A 02 SOW Water Heater Replacement and Boiler Install.pdf

MINNESOTA AIR NATIONAL GUARD

HEADQUARTERS 133RD AIRLIFT WING (AMC)

SAINT PAUL MINNESOTA

CITIZEN AIRMEN STRENGTHENING FREEDOM

08 NOV 2021

STATEMENT OF WORK

1. Project Title: Water Heaters Replacement and Boiler Installation

2. Project Number: QJKL222003

3. Project Location 133RD Airlift Wing Minnesota Air National Guard Base 614 Militia Drive St Paul, MN 55111-4130

4. Description of Work:

This project involves the work as described herein to be accomplished at the above location(s), with all labor, equipment, supplies and materials to be provided by the contractor. All work shall be accomplished under weather and environmental conditions appropriate to the nature of work. All work shall be performed per applicable UFC’s, Minnesota State Building Codes and Standards, EPA and OSHA regulations, 133rd Airlift Wing Contractor Safety Packet, 133rd Airlift Wing Contractor’s Environmental Compliance Guide and any other applicable federal, state, and local government regulations. All materials shall be industry standards. Contractor is responsible for all field measurements. The contractor is responsible for removing all construction waste from the Base in accordance with all applicable laws and regulations. The work shall include, but is not limited to:

B642 Water Heater Replacement

A. Contractor to coordinate:

a. Remove and replace water heater unit with similar or approved equivalent unit in B642 janitor closet adjacent to room 126A. See attached floor plan and picture for location reference and layout.

b. Remove and replace both (2) water heaters on B682 mechanical room (room 138/139) with similar or approved equivalent units. See attached floor plan for reference and layout

c. Existing units on building 682:

1. Rheem/Ruud

Model number: HE80-160N Serial Number:

0807T1758N 0807T1753N

80 gals. Each

d. Existing unit on B642:

1. Bradford White

Model number: M250S6DS-1NCWW Serial number: FC11682094 50 gals.

e. Gas-fired water heaters shall conform to ANSI Z21.10.1/CSA 4.1 when input is 22 KW 75,000 BTU per hour or less or ANSI Z21.10.3/CSA 4.3 for heaters with input greater than 22 KW 75,000 BTU per hour. Provide Energy Star labeled gas storage water heater.

f. Electric type water heaters shall conform to UL 174 with dual heating elements. Each element shall be

4.5 KW. The elements shall be wired so that only one element can operate at a time.

g. Reference attached building floor plans for location.

h. Provide submittal for:

1. Removed materials and equipment to be disposed of off the Air National Guard Base.

Disposal fate (salvaged, recycled or landfilled) must be reported to the Civil Engineering Environmental Manager to include weights and cost.

2. Product data

3. Manufacturer's installation instructions.

4. Manufacturer's operation and maintenance instructions.

i. Provide at least 4 hours (total) of training for owner. Training shall occur over at least 1 day.

1. Furnish the services of competent instructors to give full instruction to the designated

Government personnel in the adjustment, operation, and maintenance, including pertinent safety requirements, of the specified equipment. Instructors shall be thoroughly familiar with all parts of the installation and shall be trained in operating theory as well as practical operation and maintenance work.

2. Instruction shall be given during the first regular work week after the equipment or system has been accepted and turned over to the Government for regular operation.

j. Contractor responsible for all site restoration to original condition to include any wall penetration (interior and exterior), ceiling and ceiling tiles.

B. B687 Boiler Unit Installation

a. New boiler shall be designed for interior installation and must be able to function (“talk”) peer-to-peer with existing boiler.

b. Submittals

1. Removed materials to be disposed of off the Air National Guard Base.

Disposal fate (salvaged, recycled or landfilled) must be reported to the Civil

Engineering Environmental Manager to include weights and cost.

2. Shop drawings

3. Product data:

Boiler trim and control equipment.

Burner and control equipment.

Stack.

Dimensions.

4. Operational test report.

5. Manufacturer's installation instructions.

6. Manufacturer's operation and maintenance instructions.

7. Heat exchanger warranty.

c. Quality Assurance

1. Heat exchanger shall have a 10-year warranty.

2. Boiler shall bear ASME "H" stamp.

3. ASHRAE 90.1 energy efficiency standards.

4. ANSI 221.13 test standard.

d. Warranty

1. Boiler manufacturer shall guarantee in writing equipment to be free of defects for one year after start-up date and to repair or replace at manufacturer's expense any defective parts. Unit shall receive such factory tests as are deemed advisable by the manufacturer to check construction and operation.

2. The pressure vessel shall be guaranteed by the boiler manufacturer against thermal shock for 10 years when utilized in a closed loop hydronic heating system with a maximum temperature differential rating of 170°F. The boiler pressure vessel shall be guaranteed accordingly without a minimum flow rate or return water temperature requirement while fired on natural gas. The boiler shall not require the use of flow switches or other devices to ensure minimum flow.

3. The pressure vessel shall carry a 10-year manufacturer’s warranty against material and worksmanship defects.

4. The heat exchangers shall be guaranteed against flue gas corrosion for a period of 5 years from factory shipment.

5. All parts not covered by the above warranties shall carry a one-year warranty. This shall include all electrical and burner components.

6. Rated for a maximum working pressure of 160 PSI, with a relief valve setting of 60 PSI

7. Minimum efficiency on Natural Gas of 82% at full fire at 100 F return water temperatures.

e. Products

1. Existing boiler:

Thermal Solution Model number: EVACA1500BN1-UAE

2. Aditional new boiler must be incorporated into base building automation system DDC Approved installation by authorized contractor to service and install Schneider

Electric EcoStruxure systems.

Existing DDC requirements

New automation system to be an extension of existing Base-wide EcoStruxure Building Automation System.

A new color graphic monitor screen will be added for each new system. All new color graphic screens shall conform to the existing graphics standards.

The existing Schneider Electric EcoStruxure software tools shall be used to create all new graphics.

All new automation alarms must be processed identically to the existing alarms, including creation of alarms, acknowledgement of alarms and viewing of alarms. The existing Schneider Electric EcoStruxure software tools shall be used to create all new alarms.

All new Trends and Logs must be processed identically to the existing trends and alarms, including creation and viewing of trends. The existing Schneider Electric EcoStruxure software tools shall be used to create all new trends.

All new Schedules must be processed identically to the existing schedules, including creation; adjusting and viewing of schedules. The existing Schneider Electric EcoStruxure software tools shall be used to create all new schedules.

All new control wiring/piping schematics to be added to owner’s existing control schematic catalogs. Format and indexing to match existing.

All new control logic diagrams to be added to owner’s existing control logic diagram catalogs. Format and indexing to match existing.

All new Schneider Electric EcoStruxure MPX controllers shall be connected to owners existing Ethernet LAN.

3. Reference drawings attached. Sheets M6.02 and M6.04

4. Capacity:

No less than 1,500 MBH, but no greater than 2,000 MBH

5. Burner:

Gas fired.

Sealed combustion chamber.

Flame rectification probe.

93% minimum thermal efficiency.

6. Trim:

60# ASME pressure relief valve.

Inlet and outlet temperature gages.

Air pressure switch.

Drain valve.

High temperature limit switch.

(2) Low water level cutoff switches, (1) shall be a manual reset.

7. Controls:

Boiler controls shall be provided by controls contractor.

Control panel shall be unit mounted.

BACnet compatible - tie into existing Controls system.

Single point electrical connection.

120 Volt.

Low voltage transformer.

Emergency shutdown switch.

Module boiler firing control for multiple boiler installations by boiler Manufacturers controls.

Digital display and setpoints:

Water inlet temperature.

Water outlet temperature.

8. Indicating lights:

Main power Prepurge.

Trial for ignition.

Flame failure.

Low air.

Burner staging.

9. Safety controls:

Operating Temperature Controller for automatic start and stop.

High Limit Temperature Controller with manual reset.

One Low Water Cutoff Probe in boiler shell.

Air Safety Switch to prevent operation unless sufficient combustion air is assured.

Flame detector to prove combustion

10. Alarms:

High temperature.

Low water.

11. Main Fuel Train Components A factory mounted main gas train shall be supplied. The gas train shall be fully assembled, wired, and installed on the boiler and shall comply with CSD-1 code.

Compliance with other codes is available upon request. The maximum pressure rating of the components shall not be less than one psi. The gas train shall consist of at least two manual shutoff valves, one gas pressure regulator, one automatic safety shutoff valve with prove of closure, one flow control valve, one high gas pressure switch, and one low gas pressure switch. The automatic safety shutoff valve and flow control valve may be the same valve. A pilot gas train, when supplied, shall comply with the same code and maximum gas pressure rating as the main gas train.

2# step down regulator shall be supplied by boiler manufacturer and mounted at least 10 feet from boiler. Regulator must maintain a maximum of 28"wc and a minimum of 14"wc.

Vent lines on regulator shall be brazed, and sized at least the size of the regulator or greater.

Vent lines off of regulator must be installed by contractor to all local and federal codes and requirements.

Vent lines shall be increased in size to the next nominal size after each 10 equivalent foot increments.

Vent lines shall not be located at any point lower than the regulator's vent line opening.

12. Venting:

The air intake connection shall be provided with a flexible rubber coupling. The connection size shall be a minimum of 12" ID diameter PVC pipe size for venting runs up to 50' in length. The connection to the boiler's combustion air connection shall not be designed to support any external mechanical load from the combustion air system.

The Forced Draft Combustion Boiler shall be UL approved as a Direct Vent Boiler.

The boiler will require a stack utilizing CAT IV - AL-29-4C or equivalent, and be approved / accepted by the manufacturer. The boiler can draw combustion air from ducted outside air using Schedule 40 PVC or equivalent. The boiler shall be capable of operating with an exhaust draft not exceeding -0.04" wc and a combined air intake venting and exhaust venting pressure drop not exceeding 0.40" wc. It shall be UL listed to at least a 40"WC pressure rating. Additionally, ALL of the exposed to the outside of the building conditions outer jacket chimney outside the building shall be at least 304 SS. All outer jacket chimney inside the building can be of an aluminized metal type or equal.

All inner wall chimney shall be CAT IV type, to manufacturers requirements.

All horizontal stack shall pitch back to the boilers at least ¼" per linear exhaust stack feet.

13. A condensate drain connection shall be provided in the exhaust outlet. A condensate drain kit shall be provided to collect and drain the flue gas condensate. Condensate piping shall be galvanized or stainless steel.

14. Manufacturers:

Thermal Solutions EVA-1500.

Thermal Solutions EVA-2000.

Approved equivalent.

f. Installation

1. Install in accordance with manufacturer's installation instructions.

2. Install piping as not to place strain on the equipment.

3. Assemble unit sections and parts shipped loose or unassembled for shipment purposes.

Follow manufacturer's installation recommendations and instructions.

4. Install electrical control items furnished by manufacturer per wiring diagram provided by manufacturer.

5. Complete water piping installation as required by manufacturer for operation of system.

6. Provide air intake and exhaust piping, size and type as recommended by the manufacturer.

7. Provide boiler manufacturer recommended manifold pipe and fittings from each boiler to nearest floor drain or as indicated.

g. Operational Test

1. Operate each boiler to insure that necessary adjustments have been made.

2. Provide testing equipment required to perform tests.

h. Owner Instruction

1. Provide training for owner. Training shall occur over at least 1 days.

Conduct a training course for the operating staff as designated by the Contracting Officer. The training period shall consist of at least 4 hours of normal working time and shall start after the system is functionally completed but prior to final acceptance tests.

The field instructions shall cover all of the items contained in the approved operation and maintenance manuals, as well as demonstrations of routine maintenance operations and boiler safety devices.

2. Two factory startups are required - one upon commissioning, and the second prior to the end of December.

i. Contractor responsible for all site restoration to original condition to include any wall penetration (interior and exterior), ceiling and ceiling tiles.

C. Reference

a. 2020 Minnesota Mechanical Code

b. International Code Council™ International Mechanical Code©.

c. Unified Facilities Criteria (UFC) https://www.wbdg.org/ffc/dod/unified-facilities-criteria-ufc

i. UFC 3-410-01, Heating Ventilating and Air Conditioning Systems

ii. UFC 3-410-02, Direct Digital Control for HVAC and Other Building Control Systems

iii. UFC 1-200-01, DoD Building Code

d. National Fire Protection Association (NFPA)

i. NFPA 70

ii. NFPA 31

iii. NFPA 85

iv. NFPA 211

e. American Society of Mechanical Engineers (ASME)

i. Boiler and Pressure Vessel Code (BPVC)

ii. CSD-1, Controls and Safety Devices for Automatically Fired Boilers

f. Air National Guard Sustainable Design Policy

g. Energy Policy Act of 2005 (EPAct 2005)

Warranty:

All materials shall be warranted to be in compliance with this statement of work and to the highest industry standards. Any property damaged by the contractor will be repaired or replaced by the contractor at no additional cost to the ANG.

6. Special Requirements:

a. Bidders to provide itemized prices.

b. All work to be coordinated with ANG Civil Engineering to comply with work schedule.

c. Contractor responsible for field verifications and locations.

d. All paints require a submittal to include 8-1/2 x 11 draw downs and SDS information.

e. Comply with the 133rd Airlift Wing Contractor’s Environmental Compliance Guide

f. All shop drawings to be reviewed and approved by ANG-CE.

g. Contractor responsible for properly disposing of removed/waste materials off of the Air National Guard Base.

h. Disposal fate (salvaged, recycled or landfilled) must be reported to the Civil Engineering Environmental

Manager to include weights and cost.

i. Work is to be completed within the stated Performance Period provided by the Contracting Office.

j. Contractor is responsible for any & all means to accomplish project.

k. Worksite shall be left in a neat, orderly manner at the close of each work day. Materials and workmanship shall, at all times, be subject to inspection by the owner’s designated representative. Hazardous materials must be handled and stored in accordance with all laws and regulations.

l. Contractors are to complete required Flightline Safety, Air Force Anti-Terrorism Force Protection (ATFP).

m. Contractors are to complete required Operational Security (OPSEC) Awareness for Military Members, DOD

Employees and Contractors https://securityawareness.usalearning.gov/opsec/index.htm Training can be conducted on any device 30 min Course/Quiz Download PDF Version File Certs with Contract Send Certs to Security Assistant to file Send Certs to IPO to File

7. Refer all questions and information to:

Drue Glaze Contracting Officer 15000 Hwy 115, Camp Ripley Little Falls, MN 56345-4173 320-616-2752 Fax: 320-632-7799 Drue.I.Glaze.mil@mail.mil