Viessmann Vitogas 050 ECD Series Guide

User’s Information Manual
for Vitogas 050, ECD Series
Gas-fired, atmospheric cast iron boiler
65 to 200 MBH / 19 to 59 kW
IMPORTANT: READ AND SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE
Warning:
Should overheating occur or the gas supply fail to shut
off, do not disconnect the electrical supply to the pump.
Instead, shut off the gas supply at a location external to
the appliance.
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.
Warning: 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.
Do not store or use gasoline or other flammable liquids
in the vicinity of this or any other appliance.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliances.
• Do not touch any electrical switches, do not use any
phone in your building.
• Immediately call your gas supplier from a neighbor’s
phone. Follow the gas supplier’s instructions.
• If you cannot reach your gas supplier, call the fire
department.
Installation and service must be performed by a
qualified installer, service agency or the gas supplier.
5167 447 08/2003

ATTENTION
Before operating this boiler/burner unit, make sure you fully
understand its method of operation. Your heating contractor
should always perform the initial start-up, explain the system,
and demonstrate a proper emergency shut-down procedure of
the heating boiler to the user(s) and/or owner.
Excerpt from our warranty terms
Boiler is not covered under any warranty terms for damages
resulting from the following:
Improper application and installation, installation by
unqualified personnel, ignorance of instructions, improper
service and maintenance work, incorrect replacement
component selection or application, incorrect field wiring.
Full warranty applies only when boiler is installed and
operated according to instructions and used only with the
proper gas and the applicable gas pressures.
System start-up procedure
If the system was shut down for an extended period of time,
have a qualified service technician restart and recondition
your system.
In order to turn off all electrical power and boiler operating
controls, observe the following procedure:
1. Set the thermostat to lowest setting.
2. Turn off all electrical power to boiler.
24V room
thermostat
Thermometer (boiler water temperature)
Manual reset aquastat (248°F/120°C)
(Remove cover to access
reset button)
120V
field installed
on/off switch
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.
Note:
Read and save the Installation/Service Manual which was shipped with your Vitogas 050, ECD Series boiler. The
Installation/Service Manual is required by the service contractor during annual servicing of the boiler.
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3
A. This appliance is equipped with an ignition
device which automatically lights the pilot.
Do not try to light the pilot by hand.
B. BEFORE OPERATING smell all around the
appliance area for gas. Be sure to smell
next to the floor because some gas is
heavier than air and will settle on the floor.
WHAT TO DO IF YOU SMELL GAS
●Do not try to light any appliance.
●Do not touch any electric switch; do not
use any phone in your building.
●Immediately call your gas supplier from a
neighbor’s phone. Follow the gas
supplier’s instructions.
1. STOP! Read the safety information above
on this label.
2. Set the thermostat to the lowest setting.
3. Turn off all electric power to the appliance.
4. This appliance is equipped with an ignition
device which automatically lights the pilot.
Do not try to light the pilot by hand.
1. Set the thermostat to lowest setting.
2. Turn off all electric power to the appliance if
service is to be performed.
3. Remove control access panel.
●If you cannot reach your gas supplier, call
the fire department.
C. Use only your hand to push in or turn the
gas control knob. Never use tools. If the
knob will not push in or turn by hand, don’t
try to repair it; call a qualified service
technician. Force or attempted repair may
result in fire or explosion.
D. Do not use this appliance if any part has
been under water. Immediately call a
qualified service technician to inspect the
appliance and to replace any part of the
control system and any gas control which
has been under water.
5. Remove control access panel.
6. Turn gas knob clockwise to “OFF”.
7. Wait five (5) minutes to clear out any gas.
Then smell for gas, including near the floor.
If you smell gas, STOP! Follow “B”in the
safety information above on this label. If
you don’t smell gas, go to the next step.
8. Turn gas control knob counterclockwise
to “ON”.
9. Replace control access panel.
10. Turn on all electrical power to the
appliance.
11. Set thermostat to desired setting.
12. If the appliance will not operate, follow the
instructions “To Turn Off Gas To Appliance”
and call your service technician or gas
supplier.
4. Turn gas control knob clockwise to
“OFF”. Do not force.
5. Replace control access panel.
FOR YOUR SAFETY READ BEFORE OPERATING
OPERATING INSTRUCTIONS
TO TURN OFF GAS TO APPLIANCE
WARNING: If you do not follow these instructions exactly, a fire or explosion may
result causing property damage, personal injury or loss of life.
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FOLLOW THESE INSTRUCTIONS
WHEN BOILER IS EQUIPPED WITH
INTERMITTENT PILOT (SPARK TO PILOT)
Position
Indicator
Gas
Control
Knob

Maintenance
Inspections during heating season
ATTENTION OWNER:
You have purchased a heating boiler of top quality –
Congratulations!
In order to ensure that the boiler continues to operate at its
peak performance, safety and efficiency, observe and follow
the recommendations for maintenance, inspection and service
routine. Early detection of problems and their immediate repair
will usually result in less damage, lower repair cost and
continued safe operation.
Frequently:
– 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 well vent terminals (if so equipped). Check for debris
which could obstruct the flow of flue gases.
– Ensure that nothing is obstructing the flow of combustion
and ventilation air and no chemicals, garbage, gasoline,
combustible materials, flammable vapors and liquids are
stored (not even temporarily) in the vicinity of the boiler.
A service/inspection of the boiler and the system is
recommended once a year. Maintenance, service and
cleaning is specified in the Installation/Service Manual.
Before heating season starts, both the boiler and burner
should be serviced by a qualified service agency. Service
contracts may be established through gas suppliers or other
licensed contractors in your area.
All ECD boilers are equipped with two manual reset safety
switches to provide safety shut-off means in the case of
1) flame roll-out caused by a completely blocked flueway or
plugged heat exchanger and
2) complete blockage of the vent or chimney caused by
debris, animals, or accidental coverage of the chimney rain
cap by building materials, ice, or other material.
The blocked vent switch is located in the draft hood assembly
at the front of the boiler. The flame roll-out switch is located
near the igniter close to the burner at the front of the unit.
In the event that either the flame roll-out or the blocked vent
switch activates and shuts down the boiler:
1. Do not attempt to reset the control. Call a qualified
service agency to locate the source of the problem. To
determine which device has activated, press the reset
button on the manual reset devices one at a time and
observe which one causes the ignition system to
operate.
2. If the blocked vent switch has activated, the service
technician must inspect the entire vent system. If the
flame roll-out switch has been activated then the
service technician must inspect the flueways in the
boiler and clean if necessary. Details for cleaning the
boiler flueways are to be found in the Installation/Service
Manual for the Vitogas 050, ECD boiler.
Boiler shown with front access panel removed.
Blocked vent
switch
Flame roll-out
switch
Viessmann Manufacturing Company (U.S.) Inc. Viessmann Manufacturing Company Inc.
45 Access Road 750 McMurray Road
Warwick, RI •02886 •U.S.A. Waterloo, Ontario •N2V 2G5 •Canada
Tel.: [phone] Fax: [phone] Tel. [phone] •Fax [phone]
www.viessmann-us.com •[email protected] www.viessmann.ca •[email protected]
5167 447 Technical information subject to change without notice. Printed on environmentally friendly
(recycled and recyclable) paper.