Install Instructions

31
3. STEAM BOILERS:
With an PA404A Pressure Limit - 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. STEAM BOILERS WITH TANKLESS
DOMESTIC WATER HEATERS, set boiler
water temperature dial on L4006 operating control
at 190°F (max.). Set differential at 10°.
5. WATER BOILERS WITHOUT TANKLESS
HEATERS are equipped with an Intelligent Oil
Boiler Control (Boiler Control). The Boiler Control
is factory programmed with a High Limit setpoint
of 180°F. The High Limit setpoint is adjustable
between 140°F and 240°F. This temperature may be
varied to suit the installation requirements.
HIGH LIMIT DIFFERENTIAL is factory
programmed at 15°F and is adjustable between 10°F
and 30°F.
6. WATER BOILERS WITH TANKLESS HEATERS
are equipped with a Warm Start Intelligent Oil
Boiler Control (Warm Start Boiler Control). The
Warm Start Boiler Control is factory programmed
with a High Limit setpoint of 180°F. The High
Limit setpoint is adjustable between 140°F
and 240°F. High Limit Differential is factory
programmed at 10°F. Additionally, the Warm Start
Boiler Control is factory programmed with a Low
Limit setpoint of 110°F. The Low Limit setpoint
is adjustable between 110°F and 220°F. These
temperatures may be varied to suit the installation
requirements.
7. CHECKOUT
Put the system into operation and observe at least
one complete cycle to make sure that the controller
operates properly. See Troubleshooting Section to
use LED to assist in determining system operation.
E. ADJUST OIL BURNER BEFORE STARTING.
1. CHECK BURNER SETTINGS and readjust if
necessary, see Burner Specications, Tables 14A
and 14B at rear of manual.
2. Beckett Burners
a. Inspect Beckett head setting on left side of
burner housing by insuring the blue line MD(V1)
or the line on the label MB(L1) are aligned,
readjust if necessary. Refer to Figure 26 and
Table 14A at the rear of this manual.
b. Check burner air band and air shutter settings.
Readjust if necessary, see Burner Specications
Table 14A at the rear of this manual.
V: SYSTEM START-UP (continued)
c. OPEN ALL OIL LINE VALVES.
d. Attach a plastic hose to fuel pump vent tting
and provide a pan to catch the oil.
e. OPEN FLAME OBSERVATION PORT
COVER on burner swing door.
3. Riello Burners
a. Inspect Riello head setting on left side of burner
by reading the scale embossed on the housing
cover. Refer to Figure 8.
b. Inspect Riello burner air damper and turbulator
setting. Readjust if necessary, see Table 14B at
the rear of this manual.
c. OPEN ALL OIL LINE VALVES.
d. Provide a pan to catch oil.
e. Remove pressure port/bleeder plug from fuel
pump and install Riello Combination Pressure
Gauge and Bleeder Valve Assembly.
f. OPEN FLAME OBSERVATION PORT COVER
on burner swing door.
F. START OIL BURNER.
1. Open vent tting on fuel pump.
2. TURN ‘ON’ BURNER service switch and
allow burner to run until oil ows from vent
tting in a SOLID stream without air bubbles for
approximately 10 seconds.
3. Close vent tting and burner ame should start
immediately after prepurge is completed. Prepurge
prevents burner ame until 10 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.
4. 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. For Beckett
burner refer to Figure 25. Refer to Figure 9 for
Riello burner.
b. Locate oil pressure adjusting screw and turn
screw to obtain proper pump pressure, refer to
Tables 14A and 14B at the rear of this manual.
c. To check the cutoff pressure, deadhead a reliable
pressure gauge onto the copper connector tube
attached to the nozzle port. Run the burner for
a short period of time. Shut the burner off. The
pressure should drop and hold.
d. Remove the gauge and install bleeder port and/or
reconnect the nozzle port line.