Exhibit 1 (Technical Specifications)~1.docx

Exhibit 1

TECHNICAL SPECIFICATIONS

ESB – Arlington Shop Unit Heater

SECTION 235523.16 - GAS-FIRED, UNIT HEATERS

GENERAL

SCOPE SUMMARY

Section Includes:

Provide (1) new propane fired Unit heater at ODOT Arlington Maintenance Shop, 1520 Hwy 19 Arlington OR 97812. Provide all work and components for a fully operational unit heater including but not limited to; 30’ of 1/2 inch black iron gas piping, connection to existing ¾ inch propane line, new exhaust ventilation utilizing existing vent penetration, flexible connection to heater with valve assembly, provide 120 volt outlet to heater location including surface mounted EMT conduit path and all circuitry, mechanical and electrical permits, demo and removal of existing oil heater. The “Reznor UDX 150K BTU Unit Heater” shall establish the minimum requirements for quality, utility, durability, function, and purpose. Other brand names may be used in the construction of the project as long as they are equal to or better than the product brand named, and are approved by ODOT prior to installation.

ACTION SUBMITTALS

Product Data: For each type of product.

Include rated capacities, operating characteristics, electrical characteristics, and furnished specialties and accessories.

Shop Drawings:

Include details of equipment assemblies. Indicate dimensions, weights, loads, required clearances, method of field assembly, components, and location and size of each field connection.

INFORMATIONAL SUBMITTALS

Field quality-control reports.

CLOSEOUT SUBMITTALS

Operation and maintenance data.

PRODUCTS

PERFORMANCE REQUIREMENTS

Comply with ANSI Z83.19A/CSA 2.35A.

CSA certified, with CSA Seal and certification number clearly visible on units.

UL listed and labeled, with UL label clearly visible on units.

Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and application.

GAS-FIRED, UNIT HEATER

Factory-assembled, indoor, overhead-mounted, electrically controlled, Unit Heaters using gas combustion. Heater to have all necessary factory-installed wiring and piping required prior to field installation and startup.

Fuel Type: Design burner for PROPANE gas having characteristics same as those of gas available at Project site.

Burner Assembly: Modular, stainless-steel or aluminized-steel plenum chamber secured with stainless-steel or aluminized-steel retainers.

Emitter: Perforated ceramic tiles.

Reflector: One-sided, bright-polished aluminum.

Ignition:

Manual Pilot: Self-energizing with no external power connection.

Direct Spark: 115/120-V ac, solid-state ignition module with spark electrode and flame sensor.

Accessories:

Parabolic reflector Wire grid or expanded metal secondary emitter for increased efficiency.

Protective screen and heat-deflector shield.

Stainless-steel flexible connector with manual valve for gas supply.

Hanger chain with "S" hooks.

Preassembled chain suspension kit.

Rigid mounting kits.

Clearance warning plaque.

Two-stage operation.

Capacities and Characteristics:

Gas Input: 150,000 Btu/h.

Gas Output: 124,000 Btu/h.

dBA: 51 Thermal efficiency: 83% CFMs: 1900 Electrical Characteristics:

Volts:115/120 Full-Load Amperes: 10 Minimum Circuit Ampacity: 15

CONTROLS AND SAFETIES

Failure Safeguards: 100 percent main gas shutoff on pilot failure.

Thermostat: Programable thermostat, devices and wiring to be installed in accordance with manufacturers recommendations.

EXECUTION

INSTALLATION

Equipment Installation: Install gas-fired, Unit heaters and associated gas features and systems according to NFPA 54.

Suspended Units: Mount to substrate using rigid mounting kits or brackets, supplied by manufacturer or manufactured.

Restrain the unit to resist seismic acceleration. Comply with requirements for seismic-restraint devices specified in Section 230548 "Vibration and Seismic Controls for HVAC."

Comply with requirements for hangers and supports specified in Section 230529 "Hangers and Supports for HVAC Piping and Equipment."

Maintain manufacturers' recommended clearances for combustibles.

Gas Piping: Comply with all governing jurisdictions. Connect gas piping to gas train inlet; provide union with enough clearance for burner removal and service.

Gas Connections: Connect gas piping to Unit heaters according to NFPA 54.

Where installing piping adjacent to gas-fired, Unit heaters, allow space for service and maintenance.

Electrical Connections: Comply with applicable requirements in Section 260519 "Low-Voltage Electrical Power Conductors and Cables."

Install electrical devices furnished with heaters but not specified to be factory mounted.

Adjust initial-temperature set points.

Adjust burner and other unit components for optimum heating performance and efficiency.

FIELD QUALITY CONTROL

Perform the following tests and inspections Test and adjust controls and safeties. Replace damaged and malfunctioning controls and equipment.

Verify bearing lubrication.

Verify proper motor rotation.

Test Reports: Prepare a written report to record the following:

Test procedures used.

Test results that comply with requirements.

Test results that do not comply with requirements and corrective action taken to achieve compliance with requirements.

Gas-fired, unit heaters will be considered defective if they do not pass tests and inspections.

Prepare test and inspection reports.

END OF SECTION 235523.16

Copyright © 2023 by the American Institute of Architects. Warning: This AIA MasterSpec-based document is protected by U.S. Copyright Law and International Treaties. It was created by "Oregon Department of Transportation" for "Veneta Deicer Containment". A valid, current MasterSpec license is required for editing and use of this document for any other project.(21072)

Copyright © 2023 by the American Institute of Architects. Warning: This AIA MasterSpec-based document is protected by U.S. Copyright Law and International Treaties. It was created by "Oregon Department of Transportation" for "Veneta Deicer Containment". A valid, current MasterSpec license is required for editing and use of this document for any other project.(21072)