19
The gas control valve pictured in this manual is equipped
with a single-use type automatic high temperature cut-off.
Should the temperature of the water exceed 195
o
F (91
o
C),
the high temperature cut-off will automatically shut off the
gas supply to the water heater. If this situation occurs, the
gas control valve must be replaced immediately by a quali-
fied service technician.
WARNING
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 fol-
lows:
1) Unplug the power cord from the wall socket.
2) Close the gas supply manual shut-off valve.
3) Once the gas supply has been re-established, proceed to
the Lighting 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.
WARNING
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 sen-
sor (FV) that will shut it down in the event of a flammable
vapour incident. It is a safety feature that may prevent prop-
erty damage, personal injury, or death.
The FV sensor is located on the front left bottom of the exte-
rior 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 flam-
mable vapours before they enter the combustion chamber
and ignite. If the FV sensor detects the presence of flam-
mable 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 flam-
mable vapours have dissipated, the FV sensor is designed to
automatically reset itself. The Intelli-Vent
®
gas control how-
ever, 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 con-
dense. 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 mod-
els. 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 circum-
stances 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.
OPERATING INSTRUCTIONS
