15
B. TWO LINE SYSTEM
Install the pressure gauge and turn burner on. The system will vent itself through the return line and flame
will appear as soon as air has been eliminated.
In the event a lot of air is present in the oil, making it appear milky or frothy, flame is not sighted within 4
minutes, or the primary control locks out, reference the included Beckett Technical Information Bulletin,
page 4, under the heading “Priming the Pump”.
PART 13: STARTING THE HEATER
A. FILLING THE HEATER WITH WATER
Fill the heater with water. Open a hot water faucet to allow any trapped air to escape.
NEVER OPERATE THE WATER HEATER WITHOUT FIRST BEING CERTAIN IT IS FILLED WITH
WATER.
This water heater can deliver scalding water temperatures from any faucet in the system. Be careful when
using hot water to avoid scalding injury.
Certain appliances, such as dishwashers and automatic clothes washers, require increased water
temperatures. By setting this water heater to a higher water temperature setting, you may create greater
potential for a scalding injury. To protect against injury, install an anti-scalding tempering valve in the
water system. This valve will reduce water temperature by mixing cold and hot water in branch water
lines. Such valves are available from your local plumbing supplier.
Consumer: Please consult your water heater installer concerning this matter.
B. TO PUT THE HEATER IN OPERATION
Install a pressure gauge. Set all the controls to the normal starting position. Turn on the electric power
switch to the oil fired water heater. The burner should start, ignite and burn. The flame can then be
observed through the peep site hole.
C. USING INSTRUMENTS TO ADJUST THE FLAME
Once you have obtained a flame, the oil pressure should be checked and adjusted to the normal
operating pressure of 100 psi. The air inlet can then be adjusted so that the flame is a clean yellow with
slightly smoky tips.
IT IS MANDATORY
that the installer use combustion test instruments when adjusting
a flame.
When the burner has run twenty minutes or more it may be necessary to readjust the air inlet in order to
obtain the proper fire with a hot combustion chamber. Adjust the air inlet on the burner for the minimum
amount of air for clean combustion while the combustion chamber is hot. We suggest 9 1/2% to 11% CO
2
with a smoke reading no darker than 1 on the Bachrach Scale.
KEEP THE CO
2
LEVEL AS LOW AS POSSIBLE. THIS KEEPS THE COMBUSTION SYSTEM CLEAN.