Weil-McLain ECO 70, ECO 110, ECO 155 User Guide
User’s
Information Manual
TM
Wall Mount
Gas-Fired Water Boilers
70/110/155
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 vapors and liquids in the vicinity of this or any other appliance.
— WHAT TO DO IF YOU SMELL GAS —
• Donottrytolightanyappliance.
• Donottouchanyelectricalswitch;donotuseanytelephoneinyourbuilding.
• Immediatelycallyourgassupplierfromaneighbor’stelephone.Followthegassupplier’sinstructions.
• Ifyoucannotreachyourgassupplier,calltheredepartment.
Installation & service must be performed by a qualified installer, service technician or the gas supplier.
Part number 550-142-123/0513
TM
gas-fired water boiler — User’s information Manual
Please read this page first
To . . . Read and use . . . Page
Learn
precautions
Locate boiler
components
Prevent air
contamination
Maintain
boiler
Start — or —
Shutdown
boiler
Understand
control
display
See Hazard Definitions, below
See illustration at right
Laundry room or pool — make sure
boiler air is piped to boiler per manual.
Read list of air contaminants you must
avoid. Have boiler air re-piped to
another location if you can’t avoid.
Set up a plan for maintaining the
boiler using the schedule included in
this manual.
Schedule an annual start-up by a
qualified service technician before
every heating season.
Follow the Operating instruction
sheet details to start or shutdown your
boiler.
This page shows display screen
modes and menu access information.
This page shows how to access the
USER MENU to set date and time
and reset faults if the boiler enters
LOCKOUT.
3
2
4
5
9
10
11
ECO Boiler components
Pressure/temperature
gauge
Control display
and buttons
Relief valve
Piping to system
Piping from system
Hazard definitions
The following defined terms are used throughout this manual to
bring attention to the presence of hazards of various risk levels or
to important information concerning the life of the product.
Indicates presence of hazards that will cause severe
personal injury, death or substantial property damage.
Indicates presence of hazards that can cause severe
personal injury, death or substantial property damage.
Indicates presence of hazards that will or can cause
minor personal injury or property damage.
Indicates special instructions on installation, operation
or maintenance that are important but not related to
personal injury or property damage.
2
Condensate
MANUAL GAS VALVE
Relief valve drain line (must be run to safe
drainage location — must be installed by qualified
technician, per boiler manual)
trap and drain line
(drain line must be
installed by quali-
fied technician, per
boiler manual)
Part number 550-142-123/0513
TM
gas-fired water boiler — User’s information Manual
STOP!! — Read before proceeding
Have this boiler serviced/
inspected by a qualified
service technician, at least
annually.
Failure to comply with the above
could result in severe personal
injury, death or substantial property damage.
When calling or writing about the
boiler— Please have the boiler
model number from the boiler
rating label and the CP number
from the boiler cabinet.
Failure to adhere to the guidelines on this page can result in severe personal
injury, death or substantial property damage.
• Should overheating occur or gas supply fail
• Do not use this boiler if any part has been
Boiler service and maintenance —
• To avoidelectric shock, disconnect electrical
supply before performing maintenance.
• Toavoidsevereburns,allow boiler to cool before
performing maintenance.
• You mustmaintain the boiler as outlined in the
manual and have the boiler started up and ser-
viced at least annually by a qualified service technician to ensure boiler/system reliability.
to shut off, DO NOT turn off or disconnect electrical
supply to circulator. Instead, shut off the gas supply at
a location external to the appliance.
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 that has been
under water.
Carbon monoxide detector —
• A carbon monoxide detector that is wired on the
same electrical circuit as the boiler is strongly recommended.
Boiler water —
• Do not use petroleum-based cleaning or sealing
compounds in boiler system. Gaskets and seals in the
system may be damaged. This can result in substantial
property damage.
Boiler operation —
• Do not block flow of combustion or ventilation air to
boiler. This boiler is equipped with a control which
will automatically shut down the boiler should air or
vent be blocked. If vent or air blockage is easily accessible and removable, remove it. The boiler should
attempt to restart within an hour. If blockage is not
obvious or cannot be removed, have the boiler and
system checked by a qualified service technician.
Combustion air —
• DO NOT obstruct the combustion air intake or
expose the air intake to corrosive chemicals
(see next page).
Part number 550-142-123/0513
• Leaks in boiler or piping must be repaired
at once to prevent make-up water. Use this
boiler ONLY in a closed-loop system. Con-
tinual fresh make-up water will reduce boiler life.
Mineral buildup in heat exchangers reduces heat
transfer, overheats the materials, and causes failure.
Addition of oxygen carried in by make-up water can
cause internal corrosion.
• Do not add cold water to hot boiler. Thermal
shock can cause heat exchanger to crack.
Freeze protection fluids —
• NEVER use automotive or standard glycol antifreeze.
Use only freeze-protection fluids made for hydronic
systems. Follow all guidelines given by the antifreeze
manufacturer. Thoroughly clean and flush any replacement boiler system that has used glycol before
installing the new boiler.
3
TM
gas-fired water boiler — User’s information Manual
Prevent combustion air contamination
Air contamination
Common household and hobby products often contain
fluorine or chlorine compounds. When these chemicals
pass through the boiler, they can form strong acids in
the vent system or boiler. The acid can eat through
the vent or boiler wall, causing serious damage and
presenting a possible threat of flue gas spillage into
the building.
Please read the information on this page.
If the boiler combustion air inlet is
located in any area likely to cause
contamination, or if products which
would contaminate the air cannot be
removed, you must have the combustion air and vent re-piped and
terminated to another location
Contaminated combustion air will dam-
age the boiler, resulting in possible severe
personal injury, death or substantial
property damage.
.
Combustion air contamination:
Ensure that the combustion air will not contain any of
the contaminants in Figure 1
Combustion air supply openings or intake terminations
must NOT be near a swimming pool, for example.
Avoid areas subject to exhaust fumes from laundry facilities.
These areas will always contain contaminants.
Figure 1
Products to avoid
Corrosive contaminants and sources
Spray cans containing chloro/fluorocarbons
Permanent wave solutions
Chlorinated waxes/cleaners
Chlorine-based swimming pool chemicals
Calcium chloride used for thawing
Sodium chloride used for water softening
Refrigerant leaks
.
Do not operate the ECO boiler if its
combustion air inlet is located in
a laundry room or pool facility
, for
example. These areas will always contain
hazardous contaminants.
Paint or varnish removers
Hydrochloric acid/muriatic acid
Cements and glues
Antistatic fabric softeners used in clothes dryers
Chlorine-type bleaches, detergents, and cleaning solvents found in
household laundry rooms
Adhesives used to fasten building products and other similar products
Excessive dust and dirt
Areas likely to have contaminants
Dry cleaning/laundry areas and establishments
Swimming pools
Metal fabrication plants
Beauty shops
Refrigeration repair shops
Photo processing plants
Auto body shops
Plastic manufacturing plants
Furniture refinishing areas and establishments
New building construction
4
Part number 550-142-123/0513
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