Viessmann Vitoflex 300-UF 1250 Service And Maintenance Instructions Download Page 1

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Service and

Maintenance Instructions

for use by engineers and heating contractors

5603 884 - 04 03/2017

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Vitoflex 300-UF 390, 530, 720, 950 AND 1250

Wood-fired Boiler

Output range: UF 390, 334 to 1331 kW

UF 530, 450 to 1808 kW

UF 720, 614 to 2457 kW

UF 950, 812 to 3242 kW

UF 1250, 1065 to 4265 kW

Vitoflex 300-UF

Product may not be exactly as shown

If the information in this manual is not

followed exactly, a fire or explosion

may result causing property damage,

personal injury or loss of life.

Improper installation, adjustment and/or

operation could cause carbon monoxide

poisoning resulting in injury or loss of life.

This product must be installed and serviced

by a professional service technician who is

experienced and qualified in hot water boiler

installation and wood fuel combustion.

Do not store or use gasoline or other

flammable fluids in the vicinity of this or

any other appliance.

WHAT TO DO IF YOU SMELL FLUE GAS



Deactivate heating equipment



Open windows and doors.



Inform your heating contractor

Please file in Service Binder

WARNING

IMPORTANT

Summary of Contents for Vitoflex 300-UF 1250

Page 1: ...ire or explosion may result causing property damage personal injury or loss of life Improper installation adjustment and or operation could cause carbon monoxide poisoning resulting in injury or loss of life This product must be installed and serviced by a professional service technician who is experienced and qualified in hot water boiler installation and wood fuel combustion Do not store or use ...

Page 2: ...ant Regulatory and Installation Requirements Contaminated air Air contaminated by chemicals can cause by products in the combustion process which are poisonous to inhabitants and destructive to Viessmann equipment For a listing of chemicals which cannot be stored in or near the boiler room please see subsection entitled Mechanical Room Advice to owner Once the installation work is complete the hea...

Page 3: ...rmation IMPORTANT Indicates an imminently hazardous situation which if not avoided could result in death serious injury or substantial product property damage Indicates an imminently hazardous situation which if not avoided may result in minor injury or product property damage Helpful hints for installation operation or maintenance which pertain to the product This symbol indicates to note additio...

Page 4: ...ous Material 11 Mechanical Room 12 Combustion Air Supply 13 Components of the Biomass Boiler 14 Cleaning 15 Boiler 15 Heat exchanger tube displacement rods 16 Installing the displacement rods 16 Removing the displacement rods 16 Flue gas cyclone optional 17 Pneumatic cleaning system optional 17 Flue gas re circulation system optional 18 Feed Systems 19 Shutdown 20 Boiler 20 Extraction and conveyan...

Page 5: ...CSA B365 10 Installation Code for Solid Fuel Burning Appliances and Equipment ASME section IV boilers and pressure vessels Viessmann solid fuel boiler can only be installed and serviced by qualified trained personnel Steel wood fired hot water heating boiler For operation primarily with modulating boiler water temperatures in closed loop forced circulation hot water heating systems Under certain c...

Page 6: ...e low water cutoffs flow switches if used staging controls pumps motorized valves air vents thermostats etc Leave all literature at the installation site and advise the system operator ultimate owner where the literature can be found Contact Viessmann for additional copies This product comes with several safety instruction labels attached Do not remove Contact Viessmann immediately if replacement ...

Page 7: ...d environmentally friendly operation The build up of soot on the heat exchanger raises the flue gas temperature and reduces efficiency IMPORTANT Keep boiler and boiler room clear and free of combustible materials gasoline and other flammable vapors and liquids Do not obstruct the flow of combustion and ventilation air All inspection maintenance and service must be performed by a qualified heating ...

Page 8: ... burning bits that escape could start a fire RISK OF INJURY If the doors are open during operation sparks or flames could leap out Equipment for dissipating excess heat a competent specialist should examine the operational reliability of the thermal safety flush valve annually The safety heat exchanger must not by any means be used as an operational heat exchanger Seals for the functioning and con...

Page 9: ...Check pressure gage for correct system water pressure Check for water on the floor from the discharge pipe of the pressure relief valve or any other pipe pipe joint valve or air vent Check for moisture water or appearance of rust on the flue gas pipes their joints as well as vent dampers or side wall vent terminals if so equipped Ensure that nothing is obstructing the flow of combustion and ventil...

Page 10: ...ains off for an extended period of time during cold weather water pipes may freeze and burst resulting in extensive water damage and conditions in which mold could grow Certain molds are known to cause respiratory problems as well as to pose other serious health risks In case of water damage immediate measures should be taken to dry out affected areas as quickly as possible to prevent mold from de...

Page 11: ...d warm water after handling Hazardous Material Safety Suppliers of ceramic fiber products recommend the following first aid measures Respiratory tract nose and throat irritation If respiratory tract irritation develops move the person to a dust free location Eye irritation If eyes become irritated flush immediately with large amounts of lukewarm water for at least 15 minutes Eyelids should be held...

Page 12: ...astic manufacturing plants Photo processing plants Beauty salons Products containing contaminants Chlorine type bleaches detergents and cleaning solvents found in household laundry rooms Paint and varnish removers Hydrochloric acid muriatic acid Chlorine based swimming pool chemicals Spray cans containing chlorofluorocarbons Chlorinated waxes and cleaners Cements and glues Refrigerant leaks Calciu...

Page 13: ...erly observed and boiler damage results any warranty on the complete boiler and related components will be null and void General This equipment requires fresh air for safe operation The boiler location must never be under negative pressure Exhaust fans attic fans or dryer fans may cause air to be exhausted at a rate higher than air can enter the structure for safe combustion The heating contractor...

Page 14: ... Controlled combustion air supply system 5 Moving grate 6 Drive for automatic de ashing assembly with ash container optional 7 Combustion chamber 8 Combustion chamber door 9 Pneumatic cleaning system optional qP Heat exchanger door qQ Safety heat exchanger for thermal safety flush valve qW Heat exchanger qE Frequency controlled flue gas exhaust blower Maintenance ...

Page 15: ...utely sure to turn OFF main switch Never operate the boiler without the ash bin After each manual cleaning of the heat exchanger Use ash rake to draw ash to the front and remove After each manual cleaning of the heat exchanger Open lid on both sides and remove ash Approx every 300 operating hours Clean the light barriers and inspection windows above the in feed auger and also opposite Remove dust ...

Page 16: ...asily removed Removing the displacement rods RISK OF INJURY Shut the system off before starting any cleaning Be absolutely sure to wear protective gloves protective eyewear if required and use the cleaning tools that come with the system danger of blow ups burns and getting crushed CAUTION Heat exchanger tube displacement rods The displacement rods improve the heat transmission in the heat exchang...

Page 17: ...cyclone minimizes dust emissions and is designed as a multi cyclone with an axial function The cyclone is completely insulated and provided with a total of three lids for cleaning The untreated exhaust flue gas chamber is cleaned via the cleaning lid on the side The clean exhaust flue gas chamber is cleaned via the top or rear cleaning lid unused blower connection The ash container which is provid...

Page 18: ... the flaps are closed no gas may escape Approx every 4000 operating hours Clean the secondary air blower Approx every 1000 operating hours Clean the re circulation flue gas exhaust blower After around 1800 operating hours annually Checks for leaks must be repeated each year so that any possible wear on the seals particularly in the area of the maintenance covers may be recognized and corrected in ...

Page 19: ...tion system AP APS Lubricate the gasket between the extraction casing and the geared motor and universal joint for the auger If a fuel hopper is installed do not alter equipment in any way May be connected to an existing boiler or solar system RISK OF INJURY Shut the system off before starting any cleaning Be absolutely sure to wear protective gloves protective eyewear if required and use the clea...

Page 20: ...tend the service life of the backup battery Replacing the backup battery The backup battery is built in beneath the removable lid on the control module type Panasonic Lithium BR2330 It is for backing up the time date and settings Note The battery needs replacing every five years DO NOT disconnect the main power or turn off the main switch while changing the battery Ash disposal Ashes should be sto...

Page 21: ...mbly N70 on the fixed high limit for the combustion chamber take off the protective cap and press the reset button this is only possible at boiler temperatures less than 158 F 70 C Acknowledge in Screen 2 Malfunction low pressure measured in combustion chamber Negative pressure gauge B70 Flue gas exhaust blower is broken Boiler is very soiled Ash container has been removed or is mounted incorrectl...

Page 22: ...efective Take off and clean inspection windows on both sides remove dust and ash deposits from the openings see Cleaning section Acknowledge in Screen 2 Malfunction silo door or maintenance cover open Limit switch on the silo door or on a maintenance lid S2 S The silo door or one of the maintenance lids is open Close silo door or maintenance lid Acknowledge in Screen 2 Malfunction hydraulic drive ...

Page 23: ... defective Call a certified electrician Burner sensor defective Temperature sensor in the boiler supply B20 Damaged sensor connecting line Sensor is defective Call a certified electrician Sensor for burner return flow defective Temperature sensor in the boiler return B20 1 Damaged sensor connecting line Sensor is defective Call a certified electrician Malfunction ash bin for combustion chamber rem...

Page 24: ...5603 884 04 Technical information subject to change without notice Printed on environmentally friendly recycled and recyclable paper Vitoflex 300 UF Service Maintenance ...

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