Fire Extinguishing System - Viessmann Vitoflex 300-UF Series Installation And Operating Instructions Manual

Mechanical

Fire Extinguishing System

The fire extinguishing system functions independent from
the electrical power and is flooding the material which is
still remaining in the in-feed auger in case of back-burn.
The activation temperature is approximately 200°F (95°C)
Fire extinguishing system for the in-feed auger
Note: The fire extinguishing system for the in-feed auger
is part of the boiler.
- Line from the extinguishing water container to the b in.
valve (as short as possible).
- Valve thermostatic, Danfoss AVTA 15 122°F - 194°F
(50°C - 90°C) position 3 equals approximately
176°F (80°C).
- The lines must be executed as hard piping in metal (b in.).
- It must not be possible to shut off the cold water inlet
without the aid of tools.
- Be especially sure to comply with the instruction in the
Fire Protection section.
Legend
A Combustion
B Metering Container
C Fuel supply
D Extinguishing water container 6.6 USG (25 L)
E N25 floater switch
CW Cold water supply b in. min. 30 psi (2.0 bar),
max. 45 psi (3.0 bar)
32
Vitoflex 300-UF Installation & Operating
Fire extinguishing system for the conveyor auger
Note: The fire extinguishing system for the conveyor
auger is optional.
Fire extinguishing system for the down pipe
Note: The fire extinguishing system for the down pipe
is optional.
Note: A slide valve is required as standard for
an unpressurized material store or a rotary valve
for a material storage with overpressure or
underpressure (charging with blower,
e.g. wood processing operations).
The lines must be executed as hard piping in metal (b in.).
It must not be possible to shut off the cold water inlet
without the aid of tools.
Be especially sure to comply with the instruction in the
Fire Protection section.