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5603 884 - 04
Vitoflex 300-UF Service & Maintenance
IMPORTANT
The local building codes and regulations must be followed
by the heating contractor.
IMPORTANT
Please refer to the Installation and Operating
Instructions for installation, commissioning
and technical specification information. The
Installation and Operating Instructions contain
the necessary safety and national/local code
requirements which, if not followed exactly,
may lead to property damage, personal injuries
and/or death.
Important Information
Safety instructions
When carrying out work on the heating system, such as
cleaning and maintenance, wear appropriate protective
equipment when required.
There is a danger of getting injured through: burning,
knocking against corners and edges, crushing in moving
parts and noise.
Power supply: 120V or 240V/1/ and 208V/3/ 60Hz
In case of an emergency, the Vitoflex 300-UF can be
disconnected from the electrical power supply at all the
leads by the main switch on the control cabinet.
CAUTION
FIRE HAZARD:
The boiler must NEVER be operated with the doors open!
Any 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 controllability of the boiler,
it is important that no unwanted air can enter unchecked
through leaks.
The doors and lids have to shut tight - any damaged
seals must be replaced immediately. Tighten the retaining
screws and handles well.
Operation, cleaning and maintenance: bear in mind that
even the best product can only fulfill its functions well,
doing so for a long time and free of malfunctions, if
operated and maintained properly.
Compliance with the “Cleaning” section is mandatory!
Safety Instructions
IMPORTANT
Doors: for safety keep firing and ashpit doors tightly closed
Safety
If you notice fire coming from the appliance, call the fire
department immediately!
DO NOT attempt to extinguish the fire unless qualified to
do so.
WARNING
Fire causes a risk of burns and explosion!
Shut down the boiler
Close fuel shut-off valves
Use a tested fire extinguisher, class ABC.
