Statement of Work Soda Springs District Office HVAC Modifications

SCOPE OF CONTRACT

This project includes demolition of 12 mod dampers and associated thermostats, demolition of control modules in furnace room and connecting one new programmable thermostat direct to each of three furnaces. Rebalancing all diffusers.

Quantities associated with these options are identified in the Schedule of Items.

PROJECT LOCATION

The project is located in the Soda Springs Ranger District of the Caribou-Targhee National Forest, Caribou County, Idaho, in Section 31, T 1 N, R 70 W. It is located at 410 East Hooper Avenue, Soda Springs, Idaho. The project may be accessed from State Highway 30 and Main Street.

INSPECTION OF WORKSITE

The contractor acknowledges they have taken the necessary steps to ascertain the nature and location of work, and have investigated and satisfied themselves as to the general and local conditions that can affect the work or its cost. Any failure of the contractor to take the actions described and acknowledged in this paragraph will not relieve the Contractor from the responsibility of estimating properly the difficulty and cost of successfully performing the work, or for proceeding to successfully perform the work without additional expenses to the government.

START DATE

TBD

CONTRACT TIME

Base Bid: 30 Calendar Days

SPECIFICATIONS

The following specifications are attached. Some sections in the schedule of items refer to other sections not listed and are subsidiary to, or are included in payment for other pay items in this contract. These items are considered incidental and no additional compensation will be made.

SECTION 017820 - OPERATION AND MAINTENANCE DATA

SECTION 230593 - TESTING, ADJUSTING, AND BALANCING FOR HVAC

SECTION 262726 - WIRING DEVICES

END OF SECTION C

USDA FOREST SERVICE, R4

Soda Springs District Office HVAC Modifications

SECTION 017820 - OPERATION AND MAINTENANCE DATA

1. GENERAL

SUMMARY

This Section includes administrative and procedural requirements for preparing operation and maintenance manuals, including the following:

1. Emergency manuals.

2. Operation manuals for systems, subsystems, and equipment.

3. Maintenance manuals for the care and maintenance of products, materials, finishes systems and equipment.

Related Sections include the following:

4. Division 1 Section “Closeout Procedures” for submitting copies of submittals for operations and maintenance manuals.

5. Division 2 through 16 sections for specific operation and maintenance manual requirements for products in those sections.

SUBMITTALS

Manual: Submit two of each manual in final form at least 15 days before final inspection. Contracting Officer (CO) will return copy with comments within 15 days after final inspection.

6. Correct or modify each manual to comply with CO’s comments. Submit 3 copies of each corrected manual within 15 days of receipt of CO’s comments.

DEFINITIONS

System: An organized collection of parts. Equipment, or subsystems united by regular interaction.

Subsystem: A portion of a system with characteristics similar to a system.

PRODUCTS

MANUALS, GENERAL

Organization: Unless otherwise indicated, organize each manual into a separate section for each system and subsystem, and a separate section for each piece of equipment not part of a system. Each manual shall contain a title page, table of contents, and manual contents.

Title Page: Enclose title page in transparent plastic sleeve. Include the following information:

7. Subject matter included in manual.

8. Name and address of Project.

9. Name and address of District or Forest.

10. Date of submittal.

11. Name, address, and telephone number of Contractor.

12. Cross-reference to related systems in other operation and maintenance manuals.

Table of Contents: List each product included in manual, identified by product name, indexed to content of volume, and cross-referenced to Specification Section number in Project Manual.

Manual Contents: Organize into sets of manageable size. Arrange contents alphabetically by system, subsystem, and equipment. If possible, assemble instructions for subsystems, equipment, and components of one system into a single binder.

13. Binders: Heavy-duty, 3-ring, vinyl-covered, loose-leaf binders, in thickness necessary to accommodate contents, sized to hold 8-1/2-by-11-inch (115-by-280-mm) paper; with clear plastic sleeve on spine to hold label describing contents and with pockets inside covers to hold folded oversize sheets.

Identify each binder on front and spine, with printed title "OPERATION AND MAINTENANCE MANUAL," Project title or name, and subject matter of contents. Indicate volume number for multiple-volume sets.

14. Dividers: Heavy-paper dividers with plastic-covered tabs for each section. Mark each tab to indicate contents. Include typed list of products and major components of equipment included in the section on each divider, cross-referenced to Specification Section number and title of Project Manual.

15. Protective Plastic Sleeves: Transparent plastic sleeves designed to enclose diagnostic software diskettes for computerized electronic equipment.

16. Drawings: Attach reinforced, punched binder tabs on drawings and bind with text.

If oversize drawings are necessary, fold drawings to same size as text pages and use as foldouts.

If drawings are too large to be used as foldouts, fold and place drawings in labeled envelopes and bind envelopes in rear of manual. At appropriate locations in manual, insert typewritten pages indicating drawing titles, descriptions of contents, and drawing locations.

EMERGENCY MANUALS

Content: Organize manual into a separate section for type of emergency, emergency instructions, and emergency procedures.

Type of Emergency: Where applicable, include instructions and procedures for each system, subsystem, piece of equipment, and component for [fire] [flood] [gas leak] [water leak] [power failure] [water outage] [equipment failure] [and] [chemical release or spill].

Emergency Instructions: Describe and explain warnings, trouble indications, error messages, and similar codes and signals. Include responsibilities of Government's operating personnel for notification of Installer, supplier, and manufacturer to maintain warranties.

Emergency Procedures: Include instructions on stopping, shutdown instructions for each type of emergency, operating instructions for conditions outside normal operating limits, and required sequences for electric or electronic systems.

OPERATION MANUALS

Content: In addition to requirements in this Section, include operation data required in individual Specification Sections and equipment descriptions, operating standards, operating procedures, operating logs, wiring and control diagrams, and license requirements.

Descriptions: Include the following:

17. Product name and model number.

18. Manufacturer's name.

19. Equipment identification with serial number of each component.

20. Equipment function.

21. Operating characteristics.

22. Limiting conditions.

23. Performance curves.

24. Engineering data and tests.

25. Complete nomenclature and number of replacement parts.

Operating Procedures: Include startup, break-in, and control procedures; stopping and normal shutdown instructions; routine, normal, seasonal, and weekend operating instructions; and required sequences for electric or electronic systems.

Systems and Equipment Controls: Describe sequence of operation, and diagram controls as installed.

Piped Systems: Diagram piping as installed, and identify color-coding where required for identification.

PRODUCT MAINTENANCE MANUAL

Content: Organize manual into a separate section for each product, material, and finish. Include source information, product information, maintenance procedures, repair materials and sources, and warranties and bonds, as described below.

Source Information: List each product included in manual, identified by product name and arranged to match manual's table of contents. For each product, list name, address, and telephone number of Installer or supplier and maintenance service agent, and cross-reference Specification Section number and title in Project Manual.

Product Information: Include the following, as applicable:

26. Product name and model number.

27. Manufacturer's name.

28. Color, pattern, and texture.

29. Material and chemical composition.

30. Reordering information for specially manufactured products.

Maintenance Procedures: Include manufacturer's written recommendations for inspection procedures, types of cleaning agents, methods of cleaning, schedule for cleaning and maintenance, and repair instructions.

Repair Materials and Sources: Include lists of materials and local sources of materials and related services.

Warranties and Bonds: Include copies of warranties and bonds and lists of circumstances and conditions that would affect validity of warranties or bonds.

SYSTEMS AND EQUIPMENT MAINTENANCE MANUAL

Content: For each system, subsystem, and piece of equipment not part of a system, include source information, manufacturers' maintenance documentation, maintenance procedures, maintenance and service schedules, spare parts list and source information, maintenance service contracts, and warranty and bond information, as described below.

Source Information: List each system, subsystem, and piece of equipment included in the manual, identified by product name and arranged to match manual's table of contents. For each product, list name, address, and telephone number of Installer or supplier and maintenance service agent, and cross-reference Specification Section number and title in Project Manual.

Manufacturers' Maintenance Documentation: Manufacturers' maintenance documentation including maintenance instructions, drawings and diagrams for maintenance, nomenclature of parts and components, and recommended spare parts for each component part or piece of equipment.

Maintenance Procedures: Include test and inspection instructions, troubleshooting guide, disassembly instructions, and adjusting instructions, and demonstration and training videotape if available,] that detail essential maintenance procedures.

Maintenance and Service Schedules: Include service and lubrication requirements, list of required lubricants for equipment, and separate schedules for preventive and routine maintenance and service with standard time allotment.

Spare Parts List and Source Information: Include lists of replacement and repair parts, with parts identified and cross-referenced to manufacturers' maintenance documentation and local sources of maintenance materials and related services..

Maintenance Service Contracts: Include copies of maintenance agreements with name and telephone number of service agent.

Warranties and Bonds: Include copies of warranties and bonds and lists of circumstances and conditions that would affect validity of warranties or bonds.

EXECUTION

MANUAL PREPARATION

Emergency Manual: Assemble a complete set of emergency information indicating procedures for use by emergency personnel and by Government operating personnel for types of emergencies indicated.

Product Maintenance Manual: Assemble a complete set of maintenance data indicating care and maintenance of each product, material, and finish incorporated into the Work.

Operation and Maintenance Manuals: Assemble a complete set of operation and maintenance data indicating operation and maintenance of each system, subsystem, and piece of equipment not part of a system.

Manufacturers' Data: Where manuals contain manufacturers' standard printed data, include only sheets pertinent to product or component installed. Mark each sheet to identify each product or component incorporated into the Work. If data include more than one item in tabular format, identify each item using appropriate references from the Contract Documents. Identify data applicable to the Work and delete references to information not applicable.

Drawings: Prepare drawings supplementing manufacturers' printed data to illustrate relationship of component parts of equipment and systems and to illustrate control sequence and flow diagrams. Coordinate these drawings with information contained in Record Drawings to ensure correct illustration of completed installation.

31. Do not use original Project Record Documents as part of operation and maintenance manuals.

Comply with Division 1 Section "Closeout Procedures" for the schedule for submitting operation and maintenance documentation.

END OF SECTION 017820

OPERATION AND MAINTENANCE DATA 017820-5

USDA FOREST SERVICE, R4

Soda Springs District Office HVAC Modifications

SECTION 230593 - TESTING, ADJUSTING, AND BALANCING FOR HVAC

1. GENERAL

SUMMARY, Section Includes:

Balancing Air Systems: Constant-volume air systems.

DEFINITIONS

AABC: Associated Air Balance Council.

NEBB: National Environmental Balancing Bureau.

TAB: Testing, adjusting, and balancing.

TABB: Testing, Adjusting, and Balancing Bureau.

TAB Specialist: An entity engaged to perform TAB Work.

MEASUREMENT & PAYMENT

No separate payment will be made for the work included under this section; rather payment shall be considered to be included in the items of work listed in the Schedule of Items.

SUBMITTALS

Strategies and Procedures Plan: Within 60 days of Contractor's Notice to Proceed, submit TAB strategies and step-by-step procedures as specified in "Preparation" Article.

Certified TAB reports.

QUALITY ASSURANCE

TAB Contractor Qualifications: Engage a TAB entity certified by AABC, NEBB or TABB.

1. TAB Field Supervisor: Employee of the TAB contractor and certified by AABC, NEBB or TABB.

2. TAB Technician: Employee of the TAB contractor and who is certified by AABC, NEBB or TABB as a TAB technician.

Certify TAB field data reports and perform the following:

3. Review field data reports to validate accuracy of data and to prepare certified TAB reports.

4. Certify that the TAB team complied with the approved TAB plan and the procedures specified and referenced in this Specification.

TAB Report Forms: Use standard TAB contractor's forms approved by the Engineer.

Instrumentation Type, Quantity, Accuracy, and Calibration: As described in ASHRAE 111, Section 5, "Instrumentation."

ASHRAE Compliance: Applicable requirements in ASHRAE 62.1, Section 7.2.2 - "Air Balancing."

ASHRAE/IESNA Compliance: Applicable requirements in ASHRAE/IESNA 90.1, Section 6.7.2.3 - "System Balancing."

PRODUCTS (Not Applicable)

EXECUTION

EXAMINATION

Examine the Contract Documents to become familiar with Project requirements and to discover conditions in systems' designs that may preclude proper TAB of systems and equipment.

Examine systems for installed balancing devices, such as test ports, gage cocks, thermometer wells, flow-control devices, balancing valves and fittings, and manual volume dampers. Verify that locations of these balancing devices are accessible.

Examine the approved submittals for HVAC systems and equipment.

Examine design data including HVAC system descriptions, statements of design assumptions for environmental conditions and systems' output, and statements of philosophies and assumptions about HVAC system and equipment controls.

Examine equipment performance data including fan curves.

5. Relate performance data to Project conditions and requirements, including system effects that can create undesired or unpredicted conditions that cause reduced capacities in all or part of a system.

6. Calculate system-effect factors to reduce performance ratings of HVAC equipment when installed under conditions different from the conditions used to rate equipment performance. To calculate system effects for air systems, use tables and charts found in AMCA 201, "Fans and Systems," or in SMACNA's "HVAC Systems - Duct Design." Compare results with the design data and installed conditions.

Examine system and equipment installations and verify that field quality-control testing, cleaning, and adjusting specified in individual Sections have been performed.

Examine test reports specified in individual system and equipment Sections.

Examine HVAC equipment and filters and verify that bearings are greased, belts are aligned and tight, and equipment with functioning controls is ready for operation.

Examine terminal units, such as fan coil units and branch selector boxes, and verify that they are accessible and their controls are connected and functioning.

Examine strainers. Verify that startup screens are replaced by permanent screens with indicated perforations.

Examine heat-transfer coils for correct piping connections and for clean and straight fins.

Examine operating safety interlocks and controls on HVAC equipment.

Report deficiencies discovered before and during performance of TAB procedures. Observe and record system reactions to changes in conditions. Record default set points if different from indicated values.

PREPARATION

Prepare a TAB plan that includes strategies and step-by-step procedures.

Complete system-readiness checks and prepare reports. Verify the following:

7. Permanent electrical-power wiring is complete.

8. Automatic temperature-control systems are operational.

9. Equipment and duct access doors are securely closed.

10. Balance dampers are open.

11. Isolating valves are open and thermal expansion valves are operational.

12. Ceilings are installed in critical areas where air-pattern adjustments are required and access to balancing devices is provided.

13. Windows and doors can be closed so indicated conditions for system operations can be met.

GENERAL PROCEDURES FOR TESTING AND BALANCING

Perform testing and balancing procedures on each system according to the procedures contained in AABC's "National Standards for Total System Balance", NEBB's "Procedural Standards for Testing, Adjusting, and Balancing of Environmental Systems", or SMACNA's "HVAC Systems - Testing, Adjusting, and Balancing" and in this Section.

14. Comply with requirements in ASHRAE 62.1, Section 7.2.2 - "Air Balancing."

Cut insulation, ducts, pipes, and equipment cabinets for installation of test probes to the minimum extent necessary for TAB procedures.

15. After testing and balancing, patch probe holes in ducts with same material and thickness as used to construct ducts.

16. Install and join new insulation that matches removed materials. Restore insulation, coverings, vapor barrier, and finish according to Section 230713 "Duct Insulation" and Section 230719 "HVAC Piping Insulation."

Mark equipment and balancing devices, including damper-control positions, and similar controls and devices, with paint or other suitable, permanent identification material to show final settings.

Take and report testing and balancing measurements in inch-pound (IP)) units.

GENERAL PROCEDURES FOR BALANCING AIR SYSTEMS

Prepare test reports for both fans and outlets. Obtain manufacturer's outlet factors and recommended testing procedures. Crosscheck the summation of required outlet volumes with required fan volumes.

Prepare schematic diagrams of systems' "as-built" duct layouts.

Determine the best locations in main and branch ducts for accurate duct-airflow measurements.

Locate start-stop and disconnect switches, electrical interlocks, and motor starters.

Verify that motor starters are equipped with properly sized thermal protection.

Check dampers for proper position to achieve desired airflow path.

Check for airflow blockages.

Check condensate drains for proper connections and functioning.

Verify that air duct system is sealed as specified in Section 233113 "Metal Ducts."

PROCEDURES FOR CONSTANT-VOLUME AIR SYSTEMS

Adjust fans to deliver total indicated airflows within the maximum allowable fan speed listed by fan manufacturer.

17. Measure total airflow.

Where sufficient space in ducts is unavailable for Pitot-tube traverse measurements, measure airflow at terminal outlets and inlets and calculate the total airflow.

18. Measure fan static pressures as follows to determine actual static pressure:

Measure outlet static pressure as far downstream from the fan as practical and upstream from restrictions in ducts such as elbows and transitions.

Measure static pressure directly at the fan outlet or through the flexible connection.

Measure inlet static pressure of single-inlet fans in the inlet duct as near the fan as possible, upstream from the flexible connection, and downstream from duct restrictions.

Measure inlet static pressure of double-inlet fans through the wall of the plenum that houses the fan.

19. Review Record Documents to determine variations in design static pressures versus actual static pressures. Calculate actual system-effect factors. Recommend adjustments to accommodate actual conditions.

20. Obtain approval from Engineer for adjustment of fan speed higher or lower than indicated speed. Comply with requirements in Sections for air-handling units for adjustment of fans, belts, and pulley sizes to achieve indicated air-handling-unit performance.

21. Do not make fan-speed adjustments that result in motor overload. Consult equipment manufacturers about fan-speed safety factors. Modulate dampers and measure fan-motor amperage to ensure that no overload will occur. Measure amperage in full-cooling, full-heating, economizer, and any other operating mode to determine the maximum required brake horsepower.

Adjust volume dampers for main duct, submain ducts, and major branch ducts to indicated airflows within specified tolerances.

22. Measure airflow of submain and branch ducts.

Where sufficient space in submain and branch ducts is unavailable for Pitot-tube traverse measurements, measure airflow at terminal outlets and inlets and calculate the total airflow for that zone.

23. Measure static pressure at a point downstream from the balancing damper, and adjust volume dampers until the proper static pressure is achieved.

24. Remeasure each submain and branch duct after all have been adjusted. Continue to adjust submain and branch ducts to indicated airflows within specified tolerances.

Measure air outlets and inlets without making adjustments.

25. Measure terminal outlets using a direct-reading hood or outlet manufacturer's written instructions and calculating factors.

Adjust air outlets and inlets for each space to indicated airflows within specified tolerances of indicated values. Make adjustments using branch volume dampers rather than extractors and the dampers at air terminals.

26. Adjust each outlet in same room or space to within specified tolerances of indicated quantities without generating noise levels above the limitations prescribed by the Contract Documents.

27. Adjust patterns of adjustable outlets for proper distribution without drafts.

PROCEDURES FOR MOTORS

Motors, 1/2 HP and Larger: Test at final balanced conditions and record the following data:

28. Manufacturer's name, model number, and serial number.

29. Motor horsepower rating.

30. Motor rpm.

31. Efficiency rating.

32. Nameplate and measured voltage, each phase.

33. Nameplate and measured amperage, each phase.

34. Starter thermal-protection-element rating.

Motors Driven by Variable-Frequency Controllers: Test for proper operation at speeds varying from minimum to maximum. Test the manual bypass of the controller to prove proper operation. Record observations including name of controller manufacturer, model number, serial number, and nameplate data.

PROCEDURES FOR HEAT-TRANSFER COILS

Measure, adjust, and record the following data for each refrigerant coil:

35. Dry-bulb temperature of entering and leaving air.

36. Wet-bulb temperature of entering and leaving air.

37. Airflow.

38. Air pressure drop.

39. Refrigerant suction pressure and temperature.

TOLERANCES

Set HVAC system's air flow rates within the following tolerances:

40. Supply Fans and Equipment with Fans: Plus or minus 10 percent.

41. Air Outlets and Inlets: Plus or minus 10 percent.

REPORTING

Initial Construction-Phase Report: Based on examination of the Contract Documents as specified in "Examination" Article, prepare a report on the adequacy of design for systems' balancing devices. Recommend changes and additions to systems' balancing devices to facilitate proper performance measuring and balancing. Recommend changes and additions to HVAC systems and general construction to allow access for performance measuring and balancing devices.

Status Reports: Prepare biweekly progress reports to describe completed procedures, procedures in progress, and scheduled procedures. Include a list of deficiencies and problems found in systems being tested and balanced. Prepare a separate report for each system and each building floor for systems serving multiple floors.

FINAL REPORT

General: Prepare a certified written report; tabulate and divide the report into separate sections for tested systems and balanced systems.

42. Include a certification sheet at the front of the report's binder, signed and sealed by the certified testing and balancing engineer.

43. Include a list of instruments used for procedures, along with proof of calibration.

Final Report Contents: In addition to certified field-report data, include the following:

44. Fan curves.

45. Manufacturers' test data.

46. Field test reports prepared by system and equipment installers.

47. Other information relative to equipment performance; do not include Shop Drawings and product data.

General Report Data: In addition to form titles and entries, include the following data:

48. Title page.

49. Name and address of the TAB contractor.

50. Project name.

51. Project location.

52. Architect's name and address.

53. Engineer's name and address.

54. Contractor's name and address.

55. Report date.

56. Signature of TAB supervisor who certifies the report.

57. Table of Contents with the total number of pages defined for each section of the report. Number each page in the report.

58. Summary of contents including the following:

Indicated versus final performance.

Notable characteristics of systems.

Description of system operation sequence if it varies from the Contract Documents.

59. Nomenclature sheets for each item of equipment.

60. Data for terminal units, including manufacturer's name, type, size, and fittings.

61. Notes to explain why certain final data in the body of reports vary from indicated values.

62. Test conditions for fans and pump performance forms including the following:

Conditions of filters.

Cooling coil, wet- and dry-bulb conditions.

Fan drive settings including settings and percentage of maximum pitch diameter.

Other system operating conditions that affect performance.

System Diagrams: Include schematic layouts of air distribution systems. Present each system with single-line diagram and include the following:

63. Quantities of outdoor, supply, and return airflows.

64. Duct, outlet, and inlet sizes.

65. Fan coil.

66. Balancing stations.

67. Position of balancing devices.

ADDITIONAL TESTS

Within 90 days of completing TAB, perform additional TAB to verify that balanced conditions are being maintained throughout and to correct unusual conditions.

Seasonal Periods: If initial TAB procedures were not performed during near-peak summer and winter conditions, perform additional TAB during near-peak summer and winter conditions.

END OF SECTION 230593

TESTING, ADJUSTING, AND BALANCING FOR HVAC 230593-8

USDA FOREST SERVICE, R4

Soda Springs District Office HVAC Modifications

SECTION 262726 - WIRING DEVICES

1. GENERAL

SUMMARY

Section Includes:

1. General-use switches.

2. General-grade single straight-blade receptacles.

3. General-grade duplex straight-blade receptacles.

4. Receptacles with ground-fault protective devices.

5. Other devices.

SUBMITTALS

Product Data: Cutsheets for all devices proposed.

Operation and Maintenance Manual: Include the following:

6. Manufacturers' Instructions: Record copy of official installation and testing instructions issued to Installer by manufacturer for all devices installed under this section.

MEASUREMENT AND PAYMENT

No separate payment will be made for the work included under this section; rather payment shall be considered to be included in the items for work listed in the Schedule of Items.

PRODUCTS

DEVICE COLOR

Device color shall match color for nylon covers if allowed in Section 260533.16 “Boxes and Covers for Electrical Systems.”

OTHER DEVICES

Combination TV and Telephone Outlet:

7. Description: Single RJ-45 jack for terminating Category 5e, twisted pair cable complying with Section 260523 "Control-Voltage Electrical Power Cables" and a single BNC connector for terminating coaxial cable.

8. Comply with UL 1863.

EXECUTION

EXAMINATION

INSTALLATION

Comply with manufacturer's instructions.

Reference Standards:

9. Unless more stringent requirements are specified in Contract Documents or manufacturers' instructions, comply with installation instructions in NECA NEIS 130.

10. Mounting Heights: Unless otherwise indicated in Contract Documents, comply with mounting heights recommended in NECA NEIS 1.

Receptacle Orientation: Unless otherwise indicated in Contract Documents, orient receptacle to match configuration diagram in NEMA WD 6.

Do not install Type 3 SPD, including surge-protected relocatable taps and power strips, on branch circuit downstream of GFCI device.

Identification:

11. Identify cover or cover plate for device with panelboard identification and circuit number in accordance with Section 260553 "Identification for Electrical Systems."

FIELD QUALITY CONTROL

Tests and Inspections:

12. Perform tests and inspections in accordance with manufacturers' instructions.

13. Verify proper operation of all devices.

14. For receptacles perform the following tests:

Insert and remove test plug to verify that device is securely mounted.

Verify polarity of hot and neutral pins.

Measure line voltage.

Measure percent voltage drop at half rated load.

Measure grounding circuit continuity; impedance must be not greater than 2 ohms.

Nonconforming Work:

15. Unit will be considered defective if it does not pass tests and inspections.

16. Remove and replace defective units and retest.

Assemble and submit test and inspection reports.

PROTECTION

Devices:

17. Schedule and sequence installation to minimize risk of contamination of wires and cables, devices, device boxes, outlet boxes, covers, and cover plates by plaster, drywall joint compound, mortar, cement, concrete, dust, paint, and other materials.

18. After installation, protect wires and cables, devices, device boxes, outlet boxes, covers, and cover plates from construction activities. Remove and replace items that are contaminated, defaced, damaged, or otherwise caused to be unfit for use prior to acceptance by Owner.

END OF SECTION 262726

WIRING DEVICES 262726-3