International Thermal Research Diesel and AC Heating System for Recreational Vehicles and Yachts, Installation And Operating Manual, Page: 30 / 80

Section 4, Installing the Fuel System
recommended size for the fuel line is ¼” I.D. The fuel return line
should return to the fuel supply tank.
The following is recommended for the fuel system installation:
The fuel supply from the fuel storage tank to the fuel inlet must be
from a dedicated fuel pickup on the top of the tank.
NOTICE
• The fuel supply line should be installed with minimal rise from
the fuel tank. The total rise from the bottom of the pickup
tube to the fuel inlet on the Oasis™ should not exceed 60”.
There are no minimum clearance requirements between the
fuel tank and the Oasis™ .
The fuel line must be run and secured so as to prevent damage,
chafing and kinking during normal operation.
! CAUTION
• All fuel line connection points and hoses must use suitable
clamps and/or sealant and must be checked for leaks on the
initial installation and also periodically as part of normal
maintenance.
• A primary, UL and/or CSA approved fuel oil filter (not
provided) must be installed inline in the fuel supply hose,
between the tank and the Oasis™ Heating Module, in a
manner that ensures easy access for maintenance. A
secondary fuel filter is mounted inside the Heating Module
case. Both filters must be inspected and replaced as required
as part of normal maintenance.
• Fuel line hose used must be appropriate for your
requirements. It is strongly recommended that the hoses
have permanently installed end fittings.
4.3 What NOT to Do
• Don’t allow the fuel or the fuel lines to become contaminated
with foreign material.
• Don’t allow the fuel lines to become damaged or constricted.
4-2 The Oasis™ Heating Module