Instructions / Assembly

Page 9 of 11 Revised: 2016-05-17
GIL-FAB strongly suggests using Tank Level Indicator P/N DWOT 190GA for Model 190 Gal and P/N
DOWT 265GA for Model 265 Gal. It is also strongly suggested that the gauges be located at the opposite
end of the oil supply line to prevent both device mechanisms from becoming entangled during operation.
Use Aluminum Compression Nut (P/N DWOT ACN ) to secure the gauge to the tank. Make sure rubber
gasket (P/N DWOT RG) is located between the gauge and the tank.
3.6.4 Oil Supply
Remove the dust plug from the plastic transition fitting of the Fuel Supply opening (see suggested
connection diagram). Connect the withdrawal pipe in accordance with local codes using a duplex
bushing for copper tubing.
• P/N DWOT DB3/8 for 3/8-in copper tubing
• P/N DWOT DB1/2 for ½-in copper tubing
The duplex bushings are supplied with slip-through compression fittings. Flared fittings are
recommended for all joints in fuel oil lines to ensure proper vacuum seal. Install the suction line to
terminate 1 in (2.5 cm) above the bottom of the tank. If a return line is also used, it should be terminated
at the same level as the suction line.
Use Aluminum Compression Nut (P/N DWOT ACN ) to secure the duplex bushing to the tank. Make sure
rubber gasket (P/N DWOT RG) is located between the duplex bushing and the tank.
Local regulations and good piping practices may require the installation of accessory items in the supply
line, such as fire valves, check valves, filters, etc. It is the installer’s responsibility to comply with these
regulations and practices.