LGA AND ZNY SOW draft.pdf

La Guardia Air Traffic Control Tower and Base Building And NY Air Route Traffic Control Center

Fire Protection System Periodic Inspections, Testing and Maintenance

1.0 OVERVIEW

Provide all labor, tools, equipment, and material to perform and document fire protection system testing and periodic (preventative) maintenance specified in this contract. The scope of this contract covers all testing and preventive maintenance work on the fire protection systems at the locations listed in 1.1 below.

**NOTE** this contract will NOT cover the following activities and systems:

a. Corrective maintenance

b. Building controls system

c. Piping and ducting external to units

1.1 LOCATIONS

All work under this contract will be performed at the following Federal Aviation Administration sites:

a. LaGuardia Airport Air Traffic Control Tower (Building 100) Flushing, New York 11371

b. Base Building (Building 99) Flushing, New York 11371

c. New York Air Route Traffic Control Center (NY ARTCC) 4205 Johnson Ave.

Ronkonkoma, NY 11779

1.2 PERIOD OF PERFORMANCE - Base plus four option years

Base: October 1, 2024, to September 30, 2025 Option Year One: October 1, 2025, to September 30, 2026 Option Year Two: October 1, 2026 to September 30, 2027 Option Year Three: October 1, 2027, to September 30, 2028 Option Year Four: October 1, 2028 to September 30, 2029

1.3 EQUIPMENT

1.2.1 LaGuardia Airport ATCT& Base Building

a. Fire Detection and Alarm System including all Fire Detection Systems Wiring, Conduits, Sensors, Fixtures, Main Panel, auxiliary Panels and Equipment

b. Fire Sprinkler System (Dry Pipe and Wet Pipe) including all Sprinkler Piping, Fixtures, Wiring, Conduit, Sensors, Fittings, Valves, Switches, Hoses, Nozzles, Standpipes and Gages.

c. Fire Pump System

d. Stair Pressurization System

e. Fire Hydrant

f. Fire Department Connections

g. Backflow Preventer

h. Fire Doors

i. Fire Dampers

1.2.2 NY ARTCC

Simplex 4100U Fire Alarm System

a. 54 Duct Detector

b. 35 Heat Detector: Restorable

c. 700 Smoke Detectors

d. 64 Fire Alarm Boxes (Manual Pull Station)

e. Elevator Shunt Trip Test/Per Bank

f. 6 Vesda Early Detection Device

g. 24 Sprinkler Water Flow Switch Electrical ONLY

h. 28 Sprinkler Tamper Switch Electrical ONLY

i. 6 Door Closer/Holder

j. 145 Fire Alarm Audio Visual Device (A/V)

k. Approximately 1,000 devices consisting of smoke detectors, heat detectors, manual pull stations, tamper switches on OS&Y valves, horns and strobe lights.

2.0 REQUIREMENTS

2.1 DOCUMENTATION

2.1.1 Contractor must provide copies of all applicable worker certificates to building owner. Contractor employees must have required licenses and credentials to perform fire protection testing, maintenance and repair work at this location.

2.1.2 All work under this contract must be documented on the appropriate forms as required by NFPA and PANYNJ documents. A copy of all test results, documents and all other deliverables required by code must be furnished to the FAA within seven (7) calendar days of tests being performed.

Explanations of any failures or deficiencies found must also be provided.

2.2 Follow all applicable codes for work specified herein for each respective location including OSHA, USEPA, New York State, New York City, Port Authority of NY & NJ, Bohemia Fire Department, NFPA, and FAA Order 6930.1 B - Maintenance of Fire Prevention and Maintenance of Fire Protection Systems.

2.3 Contractor must work with the FAA and follow appropriate system Lock Out/Tag Out procedures when working on systems.

2.4 When available, contractor must use original equipment manufacturer (OEM) replacement parts.

2.5 Contractor access to drawings, design data manuals, and manufacturer books will be provided to the contractor. Copies of the following FAA maintenance orders are available onsite and copies will be provided to the contractor upon request:

2.5.1 The Fire Protection System interfaces with the following offices/equipment:

a. The Port Authority of New York and New Jersey LaGuardia Crash Fire Rescue Facility

b. The facility elevators

2.5.2 The Contractor must coordinate with the FAA COR and make all required advance notifications prior to the start of work on site. The Contractor must coordinate all work a minimum of 14 calendar days in advance of the work occurring.

2.6 The latest editions of the following documents are made a part of this specification by reference:

NFPA 25, "Standard for the Inspection, Testing, and Maintenance of Water Based Fire Protection Systems" NFPA 72, "National Fire Alarm Code."

NFPA 92A, "Recommended Practice for Smoke Control Systems" NFPA 90A. "Installation of Air-Conditioning and Ventilating Systems" PANYNJ Fire Life Safety Manual

3.0 SCHEDULE

All scheduled testing and maintenance to be complete by the end date specified below. The contractor must generate a testing and maintenance schedule covering the full term of the contract and submit it to the COR for approval prior to the Notice-To-Proceed.

3.1 All quarterly, semi-annual, annual, and 5 year testing time periods begin reference the 1st of the month following the date the contract is signed. The perform dates must be as follows:

a. Quarterly Testing and Maintenance: Between the 1st and the 30th of the second month of the quarter. For February, work must be completed by the 28th of the month.

b. Semi-Annual Testing and Maintenance: Between the 61st day and the 120th day of the six-month period.

c. Annual Testing and Maintenance: Must be completed by December 31st of current year

d. Fall Service Maintenance: Must be performed with the 4th quarter maintenance.

e. Spring Service Maintenance: Will be performed with the 2nd quarter maintenance.

f. Two (2) Year Testing of Fire Protection Systems.

g. Three (3) Year testing of Fire Protection Systems

h. Five (5) Year Testing of Fire Protection Systems. (Next 5-year test required in 2020.)

3.2 LaGuardia

Most work will be performed between 7:00 A.M. and 3:30 P.M. Local time, Monday through Friday, except for any activity involving the Air Traffic Control Tower Cab, the Cab exit stairway, and the Engine Generator back up power system. Activities impacting the cab with audible and visual alarms, the exit stairway and work requiring the activation of the engine generator system must be performed between 12:00 AM (midnight) and 5:00 AM (0500) Local time.

3.3 NY ARTCC

All work is to be accomplished during the week starting at 10:00 p.m. The work schedule will be coordinated with the COR. An FAA employee must be present at all times during the performance of this contract.

4.0 INSPECTION, TESTING, AND REPAIRS

4.1 INSPECTION

a. Furnish all labor, materials, and tools to inspect all systems and perform preventative maintenance as specified.

b. The contractor must provide to the FAA written results of all inspection and maintenance activities within seven days of the performance of the work. The contractor must maintain a log of all contract inspection and maintenance activities. Document all activities as follows:

Date/Time, Task, Resolution, Status, and Technician Name. The Contractor must provide a copy of all reports, test results and logs to the respective CORs documenting all visits.

c. The contractor must follow manufacturer recommended maintenance procedures.

d. The contractor must follow all Building Code, PANYNJ Requirements and NFPA

Requirements for Inspections of Fire Life Safety Systems specified for each location.

4.2 TESTING

a. Furnish all labor, materials, equipment & tools to perform fire life safety testing of the Fire Alarm System, Stair Pressurization System, Wet Sprinkler System, Dry Sprinkler System, Fire Hydrants, Fire Dept. connections, Fire Pumps, Elevator Recall functions, Fire Doors, Fire Dampers, etc. as required by the NFPA, NYC Fire Code and Port Authority of NY & NJ Fire Life Safety Requirements and documents.

b. Provide the FAA written reports of all testing performed to include the completion of all PANYNJ or Contractor equivalent test sheets.

c. Document and perform all repair activities to any system that fails testing as required by this section. Re-test all repaired/replaced parts and systems both individually and as part of the overall sub-system and system as required by Code.

d. All test reports must be reviewed and signed by an individual capable of signing for the company.

e. All test reports must be submitted to the FAA within 7 business days of test.

f. Test reports must be submitted electronically in Adobe (pdf) format and 3 hard copies by mail

4.3 REPAIRS

Provide a cost estimate to the Contracting Officer (CO) and obtain CO approval prior to performing any non-life-threatening repairs. Repairs that are critical to Fire Life Safety will be documented and performed immediately so as not to jeopardize the occupants of this facility.

5.0 PERIODIC MAINTENANCE TASKS

REFERENCE MANUFACTURERS MANUALS AND FAA ORDER 6930.18 FOR DETAILED FAA

MAINTENANCE TASK PROCEDURES.

5.1 SPRINKLER SYSTEMS Reference Paragraph 402d.

Sprinkler Systems. Sprinkler system inspection, maintenance and testing are covered by NFPA 25, "Standard for the Inspection, Testing, and Maintenance of Water Based Fire Protection Systems", latest edition.

5.1.1 Quarterly

a. Waterflow alarm devices will be checked quarterly according to NFPA 25

b. Test low air pressure alarms on preaction and dry pipe valves

c. Quick opening devices such as accelerators on dry pipe systems must be tested quarterly in accordance with the procedure in NFPA 25

d. Test priming water levels on dry pipe and preaction valves

e. Fire Department Connections

5.1.2 Semiannually

a. Test water flow rate through main test (drain) valve. Record pressure on FAA Form 6000-8, with valve closed and with valve fully open. NFPA 25 recommends that main drain valves be tested annually and after any work has been done on a sprinkler system. Main drain valves will be tested for wet pipe, preaction, and dry pipe sprinkler systems. The following procedure is recommended by NFPA 25:

1. Record the water pressure from the gage that shows incoming water pressure.

2. Close the alarm control valve on alarm check valves.

3. Check to see where the water discharge from the main drain will flow. Care will be taken to ensure landscaping, vehicles, or pedestrians will not be in the path of discharging water. Avoid discharging water on walkways during freezing weather.

4. Fully open the main drain valve.

5. After the flow has stabilized, record the water pressure while water is still flowing.

6. Close the main drain valve slowly.

7. Open the alarm control valve.

b. Test all water flow alarm devices. NFPA 25 recommends that water flow alarms be tested quarterly.

c. Test all alarm, supervisory, and trouble signaling devices and systems. NFPA 72 covers the maintenance, inspection and testing of alarm initiating and supervisory devices. Semiannual testing is acceptable for valve tamper and other supervisory signal devices.

d. Check condition of sprinklers. NFPA 25 recommends annual inspection of sprinklers. Check for:

1. Cleanliness

2. Free from corrosion and dirt.

3. Not painted or whitewashed.

4. Not bent or damaged.

5. Free from obstructions; no material must be placed or stored within 18 inches of sprinkler heads.

6. Properly rated.

7. Required spares available.

e. Test operation of deluge and automatic valves in conjunction with testing of alarm devices and systems. NFPA 25 recommends that the priming water level for preaction and dry pipe valves be tested quarterly in accordance with the manufacturer's instructions or as follows:

1. Open the priming level test valve.

2. If water flows, drain it.

3. Close the valve when water stops flowing and air discharges.

4. If air initially discharges when the valve is opened, the priming water level is probably too low. Add priming water in accordance with the manufacturer's directions.

5.1.3 Annually

a. Test operation of dry pipe valves. Clean and adjust as required. NFPA 25 recommends that both preaction and dry pipe valves be trip tested annually. "Dry" trip tests may be done annually as long as a full "wet" trip test is done every three years. Annually, the interior of each dry pipe valve and preaction valve must be inspected, parts examined and cleaned, and any required repairs made.

b. Check operation of sprinkler system that protects cooking equipment and ventilation systems. NFPA 96 recommends a semiannual inspection of extinguishing systems that protect cooking equipment. Fusible link activated sprinkler heads will be replaced annually.

c. Check and clean all sprinklers that protect cooking equipment and ventilation systems.

Clean other actuating devices.

d. Check all gages with an inspector's gage to ensure reliability NFPA 25 recommends that gages be replaced every five years or tested every five years with a comparison to a calibrated gage.

e. Test all outside or open sprinkler equipment. NFPA 25 recommends testing open sprinklers connected to a deluge control valve at full flow. Any plugged sprinklers or piping must be cleaned or replaced, and a visual inspection will be done of sprinkler pipe and fittings. Pipe and fittings must be in good condition and free from mechanical damage, leakage, corrosion, and misalignment. Piping must be free from external loading. Storage on piping or attachment to sprinkler piping must not be allowed.

f. Sprinkler pipe hangars and seismic sway bracing must be visually inspected to ensure hangers and bracing are not loose or otherwise damaged.

g. Check to see that a stock of spare sprinklers is available to match existing building systems.

h. Conduct a main drain test (see procedure under Semi-annual testing).

i. Test freezing point of antifreeze solutions and add solution as needed.

j. Low point drains in dry pipe sprinkler systems must be drained after each operation and before the onset of freezing weather.

k. Automatic air-pressure maintenance devices must be tested annually if provided on dry pipe systems.

l. Inquiry will be done to see if a possible source of obstruction to sprinkler piping has been introduced. If so, an obstruction prevention investigation will be undertaken as outlined in

NFPA 25.

5.1.4 Three (3) Year Tests

Dry Pipe Valve - Full "WET" trip test is done every three years.

5.1.5 Five (5) Year Tests

a. Strainers, filters, and restriction orifices for preaction valves, alarm check valves, and dry pipe valves must be inspected internally and replaced if necessary. Checks more frequent than every five years may be needed depending on the source of fire protection water.

b. Check valves will be internally inspected and cleaned every 5 years

c. Gages must be either replaced or checked against a calibrated gage every 5 years

5.1.6 Spring Service Maintenance

a. Open all cold weather-related valves.

b. Check condition of outside sprinkler systems. Perform repairs as necessary.

5.1.7 Fall Service Maintenance

a. Close all cold weather valves and check drainage of outside sprinkler systems. Dry pipe valve systems will have their low point drains blown out and the piping will be checked for air leaks. Air leaks that result in pressure losses greater than 1O psi per week will be located and repaired.

b. Check and repair all protective heating equipment.

c. Check antifreeze solutions.

d. Protect all valve pits against water seepage and freezing

5.2 STANDPIPE AND HOSE SYSTEMS

5.2.1 Quarterly

a. Components of standpipe and hose systems will be visually inspected quarterly in accordance with NFPA 25. Components include piping, hangars, bracing, hose valves, and pressure reducing valves.

b. Waterflow alarm devices will be tested quarterly.

5.2.2 Semiannually

a. Test all water flow alarm devices (quarterly in accordance with NFPA 25).

b. Test all alarm, supervisory, and trouble signaling devices and systems.

c. Check all hose valves for leakage.

5.2.3 Annually

a. Check all gages with an inspector's gage to ensure reliability

b. Unrack and check all hoses for possible water damage. Replace damaged hoses.

c. Annually all nozzles, couplings, and other hose accessories must be inspected in accordance with NFPA 1962.

d. Inspect all fire department connections. NFPA 25 recommends quarterly inspections for fire department connections.

5.2.4 Three (3) Year Test

a. Every three years: Occupant use fire hoses (1 Yz" diameter) must be removed and service tested in accordance with NFPA 1962 after the first 5 years & then every 3 years thereafter.

5.2.5 Five (5) Year Hydrostatic Test (to be completed in 2020)

a. Dry standpipes and dry portions of wet standpipes must have a hydrostatic test done every 5 years in accordance with NFPA 25

b. A flow test is required every five years on all standpipes at the hydraulically most remote hose connection. The test must verify that the water supply adequately provides the design pressure at the required flow.

5.3 PRESSURE REDUCING AND REGULATING VALVES (HOSES AND SPRINKLER)

5.3. Quarterly.

Sprinkler and fire hose pressure reducing control valves must be inspected for the following:

a. Each sprinkler valve is in the open position.

b. There is no leakage from the valve.

c. Downstream pressures are in accordance with the design criteria.

d. The valve handwheels are in good condition and not broken.

e. Outlet hose threads are not damaged on hose connections.

f. The reducer and cap are not missing on hose connections.

5.3.2 Annually.

A partial flow test must be completed to move the valve from its seat.

5.3.3 Five (5) Year Test

A full flow test must be conducted on each valve with the results compared to previous results.

If results do not compare, adjustments will be made in accordance with the manufacturer's instructions

5.4 FIRE PROTECTION WATER BACKFLOW PREVENTION ASSEMBLIES

5.4.1 Annually

a. A forward flow test must be conducted at the fire protection system demand including hose streams at a test point downstream from the backflow preventer. If full fire flow cannot be achieved, the test must be performed at the highest flow possible.

b. A backflow performance test as required by the local authority having jurisdiction is done by others and not included in this contract.

5.5 OTHER FIRE APPARATUS AND FIRE-PREVENTION EQUIPMENT.

5.5.1 Fire Pumps

5.5.1.1 Semiannually. NFPA 25 recommends that the following items be completed. Document all findings.

a. Check pump prime and clean out suction piping strainers and cleanouts.

b. Operate the manual starting means for each fire pump.

c. Check the antifreeze protection level.

5.5.1.2 Annually (refer also to NFPA 25).

a. Test pump at full rated capacity and pressure. Pump will be tested at minimum, rated, and peak flow.

b. Check relief valve setting and watch for discharge at no flow condition.

c. Change lubricating oil in all engine-driven pumps.

d. Lubricate pump bearings.

e. Check pump shaft end play.

f. Check accuracy of pressure gages and sensors.

g. Lubricate coupling and right-angle gear drive (if provided).

h. Trip circuit breaker if mechanism available.

i. Inspect and operate emergency manual starting means (see NFPA 25).

5.5.2 Fire Hydrant (both wet and dry-barrel hydrants). The following items will be inspected on an annual basis and after each operation:

a. Inspect hydrant, lubricate, paint, and replace all worn, damaged, and missing parts.

b. Check for the availability of proper tools and equipment required for hydrant maintenance.

c. Test hydrant barrel drain and shutoff valve.

d. Check condition of hydrant operating nut.

e. Check for worn or stripped nozzle threads.

f. Make sure that all nozzle caps can be easily removed.

5.5.3 Underground Private Fire Service Mains. Annually, check to ensure that no portions of underground fire service water mains are exposed. There must be no evidence of water leakage.

5.5.4 Fire Department Connections. The following items will be inspected on a quarterly basis:

a. Each connection will be visible and accessible.

b. Couplings and swivels will be undamaged and rotate smoothly.

c. All plugs, caps, and gaskets will be in place and in good condition.

d. Identification signs will be in place and visible.

e. Check valves will not be leaking.

f. The automatic drain valve will be in place and operating properly.

5.5.5 Fire Alarm and Detection Systems. Inspection, testing, and maintenance must follow the recommended procedures given in NFPA 72, "National Fire Alarm Code." Document all findings and results and provide copies to the FAA.

5.5.5.1 Quarterly

a. Test sprinkler water-flow alarm switches by flowing water through the remote inspector test drain on wet pipe systems and the bypass alarm valve on preaction, dry pipe, and deluge systems.

b. Check to ensure that alarm system components such as detectors, manual pull boxes, and alarm panels are accessible and free of obstructions.

5.5.5.2 Semiannually

a. Test alarm system supervisory signals including high/low air pressure switches, room-temperature switches, and water-tank level switches.

b. Test valve-tamper switches to ensure trouble signals are being reported in the event of valve movement from normal position.

5.5.5.3 Annually

a. Test to confirm that all alarm, trouble, and supervisory signals are properly being sent to the local fire alarm panel, and if applicable, being sent and received at the supervising central alarm station.

b. Test and verify each fire alarm circuit including signaling, notification appliance, and indicating device circuits for ground faults and open circuits.

c. Test the power supply to the alarm panel for proper supervision including loss of AC power and transfer to battery back-up.

d. Conduct a voltage test of the batteries in the fire alarm panel.

e. Conduct the specified battery tests as indicated in NFPA 72 for the specific battery including lead-acid type, nickel cadmium type, and sealed lead-acid type.

f. Conduct a functional heat test on all heat detectors except that non-restorable fixed temperature heat detectors that are less than 15 years old will not be tested using a heat source.

g. Conduct a functional test on all smoke detectors for both alarm and trouble. Verify that all signals are received at the local fire alarm control panel.

h. Test all manual fire alarm pull boxes.

i. Test all audible devices such as horns and bells to ensure that each device is functioning.

Record the sound pressure level during testing.

j. Test all visual devices such as strobes. Check to ensure that occupancy changes within the facility have not obstructed the ability for occupants to see the visual devices.

k. Visually inspect and clean if necessary, all air duct detectors. Test each detector to ensure proper receipt of trouble and alarm notification at the local fire alarm control panel.

I. Test other detection devices such as air sampling, flame, and projected beam detectors in accordance with NFPA 72.

m. Test all interlocked devices to the fire alarm system such as door closures, fan shut-off or start-ups, elevator recall, power shutdown, etc., for proper activation following alarm system activation. Test to ensure that the proper sequence of events occur following receipt of an alarm at the local fire alarm control panel.

n. Test the Digital Alarm Communicator Transmitter (DACT) by testing for line seizure while initiating an alarm signal while using the primary line for a telephone call. Transmission to the central station via the DACT must be within 90 seconds. The primary and secondary lines from the DACT must also be tested for proper supervision by disconnecting each line and ensuring that trouble transmission to the supervising station occurs within 4 minutes.

5.5.6 Fire/Smoke Dampers - Inspection, testing, and maintenance must follow the recommended procedures given in NFPA 80, "Standards for Fire Doors and Other Opening Protectives." Document all findings and results and provide copies to the FAA.

5.5.6.1 Every 4 Years

a. Test fire dampers as per Section 19.5 of NFPA 80, "Standards for Fire Doors and Other

Opening Protectives."

b. Combination Fire/smoke dampers must also meet the requirements contained in NFPA 105.

5.5.7 Fire Doors-. Inspection, testing, and maintenance must follow the recommended procedures given in NFPA 80, "Standards for Fire Doors and Other Opening Protectives." Document all findings and results and provide copies to the FAA.

5.5.7.1 Annually

a. Ensure labels are clearly visible and legible.

b. Ensure no open holes or breaks exist in surfaces of either the door or frame.

c. Ensure Glazing, vision light frames, and glazing beads are intact and securely fastened in place, if so equipped.

d. Ensure the door, frame, hinges, hardware and noncombustible.

e. Ensure no parts are missing or broken.

f. Ensure door clearances do not exceed clearances listed in NFPA 80 4.8.4 and 5.3.1.7,

g. Ensure self-closing devices are operational, that is the active door completely closes when operated from the fully open position.

h. Ensure a coordinator is installed, the inactive sheaf closes before the active sheaf.

i. Ensure latching hardware operates and secures the door when it is in the closed position.

j. Ensure auxiliary hardware items that interfere or prohibit operation are not installed on the door or frame.

k. Ensure no field modifications to the door assembly have been performed that void the label.

l. Ensure meeting edge protection, gasketing, and edge seals where required, are inspected to verify their presence and integrity.

m. Ensure signage is affixed to a door meeting the requirements listed in NFPA 80 Section 4.1.4.

threshold re-secured, aligned and in working order with no visible signs of damage.

5.5.8 Smoke Removal Systems. NFPA 92A, "Recommended Practice for Smoke Control Systems" will be used for the inspection, testing, and maintenance, of smoke control systems, including stair pressurization. NFPA 90A. "Installation of Air-Conditioning and Ventilating Systems" will be followed for components of air movement systems including ducting, fans, air cooling and heating equipment, and fire and smoke dampers.

5.5.8.1 Quarterly

a. Inspect ducts to determine the amount of dust and other accumulations within ductwork.

Ducts will be cleaned regularly to reduce build-up of dust, which could contribute to fire spread within ductwork.

b. Inspect and replace filters if needed based upon the amount of build-up on filters.

c. Check for accumulations of combustible material near the duct air intakes. The air intake louvers should be free of blockage.

d. Check fans and fan motors and clean and lubricate if necessary. Fans and fan belt drives should be kept in alignment to avoid motor overheating or premature belt failure.

5.5.8.2 Semiannually. Dedicated smoke control systems such as stair pressurization systems in Air Traffic Control Towers should be tested to ensure the following:

a. The smoke control system starts through the input of the fire alarm system such as detectors or manual pull boxes.

b. All dampers function as intended in the original design.

c. All door closures function properly.

5.5.8.3 Annually

a. Test to ensure that the standby power source for both dedicated and non-dedicated smoke control systems function as designed.

b. Test all initiating devices for smoke control systems such as manual pull boxes and smoke detectors.

c. Test all manual controls and overrides at the smoke system control panel. Verify that all dampers function as intended.

d. At Air Traffic Control Towers with stair pressurization systems, measure the pressure differential between the occupied floor or vestibule in front of the entry door to the stairway at each level with the stair fan running. The pressure differential should be at least 0.05" water gage for towers with fire protection sprinklers and at least 0.10" water gage at non-sprinklered sites. Use a spring gage to measure the force required to open each entry door into the exit stairway with the stair fan running. The maximum force required to begin to open the door should not exceed 30 lb.

5.5.8.4 Every Two Years. Inspect all dampers every two years to ensure that they are not rusted or blocked. Inspect all hinges and other moving parts.

6.0 MANUFACTURER MAINTENANCE TASKS- These are additional tasks required by the equipment manufacturers. Reference applicable manufacturer's instruction books for details.

6.1 SIEMENS MXL/MXLV Control Panel Operation Installation, and Maintenance Manual

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