Weil-McLain NX ユーザーズマニュアル

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WM  550-141-996/1105 
  
 
 
RWB 6104WMNX R1005
Start the Burner and Set Combustion
Start-up and Initial Settings
 
Open the shutoff valves in the oil supply line to 
the burner.
Referencing Figure 5 verify and/or set the Head/
Air Adjustment Pointer to the value shown in 
Table 1. This is an initial air setting for the pump 
bleeding procedure only. Calibrated test instru-
ments must be used for the fi nal head/air adjust-
ment.
Set the thermostat substantially above room 
temperature.
Close the line voltage switch to start the burner. 
If the burner does not start within the 3 to 10 
second safety start check timing, you may have 
to reset the safety switch on the burner primary 
control.
 Bleed the air from the fuel pump as soon as the 
burner motor begins rotating.
1.
2.
3.
4.
5.
Warning–Professional
Service Required 
This equipment must be installed, adjusted and put into 
operation only by a qualified individual or service agency 
that is: 
x Licensed or certified to install and provide technical 
service to oil heating systems.   
x Experienced with all applicable codes, standards and 
ordinances
x Responsible for the correct installation and 
commission of this equipment 
x Skilled in the adjustment of oil burners using 
combustion test instruments.
The installation must strictly comply with all applicable 
codes, authorities having jurisdiction and the latest 
revision of the National Fire Protection Association 
Standard for the Installation of Oil-Burning Equipment, 
NFPA 31 (or CSA B139 and B140 in Canada). 
Regulation by these authorities take precedence over the 
general instructions provided in this installation manual.
S105
Read and understand the manual 
supplied with this equipment. Incorrect 
installation, adjustment, and use of
this burner may result in 
severe personal injury 
death, or substantial 
property damage from 
fire, carbon monoxide 
poisoning, soot or 
explosion.
!
Figure 5. – Head/air Adjustment Plate 
Assembly
Upper Acorn Nut
(Lock Zero 
Calibration)
Lower  Acorn Nut
(Lock Air Setting)
Scale
Pointer
Splined
Nut
Adjustment
Nut
SK9667
Start the Burner
 Step 
1:
 To bleed the fuel pump, attach a clear 
plastic hose over the vent fi tting. Loosen the fi t-
ting and catch the oil in an empty container. Tight-
en the fi tting when all the air has been purged 
from the oil supply system.
 
Step 2:
 If the burner locks-out on safety during 
bleeding, reset the safety switch and complete 
the bleeding procedure. Note — For R7184 pri-
mary controls, see Technician’s Quick Reference 
Guide, part number 61351 or 61465, for special 
pump priming sequence. 
 
Step 3:
 If the burner stops after a fl ame is estab-
lished, additional bleeding is probably required. 
Repeat the bleeding procedure until the pump is 
primed and a fl ame is established when the vent 
fi tting is closed.
Prepare for combustion tests by drilling a 
1/4
” 
sampling hole in the fl ue pipe between the appli-
ance and the barometric draft regulator.  Seal this 
hole when testing is complete. (See appliance 
manufacturer for location.)
Loosen the splined nut approximately one turn.  
(DO NOT loosen the upper acorn nut.  This is 
used only for setting the zero adjustment.)  (See 
Figure 5.)
A  5/16” nut driver or fl at blade screwdriver can 
be used to  turn the adjustment screw for head/air 
setting.
6.
7.
8.