Viessmann Vitoflex 300-RF Technical Data Manual
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Viessmann Vitoflex 300-RF Technical Data Manual

Wood-fired boiler
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Technical Data Manual
for use by engineers and heating contractors
Vitoflex 300-RF
Wood-fired Boiler
Vitoflex 300-RF 150, 220, 300, 400 and 540
Product may not be exactly as shown
Vitoflex 300-RF with its patented rotating combustion chamber
design, features the industry's most advanced combustion
technology. An in-feed auger continuously moves the wood
fuel onto a moving grate where gasification takes place.
The combustible gases blend with precisely controlled
secondary air, resulting in a complete combustion with
ultra low emissions.
Output range: RF 150 154 to 512 MBH
RF 220 205 to 751 MBH (60 to 220 kW)
RF 300 273 to 1024 MBH (80 to 300 kW)
RF 400 341 to 1365 MBH (100 to 400 kW)
RF 540 478 to 1843 MBH (140 to 540 kW)
5797 136 - 01
08/2017
(45 to 150 kW)
H

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Summary of Contents for Viessmann Vitoflex 300-RF

  • Page 1 Vitoflex 300-RF Wood-fired Boiler Vitoflex 300-RF 150, 220, 300, 400 and 540 Product may not be exactly as shown Vitoflex 300-RF with its patented rotating combustion chamber design, features the industry’s most advanced combustion technology.
  • Page 2 Product Information Vitoflex 300-RF Technical Data Vitoflex 300-RF Steel wood-fired hot water heating boiler. For operation Codes and standards primarily with modulating boiler water temperatures in CSA B366.1-M91 closed loop forced circulation hot water heating systems. Solid Fuel Fired Central Heating Appliances Under certain conditions, open loop systems may also be CSA C.22.2#3-M88 (R2004)

  • Page 3: Boiler Description

    - In-feed auger including insulating layer, safety end at all load levels. switch for maintenance lid, back-burn temperature The Vitoflex 300-RF Boiler Plant has been built to ASME sensor, extinguisher water container with mounting Sec. IV and has CRN for Canada. It is tested and bracket approved to the applicable CSA / UL safety standards.

  • Page 4: Transport And Installation

    Anti-vibration boiler supports may be used if anti-vibration measures are required. Vitoflex 300-RF 150 - 300: Hoist by the lifting lug. Vitoflex 300-RF 400 - 540: Hoist by boiler supply and boiler return flanges using a lifting lug.

  • Page 5: Delivery Condition

    Vitoflex 300-RF Technical Data Delivery Condition Standard delivery condition The standard delivery condition of the Vitoflex 300-RF Components that are not attached or installed to the boiler at time of delivery (scope of the contractor): boiler includes pre-assembled components as well as...
  • Page 6 General Information Vitoflex 300-RF Technical Data Delivery Condition (continued) Special delivery condition (partially disbanded) The following additional objects will be delivered For special circumstances like restricted space to bring disbanded: the boiler into the heating room, the size of the boiler...

  • Page 7: Wood Fuel Requirements

    The Vitoflex 300-RF is only suitable for burning fuels IMPORTANT listed in this section. A prerequisite for approval is of a fuel by Viessmann is the If different fuels are used, Viessmann will not assume approval for the fuel by the responsible public authorities.
  • Page 8 C1, C7, P1, P2, P4 as per CAN/CSA-B366.1-M91. Vitoflex 300-RF systems is limited to 35%. The water content impacts the maximum boiler output. Note: Fuel for Vitoflex 300-RF systems allow for a max. of 35% water content (W). Non-wood fuels Non-wood fuels, even if consisting of biomass, such as needles, foliage, grain, straw, fruit pits, etc., are unsuited...
  • Page 9 General Information Vitoflex 300-RF Technical Data Wood Fuel Requirements (continued) Content limits for non-combustible substances - No wood fuels may contain any foreign bodies, such as pieces of metal, stones, masonry remnants or plastics. The following limits (per lb/kg of dry fuel) of contained non-combustible substances apply [ash analyzed at a temperature of 1500°F (815°C)]:...

  • Page 10: Power Failure Provision

    Venting Requirements The Vitoflex 300-RF Rotating Combustion system is equipped with a flue gas exhaust blower. This boiler must be properly vented. Use a vent material certified for use with solid-fuel fired equipment.

  • Page 11: Mechanical Room

    IMPORTANT A separate, dry heating room must always be provided for the Vitoflex 300-RF rotating combustion system. Always follow the most up-to-date local, municipal and No combustible materials may be stored in the heating building regulations and codes.

  • Page 12: Combustion Air Supply

    Safety Vitoflex 300-RF Technical Data Combustion Air Supply Confined spaces Codes When a furnace or boiler is enclosed in a space that has Provision for combustion and ventilation air must be made a volume less than 20% of that to be heated by the in accordance with applicable local codes.

  • Page 13: Technical Data

    Mechanical Vitoflex 300-RF Technical Data Technical Data Boiler model RF 150 RF 220 RF 300 RF 400 RF 540 Maximum output MBH (kW) 512 (150) 751 (220) 1024 (300) 1365 (400) 1843 (540) Minimum output MBH (kW) 154 (45) 205 (60)

  • Page 14: Boiler Dimensions

    54c (1390) in. (mm) 26b (673) 26b (673) 26b (673) 26b (673) 29b (750) in. (mm) (1570) (1570) 41e (1050) 52e (1330) 52e (1330) 7 / 8 7 / 8 *1 For Vitoflex 300-RF 400/540 - Suspension gear is detachable.
  • Page 15 Mechanical Vitoflex 300-RF Technical Data Boiler Dimensions (continued) Legend A Boiler Return B Boiler Supply C Automatic de-ashing assembly with ash container (optional) Dimensions Boiler Model RF 150 RF 220 RF 300 RF 400 RF 540 in. (mm) (3415) (3685)

  • Page 16: Boiler Components

    Mechanical Vitoflex 300-RF Technical Data Boiler Components Legend A Pneumatic cleaning system (optional) B Cleaning cover, flue gas collector, alternate port for the flue gas exhaust blower C Cover with sight glass D Recirculation gas line, line routing variable E Igniter...
  • Page 17 Mechanical Vitoflex 300-RF Technical Data Automatic De-ashing Assembly with Ash Container Supplied with: Description De-ashing in Ash Bin, 63.5 USG (240 L) Boiler ash chamber with ash level control system and De-ashing in Ash Bin, 211.3 USG (800 L) de-ashing auger made of high-temperature steel drive...
  • Page 18 Vitoflex 300-RF Technical Data De-ashing in Base Container Description De-ashing in Base Container (for Vitoflex 300-RF 150) De-ashing in Base Container (for Vitoflex 300-RF 220) De-ashing in Base Container (for Vitoflex 300-RF 300) De-ashing in Base Container (for Vitoflex 300-RF 400)
  • Page 19 Pneumatic Cleaning System Description Function of the control system: Pneumatic Cleaning System (for Vitoflex 300-RF 150) The number of cleaning cycles within one time unit (e.g. per hour) is adapted to the load of the boiler. Pneumatic Cleaning System (for Vitoflex 300-RF 220)

  • Page 20: Chimney Connection

    It is recommended to install a draft damper in the chimney The draft damper is field supplied. Optional, the Viessmann supplied draft damper can be installed in the flue gas pipe of the biomass boiler The draft damper should be installed in the flue gas pipe (not included) as close as possible to the chimney not closer than 39e in.

  • Page 21: Flue Gas Cyclone

    Mechanical Vitoflex 300-RF Technical Data Flue Gas Cyclone The flue gas cyclone minimizes dust emissions and is Supplied with: designed as a multi cyclone with axial function. The 1 flue gas cyclone ■ de-duster is fully insulated and has three covers for 1 ash container 24 USG (90 L) ■...

  • Page 22: Metal Mesh Filter

    Mechanical Vitoflex 300-RF Technical Data Metal Mesh Filter The metal mesh filter removes dust and fine dust from the Supplied with: flue gas. It is characterized by a particularly high degree - Two-part, insulated filter casing with: of separation. This ensures a fine dust content of less...
  • Page 23 Mechanical Vitoflex 300-RF Technical Data Metal Mesh Filter (continued) Legend A Clean gas collector B Crude gas distributor (connection possible on both sides) C Recirculation gas connection D Clean gas to chimney E Crude gas from boiler (connection possible on both sides)

  • Page 24: Safety Devices

    K Pressure relief valve, 30 psi or 60 psi See section piping and installation of safety devices 3 in. boiler flange for Vitoflex 300-RF 150-300, 4 in. boiler flange for Vitoflex 300-RF 400-540 Note: All fittings shown and sensors indicated are factory supplied.

  • Page 25: Piping And Installation Of Safety Devices

    Mechanical Vitoflex 300-RF Technical Data Piping and Installation of Safety Devices System fill Drain inspection port System fill Safety heat exchanger top view 3-way mixing valve System return line Blocked 2 heat exchanger port loops for Bypass line Vitoflex 300-RF 400/540...
  • Page 26 122°-248°F (50°-120°C), (safety heat exchanger loop built into the boiler). The Vitoflex 300-RF 150 to Vitoflex 300-RF 300 have one safety heat exchanger loop and require one thermal safety flush valve. The Vitoflex 300-RF 400 and Vitoflex 300-RF 540, have two safety heat exchanger loops and require one thermal safety flush valve.

  • Page 27: Fire Protection

    A level monitor must be installed to prevent overfilling of the combustion chamber. The Vitoflex 300-RF If there is a shortage of water, the Vitoflex 300-RF Rotating Combustion System has a light barrier to Rotating Combustion System will switch off monitor the embers.
  • Page 28 Fire protection for fuel storage space unit and the boiler. The rotary valve is suited to reduce Viessmann does not provide fire protection for the fuel pressure and at the same time is considered a suitable storage space.

  • Page 29: Fire Extinguishing System

    Mechanical Vitoflex 300-RF Technical Data Fire Extinguishing System The fire extinguishing system functions independent from Fire extinguishing system for the conveyor auger the electrical power and is flooding the material which is Note: The fire extinguishing system for the conveyor still remaining in the in-feed auger in case of a back-burn.
  • Page 30 Electrical Vitoflex 300-RF Technical Data Ecocontrol Standard delivery Controller for the wood combustion system incl. activation Control panel, supplied separately of equipment for fuel charging according to the articles listed – Powder-coated surface separately; – Feed 208/3/60 Hz, control voltage 230 V or 24 V The heating output is modulated to match the heat –...
  • Page 31 Delivery and/or installation of safety end switch for the external conveyor drive Triggering System for external drive Note: Only for Vitoflex 300-RF. Starttec is built into the Function: control cabinet for the boiler plant. Starttec, motor soft start for optimized connection of an external conveyor drive or rotary valve without reversal.
  • Page 32 Function: of the boiler pump to higher-level control. Output of all relevant operational data and error reports for the Vitoflex 300-RF Boiler Plant via MOD-BUS in the form of Supplied with: an ASCII-data record via serial interface to higher-level control Floating output (operational message) equipment of the customer’s.
  • Page 33 (internal and/or external) for visualisation, remote maintenance and operating data archiving of the Temperature sensor for heating circuit Vitoflex 300-RF boiler system. Hardware and software are Contact temperature sensor Pt1000 integrated into the Ecocontrol control unit. All adjustable parameters can be changed from the IT workstation.
  • Page 34 Such systems without oxygen diffusion barrier must have the tubing separated from the boiler with a heat exchanger. Viessmann always recommends the use of underfloor plastic tubing with an oxygen diffusion barrier.
  • Page 35 Vitoflex 300-RF Technical Data...
  • Page 36 Vitoflex 300-RF Technical Data...

This manual is also suitable for:

Vitoflex 300-rf 150Vitoflex 300-rf 220Vitoflex 300-rf 300Vitoflex 300-rf 400Vitoflex 300-rf 540

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