17
When the thermostat senses a need for hot water, a valve is opened which
allows gas to flow to the closed solenoid valve. As gas pressure builds up
within the solenoid, the gas pressure switch closes and 24 VAC flows to
the blower relay.
The blower relay contacts close and send 115 VAC to the vent blower
which turns it on. Air flow from the vent blower closes the air pressure
switch sending 24 VAC to the solenoid valve. The solenoid valve opens
and allows gas to flow to the burner which is lit by the pilot.
START-UP / OPERATION
WARNING
IF YOU DO NOT FOLLOW THESE INSTRUCTIONS EXACTLY, A FIRE OR
EXPLOSION MAY RESULT CAUSING PROPERTY DAMAGE, PER-SONAL
INJURY OR LOSS OF LIFE.
Read these directions thoroughly before attempting to light or relight the
pilot. Check the data plate near the gas valve control/thermostat for the
correct gas. Do not use this water heater with any gas other than the one
listed on the data plate. If you have any questions or doubts consult your
gas supplier or gas utility company.
DO NOT:
•
Operate the water heater if it has been subjected to physical
damage, flooding, or fire.
•
Operate the water heater unless the tank is filled with water.
•
Operate the water heater if the cold water supply inlet valve is
closed.
•
Allow flammable liquids such as gasoline or paint thinner to be stored
or used near this water heater.
•
Allow combustible materials such as newspapers, rags or mops to
accumulate near this water heater.
•
Set or store anything on top of this water heater as it may block the
blower air intake.
•
Light this water heater until all lighting instructions are understood
and followed. Lighting instructions are clearly given in this manual
and on the water heater label.
•
Light this water heater if you smell gas around the appliance area.
IF YOU SMELL GAS:
1. Open the windows.
2. Get all people out of the building.
3. Do not light matches or any other appliance. Do not smoke.
4. Do not touch any electrical switches (on or off) or use any phones in
your residence.
5. Extinguish any open flames immediately.
6. Shut off the gas at the manual shut-off valve. (If using liquid propane
gas, shut off the gas at the L.P. tank outside of your residence.)
7. Use an outside phone and immediately call the gas company and the
fire department. Give your name and address and ask for
instructions.
8. Do not go back into the building . Wait for help to arrive outside of
the building.
L.P.G. (BOTTLED PROPANE) MODELS
Liquefied Petroleum Gas is over 50% heavier than air and in the occurrence
of a leak in the system the gas will settle at FLOOR LEVEL. Basements,
crawl spaces, skirted areas under mobile homes (even when ventilated),
closets and areas below ground level will serve as pockets for the
accumulation of gas. Before lighting an L.P. gas water heater, smell
all
around the appliance at floor level. If you smell gas, follow the directions
as given above.
When your L.P. tank runs out of fuel, turn off the gas at all gas appliances
including pilot lights. After the tank is refilled, all appliances must be re-lit
according to their manufacturer’s instructions.
WATER EXPOSURE
Do not try to light this water heater if the gas valve, main burner, or pilot
have been exposed to water in any way. Immediately call a qualified
service technician to inspect the water heater. DO NOT attempt to repair
these parts. Water heaters subjected to flood conditions or anytime the
main burner, gas controls, or pilot have been submerged in water require
replacement of the entire water heater.
LIGHTING THE WATER HEATER
WARNING
DO NOT ATTEMPT TO LIGHT THIS WATER HEATER UNTIL IT IS
PROPERLY INSTALLED AND YOU UNDERSTAND ALL OF THE SAFETY
WARNINGS AND PRECAUTIONS.
Check the Gas Control Valve/Thermostat and determine which model is
being used for your water heater. Refer to either Figure 17A or 17B and
light the water heater according to its directions.
CHECKING THE DRAFT
After successfully lighting the
water heater, allow the unit to
operate for 15 minutes and check
the blower module for proper draft.
Pass a match flame around the
relief opening of the blower module.
A steady flame drawn into the
opening indicates proper draft. If
the flame flutters or is blown out,
combustion products are escaping
from the relief opening. If this
occurs, do not operate the water heater until proper adjustments or repairs
are made to the vent pipe system.
SEQUENCE OF OPERATION