ProSelect Force Hot Water Oil Boiler Installation Manual

42
106346-06 - 8/19
FORCE
Installation, Operating & Service Manual
Figure 34: Retention Head/Throttle Cup Alignment
Figure 35: Head/Air Adjustment Plate Assembly
Figure 36: Adjusting Fuel Pump Pressure
m. Loosening the splined nut and lower acorn
nut, and, turning the adjustment screw,
either forward or, rearwards, will adjust the
head/air plate. DO NOT LOOSEN UPPER
LEFT ACORN NUT, which locks zero head/
air setting. See Figure 35.
n. OPEN ALL SHUT-OFF VALVES in the oil
supply line to the burner.
o. ATTACH A PLASTIC HOSE TO FUEL PUMP
VENT/BLEED FITTING and place the other
hose end into an empty container to catch
the oil.
p. SLIGHTLY OPEN FLAME OBSERVATION
PORT COVER on burner swing door,
enough to insert draft gauge probe later.
WARNING
Very hot flue gases come out of flame
observation port cover hole when boiler is
operated with port cover open. Always wear
proper eye protection.
F. START OIL BURNER.
1. Open vent fitting on fuel pump.
2. PRESS RED RESET BUTTON on primary
control, hold for ten (10) seconds 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.
5. Adjust oil pressure.
a. When checking a fuel unit's operating
pressure, a reliable pressure gauge may
be installed in either the bleeder port or the
nozzle port. Refer to Figure 36.
b. Locate oil pressure adjusting screw and
turn screw to obtain proper pump pressure,
refer to Tables 9 and 10 at the end of this
manual.
Figure 33: Electrode Tip Gap and Spacing
10 System Start-Up (continued)
!