Viessmann Vitoflex 300-RF Technical Data Manual page 31

Vitoflex 300-RF Technical Data
Ecocontrol Accessories
Mounting of the control panel
The control panel should be in an area where the heat
radiation (front side of boiler, rear side of boiler with flue
gas deduster and flue gas exhaust blower as well as
recirculation line) and the exposure to dust during
cleaning is at a minimum.
The ambient temperature for the control panel (approx.
4 in. (100 mm) away from the control cabinet) should not
exceed 104°F (40°C) while the system is in operation.
The minimum temperature must not be less than 50°F
(10°C). In case of doubt, preference should be given to
placing the control panel outside the mechanical room
near the heating room door.
Electrical connection
- Install the control panel according to the field wiring
diagram. The field wiring diagram is supplied with the
control panel.
- In the area of hot parts (flue gas exhaust blower, flue
gas pipe), the lines should be installed in steel pipes at
an appropriate distance so as to be protected from
excessive temperatures. See section "Boiler Wiring".
- The cable bushings to the motors and equipment
must be dust-tight and provided with a strain relief.
Triggering System for external drive
Function:
Starttec, motor soft start for optimized connection of an
external conveyor drive or rotary valve without reversal.
A CAN bus is used to directly connect the motors to the
gentle start-up system via the Ecocontrol. Temperature-
monitored and protected against overloading. Its
electronic circuit breakers are wear-free, even at high
switching frequencies.
Supplied with:
- Starttec completely integrated in the control cabinet
- Parameter assignment for the drive function
- Input in the control cabinet for safety end switch on
the maintenance cover
- Output in the control cabinet for external conveyor
drive
Customer supplied:
- Delivery and/or installation of safety end switch for
the external conveyor drive
Note: Only for Vitoflex 300-RF. Starttec is built into the
control cabinet for the boiler plant.
Only possible with defined, limited material feed
facility (upstream conveyor auger)
Triggering System for external drive with light barrier
Function:
Starttec motor starter for optimized connection of an
external conveyor drive without reversal. A CAN bus is
used to directly connect the motors to the gentle start-up
system via the Ecocontrol. Temperature-monitored and
protected against overloading. Its electronic circuit breakers
are wear-free, even at high switching frequencies.
Additional protection of the external drive through level-
monitoring system of the further feed system by means
of a light barrier. The light barrier connects directly to
the Starttec for the continuing feed system, affecting the
extraction system.
Supplied with:
- Starttec completely integrated in control cabinet
- Parameter assignment for the drive function
- Input in the control cabinet for safety end switch on
the maintenance cover
- Output in the control cabinet for external conveyor
drive
- Infrared light barrier, level-monitoring system for fuel
Customer supplied:
- Delivery and/or installation of safety end switch for
the external conveyor drive
Note: Only for Vitoflex 300-RF. Starttec is built into the
control cabinet for the boiler plant.
Note: The control system components below are reserved
for the Vitoflex 300-RF Single-unit System.
With the Vitoflex 300-RF Double-unit System,
these functions are included in the Mastercontrol.
Thermal Storage Tank Management System 3 Sensors
Function:
Using a heat accumulator improves the modulating output
operation of the Vitoflex 300-RF grate firing system.
In addition, sudden heat requirement peaks are covered.
The accumulator's load of heat is detected by the
temperature sensors. The firing power is adapted to
the accumulator's degree of loading.
Supplied with:
- Two additional sensors with sensor well,
1/2" x 280 mm
Electrical
31