DWOT Fuel Oil Storage Tanks LICENSED INSTALLER INSTRUCTIONS For Single Tank Installations IMPORTANT INFORMATION – FOLLOW ALL INSTRUCTIONS ABOVEGROUND NONMETALLIC TANK FOR FUEL OIL AND OTHER COMBUSTIBLE LIQUIDS Contact Info: GIL-FAB Tanks International 1429 De la Gare Mascouche, QC, Canada J7K 3G6 Website: www.ats-tanks.
Table of contents 1. 2. 3. Scope ............................................................................................................................................... 3 General Warnings ............................................................................................................................. 3 Technical Installation Instructions ..................................................................................................... 4 3.1 General Information .......................
1. Scope These guidelines cover nonmetallic CLOSED SECONDARY CONTAINMENT TANKS WITH SUPPORT (CANADA) AND DIKED TANKS WITH SUPPORT (USA) of rectangular shape, with a capacity ranging from 720 to 1000 Liters (158 Imp. Gal.to 220 Imp. Gal.) (190 USG to 264 USG). 2. General Warnings Please read and observe these warnings! Failure to comply may void the tank warranty! • DWOT Oil Storage Tanks must be installed by a licensed installer and the tank(s) must be installed according to these instructions.
3. Technical Installation Instructions 3.1 General Information CAUTION! These tanks must be installed in accordance with these instructions and in accordance with CAN/CSAB139, Installation Code for Oil-Burning Equipment (Canada) or NFPA-31, Standard for the Installation of Oil-Burner Fuels and Other combustible Liquids (USA) and in compliance with any applicable local codes or regulations. Do not transfer oil from the old tank into this tank. 3.
3.3.2 Package Components All DWOT tanks are supplied with the following components: Notes PLEASE ENSURE THAT ALL ITEMS INDICATED ABOVE HAVE BEEN INCLUDED WITH THE TANK BEFORE STARTING THE INSTALLATION. THE LEAK ALARM MUST NOT INDICATE AN ALARM CONDITION UPON RECEIPT OF THE TANK. If an alarm condition is present, contact the licensed installer.
3.4 General Installation Instructions The applicable Authority Having Jurisdiction (AHJ) should be consulted prior to the tank installation. The installer shall ensure that the applicable Federal, Provincial, State and Local Codes are met prior to installation. In most jurisdictions, installation by a technician recognized by the AHJ is mandated. Do-it-yourself installations are prohibited and will void warranty.
3.6 Piping Connections Do not put excessive stress on the tank or fittings during the installation. Bending of the pipe beyond 15° during assembly or putting excessive stress or distortion on the transition fitting is not allowed. Caution! The compression nuts are factory installed to the required minimum torque of 30 ft-lb (40 N-m) to prevent leakage and shall not be removed. The 30 ft-lb (40 N-m) torque value represents good hand tightening.
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.
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.
3.7 Tank cover installation – Outside Installation ONLY Tanks installed outside must be installed with GIL-FAB Cover Assembly (P/N DWOT RC) with the fill, vent and gauge located inside the cover. After unpacking, each cover shall be visually inspected for “unacceptable damage”. “Unacceptable damage” is defined as cuts, dents or permanent deformation of the structure which could cause leakage, excessive corrosion, or other mechanical and safety hazards. Minor deformation and dents are acceptable.
3.12 Maintenance instructions Regularly inspect the oil tank, oil lines, fill and vent pipes for leaks and repair or replace, as required, using only the original manufacturer’s parts. A good practice is always checking for oil residue on the floor or underneath the oil tank and oil-carrying parts (fittings, lines, etc.). If oil residue is found, investigate the source immediately. Always keep the area around the oil storage tank as clean as possible.
