DESCRIPTION
Technical parameters
Table No. 1 :
Basic LES-RACK-M1 parameters:
Value:
Output voltage the AC network
100-240 VAC
Frequency
50-60 Hz
Current at 230V AC
0.9 A
Current peak
70 A
Efficiency
88%
Current leakage at 230V AC
<1mA
Input-output insulation voltage
3,000 VDC
Insulation voltage input-ground
2,000 VDC
Output voltage
12 VDC
Coverage IP
20
Coolant tank volume
2kg
Working temperature
+5 to +40
o
C
Storage temperature without extinguishing liquid
-40 to +80
o
C
Relative humidity (non-condensing)
20-90%
Dimensions: (width - height - depth)
483x45x495 mm
Weight without the extinguishing agent
11kg
Construction
The body is of sheet metal steel. The tank and transport routes of the extinguishing agent are of
stainless steel or non-corroding materials. All the materials are tested, they are resistant to the stated
working conditions and the used extinguishing agent is stable throughout the service life of the device.
All the metal parts of the box, including the tank, are sprayed with black polyester powder paint (RAL
9005). The minimum layer of the coat is 60 µm. Adhesion corresponds to level 0-1 according to ČSN ISO
2409. The surface must not have defects such as abrasions, flashes, dirt, etc.
The mechanical design, including the layout of the equipment parts, is shown in Fig. 1.
The fire fighting equipment consists of:
Tank with extinguishing agent (1)
consisting of non-pressure stainless storage vessel (1), filled with
the extinguishing agent (FK-5-1-12, dodekafluor-2-methylpentan-3-on)). The volume of the tank is 2kg
of the extinguishing agent.
Level gauge (2)
built-in to the left front of the tank. It is for continuously inspecting the amount of
extinguishing agent. When the level falls below the adjusted limit, the “System error ”signal is
activated. At the same time, this situation can be signalled through the network.
Overpressure valve (3)
built-in to the left rear of the tank. It protects the equipment if the tank fails
and is overheated above the permitted temperature limit when the extinguishing agent in the tank
may turn to gas.
Suction valve (4)
built-in to the rear of the tank with no access from the outside. It removes under-
pressure in the tank when the extinguishing agent is pumped from the tank (extinguishing).
Filling hole (5)
also built-in to the rear of the box but with access to the outside. It is closed by the
3/8 “cap . The filling hole is used to for add the extinguishing agent.
Pump (6)
when extinguishing it pumps the extinguishing agent from the tank. Then , the extinguishing
agent is directed through hermetically sealed piping system,
an electromagnetic valve (7) and the
nozzle (8)
and is sprayed under pressure into the protected space. The equipment can be used where
installed and if re-filled, checked and used again.
Summary of Contents for LES-RACK-M1
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