Instructions / Assembly

Page 8 of 11 Revised: 2016-05-17
3.6.1 Fill piping
Remove the dust plug from the plastic transition fitting of the Fill Pipe opening (see suggested connection
diagram). Connect fill pipe to tank in accordance with local codes using only a 2-in-1 metal adaptor as a
transition fitting ( P/N DWOT FPA).
Use Aluminum Compression Nut (P/N DWOT ACN ) to secure the threaded metal adaptor to the tank.
Make sure rubber gasket (P/N DWOT RG) is located between the threaded metal adaptor and the tank.
3.6.2 Vent piping
Remove the dust plug from the plastic transition fitting of the Vent Pipe opening (see suggested
connection diagram). Connect vent pipe to tank in accordance with local codes and do not reduce vent
capacity below 1-1/4 in NPS. Only vent alarms approved by the AHJ or a UL/ULC Listed whistle vent
shall be used in the tank before connection to the vent piping. GIL-FAB suggests using a vent alarm (P/N
DWOT VA) as a transition fitting.
Use Aluminum Compression Nut (P/N DWOT ACN ) to secure the vent alarm to the tank. Make sure
rubber gasket (P/N DWOT RG) is located between the vent alarm and the tank.
3.6.3 Oil Level Gauge
Remove the dust plug from the plastic transition fitting of the Oil Level Gauge opening (see suggested
connection diagram) and install gauge into one of the plastic adapters. Hand tightening is all that is
required to secure the gauge because it contains an “O” ring seal for the threaded connection.