John Wood Commercial Storage Tanks 80G - 120G - Manual (Page 2)

CANADIAN INSTALLATIONS
In addition to the installation instructions found in this
manual, the heater shall be installed in accordance with the
latest edition of CSA B149 installation codes and /or any
local codes. These shall be carefully followed in all cases.
Authorities having jurisdiction shall be consulted before
installations are made.
All electrical connections shall be in accordance with the
latest edition of the Canadian Electrical Code CSA C22-1
Part 1.
U.S. INSTALLATIONS
In addition to the installation instructions found in this
manual, the heater shall be installed in accordance with the
latest edition of the National Fuel Code ANSI Z223-1 (NFPA
54) and/ or any local codes. These shall be carefully
followed in all cases. Authorities having jurisdiction shall be
consulted before installations are made.
IMPORTANT:
All supply equipment, installation,
approvals, permits, inspections, etc. are the responsibility of
the owner of this storage tank unit. 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 United States. When in Canada, the Standard
for Temperature, Pressure, Temperature and Pressure
Relief and Vacuum Relief CAN 1-4.4, is required.
BACKFLOW PREVENTION
Certain jurisdictions may require the installation of a
backflow 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).
FOR YOUR SAFETY, DO NOT STORE OR USE
GASOLINE OR OTHER FLAMMABLE, COMBUSTIBLE
OR CORROSIVE VAPOURS OR LIQUIDS IN THE
VICINITY OF THIS HEATER OR ANY OTHER
APPLIANCE.
-Hot water leaving this appliance can cause severe burns
due to scalding. The hazard is increased for young children,
the elderly, or the disabled where water temperatures
o o exceed 125 F (52 C).
Use anti-scald valves 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 unit is operated in combination with dishwashing or
space heating applications.
-If this storage tank has been exposed to flooding, freezing,
fire, or any unusual condition, do not put it into operation until
it has been inspected and approved by a qualified
professional. THESE CONDITIONS CAN RESULT IN
UNSEEN INTERNAL DAMAGE and are not subject to
warranty coverage.
-Exposure to airborne chemicals can cause severe corrosion
to the unit. Air containing vapours from cleaning solvents,
pool chemicals, refrigerator or air conditioning refrigerants,
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 compounds which are potentially
corrosive.
Products of this type should not be stored near the unit.
-HYDROGEN GAS CAN BE PRODUCED IN A HOT WATER
SYSTEM. THIS CAN BE PROBLEMATIC IN SYSTEMS
WITH LONG STANDBY PERIODS. HYDROGEN GAS IS
EXTREMELY FLAMMABLE.
To reduce the risk of injury under these conditions, it is
recommended that the hot water faucet be opened for
several minutes at the kitchen sink before using any
electrical appliance that is connected to the hot water
system. If hydrogen is present, there will probably be an
unusual sound such as air escaping through the pipe as the
water begins to flow. THERE SHOULD BE NO SMOKING,
OR OPEN FLAME NEAR THE FAUCET AT THE TIME THAT
IT IS OPEN.
WARNING:
THE WATER HEATING SOURCE, PIPING,
AND COMPONENTS CONNECTED TO THE STORAGE
TANK MUST BE SUITABLE FOR POTABLE WATER USE.
TOXIC CHEMICALS SUCH AS USED FOR BOILER
TREATMENT MUST NOT BE INTRODUCED INTO THE
TANK. ONLY POTABLE WATER IS ALLOWED TO ENTER
THE INSULATED STORAGE TANK UNIT.
INSTALLATION CODE REQUIREMENTS