25
10.0
BOILER START UP AND OPERATION
CAUTION:
DO NOT ATTEMPT TO START THE BURNER WHEN EXCESS OIL HAS
ACCUMULATED, WHEN THE UNIT IS FULL OF VAPOR OR WHEN THE COMBUSTION
CHAMBER IS VERY HOT
10.1 START UP PROCEDURE
•
Prior to start up make sure the service switch is in the
OFF
position.
•
Check all fittings and wiring.
•
Ensure that the boiler and the entire heating system are completely filled with water and that
all air has been purged from the system. Verify that proper system pressure has been
achieved. The minimum PSIG is 12.
•
Check to ensure that clean, quality #2 heating oil has been used to fill your storage tank.
Inspect for oil leaks.
•
Open all manual shutoffs throughout the system.
•
Set operating controls to the recommended settings.
•
Follow the manufacturer’s instructions for proper light off and setting. Using accurate
combustion test equipment to adjust the burner for proper “steady state” operation. The use
of accurate instruments is necessary to achieve maximum efficiency, reliable operation and
the lowest operational costs.
•
Adjust the thermostat to the manufacturer’s instruction
•
Place this manual, the control manual and the burner manual along with related consumer
information in an easily accessible location. Installers should make the consumer aware of
the content and location of this information.
10.2 HONEYWELL L7248 AQUASTAT
Adjusting Settings
To discourage unauthorized changing of
Aquastat
settings, a procedure to enter the
ADJUSTMENT mode
is required.
To enter the
ADJUSTMENT
mode, press the
UP,
DOWN
and
I
button simultaneously for three seconds.
Press the
I
button until the feature requiring adjustment
is displayed.
Then press the
UP and/or DOWN
buttons to move the
set point to the desired value. After 60 seconds without
any button inputs, the control will automatically return to
the RUN
mode and lock the setting.
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