Beckett CF500 Manuel D’Utilisation

10

Wire the burner 

— R7184

Disconnect electrical power before installing or servic-
ing the burner.
Provide ground wiring to the burner, metal control en-
closures and accessories. (This may also be required to 
aid proper control system operation)
Perform all wiring in compliance with the National 
Electric Code ANSI/NFPA 70 (Canada CSA C22.1).

y

y

y

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 10 for a typical wiring diagram, with R7184 oil 
primary, for reference purposes only. 

Legend (Figure 10)

FD

Fused disconnect

LM

Limit controls

OP

Operating controls

PP

Oil primary controls

CC

Flame sensor, CAD cell type

TR

Ignition transformer

M1

Burner motor

S1

Oil valve

T-T

24-volt thermostat

F-F

Flame sensor terminals

Sequence of operation

 

— typical

Standby -- The burner is idle, waiting for a call for heat. 
When a call for heat is initiated, there is a 3- to 10-second 
delay while the control performs a safe start check. 

 

Valve-on delay — As applicable, the ignition and motor are 
turned on for a 15-second prepurge. 

 

 

 

Trial for ignition (TFI) — The fuel valve is opened, as ap-
plicable. A fl ame should be established within the 15-second 
lockout time (30-second lockout time is available).  

 

Lockout — If fl ame 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 qualifi ed service technician.  

Ignition carryover — Once fl ame is established, the ignition 
remains on for 10 seconds to ensure fl ame stability. It then 
turns 

off. 

      

Run — The burner runs until the call for heat is satisfi ed. The 
burner is then sent to burner motor-off delay, as 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 de-
lay, and then repeats the ignition steps outlined above. If the 
fl ame is lost three times in a row, the control locks out to pre-
vent continuous cycling with repetitious fl ame loss caused by 
poor 

combustion. 

     

Burner motor-off delay — If applicable, the fuel valve is 
closed and the burner motor is kept on for the selected post-
purge time before the control returns the burner to standby.   

If the control locks out three times in a row without a com-
plete heat cycle between attempts, the lockout becomes re-
stricted. A qualifi ed service technician should be called to 
inspect the burner.

y