23_54_16.00_10_HEATING_SYSTEM__GAS-FIRED_HEATERS.pdf

SECTION 23 54 16.00 10

HEATING SYSTEM; GAS-FIRED HEATERS

PART 1 GENERAL

1.1 REFERENCES

1.1.1 The publications listed below form a part of this specification to the extent referenced. The publications are referred to in the text by the basic designation only. Unless other wise noted, the latest published version and/or revision shall be used.

1.1.1.1 CSA AMERICA, INC. (CSA/AM)

a. CSA Directory Certified Products Listings

b. CSA/AM Z83.19 Gas-Fired Infrared Heaters

1.1.1.2 NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA)

a. NEMA MG 1 Standard for Motors and Generators

1.1.1.3 NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

a. NFPA 211 Chimneys, Fireplaces, Vents, and Solid Fuel-Burning Appliances

b. NFPA 54 National Fuel Gas Code

1.1.1.4 UNDERWRITERS LABORATORIES (UL)

a. UL Gas & Oil Dir Flammable and Combustible Liquids and Gases Equipment Directory

1.2 SUBMITTALS

1.2.1 Government approval may be required on any of the following items. Items requiring submittals will be listed on the AF Form 66. Provide copies of all submittals per the requirements in Section 01 33 00, Submittal Procedures, or as listed on the AF Form 66.

1.2.1.1 SD-02 Shop Drawings

a. Detail Drawings

(1) Installation

(2) Detail drawings as specified.

1.2.1.2 SD-03 Product Data

a. Spare Parts

a. Spare parts data for each different item of materials and equipment specified.

1.2.1.3 SD-06 Test Reports

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a. Testing, Adjusting, and Balancing

(1) Test reports shall be submitted in booklet form showing all field tests performed to adjust each component and all field tests performed to prove compliance with the specified performance criteria, upon completion and testing of the installed system. Each test report shall indicate the final position of controls.

1.2.1.4 SD-10 Operation and Maintenance Data

a. Operation and Maintenance Instructions

(1) Complete copies of operating instructions outlining the step-by-step procedures required for system startup, operation and shutdown. The instructions shall include the manufacturer's name, model number, service manual, parts list, and brief description of all equipment and basic operating features.

(2) Complete copies of maintenance instructions listing routine maintenance, possible breakdowns, repairs and troubleshooting guide. The instructions shall include simplified piping, wiring, and control diagrams for the system as installed.

1.3 QUALITY ASSURANCE

1.3.1 Submit detail drawings consisting of illustrations, schedules, performance charts, instructions, brochures, diagrams, and other information to illustrate the requirements and operation of the system. Detail drawings for space heating equipment, controls, associated equipment, and for piping and wiring. Drawings shall show proposed layout and anchorage of equipment and appurtenances, and equipment relationship to other parts of the work including clearances for maintenance and operation.

1.4 DELIVERY, STORAGE, AND HANDLING

1.4.1 Protect all equipment delivered and placed in storage from weather, humidity and temperature variations, dirt and dust, or other contaminants.

1.5 EXTRA MATERIALS

1.5.1 Submit spare parts for each different item of material and equipment specified, after approval of the detail drawings. Include in the data a complete list of parts and supplies, with current unit prices and source of supply.

PART 2 PRODUCTS

2.1 MATERIALS AND EQUIPMENT

2.1.1 General

2.1.1.1 Provide materials and equipment which are standard products of a manufacturer regularly engaged in manufacturing of the products and that essentially duplicate equipment that has been in satisfactory use at least 2 years prior to bid opening.

2.1.2 Nameplates

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2.1.2.1 Secure a plate to each major component of equipment containing the manufacturer's name, address, type or style, model or serial number, and catalog number. Also, affix an ENERGY STAR label as applicable.

2.1.3 Equipment Guards

2.1.3.1 Belts, pulleys, chains, gears, couplings, projecting setscrews, keys, and other rotating parts so located that any person may come in close proximity thereto shall be completely enclosed or guarded. High-temperature equipment and piping so located as to endanger personnel or create a fire hazard shall be guarded or covered with insulation of type specified for service.

2.2 ELECTRICAL WORK

2.2.1 Electrical motor driven equipment shall be provided complete with motors, motor starters, and controls. Motors shall conform to NEMA MG 1.

2.2.2 Electrical equipment and wiring shall be in accordance with Section 26 20 00 Interior Distribution System. Electrical characteristics shall be as specified or indicated. Integral size motors shall be premium efficiency type in accordance with NEMA MG 1. Motor starters shall be provided complete with thermal overload protection and other appurtenances necessary for the motor control specified. Each motor shall be of sufficient size to drive the equipment at the specified capacity without exceeding the nameplate rating of the motor. Manual or automatic control and protective or signal devices required for the operation specified and any control wiring required for controls and devices specified, but not shown, shall be provided.

2.3 HEATERS

Heaters shall be equipped for and adjusted to burn natural gas as indicated. Each heater shall be provided with a gas pressure regulator that will satisfactorily limit the main gas burner supply pressure. Heaters shall have an intermittent or interrupted electrically ignited pilot or a direct electric ignition system. Safety controls shall conform to the ANSI standard specified for each heater. Mounting brackets and hardware shall be furnished by the heater manufacturer and shall be factory finished to match the supported equipment. Seismic details shall be in accordance with UFC 3-310-04 Seismic Design for Buildings and Sections 13 48 00 Seismic Protection for Miscellaneous Equipment and 13 48 00.00 10 Seismic Protection for Mechanical Equipment.

2.3.1 Infrared Heaters

2.3.1.1 Heaters shall conform to the requirements of CSA/AM Z83.19 and shall be vented unvented type as indicated. Vented heaters shall be vented to the outside atmosphere. Heater style shall be tubular type as indicated. Reflector shape shall be parabolic, horizontal or standard as indicated. Heaters shall be provided with space thermostats which control the unit's burner.

Thermostats located in the direct radiation pattern shall be covered with a metal shield.

2.4 THERMOSTATS

2.4.1 Thermostats shall be the adjustable electric or electronic type. Control wiring required to complete the space temperature control system shall be included. Thermostats shall have a 3 degree F differential and a set point range of 40 to 75 degrees F. Thermostats shall be the single or two stage type as indicated.

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2.5 VENT PIPING

2.5.1 Vent piping shall conform to the requirements of NFPA 54. Plastic material polyetherimide (PEI) and polyethersulfone (PES) are forbidden to be used for vent piping of combustion gases.

2.6 INSULATION

2.6.1 Insulation for piping and equipment and application shall be in accordance with Section 23 07 00 Thermal Insulation for Mechanical Systems.

2.7 FACTORY FINISHES

2.7.1 Equipment and component items, when fabricated from ferrous metal, shall be factory finished with the manufacturer's standard finish.

PART 3 EXECUTION

3.1 INSTALLATION

Equipment shall be installed as indicated and in accordance with the recommendations of the equipment manufacturer and the listing agency, except as otherwise specified.

3.1.1 Heating Equipment

3.1.1.1 Heaters shall be installed with clearance to combustibles complying with minimum distances as determined by CSA Directory, UL Gas & Oil Dir and as indicated on each heater approval and listing plate. Heaters shall be independently supported from the building structure as indicated and shall not rely on support from suspended ceiling systems.

3.1.2 Vents

3.1.2.1 Vent dampers, piping and structural penetrations shall be located as indicated. Vent damper installation shall conform to CSA/AM Z21.66. Vent pipes, where not connected to a masonry chimney conforming to NFPA 211, shall extend through the roof or an outside wall and shall terminate, in compliance with NFPA 54. Vents passing through waterproof membranes shall be provided with the necessary flashings to obtain waterproof installations.

3.1.3 Gas Piping

3.1.3.1 Gas piping shall be connected as indicated and shall comply with the applicable requirements at Section 23 11 23.00 10 Gas Piping Systems.

3.2 TRAINING

3.2.1 The Contractor shall conduct a training course for the maintenance and operating staff. The training period of up to four hours normal working time shall start after the system is functionally complete but before the final acceptance tests. The training shall include all of the items contained in the approved operation and maintenance instructions as well as demonstrations of routine maintenance operations. The Contracting Officer shall be given at least two weeks

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3.3 TESTING, ADJUSTING, AND BALANCING

3.3.1 Testing, adjusting, and balancing shall be as specified in Section 23 05 93.00 10 Testing, Adjusting, and Balancing of HVAC Systems.

END OF SECTION 23 54 16.00 10