Burnham MEGASTEAM MST288 - Manual (Page 43)

43
SECTION VIII: SYSTEM START-UP
1. SET ROOM THERMOSTAT about 10° above
room temperature.
2. PRESS RED RESET BUTTON on front of
burner cover, hold for one (1) second and release to
reset primary control.
3. On STEAM BOILERS:
a. With an L404F1367 - set cut-out pressure
(MAIN scale) on the pressure limit for (1) PSI
and differential pressure (DIFF.) for .5 PSI.
These pressures may be varied to suit individual
requirements of the system.
4. On STEAM BOILERS WITH TANKLESS
DOMESTIC WATER HEATERS, set boiler
water temperature dial on L4006 operating control
at 190°F (max.). Set differential at 10°.
E. ADJUST OIL BURNER BEFORE
STARTING.
1. CHECK BURNER AIR BAND, AIR SHUTTER
AND HEAD SETTING (if applicable), readjust if
necessary, see Table 8 at rear of manual.
2. OPEN ALL OIL LINE VALVES.
3. Attach a plastic hose to fuel pump vent fitting and
provide a pan to catch the oil.
4. OPEN FLAME OBSERVATION PORT COVER
on burner swing door.
F. START OIL BURNER.
1. Open vent fitting on fuel pump.
2. PRESS RED RESET BUTTON on front of burner
cover, hold for one (1) second and release to reset
primary control.
3. TURN ‘ON’ BURNER service switch and
allow burner to run until oil flows from vent
fitting in a SOLID stream without air bubbles for
approximately 10 seconds.
NOTE: For Primary Control "Pump Priming
Cycle" details, see Paragraph I, No. 2., Step a.,
Item ii .
4. Close vent fitting and burner flame should start
immediately after prepurge is completed. Prepurge
prevents burner flame until 15 seconds has elapsed
after initial power is applied to burner. During
prepurge the motor and igniter will operate but the
oil valve will remain closed. Refer to Oil Primary
Control Instructions for more details.
A. ALwAYS INSPECT INSTALLATION
BEFORE STARTING BURNER.
1. Verify that the venting, water piping, oil piping, and
electrical system are installed properly. Refer to
Installation Instructions contained in this manual.
2. Confirm all electrical, water and oil supplies are
turned off at the source and that the vent is clear
from obstructions.
WARNING
Completely read, understand and follow all
instructions in this manual before attempting
start up.
B .
FILL HEATING SYSTEM wITH wATER.
NOTICE
It is important, especially in a steam system, to
properly remove the oil and dirt from the system.
Failure to clean the system can result in erratic
water lines and surging.
CLEAN HEATING SYSTEM if boiler water or
condensate return water is dirty or if erratic water lines
or surging exist after a few days of boiler operation.
Refer to Maintenance and Service Instructions Section
of this manual for proper cleaning instructions for
steam and water boilers.
1. STEAM BOILERS — Fill boiler to normal water
line. Refer to Figure No. 1.
WARNING
The maximum operating pressure of this boiler is
posted on the ASME Data Label located on the top
of the boiler. Never exceed this pressure. Do not
plug relief valve.
C. CHECk CONTROLS, wIRING AND
BURNER to be sure that all connections are tight and
burner is rigid, that all electrical connections have been
completed and fuses installed, and that oil tank is filled
and oil lines have been tested.
D. SET CONTROLS with burner service switch turned
“OFF”.
WARNING
All boilers equipped with burner swing door have a potential hazard which can cause severe property damage,
personal injury or loss of life if ignored. Before opening swing door, turn off service switch to boiler to
prevent accidental firing of burner outside the combustion chamber. Be sure to tighten swing door fastener
completely when service is completed.