41
103536-13 - 2/24
MegaSteam
Installation & Service Manual
2. Press and Hold the ACTION Button on the front
of Primary Control for fifteen (15) seconds until
the yellow light turns on 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 tables 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 and Hold the ACTION Button on the front
of Primary Control for fifteen (15) seconds until
the yellow light turns on 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 1-1.
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”.
1. SET ROOM THERMOSTAT about 10° above
room temperature.
8
System Start-Up
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.
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