DESIGN, INSTALLATION, OPERATION AND MAINTENANCE MANUAL
LIST OF RELEVANT TECHNICAL DATA SHEETS Code Keys
Unit Code Keys
Electric Pump Units Component Code Keys
Sprinklers and spray heads (HI-FOG 2000)
Assembly bodies
Section and Machinery space valves
Technical Data Sheets and other technical documentation Pump Units
TE1002 SPU gearbox chain and coupling change TE2000 Sprinkler Pump Unit SPU 2
P31000FM SPU Operating and Maintenance Manual Valves
TD1040 Section Valve NS40
TD1240 Section Valve NS40 Micro Switch TD1820 Section Valve NS20
TD3020 Machinery Space Valve NS 20 TD3021 Machinery Space Valve NS 20
TD5020 Machinery Valve NS 20 Quick Release (Latching) Sprinklers
TC2010 Sprinkler HI-FOG 2000 Type C10-57C/0 & C10-57C TC2022 Sprinkler HI-FOG 2000 Type C12-xxxC/0
TC2030 Sprinkler HI-FOG 2000 Type C20-xxC/0 & C20-57C TC2060 Sprinkler HI-FOG 2000 Type S10-57C/0 & S10-57C TC2080 Sprinkler HI-FOG 2000 Type S20-57C/0 & S20-57C Assembly Bodies
TC8410 Assembly Body Set A2000 B1A T1 V D12S10 TC8420 Assembly Body Set A2000 B2A T1 2 D12S10 TC8430 Assembly Body Set A2000 711A S1V W1210 TC8440 Assembly Body Set A2000 711B43 T 10 W1210 TC8450 Assembly Body Set A2000 B 3B S0 0 D12S 10 Piping Parts & Fittings
TA0001 – 9999 TB0001 – 9999
Document Ref: MO/ES/13/DIOM/FM/03 Revision: 1.1 Date of Issue: April '05
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-1.0 INTRODUCTION 1.1 About this Manual
1.1.01 This manual is to be used by trained and certified employees of Marioff ‘Authorized Distributors’.
1.1.02 The function of the manual is to provide Design, Installation, Operation and Maintenance information for use by suitably qualified personnel with experience of fixed fire protection system engineering.
1.1.03 Users of this manual should ensure themselves of familiarity with the requirements of the most current edition of NFPA 750 (Installation of Water Mist Fire Protection Systems) and with any other relevant national codes applicable to the installation territory.
1.1.04 This manual provides HI-FOG system specific design and installation parameters defined in representative full-scale fire tests.
1.1.05 This is a single volume technical manual arranged in 12 Sections and an Appendix containing clarifying information about the system installation.
1.1.06 This manual as such does not contain technical details but reference is given to relevant Marioff Technical Data Sheets as well as other relevant Marioff documentation The most current revisions of the Data Sheets and other documentation shall be applied.
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-1.2 About the HI-FOG Systems
1.2.01 The scope of this manual covers HI-FOG systems for the protection of light hazard occupancies as defined in FM Global Property Loss Prevention Data Sheets 4-2 and 5-32 and the most current edition of NFPA 13 (Standard for the Installation of Sprinkler Systems).
This manual covers non-storage and non-manufacturing occupancies such as
− residential occupancies
− offices
− meeting rooms
− hotels
− museums (exhibit areas)
− restaurant seating areas
− institutions
− schools
− data processing centers (except for centers with open storage of media in racks)
− hospitals
− churches
− and other similar spaces with respect to fire hazard, as determined by FM Global.
1.2.02 The systems reflect the extensive research, development, testing and independent appraisal carried by Marioff, including the Fire Performance Test Programs of Factory Mutual Research Corporation (FM) completed in March 2000, and of the International Maritime Organization (IMO) completed in February 2003.
1.2.03 The system installation and dimensioning parameters are based on the full scale fire tests described in the following reports
Test Report No. RTE3035/00 Fire performance testing of the Hi-fog 2000 fire protection system for the protection of light hazard occupancies, VTT Building Technology,
November 2000
Test Report No. RTE986/00 Evaluating the suppression efficiency of the Hi-fog fire protection system in accommodation areas on passenger ships according to IMO Res.A.800(19), VTT Building Technology, June 2000
Test Report No. RTE404/03 Evaluating the extinguishing effectiveness of the HI-FOG 2000 fire protection system in a cabin according to IMO Res.A.800(19), VTT Building and Transport, February 2003
[NOTE: not taken into account in the FM Light Hazard Approval]
1.2.04 The components of the system have been tested by FM according to the FM requirements.
1.2.05 Although all sprinkler types included in this manual fulfill the FM component requirements, not all of their applications fall within the FM Light Hazard Approval. These applications are clearly marked in the manual.
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-1.2.06 Users of this manual should ensure that the application addressed falls within the scope of this manual and, if any doubt should exist, it is the Distributors’ responsibility to verify the application with Marioff's Technology Department and FM before proceeding.
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-1.3 Terms and Conditions
1.3.01 Only Marioff Corporation Oy or Marioff Authorized Installers are allowed to plan, install and maintain HI-FOG systems described in this manual.
1.3.02 Marioff cannot be held responsible for any engineered system of the type that has not been designed, installed, operated or maintained in accordance with the instructions and guidelines provided in this manual.
1.3.03 Marioff Corporation Oy reserves the right to revise and improve its products and recommended system configurations as it deems necessary without notification to the end user. FM must be informed about any such modifications.
The information contained herein is intended to describe the state of Marioff products and system configurations at the time of its publication and may not reflect the product and/or system configurations at all times in the future.
1.3.04 All the information contained herein is confidential and proprietary to Marioff Corporation Oy and it shall not, in whole or in part, be reproduced, copied, disclosed or used as the basis for manufacture or sale without a prior written consent of Marioff Corporation Oy. HI-FOG is a registered trademark of Marioff Corporation Oy. Copyright 1997. Marioff Corporation Oy.
1.3.05 Any questions concerning information presented in this manual should be addressed to:
Marioff Corporation Oy
Street address: Virnatie 3 Mailing address: P.O. Box 86
FIN-01301 Vantaa
Finland
Telephone: +358-9-8708 51 Facsimile: +358-9-8708 5399 E-mail [email protected]
Document Ref: MO/ES/13/DIOM/FM/03 Revision: 1.1 Date of Issue: April '05
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-2.0 GENERAL SYSTEM DESCRIPTION
2.0.01 The HI-FOG water mist distribution systems described in this manual are of single fluid type and employ plain water under high pressure as the suppression agent.
2.0.02 Each system arrangement is configured using a water supply to provide the total suppressant requirement typically for at least 30 min for nine sprinklers. For FM Approved systems the water supply shall be capable of supplying 60 minutes of water to the most remote nine sprinklers or 140 m2 area, whichever is greater, at the minimum rated operating pressure of 80 bar.
2.0.03 The systems are arranged for a continuous discharge application for suppressing and controlling the fire for the required period of time.
2.1 Components
2.1.01 The system consists of the following main components:
- an electric pump unit for delivering plain water to the water distribution network (Section 3) - sprinklers for discharging of water mist (Section 4)
- stainless steel piping (Section 5) - section valves (Section 6)
- an electrical control, monitoring, and signaling system (Section 9)
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-2.2 Operation
2.2.01 The distribution network within the protected area may be divided in sections, each having an independent section valve.
2.2.02 In the standby position, all section valves are open.
2.2.03 A standby pressure of about 25 bar is maintained in the system by a pneumatic pump.
2.2.04 The discharge is actuated when one or several heat sensitive sprinkler bulbs break, opening the access of water through the activated sprinkler(s).
2.2.05 At activation, the standby pressure creates a flow of water through the relevant section valve.
2.2.06 The pressure drop in the pipework creates a signal and the pump motors are automatically started in sequence, with a few seconds between each, in order to prevent excessive electric peak loads.
2.2.07 The pumps will begin to supply the system with water at the maximum pressure of the pumps, typically 140 bar. Minimum pressure at the sprinklers is 80 bar.
2.2.08 Upon activation, the system will discharge on a continuous basis for the duration of discharge through the tubing distribution system and the open HI-FOG sprinklers.
2.2.09 The discharge may be interrupted at any time by closing the shut-off valve. This should only be done at the direction of the fire department or the authority having jurisdiction after a review of the fire area.
2.2.10 A schematic view of a typical system is shown in App 01.
Document Ref: MO/ES/13/DIOM/FM/03 Revision: 1.1 Date of Issue: April '05
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-3.0 PUMP UNIT
3.0.01 The pump unit has to supply the system with water at a minimum pressure of 80 bar at the sprinklers.
3.0.02 The pump unit shall be stored in the temperature range + 4oC – 54oC. This may require customized heating or cooling facilities subject to the application and storage environment.
3.0.03 The electric pump unit (SPU) is modular, and in its standard form one module features one electric motor connected to two high-pressure pumps (for a 2-module marine unit SPU 2, see Technical Data Sheet TE2000).
3.0.04 The actual pump unit is project-specific: the number of pumps as well as their operating pressure depend on the size of the most demanding section as well as on the pressure drop to the most distant section. Also, the pump unit may come with or without a break tank.
3.0.05 More detailed information about the pump unit is given in the SPU Operating and Maintenance Manual P31000FM and Technical Data Sheet TE1002.
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-4.0 SPRINKLERS
4.0.01 HI-FOG sprinklers are precision-engineered devices, designed to deliver a water mist discharge in a form that ensures fire suppression or control. The sprinkler comprises a brass body with the bulb holder, a bulb, a strainer and a piston.
In the HI-FOG 2000 series of sprinklers the discharge orifices are drilled directly onto the sprinkler body and piston.
4.0.02 Within the constraints of this manual, the following HI-FOG 2000 sprinklers are to be used:
Type K factor Technical Data Sheet
C10 – 57C 4.1 TC2010
C20 – 57C 4.1 TC2030
C12 – 57C 1.9 TC2022
S10 – 57C 3.5 TC2060
S20 – 57C 3.2 TC2080
4.0.03 In their standard form the sprinklers are equipped with 57 oC rated 2 mm bulbs.
4.0.04 The sprinklers are coupled to purpose designed mounting assemblies (Technical Data Sheets TC8410, TC8420, TC8430, TC8440, and TC8450) that are being fitted at the time of the distribution network installation.
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-5.0 DISTRIBUTION NETWORK
5.0.01 The piping system features a single line arrangement.
5.0.02 Pipe and fitting standards shall be in accordance with the recommendations of FM Global and the most current edition of NFPA 750 and approved by Marioff Technology Division.
5.0.03 At the Distributors’ option, Marioff will supply the required pipe and fittings within the scope of the system supply.
5.0.04 All piping parts and fittings are Marioff standard components (relevant Technical Data Sheets TA0000-TA9999, TB0000-TB9999) or equivalent.
5.0.05 The piping is made of corrosion resistant AISI 304 or 316 stainless steel according to DIN standard or equal, ensuring a long lifetime and clean water.
5.0.06 The standard pipe sizes used in HI-FOG systems are
Diameter (mm) Wall thickness (mm)
12 1.2 16 1.5 20 2 25 2.5 30 3 38 3.5
5.0.07 The connections are ferrule type DIN 2353 joints or SAE 518J flange joints. The couplings are made of AISI 303 or 316, or of brass Ms 62.
5.0.08 Strength calculations of the piping system with all its components shall meet the requirements and regulations of the authority having jurisdiction. Normally, the system is designed with a safety factor of 4 on the minimum burst pressure.
5.0.09 Pipe clamps are equipped with steel bottom and cover plates. The distance between clamps is to be in accordance with the requirements of the most current edition of NFPA 750.
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-6.0 VALVES
6.0.01 There are two types of valves in the distribution network: section valves and flushing valves.
6.0.02 The network is isolated from the electric pump unit by section valves (see Technical Data Sheets TD1040, TD1240, TD1820, TD3020, TD3021 and TD5020).
6.0.03 The valves are always to be locked in open position except when the section is being serviced, or after operation to close down the system.
6.0.04 Each sprinkler section is equipped with a flushing valve in the most remote point of the section. It is used to flush the section prior to commissioning and in connection with maintenance.
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-7.0 INSTALLATION AND DIMENSIONING PARAMETERS 7.1 Installation Criteria
7.1.01 The following specifications and installation criteria apply in general:
Max ceiling height (m) 2.5 5
Sprinkler Type C10 C20
K factor (lpm/bar1/2) 4.1
Installation Location Ceiling level
Projection Downward
Max spacing (m) 5
Max distance from walls (m) 2.5
Max coverage area per sprinkler (m2) 25
Minimum flux density (lpm/m2) 1.5
7.1.02 Small rooms and corridors of max 2.5 m ceiling height may be protected also by applying the following specifications and installation criteria:
Rooms Rooms ≤ 25 m2 Corridors ≤ 1.5 m wide
≤ 16 m2 Option 1 Option 2 Option 1 Option 2
Sprinkler Type C12 C10 S10 C10 S20
K factor (lpm/bar1/2) 1.9 4.1 3.5 4.1 3.2
Installation Location Ceiling Ceiling Sidewall Ceiling Sidewall
Projection Pendent Pendent Horizontal Pendent Horizontal
Max spacing (m) One sprinkler 5.4
7.1.03 In actual installations where the installation criteria of the table in 7.1.01 and 7.1.02 cannot strictly be applied, the following guidelines shall be followed:
- The coverage should be as symmetric and homogeneous as possible.
- The spacing between sprinklers may vary from plus 5 % to minus 50% of the specified spacing - In no case may the maximum coverage area per sprinkler be exceeded.
7.1.04 Ceiling mounted sprinklers must be installed within 300 mm under the ceiling. Sidewall sprinklers must be installed between 40 - 150 mm below the ceiling.
7.1.05 Examples of sprinkler installations are shown in Apps 02/03/04.
Not covered by FM Light Hazard Approval
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-7.2 Dimensioning Criteria
7.2.01 The system water supply dimensioning is based on simultaneous operation of nine sprinklers and on at least 30 min discharge time. For FM Approved systems the water supply shall be capable of supplying 60 minutes of water to the most remote nine sprinklers or 140 m2 area, whichever is greater, at the minimum rated operating pressure of 80 bar.
7.2.02 The system design pressure is 80 bar at the sprinklers.
7.2.03 The nominal water flux density is 1.5 lpm/m2. 7.3 Hydraulic Calculations
7.3.01 Hydraulic calculations are to be made using the Darcy-Weisbach calculation methods for high-pressure flows.
7.3.02 The calculations shall be done by Marioff or – if done by an installer – reviewed by Marioff.
Copies of the calculations shall be provided to the end user along with engineering drawings of the system.
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-8.0 WATER SUPPLY AND SYSTEM FILTRATION
8.0.01 Water used for the HI-FOG systems should be the equivalent of a potable supply. In all cases the fill line must be routed through a < 100 µm filter (supplied with the system).
8.0.02 The system is supplied with water from an external water supply.
8.0.03 The system water supply must be supervised at all times.
8.0.04 Under no circumstances should additives of any type be applied in the stored water supply, if applicable.
8.0.05 The system has to be properly cleaned and flushed before it is connected to the pump and commissioned as described in Section 10. The cleanliness level must be maintained at all times.
8.0.06 Each individual sprinkler is fitted with a 300 µm strainer to prevent any particles carried in the discharge network from clogging the discharge orifices.
8.0.07 A break water tank may be provided with the system according to the project specifications. The amount of water in the tank is sufficient to supply the most demanding design area for at least one minute.
Document Ref: MO/ES/13/DIOM/FM/03 Revision: 1.1 Date of Issue: April '05
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-9.0 ELECTRICAL AND CONTROL SYSTEMS
9.0.01 The system is monitored by an FM Approved control panel. It contains at least the following:
- low standby pressure warning indicator - lost water supply indicator
- indicator light for general system fault - alarm bell with reset button
- lamp test button - system pressure gauge
- indicator lights depicting the fire sections and section valves (optional) - reset button.
9.0.02 The pump unit power, supply wiring and circuit breakers/fuses shall comply with FM Data Sheet 3-7N and the most current edition of NFPA 20.
9.0.03 Upon activation, a signal is generated by the section valve, which gives an indication to the control panel that the system has been activated.
9.0.04 When the fire fighting procedure is completed, the system must be inspected, serviced, and reset manually by personnel certified by the manufacturer.
9.0.05 The system control panel must be secured against unauthorized use.
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-10.0 FIELD INSTALLATION 10.1 Piping
10.1.01 System distribution piping will be routed and installed in accordance with the project specific drawings and/or instructions prepared by the Distributor as a part of the project documentation.
10.1.02 Cutting, bending, attachment of fittings and pipe cleaning will take place during field installation.
10.1.03 All such work shall be carried out in accordance with the instructions of the Marioff approved pipe and fittings supplier.
10.1.04 Installers shall be trained and certified in installation procedures for their products, by the selected fitting supplier.
10.1.05 All piping, once cut to length and de-burred, shall be thoroughly cleaned internally prior to installation.
10.1.06 Cleaning shall be carried out to Standard NAS 1638, Class 9 or ISO 4406, Class 18/15.
10.1.07 All support brackets and clamps shall be welded or bolted securely and at spacing compliant with the Marioff recommendations.
10.1.08 It shall be ensured that all fittings are tightened in accordance with the fitting manufacturers’
instructions and all brackets/clamps are secure.
10.1.09 On completion of the field distribution network and installation of the sprinklers, a full pressure test shall be carried out, utilizing a proprietary pressure testing pump device.
10.1.10 Hydrostatic testing of the piping system is performed separately for each section. The sections shall be pressurized to 1.5 × working pressure without loss for a period of 30 minutes or as otherwise determined by the authority having jurisdiction.
10.1.11 In the event of leakage, the pressure shall be removed from the system, appropriate corrective action taken and the test procedure repeated.
10.1.12 Instruction signs for the section valves, as well as a general arrangement drawing of the section shall be fastened next to each valve.
10.1.13 Signs showing the flushing valves shall be fastened next to each valve.
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-10.2 Sprinklers
10.2.01 Verify that the strainer and seals are correctly positioned on the sprinkler.
10.2.02 Install the HI-FOG sprinklers by screwing them into mounting adapters. Tighten the sprinklers with the Marioff sprinkler wrench.
10.2.03 Special care must be practiced in the installation such that the efficient spray distribution of the sprinkler may not be disturbed by obstructions close to the sprinkler.
10.2.04 Width of obstruction/clearance is subject to case-by-case approval but – as a first guideline – the following installation rules should be taken into account (App 05).
10.2.04.1 The width of any obstruction directly below a sprinkler shall not be wider than 1.5 times its vertical distance to the sprinkler. This is to guarantee that only the center spray at most will be partially blocked, which represents less than 15 % loss of the full flow capacity of the sprinkler.
10.2.04.2 For a beam-like obstruction the maximum width is 0.5 times the vertical distance. This is to guarantee that only a small portion of the center spray and (max) two side sprays will be blocked.
10.2.04.3 A minimum of 0.5 m clearance shall be maintained between the sprinkler and the top of the obstruction.
10.2.04.4 In case of large horizontal obstructions, additional sprinklers should be located below the obstruction.
10.2.04.5 Sprinklers shall be positioned so that the minimum horizontal distance from a sprinkler to obstructions such as lighting fixtures and ventilation ducts is not less than 0.2 m, or twice the depth of the obstruction from the ceiling, whichever is larger.
Document Ref: MO/ES/13/DIOM/FM/03 Revision: 1.1 Date of Issue: April '05
Document Ref: MO/ES/13/DIOM/FM/03 Revision: 1.1 Date of Issue: April '05