Maxon OVENPAK 400 Installation Instructions Manual

"400", "200" OVENPAK
General Instructions
Important: Do not discard packing material until
all loose items are accounted for.
To prevent damage in transit, the spark ignitor,
discharge sleeve, mounting gaskets, flame rod and
connecting linkage components may be packed
separately and shipped loose with your new Maxon
®
OVENPAK Burner.
The burner itself is normally only a part of your
complete combustion system. Additional pipe train
accessories and control components will be required
for a complete system installation. The sketch below
shows a typical gas train as might be used with
®
OVENPAK gas fired burners.
Piping Layout as sometimes required by
insurance and standards groups
Block and Bleed gas train arrangement illustrated
with Model "400" OVENPAK
Model "400" OVENPAK
supply (except for EB versions, which require a
separate combustion air blower). They also serve as
a fuel flow control and fuel/air mixing device. Model
"200" OVENPAK ® Burners serve as a mixing device
and usually have an externally-mounted gas control
valve.
Burner should not be exposed to direct radiant
heat or positioned where it might draw in inert gases.
If such conditions exist, consider filters, relocation
and/or use of the EB version and external air supply.
Electrical service must match the voltage, phase
and cycle of all electrical system components and be
4/98
Maxon practices a policy of continuous product improvement. It reserves the right to alter specifications without prior notice.
INDUSTRIAL COMBUSTION EQUIPMENT AND VALVES
®
Burners
Installation Instructions
®
Burner
®
Burners provide the air
Page 2100-S-1
compatible with burner nameplate ratings. Insure that
all normal control safeguards are satisfied. Combus-
tion air blower should continue to run after shutdown
to allow burner to cool.
Gas supply piping must be large enough to
maintain the required fuel pressures cataloged for the
particular burner size used with burner operating at
full rated capacity.
Anything more than minimal distance or piping
turns may necessitate oversizing piping runs to keep
pressure drops within acceptable ranges.
Inlet pipe leading to any burner should be at least
four pipe diameters in length. If multiple burners are
fed from a single gas train, care should be taken to
minimize pressure drop and give maximum uniformity.
Clean fuel lines are essential to prevent blockage
of pipe train components or burner gas ports.
Main Shut-Off Cock should be upstream of both
the main gas regulator and pilot line take-off. Use it to
shut off fuel to both pilot and main burner during shut-
down periods of more than a few hours.
The fuel throttling valve contained within a Maxon
burner is not intended for tight shut-off.
Main gas regulator is essential to maintain a
uniform system supply pressure. If one pipe train
supplies multiple burners, provide a separate regula-
tor in the branch leading to each burner system.
Size the regulator for full system capacity at the
required pressure, carefully considering pipe train
losses. Follow the instructions attached to the regula-
tor during installation and be sure to remove any
shipping pin or block.
Pilot take-off should be upstream of the main gas
regulator, but downstream of the main gas cock. It
should normally include its own pilot gas regulator, a
solenoid valve and shut-off cock. A pilot adjustable
orifice at the pilot inlet simplifies adjustment.
Pilot piping must be large enough to provide for
the full flow and pressures shown in the catalog for
your particular burner size.
Fuel Shut-Off Valves (when properly connected to
a control system) shut the fuel supply off when a
hazardous operating condition is sensed. Manual
reset valves require operator attendance each time
the system is started up (or restarted after a trip-out).
Motorized shut-off valves permit automatic start-
restart when used with an appropriate control system.
Test connections are essential for burner adjust-
ment. They should be provided immediately down-
stream of the regulator and are included in the burner
itself. Test connections must be plugged except
when readings are being taken.
m
CORPORATION
MUNCIE, INDIANA, USA