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Form 6104 BCF5-R0301
Instruction Manual – Model CF500/CF800 Oil Burner
Figure 9a – Typical wiring
Wire the burner — R7184
Install the burner and all wiring in accordance with the
National Electrical Code and all applicable local codes or
requirements.
Wire the burner in compliance with all instructions provided
by the appliance manufacturer. Verify operation of all controls
in accordance with the appliance manufacturer's guidelines.
See
Figure 9a for a typical wiring diagram, with R7184 oil
primary, for reference purposes only.
Sequence of operation — typical
1. Standby — The burner is idle, waiting for a call for heat.
When a call for heat is initiated, there is a 2- to 6-second
delay while the control performs a safe start check.
2. Valve-on delay — As applicable, the ignition and motor
are turned on for a 15-second prepurge.
3. Trial for ignition (TFI) — The fuel valve is opened, as
applicable. A flame should be established within the 15-
second lockout time (30-second lockout time is avail-
able).
4. Lockout — If flame is not sensed by the end of the TFI,
the control shuts down on safety lockout and must be
manually reset. If the control locks out three times in a
row, the control enters restricted lockout. Call a qualified
service technician.
5. Ignition carryover — Once flame is established, the
ignition remains on for 10 seconds to ensure flame
stability. It then turns off.
6. Run — The burner runs until the call for heat is satisfied.
The burner is then sent to burner motor-off delay, as
applicable, or it is shut down and sent to standby.
7. Recycle — If the flame is lost while the burner is firing,
the control shuts down the burner, enters a 60-second
recycle delay, and then repeats the ignition steps
outlined above. If the flame is lost three times in a row,
the control locks out to prevent continuous cycling with
repetitious flame loss caused by poor combustion.
8. Burner motor-off delay — If applicable, the fuel valve is
closed and the burner motor is kept on for the selected
postpurge time before the control returns the burner to
standby.
Standby
Trial for
ignition
Lockout
RecycleRun
3 4
Ignition
carryover
Motor-off
delay
(postpurge)
8
6
7
5
Valve-on
delay
2
1
Legend
FD Fused disconnect, by others
LM Limit controls, by others
OP Operating controls, by others
PR Oil primary control, R7184 typical
CC Flame sensor, cad cell typical
TR Ignition transformer
M1 Burner motor
S1 Oil valve
T-T 24-volt thermostat/limit terminals
F-F Cad cell flame sensor terminals
Do not by-pass any safety control.
By-passing a safety control could result in
severe personal injury, death or substantial
property damage.
Electrical shock hazard - can cause injury
or death. Disconnect power before installing
or servicing. Provide ground wiring to the
burner in accordance with the National
Electrical Code.