Beckett RWF40 CG15 Manuel D’Utilisation

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CG15, CG25, CG50 Burner Manual
Figure 9A - Typical Wiring Using Model RM7897C for High/Low Control (For Reference Only) 
continuing to detect a fl ame, the burner will operate 
in the RUN mode until the load demand is satisfi ed 
or a limit opens.  
For High/Low control wiring (Figure 9A), if 
terminals RC1 and RC2 are jumpered, the 
burner operates in the Low-High-Off mode.  The 
burner starts at Low and goes to High after the 
fl ame stabilization period.  Flame is extinguished 
when the load is satisfi ed or a limit opens, and 
the burner is sent to post purge.  
For High/Low control wiring (Figure 9A), if 
a high / low control has been wired between 
terminals RC1 and RC2 the burner starts at Low 
and is released to go to High after the fl ame 
stabilization period.  It can repeatedly cycle 
between low and high as necessary to meet 
load demand until the load is satisfi ed or a limit 
opens, and the burner is sent to post purge.
  
For modulating control wiring (Figure 9B), the 
burner starts at Low and is released to modulate 
after the fl ame stabilization period.  It can 
modulate between low and high as necessary to 
meet load demand until the load is satisfi ed or a 
limit opens, and the burner is sent to post purge.
Load Satisfi ed – The fuel valves are closed.  After 
a 15 second post purge, the burner switches to idle 
until the next call for operation.
8.
This operation sequence is 
typical and for reference only. The 
primary control could vary, depending on the customer 
specifi cation and code requirements.  For the specifi c 
operating sequence that applies to your installation, 
consult the appliance manufacturer’s directions, wiring 
instructions, and control manufacturer’s literature 
supplied with your burner.
Section: Sequence of Operation