INVITATION FOR BID. May 17, Purchase Natural Gas Hot Water Boiler MAWSS Purchasing Department

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1 mawss Buyer II Lisa Russell (251) Office TO INVITATION FOR BID NUMBER SEPARATE SEALED BIDS FOR BIDS WILL BE RECEIVED AT Prospective Bidders IFB INVITATION FOR BID May 17, 2018 Purchase Natural Gas Hot Water Boiler MAWSS Purchasing Department 4725A Moffett Road Mobile. AL BID OPENING DATE June BID OPENING TIME AWARD WILL BE MADE BY MATERIAL DELIVERED TO 10:30 a.m. Central Time Total Cost CC Williams Waste Water Treatment Plant 1600 Yeend Street Mobile. AL or Mail to: MAWSS Purchasing Department PO Box Mobile, AL Mobile Area Water and Sewer System 4725A Moffett Road Mobile, AL PO Box Mobile, AL FOR ADDITIONAL INFORMATION, CONTACT Mike Sims (251) or or Jed Barbour (251) or Sealed bids are to be in the Purchasing Department no later than the time specified in order to be considered. Submissions received after the deadline will not be considered. Envelopes shall bear the name of the supplier, company address and the words "IFB Natural Gas Hot Water Boiler" or "IFB NO QUOTE." Facsimile or s will not be accepted. All bids must be submitted on the attached forms or your bid will be disqualified. Bidder shall furnish all the information required by the solicitation. The bidder's name must be typed or printed on the bid sheet, and signed by the owner or appropriate executive officer of the firm. Bidders must initial any changes or erasures. Bidders should retain a copy of bids for their records. Bidders shall acknowledge receipt of any addendum to this solicitation by signing and returning the addendum or by identifying the addendum number and the date on the bid form. Failure to acknowledge receipt of any addendum by a bidder will result in rejection of the bid if the addendum contains information that substantially changes the requirements. All bids shall be quoted F.O.B. Destination, freight prepaid with no additional charges. Unless otherwise specified in the bid, all prices will be on a firm-fixed price basis and are not subject to adjustments based on costs incurred. MAWSS reserves the right to reject any or all bids submitted, to waive any informality in the bid process, or to terminate the bid process at any time, if deemed by MAWSS to be in the best interest of the Board of Water and Sewer Commissioners. A Purchase Order and this "Invitation for Bid" with "Specifications," "Conditions," "Subcontracting Plan," "Insurance Requirements," "Bid Form," signed by the successful bidder's authorized representative, and all attached drawings and other documents furnished by MAWSS to the bidders with the Invitation in order to illustrate the contract requirements, will constitute a contract for the item to be purchased. BOARD OF WATER AND SEWER COMMISSIONERS Lisa Russell, Buyer II IFB Natural Gas Hot Water Boiler Page 1

2 IFB Natural Gas Hot Water Boiler Conditions The Board of Water and Sewer Commissioners of the City of Mobile will accept bids to Purchase a Hot Water Boiler in the Purchasing Department located at 4725A Moffett Road, Mobile, AL at 10:30 a.m. local time, June 5, Award will be by total cost. The bidder offers and agrees, if this bid is accepted, to furnish the items as defined in the specifications for the total price of this repair. Pricing shall be FOB Mobile, Alabama and is to be delivered to CC Williams Waste Water Treatment Plant (WWTP). The expected length of delivery time is to be stated in bid quote. Bidder understands and agrees that MAWSS reserves the right to reject any or all bids and waive any informalities or irregularities in the bid or in the bidding. Bidder understands that his/her bid shall be good and may not be withdrawn for a period of sixty (60) calendar days after the scheduled closing time for receiving bids. A bidder may not modify its bid after bid opening. Errors in the extension of unit prices stated in a bid or in multiplication, division, addition or subtraction in a bid may be corrected by the Purchasing Buyer prior to award. In such cases, unit prices shall not be changed. It is the responsibility of the bidder to determine prior to the bid opening whether any amendment, additions, deletions or changes of any type have been made to this Invitation for Bid, Terms and Conditions or any of the specifications or bid documents. Bid documents and any amendments made to this bid will be posted on our website at For a goods or services contract which is subject to Alabama's competitive bids laws, the MAWSS employee or consultant handling the contract may award it to a DBE who is also a responsive and responsible bidder and who submits a bid no more than ten percent (10%) greater than that of an apparent low bidder which does not have a place of business in Alabama. Delivery Time ARO (after receipt of order): Payment Terms: Address: Company: Address : City, St., Zip : Phone: Fax: Submitted by: Print Name Title: Signature: Date: IFB Natural Gas Hot Water Boiler Page 2

3 Natural Gas Hot Water Boiler Scope of Work Natural Gas Hot Water Boiler Williams Wastewater Treatment Plant Part SUMMARY 1. work in section consists of furnishing equipment required to boiler. 1.2 REQUIREMENTS 1.3 test and place into satisfactory operation one hot water 1. boiler is intended to fire on natural gas a. unattended. b. 40 to 110 degrees Fahrenheit. a. 1. Action Submittals i. Content: 1,000 BTU/Cu. Ft. (HHV). Ii. re at Gas Train Inlet: 5.5 minimum a. Shop Drawings i. Make, model, and weight of the boiler and burner. Ii. specifications, detailed dimensional d descriptive literature ofthe boiler, burner, controls, train components, and any exceptions to the submittal shall show that all gas fuel train valves and including the burner area designed and recommended by for natural gas service. showing the fuel firing rate at flow, water flow rate, water temperatures and the total connected electrical load. Equipment manufacturers shall provide complete and detailed the installation of the boiler and all components. Any installation requirements or operating which they feel to be critical to the safe and reliable fuel operation of the boiler shall be identified and described in detail. IFB Natural Boiler 3

4 v. Factory finished system. vi. Maintenance space requirements. vii. Complete wiring diagrams and schematics showing terminal identification and all wiring between the boiler controls and all external and internal devices including those wired before delivery of the boiler. viii. Electric motor nameplate data for all drives. ix. Panel elevation drawings showing construction and placement of operator interface devices and other elements. x. Provide two (2) copies of the O&M manual. 2. Informational Submittals a. Test reports. b. Boiler inspection report. c. Special shipping, storage and protection, and handling instructions. d. Manufacturer installation instructions. e. Suggested spare parts list to maintain the equipment in service for a period of 1 year and 5 years. Include a list of special tools required for checking, testing, parts replacement, and maintenance with current price information. f. List special tools, materials, and supplies furnished with equipment for use prior to and during startup and for future maintenance. g. Operation and Maintenance data. 1.4 SHIPPING/STORAGEIINSTALLATION 1. Shipping: a. Ship equipment, material, and spare parts complete except where partial disassembly is required by transportation regulations or for protection of components. b. Pack spare parts in containers bearing labels clearly designating contents and pieces of equipment for which intended. c. Deliver spare parts at same time as pertaining equipment. Deliver to Owner after completion of work. d. Unit to be delivered such that the Contractor can fit through the existing entrance. Should this result in non-standard installation practices, Manufacturer to provide Contractor with installation instructions needed to successfully install the equipment. e. Storage: Equipment provided under this section shall be stored and protected in accordance with the manufacturer's recommendations. IFB Natural Gas Hot Water Boiler Page 4

5 2. Installation: a. MAWSS will be responsible for the installation. 1.5 QUALITY ASSURANCE 1. Provisions: a. Products manufactured within scope of standards published by Underwriters Laboratories, Inc. shall conform to those standards and shall have an applied UL listing mark. b. Considerations given only to products of manufacturers who demonstrate successful experience in manufacture operation, and servicing equipment oftype, size, performance, and reliability equal to that specified. c. Equipment furnished to fit with the space allocated with adequate clearance for proper operation and maintenance. 2. Workmanship and Design: a. All parts of the equipment provided to be amply proportioned for long, continuous and uninterrupted service. Provision to be made for easy lubrication, adjustment, or replacement of all parts. b. All materials used in construction of equipment to be of best quality and entirely suitable in every respect for service required. c. Boiler to meet requirements of American Society of Mechanical Engineers and shall bear ASME stamp. Boiler to be inspected prior to shipment. Two copies of inspection report to be submitted. d. The hot water boiler shall be completely assembled and fire tested at the factory. The complete packaged boiler-burner unit shall meet the latest Underwriter's Laboratories requirements and shall be UL labeled. e. Installed equipment will comply and be acceptable to all state, local, and federal codes and regulations. PART 2 PRODUCTS 2.1 APPROVED MANUFACTURER 1. Hurst Boiler Inc. 2. Cleaver-Brooks. 3. Superior. 4. Or approved-equal IFB Natural Gas Hot Water Boiler Page 5

6 2.2 GAS FIRE BOILERS l. General Boiler Design: a. The boiler shall be a four-pass horizontal fire tube upd hot water boiler. It shall be mounted on a heave steel frame with integral forced draft burner, burner controls, insulated assembly and water trim. jacket, flue damper b. The boiler shall be completely preassembled and fire tested at the unit shall be ready for immediate mounting on concrete foundation and for attachment of water, blowdown, electrical connections. c. The shall a complete package unit. 2. Boiler Shell: vent, and a. The boiler shell must be constructed and hydrostatically tested in accordance with ASME Boiler Code and pressure vessel Code, Section IV. A copy ofthe inspection report shall be furnished to the purchaser. Two lifting eyes shall be on top of boiler. Front and rear doors on the boiler shall be hinged and davited. Doors are to sealed with fiberglass tadpole gaskets and fastened tightly using heavy cap screws that thread into replaceable the formed nuts. Insulation shall be contained in which must swing open for inspection of brick work. boiler tubes shall not include turbulators, appurtenances. or other b. boiler shall outdoor ready, with NEMA 4 enclosures and stainless jacket. c. and rear tube sheets all flues must be fully for inspection and when the are swung The boiler shall be furnished with adequate hand holes to boiler inspection and cleaning. Observation ports for the inspection of flame conditions provided at each end the boiler. d. boiler insulation shall of a 2-inch blanket under a sectional preformed metal insulation must readily removable and capable of being reinstalled if required. e. Metal surfaces concealed by insulation and jacket shall be painted with the acceptable rust-inhibiting, heat-resistant paint before the insulation is applied. The paint filler and enamel customary with the manufacturer. finished with coats f. The shell (top, bottom, and shall constructed of not less than 1/4-inch thick. tube sheets, the combustion be IFB Natural Hot Water Boiler 6

7 shall of plate at 3/8-inch shall provided throughout to withstand design The unit shall in accordance with ASME Code for Low Pressure Heating Boilers and shall bear the ASME label. g. The heater section shall have a cylindrical, all-welded, steel combustion chamber surrounded with water and lined with the acceptable refractory material. heater shall be furnished with connections for emergency re relief valve. A. Burner: a. Capable of burning natural The burner assembly shall be an integral part of boiler. The burner shall readily removable for maintenance. b. All metal burner components in the combustion zone shall be stainless steel. c. Air force combustion shall supplied by a forced draft blower mounted in the front boiler door, above the burner, to eliminate vibration and reduce level. The impeller shall be cast minum, radial blade, carefully balanced, and directly connected to the blower motor shaft. The fan motor starter shall be connected and interlocked with the burner controls so that the fan starts before ignition takes place and until the is extinguished. d. Combustion damper and cam fuel valves be operated by a damper control motor that regulates the fire according to load demand. Potentiometer type position controls shall be provided to regulate operation of the damper control motor. e. The pilot be a premix type fired on natural gas with automatic ignition. An electronic detector shall monitor the pilot so the primary valve cannot open until pilot flame has been established. The pilot train shall indude two manual shutoff valves, solenoid valve, pressure regulator and re gauge. Manual restart shall required in event boiler shutdown to flame failure. An airflow switch be mounted on burner to prevent the energization of main fuel in the event of insufficient combustion air. f. The boiler shall have an type flue constructed of aluminized The damper be controlled from the boiler central panel with required safety controls and shall be as manufactured by a vendor to be identical by boiler manufacturer Natural Hot Water Boiler 7

8 B. Gas Trains: a. Gas trains shall be designed and furnished by the Boiler Manufacturer. The gas train shall be sized by the manufacturer: they shall each include, but not be limited to, the following: b. Each Natural gas train shall be provided with: i. Type 316 stainless steel manual shutoff cock. ii. Gas pressure regulator. iii. Automatically operated main motorized gas valve with proof of closure switch and plugged leakage test connection. The main gas valve(s)shall be wired to close automatically in the event of power failure, flame failure, lower water or any safety shutdown condition. iv. A lubricating 316 stainless steel plug cock or valve shall be provided as a means for the tightness check of the main shutoff valve. v. An additional V306 isolation ball valve shall be furnished at entrance to gas train. vi. Low gas pressure switch with manual reset. vii. High gas pressure switch with manual reset. viii. Manual leak test cock. ix. Manifold gas pressure gauge and gauge cock c. Pilot gas train consisting of: i. Gas cocks. ii. Pilot regulator. iii. Pilot gauge point. iv. Pilot valve. C. Hot Water Boiler Trim: a. The boiler package shall include the following and will be sized as per manufacturer's recommendation. i. Water relief valve of a type and size to comply wit~ ASME Code requirements, and shall be shipped loose. ii. Pressure and Temperature gauges mounted on the boiler with sensing element located adjacent to the hot water outlet. iii. Flue temperature gauge. iv. Boiler drain valve. v. High-pressure shut-off safety switch (manual reset) mounted adjacent to the hot water outlet. lfb Natural Gas Hot Water Boiler Page 8

9 vi. low water shut-off safety switch (manual reset) to prevent boiler operation if boiler water falls below a D. Boiler manufacturer to damper assembly including switch, arms, linkage and as a preassembled unit to mount on flue of boiler to two (open or closed). The assembly will be bolted to boiler. The assembly will by factory to interlock with Controls 1. Controls to include: control. a. A means to operate the boilers locally and through SCADA. b. Complete safety control shall be provided for the burners. Provision shall be made to shut off natural supply to the unit in the event a flame or ignition failure and simultaneously to sound an alarm on control board and to valves. failure shall close the main c. A dedicated burner control with flame safeguard. The controller shall supplied with an to monitor pilot and flame and to programming natural gas, and shutdown to chamber prior to ignition. gas-electric ignition failure. An approved device shall confirm pilot flame is lit before main ignition is permitted to occur. the burner. Manual restart shall shutdown. Burner shutdown due to safety controls shall combustion chamber. either pilot or main flame shall shut down required after flame failure at the end of a normal firing cycle or followed by a post-purge of the d. Complete purging of shall take place on each 2. Control Panel: change-over. a. control panel shall be on the front door of the boiler in a NEMA 1A convenient to The panel shall be rna control signal. controller, indicating lights removable sub-base for metal cabinet will and a cabinet lock. single phase power and 4-20 the boiler flame safeguard switches. Panel shall have a safeguard controller, and terminal blocks. The system shall consist of a computer based boiler controller and solid-state sensors integrated to provide automatic IFB Natural Gas Hot Water Boiler 9

10 burner sequencing, flame supervision, and indications of system status, faults, and self-diagnostics. b. Provide the following front-mounted indicator lights and switches: i. Natural gas indicating light - White. ii. Low water flow indicating light - Red. iii. Flame failure indicating light - Red. iv. Alarm silence pushbutton. v. Low demand indicating light - White. vi. Manual/Remote selector switch. vii. Start pushbutton. viii. Stop pushbutton. c. The hot water boiler control panel shall be equipped to communicate with SCADA via discrete and analog inputs and outputs in the future. Monitoring and control points shall include, but are not limited to: i. Hot water boiler run indication. ii. Hot water boiler in/remote. iii. Outlet valve fully open. iv. Outlet valve fully closed. v. Loss of return water flow. vi. Low water shutoff. vii. Hot water temperature. viii. Hot water boiler SCADA start/stop command. 3. Instrumentation a. Hot water temperature transmitter. b. Water pressure gauge. c. Water high pressure switch. d. Water temperature gauge. e. Water temperature switch. f. Low water cut off. g. Return water flow switch. h. Flue temperature gauge. 4. The above is not intended to completely depict all of the functional requirements ofthe control system provided under this section. The supplier shall provide any and all additional equipment necessary to produce a safe and operable system. IFB Natural Gas Hot Water Boiler Page 10

11 2.4 EQUIPMENT IDENTIFICATION PLATES 1. A 16-gauge stainless steel identification plate shall be securely mounted on the equipment in a readily visible location. The plate shall bear the 1/4-inch die-stamped equipment identification number indicated in this Specification. 2.5 LIFTING LUGS 1. Individual equipment and-or each field disassembled part over 100 pounds in weight shall be provided with lifting lugs. 2.6 ANCHOR BOLT SIZE AND MA TERlAL 1. Anchor Bolts: Type 316 stainless steel, sized by equipment manufacturer. 2.7 FACTORY TESTfNG 1. Manufacturer standard test and ASME boiler inspection. PART 3 EXECUTION 3.1 INSTALLATION 1. MAWSS will be responsible for the installation. 3.2 INSPECTION AND TESTING 1. Provide functional and operational tests. 2. Provide all materials and equipment required. 3. Heating System: 4. Burners: a. Remove equipment and appurtenances from system that may be damaged from test pressures. b. Apply test pressure for two consecutive hours and inspect for leakage; remedy leaks by replacing defective material; use no caulking or chemicals. c. Continue test until all leaks are remedied. a. Adjust burners for optimum performance: Perform combustion efficiency tests and forward copy to Owner. b. Test results to indicate percent carbon dioxide, percent oxygen, stack temperature, and smoke density. c. Notify Engineer in advance of testing so that s/he may witness the tests. 3.2 MANUFACTURER'S SERVICES 1. Manufacturer's technical representative must have a minimum of 5 years of experience on the type and size of equipment specified. 2. Manufacturer's Representative: Present at site or classroom designated by Owner or Engineer, for minimum person-days listed below, travel time excluded: IFB Natural Gas Hot Water Boiler Page 11

12 a. 2 person-days each for installation assistance, inspection, testing, coordination with controls integrator, and completion of Manufacturer's Certificate of Proper Installation. b. 1 person-day each for startup, and pre-startup training. 3.3 WARRANTY 1. A two (2) year warranty shall be provided for all parts and labor to begin when installation, testing, and training are complete. IFB Natural Gas Hot Water Boiler Page 12

13 IFB Natural Gas Hot Water Boiler Bid Sheet Total Cost $ Delivery (ARO): (after receipt of order) Payment Terms Company By Print Name Address City, Phone Fax 5ignature* Date *Authorized Signature: The signer declares under penalty of perjury that she/he is authorized to document and bind the company or organization to the terms of this agreement. this IFB Natural Gas Hot Water Boiler Page 13

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