
Sec1:8
CHAPTER 2
INSTALLATION
supply entrance and pass through the return line and on to
the tank. Metered oil is pumped (by the metering pump) to
the common port of a 3-way valve. With the 3-way valve
de-energized, the metered oil returns to the tank through
the back pressure valve and return line. When the 3-way
valve is energized, metered oil is passed on to the burner
oil nozzle and atomized by air from the compressor. The
proper strainers, check valves, vacuum and pressure
gauges, etc. should be installed as indicated. All lines
should be pressure tested after installation.
F. CIRCULATING OIL PUMP
A circulating oil pump is required to deliver fuel oil from
the storage tank to the burner at a minimum of 150% of
the maximum burner ring rate. The excess oil allows a
margin for piping error, viscosity changes in the fuel oil,
and circulating pump wear. Correct pipe sizing is deter-
mined by circulating rate , not burner capacity. Install the
pump as close to the supply tanks as possible. Suction lift
should be as low as possible. Maximum suction of 15" Hg
vacuum is good practice for either light or heated heavy
oil. The strainer should be installed in the suction line just
ahead of the circulating pump to prevent foreign material
from entering the pump. Locate the strainer so it may be
easily cleaned.
G. OIL PRESSURE REGULATOR
An oil pressure regulator should be installed in the sup-
ply line, close to the burner to regulate oil pressure. Oil
pressure is 50 to 70 PSI to the metering valve.
H. GAS PIPING
Refer to Figures, 2-6 for typical gas piping schemat-
ics.
Gas service and house piping must supply the quantity
of gas demanded by the unit at the pressure required at
the burner gas train inlet. All piping must be in strict accor-
dance with applicable codes, ordinances and regulations of
the supplying utility. In the absence of other codes, piping
should be in accordance with the following standards:
"National Fuel Gas Code" NFPA No. 54, ANSI No. Z 223.1.
(for Canada: the Canadian Gas Association (CGA) B149
and Canadian Standards Association (CSA) B140 codes
shall prevail)
Gas train components upstream of the buttery valve
are shipped loose. These components should be mounted
by the installer as close to the buttery valve as practical.
Normally, the control train is ordered to suit a particular code
A. APPLICATION
Electrical power available is usually 230/460 volt, 3
phase, 60 cycle, or 380 volt, 3 phase, 50 cycle. Control
circuit is 115 volt, single phase, 60 cycle or 115 volt, single
phase, 50 cycle. Refer to the electrical schematic diagram
shipped with the burner. Power connections are made at
the control panel. The burner is furnished with a burner
mounted junction box and remote control panel. Wiring
from the burner junction box to remote panel, panel to boiler
controls, low water controls, remote compressor motor and
remotely located fuel valves is furnished by the installer.
B. INSTALLATION
Locate the burner properly. The burner is designed for
operation with the blast tube level. Do not tilt burner up or
excessively downward. Installation of the refractory oven
or combustion cone, shipped with the burner, is shown in
Figures 2-1 and 2-2. Securely support the burner pedestal
on the oor or foundation. Allow enough clearance at the
rear of the burner to allow the housing to swing open for
service and maintenance. The face of the boiler and burner
ange must be sealed with the gasket provided with the
burner. Carefully place the gasket over the dry oven bolts
before it is mounted onto the burner ange. The I.D. of
the dry oven and burner blast tube are concentric. Due to
bolt hole tolerances, the dry oven may have to be shifted
to accomplish this. After the dry oven nuts are properly
tightened, the burner and dry oven assembly can then be
mounted into the boiler.
C. PACKING PLASTIC REFRACTORY
AROUND OVEN
The area between the outside circumference of the dry
oven and existing refractory should be packed with Kaiser
Refractory Mono T-9 Airset or equal within two hours after
coating the dry oven with Trowleze. From inside the furnace,
ram plastic refractory from the front to the rear parallel to
outside surface of the dry oven.
D. SEPARATE COMPRESSOR MODULE
For oil burners supplied with the separate compressor
module, piping to the burner is installed as shown in Figure
2-4. Copper tubing for the installation is not supplied with
the burner.
E. TYPICAL OIL SUPPLY LOOP
Continuous oil circulation must be supplied to the burner
at a rate of 50 percent greater than the high-re burning
rate. The oil circulating pump should be located as close as
possible to the storage tank to keep suction lines short and
minimize suction loss. Note that the supply line is higher
above the burner metering pump inlet to help eliminate air
problems. The return line to the tank is connected at the
discharge port of the 3-way valve. Note that the return line
should be a minimum of 20 inches higher than the supply
line. Since air rises to the highest point, it will rise from the
CAUTION
IT IS IMPORTANT THAT YOU PROVIDE
SUPPORT FOR THE HOUSING
WHEN IN THE OPEN POSITION TO
PREVENT DAMAGE TO THE HINGES
AND SUBSEQUENT COMPONENTS.