Filling The Fuel Storage Unit - Viessmann Vitoflex 300-UF Series Installation And Operating Instructions Manual

Vitoflex 300-UF Installation & Operating

Filling the Fuel Storage Unit

When storage facilities for wood are required, the wood
should be kept at least 5 ft. (1.5 m) from the heating
appliance.
CAUTION
Risk of fire when fuel is being blown into the fuel store.
Dangerous pressure changes arise in the combustion
chamber as a result.
Switch off the heating system at the mains isolator
before blowing in fuel. Safeguard the system against
reconnection.
Systems with horizontal and flexible agitator discharge
If the fuel store is empty, fill the fuel store until the
articulated arms or leaf springs are covered by approx.
12 in. (300 mm) of fuel.
Turn the "Silo filling" key switch. The arms are rotated
for 90 seconds and then come to rest. After this, the
function of the "Silo filling" key switch is blocked for
10 minutes.
Fill the fuel store until it is full.
Fill the fuel store without delay when there is still more
than approx. 12 in. (300 mm) of fuel above the articulated
arms or leaf springs.
Systems with funnel discharge
So as not to damage or block the screw conveyor, it must
be moved to a vertical position when filling the fuel store.
If it can be ensured that the specified pressure conditions
in the fuel store can be maintained, the system can be
switched on while the fuel store is being filled.
This ensures that the screw conveyor remains vertical.
Horizontal extraction system and spring extraction system
If any excess or negative pressure develops in the silo
during the filling, the facility has to be switched off using
the silo filling key switch on the control panel.
After doing so, complete filling the silo evenly and turn
the facility back on, using the silo filling key switch on
the control panel. Carry out refilling in the same manner.
By blowing in
IMPORTANT
The heating system has to be shut off (danger of excess
pressure or negative pressure caused by the action of
blowing-in). Filling procedure as described in the section
"By dumping".
Fixing malfunctions in the feed system
Refer to the Installation and Operating Instructions for
details on the automatic fuel-feeding device.
If fuel hopper is installed, do not alter equipment in any
way. The cause of motor malfunctions in-feed systems
is usually clogging by large pieces of wood or foreign
matter.
Switch off the facility using the function button on the
control panel and wait until there is no more fuel in the
feed auger. Fill the silo evenly to approximately 12 in. (300
mm) above the articulated arm or over the spring-mounted
blades, switch on the facility using the function button on
the control panel and wait until the articulated arms or the
spring-mounted blades go under the cup washer.
CAUTION
DANGER OF INJURY:
Always turn OFF the main switch before carrying out any
repair of a malfunction on feed systems and every time
before a maintenance lid is opened or a protective device
is removed!
Because of the automatic operation of the system it is
impossible to foresee the time the conveying equipment
will be turned on.
Note: Viessmann recommends the installation of carbon
monoxide detector(s) inside the fuel storage area.
IMPORTANT
The fuel storage area/room must be designed, operated
and maintained to national, provincial and local codes and
requirements.
WARNING
The wood chip/pellet storage room must be adequately
and permanently ventilated. Ensure the door or latches
are securely locked open during presence in the room.
No smoking, fires or open flames are permitted.
Operation
73