combustion, which result from initial start-up, re-
ignition a9er a long ”o:” cycle, and inadequate or
infrequent cleaning, will be deposited within the
unit.
Every oil burner contains safety devices that are
designed to prevent unsafe operation. When the
burner is activated, fuel is pumped through the
nozzle in the presence of an ignition arc produced by
two electrodes and a high voltage transformer. In
order to prevent raw fuel from being discharged into
the combustion chamber should ignition fail to occur,
a CAD cell is employed to “proof” the Game. If the
CAD cell does not “see” a Game within a preset time
period, usually 20-30 seconds, a relay will shut down
the burner and it cannot a7empt to re- re until the
reset bu7on is pressed. When contamination from
the wood combustion process coats the CAD cell it
interferes with the proper functioning of this safety
device.
If the Wood Gun™ is properly cleaned and
maintained on a regular basis, then the adverse
e:ects described above are minimized. However,
neglect of the unit may result in disappointing
performance. It is recommended that in instances
where the owner intends to depend upon the oil
burner as the primary fuel source, that the oil burner
be cleaned and test red several times to verify that
the safety control system is not impaired. If wood is
the primary fuel source, with oil a seldom used
backup, Alternate Heating Systems strongly
recommends the unit be red on oil periodically to
assure that the oil burner will function when needed.
Do not
assume that a unit operated solely on
wood for an extended period of time will re on oil
without a7ention.
In all Wood Gun™ models, the dra9-inducing fan
increases the air velocity past the nozzle. Because of
this increased air velocity, the Burner Adjustment
Tables in the Riello manual are a good starting point
for initial ring of the burner; however, ne-tuning
of the burner se7ings is usually needed.
For proper burner adjustment a combination test
kit must be used. It is not likely that the CO2 levels
suggested in the burner manual can be achieved, but
the net stack temperature will be very low, yielding a
net e<ciency well in excess of 80 %. Refer to the
burner manual for information regarding wiring
logic and individual components of the burner.
GAS BURNER ASSEMBLY
Models E100 through E250
Refer to the Riello Burners Installation Manual
included with your shipment for instructions on
con guring the burner. Gas burners must be installed
utilizing manual switchover controls only.
e burner mounts to the Gange on the boiler
combustion chamber using three 3/8 in x 1½ in bolts
provided. Make sure the gasket provided with the
burner is placed between the Gange on the Wood
Gun™ and the mounting Gange of the gas burner.
Connect the burner according to the wiring diagram
included with your boiler or found in Appendix B:
Wiring Diagrams
For larger units consult the special instructions
provided in the supplement to this manual.
Before allowing gas that is under pressure into the
piping, all openings from which gas can escape
should be closed. Immediately a9er turning on the
- 17 -
Note: It is a good idea to test fire the oil burner
when weekly cleaning and maintenance is
performed.
The burner must be installed and
configured by a certified Gas Burner
Technician.
NOTE: The Riello gas burner has an air sensor
that senses airflow through the burner. When a
Riello gas burner is installed, then a variable
speed induction fan control may need to be a
necessary option.
Summary of Contents for wood gun E100 SF
Page 2: ......
Page 24: ...Photo Smoke flap installed 19 ...
Page 46: ...Steel Center Brick 8 Inch 41 ...
Page 49: ...Appendix A Boiler Specification Diagram 44 ...
Page 50: ... 45 ...
Page 51: ... 46 ...
Page 53: ...Appendix B Wiring Diagrams 48 ...
Page 54: ... 49 ...
Page 55: ... 50 ...
Page 56: ... 51 ...
Page 57: ... 52 ...
Page 58: ... 53 ...
Page 59: ... 54 ...
Page 60: ... 55 ...
Page 61: ...Appendix C Exploded Parts Drawings 56 ...
Page 63: ... 58 ...
Page 68: ...Appendix F Boiler Piping and Ducting Examples 63 ...