Venting/Air Piping - General - Weil-McLain Eco Tec 2 Series Manual

ECO ® Tec series 2 gas-fired water boiler – boiler manual
Venting/air piping — general
Any improper operation of a common venting system should be
corrected so the installation conforms with the National Fuel Gas
Code, ANSI Z223.1/NFPA 54 – latest edition, and/or the Natural Gas
and Propane Installation Code, CAN/CSA B149.1. When resizing any
portion of a common venting system, the common venting system
should be resized to approach the minimum size as determined using
the appropriate tables in Chapter 13 of the National Fuel Gas Code,
ANSI Z223.1/NFPA 54 – latest edition, and/or the Natural Gas and
Propane Installation Code, CAN/CSA B149.1.
Do not install the ECO Tec boiler into a common
vent with any other appliance. This will cause flue
gas spillage or appliance malfunction, resulting in
possible severe personal injury, death or substantial
property damage.
Existing common vent systems may be too large for
the appliances remaining connected after the existing
boiler is removed.
Failure to follow all instructions can result in flue gas
spillage and carbon monoxide emissions, causing
severe personal injury or death.
Use ONLY the venting materials and venting
manufacturers' components and systems approved by
WM Technologies. Follow all instructions provided
by the venting component and system manufacturer.
Failure to do so can cause flue gas spillage and carbon
monoxide emissions, resulting in severe personal
injury or death.
When removing a boiler from an existing
common vent system
The ECO Tec boiler cannot be common vented with any
other appliance. When an existing boiler is replaced with an
Tec
boiler, the ECO Tec boiler CANNOT use the existing common
vent. The boiler requires its own vent and air piping, as specified
in this manual. This may cause a problem for the appliances that
remain on the old common vent, because the vent may be too large.
The following test is intended to check for proper operation of the
appliances remaining on the old common vent system.
Vent system verification
Perform the test sequence below for each appliance remaining on the
original common vent system. Operate each appliance individually,
with other appliances turned off. This procedure will test whether the
common vent system can properly vent each appliance.
Existing vent test procedure
(The following is intended to test whether the appliances remaining
on an existing vent system will operate satisfactorily.)
1. Seal any unused openings in the common venting system.
2. Visually inspect the venting system for proper size and horizontal
pitch and determine there is no blockage or restriction, leakage,
corrosion or other deficiencies which could cause an unsafe
condition.
3. Test vent system — Insofar as is practical, close all building
doors and windows and all doors between the space in which the
appliances remaining connected to the common venting system
are located and other spaces of the building. Turn on clothes dryers
and any appliance not connected to the common venting system.
Turn on any exhaust fans, such as range hoods and bathroom
exhausts, so they will operate at maximum speed. Do not operate
a summer exhaust fan. Close fireplace dampers.
20
4. Place in operation the appliance being inspected. Follow
the lighting instructions. Adjust thermostat so appliance
will operate continuously.
5. Test for spillage at draft hood relief opening after 5 minutes
of main burner operation. Use the flame of a match or
candle, or smoke from a cigarette, cigar, or pipe.
6. After it has been determined that each appliance remaining
connected to the common venting system properly vents
when tested as outlined herein, return doors, windows,
exhaust fans, fireplace dampers, and any other gas-burning
appliance to their previous conditions of use.
Figure 25 Corrosive contaminants and sources
Products to avoid
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
Paint or varnish removers
Hydrochloric acid/muriatic acid
Cements and glues
ECO 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
Remodeling areas
Garages with workshops
Part number 550-100-270/0122