20
When hot water is drawn from the tank in frequent
short bursts, a condition known as “stacking” is created.
“Stacking” is the result of increased cycling of the burner
and can produce very hot water temperatures at the hot
water outlet. Always remember to check the hot water
coming out of any faucet with your hand before use. This
will reduce the risk of scalding-related injuries.
The gas control pictured in this manual is equipped with a
resettable type automatic high temperature cut-off. Should
the temperature of the water exceed 195°F (91°C), the high
temperature cut-off will automatically shut off the gas supply
to the water heater. If this situation occurs, the gas control
must be reset by a qualified service technician.
DANGER
WARNING
CAUTION
AVERTISSEMENT
ATTENTION
Should overheating occur or the gas supply fail to shut-
off, close the gas supply manual shut-off valve. Failure
to follow this instruction can result in property damage,
personal injury, or death.
Out of Fuel
If your water heater should run out of gas, proceed as
follows:
1) Toggle the “ON/OFF” switch located on the gas control
to the “OFF” position.
2) Unplug the power cord from the wall socket.
3) Close the gas supply manual shut-off valve.
4) Once the gas supply has been re-established, proceed to
the
Operating Instructions
.
Housekeeping
Keep the area around the water heater clean and free of dust,
lint, and dirt. Make sure that all of the minimum clearances
to combustible materials are being maintained.
DANGER
WARNING
CAUTION
AVERTISSEMENT
ATTENTION
DO NOT
store or use gasoline or other flammable vapours
and liquids around the water heater.
DO NOT
put or store any objects on the top of the water
heater. Failure to follow these instructions can result in
property damage, personal injury, or death.
Flammable Vapour Sensor
This water heater is equipped with a flammable vapour
sensor (FV) that will shut it down in the event of a flammable
vapour incident. It is a safety feature that may prevent
property damage, personal injury, or death.
The FV sensor is located on the front left bottom of the
exterior casing of the water heater. The FV sensor is
protected from shock and contaminants by a robust plastic
cover. The function of the FV sensor is to detect the presence
of flammable vapours before they enter the combustion
chamber and ignite. If the FV sensor detects the presence
of flammable vapours while the water heater is operating,
the gas control will switch to lock-out mode and the water
heater will shut down. If the water heater is not operating
when the flammable vapours are detected, the control will
switch to lock-out mode and prevent the water heater from
lighting.
After a flammable vapour incident has occurred and the
flammable vapours have dissipated, the FV sensor is
designed to automatically reset itself. The Intelli-Vent
™
gas
control however, will have gone into lock-out mode and will
need to be manually reset. A qualified service technician
must be called to determine if flammable vapours entered
the combustion chamber and ignited. In most instances,
there will not have been ignition of flammable vapours inside
the combustion chamber because the FV sensor will have
detected these vapours and shut down the water heater. In
this case, the Intelli-Vent
™
gas control can be reset and the
water heater may resume normal operation. On the other
hand, if the flammable vapours ignited inside the combustion
chamber, the water heater may need to be replaced. The
technician will be able to determine whether or not the
water heater needs to be replaced based on the amount of
flammable vapours that entered the combustion chamber
and the damage to the water heater from the resulting fire.
Condensation
As moisture from the products of combustion comes into
contact with the cold surface of the inner tank, it may
condense. This situation will usually occur:
1) When the water heater is filled with cold water for the first
time.
2) If the water heater has been undersized.
3) When large amounts of hot water are drawn from the
water heater in a short period of time, and the refill water
is very cold.
Due to the high-efficiency rating of this gas-fired water
heater, it may produce more condensation than older
models. Condensation forming on the flue tube will drop on
the burner making a “sizzling” sound. This condition is not
uncommon and must never be misinterpreted as a leaking
tank. It will disappear once the water becomes heated.
Because of the large amounts of water that can condense, it
is very important that a drain pan be installed under the water
heater (
refer to Figure 8
).
Under no circumstances
is the manufacturer to be held liable for any water
damage, in connection with this water heater
.
If the problem does not go away and water continues to
drip after the water heater has heated up, check all of the
plumbing connections to make sure they are not leaking.
GENERAL MAINTENANCE