SECTION: 23 52 00 HEATING BOILERS

 

Criteria

  1. Quality Assurance: EP 415-1-261, Volume 1 & EP 415-1-261, Volume 4
  2. UFGS SECTION 23 52 00  HEATING BOILERS 
  3. Federal Sustainable Acquisition Items/Requirements
  4. DoD Green Procurement Policy (Aug 27 2004)
  5. DoD Green Procurement Strategy (Nov 2008)
  6. Army Green Procurement Policy (Nov 22 2006)
  7. Federal Acquisition Regulation, Part 23  
  8. Energy Star
  9. FEMP 
  10. EPA Final Guidance on Environmentally Preferable Purchasing
  11. UFC 1-200-2 (High Performance and Sustainable Buildings Requirements)
  12. ASA IE&E Sustainable Design and Development Policy (Jan 17 2017)
  13. 10 CFR 436 Subpart A (Life Cycle Cost Analysis, Energy- and -Water Related Projects)
  14. NIST 135 (Life Cycle Cost Analysis, Energy- and -Water Related Projects)
  15. HJB Form 225 (JBLM Sustainable Acquisition Exception Form)
  16. DIVISION 23 - HEATING, VENTILATING, AND AIR CONDITIONING (HVAC)

Changes or Criteria Notes to Unified Facilities Guide Specifications (UFGS)

Paragraph # and Title (if any)

Note to Designer

Change Text

1.2 SUBMITTALS

 If 01 33 29 is not incorporated in the specifications, change reference to 01 33 29 in this section to instead say 01 57 19.01 20 SUPPLEMENTAL TEMPORARY ENVIRONMENTAL CONTROLS and ensure the additional sustainable acquisition language at paragraphs "Submittals" and "Sustainable Acquisition" of 01 57 19.01 20 is included within that section.

 

1.2 SUBMITTALS

Ensure VOC and recycled content submittals for insulation, as required at 01 33 29/01 57 19.01 20, are incorporated at 23 07 00.

 

Ensure the energy efficiency submittal at SD-11 is also incorporated under SD-01 Preconstruction Submittals so the Government can verify compliance of proposed materials prior to work commencing. If water heaters will also be supplied per paragraph 2.13.3, include the following at both SD-01 and SD-11:

Energy Efficient Equipment for Water Heaters; S

2.1 PRODUCT SUSTAINABILITY CRITERIA

 Delete "For products in this section, where applicable and to extent allowed by

performance criteria, provide and document the following:" The language at 01 33 29/01 57 19.01 20 allows for exceptions based on performance criteria, as long as adequate justification per the applicable legal or policy requirement is provided on HJB Form 225. Revise remainder of text as follows:

For boilers and water heaters, provide products and documentation in conformance with Section [01 33 29 SUSTAINABILITY REPORTING][01 57 19.01 20 SUPPLEMENTAL TEMPORARY ENVIRONMENTAL CONTROLS] paragraph ENERGY EFFICIENT PRODUCTS. For more information, see https://sftool.gov/greenprocurement/https://www.energy.gov/eere/femp/search-energy-efficient-products, and https://www.energystar.gov/products?s=mega.

2.13.21 Thermometers

Add to paragraph

Temperature and pressure gauges shall be the round dial type.

2.13.22.2 Automatic Air Vents

Add to the end of the paragraph

Preferred manufacturer Hoffman 78 or 79.

2.15 INSULATION

[NOTE: In the column to the right, select 01 33 29 when it is incorporated into the specifications, otherwise select 01 57 19.01 20 and ensure it includes added language at paragraphs "Submittals" and "Sustainable Acquisition."] Ensure recycled and VOC content language and submittal requirements are incorporated at 23 07 00.

Insulation shall conform to EPA requirements for recycled content in accordance with Section [01 33 29 SUSTAINABILITY REPORTING][01 57 19.01 20 SUPPLEMENTAL TEMPORARY ENVIRONMENTAL CONTROLS] paragraph RECYCLED CONTENT.  For more information, see https://sftool.gov/greenprocurement/green-products/1/construction-materials/22/building-insulation/0?addon=False

2.18 BOILER WATER TREATMENT

Add:

Copies of the Safety Data Sheets(SDS) for all hazardous materials used or stored on JBLM shall be submitted in accordance with Section 01 57 19.01 20 SUPPLEMENTAL TEMPORARY ENVIRONMENTAL CONTROLS.  Hazardous materials used must be on the contractor's Authorized Use List as issued by the JBLM Pollution Prevention Program.

3.1 CONSTRUCTION-RELATED SUSTAINABILITY CRITERIA

If 01 33 29 is not incorporated, change citation from 01 33 29 to UFC 1-200-02.

 

2.13.18.5 Ball Valves 2.13.18 Valves 2.6.2   Hot Water and Boiler Circulating Pumps

Add to the paragraph.

Ball Valves shall be full port, with stainless steel trim. Valves 2" and smaller shall be ball type; larger valves may be ball, butterfly, or gate type. boiler

flow switch

Flow switch unit shall be a self-contained swinging vane type to indicate fluid flow.

2.13.21 Thermometers 2.13.18.5 Ball Valves 2.13.18 Valves

Add to the paragraph.

Temperature and pressure gauges shall be the round dial type. Ball Valves shall be full port, with stainless steel trim. Valves 2" and smaller shall be ball type; larger valves may be ball, butterfly, or gate type.

2.13.22.2 Automatic Air Vents 2.13.21 Thermometers 2.13.18.5 Ball Valves

 

Preferred manufacturer Hoffman 78 or 79. Temperature and pressure gauges shall be the round dial type. Ball Valves shall be full port, with stainless steel trim.

2.13.22.2 Automatic Air Vents 2.13.21 Thermometers

 

All boiler piping shall be schedule 40 steel or type L copper. 

Design Requirements

  1. Boiler Sizing: Size to handle full heat load plus any additional shower or domestic hot water load served by the boiler. Where showers are served, size peak demand for 100% shower use. 
  2. Gas Piping: See Section 15488 requirements.
  3. All boilers shall have manhole access for cleaning fireside surfaces (including first pass) without removal of burner.   Manhole dimensions shall meet the requirements of the ASME, Section I, Rules for Construction of Power Boilers (2001).
  4. All boilers shall operate IAW PSCCA rules and regulations on NOX, SO2, and CO.
  5.  Bottom blow valves shall have one quick and one slow opening valve inline. - For steam
  6. Surface blow down system shall be installed with stainless steel metering valves in line. - For steam
  7. All steam boilers greater than 5MBTUH input shall have blow down tanks that shall be rated for boiler and be equipped with city water quench capability.
  8. All boiler and condensate systems shall have sample coolers with city water cooling installed. - For steam
  9. All boilers shall have Honeywell 7800 series or better flame safeguards with troubleshoot module and interchangeable with existing equipment.
  10. Water softeners shall be installed with every new steam boiler installation.
  11. Chemical injection tank, mixer, and pump shall be installed with all steam boilers, bypass feeder types shall be installed on hot water boilers.
  12. Modulating type burner controls with auto and manual controls shall be on all boilers with output of 1MMBtu's/hr and larger. Boilers with an output between .7MMBtu's/hr and 1MMBtu's/hr shall use High-Low-High controls and boilers under .7MMBtu's/hr shall use fixed rate on-off firing rate controls.
  13. All boiler installations shall have blow down piping installed to drain, for gage glass, water columns and low water cutouts.
  14. Independent water meters shall be on all boiler installations under 5MMBTUH. Independent water, gas and fuel oil meters shall be on all boiler installations 5MMBTUH and greater.
  15. Boilers shall have a minimum of 5 square feet of boiler surface per boiler horsepower. - For steam
  16. Provide emergency manual remote shutdown switch for boiler at all Mechanical room doors to conform to requirements of CSD-1. For exterior doors exposed to the weather, the switch is to be located just inside the door.
  17. Activation of the emergency switch shall immediately shut off the energy supply. Emergency manual remote switch shutdown switch/switches shall also control all other gas-fired equipment in the mechanical room, including domestic water heaters.
  18. Per existing building as-builts, if a condensing boiler is not suitable to achieve maximum thermal efficiency, a non-condensing boiler may be installed. General exemption is applicable. Include pre-approved Form HJB 225 (Sustainable Acquisition Exemption waiver) in Sustainable Design e-Notebook.

 

 

Notes to Designers on Drawing Content

  1. Isolation Valves shall be provided so as to allow for maintenance of portions of the system without having to shut down the entire building. Provide valves as a minimum as follows:  
    • At all coil connections.
    • At all equipment (boilers, pumps, etc.).
    • At all automatic air vents.
    • At each wing (and floor) of the building.
  2. Automatic Air Vents: Show on plans; provide on each building riser and where air may accumulate. Pipe to proper point of drainage.
  3. Air separators shall be provided on all hydronic systems.
  4. Valve Accessibility: Locate so as to be as accessible as possible; provide access doors as needed to allow access.
  5. Balancing Valves:
    • Manual balancing valves should be used; use constant flow valves only where there is a special need.
    • Do not use balancing valves for isolation.
  6. Reduced Pressure Backflow Preventers (RPBP) shall be located between 3' and 5' above floor, with clear access path. Pipe with an air gap drain to floor drain.
  7. All boiler flues shall have a stack temperature gauge installed.
  8. Anti-Siphon Valves shall be provided on fuel oil systems where siphoning or drain-down may occur.
  9. All pumps and strainers shall have gauges before and after them to read differential pressure across them.
  10. Provide suction diffuser on pumps connections, or six pipe diameters of straight pipe (or more if recommended for pump type being used) with an inline strainer.
  11. Boilers: Show tube removal clearances on plans. Where louvers need to be removed for access use type that are easily removed (i.e., flanged style).
  12. Provide isolation valves in make-up water piping; provide water meter on make-up water assembly; meter to be pulse type to allow injection of chemicals based on make-up water.
  13. Provide strainers upstream of all coil connections; provide pressure and temperature test ports at coils connections where piping is 1-1/2" and larger; provide manual air vent in return piping; provide drain valves at low point; provide balancing valve; provide unions at coil and control valve connections.
  14. Provide remote fuel oil pumps non-integral to the burner; provide strainers upstream of pumps.
  15. Provide most direct vent routing possible; provide access to exterior flue, for inspection and repairs.
  16. Emergency boiler shut-down switch shall be mushroom type with twist to reset.  Emergency Switches shall be located inside the mechanical room by all exit doors.  Appropriately label boiler emergency shut-down switch. Must be hard-wired to boiler for shut-down and monitored by the building DDC for the appropriate alarm.

 

 

Standard Details

 

 

Applicable Points of Contact

Design Standards