Viessmann Vitogas 050 ECD Series Installation & Service Manual page 2

This "Attention" symbol is located beside all
important safety recommendations. Please follow
the instructions in detail to avoid property damage,
severe personal injury, or loss of life.
Warning:
The installation, adjustment, service, and maintenance
of this boiler must be done by a licensed professional
service technician who is qualified and experienced in
the installation, service, and maintenance of gas-fired
hot water boilers. There are no user serviceable parts on
the boiler, burner, or control. Failure to heed this
warning can cause property damage, severe personal
injury, or loss of life.
Warning:
Improper installation, adjustment, service, or
maintenance can cause flue products to flow into living
space. Flue products contain poisonous carbon
monoxide gas which can cause nausea or asphyxiation
resulting in severe personal injury or loss of life.
Warning:
If flame roll-out or blocked vent switch trips during start-
up or normal operation, it indicates a hazardous
condition to be corrected immediately. Do not attempt to
put boiler in operation. Immediately contact a qualified
service professional to locate source of problem and
correct. Failure to heed this warning could result in
property damage, severe personal injury, or loss of life.
Do not use this boiler if any part has been under water.
Immediately call a qualified service technician to inspect
the boiler and to replace any part of the control system
and any gas control which has been under water.
Do not store chemicals containing chlorine or other
corrosive materials near the boiler, such as bleach,
cleaning solvents, detergents, acids, hair spray, spray
cans, paint thinners, paint, water softener salt,
refrigerants.
Warning:
Installers must follow local regulations with respect to
installation of carbon monoxide detectors. Follow
manufacturer's maintenance schedule of boiler.
2
Warning:
Before each heating season begins, have the following
service and maintenance done by a professional service
technician:
1) Boiler heat exchanger inspected and cleaned.
2) Vent system inspected for deterioration, leaks,
corrosion, proper draft, and proper operation. Check
vent system for compliance with local and national
code requirements. Repair or replace as required.
3) Burner inspected and if necessary cleaned to
ensure proper combustion and operation. Check for
adequate supply of fresh outside combustion and
ventilation air.
Neglecting to perform necessary maintenance can cause
unsafe operation.
Warning:
Never operate the boiler without an installed venting
system which safely vents all products of combustion to
the outdoors. The vent system must comply with all
applicable local and/or national codes.
Improper, incomplete, obstructed, or deteriorated vent
systems can present a serious risk of flue gases leaking
into living space which could cause carbon monoxide
poisoning. Failure to heed this warning can cause
severe personal injury or loss of life.
Warning:
Never operate the boiler without an adequate supply of
fresh combustion air. This boiler needs fresh air for safe
operation and must be installed so there are provisions
for adequate combustion and ventilation air. All
combustion and ventilation air must be supplied from
the outside. Failure to heed this warning can cause
severe personal injury or loss of life.
Warning:
Shut off all electrical power and turn off gas or oil supply
to boiler before performing any service or maintenance
on the boiler, burner, or control. Failure to heed this
warning could result in electrical shock, serious
personal injury or loss of life.
Attention:
The preferred and safest location for the ECD Series
boiler is in a dedicated mechanical room with fresh
combustion air intake and ventilation openings made
directly to the outside.