Burner controls – Beckett CF1000 User Manual
Page 11
11
CF1000 Burner Manual
Burner Controls
Typical Burner Sequence of Operation -
GeniSys 7505
Refer to the appliance manufacturer’s wiring diagram
for actual specifi cations.
Standby:
The burner is idle, waiting for a call for
heat.
Valve-On Delay:
The igniter and motor are on while
the control delays turning on the oil solenoid valve
for the programmed time.
Trial For Ignition:
The oil solenoid valve is
energized. A fl ame should be established within the
factory set trial for ignition time (lockout time).
Lockout:
The control has shut down for one of the
following safety reasons:
The trial for ignition (lockout) time expired
without fl ame being established.
The cad cell detected fl ame at the end of the
Valve On Delay state.
To reset the control from lockout click the button
1-second.
NOTE:
A recurrence of the above failure modes
or a failed welded relay check could cause the
control to enter a Hard Lockout state that must
be reset only by a qualifi ed service technician.
To reset from Hard Lockout, hold the reset button
for 15 seconds until the yellow light turns on.
1.
2.
3.
4.
a.
b.
Ignition Carryover:
Once fl ame is established,
the igniter remains on for 10 additional seconds to
ensure fl ame stability.
Run:
The fl ame is sustained until the call for heat
is satisfi ed. The burner is then sent to Motor-Off
Delay, if applicable, or it is shut down and sent to
Standby.
Recycle:
If the fl ame is lost while the burner is
fi ring, the control shuts down the burner, enters a
60 second recycle delay, and repeats the ignition
sequence. The control will continue to Recycle each
time the fl ame is lost, until it reaches a pre-set time
allotment. The control will then go into Hard Lockout
instead of recycle. This feature prevents excessive
accumulation of oil in the appliance fi ring chamber.
Motor-Off Delay:
If applicable, the oil solenoid
valve is turned off and the control delays turning the
motor off for the set motoroff delay time before the
control returns to standby.
Pump Prime:
The igniter and motor are on with the
oil solenoid valve energized for 4 minutes. During
Pump Prime mode, the cad cell is disregarded,
allowing the technician to prime the pump without
having to jumper the cad cell.
Cad Cell Resistance Measurement: (Refer to the
instructions on Page 19.)
5.
6.
7.
8.
9.
Section: Burner Controls
Standby
Trial for
Ignition
Ignition
Carryover
Run
Lockout
Recycle
Valve-on
Delay
Motor-off
Delay
1
3
4
5
2
8
6
7
Pump
Prime
9
Figure 11 - Typical Burner Sequence of Operation - 7505