John Wood Atmospheric Vent Light-Duty - Manual (Page 2)

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I) INTRODUCTION
We thank you for choosing a GSW or John Wood Water Heater.
Your satisfaction with this product is very important to us.
The design of this gas-fired water heater has been approved to
provide potable hot water or when combined with a suitably-sized
fan coil, baseboard heater, etc., to provide both space heating
and domestic hot water.
Important Consumer Notice
These instructions have been written for the proper installation,
safe operation and maintenance of this water heater.
It is your responsibility to ensure that your water heater is properly
installed and cared for.
FAILURE TO FOLLOW THE
INSTRUCTIONS IN THIS MANUAL MAY RESULT IN
SERIOUS BODILY INJURY AND /OR PROPERTY
DAMAGE. THOROUGHLY READ ALL INSTRUCTIONS
before you attempt to install or operate this heater.
Installation and service require trade knowledge in the area of
plumbing, venting, air supply and gas supply. If you lack these
skills or do not understand these instructions, enlist the help of a
qualified professional.
GSW Water Heating Company, the manufacturer of this water
heater, cannot be held liable for those damages caused by
improper installation, sizing or failure to comply with these
instructions.
Protect your warranty:
Regularly
maintain your water heater and venting system as detailed in the
service and maintenance section of this manual.
Installation Code Requirements
In addition to the installation instructions found in this manual, the
heater shall be installed in accordance with local codes or , in the
absence of local codes, the latest edition of CAN/CGA B149.1
installation code in Canada / National Fuel Code ANSI Z223•1
(NFPA 54) in the USA.
Authorities having jurisdiction shall be consulted before
installations are made.
Impor tant:
All supply equipment, installation,
approvals, permits, inspections, etc. are the responsibility
of the owner of this water heater. Consult your local
authorities for regulations specific to your area.
Relief Valves (T&P)
All heaters must be installed with a proper temperature and
pressure relief valve. These valves must be certified as meeting
the requirements for Relief Valves and Automatic Gas Shut-Off
Devices for Hot Water Supply Systems, ANSI Z21•22 in the
USA / CAN1-4.4, Temperature, Pressure, Temperature and
Pressure Relief Valves and Vacuum Relief valves in Canada.
Backflow Prevention
Certain jurisdictions may require the installation of a backflow
prevention device (e.g., check valve) in the water supply line.
Such a device will require the use of a system expansion tank of
adequate size to control the thermal expansion generated during
the heating cycle. Consult your water supplier or local plumbing
authority.
Important: The supply water meter may have a built-in check
valve device. Contact your local water authority.
Safety Warnings
• Water Heaters are heat-producing appliances. To avoid damage
or injury, no materials shall be stored against the heater and
provision shall be made to prevent unauthorized contact (e.g.
children).
• Hot water produced by this appliance can cause severe burns
due to scalding. The hazard is increased for young children, the
aged, or the disabled where water temperatures exceed
120 O F(49 O C).
• Use anti-scald valves, set to 120 O F(49 O C), in the hot water
system to reduce the risk of scalding at points of use such as
lavatories, sinks and bathing facilities. Such precautions must
be followed when this heater is operated in combination with
dishwashing or space heating applications.
• As with all fuel burning equipment, this heater requires an
adequate supply of air for combustion and ventilation. An
insufficient air supply can result in poor combustion or the re-
circulation of the exhaust flue gases. Such a condition can
cause sooting or present a fire hazard, which may result in
serious bodily harm or death from asphyxiation.
MAKE SURE THE FLOW OF COMBUSTION AND
VENTILATION AIR IS NOT RESTRICTED.
•
Important:
There is a risk in using fuel-burning appliances
such as water heaters. Areas that may not be suitable for water
heater installation include those where flammable liquids,
gasoline, solvents, adhesives, etc., or engine-driven equipment
or vehicles are stored, operated or repaired. Due to the nature
of air movement, flammable vapors can be carried some
distance from the point of storage. The gas-fired water heater
pilot or main burner flame can ignite these vapors causing a
flashback, fire or explosion which may result in serious personal
injury or death, as well as severe property damage.
FOR YOUR SAFETY, DO NOT STORE OR USE
GASOLINE OR OTHER FLAMMABLE,
COMBUSTIBLE OR CORROSIVE VAPORS OR
LIQUIDS IN THE VICINITY OF THIS HEATER OR
ANY OTHER APPLIANCE.
• If installation in a garage or shed is the only option, it is required
that the water heater be elevated a minimum of 18”(45 cm)
above the floor level. This may reduce, BUT NOT
ELIMINATE , the risk of flammable vapors being ignited.
Ensure supports are capable of supporting this heater filled with
water and support piping. Such installations must be protected
from impact or physical damage caused from moving equipment
or vehicles. CHECK LOCAL CODES!
• Exposure to air borne chemicals can cause severe corrosion to
the water heater and damage to the venting parts. Air containing
vapors from cleaning solvents, pool chemicals, refrigerator or air
conditioning refridgerants, laundry detergents or bleaches,
waxes, spray can propellants, dry cleaning, photo processing
liquids, calcium and sodium chloride (softener salt) or other
process chemicals are typical of compounds which are
potentially corrosive. Products of this type should not be stored
near the heater. Air containing these chemicals should not be
used as supply to the heater. If necessary, uncontaminated air
shall be obtained from remote or outside sources.
EXPOSURE TO WATER
IMPORTANT: Should the water heater be subjected to
flooding, freezing, fire, or other unusual condition, turn off gas
at the manual gas shut-off valve and water at the inlet valve to
the heater. Do not put the heater in operation until it has been
thoroughly checked by a qualified gas technician.
THESE CONDITIONS CAN RESULT IN UNSEEN
INTERNAL DAMAGE and are not subject to warranty coverage.