USACE / NAVFAC / AFCESA / NASA UFGS-23 52 43.00 20 (July 2006)
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Preparing Activity: NAVFAC Superseding
UFGS-23 52 43.00 20 (April 2006)
UNIFIED FACILITIES GUIDE SPECIFICATIONS
References are in agreement with UMRL dated January 2009
SECTION 23 52 43.00 20
LOW PRESSURE WATER HEATING BOILERS (UNDER 800,000 BTU/HR OUTPUT)
07/06
NOTE: This guide specification covers the requirements for low pressure hot
water heating boilers under 235 kilowatt 800,000 BTU/hr output.
Edit this guide specification for project specific requirements by adding, deleting,
or revising text. For bracketed items, choose applicable items(s) or insert
appropriate information.
Remove information and requirements not required in respective project, whether
or not brackets are present.
Comments and suggestions on this guide specification are welcome and should
be directed to the technical proponent of the specification. A listing of technical
proponents, including their organization designation and telephone number, is
on the Internet.
Recommended changes to a UFGS should be submitted as a Criteria Change Request
(CCR).
PART 1 GENERAL
1.1 REFERENCES
NOTE: This paragraph is used to list the publications cited in the text of
the guide specification. The publications are referred to in the text by basic
designation only and listed in this paragraph by organization, designation,
date, and title.
Use the Reference Wizard's Check Reference feature when you add a RID outside
of the Section's Reference Article to automatically place the reference in the
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to update the issue dates.
References not used in the text will automatically be deleted from this section
of the project specification when you choose to reconcile references in the
publish print process.
The publications listed below form a part of this specification to the extent referenced. The publications are
referred to within the text by the basic designation only.
[AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI)ANSI Z83.3(1971; R 1995) Gas Utilization Equipment in Large Boilers][ASME INTERNATIONAL (ASME)ASME BPVC SEC IV(2007; Addenda 2008) Boiler and Pressure Vessel Code; Section IV, Recommended Rules for the Care and Operation of Heating BoilersASME CSD-1(2006) Control and Safety Devices for Automatically Fired Boilers][ASTM INTERNATIONAL (ASTM)ASTM A 53/A 53M(2007) Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and SeamlessASTM C 592(2008a) Standard Specification for Mineral Fiber Blanket Insulation and Blanket-Type Pipe Insulation (Metal-Mesh Covered) (Industrial Type)ASTM E 2129(2005) Standard Practice for Data Collection for Sustainability Assessment of Building Products][CANADIAN STANDARDS ASSOCIATION (CSA)CSA 4.9(2004; Addenda A 2005; Addenda B 2007) Gas-Fired Low Pressure Steam and Hot Water Boilers][NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA)NEMA MG 1(2007; Errata 2008) Standard for Motors and Generators][NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)NFPA 211(2006) Chimneys, Fireplaces, Vents, and Solid Fuel-Burning Appliances][U.S. DEPARTMENT OF DEFENSE (DOD)MIL-B-18897(Rev F; CANC Notice 1) Boilers, Steam and Hot Water, Watertube (Straight Bare and Finned Tube), Cast Iron and Firebox, Packaged Type (40,000 to 35,000,000 BTU/HR Thermal Output Capacity)][U.S. ENVIRONMENTAL PROTECTION AGENCY (EPA)Energy Star(1992; R 2006) Energy Star Energy Efficiency Labeling System][U.S. GENERAL SERVICES ADMINISTRATION (GSA)FS F-B-2909(Basic) Burners, Single Light Oil, Gas, and Light Oil-Gas Combination for Packaged Heating Boilers (up to 320,000 BTU/HR Thermal Output Capacity)FS F-B-2910(Basic) Burners, Single Oil, Gas, and Gas-Oil Combination for Packaged Boilers (320,001 to 125,000,000 BTU/HR Thermal Output Capacity)FS F-F-2901Feeders, Boiler Water Treatment, By-Pass and Compound Receiver Types][UNDERWRITERS LABORATORIES (UL)UL 726(1995; Rev thru Mar 2006) Oil-Fired Boiler AssembliesUL 795(2006) Commercial-Industrial Gas Heating Equipment]1.2 RELATED REQUIREMENTS
Section 23 03 00.00 20 BASIC MECHANICAL MATERIALS AND METHODS, applies to this section, with the additions and
modifications specified herein.
1.3 DESIGN REQUIREMENTS
NOTE: Insert boiler output capacity or indicate in boiler schedule. Select
boiler design working pressure, operating pressure, operating temperature, and
return water temperature and indicate in boiler schedule on drawings.
NOTE: Use Energy Star option for boilers less than 88 kW300,000 BTU/hr and
FEMP option for boilers 88 kW300,000 BTU/hr or greater.
Boiler shall be suitable for installation in the space shown with ample room for opening doors and cleaning and
removal and replacement of tubes. Boiler shall have an output of [_____] kW BTU/hr with an efficiency not less
than that recommended by [Energy Star][FEMP]. Boiler shall be designed, tested, and installed in accordance
with ASME BPVC SEC IV and ASME CSD-1. Paint boiler in accordance with manufacturer's recommendations. Boiler
design working pressure shall be [207 kPa (gage)] [30 psig] [_____]. Boiler operating pressure shall be [83
kPa (gage)] [12 psig] [_____]. Boiler operating temperature shall be [82 degrees C] [180 degrees F] [_____].
Boiler return water temperature shall be [71 degrees C] [160 degrees C] [_____]. Provide a thermostatically
controlled three-way mixing valve on boiler suitable for operating conditions of the boiler.
1.3.1 Detail Drawings
Submit fuel train and wiring diagram
1.3.2 Water Analysis
Provide test reports of water analysis.
1.4 SAFETY STANDARDS
Hot water boilers, burners and supplementary control devices, safety interlocks, or limit controls required under
this specification, shall meet requirements of the following standards as applicable:
a. Oil-Fired Units: UL 726.
b. Gas-Fired Units: ANSI Z83.3, CSA 4.9 or UL 795.
c. Combination Gas- and Oil-Fired Units: UL 726, ANSI Z83.3, CSA 4.9 or UL 795.
d. All Units: ASME BPVC SEC IV and ASME CSD-1.
Controls not covered by the above shall have a UL label, UL listing mark, or shall be listed in the Factory Mutual
Approval Guide.
1.5 SUBMITTALS
NOTE: Submittals must be limited to those necessary for adequate quality control.
The importance of an item in the project should be one of the primary factors
in determining if a submittal for the item should be required.
A “G” following a submittal item indicates that the submittal requires Government
approval. Some submittals are already marked with a “G”. Only delete an existing
“G” if the submittal item is not complex and can be reviewed through the Contractor’s
Quality Control system. Only add a “G” if the submittal is sufficiently important
or complex in context of the project.
For submittals requiring Government approval on Army projects, a code of up
to three characters within the submittal tags may be used following the "G"
designation to indicate the approving authority. Codes for Army projects using
the Resident Management System (RMS) are: "AE" for Architect-Engineer; "DO"
for District Office (Engineering Division or other organization in the District
Office); "AO" for Area Office; "RO" for Resident Office; and "PO" for Project
Office. Codes following the "G" typically are not used for Navy projects.
Submittal items not designated with a "G" are considered as being for information
only for Army projects and for Contractor Quality Control approval for Navy
projects.
Government approval is required for submittals with a "G" designation; submittals not having a "G" designation
are [for Contractor Quality Control approval.][for information only. When used, a designation following the
"G" designation identifies the office that will review the submittal for the Government.] The following shall
be submitted in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:
NOTE: Include the following paragraph for SOUTHNAVFACENGCOM projects.
[Submittals for this Section shall be delivered to the Contracting Officer, who shall forward two complete sets
of copies to the Commanding Officer, Southern Division, Naval Facilities Engineering Command, Code 16B, for review
and approval.]
SD-02 Shop Drawings
Fuel train
Wiring diagram
SD-03 Product Data
Boilers: power output, thermal efficiency, ASME certification, allowable working pressure,
model number, documentation for Energy Star qualifications or meeting FEMP requirements
Boiler trim and control equipment
Burners and control equipment
Stack, breeching, and supports
[Local/Regional Materials
Documentation indicating distance between manufacturing facility and the project site. Indicate
distance of raw material origin from the project site. Indicate relative dollar value of local/regional
materials to total dollar value of products included in project.]
[Environmental Data]
SD-06 Test Reports
Operational tests
Water analysis
SD-07 Certificates
Boilers
Burners and control equipment
Boiler trim and control equipment
Boilers
Boiler trim and control equipment
Burners and control equipment
Boiler manufacturer's certificate of boiler performance including evidence that the burners
provided shall be a make, model, and type certified and approved by the manufacturer of the
boiler being provided.
SD-08 Manufacturer's Instructions
Boilers
Feedwater treatment feeder
SD-10 Operation and Maintenance Data
Boilers, Data Package 4
Submit in accordance with Section 01 78 23 OPERATION AND MAINTENANCE DATA.
SD-11 Closeout Submittals
Posted operating instructions for heating water boilers
1.6 SUSTAINABLE DESIGN REQUIREMENTS
1.6.1 Local/Regional Materials
NOTE: Using local materials can help minimize transportation impacts, including
fossil fuel consumption, air pollution, and labor.
Use materials or products extracted, harvested, or recovered, as well as manufactured, within a [500][_____]
mile [800][_____] kilometer radius from the project site, if available from a minimum of three sources.
1.6.2 Environmental Data
NOTE: ASTM E 2129 provides for detailed documentation of the sustainability
aspects of products used in the project. This level of detail may be useful
to the Contractor, Government, building occupants, or the public in assessing
the sustainability of these products.
[Submit Table 1 of ASTM E 2129 for the following products: [_____].]
PART 2 PRODUCTS
2.1 BOILERS
NOTE: Select boiler type and style required. The Energy Policy Act of 2005
requires new buildings to use 30 percent less energy than the ASHRAE 90.1 level.
Efficient heating equipment and components contribute to the following LEED
credits: EA Prerequisite 2; EA1.
NOTE: Efficiency of 85 percent for boilers less than 88 kW 300,000 Btuh is
per Energy Star requirements; 87 percent is an option that is readily available
for these boilers.
MIL-B-18897. Provide hot water heating boiler complete with firing equipment, combustion chamber, insulation
with steel jacket, safety and operating controls, integral electrical wiring and other appurtenances, to make
the boiler a complete, self-contained, fully-automatic unit, ready for service upon completion of utility connections.
[Boilers less than 88 kW 300,000 Btuh shall have an Annual Fuel Utilization Efficiency (AFUE) of at least [85][87]
percent.] [Gas fired boilers greater than 88 kW 300,000 Btuh output shall have a steady state combustion efficiency
of at least 80 percent when fired at the maximum and minimum capacities which are provided and allowed by the
controls.] [Oil fired boilers greater than 88 kW 300,000 Btuh output shall have a steady state combustion efficiency
of at least 83 percent when fired at the maximum and minimum rated capacities which are provided and allowed
by the controls.]
2.2 BURNERS AND CONTROL EQUIPMENT
NOTE: Indicate fuel trains on the drawings. Conform to the requirements of
ASME CSD-1 and FS F-B-2910. See FS F-B-2910 for guidelines for selection of
a combustion control systems.
[2.2.1 Atmospheric-Type Gas Burner
Atmospheric-type gas burner (under 117 kW 400,000 BTU/hr input). CSA 4.9. Automatic recycling burner. ON-OFF
type combustion control system. [Interrupted] [Intermittent] pilot type ignition system, and pilot shall be
electrode-ignited natural gas type. Design burner and combustion control equipment for firing natural gas having
a specific gravity of [0.6] [_____] and a heating value of approximately [37,300 kJ per cubic meter] [1000 BTU
per cubic foot] and be an integral part of the boiler. Burner controls and safety equipment shall conform to
applicable requirements of CSA 4.9, including complete gas shut-off and pilot gas. Gas pressure available:
[_____ Pa inches of water gage] [_____ kPa (gage) psig].
][2.2.2 Gas-Fired Power Burner
Gas-fired power burner (over 117 kW 400,000 BTU/hr input). FS F-B-2910. Interrupted pilot type ignition system,
and pilot shall be the electrode-ignited natural gas type. Design burner and combustion control equipment for
firing natural gas having a specific gravity of [0.6] [_____] and a heating value of approximately [37,300 kJ
per cubic meter] [1000 BTU per cubic foot] [____] and be an integral part of the boiler. Burner controls and
safety equipment shall conform to applicable requirements of FS F-B-2910. Mount controls; including operating
switches, indicating lights, gages, alarms, motor starters, fuses, and circuit elements of control systems on
a single control panel or cabinet designed for separate mounting not on the burner in accordance with FS F-B-2910
. The combustion control system shall be the [on/off] [high-low-off] [positioning] [metering] type. Locate flame
scanner such that testing and cleaning of scanner can be accomplished without disassembly of burner. Provide
fuel train as indicated. Gas pressure available: [_____ Pa inches of water gage] [_____ kPa (gage) psig].
][2.2.3 Oil-Fired Power Burner
Oil-fired power burner (under 117 kW 400,000 BTU/hr input). FS F-B-2909. Direct electric-spark-ignited type
ignition system. Burner controls and safety equipment shall conform to applicable requirements of FS F-B-2909
. The combustion control system shall be the [on/off] [high-low-off] [positioning] [metering] type.
][2.2.4 Oil-Fired Power Burner
Oil-fired power burner (over 117 kW 400,000 BTU/hr input). FS F-B-2910. Pressure-atomizing type burner. Direct
electric-spark-ignited type ignition system. Design burner and combustion control equipment for firing commercial
grade number 2 fuel oil and be an integral part of the boiler. Burner controls and safety equipment shall conform
to applicable requirements of FS F-B-2910. The combustion control system shall be the [on/off] [high-low-off]
[positioning] [metering] type. Mount controls; including operating switches, indicating lights, gages, alarms,
motor starters, fuses, and circuit elements of control systems on a single control panel or cabinet designed
for separate mounting not on the burner in accordance with FS F-B-2910. Locate flame scanner such that testing
and cleaning of scanner can be accomplished without disassembly of burner. Provide fuel train as indicated.
][2.2.5 Gas and Light Oil-Fired Power Burner
Gas and light oil-fired power burner (over 117 kW 400,000 BTU/hr Input). FS F-B-2910. The combustion control
system shall be the [on/off] [high-low-off] [positioning] [metering] type. Pressure-atomizing type oil burner.
Interrupted-pilot type ignition system, and pilot be electrode-ignited natural gas type, except that the oil
burner be direct electric-spark-ignited. Design burner and combustion control equipment for firing commercial
grade number 2 fuel oil and natural gas having a specific gravity of [0.6] [_____] and a heating value of approximately
[37,300 kJ per cubic meter] [1000 BTU per cubic foot] [_____] and be an integral part of boiler. Burner controls
and safety equipment shall conform to applicable requirements of FS F-B-2910. Mount controls; including operating
switches, indicating lights, gages, alarms, motor starters, fuses, and circuit elements of control systems on
a single control panel or cabinet designed for separate mounting not on the burner in accordance with FS F-B-2910
. Locate flame scanner such that testing and cleaning of scanner can be accomplished without disassembly of
burner. Provide fuel train as indicated. Gas pressure available: [_____ Pa inches of water gage] [_____ kPa
(gage) psig].
]2.3 BOILER TRIM AND CONTROL EQUIPMENT
NOTE: Include FS F-B-2910 if power burner with input exceeding 117 kW 400,000
BTU/hr is required.
Provide in accordance with MIL-B-18897 [and FS F-B-2910] and additional requirements specified below.
2.3.1 Emergency Disconnect Switch
NOTE: Indicate location of emergency disconnect switch on drawings. Insert
emergency switch amperage required.
Provide and locate on wall outside boiler room entrance or just inside door, when boiler room door is on building
exterior to allow rapid and complete shutdown of the boiler in the event of an emergency. Emergency switch shall
be a [_____]-amp. fuse-type safety switch. Switch shall be red and furnished with a label indicating function
of switch.
2.3.2 Relief Valves
Provide relieving capacity for the full output of boiler installed. Relief-valve piping shall conform to ASTM A 53/A 53M
, schedule 40 steel pipe and be piped full-size [to a floor drain] [to 150 mm 6 inches above floor].
2.3.3 Pressure and Altitude Gage or Combination Pressure/Altitude Gage
MIL-B-18897. Provide one located on supply water piping and one on return water piping.
2.3.4 Thermometer
Provide thermometer with a scale equivalent to 1.5 times outlet water temperature. Provide one located on supply
water piping and one on return water piping.
2.3.5 Drain Tapping
Provide drain valve and piping [to a floor drain] [to 150 mm 6 inches above floor].
2.3.6 Make-up Water Station
2.3.6.1 Pressure Reducing Station
NOTE: Select operating pressure required.
Provide a water pressure-reducing valve and relief valve, or a combination of the two in the makeup water line
to the boiler to maintain a water pressure of [83 kPa (gage)] [12 psig] [_____] in the hot water system. Provide
a 20 mm 3/4 inch globe valve by-pass around this valve.
2.3.6.2 Backflow Preventers
Section 22 00 00 PLUMBING SYSTEMS. Locate upstream of by-pass.
2.3.7 Feedwater Treatment Feeder
Provide in accordance with FS F-F-2901, Type II - Shot-Type Feeder (manual, intermittent feed), Style A - for
use with pressures up to 1379 kPa (gage) 200 psig maximum.
2.3.8 Combustion Regulator
Provide adjustable temperature, thermostatic immersion type that shall limit boiler water temperature to a maximum
of 121 degrees C 250 degrees F. Control shall actuate burner through an electric relay system to maintain boiler
water temperature within normal prescribed limits at loads within rated capacity of boiler.
2.3.9 Air Vent Valve
Provide with screwed connection, stainless steel disk, and stainless steel seats to vent entrapped air.
2.3.10 High Temperature Limit Switch
NOTE: Specify alarm and indicating lights if input exceeds 117 kW 400,000 BTU/hr
.
Provide immersible aquastat type with a temperature setting above that of the combustion regulator and below
that of the lowest relief valve setting. Aquastat shall function to cause a safety shutdown by closing fuel
valves[,] [and] shutting down burner equipment [, activating a red indicating light, and sounding an alarm] in
the event that boiler water temperature rises to the high temperature limit setting. A safety shutdown due to
high temperature shall require manual reset before operation can resume and prevent recycling of burner equipment.
2.3.11 Low Water Pressure Control
NOTE: Specify alarm and indicating lights if input exceeds 117 kW 400,000 BTU/hr
. Select operating pressure required.
Provide mercury switch type. Control shall have a main scale, adjusting screws at the top of the case, and have
an internal or external bellows. Control shall be the type which will open an electric circuit on a drop in
pressure below a set minimum. Control shall be set and installed to cause a safety shutdown by closing fuel
valves[,] [and] shutting down burner equipment [, activating a red indicating light, and sounding an alarm] in
the event that water pressure in the system drops below [83 kPa (gage)] [12 psig] [_____]. A safety shutdown
due to low water pressure shall require manual reset before operation can resume and prevent recycling of burner
equipment.
2.3.12 Low Water Level Cutoff Switch
NOTE: Specify alarm and indicating lights if input exceeds 117 kW 400,000 BTU/hr
.
Provide float actuated type. Low water level cutoff shall cause a safety shutdown by closing fuel valves[,]
[and] shutting down burner equipment [, activating a red indicating light, and sounding an alarm] in the event
that water level drops below the lowest safe permissible water level established by the boiler manufacturer and
ASME BPVC SEC IV. A safety shutdown due to low water shall require manual reset before operation can resume
and prevent recycling of burner equipment.
2.3.13 Boiler Safety Control Circuits
NOTE: Include draft fan if power burner is specified.
Provide boiler safety control circuits, including control circuits for burner [and draft fan], shall be single-phase,
two-wire one-side grounded, and not over 120 volts. Provide safety control switching in ungrounded conductors.
Provide overcurrent protection. In addition to circuit grounds, ground metal parts which do not carry current
to a grounding conductor.
2.3.14 Indicating Lights
NOTE: Delete entire paragraph if boiler input does not exceed 117 kW 400,000
BTU/hr. Include draft fan if power burner is specified.
Provide indicating lights as follows. Each safety interlock requiring a manual reset shall have an individually-labeled
indicating light. Non-recycling controls/interlocks shall have the reset located on control/interlock itself.
Indicating lights shall have colors as follows in lieu of those required by FS F-B-2910:
a. Amber: Ignition on
b. Green: Main fuel safety shut-off valves open
c. Red (One for Each): Safety lockout, flame failure, low water pressure, low water level,
and high temperature
[d. Blue: Draft]
2.3.15 Alarm Bell
NOTE: Delete entire paragraph if boiler input does not exceed 117 kW 400,000
BTU/hr.
Provide alarm bell not less than 100 mm 4 inches in diameter, electrically operated, with a manual disconnect
switch. Disconnect switch shall be type and wired so that switching off alarm following a safety shutdown will
not prevent alarm from sounding again upon recurrence of a subsequent safety shutdown condition.
2.3.16 Post-Combustion Purge
NOTE: Delete entire paragraph if atmospheric burner is specified.
Provide controls and wiring necessary to ensure operation of draft fan for a period of not less than 15 seconds
or of sufficient duration to provide four complete air changes in the boiler combustion chamber (whichever is
greater) following shutdown of burner upon satisfaction of heat demand. Upon completion of post-combustion purge
period, draft fan shall automatically shutdown until next restart.
2.3.17 Draft
Comply with boiler manufacturer's recommendations.
2.3.18 Stack, Breeching, and Supports
NOTE: NFPA 211, Type B vent can only be used with an atmospheric burner.
[Provide boiler stack constructed of sheet steel having a thickness of not less than 2.47 mm 0.0972 inches with
welded joints. Insulate stack located inside the building with 38 mm 1 1/2 inches of mineral wool conforming
to applicable requirements of ASTM C 592, Class II - for use up to 649 degrees C 1200 degrees F. Insulation
shall receive a finish coat of finishing cement not less than 19 mm 3/4 inch thick, trowelled to a smooth finish.
Provide stack supports, umbrella collar and cap, and flue transition piece. Stack diameter and height shall
be in accordance with manufacturer's recommendations and conform to NFPA 211.]
[NFPA 211, [Type B - gas] [Type L - oil and gas/oil], prefabricated multi-wall type, flashed to the roof, and
complete with rain cap. Stack diameter and height shall be in accordance with manufacturer's recommendations
and conform to NFPA 211.]
2.3.19 Hot Water Coils
NOTE: Delete entire paragraph unless hot water coils are required to instantaneously
heat domestic water.
Provide coils capable of heaing [_____] L/s GPM of water with [_____] degreeCF rise conforming to MIL-B-18897
.
2.3.20 Stack Thermometer
Provide flue gas thermometer with scale calibrated from 66 to 399 degrees C 150 to 750 degrees F and mounted
in flue gas outlet.
2.4 ELECTRIC MOTORS
Electric motors shall meet requirements of NEMA MG 1. Motors less than 3/4 kW 1 hp shall meet NEMA High Efficiency
requirements. Motors 3/4 kW 1 hp and larger shall meet NEMA Premium Efficiency requirements. Motors which are
an integral part of the packaged boiler system shall be the highest efficiency available by the manufacturer
of the packaged boiler. Motors shall be variable speed.
PART 3 EXECUTION
3.1 EQUIPMENT INSTALLATION
Install equipment in accordance with manufacturer's installation instructions. Grout equipment mounted on concrete
foundations before installing piping. Install piping in such a manner as not to place a strain on equipment.
Do not bolt flanged joints tight unless they match. Grade, anchor, guide, and support piping without low pockets.
Feedwater treatment feeders shall be mounted so that the top of the feeder is no higher than 1219 mm 48 inches
above the finished floor.
3.2 EQUIPMENT FOUNDATIONS
Locate equipment foundations as indicated, designed, and made of sufficient size and weight to preclude shifting
of equipment under operating conditions or under abnormal conditions that could be imposed upon the equipment.
Foundations shall meet requirements of the equipment manufacturer. Concrete and grout shall conform to Section
03 30 00 CAST-IN-PLACE CONCRETE.
3.3 BOILER CLEANING
Before being placed in service, boiler shall be boiled out for a period of 24 hours at a pressure not exceeding
83 kPa (gage) 12 psig. Solution to be used in the boiler for the boiling out process shall consist of two pounds
of trisodium phosphate per 379 liters 100 gallons of water. Upon completion of boiling out, flush out boiler
with potable water, drain, and charge with chemically treated water. Protect boiler and appurtenances against
internal corrosion until testing is completed and boiler is accepted. Professional services are required for
cleaning/treatment process.
3.4 FIELD QUALITY CONTROL
Perform and furnish everything required for inspections and tests as specified herein to demonstrate that boiler
and auxiliary equipment, as installed, are in compliance with contract requirements. Start-up and operate the
system. During this time, clean strainers until no further accumulation of foreign material occurs. Exercise
care to minimize loss of water when strainers are cleaned. Adjust safety and automatic control instruments as
necessary to place them in proper operation and sequence. Test instrumentation shall be calibrated and have
full scale readings from 1.5 to 2 times test values.
3.4.1 Operational Tests
Operate each boiler and appurtenances prior to final testing and insure that necessary adjustments have been
made. Provide testing equipment required to perform tests. During this testing period, provide operating instructions
and training to persons tasked with operation of the boiler. Tests shall be accomplished with both fuels on dual
fuel units and include the following:
3.4.1.1 Preliminary Operational Test
Operate the boilers continuously for a period of at least 8 hours to demonstrate proper operability of the combustion
control, flame safeguard control, and safety interlocks.
3.4.1.2 Acceptance Operational Test and Inspection
NOTE: Insert the appropriate Engineering Field Division.
Conduct a preliminary operational test prior to requesting an acceptance operational test and inspection by a
[_____] Division, Naval Facilities Engineering Command Boiler inspector. The Contracting Officer, upon receipt
of the notice from the Contractor, shall request the boiler be inspected by [_____] Division Naval Facilities
Engineering Command. Fifteen days advance notice is required for scheduling inspector to conduct acceptance
operational test and inspection.
3.5 WASTE MANAGEMENT
NOTE: Diverting waste from the landfill contributes to the following LEED credit:
MR2. Coordinate with Section 01572 CONSTRUCTION AND DEMOLITION WASTE MANAGEMENT.
Separate waste in accordance with the Waste Management Plan. Close and seal tightly all partly used adhesives
and solvents; store protected in a well-ventilated, fire-safe area at moderate temperature.
3.6 SCHEDULE
Some metric measurements in this section are based on mathematical conversion of inch-pound measurements, and
not on metric measurements commonly agreed on by the manufacturers or other parties. The inch-pound and metric
measurements shown are as follows:
Products Inch-Pound Metric
a. Alarm Bell
Diameter = 4 inches = 100 mm
b. Stack Thermometer
Scale Range = 150-750 degrees F = 66-399 degrees C