33
VIII. SySTEm START-UP (continued)
cycling the burner operation about 5 to 10 times will
rid oil line of this air.
2. IF NOZZLE CONTINUES TO DRIP, repeat
Paragraph H, Step 1 above. If this does not stop the
dripping, remove cut-off valve and seat, and wipe
both with a clean cloth until clean, then replace and
readjust oil pressure. If dripping or after burn
persist replace fuel pump.
L.
TEST CONTROLS.
1. Check thermostat operation. Raise and lower
thermostat setting as required to start and stop
burner.
WARNING
Before installation of the boiler is considered
complete, the operation of all boiler controls must
be checked, particularly the primary control and
high limit control.
2.
VERIFY OIL PRIMARY CONTROL FEA-
TURES
using procedures outlined in Instructions
furnished with control or instructions as follows:
a.
GeniSys 7505 Control Features
, see Figure 25.
i.
The GeniSys 7505 is a microprocessor-based
control. The indicator light provides diagnos-
tic information for lockout, recycling and cad
cell status. There is a manual reset button to
exit the Lockout Mode.
Figure 25: GeniSys 7505 Oil Primary Terminals,
LED's and Reset Button
ii.
Pump Priming Cycle: To facilitate purging
air from the oil lines and filters, the 7505 can
be placed in a purge routine by:
• After the burner starts, press and hold the
reset button for 15 seconds until the
yellow light turns on. This indicates that
the button has been held long enough.
• Release the reset button. The yellow light
will turn off and the burner will start up
again.
• At burner start up, click the reset button
while the igniter is till on. This will
transition the control to a dedicated
Pump Prime mode, during which the
motor, igniter, and valve are powered for
four (4) minutes. The yellow light will be
on.
• At the end of four (4) minutes, the yellow
light will turn off and the control will
automatically return to standby mode.
iii.
Limited Recycle:
This feature limits the
number of recycle trials (for each call for
heat) to a maximum of three trials. If the
flame is lost three times and does not success
-
fully satisfy a call for heat, the 7505 locks
out.
iv.
Limited Reset (Restricted Mode):
In order to
limit the accumulation of unburned oil in the
combustion area, the control can only be reset
three times. The reset count returns to zero
each time a call for heat is successfully
completed.
v.
T-T Jumper: Select models have pre-installed
T-T jumper.
DO NOT
remove jumper.
Note:
DO NOT
remove "T-T" jumper
unless
wiring diagram indicates a direct connec-
tion from thermostat and/or tankless
heater aquastat control to the oil burner
primary control's "T-T" terminal. Refer to
appropriate wiring diagram, see Figure
11A or 11B.
vi.
Diagnostic LED: The indicator light on oil
primary control provides lockout, recycle and
cad cell indications as follows:
•
Flashing at 1 Hz (½ second on, ½ second
off): system is locked out or in Restricted
Mode.
•
Flashing at ¼ Hz (2 seconds on, 2 seconds
off): control is in Recycle Mode.
•
On: cad cell is sensing flame.
•
Off: cad cell is not sensing flame.
Summary of Contents for LE DV Series
Page 5: ...5 I General Information Figure 1A LEDV Packaged Water Boiler with Beckett AFII Burner ...
Page 6: ...6 I General Information continued Figure 1B LEDV Packaged Water Boiler with Riello BF Burner ...
Page 19: ...19 v venting continued Figure 11 Vent Installation Figure 12 Vent Connector Un Assembled ...
Page 20: ...20 v venting continued Figure 13 Vent Connector Assembled Figure 14 Air Intake Installation ...
Page 48: ...48 xiii Repair Parts continued Figure 29 LEDV Bare Boiler Assembly ...
Page 50: ...50 xiii Repair Parts continued Figure 30 LEDV Boiler Jacket Insulation ...
Page 55: ...55 xiii Repair Parts continued Figure 33 Vent Kit Repair Parts ...
Page 60: ...60 U S Boiler Company Inc P O Box 3020 Lancaster PA 17604 1 888 432 8887 www usboiler net ...
