LAARS Multi Flue CF-100-3 - Install and Operating Manual - Manual (Page 15)

15
DRAINING THE WATER HEATER
Should it become necessary to completely drain the water heater, make sure
you follow the steps below:
1. Shut off the oil supply to the water heater.
2. Turn off/disconnect all electric power to the water heater.
3. Close the cold water supply shut-off valve.
4. Open a hot water faucet to allow air to enter the system.
5. Open the drain valve. This is threaded to receive a standard hose coupling.
Caution: This water may be hot.
To put the water heater back into operation, refer to "Filling The Water
Heater".
CAUTION:
Hydrogen gas can be produced in a hot water system served by this water
heater that has not been used for a long period of time (generally two weeks
or more). 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 a convenient sink before using any electrical
appliance 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 shall be no smoking or open flame near the
faucet at the time it is open.
MAINTENANCE
In addition, the following steps should be performed at six-month intervals
unless otherwise specified:
1. Make sure you clear the combustion air openings of any dust, lint or other
restrictions. Flow of combustion air MUST NOT be restricted.
2. Check the burner flame periodically. If it becomes out of shape or smoky,
call your service technician.
3. When cleaning your heater room or utility room, always turn off the burner
to reduce the amount of dust and lint drawn into the burner.
4. The electric ignition system and all controls should be checked periodically
for reliability of operation and adjusted if necessary.
5. Lightly oil the burner motor with "Medium" detergent-free automobile engine
oil twice per year.
6. Clean Strainer or Filter as follows:
a) Oil valves between oil storage tank and burner should be shut.
b) Remove Strainer cover.
c) Remove Strainer baskets and wash in kerosene.
d) Reassemble.
7. Drain off at least one gallon of water each month to remove the silt and
sediment from the water heater.
CAUTION: THIS WATER MAY BE HOT.
8. Check the temperature-pressure relief valve to insure that the valve has not
become inoperable. Lift the lever at the top of the valve several times until
the valve seats properly without leaking and operates freely. CAUTION:
THIS WATER MAY BE HOT.