Please Read Before Proceeding - Weil-McLain Series 2 Manual

® S
ERIES

Please read before proceeding

Installer— Read all instructions, including this
manual and all other information shipped with the
boiler, before installing. Perform steps in the order given.
User — This manual is for use only by a qualified
heating installer/service technician. Refer to User's
Information Manual for your reference.
User — 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.
If any part of a boiler, burner or its controls has
been sprayed with or submerged under water,
either partially or fully, DO NOT attempt to
operate the boiler until the boiler has been either
replaced or completely repaired, inspected, and
you are sure that the boiler and all components
are in good condition and fully reliable.
Otherwise, by operating this boiler, you will
cause a fire or explosion hazard, and an electrical
shock hazard, leading to serious injury, death, or
substantial property damage. See the instructions
at right.
Failure to adhere to the guidelines below can result in severe personal injury, death or substantial property damage.
EXPANSION TANK
• Relieve pressure from the system
before isolating the expansion tank.
When servicing boiler —
• To avoid electric shock, disconnect all
electrical supplies to the boiler before
performing maintenance.
• To avoid severe burns, allow boiler to
cool before performing maintenance.
• This boiler contains ceramic fiber
and fiberglass materials. Refer to the
WARNING and instructions on page 89.
Boiler operation —
• Do not block flow of combustion or
ventilation air to boiler.
• Should overheating occur or gas supply
fail 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.
Combustion air —
• DO NOT install combustion air intake
where there is a risk of combustion air
contamination.
Carbon monoxide detector —
• A carbon monoxide detector that is
wired on the same electrical circuit as
the boiler is strongly recommended.
Commonwealth of
Massachusetts
Part number 550-142-190/1218
2
-
G
AS FIRED WATER BOILER
SURGE PROTECTOR —
• Provide surge protection in the boiler
power supply. This will reduce the
possibility of damage to the boiler
control.
Boiler water —
• The heat exchanger is made of
ECO
stainless steel, and requires that system
water chemistry be within the limits in
this manual.
TREATMENT MAY BE NECESSARY
page 79 for details.
• Thoroughly flush the system (
connecting boiler) to remove sediment.
The high-efficiency heat exchanger can
be damaged by build-up or corrosion
due to sediment.
• 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.
• Continual fresh make-up water will
reduce boiler life. Mineral buildup in
eat exchanger reduces heat transfer,
overheats the stainless steel heat
exchanger, and causes failure. Addition
of oxygen carried in by make-up water
can cause internal corrosion. Leaks in
boiler or piping must be repaired at
When the boiler is installed within the Commonwealth of Massachusetts:
• This product must be installed by a licensed plumber or gas fitter.
• If antifreeze is used, a reduced pressure back-flow preventer device shall be used.
• Sidewall vent air installations — see instruction on page 25.
— Boiler Manual
Write in the CP number in the space provided on the
Installation certificate on page 129 if not already shown.
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 jacket.
Consider piping and installation when determining
boiler location.
Any claims for damage or shortage in shipment
must be filed immediately against the transportation
company by the consignee.
— The exposure of boiler components to
Saltwater Damage
saltwater can have both immediate and long-term effects. While
the immediate effects of saltwater damage are similar to those of
freshwater (shorting out of electrical components, washing out
of critical lubricants, etc.), the salt and other contaminants left
behind can lead to longer term issues after the water is gone due to
the conductive and corrosive nature of the salt residue. Therefore,
Weil-McLain equipment contaminated with saltwater or polluted
water will no longer be covered under warranty and should be replaced.
— If any
Electrical Damage
came into contact with water, or was suspected to have come into
contact with water, replace the boiler with a new Weil-McLain boiler.
• Do not add cold water to a hot boiler.
Freeze protection fluids —
• NEVER use automotive or standard
ADDITIONAL CHEMICAL
. See
BEFORE
Residences or building s that are
unattended in severely cold weather,
boiler system components failures, power
outages, or other electrical system failures
could result in frozen plumbing and
water damage in a matter of hours. For
your protection, take preventative actions
such as having a security system installed
that operates during power outages,
senses low temperature, and initiates an
effective action. Consult with your boiler
contractor or a home security agency.
electrical component
once to prevent make-up water. Use this
boiler ONLY in a closed-loop system.
Thermal shock can cause heat exchanger
to crack.
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. Use only the
products listed by Weil-McLain for use
with this boiler. See page 80 for details.
Frozen Water Damage
Hazard
or
wiring
7