2 Acceptance Testing of Fire Protection Systems 101 Touch on all types of Fire Sprinkler of systemsFire Pumps and StandpipesRequirements for Acceptance Testing per NFPA and the State Fire MarshalIndustry Jargon and Common terminologyState Rules- Texas Insurance Code Chapter 6003 & 28 TAC SSInformation in these slides comes from NFPA Standards 13, 14 and 20
3 Defining Terms “Authority Having Jurisdiction” Listed and Approved “Shall” vs. “Should”Hydrostatic Testing And CoverAdd and Relocates (Remodels) vs. New System installsMain Drain Test
4 Control Valve TestingTagging RequirementsSystem Type- Wet, Dry, Preaction and Deluge with specific differences and required tests for eachSpecific Application System- ESFR, Control Mode, Residential, Double Interlock, etc
5 Authority Having Jurisdiction (AHJ) 3.2.2* “An organization, office or individual responsible for enforcing the requirements of a code or standard, or for approving equipment, materials, an installation, or a procedure”
6 Examples: Fire Chief, Fire Marshal Labor Department Health Department- TDADSBuilding Official, Electrical Inspector, Plumbing InspectorInsurance Organizations and their RepresentativesCommanding Officer on Base
7 Anyone with a vested interest in the system performing as intended …essentially…Anyone with a vested interest in the system performing as intended
8 Listed3.2.2* “Equipment, materials, or services included in a list published by an organization that is acceptable to the authority having jurisdiction”….
9 Approved Approved Materials 3.2.1 “Acceptable to the authority having jurisdiction”Approved MaterialsAll materials and methods for installation are to conform to Chapter 6 of NFPA or the individual product listings and approvals. When in doubt……..
10 …Make the installing contractor prove it to your satisfaction!!!! If it looks incorrect, it probably isBe wary of new products, have contractor provide cut sheets when in doubtGood review with thorough walk through at hydro at end of job
11 Your interpretation of the codes and standards is to be met or proven incorrect- codes/ standards are in writing- not inferredSometimes corners are cut by unscrupulous contractorsSome poor installs are mistakes or “human error” - BUT….
12 Report repeat offenders to the State Fire Marshal’s office!!! _________________________________________________________________________________________________________________________
13 REMEMBER…You are the last line of defense to ensure the end user gets what they expect and paid for!!! These are your customers, you are their expert!Poor installs fail annual inspections and cost the owner money later for repairs
14 Shall Should 3.2.4 “Indicates a mandatory requirement.” 3.2.5 “Indicates a recommendation or that which advised but not required.”
15 System AcceptanceAcceptance Testing of systems is contained in Chapter 24 of NFPA EditionAll required tests are listed, but required extra heads and some paperwork is not.
16 Hydrostatic TestSection “All piping and attached appurtenances subjected to system working pressure shall be hydrostatically tested at 200 psi (13.8 bar) and shall maintain that pressure without loss for two hours”
17 Section Portions of systems normally subjected to working pressures in excess of 150 psi (10.4 bar) shall be tested as described in at a pressure of 50 psi (3.5 bar) in excess of working pressure
18 Things to watch at Hydro Need to know expected pump churn pressure and expected system working pressure, are PRV’s required?Hydrostatic test pressure is taken at the bottom of the system, not the top (Section )
19 Know the limits of the materials- pressure limitations of fittings and sprinkler heads If there is freeze potential, an interim pneumatic air test at 40 psi can be conducted for 24 hours per This does not remove or replace the requirement for a hydrostatic test.
20 This test is referred to as a “Hydro Test” or “Cover Inspection” All systems require this type of test- Sprinkler, Standpipe, PumpIn new construction the pipe should not be covered up during the testA procedure for removing “test blanks” must be in place
21 Retrofits are typically covered up Retrofits are typically covered up. These are existing buildings and not all areas are accessible. Use your own judgment.Walk systems during the two hour test, look for leaks. Small leaks are not cause for concern.Excessive water leakage and pressure drop are cause for failure and re-test of system
22 Hydro Test ProcedureContractor should have system pumped up above 200 psi or 50 above working pressure, prior to your arrival to remove air pocketsNote Pressure on gauge upon arrival.Walk system- look for leaks.
23 While walking system, note areas that are in need of repair or changes required in the system to installing contractor.At end of two hour period, note pressure (loss if any). Have Contractor drain system to zero the gauge out in your presence.
24 Things to Keep in MindFDC piping is often overlooked- Needs to be 150psi after repair/ replacement- SecTemperature changes affect system pressure during hydro.Trapped air in the system takes time to escape, if the system has not been pumped up for some time then air will escape.
25 Add and Relocates“Modifications affecting 20 or fewer sprinklers shall not require testing in excess of system working pressure”
26 Per Section Modifications above 20 sprinklers, isolate the affected portion of the system and hydroPer Section Modifications that cannot be isolated (i.e.. Relocated drops) shall not require tested in excess of system working pressure
27 Main Drain Test“The main drain valve shall be opened and remain open until system pressure stabilizes”“The static and residual pressures shall be recorded on the contractor’s material and test certificate”Use the bottom gauge
28 Often overlookedRequired on State “white tags”Provides baseline water supply test information to measure water supply deterioration in subsequent NFPA 25 Inspections.This is required on all systems! The importance cannot be stressed enough!
29 Size of main drainsTable Drain Size_________ Riser or Main Size Size of Drain Connection Up to 2 in. 3⁄4 in. or larger 21⁄2 in., 3 in., 31⁄2 in. 11⁄4 in. or larger 4 in. and larger 2 in. only No test orifices on main drains!!!! Need fully open for Main Drain Test. Listed Test and drain assemblies are acceptable if capable of full flow.
30 Operational Tests Referred to as a “Final” While performing this test, an inspection should be performed. Things to look for:Loaded or painted sprinkler headsAdequate coverage of all spacesMissing pieces or incorrect installTamper and flow switch operationFire Alarm System should be on “Test”
31 Walk the space- Check head coverage Light Hazard225 Sq FtMax. 15’ X 15’Ordinary Hazard130 Sq FtMax. 15 ft X 8’-8”
32 Storage, ESFR, Control Mode Extra Hazard100 Sq FtMax. 10’ X 10’ or 12 X 8’-4”Storage, ESFR, Control ModeLook up each individual section- these change oftenRequest the sprinkler cut sheet from the Contractor- these are specific application and may have some special requirements
33 Obstructions Depending on the type of head and the obstruction Refer to Chapter 8 in NFPA 13- ’07.All types of heads are broken down individually
36 Testing Alarm Switches Inspector’s test connection should have at least 1 inch pipe connected to a corrosion resistant orifice equal to the size of the smallest orifice on the system.Open ITC all the way, alarm should sound in less than 5 minutes
37 If bell goes off too quick, have contractor adjust delay on alarm device to account for water hammer in city water to avoid nuisance alarms.Ensure cover is on WF switch after test is performedCall the monitoring company- verify signals are correct for the space/ bldg
39 Testing Tamper Switches “Valves on connections to water supplies, sectional control valves, and other valves in supply pipes to sprinklers and other fixed water based fire suppression systems shall be supervised by one of the following:”
40 Central station, proprietary, or remote station signaling at a constantly attended point Local signaling service that will cause the sounding of an audible signal at a constantly attended pointValves locked in the correct positionValves in fenced enclosures under the owner’s control
41 Testing Tampers“All control valves shall be fully closed and opened under system water pressure to ensure proper operation”Check the valve operationCheck Tamper operation and signal to monitoring company
43 Common Misinterpretation PRV’s should be a Pressure Reducing Valve- NOT Restricting or Relief ValveTrue PRV’s Reduce pressure under both Flow and Static ConditionsNFPA 14-’07 SecNFPA 13-’07 Sec
44 Where RequiredSprinkler-When working pressure exceeds 175 psi unless all downstream components are rated for the higher pressureStandpipe-For Fire Hose Valves where pressure exceeds 175 psi on 2-1/2” FHV’s pressure shall be limited to 100 psi- 1-1/2” valves can be of regulating type
46 PRV Requirements- Fire Sprinkler Pressure gauges shall be on the inlet and outlet sides of each pressure reducing valveA relief valve of not less than ½” shall be provided on the discharge side set to operate at a pressure not exceeding 175 psi.
47 A listed indicating valve shall be provided on the inlet side of each PRV, unless the PRV meets the listing requirements for use as an indicating valve.Means shall be provided downstream of all PRV’s for flow tests at sprinkler demand
48 Acceptance Testing PRV’s Each pressure-reducing valve shall be tested upon completion of installation to insure proper operation under flow and no-flow conditions.Testing shall verify device regulates outlet at maximum and normal conditions
49 The results of the flow test of each PRV shall be recorded on the contractor’s material and test certificateThe results shall include the static and residual inlet pressures, static and residual outlet pressures and the flow rate
50 Standpipe Hose Valve PRV’s- NFPA 14-’07 11.5.4 Ask for PRV Testing Logs to show work was completedNFPA requires 1-1/2” hose valves residual pressure limited to 100 psi and 2-1/2” hose valves static and residual pressure limited to 100 psi where pressure exceeds 175 psi
51 Backflow Prevention Assemblies-184.108.40.206 A Where backflow prevention devices are installed, they should be in an accessible location to provide service and maintenance
52 Means shall be provided downstream of all backflow prevention valves for flow tests at system demandsA describes the describes the methods available- essentially ensuring the backflow will not restrict the system demand
53 Backflow Prevention Assemblies Where are they Required???Section references AWWA M14, Recommended Practice for Backflow Prevention and Cross Connection Control and the public Health AHJ requirements
54 Backflow Prevention Acceptance Testing-24.2.5 The backflow prevention assembly shall be forward flow tested to ensure proper operation.The minimum flow rate shall be the system demand, including hose stream …
55 A copy of the state or local test report performed by a TCEQ approved tester should be attached to the riserAn approved inspection by the local Health AHJ should be provided prior to final.
56 Circulating Closed Loop Systems These are covered in 24.3.Requires certification of pressure ratings for auxiliary devices and proof of pressure test in all modes of operationDischarge tests to be per the five minute requirement
57 Wet Pipe System For Heated Buildings Commercial Industrial Residential HospitalsEducationalRetailMost Common Sprinkler SystemEasiest to Maintain and OperateRequires the Least Amount of Testing_________________________________________________________________________________________________________________________
59 Wet System Tests and Requirements Hydrostatic and CoverWalkthrough and FinalOperational (Alarms, Tamper, Main Drain Test)Confirm Code complianceEnsure correct number of spare heads are left on site per NFPA Section Dry heads not required. Sprinkler Wrench is.
60 Wet System Riser Reqt’s New systems to have White Tag and Blue ITM TagAll additions over 20 heads are to have a new white tag addedHydraulic Placard and General Information SignPRV test tags on each PRVBackflow certification and Inspection by Plumbing Dept
61 Dry Pipe System For Non-Heated Buildings Commercial Industrial Parking GaragesBuilding Exteriors_________________________________________________________________________________________________________________________
63 Dry System Tests and Requirements -24.2.2 Hydrostatic and CoverWalkthrough and FinalOperational (Alarms, Tamper, Main Drain Test)Confirm Code complianceEnsure correct number of spare heads are left on site per NFPA Section Dry heads not required. Sprinkler Wrench is.
64 Dry Systems Also Require In addition to 200 psi hydrostatic test- an air leakage test is required40 psi of air for 24 hours- any leakage in excess of 1-1/2 psi shall be corrected
65 System Operational Test covers operational testTrip test of valve and any quick opening devices- time how long it takes for water to be discharged from the inspector’s test connection.Verify it is per and record it on the Contractor’s Material and Test Certificate
66 Water Delivery per NFPA 13- 2007 Table Dry System Water DeliveryHazardNumber of Most Remote Sprinklers Initially OpenMaximum Time of Water DeliveryResidential115 secondsLight60 secondsOrdinary I250 secondsOrdinary IIExtra I445 secondsExtra IIHigh piled40 seconds
67 Air Compressor Testing The air supply shall have a capacity capable of restoring normal air pressure in the system within 30 minutesA When a single compressor serves multiple systems, the 30 minute fill time is based in the largest system
68 Dry System Riser Reqt’s New systems to have White Tag and Blue ITM TagAll additions over 20 heads are to have a new white tag addedHydraulic Placard and General Information SignPRV test tags on each PRVBackflow certification and Inspection by Plumbing Dept
69 Pre Action System For Environmentally Sensitive Areas Computer Rooms Surgical SuitesTele-Data Switch RoomsFine Art Storage Rooms_________________________________________________________________________________________________________________________
70 Pre Action System_________________________________________________________________________________________________________________________
71 Preaction Requirements -220.127.116.11 Hydrostatic and CoverWalkthrough and FinalOperational (Alarms, Tamper, Main Drain Test)Confirm Code complianceEnsure correct number of spare heads are left on site per NFPA Section Dry heads not required. Sprinkler Wrench is.
72 Preaction Systems Also Require Test the preaction valve operation in accordance with the manufacturer’s instructions- ask for literature if there is any questions on operationTest manual and remote control activation- this can be electric, pneumatic or a combination
73 Also needs to maintain a minimum supervisory pressure of 7 psi. Is the piping supervised? Sec requires supervision to ensure system integrity.If supervisory air or nitrogen is used- it needs to conform to for dry systems…30 minute refill requirement.Also needs to maintain a minimum supervisory pressure of 7 psi.
74 Preaction Riser Reqt’s New systems to have White Tag and Blue ITM TagAll additions over 20 heads are to have a new white tag addedHydraulic Placard and General Information SignPRV test tags on each PRVBackflow certification and Inspection by Plumbing Dept
75 Deluge System For Highly Flammable Areas Aircraft Hangers Solvent ProcessingDynamite Plants_________________________________________________________________________________________________________________________
77 Deluge System Requirements -18.104.22.168 Hydrostatic and CoverWalkthrough and FinalOperational (Alarms, Tamper, Main Drain Test)Confirm Code complianceEnsure correct number of spare heads are left on site per NFPA Section Dry heads not required. Sprinkler Wrench is.
78 Deluge Systems Also Require Test the deluge valve operation in accordance with the manufacturer’s instructions- ask for literature if there is any questions on operationTest manual and remote control activation- this can be electric, pneumatic or hydraulic
79 Flow Testing of the system to ensure hydraulic performance Flow Testing of the system to ensure hydraulic performance. Calibrated gauges are to be used at different points on the systemThese gauge readings are to be compared to the hydraulic calculationsDetection devices are to be automatically supervised
80 Deluge Riser Reqt’s New systems to have White Tag and Blue ITM Tag All additions over 20 heads are to have a new white tag addedHydraulic Placard and General Information SignPRV test tags on each prvBackflow certification and Inspection by Plumbing Dept
81 Standpipe System For Multi-level Buildings Per AHJ _________________________________________________________________________________________________________________________
82 Stand Pipe System_________________________________________________________________________________________________________________________
83 Standpipe System Tests and Requirements Hydrostatic and CoverWalkthrough and FinalOperational (Alarms, Tamper, Main Drain Test)Confirm Code compliance and hose thread compatibilityFlow test through roof manifold testing approved water source- fire pump, FD pumper truck, etc.
84 PRV tests. Ask for test log Main Drain flow tests- record on material test certificateDry and semi automatic shall be trip tested to deliver 250 GPM at the hydraulically most remote hose connection within 3 minutesAir testing applies per dry systems in NFPA 13
85 Open and close each valve manually- make sure hose caps are on prior to testing Check for proper signage
86 Fire Pump_________________________________________________________________________________________________________________________
90 All factory supplier representatives are to be in attendance during field acceptance tests- AHJ should be notifiedAs a minimum, proof of the initial startup and field acceptance test report should be provided at Fire Marshal final
91 A copy of the certified pump test characteristic curve shall be available for comparison of the field acceptance test.Compare the curves to ensure the pump meets it’s factory specs.
92 Pump shall be run at minimum, rated and peak loads How is this determined??Minimum is 0 GPM or churnRated is the rating of the pumpi.e GPM pump needs to be tested at 1000 GPMMaximum is 150 % of pump rating- a 1000 GPM rated pump is capable of 1500 GPM flow
93 Per NFPA , Section Pumps shall furnish not less than 150 percent of rated capacity at not less than 65 percent of total rated head.The shutoff head shall not exceed 140 percent of rated head for any type of pump.
94 Example 1- Pump is rated for 750 GPM @ 100 psi 150 percent of load-1.5 X 750 =112565 percent of total rated head-.65 X 100= 65 psiPump should provide 65 psi MINIMUM at 1125 GPM
95 Example 2- Maximum Shutoff 100 psi Fire pumpMaximum Shutoff Head-1.4 X 100 psi= 140 psiPump shutoff pressure should not be over 140 psi.
96 Keep in mind that is the Fire Pump shutoff pressure- the jockey of maintenance pump will add 10 more psi to the working pressure of the system
104 To be affixed to riser after new install or scheduled testing and maintenance. To remain on riser for the life of the system- provides baseline water flow information for subsequent inspections.Work for this tag to be filled out by licensed RME-G or RME-I.
106 To be affixed to riser after new install or scheduled testing and maintenance. To remain on riser for minimum of five years- only to be removed by employee of authorized firmWork for this tag to be filled out by licensed RME-G or RME-I.
108 To be affixed to riser after every service performed To remain on riser for minimum of five years- only to be removed by employee of authorized firmWork for this tag to be filled out by Installer- license not neededIf anything is found to be impaired, a yellow or red tag need to be affixed as well.
109 Contractor’s Material and Test Certificates Ensure these are filled out in their entirety and affixed to the riser in a protective sheath. The owner will want these at a later date.
117 Post Construction Inspections and Maintenance Required per NFPA 25 and all Local JurisdictionsTexas requires Licensed InspectorsIdentify changes inOccupancy and useCeiling and finishes (i.e.. Painted and loaded heads)Added building features(Decks, Canopies, Clouds)Ensure system operationFind system deficiencies and repair them in a timelymanner_________________________________________________________________________________________________________________________