Form I-RA/D 140/235 (Version A), Page 10
Fuel Tank,
Pump, and
Supply Lines
General Requirements
Model RA/RAD 140 and RA/RAD 235 heaters are approved to burn
used crankcase oil, transmission fluid, and No. 2 fuel oil. Maximum
fuel input for a Model 140 is 1.0 GPH (4.5 L/H). Maximum fuel input
for a Model 235 is 1.7 GPH (7.7 L/H).
The oil supply tank and fuel lines must be installed in accordance
with the National Board of Fire Underwriters requirements and all
local ordinances. A UL-listed tank such as Reznor
®
Model OT-250 or
equivalent must be used.
In the U.S.
, regulations require that storage tanks located inside
buildings shall not exceed 275 gallons (1,041 L) individual capacity
or 550 gallons (2,082 L) aggregate capacity in one building.
In Canada
, regulations require storage tanks located inside buildings
shall not exceed 550 gallons (2,082 L) individual capacity or 1,100
gallons (4,164 L) aggregate in one building.
Check with the local Fire Marshall to assure compliance with local
ordinances and codes.
Installation of the tank and supply lines is
the responsibility of the installer.
Fuel Tank
CAUTION: It is recommended that used oil be at a
temperature of 50°F or higher when it enters the
pump. At a temperature below 50°F, oil becomes
more viscous and difficult to pump. The heater may
fire at a reduced rate and become erratic resulting
in nuisance shutdowns.
Install either a UL listed Reznor
®
Model OT-250 oil supply tank or a
field-supplied equivalent indoor storage tank.
• If installing a Model OT-250 tank, follow the installation re-
quirements and instructions on the tank.
• If installing a field-supplied tank, follow the manufacturer’s
instructions.
• Height from the pump to the bottom of the heater should be
no more than 15 ft (4.5M). The used oil supply line must be
3/8” o.d. and a maximum of 100 ft (30.5M) in length.
Although maximum height from the pump to the heater is 15 ft (4.5 M),
we recommend that ease of service be considered when determining
heater location. A service height of eight feet (2.5 M) is recommended.
See the illustrations on pages 12 and 13 for examples of tank and
line installation.
WARNINGS: Never pour gasoline or used oil con
-
taining gasoline into the supply tank. Adequate
ventilation must be provided in any enclosures
where storage tanks, pumps, or accessories are
installed.
Fuel Tank
