost Classification “A”

CONTRACT DOCUMENT SUBMITTAL

Minority Business Enterprises are Encouraged To Respond to this Solicitation

STATE OF MARYLAND

DEPARTMENT OF NATURAL RESOURCES

ENGINEERING AND CONSTRUCTION DIVISION

TAWES STATE OFFICE BUILDING

580 TAYLOR AVENUE, #D-3

ANNAPOLIS, MD 21401

Department of General Services Board of Public Works Ellington E Churchill, Jr., Secretary Larry Hogan, Governor 301 West Preston Street Peter Franchot, Comptroller Baltimore, Maryland 21201 Derek E. Davis, Treasurer

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I. DETAILED SPECIFICATIONS

A. SCOPE:

1. This project consists of the Contractor providing all labor, equipment, materials, supplies, insurance, etc., necessary to properly install a wood pellet boiler system in the Wick Shop Building, located at 10701 Galena Road, Millington, Maryland, MD 21651.

2. The proposed project shall include but is not limited to the following:

a. Design, build, and install a 50,000 Btu/hr biomass combustion boiler system that utilized wood pellets as fuel coupled with thermal storage, hydronic components, and a biomass storage and conveyance system.

System must be capable of properly heating Zone 4 and 5 of the Shop Building. See attached USDA Draft Memorandum.

NOTE: All quantities and sizes listed above are approximate. The Contractor shall be responsible to obtain his or her own measurements for the project and bidding purposes.

B. QUALIFICATIONS OF THE CONTRACTOR:

1. The Contractor shall be licensed in the State of Maryland as a General Contractor to perform work associated with this project.

2. The Contractor shall have a minimum of three (3) years’ experience performing construction work of a similar nature.

3. Upon request, the Contractor shall supply to the DNR Project Engineer and

DGS Project Manager a list of similar projects, which have been successfully completed by the Contractor.

4. Contractor shall have a HVAC master mechanical license valid in Kent

County, MD to perform specified work.

5. All electrical work shall be done by a master electrician licensed to work in

Kent County, MD.

C. SITE INSPECTION:

1. It is suggested the Contractor visit the job site are encouraged to attend the pre-bid conference meeting and familiarize themselves with all requirements for the project. Failure to attend the meeting, or visit the site, will not relieve the successful bidder from complying with the requirements of these specifications at no additional cost to the State.

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2. Contractor shall investigate and satisfy themselves as to the conditions affecting the work, including but not limited to access and physical conditions at the site, the conformation and conditions of the ground, the character of equipment and facilities needed preliminary to and during execution of the work.

3. No allowance will be made for errors on the Contractor’s part for failure to take into account any conditions or circumstances existing at the site that might affect the specified work.

4. Please coordinate any unscheduled site visits with the facility by calling;

Tuckahoe State Park (410-820-1668)

D. SCHEDULE OF WORK:

1. Work shall be scheduled through and approved by the Project Engineer and the Park Manager. The Contractor shall perform all work Monday through Friday during the normal hours of 8:00 am to 5:00 pm, unless approved by the Project Engineer in writing.

2. The contractor shall notify the Project Engineer seven (7) days prior to the start of work. Contractor shall coordinate with the Project Engineer and the Park Manager the date of preconstruction conference, the work, and any closures required.

3. Use of the premise by the Contractor is to be limited to specified work areas and approved storage areas.

4. Work shall be performed and completed within 90 calendar days of Notice to

Proceed.

E. STANDARDS AND CODES:

1. The Contractor shall comply with OSHA (Occupational Safety and Health

Administration) and MOSHA (Maryland Occupational Safety and Health Administration) regulations regarding construction safety and health standards throughout the duration of this project.

2. All work shall be performed in accordance with applicable code requirements and standards as defined by the Maryland Code Administration “Maryland Building Performance Standards” (MBPS), and the latest editions of the:

- International Building Code (IBC)

- International Residential Code (IRC)

- International Plumbing Code (IPC)

- International Mechanical Code (IMC)

- National Electric Code (NEC)

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- International Energy Conservation Code (IECC)

- Maryland Accessibility Code (MAC)

- National Fire Protection Association 101 Life Safety Code (NFPA)

- International Ground Source Heat Pump Association (IGSHPA)

- Maryland Department of Transportation – State Highway Administration

Standard Specifications for Construction Materials

- National Ready Mix Concrete Association (NRMCA) and any local amendments or modifications to the Standards made by the local jurisdiction which may be applicable to the work.

F. MATERIALS AND SUPPLIES:

1. General:

a. All materials shall be as specified or approved equal by the DNR

Project Engineer and DGS Project Manager.

b. All materials shall be new and where applicable shall be delivered to the job site with labels intact and legible.

c. The Contractor shall be responsible for the coordination, off-loading and proper storage of all materials and supplies up until the time of the final inspection.

d. Materials shall be stored in a safe area, out of the way of traffic.

Storage site location shall be approved by the Project Engineer prior to the storage of any materials on site. All materials and supplies shall be stored up off the ground surface and protected from weather with a waterproof covering. Any special storage instruction required by the material manufacturer shall be performed by the Contractor as if specified herein.

e. Any materials that have not been specifically mentioned, but are necessary for the complete, safe, and satisfactory completion of the project shall be provided by the Contractor as if specified herein.

2. Specific:

a. Pellet Boiler: Shall be a Froling PE1 Pellet Boiler System, distributed by Tarm Biomass or an approved equal. Other manufacturers will be considered if all other criteria are equal or better. System must be able to produce a minimum of 50,000 Btu/hr. System must be capable of being connected to an external silo using a automatic vacuum pellet feed system. Must be capable of being used with a thermal storage system. Boiler must an indoor boiler which meets the emission limits of the EPA 2020 Residential Wood Heater New Source Performance

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Standards (NSPS) – 40 CFR Part 60, Subpart QQQQ. A heat load calculation will be provided by the contractor to justify their proposed boiler selection.

b. Vent Stack: Shall be a double wall chimney pipe that is rated for solid fuel and shall conform to all applicable codes. Size and run shall be determined by the boiler manufacturer. Vent shall not be capped and shall have a tee with drip leg at the bottom of the stack.

c. Bypass: Shall be Accu-Flo Balancing Valve manufactured by Taco or an approved equal. Valve shall be sized based on minimum flow required by the main pump.

d. 3-Way Mixing Valves: Follow boiler manufacturer’s recommendations.

e. Thermal Storage Tank: Shall be a Froling Energy Tank, distributed by Tarm Biomass or an approved equal, with an absolute minimum size of 119 gallons.

f. Pumps: Follow boiler manufacturer’s recommendations. Must have

Variable Frequency Drive incorporated into pump.

g. Hydronic Unit Heaters: Shall be Hydronic Wall and Ceiling Unit Heater, manufactured by Dayton or an approved equal. Sized for a design water supply temperature of no more than 160º F.

h. Control Valves: Shall be sized based on the sizing of the heat emitters.

i. Heat Exchangers: Shall be sized depending on water flows, heat demands of the building, and design supply water temperature of the heat emitters.

j. Temperature Transmitter: Follow boiler manufacturer’s recommendations. Typically, a RTD or Thermistor.

k. Pellet Storage Silo: Shall be a Prairie Pride Polybin, manufactured by PWAire Technologies or an approved equal. Bin should have a 60º cone at bottom, not be taller than 15’, come with a fill pipe and return air pipe for delivery blower truck, have a fill hatch on top for grain auger. Bin should also have a way to visually gauge the amount of pellets in the bin; if bin is clear, then that is suitable. Desired capacity is 5 tons or greater.

G. METHOD OF WORK:

1. General:

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a. All work shall be performed as called for in these written specifications.

b. The Contractor shall coordinate all work with the various trades and suppliers in order to complete the project expeditiously and within the time limits of the contract.

c. All work shall be performed in the best and most professional manner by mechanics skilled in their respective trade.

c. Where applicable, all materials and supplies shall be installed in accordance with the manufacturer’s written instructions as if specified herein.

d. Throughout the project, the Contractor shall schedule and coordinate all work with the Park Manager to minimize disruption to daily operations.

e. The Contractor shall maintain the job site in a safe, neat, and orderly manner throughout the entire project.

f. The Contractor shall be responsible for the removal and disposal of all debris throughout the duration of the project.

g. Upon completion of the project, the Contractor shall legally dispose of all excess materials, debris, etc., and leave the entire site in a broom swept condition.

h. Throughout the duration of the project the Contractor shall take steps to adequately protect State property.

i. Any work that has not been specifically mentioned but is reasonably implied and is necessary for the safe and satisfactory completion of the project, shall be performed by the Contractor as if specified herein.

2. Specific:

a. Design, build, and install a 50,000 Btu/hr biomass combustion boiler system coupled with thermal storage and utilizing wood pellets as fuel.

See desired layout on Drawing A.2

i. System shall be designed, installed, and commissioned per boiler and equipment manufacturer’s instructions.

ii. System shall include the relevant distribution equipment, piping, and hydronic terminal heat distribution equipment.

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iii. Terminal heating equipment will be exclusively suspended fan coil unit heaters.

iv. The heated water produced from the boiler, thermal storage, and heat exchangers will be distributed to each zone’s hydronic heating equipment which will operate on thermostats. Both zones shall be controlled separately.

The boiler system needs to be connected to the water source.

v. Any/All necessary fire protection must be investigated, designed, and installed as part of this project. Scope of this fire protection will be determined during the design process.

vi. System shall meet emissions standards set by the COMAR regulation 26.11.09.

vii. A small, 5-ton capacity, silo is desired for outdoor pellet storage.

a) The wood pellet system must accept bulk delivery of wood pellets by pneumatic blower truck.

b) The pellet storage system must include a pneumatic filling pipe and a vacuum conveyance system which feeds pellets to the boiler as needed without human interaction.

c) A concrete slab reinforced with rebar shall be poured to the minimum specifications of the silo manufacturer’s recommendations.

d) All penetrations through the exterior building wall to allow for feed pipes must be made watertight and has flashing installed as required.

Note: Prior to work on site, contractor shall be responsible for providing design review submittals and shop drawings to DNR A/E for approval.

Note: After installation, the contractor shall provide in person training on the use and proper maintenance of the system.

b. Electrical

i. The contractor shall obtain a third-party electrical inspection from a non-governmental inspection agency approved by the State Fire Marshall’s office. Upon completion of the project, the Contractor shall provide an approved electrical inspection certificate for all electric work performed.

c. Site Cleanup

i. The Contractor shall be responsible to remove all excess materials and debris associated with this project unless otherwise noted in these specifications.

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H. WARRANTY & GUARANTEE:

1. The Contractor shall guarantee in writing his/her work for a period of two (2) years from the date of acceptance.

2. Any defects found within the warranty period shall be repaired or replaced by the

Contractor at no additional cost to the State.

3. Upon completion, the Contractor shall submit to the DNR Project Manager the

Roof manufacturers printed warranty and systems used on the project.

4. Acceptance by the DNR Project Manager of any procedures, materials, workmanship, or final product does not relive the Contractor of his/her contractual requirements.

5. All work is Subject to inspection and approval of the DNR Project Manager and

Facility Manager.

I. GENERAL REQUIREMENTS:

1. The Maryland Dept. of Natural Resources “Instructions to Bidders for Construction Projects and General Conditions of Contract between Owners and Contractors”, revised August 2013, are hereby made part of these specifications.

2. All work shall be coordinated with the Park Manager and DNR Project Manager during the work initiation meeting.

3. Work shall be accomplished during the normal working hours of 8:00 a.m. to 4:30 p.m., Monday through Friday, unless permission is given in writing by the Facility Manager to do otherwise.

4. The completed project is subject to the inspection and approval of the Park

Manager and DNR Project Manager.

5. At the meeting for Substantial Completion, or prior to that time, the Contractor shall submit to the Park Manager and DNR Project Manager, three (3) sets of Close Out Documents:

a. Warranties, extended warranties, etc.

b. Operations and maintenance Manuals required under the contract.

6. The Contractor shall make his or her own arrangements to acquire any temporary utility service that may be required to perform this contract. Any expenses incurred must be paid by the Contractor. This shall include portable toilet facilities.

J. METHOD OF BIDDING:

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viii. See Section V “Alternates and Unit Prices” for additional bidding requirements.

ix. All Bids shall be submitted on the attached “Bid form”.

x. The Project will be awarded to the contractor submitting the lowest Base Bid

Demonstrating the ability to fulfill the requirements for this project.

K. METHOD OF PAYMENT

1. After satisfactory completion and acceptance of the work, the Contractor shall submit an invoice to the DNR Project Manager for processing and payment.

2. Payments shall be made in accordance with General Conditions, Terms and

Conditions.

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II. ALTERNATES AND UNIT PRICES

A. ALTERNATES:

NONE

B. UNIT PRICES:

NONE

III. DRAWINGS & ATTACHMENTS

The following drawings are attached and should be considered part of these specifications as if written herein:

Attachment #1: G-027-230-010 BIOMASS HEATING SYSTEM SPECS &

DRAWINGS