13
WARNING
FAILURE TO CORRECT BACK DRAFTS MAY CAUSE AIR
CONTAMINATION AND UNSAFE CONDITIONS.
• If the back draft cannot be corrected by the normal method or if
a suitable draft cannot be obtained, a blower type flue gas
exhauster must be employed to assure proper venting and
correct combustion.
HIGH TEMPERATURE LIMIT SWITCH
(Auto Reset Type Energy Cut Off)
TO RESET AUTOMATIC GAS SHUTOFF
This water heater is equipped with a automatic reset type high limit
(Energy Cutoff) sensor. The high limit switch interrupts the pilot and
main burner gas flow should the water temperature reach
205°F(96°C). The high limit will automatically reset when the
water temperature drops below 140°F (60°C).
WARNING
THE GAS VALVE MUST HAVE BEEN IN THE OFF POSITION FOR
AT LEAST 5 MINUTES. This waiting period is an important safety
step. Its purpose is to permit gas that may have accumulated
in the combustion chamber to clear. IF YOU DETECT GAS
ODOR AT THE END OF THIS PERIOD DO NOT PROCEED WITH
LIGHTING. RECOGNIZE THAT GAS ODOR, EVEN IF IT SEEMS
WEAK, MAY INDICATE PRESENCE OF ACCUMULATED GAS
SOMEPLACE IN THE AREA WITH RISK OF FIRE OR EXPLOSION.
SEE THE FRONT PAGE FOR STEPS TO BE TAKEN.
Before lighting the pilot and operating the heater, the following
conditions must exist:
• Entire system filled with water.
• Air purged from all lines and no leaks (gas and water).
• All gas and water lines open.
SHOULD OVERHEATING OCCUR OR THE GAS SUPPLY FAIL
TO SHUT OFF, TURN OFF THE MANUAL GAS CONTROL VALVE
TO THE APPLIANCE.
SERVICE INFORMATION
The installer may be able to observe and correct certain problems
which may arise when the unit is put into operation. HOWEVER, it
is recommended that only qualified servicemen, using appropriate
test equipment, be allowed to service the heater.
FOR YOUR SAFETY AND SATISFACTORY OPERATION, IT IS
RECOMMENDED THAT THIS HEATER BE CHECKED ONCE A
YEAR BY A COMPETENT SERVICE PERSON.
USERS OF THIS APPLIANCE SHOULD BE AWARE THAT GAS
COMPONENTS WEAR OUT OVER A PERIOD OF TIME. THE
GAS CARRYING COMPONENTS OF THIS APPLIANCE SHOULD
BE INSPECTED FOR PROPER OPERATION PERIODICALLY BY
A QUALIFIED SERVICE TECHNICIAN.
PILOT AND MAIN BURNER
Check pilot and main burner (figure 8) every 12 months for proper
flame characteristics. This is done by removing door(s) on heater.
The main burner should provide complete combustion of gas;
ignite rapidly; give reasonably quiet operation; cause no
excessive flame lifting from the burner ports. Make sure that the
flow of combustion and ventilation air is not blocked.
PROPANE
NATURAL
FIGURE 8
If proper flame characteristics are not evident, check for
accumulation of lint or other foreign material that restricts or blocks
the air openings in the heater or burner.
WARNING
SOOT BUILD-UP INDICATES A PROBLEM THAT REQUIRES
CORRECTION BEFORE FURTHER USE. CONSULT WITH A
QUALIFIED SERVICE TECHNICIAN.
Should the main burner or burner air openings require cleaning,
turn off the gas to the water heater. Follow "to turn off gas to
appliance" on pages 10 and 11 and allow the burner to cool. Remove
the burner and clean with a soft brush. Clean main burner orifice
with a suitable soft material. Follow lighting instructions on pages
10 and 11 to put the water heater back in operation.
CHECK FOR GOOD FLOW OF COMBUSTION AND VENTILATING
AIR TO THE UNIT. MAINTAIN A CLEAR OPEN AREA AROUND
THE HEATER AT ALL TIMES. DO NOT STORE COMBUSTIBLES
OR FLAMMABLE LIQUIDS NEAR OR AROUND AN APPLIANCE.
CHECKING GAS INPUT
For appliance installation locations with elevation above 2000
ft.(610m) refer to HIGH ALTITUDE INSTALLATIONS section of this
manual for input reduction procedure.
With this heater in operation, determine whether it is receiving the
full rated input of gas. This may be done by timing the gas meter
and measuring gas pressure with a gauge or manometer. When
the heater is operating at full capacity (full gas input) it should
consume approximately 1 cubic foot of gas in the time shown in
table 3.
