Toyotomi Laser 60AT Manual page 17

L A S E R
Section 2
2-13 FUEL TANK INSTALLATION
Fuel tank installation is illustrated (Figure 2-5). Since fuel
tank installation techniques vary from place to place
(ofter dependent upon applicable codes), a particular
installation procedure cannot be specified. However,
certain criteria govern the fuel hook-up of the heater.
Use the following check list as a guide to the fuel
storage facilities.
WARNING:
Use only ASTM D3699 1-K Kerosene
or ASTM D396 No. 1 Fuel Oil. Never
use gasoline, white gas, camp fuel or
other flammable liquids. Use of such
fuels can result in an explosive fire and
cause severe injury.
Fueling Options Available
Fueling of the Laser Heating Systems can be
accomplished in one of two ways:
1. Gravity-fed large capacity external tank:
Practical for large heating needs where bulk delivery
of fuel is available. This system should be installed
by a qualified plumber or fuel supply technician.
2. Large capacity external tank with pump (*):
For large heating needs where a gravity-fed system
is not practical, an electric pump (the fuel lifter
pump) may be used.
(*) The inlet pressure to the heater must not exceed
2.5 psi. Use a pressure reducing valve with a 2.5
psi max. rating.
To install a large capacity, gravity-fed external tank,
follow the instructions below. Use of a qualified installer
is recommended.
• Installation height of the bottom of the fuel tank
should be 16 inches (40 cm) or more above the
floor surface on which the heater stands. This
insures that inlet fuel pressure will be sufficient.
The top of the fuel tank should be no higher than
8-1/2 feet (2.6 m) above the floor under the
heater. This insures that inlet fuel pressure will
not be excessive.
H E A T I N G S Y S T E M S
• The horizontal length of piping should not
exceed 100 feel (30 m) and should be free of
sharp bends or obstructions.
• Piping should include no inverse U-type bends
(to avoid air locks, which could block the fuel
supply).
• A water block filter recommended for use on the
fuel line near tank, and a shutoff valve should
installed on the tank.
• Flare connections should be used at the fusible
link valve connection on the heater and at the
fuel filter to be installed at the tank.
• Use of a shutoff valve just before line enters
building will minimize fuel to be drained should
heater require service.
• If fuel line inside building is more than 3 ft. (90
cm), use another shutoff valve for the above
reason.
• The fuel tank should be located no closer than 6
feet (1.8 m) to a source of heat.
• The fuel tank should have an opening for filling
on the top and a vent with a weather-proof cap
on the side. On some tanks the vent and fill
spout use the same opening.
IMPORTANT:
Make sure that fuel line is free from
any particles from cutting the fuel
pipe. Otherwise it may cause trouble
in the fuel sump.
• 3/8" OD copper tubing should be used for fuel
line.
• External tank installation must comply with
National Fire Protection Association Code
NFPA31 or locally applicable codes. Check with
local building officials.
Installation
S E R V I C E M A N U A L 14