Danfoss Semco SEM-SAFE End User Manual

High-pressure water mist pump unit

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END USER MANUAL

SEM-SAFE® HIGH-PRESSURE WATER MIST PUMP UNIT

REVISION 4, MAY 2016

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Page 1 END USER MANUAL SEM-SAFE® HIGH-PRESSURE WATER MIST PUMP UNIT REVISION 4, MAY 2016...
Page 2 All rights reserved. No part of this manual may be reproduced, distributed, or transmitted in any form or by any means, including photocopying, recording, or other electronic or mechanical methods, without the prior written permission of Danfoss Semco. For permission request, please contact us: Danfoss Semco A/S Middelfartvej 9, 5000 Odense C, Denmark Tel.: +45 74 88 78 00...
Page 3 SEM-SAFE High-Pressure Water Mist Pump Unit manufactured by Danfoss ® Semco A/S. This manual is prepared for system owners and users of the SEM-SAFE High- Pressure Water Mist Pump Unit. If you encounter any problems with the system, please contact Danfoss Semco A/S Service department (email: service@danfoss-semco.com).
Page 4: Table Of Contents
Table of Contents Introduction ..........................7 ® Safety instructions for SEM-SAFE pump unit ..............7 1.1.1 General Safety instructions ....................7 1.1.2 Workplace Safety ......................7 1.1.3 Electrical Safety ....................... 7 1.1.4 Personal Safety ........................ 8 1.1.5 Personal Safety Equipment ....................8 Copyright, Confidentiality Statement and Trademark ............
Page 5 Increasing discharge capacity in a fire situation..............34 Shut-down of pump unit after activation (fire suppression) ..........34 ® Reestablishment of the SEM-SAFE system after starting up .......... 35 Pump unit maintenance ......................36 Maintenance of land units according to CEA 4001 ............36...
Page 6 Maintenance according to FM Global ................39 Maintenance according to VdS Schadenverhütung ............42 Maintenance of marine units according to MSC.1/Circ. 1432 .......... 45 PAGE 6 / 48 END USER MANUAL OPERATION AND MAINTENANCE OF HIGH PRESSURE WATER MIST PUMP UNIT REVISION 4, MAY 2016...
Page 7: Introduction
High-Pressure Water Mist Pump Unit and system operates under high pressure and high voltage. ® Care must be taken when operating the SEM-SAFE High-Pressure Water Mist Pump Unit. Installation, test, commissioning and service of the system is only to be carried out by appropriately trained, competent personnel.
Page 8: Personal Safety
IMPORTANT. When the work is finished on the pump unit, the main switch ® must be turned on again. If the main switch is not turned on, the SEM-SAFE pump unit will not activate if a fire occurs in the protected areas.
Page 9: Liability
Consequently, Danfoss Semco A/S will reserve the right to revise and improve this manual without prior notification. All trademarks in this manual are property of Danfoss Semco A/S. Danfoss Semco A/S logotype is a registered trademark and is property of Danfoss Semco A/S. All rights reserved.
Page 10: Reservation Clause
Danfoss Semco A/S can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss Semco A/S reserves the right to alter its products without notice. This also applies to products already on order provided that such alterations can be made without subsequent changes being necessary in specifications already agreed.
Page 11: System Description
System description General system description ® The SEM SAFE High-Pressure Water Mist System consists of nozzles, pipe work, section valves and pump unit and can be classified as one of the following four different types of systems:  Wet Pipe Water Mist System ...
Page 12: General Description Of Deluge Water Mist System
All assemblies are mounted on a common skid frame. Pump unit with unit tank ® During operation of the SEM-SAFE High-Pressure Water Mist Pump Unit with unit tank, the water from the unit tank is pressed from the pump through a non-return valve and into a common high- pressure manifold.
Page 13: Pump Unit With Supply Manifold (Without Unit Tank)
High-Pressure Water Mist Pump Unit. Delivery is performed either with the help of a booster pump between the reservoir and the supply manifold or ® with the reservoir tank placed on a higher level than the SEM-SAFE High-Pressure Water Mist Pump Unit, ensuring positive water flow.
Page 14: High-Pressure Pumps
® discharge water stream. A typical SEM-SAFE High-Pressure Water Mist Pump Unit consists of 1 to 8 electrically driven, stainless-steel high-pressure pumps.
Page 15: Electric Motors
The unit tank is made of stainless steel grade AISI 316, the capacity of the tank is adapted to the ® discharge capacity of the SEM-SAFE High-Pressure Water Mist Pump Unit. As standard, the unit tank capacities are 820l, but for large capacity units the tank capacity is 1200l. There is also available a version of unit tank with capacity of 300l for special applications.)
Page 16: Supply Manifold
The supply manifold delivers the water under low pressure (min. 1-3 bar) from the outside reservoir ® into the SEM-SAFE High-Pressure Water Mist Pump Unit. Delivery is performed either with the help of a booster pump between the reservoir and the supply manifold or with the reservoir tank placed on a higher level than the pump unit, ensuring positive water flow.
Page 17: High-Pressure Manifold
Figure 6. Example of supply manifold High-pressure manifold The high-pressure manifold collects and discharges water pumped from the pilot pump (wet system) or high-pressure pumps through the main valve into the water mist distribution pipe system. The main components attached to the manifold are described in the following chapters. Figure 7.
Page 18: Valves
® The standard SEM-SAFE High-Pressure Water Mist Pump Unit is provided with one pressure relief valve installed in each PAGE 18 / 48...
Page 19: Filter System
In order to avoid contamination, clogging of water mist nozzles and malfunction of pumps and ® valves, the extinguishing water has to be filtered before it is delivered into the SEM-SAFE High- Pressure Water Mist Pump Unit. On pump units with a unit tank, the filter is mounted before the water supply reaches the tank.
Page 20: Emergency Back-Up System
The required grade of filtration is 10µmeter. The ΔP across the filter cartridge should be limited to 1.5bar. Minimum water supply pressure through the filter system should not be less than 2.5bar and max. 5.4bar. Figure 12. Filters 3.13 Emergency back-up system In case of loss of power from the main supply and pressure drop under 5bar, the emergency back-up system (cylinder unit) shall be capable of supplying the required pressure to the most remote nozzle in the system, until emergency power is available for the pumping system, or not less than 1 minute of...
Page 21: Standard Unit Control Panel
3.14 Standard Unit Control Panel ® The Unit Control Panel constantly monitors the function of the SEM-SAFE High-Pressure Water Mist Pump Unit. It controls power and water supply for failure as well as monitors alarm and system status. It informs of any failure and which parts of the unit are working during activation of the system.
Page 22: Operation And Maintenance Of High Pressure Water Mist Pump Unit
Then the unit will automatically control the pressure level and turn on additional high-pressure pumps if required. ® Lamp which indicates that an error/failure occurred in the SEM-SAFE System error light High-Pressure Water Mist Pump Unit. When it is ON, a description of and system reset error the failure appears on the Alarm Display.
Page 23: Operation And Maintenance Of High Pressure Water Mist Pump Unit
Alarm display on UCP ® In ready mode, without any alarm, the display shows the unit tank level (for the SEM-SAFE High- Pressure Water Mist Pump Unit with unit tank) and actual pressure on the manifold (pilot pressure).
Page 24: Operation And Maintenance Of High Pressure Water Mist Pump Unit
Note: Refer to the DIOMA (Design Installation Operation Maintenance Approval) manual for your system received from Danfoss Semco A/S to see a complete list of alarms, their meaning and ways to solve the problem. PAGE 24 / 48...
Page 25: Marine Application
High-Pressure Water Mist Pump Unit might not contain all of them. Button/Lamp/Switch Description ® Lamp is turned on when the SEM-SAFE High-Pressure Water Mist System ready Pump Unit is ready to run. It indicates normal stand-by operation when supply is turned on.
Page 26: Operation And Maintenance Of High Pressure Water Mist Pump Unit
Pump Unit is connected to the emergency supply. Lamp should be switchboard turned on at all times during operation. ® Button for manual start of the SEM-SAFE High-Pressure Water Mist Pump Unit. By pressing the button, the first pump on the unit will start. ®...
Page 27: Operation And Maintenance Of High Pressure Water Mist Pump Unit
Panel are functioning properly. When pressed, all lamps will turn on. If they do not, you should check the bulbs and wiring of lamps. ® Emergency stop push Push button for emergency stop of the SEM-SAFE High-Pressure Water Mist Pump Unit. button Displays failures which may occur.
Page 28: Operation And Maintenance Of High Pressure Water Mist Pump Unit
8: opt FW PUMP FAULT Note: Refer to the DIOMA (Design Installation Operation Maintenance Approval) manual for your system received from Danfoss Semco A/S to see a complete list of alarms, their meaning and ways to solve the problem. PAGE 28 / 48...
Page 29: Vds Unit Control Panel
Lamp test will turn on. If they do not, you should check the bulbs and wiring of lamps. ® Lamp is turned on when the SEM-SAFE High-Pressure Water System ready Mist Pump Unit is ready to run. It indicates normal stand-by operation when supply is turned on.
Page 30: Operation And Maintenance Of High Pressure Water Mist Pump Unit
6 bar and the high-pressure pump starts working. ® Blue lamp which turns on during service of the SEM-SAFE High-Pressure Water Mist Pump Unit in order to let the service Disabled below 6 bar technician know that automatic start of the high-pressure pump after pressure drops below 6 bar is disabled.
Page 31: Operation And Maintenance Of High Pressure Water Mist Pump Unit
Please see the list of alarms below. Alarm display on UCP ® In ready mode without any alarm, the display shows the unit tank level (for SEM-SAFE High- Pressure Water Mist Pump Unit with unit tank) and actual pressure on the manifold (pilot pressure).
Page 32: Fm Global Unit Control Panel
Note: Refer to the DIOMA (Design Installation Operation Maintenance Approval) manual for your system received from Danfoss Semco A/S to see a complete list of alarms, their meaning and ways to solve the problem. 3.14.4 FM Global Unit Control Panel ®...
Page 33: Operation And Maintenance Of High Pressure Water Mist Pump Unit
Functional description of buttons, lamps and switches placed on the unit control panel is presented below. Figure 20. Example of an FM Global Unit Control Panel Button/Lamp/Switch Description Audio alarm in case of error/failure. Buzzer Button for manual start of the unit. Unit start Unit stop Button for manual stop of the unit.
Page 34: Pump Unit Operation
Pump unit operation Pump unit activation ® With the SEM-SAFE High-Pressure Water Mist Pump Unit in stand-by mode (pilot pressure maintained at 10-14 bar), activation of one or more water mist nozzles causes a sharp pressure drop in the system. The pressure drop and increasing water demand is monitored by the system pressure transmitter which at pressure below 6 bar creates a start signal initiating the high-pressure pump’s...
Page 35: Reestablishment Of The Sem-Safe System After Starting Up
® Reestablishment of the SEM-SAFE system after starting up If the system has been activated, the following procedure must be followed to bring the system back to the ready state.
Page 36: Pump Unit Maintenance
Pump unit maintenance Maintenance of land units according to CEA 4001 ® To maintain operational readiness of the SEM-SAFE High-Pressure Water Mist Pump Unit, regular inspections and repairs shall be carried out. This section describes the minimum measures to be taken and the parties responsible for carrying them out.
Page 37: Revision 4, May
The following shall be checked and recorded: Weekly routine The fill levels of water tanks (storage tanks, reduced capacity tanks, ground and elevated tanks and break water tank). System standby pressure. Functionality of heating equipment (during heating period) in the water mist equipment room, for wet pipe systems if installed etc.
Page 38: Operation And Maintenance Of High Pressure Water Mist Pump Unit
Raise the pump running signal, check that the alarm is received at the fire brigade. In addition to the weekly routine checks, the below mentioned inspections shall be carried out at intervals of not more than 12 months by a Danfoss Semco approved service company. PAGE 38 / 48...
Page 39: Maintenance According To Fm Global
This includes action to be taken in respect of faults and operation of the ® system, with particular mention of the procedures for emergency manual starting of SEM-SAFE High-Pressure Water Mist Pump Unit, and details of weekly control as described in the following section.
Page 40: Operation And Maintenance Of High Pressure Water Mist Pump Unit
For systems where operational status is monitored automatically, daily controls are not necessary. For monitored systems, the daily inspection can be deleted and the daily test carried out together with the weekly routine that shall be carried out at intervals of not more than 7 days. The following shall be checked and recorded: Daily/weekly inspection The fill level of the unit tank.
Page 41: Operation And Maintenance Of High Pressure Water Mist Pump Unit
The following checks and inspections shall be made and recorded at intervals of not more than 6 months: Half-yearly Servicing Routine by Danfoss Semco Approved Installer Test operation of manual starting means (electrical system). Check and test operation of safeties and alarms (electrical system).
Page 42: Maintenance According To Vds Schadenverhütung
Maintenance according to VdS Schadenverhütung ® To maintain operational readiness of the SEM-SAFE High-Pressure Water Mist Pump Unit, regular inspections and repairs shall be carried out. This section describes the minimum measures to be taken and the parties responsible for carrying them out.
Page 43: Operation And Maintenance Of High Pressure Water Mist Pump Unit
Daily/Weekly routine The fill levels of the unit tank. System stand-by pressure. Automatic pump starting test No errors indicated on the pump unit motor control panel. No leakage from the pump unit. The correct operational positions of unit stop and test valves. The audible and visual alarm shall be operated for not less than 30 seconds and simultaneously the connection to the fire brigade or the permanently manned location shall be checked.
Page 44: Operation And Maintenance Of High Pressure Water Mist Pump Unit
Each routine of the below listed items shall be carried out by a competent person of the VdS- approved installer who shall provide the operator with a signed, dated report of the inspection and advise of any rectification carried out or needed, and advise of any external factors, which may have affected the results.
Page 45: Maintenance Of Marine Units According To Msc.1/Circ. 1432
Float valves in Float valves supplying water the unit tank shall be checked for correct function. unit tank Filters and Filters in the water supply to the unit shall be inspected and cleaned as strainers necessary. Maintenance of marine units according to MSC.1/Circ. 1432 These guidelines apply to all ships and provide the minimum recommended level of maintenance and inspection for fixed fire protection systems.
Page 46: Operation And Maintenance Of High Pressure Water Mist Pump Unit
Annual test and inspection Externally examine all high-pressure cylinders for evidence of damage or corrosion. Check the hydrostatic test date of all high-pressure cylinders. Functionally test unit(s) audible and visual alarms. Flow test all unit pumps for proper pressure and capacity. Verify that all pump unit relief valves are properly set.
Page 47: Operation And Maintenance Of High Pressure Water Mist Pump Unit
NOTES END USER MANUAL PAGE 47 / 48 OPERATION AND MAINTENANCE OF HIGH PRESSURE WATER MIST PUMP UNIT REVISION 4, MAY 2016...
Page 48 All the while, Danfoss has developed and delivered key components for the high- tech systems. Today Danfoss Semco is an integral part of the Danfoss Group, Denmark’s largest industrial manufacturing company with a daily output of more than 250,000 finished components. With more than 24,000 employees worldwide, Danfoss is truly a global company.