10
X BURNER AND CONTROLS
A) Burner Installations
Packaged boilers are shipped with the burner installed and prewired. Boilers that are shipped knocked-
down must be field assembled. Follow the procedures listed below to install and connect the burner.
1. Remove the burner parts and instructions from the carton.
2. Referring to specifications at the back of the manual, check to see that the burner model and size match
the boiler model.
3. Make sure the correct nozzle is in place and is tightly sealed.
4. Check the electrode position and set the air intake as indicated in the burner manual.
5. The burner is installed with a mounting flange. The end of the burner air tube should be 1/4" from the
inside surface of the front wall of the combustion chamber.
6. Make the electrical connections as shown in the wiring diagram in this manual and in the control man-
ufacturers installation manual. All wiring must be done in accordance with the local electrical code.
7. For units installed in Maine, New Jersey and New York, a low-water cutoff is required on all hot water
boilers. See the low water cutoff manufacturers installation manual for wiring instructions.
B) Oil Primary Control - Chimney Vent (Non Post Purge Control)
The oil primary control with the solid state flame sensing circuit provides automatic, non-recycling con-
trol of oil burners. When used with the cadmium sulfide flame detector, the control will automatically
control the oil heating system.
The primary control will stop the oil burner within a predetermined number of seconds if the fuel fails to
ignite or if the flame goes out during operation. The oil burner will remain off until the reset button on
the relay has been pushed.
THE RESET MUST NEVER BE PRESSED MORE THAN ONCE DUR-
ING A SINGLE FLAME FAILURE.
C) Oil Primary Control - Direct Vent (Post Purge Control)
The oil primary control with the solid state flame sensing circuit provides interrupted ignition. Used in
conjunction with a cadmium sulfide flame detector, the control will automatically control the oil burner.
The primary control will stop the oil burner within a predetermined number of seconds if the fuel fails to
ignite or if the flame goes out during operation. The oil burner will remain off until the reset button on
the relay has been pushed.
THE RESET MUST NEVER BE PRESSED MORE THAN ONCE DUR-
ING A SINGLE FLAME FAILURE.
Post-purge is provided to ensure that the boiler fires at maximum efficiency and dependability through-
out the heating season.
Post-purge of the oil burner is controlled through the electronic circuitry supplied. Post-purge timing is
variable. The factory set post-purge timing is at approximately one minute. It is recommended that it be
left at this setting. In no case should the post purge timing be reduced to less than 1 minute.
Length of Vent Kit
Minimum Post Purge Time
0 - 10 Feet
1 Minute
10.1 - 15 Feet
1 Minute
15.1 - 20 Feet
2 Minutes
