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** It is advisable that the Installation and Operating Manual remains with the
product for the duration of the product lifecycle.
The Grundfos FireSAFE supplies water, usually from a storage tank, via a riser system within
the building to a series of sprinkler heads. When the air temperature around a sprinkler head
reaches a predetermined level, the glass bulb bursts, leading to a loss of system pressure and a
flow of water through the sprinkler head. Only sprinkler heads affected directly by the heat
source will operate.
This loss of pressure is detected by the Grundfos FireSAFE unit, via an internal pressure switch,
activating the pump.
6.0 Key Product Components
6.1 Pump
From the Grundfos high quality CR centrifugal horizontal multi stage range.
Further details on the FireSAFE Data sheet
6.2 Pressure gauge
Providing visual indication of the system pressure and for fine tuning the pressure switch
setting. Depending on pump size the Range of the Gauge is 0 - 10 bar or 0 – 16 bar.
6.3 Pressure switches (Primary and Secondary)
The FireSAFE unit operates directly from an integrated pressure switch. This pressure switch is
adjusted to meet the site specific requirements. See the section 9.1 regarding Pressure switch
setting. A secondary back up pressure switch is provided in case of failure of the primary
pressure switch. This activates at a factory set value of 1 Bar.
6.4 Non-return valve
Included within the product to maintain the system pressure.
6.5 Flow Switch
Included within the product and is used to indicate the presence of a fire and give an alarm as
the only device allowable under BS9251:2014. The flow switch provided incorporates an
adjustable delay option. This should be optimised to the site conditions to prevent activating
the Fire Alarm unnecessarily
6.6 BS 9251:2014 test line connection
The FireSAFE unit includes a 1” Test line with lockable ball valve. The FireSAFE CR only includes
provisions (1” blanked BSP port) for this test line. This facilitates the annual system test to be
performed according to BS 9251:2014.
Care should be taken when connecting onto this port, to minimize risk of water spillage and
associated issues this may have with any nearby electrical equipment. The unit should be fully
isolated before using this port.
NOTE
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