26
Figure 14 - Automatic Gas Valve
Gas Valve Safety Shutdown Test
WARNING
Electrical shock hazard. Follow instructions to turn
off electric power. Failure to do so could result in
death or serious injury.
!
Ignition system safety shutoff device must be tested after
placing boiler in operation.
With main burners
fi
ring, disconnect ignition cable from
intermittent pilot control box. Gas valve should shut off
main burners. TURN OFF ELECTRIC POWER to boiler before
reconnecting ignition cable, to prevent electric shock.
Adjust Pilot Burner
1.
Remove screw cover over pilot adjusting screw.
2.
Insert small screwdriver and adjust
fl
ame as needed
See Figure 14 & 15. Turn screw counterclockwise
to increase
fl
ame, clockwise to decrease. Replace
screw cover over pilot adjusting screw.
Main Burner(S)
Main burners do not require primary air adjustment and are
not equipped with primary air shutters.
Main burner
fl
ames form sharp blue inner cones in softer
blue outer mantel, with no yellow. Puffs of air from blow-
ing on
fl
ame or stamping on
fl
oor will cause
fl
ames to turn
orange momentarily.
This is not unusual.
Remain still when
observing main burner
fl
ames. See Figure 16, Page 27 .
If
fl
ame appearance is not correct, check main burner
ori
fi
ces, burner throat and
fl
ame ports for dust and lint
obstruction. It may be necessary to remove rollout shield
to observe main burner
fl
ames. Replace rollout shield after
observation.
Adjust Limit Controls
Instructions for each control are included with the controls.
Recommended Boiler Water Temperatures
Settings can be changed after you have had some idea how
the system works.
Example:
If your system does not give
quite enough heat in very cold weather, you can raise limit
setting to 190°F.
CHECKING AND ADJUSTING
Figure 15 - Pilot Flame Adjustment
3/8” to
1/2” in
Flame
Ignition Electrode
Summary of Contents for XEB II Series
Page 23: ...23 WIRING DIAGRAMS Figure 12 Control Module Damper is not an option...
Page 37: ...Date Service Performed Company Name Tech Initials Company Address Phone...
Page 38: ...NOTES...
Page 39: ...Date Service Performed Company Name Tech Initials Company Address Phone...
Page 40: ...DUNKIRK BOILERS 2201 Dwyer Avenue Utica NY 13501 web site www ecrinternational com...
