Attachment 2 UFC 3-601-02 Tables.pdf

UFC 3-601-02

7 October 2021

2-2.7 Water Supply Tanks.

Technical guidance on these tasks is contained in NFPA 22, Standard for Water Tanks for Private Fire Protection, and NFPA 25.

Table 2-6 Water Supply Tanks ITM Tasks

Frequency Component Tasks Weekly (during freezing weather)

1. Tank Heating System (without electric supervision)

1. Verify water temperature.

2. Verify operability of tank heaters.

Monthly 1. Control Valves (without seals, locks, or electric supervision)

1. Verify proper valve position.

Quarterly 1. Water Level (without remote supervision of water level)

1. Verify proper water level in tank.

Before the Onset of Freezing Weather

1. Tank Fill Valve Enclosure Heating

1. Verify operability at the beginning of the heating season (annually for constant cold areas).

2. Low Temperature Alarm 1. Verify initiation and receipt of alarm at the beginning of the heating season.

Annually 1. Control Valves (sealed, locked, or electrically supervised)

1. Verify proper valve position.

2. Water Level (with remote electric supervision of water level)

1. Verify proper water level in tank.

3. Tank Heating System (with remote electric supervision of water temperature)

1. Verify operability of tank heater (prior to cold weather).

2. Test temperature alarms to verify proper operation. (Maintain thermometer in accordance with manufacturer’s recommendations.)

4. Tank 1. Inspect exterior for condition, damage, corrosion, and accessibility.

2. Verify air pressure (for pressure tanks).

5. Cathodic Protection 1. Inspect to ensure proper operation.

2 Years 1. Control Valves (including drain valves)

1. Operate valve through entire travel to verify function.

2. Lubricate valves to ensure operability.

3. Verify that valve supervisory switches detect a change in valve position.

2. Water Level Alarms and

Level Indicators

1. Test water level alarms to verify operability and set points.

Frequency Component Tasks

3. Automatic Fill Valve 1. Actuate valve automatically by lowering the water level in the tank.

2. Measure refill rate and record data.

4. Tank Vent 1. Inspect and clean tank vents.

3 Years 1. Tank (without cathodic protection)

1. Conduct internal tank inspection to determine condition and amount of corrosion.

5 Years 1. Tanks (with cathodic protection)

1. Conduct internal tank inspection to determine condition and amount of corrosion.

2. Pressure Gauges 1. Calibrate or replace gauges.

3. Check Valves 1. Inspect interior of valves.

4. Level Indicator Test 1. Calibrate level indicator.

5. Automatic Fill Valve 1. Perform internal inspection of automatic fill valve.

2-2.8 Fire Pumps.

Technical guidance on these tasks is contained in NFPA 20, Standard for the Installation of Stationary Pumps for Fire Protection, and NFPA 25. When generators are installed specifically to meet fire protection requirements, or generators are used to provide standby power for fire pumps, conduct all the requirements related to the engine drives on the generator engines. These requirements must not supersede requirements for generators serving demands other than fire protection. Generators serving both fire protection and other demands must conform to the most stringent guidance.

WARNING

Fire pump systems with redundant pumps must have all pumps and pump drivers in-service to meet redundancy requirements. Redundant pumps are not spare or stand-by pumps. Redundant pumps ensure the minimum number pumps will start if any minimum required pump fails to start. A redundant pump out-of-service means the pumping capacity is degraded- /impaired and any supported fire protection features downstream are also degraded/impaired. Two or more pumps out-of-service where redundancy means the pumping system is out-of-service as is all the supported fire protection features downstream. (Table 2-7, Tasks - Monthly 6.1)

WARNING

Fire pump stations without redundant pumps must have all pumps and pump drivers in-service. A pump or pump driver out-of-service means the pumping capacity is out-of-service and any supported fire protection features downstream is out-of-service. (Table 2-7, Tasks - Monthly 6.1)

Table 2-7 Fire Pumps ITM Tasks

Frequency Component Tasks Monthly 1. Pump House 1. Inspect for proper condition, ventilation, and heating.

2. Check packing leakage for proper water lubrication.

3. Verify proper drainage.

2. Control Valves and Isolation Valves (without seals, locks, or electric supervision)

1. Verify proper valve position.

3. Pressure Gauges 1. Check reading and verify gauge operability.

4. Controllers 1. Verify that automatic controllers are in the automatic (AUTO) setting.

2. Inspect electric connections.

3. Operate manual and automatic starting methods.

4. Resolve all trouble indications.

5. Batteries 1. Verify proper charge. (Replace batteries in accordance with the driver manufacturer’s recommendations or when the full recharged battery voltage or current falls below either the driver or battery’s manufacturer’s recommendations.)

6. Pumps 1. Start and churn to verify operability.

(Where equipment permits, allow water to flow back to the source.) [Operate electric pumps for 10 minutes and operate engine-driven pumps for 30 minutes.]

2. Verify operation of relief valves.

3. Verify fuel level (for engine-driven pumps).

4. Inspect exhaust system for leaks (for engine-driven pumps).

5. For engine driven pumps, start again using second battery set and churn to verify operability. (Where equipment permits, allow water to flow back to the source.)

Annually 1. Control Valves

(sealed, locked, and electrically supervised)

1. Verify proper valve position.

Semi-Annually 1. Fuel (engine-driven pumps)

1. Sample fuel to verify quality.

2 Years 1. Control Valves 1. Operate valve through entire travel to verify function.

2. Lubricate valves to ensure operability.

3. Verify that valve supervisory switches detect a change in valve position.

2. Controllers 1. Calibrate pressure switches.

2. Exercise circuit breakers and switches to verify operability.

3. Inspect fuses.

3. Pumps 1. Check coupling alignment to ensure that the shaft is aligned.

2. Check pump shaft end play.

3. Lubricate bearings.

4. Lubricate couplings.

5. Lubricate right-angle drives.

4. Relief Valves 1. Calibrate valves.

5. Emergency Power

Supply

1. Test to verify availability and capacity for pump motor.

5 Years 1. Pump 1. Conduct flow test to verify pump output.

Test may be through a flow meter returning the water to a storage reservoir or through the test header. Recirculation of water to the suction piping is not permitted. In a multi-pump installation, each pump may be tested separately at not less than 100 percent design capacity for 30 minutes.

2. Verify that the results are within acceptable limits or identify corrective measures.

2. Gauges and Flow Meters

1. Calibrate or replace flow meter prior to fire pump flow test.

2-2.9 Backflow Prevention Devices.

Technical guidance on the tasks is contained in UFC 3-230-02 and AWWA Manual 14 (M14). Backflow prevention and cross-connection devices are normally considered part of the water distribution system; however, their maintenance and full operation is critical to the function of fire suppression systems supplied by the potable distribution system.

UFC 3-230-02 requires each installation to have a backflow prevention and cross-connection maintenance program. All backflow prevention devices are required to have a test connection downstream of the backflow device capable of flowing the fire protection system’s maximum fire flow demand. Reduced pressure backflow prevention devices have a specific approved friction loss operating range; full flow testing is required to demonstrate that the device is operating within the manufacturer’s listed friction loss curves.

Table 2-8 Backflow Prevention Devices ITM Tasks

Frequency Component Tasks Annually 1. All Backflow Prevention

Devices

1. Conduct full flow test to ensure that flow and pressure meet or exceed system demand.

5 years 1. All Backflow Prevention

Devices

1. Conduct internal inspection of backflow prevention assembly to verify all components operate correctly, move freely, and are in good condition.

2-2.10 Standpipe Systems.

Detection devices for actuation, where provided, are addressed in Section 2-2.2, “Fire Detection and Alarm Systems.” Technical guidance on the tasks is contained in NFPA 14, Standard for the Installation of Standpipes and Hose Systems, and NFPA 25.

Table 2-9 Standpipe Systems ITM Tasks

Frequency Component Tasks Monthly 1. Control Valves (without seals, locks, or electric supervision)

1. Verify proper valve position.

Semi- Annually

1. Hose Connection and Pressure Reducing Valves

1. Inspect for damage, leaking, missing caps, and obstructions.

Annually 1. Fire Department Connections

1. Verify accessibility and condition.

2. If caps are removed or missing, check for obstructions.

3. Verify system check valve is not leaking.

4. Verify gaskets are present.

5. Lubricate if swivels do not rotate smoothly.

6. Verify proper operation of ball drip drain prior to the cold season.

2 Years 1. Piping 1. Inspect for damage to piping and pipe supports.

2. Control Valves 1. Operate valve through entire travel to verify function.

2. Lubricate stem.

3. Verify that valve supervisory switches detect a change in valve position.

4. Verify proper valve position

5 Years 1. Standpipe 1. Conduct flow test to verify flow capacity and minimum discharge pressure. (Test must confirm only flow/pressure—not duration—of supply).

2. Hydrostatic test to ensure integrity (dry standpipe systems only).

2. Pressure Reducing Hose Valves

1. Conduct flow test to verify operation of pressure reducing hose valves (test to confirm pressure and flow).

2. Confirm setting of pressure reducing hose valves.

Following System Modification or Repair

1. Main Drain (following maintenance or repair action requiring the water supply to be shut off)

1. Conduct main drain test to verify supply (valve position).

2. Compare results with results from previous main drain tests and original acceptance test.

3. Verify that the results are within acceptable limits or identify corrective measures.

4. Document static and residual pressure readings on a 3-inch by 5-inch tag and secure it to the system pressure gauge.

As Part of Other Building Inspection (not part of the ITM requirements)

1. Entire System 1. Visually check:

a. Pipe hangers.

b. Connections for obstruction.

c. Piping for leaks.

d. Riser condition.

2-2.11 Wet Pipe Automatic Sprinkler Systems

Technical guidance on the tasks is contained in NFPA 25. Residential sprinkler systems are addressed in Chapter 3.

WARNING

Main drain static or residual test pressures that have decreased more than 20 percent from the original acceptance readings or the previous test readings indicate a potential emergency situation. In this case, immediate distribution system flow testing is indicated. Immediately conduct main drain tests on all adjacent sprinkler systems to determine the extent to which the sprinkler systems are compromised. (Table 2-10, Task - Annual 4.3)

CAUTION

Main drain static or residual test pressures that have decreased more than 10 percent from the previous test readings require immediate evaluation to determine the cause. (Table 2-10, Task - Annual 4.3)

Table 2-10 Wet Pipe Sprinkler Systems ITM Tasks

Frequency Component Tasks

Monthly 1. Control Valves (without seal, lock, or electric supervision)

1. Verify proper valve position.

Annually 1. Control Valves (sealed, locked, or electrically supervised)

1. Verify proper valve position.

2. Water Flow Alarm Devices

1. Verify initiation and receipt of alarm (alternate use of alarm test line and inspectors test connection annually).

2. Verify operation of exterior water flow alarm (if present).

3. Verify alarm test valve alignment and tamper switch (if sealed or electrically supervised).

3. Alarm Valve and Trim 1. Visually check the exterior of valves, gauges, trim alignment.

2. Verify valve pressure and legibility of the hydraulic nameplate.

4. Main Drain 1. Conduct a main drain test to verify supply (valve position).

2. Document static and residual pressure readings on a 3-inch by 5-inch tag and secure it to the system pressure gauge.

3. Compare results with results from previous main drain tests and original acceptance test.

4. Verify that the results are within acceptable limits or identify corrective measures.

5. Fire Department Connection

1. Verify accessibility and condition.

2. If caps are removed or missing, check for obstructions.

3. Verify system check valve is not leaking.

4. Verify Gaskets are present.

5. Lubricate if swivels do not rotate smoothly.

6. Verify proper operation of ball drip drain prior to the cold season.

2 Years 1. Control Valves 1. Operate valve through entire travel to verify function.

2. Lubricate valves and stems to ensure operability.

3. Verify that valve supervisory switches detect a change in valve position.

5 Years 1. Alarm Valve 1. Clean and inspect internally to verify condition.

2. Anti-freeze Loops 1. Determine solution type. If solution type is no longer permitted or cannot be positively identified, drain system completely and replace with an acceptable solution.

2. Confirm correct solution mixture.

3. Strainers 1. Inspect internally and clean to good condition.

4. Automatic Air Release Valve

1. Confirm proper operation.

10 Years 1. Gauges 1. Calibrate or replace gauges.

2. Dry Barrel Sprinklers 1. Replace all sprinklers.1

20 Years 1. Fast Response Sprinklers and Extra High Temperature Sprinklers

1. Replace all.1

50 Years, and Every 20 Years Thereafter

1. Standard Sprinklers 1. Replace all sprinklers or test a sample of sprinklers to verify response characteristics.1

Following System Modification or Repair

1. Main Drain (following maintenance or repair action requiring the water supply to be shut off)

1. Conduct main drain test to verify supply (valve position).

2. Compare results with results from previous main drain tests and original acceptance test.

3. Verify that the results are within acceptable limits or identify corrective measures.

4. Document static and residual pressure readings on a 3-inch by 5-inch tag and secure it to the system pressure gauge.

As Part of Other Building Inspection (not part of the ITM requirements)

1. Entire System 1. Visually check:

a. Pipe hangers and seismic bracing.

b. Sprinklers for obstruction.

c. Piping for leaks.

d. Riser condition.

e. Verify sprinkler spares.

Note: A representative sample of sprinklers for testing must consist of one (1) percent of the sprinklers installed of the same type, with a minimum of four (4) sprinklers sampled. Submit sprinklers to a recognized testing laboratory (NRTL) for these tests.

2-2.12 Dry Pipe Automatic Sprinkler Systems.

Technical guidance for these tasks is contained in NFPA 25.

WARNING

Main drain static or residual test pressures that have decreased more than 20 percent from the original acceptance readings or the previous test readings indicate a potential emergency situation. In this case, immediate distribution system flow testing is indicated. Immediately conduct main drain tests on all adjacent sprinkler systems to determine the extent to which the sprinkler systems are compromised. (Table 2-11, Task - Annual 4.3)

CAUTION

Main drain static or residual test pressures that have decreased more than 10 percent from the previous test readings require immediate evaluation to determine the cause. (Table 2-11, Task - Annual 4.3)

Table 2-11 Dry Pipe Automatic Sprinkler Systems ITM Tasks

Frequency Component Tasks Monthly 1. Control Valves (without seal, lock, or electric supervision)

1. Verify proper valve position.

Before the Onset of Freezing Weather

1. Low Point Drains 1. Drain all low points to remove condensation prior to the cold season.

2. Dry Pipe Alarm Valve Enclosure Heating

1. Verify operability at the beginning of the heating season (annually for constant cold areas).

3. Low Temperature Alarm 1. Verify initiation and receipt of alarm at the beginning of the heating season.

Annually 1. Control Valves (sealed, locked, or electrically supervised)

1. Verify proper valve position.

2. Water Flow Alarm Devices 1. Operate alarm test valve to verify initiation and receipt of alarm.

2. Verify alarm test valve alignment and tamper switch (if sealed or electrically supervised).

3. Dry Pipe Alarm Valve and Trim

1. Visually inspect the exterior of valves, gauges, trim alignment.

2. Verify valve pressure and legibility of the hydraulic nameplate.

3. Verify valve position of provided quick opening devices are in the normal position.

4. Main Drain 1. Conduct main drain test to verify supply (valve position).

2. Document static and residual pressure readings on a 3-inch by 5-inch tag and secure it to the system pressure gauge.

3. Compare results with results from previous main drain tests and original acceptance test.

4. Verify that the results are within acceptable limits or identify corrective measures.

5. Fire Department Connection 1. Verify accessibility and condition.

2. If caps are removed or missing, check for obstructions.

3. Verify system check valve is not leaking.

4. Verify gaskets are present.

5. Lubricate if swivels do not rotate smoothly.

6. Verify proper operation of ball drip drain prior to the cold season.

6. Low Point Drains 1. Drain all low points to remove condensation prior to the cold season.

2 Years 1. Control Valves 1. Operate valve through entire travel to verify function.

2. Lubricate valves and stems to ensure operability.

3. Verify that valve supervisory switches detect a change in valve position.

2. Dry Pipe Alarm Valves 1. Trip valve to verify operability.

2. Inspect internal condition before resetting, and clean valve seat.

3. Check priming water level (before and after trip test).

3. Quick-Opening Devices 1. Test to verify operability.

4. Low/High Air Pressure

Alarms

1. Test to verify initiation and receipt of supervisory alarms.

5. Automatic Air Pressure

Maintenance Devices

1. Inspect to verify proper operation.

5 Years 1. Strainers 1. Inspect internally and clean to verify condition.

10 Years 1. Gauges 1. Calibrate or replace gauges.

10 Years 1. Dry Barrel Sprinklers 1. Replace all.1 20 Years 1. Fast Response Sprinklers and Extra High Temperature Sprinklers

1. Replace all sprinklers.1

50 Years, and Every 20 Years Thereafter

1. Standard Sprinkler 1. Replace all sprinklers or test a sample of sprinklers to verify response characteristics.1

Following System Modification or Repair

1. Main Drain (following maintenance or repair action requiring the water supply to be shut off)

1. Conduct main drain test to verify supply (valve position).

2. Compare results with results from previous main drain tests and original acceptance test.

3. Verify that the results are within acceptable limits or identify corrective measures.

4. Document static and residual pressure readings on a 3-inch x 5-inch tag and secure it to the system pressure gauge.

As Part of Other Building Inspection (not part of the ITM requirements)

1. Entire System 1. Visually check:

a. Pipe hangers and seismic bracing.

b. Sprinklers for obstruction.

c. Piping for leaks.

d. Riser condition.

e. Sprinkler spares.

Note: A representative sample of sprinklers for testing must consist of one (1) percent of the sprinklers installed of the same type, with a minimum of four (4) sprinklers sampled. The sprinklers must be submitted to a recognized testing laboratory (NRTL) for these tests.

2-2.13 Deluge Sprinkler Systems.

Detection devices for actuation are addressed in Section 2-2.2, “Fire Detection and Alarm Systems.” Technical guidance on these tasks is contained in NFPA 25 and NFPA 15, Standard for Water Spray Fixed Systems for Fire Protection.

WARNING

Main drain static or residual test pressures that have decreased more than 20 percent from the original acceptance readings or the previous test readings indicate a potential emergency situation. In this case, immediate distribution system flow testing is indicated. Immediately conduct main drain tests on all adjacent sprinkler systems to determine the extent to which the sprinkler systems are compromised. (Table 2-12, Task - Annual 4.3)

CAUTION

Main drain static or residual test pressures that have decreased more than 10 percent from the previous test readings require immediate evaluation to determine the cause. (Table 2-12, Task - Annual 4.3)

Table 2-12 Deluge Sprinkler Systems ITM Tasks

Frequency Component Tasks Monthly 1. Control Valves

(without seal, lock, or electric supervision)

1. Verify proper valve position.

Before the Onset of Freezing Weather

1. Valve and Riser Heated Enclosure (if provided)

1. Verify operability at the beginning of the heating season.

2. Low Temperature Alarm

1. Verify initiation and receipt of alarm at the beginning of the heating season.

3. Low Point Drains 1. Drain all low points after deluge valve test and before cold weather.

Annually 1. Control Valves (sealed, locked, or electrically supervised)

1. Verify proper valve position.

2. Water Flow Alarm Devices

1. Operate alarm test valve to verify initiation and receipt of alarm.

2. Verify alarm test valve alignment and tamper switch (if sealed or electrically supervised).

3. Deluge Alarm Valve and Trim

1. Inspect the exterior of valves, gauges, trim alignment.

2. Verify valve pressure and legibility of the hydraulic nameplate.

4. Main Drain 1. Conduct a main drain test to verify supply (valve position).

2. Document static and residual pressure readings on a 3-inch by 5-inch tag and secure it to the system pressure gauge.

3. Compare results with results from previous main drain tests and original acceptance test.

4. Verify that the results are within acceptable limits or identify corrective measures.

5. Fire Department Connection

1. Verify accessibility and condition.

2. If caps are removed or missing, check for obstructions.

3. Verify system check valve is not leaking.

4. Verify Gaskets are present.

5. Lubricate if swivels do not rotate smoothly.

6. Verify proper operation of ball drip drain prior to the cold season.

2 Years 1. Control Valves 1. Operate valve through entire travel to verify function.

2. Lubricate valves and stems to ensure operability.

3. Verify that valve supervisory switches detect a change in valve position.

2. Deluge Valve 1. Trip to verify operability.

2. Verify that manual actuators are operable.

3. Inspect the internal condition and clean valve seat before resetting.

3. Low Point Drains 1. Drain all low points after each valve trip.

5 Years 1. Strainers 1. Inspect internally and clean to verify condition.

10 Years 1. Gauges 1. Calibrate or replace.

2. Deluge Valve 1. Conduct full flow test.

1. Distribution System 1. Verify nozzle (sprinkler) coverage during flow test.

2. Inspect piping and nozzles for condition and location.

Following System Modification or Repair

1. Main Drain (following maintenance or repair action requiring the water supply to be shut off)

1. Conduct main drain test to verify supply (valve position).

2. Compare results with results from previous main drain tests and original acceptance test.

3. Verify that the results are within acceptable limits or identify corrective measures.

4. Document static and residual pressure readings on a 3-inch by 5-inch tag and secure it to the system pressure gauge.

As Part of Other Building Inspection (not part of the ITM requirements)

1. Entire System 1. Visually check:

a. Pipe hangers and seismic bracing.

b. Sprinklers/nozzles for obstruction.

c. Piping for leaks.

d. Riser condition.

e. Sprinkler spares.

2. Ensure:

a. Manual stations in place and unobstructed.

b. Detectors unblocked/uncovered.

c. Panels secured and indicator lamps functional.

d. Notification appliances in place.

2-2.14 Pre-Action Automatic Sprinkler Systems.

Detection devices for actuation are addressed in Section 2-2.2, “Fire Detection and Alarm Systems.” Technical guidance on these tasks is contained in NFPA 25.

WARNING

Main drain static or residual test pressures that have decreased more than 20 percent from the original acceptance readings or the previous test readings indicate a potential emergency situation. In this case, immediate distribution system flow testing is indicated. Immediately conduct main drain tests on all adjacent sprinkler systems to determine the extent to which the sprinkler systems are compromised. (Table 2-13, Task - Annual 4.3)

CAUTION

Main drain static or residual test pressures that have decreased more than 10 percent from the previous test readings require immediate evaluation to determine the cause. (Table 2-13, Task - Annual 4.3)

Table 2-13 Pre-Action Automatic Sprinkler Systems ITM Tasks

Frequency Component Tasks Monthly 1. Control Valves (without seal, lock, or electric supervision)

1. Verify proper valve position.

Before the Onset of Freezing Weather

1. Valve and Riser Heated Enclosure (if provided)

1. Verify operability at beginning of heating season.

2. Low Temperature Alarm 1. Verify initiation and receipt of alarm at the beginning of the heating season.

3. Low Point Drains 1. Drain all low points before cold weather (if unheated area).

Annually 1. Control Valves (sealed, locked, or electrically supervised)

1. Verify proper valve position.

2. Water Flow Alarm Devices 1. Operate alarm test valve to verify initiation and receipt of alarm.

2. Verify alarm test valve alignment and tamper switch (if sealed or electrically supervised).

3. Pre-Action Valve and Trim 1. Inspect the exterior of valves, gauges, trim alignment.

2. Verify valve pressure and legibility of the hydraulic nameplate.

4. Main Drain 1. Conduct a main drain test to verify supply (valve position).

2. Document static and residual pressure readings on a 3-inch by 5-inch tag and secure it to the system pressure gauge.

3. Compare results with results from previous main drain tests and original acceptance test.

4. Verify that the results are within acceptable limits or identify corrective measures.

5. Fire Department Connection 1. Verify accessibility and condition.

2. If caps are removed or missing, check for obstructions.

3. Verify system check valve is not leaking.

4. Verify gaskets are present.

5. Lubricate if swivels do not rotate smoothly.

6. Verify proper operation of ball drip drain prior to the cold season.

2 Years 1. Control Valves 1. Operate valve through entire travel to verify function.

2. Lubricate valves and stems to ensure operability.

3. Verify that valve supervisory switches detect a change in valve position.

2. Pre-Action Valve 1. Trip to verify proper operation.

2. Verify function of manual actuators

(if provided).

3. Inspect internal condition and clean valve seat before resetting.

3. Low Point Drains 1. Drain all low points after pre-action valve trip test.

4. Air Supply (if present) 1. Test the automatic air pressure maintenance device.

2. Test the low/high air supply alarms.

5 Years 1. Strainers 1. Clean and inspect the interior to verify condition.

10 Years 1. Gauges 1. Calibrate or replace gauges.

10 Years, and Every 10 Years Thereafter

1. Dry Sprinklers 1. Replace all sprinklers or test a sample of sprinklers to verify response characteristics.1

20 Years, and Every 10 Years Thereafter

1. Fast-Response Sprinklers and Extra High Temperature Sprinklers

1. Replace all sprinklers or test a sample of sprinklers to verify response characteristics.1

50 Years, and Every 10 Years Thereafter

1. Standard Sprinklers 1. Replace all sprinklers or test sample closed-head sprinklers to verify response characteristics.1

Following System Modification or Repair

1. Main Drain (following maintenance or repair action requiring the water supply to be shut off)

1. Conduct main drain test to verify supply (valve position).

2. Compare results with results from previous main drain tests and original acceptance test.

3. Verify that the results are within acceptable limits or identify corrective measures.

4. Document static and residual pressure readings on a 3-inch by 5-inch tag and secure it to the system pressure gauge.

As Part of Other Building Inspection (not part of the ITM requirements)

1. Entire System 1. Visually check:

a. Pipe hangers and seismic bracing.

b. Sprinklers for obstruction.

c. Piping for leaks.

d. Riser condition.

e. Sprinkler spares.

2. Ensure:

a. Manual stations in place and unobstructed.

b. Detectors unblocked/uncovered.

c. Panels secured and indicator lamps functional.

d. Notification appliances in place.

Note: A representative sample of sprinklers for testing must consist of one (1) percent of the sprinklers installed of the same type, with a minimum of four (4) sprinklers sampled. The sprinklers must be submitted to a recognized testing laboratory (NRTL) for these tests.

2-2.15 Nitrogen Generation Systems.

Technical guidance for these tasks is contained in NFPA 25 and the manufacturer’s recommendations.

Table 2-14 Nitrogen Generation Systems ITM Tasks

Frequency Component Tasks Monthly 1. Generation System 1. Verify generation system is free of physical damage.

2. Verify proper valve positions.

3. Verify generation system is in normal operating condition.

4. Verify the power wiring to the generation system is free of physical damage.

5. Verify piping from generation system to system served is intact and free of physical damage.

Annually 1. Filter Elements 1. Replace the activated carbon and coalescing filter elements.

2. Intake Filters 1. Clean the air compressor intake filter elements, replace intake filters if necessary.

3. Strainer Screens 1. Clean air tank blow-down strainer screens.

4. System Concentration 1. Verify the generation system is maintaining a nitrogen composition of 98% in the system served. Verify nitrogen composition at remote test locations.

2 Years 1. System Operation 1. Verify generation system operates on the proper pressure drop and ceases operation at the proper set point.

2. Verify generation system does not overheat or present any unusual noise or vibration during operation.

3. Verify the means of anchoring the generation system to the structure is secure, tight, and free of physical damage.

2. Safety Relief Valves 1. Manually test safety relief valves.

5 Years 1. Leakage Test 1. Inspect system served by generation system for leaks by conducting a pressure loss test.

2. System Performance 1. Verify generation system restores normal gas pressure and concentration in the system served within the required timeframe.

Table 2-17 Low-Expansion Foam Systems for Flammable Liquid Tanks ITM Tasks

Frequency Component Tasks Monthly 1. Control Valves (without seals, locks, or electric supervision)

1. Verify proper valve position.

Annually 1. Foam Concentrate 1. Inspect for quality and evidence of sludge or deterioration.

2. Take sample and test in accordance with manufacturer’s instructions.

2. Control Valves (sealed, locked, or electrically supervised)

1. Verify proper valve position.

3. System Actuators 1. Confirm function of all manual and automatic actuation functions.

4. Foam Concentrate Strainers 1. Inspect and clean if necessary.

5. Distribution Piping/Discharge Devices

1. Ensure that discharge devices are free of damage.

2. Inspect pipe and hangers to verify support and pitch.

6. Main Drain 1. Conduct main drain test to verify supply (valve position).

2 Document static and residual pressure readings on a 3-inch by 5-inch tag and secure it to the system pressure gauge.

3. Compare results with results from previous main drain tests and original acceptance test.

4. Verify that the results are within acceptable limits or identify corrective measures.

7. Fire Department Connection 1. Verify accessibility and condition.

2. If caps are removed or missing, check for obstructions.

3. Verify system check valve is not leaking.

4. Verify gaskets are present.

5. Lubricate if swivels do not rotate smoothly.

6. Verify proper operation of ball drip drain prior to the cold season.

2 Years 1. Foam Proportioning System/

Foam Pumps

1. Test to verify operability and proper proportioning. (Concentration to be within 10 percent of original acceptance test results, but no more than 10 percent below minimum design standard).

2. Flush pumps after operation.

2. Control Valves 1. Operate valve through entire travel to verify function.

2. Lubricate valves and stems to ensure operability.

3. Verify that valve supervisory switches detect a change in valve position.

5 Years 1. Distribution Piping (including underground)

1. Spot-check piping interior for evidence of deterioration.

2. Strainers (water supply) 1. Inspect and clean if necessary.

3. Fire Department Connection 1. Hydrostatically test piping from the fire department connection to the fire department check valve at 150 psi (10 bar) for 2 hours.

10 Years 1. Foam Concentrate Tank 1. Drain, flush, and perform internal inspection for corrosion. If pressure vessel, perform hydrostatic test.

Following System Modification or Repair

1. Main Drain (following maintenance or repair action requiring the water supply to be shut off)

1. Conduct main drain test to verify supply (valve position).

2. Compare results with results from previous main drain tests and original acceptance test.

3. Verify that the results are within acceptable limits or identify corrective measures.

4. Document static and residual pressure readings on a 3-inch by 5-inch tag and secure it to the system pressure gauge.

As Part of Other Building Inspection (not part of the ITM requirements)

1. Entire System 1. Visually check:

a. Pipe hangers and seismic bracing.

b. Generators for obstruction (air intake or foam discharge).

c. Generator nozzles for obstruction and generator screens for damage.

d. Piping for leaks.

e. Riser condition.

2. Ensure:

a. Panels secured and indicator lamps functional.

b. Notification appliances in place.

c. Manual stations in place and unobstructed.

Table 2-18 Foam Spray and Sprinkler Systems ITM Tasks

Monthly 1. Control Valves (without seal, lock, or electric supervision)

1. Verify proper valve position.

Semi-Annually 1. Foam Concentrate 1. Inspect for quality and evidence of sludge or deterioration.

2. Verify adequate supply.

2. Foam Proportioning System/

Foam Pumps (if provided)

1. Test pump to ensure operability.

2. Inspect proportioning system for proper valve alignment and system condition.

3. Flush pumps after operation.

Annually 1. Control Valves (sealed, locked, or electrically supervised)

1. Verify proper valve position.

2. Foam Concentrate 1. Take sample and test in accordance with manufacturer’s instructions.

3. Foam Concentrate Strainers 1. Inspect exterior to ensure that blow down valve is closed.

4. Main Drain 1. Conduct main drain test to verify supply (valve position).

2. Document static and residual pressure readings on a 3-inch by 5-inch tag and secure it to the system pressure gauge.

3. Compare results with results from previous main drain tests and original acceptance test.

4. Verify that the results are within acceptable limits or identify corrective measures.

5. Fire Department Connection 1. Verify accessibility and condition.

2. If caps are removed or missing, check for obstructions.

3. Verify system check valve is not leaking.

4. Verify gaskets are present.

5. Lubricate if swivels do not rotate smoothly.

6. Verify proper operation of ball drip drain prior to the cold season.

2 Years 1. Control Valves 1. Operate valve through entire travel to verify function.

2. Lubricate valves and stems to ensure operability.

3. Verify that valve supervisory switches detect a change in valve position.

2. Foam Proportioning System 1. Conduct full flow test to ensure proper system function.

2. Verify proper concentration

(Concentration to be within 10 percent of original acceptance test results, but no more than 10 percent below minimum design standard).

3. Actuators 1. Verify operability of manual and automatic actuators.

4. Distribution System 1. Verify nozzle (sprinkler) coverage during flow test.

2. Inspect piping hangers, sprinklers, and nozzles for condition and location.

5. Foam Concentrate Strainers 1. Inspect and clean after flow test.

5 Years 1. Balancing Valve 1. Flush to prevent concentrate buildup on diaphragm.

2. Strainers (water supply) 1. Inspect and clean if necessary.

10 Years 1. Foam Concentrate Tank 1. Drain, flush, and perform internal inspection for corrosion. If pressure vessel, perform hydrostatic test.

20 Years, and Every 10 Years Thereafter

1. Fast-Response Sprinklers and Extra High Temperature Sprinklers

1. Replace all sprinklers or test a sample of sprinklers to verify response characteristics.1

50 Years, and Every 10 Years Thereafter

1. Standard Sprinklers 1. Replace all sprinklers or test sample closed head sprinklers to verify response characteristics.1

Following System Modification or Repair

1. Main Drain (following maintenance or repair action requiring the water supply to be shut off)

1. Conduct main drain test to verify supply (valve position).

2. Compare results with results from previous main drain tests and original acceptance test.

3. Verify that the results are within acceptable limits or identify corrective measures.

4. Document static and residual pressure readings on a 3-inch by 5-inch tag and secure it to the system pressure gauge.

As Part of Other Building Inspection (not part of the ITM requirements)

1. Entire System 1. Visually check:

a. Pipe hangers.

b. Sprinklers/nozzles for obstruction.

c. Piping for leaks.

d. Riser condition.

e. Sprinkler spares.

2. Ensure:

a. Detectors unblocked/uncovered.

b. Panels secured and indicator lamps functional.

c. Notification appliances in place.

d. Manual stations in place and unobstructed.

Note: A representative sample of sprinklers for testing must consist of one (1) percent of the sprinklers installed of the same type, with a minimum of four (4) sprinklers sampled. The sprinklers must be submitted to a recognized testing laboratory (NRTL) for these tests.

Table 2-19 Foam Monitor Nozzle Systems ITM Tasks

Frequency Component Tasks Monthly 1. Control Valves (without seals, locks, or electric supervision)

1. Verify proper valve position.

Annually 1. Control Valves (sealed, locked, or electrically supervised)

1. Verify proper valve position.

2. Foam Concentrate 1. Inspect for quality and evidence of sludge or deterioration.

2. Inspect to verify adequate supply.

3. Take sample and test in accordance with manufacturer’s instructions.

3. Foam Concentrate Strainers 1. Inspect exterior to ensure that blow down valve is closed.

4. Nozzle and Nozzle Driver 1. Lubricate in accordance with manufacturer’s directions.

2. Ensure that nozzle elevation is set to not apply foam on aircraft surfaces.

3. Manually operate oscillation with garden hose to ensure proper movement and pattern.

5. Main Drain 1. Conduct main drain test to verify supply (valve position).

2. Document static and residual pressure readings on a 3-inch by 5-inch tag and secure it to the system pressure gauge.

3. Compare results with results from previous main drain tests and original acceptance test.

4. Verify that the results are within acceptable limits or identify corrective measures.

2 Years 1. Control Valves 1. Operate valve through entire travel to verify function.

2. Lubricate valves and stems to ensure operability.

3. Verify the valve supervisory switches detect a change in valve position.

2. Foam Proportioning

System/Foam Pumps (if provided)

1. Conduct full flow test to ensure proper system function. (This may be done through a test connection or through the foam nozzles. Only discharge until full foam flow appears from each nozzle; then end foam injection.)

2. Verify proper concentration.

(Concentration to be within 10 percent of original acceptance test results, but no more than 10 percent below minimum design standard).

3. Flush pumps after operation.

3. Actuators 1. Verify operability of manual and automatic actuators.

4. Distribution System 1. Verify nozzle coverage during flow test (water only).

2. Inspect piping hangers and nozzles for condition and location.

5. Foam Concentrate Strainers 1. Inspect and clean after flow test.

5 Years 1. Balancing Valve 1. Flush to prevent concentrate buildup on diaphragm.

2. Strainers (water supply) 1. Inspect and clean if necessary.

10 Years 1. Foam Concentrate Tank 1. Drain, flush, and perform internal inspection for corrosion. If pressure vessel, perform hydrostatic test.

Following System Modification or Repair

1. Main Drain (following maintenance or repair action requiring the water supply to be shut off)

1. Conduct main drain test to verify supply (valve position).

2. Compare results with results from previous main drain tests and original acceptance test.

3. Verify that the results are within acceptable limits or identify corrective measures.

4. Document static and residual pressure readings on a 3-inch by 5-inch tag and secure it to the system pressure gauge.

As Part of Other Building Inspection (not part of the ITM requirements)

1. Entire System 1. Visually check:

a. Pipe hangers and seismic bracing.

b. Nozzle for obstruction.

c. Piping for leaks.

d. Riser condition.

2. Ensure:

a. Detectors unblocked/uncovered.

b. Panels secured and indicator lamps functional.

c. Notification appliances in place.

d. Manual stations in place and

Table 2-20 Grate Nozzle Foam Systems ITM Tasks

Monthly 1. Control Valves (without seals, locks, or electric supervision)

1. Verify proper valve position.

Annually 1. Foam Concentrate 1. Inspect for quality and evidence of sludge or deterioration.

2. Inspect to verify adequate supply.

3. Take sample and test in accordance with manufacturer’s instructions.

2. Foam Nozzles 1. Inspect to verify condition.

3. Control Valves (sealed, locked, or electrically supervised)

1. Verify proper valve position.

2 Years 1. Foam Nozzles 1. Conduct test to verify operability. (Test may be done with water only.)

2. Actuators 1. Verify that all manual and automatic actuators function.

3. Foam Proportioning

System/Foam Pumps (if provided)

1. Conduct full flow test to ensure proper system function. (This may be done through a test connection or through the foam nozzles. Only discharge until full foam flow appears from each nozzle; then end foam injection.)

2. Verify proper concentration.

(Concentration to be within 10 percent of original acceptance test results, but no more than 10 percent below minimum design standard).

3. Flush pumps after operation.

4. Control Valves 1. Operate valve through entire travel to verify function.

2. Lubricate valves and stems to ensure operability.

3. Verify that valve supervisory switches detect a change in valve position.

10 Years 1. Foam Concentrate Tanks 1. Drain, flush, and perform internal inspection for corrosion. If pressure vessel, perform hydrostatic test.

After Activation 1. Strainers 1. Inspect and clean after system actuation or flow test.

2. Manual Pull Stations 1. Visually inspect NEMA 4 pull stations to confirm that seals prevented foam from entering device.

2. Internally inspect all non-NEMA 4 pull stations for damage.

3. Flushing 1. Flush system upon the completion of any testing where foam concentrate has been introduced to the system.

Following System Modification or Repair

1. Main Drain (following maintenance or repair action requiring the water supply to be shut off)

1. Conduct main drain test to verify supply (valve position).

2. Compare results with results from previous main drain tests and original acceptance test.

3. Verify that the results are within acceptable limits or identify corrective measures.

4. Document static and residual pressure readings on a 3-inch by 5-inch tag and secure it to the system pressure gauge.

As Part of Other Building Inspection (not part of the ITM requirements)

1. Entire System 1. Visually Check:

a. Pipe hangers, seismic bracing, and mounts.

b. Nozzles for obstruction.

c. Piping for leaks.

d. Riser condition.

2. Ensure:

a. Detectors unblocked/uncovered.

b. Panels secured and indicator lamps functional.

c. Notification appliances in place.

d. Manual stations in place and

Table 2-21 High-Expansion Foam Systems ITM Tasks

Monthly 1. Control Valves (without seals, locks, or electric supervision)

1. Verify proper valve position.

Annually 1. Foam Concentrate 1. Inspect for quality and evidence of sludge or deterioration.

2. Inspect to verify adequate supply.

3. Take sample and test in accordance with manufacturer’s instructions.

2. Foam Generator 1. Inspect to verify condition from ground level and proper valve alignment.

3. Main Drain 1. Conduct main drain test to verify supply

(valve position).

2. Document static and residual pressure readings on a 3-inch by 5-inch tag and secure it to the system pressure gauge.

3. Compare results with results from previous main drain tests and original acceptance test.

4. Verify that the results are within acceptable limits or identify corrective measures.

4. Control Valves (sealed, locked, or electrically supervised)

1. Verify proper valve position.

2 Years 1. Foam Generator 1. Conduct test to verify operability.

(Water-powered may be done with water only.)

2. Actuators 1. Verify that all manual and automatic actuators function.

3. Foam Proportioning

Systems/Foam Pumps (if provided)

1. Conduct full flow test to ensure proper system function. (Test may be done through a test connection or through the foam generators. Only discharge until full foam flow appears from each generator; then end foam injection.)

2. Verify proper concentration.

(Concentration to be within 10 percent of original acceptance test results, but no more than 10 percent below minimum design standard.)

3. Flush pumps after operation.

4. Control Valves 1. Operate valve through entire travel to verify function.

2. Lubricate valves and stems to ensure operability.

3. Verify that valve supervisory switches detect a change in valve position.

After Water-only Test and Foam Flow Test

1. Strainers 1. Inspect and clean after flow test.

After System Activation

1. Strainers 1. Inspect and clean after system activation.

2. Manual Pull Stations 1. Visually inspect NEMA 4 pull stations to confirm that seals prevented foam from entering device.

2. Internally inspect all non-NEMA 4 pull stations for damage.

3. Control Panels 1. Internally inspect all system control units that were exposed to foam.

4. Flushing 1. Flush system upon the completion of any testing where foam concentrate has been introduced to the system.

10 Years 1. Foam Concentrate Tank 1. Drain, flush, and perform internal inspection. If pressure vessel, perform hydrostatic test.

Following System Modification or Repair

1. Main Drain (following maintenance or repair action requiring the water supply to be shut off)

1. Conduct main drain test to verify supply (valve position).

2. Compare results with results from previous main drain tests and original acceptance test.

3. Verify that the results are within acceptable limits or identify corrective measures.

4. Document static and residual pressure readings on a 3-inch by 5-inch tag and secure it to the system pressure gauge.

As Part of Other Building Inspection (not part of the ITM requirements)

1. Entire System 1. Visually check:

a. Pipe hangers and seismic bracing.

b. Generators for obstruction (air intake or foam discharge).

c. Generator nozzles for obstruction and generator screens for damage.

d. Piping for leaks.

e. Riser condition.

2. Ensure:

a. Detectors unblocked/uncovered.

b. Panels secured and indicator lamps functional.

c. Notification appliances in place.

d. Manual stations in place and unobstructed.

2-2.19 Dry Chemical Systems

Automatic initiating devices (for example, heat detectors, smoke detectors) used for system actuation are addressed in Section 2-2.2, “Fire Detection and Alarm Systems.”

Technical guidance on these tasks is contained in NFPA 17, Standard for Dry Chemical Extinguishing Systems.

Note: There is no requirement to replace existing dry chemical systems protecting cooking surfaces, hoods, and ducts. These existing systems that pass the required ITM may continue in service, and these systems may be serviced and repaired as necessary. Existing systems protecting cooking surfaces, hoods, and ducts may not be removed and reinstalled at another location even if the systems met all ITM requirements. All new or replacement systems to protect cooking surfaces, hoods, and ducts must be wet chemical-type systems.