Beckett NX Manuel D’Utilisation

RWB 6104 BNX R02

  

 

Page 7

  The burner is supplied with either a one-stage 

pump or a two-stage pump based on the oil supply 
system requirements.  Consult the instructions pro-
vided with the pump for installation specifi cations.

  When installing a one-pipe system, connect the 

inlet line to the pump inlet.  The fuel pump may be 
installed with gravity feed or lift.  The maximum al-
lowable lift for a single pipe installation is 8 ft.  

  When installing a two-pipe system, remove the 

1/16” pipe by-pass plug from plastic bag attached 
to fuel unit.  Remove 1/4” plug from return port.  
Insert and tighten the by-pass plug.  Attach return 
and inlet lines.  The return line should terminate ap-
proximately 3 to 4” above supply line inlet.  Failure 
to do this may introduce air into the system and 
could result in loss of prime.

Start the Burner and Set Combustion

  Refer to the appliance manufacturer’s wiring dia-

gram prior to connecting the burner wiring. All wir-
ing must be in accordance with the latest revision of 
National Electric Code NFPA 70 and all local codes 
and regulations.

  The R7184 primary control with valve-on delay and 

burner motor-off delay, shown in Figure 4, requires 
a constant 120 volt AC power source supplied to 
the black wire on the control. (Refer to the appli-
ance manufacturer’s instructions.) The red wire 
goes to the appliance limit circuit. Please note that 
other control manufacturers may use different wire 
colors for power and limit connections.