Gasboy 580 Series - Manual (Page 12)

Installation Foundation
Page 8 MDE-4766 Series 580 Installation/Operation/Parts Manual · April 2009
7 DO NOT install any underground piping without proper swing joints (always use shoulder
nipples, never close nipples).
8 DO NOT cover any lines, or UL and code approved flexible pipes approved for the fuels and
application, until they have been both air and liquid tested.
9 DO NOT back-fill the tank or supply line with cinders or ashes (back-fill with clean sand,
crushed rock, or pea gravel).
10 DO NOT use black iron pipe or fittings for underground installations (use only new
galvanized or fiberglass pipe and fittings).
Note: Install all fiberglass pipe and fittings according to manufacturer’s specifications and
requirements.
Foundation
When constructing the pump island for the dispensing equipment, ensure that you extend the
island excavation beyond the depth of the frost line. Leave open an area from the inside edge
of the unit’s base as shown on the specific base layout. Unless required by local regulations,
do not cement the pipes and conduits into the island. The open area within the base will
provide access for future servicing of the fittings and conduit assemblies. Fill in the boxed-in
section with dry sand to keep condensation in the pump housing to a minimum and to help
prevent fogging of the totalizer window.
Secure the pump to the island using anchor bolts through the two mounting holes, which are
indicated on each base layout. If the dispensing unit is not securely fastened to the island,
supply line leaks at unions and pipe joints may occur. Use one of two types of bolts to anchor
the pump to the island. Use two (2) 1/2-inch x 5-inch (13 mm x 125 mm) long machine bolts
embedded in the concrete or to meet minimum UL and API requirements for universal
interchangeability of pumps, use two 1/2-inch x 3-1/2-inch (13 mm x 90 mm) long lag screws
with 2-inch (51 mm) long expansion shields.
Suction Pump
If a pump is to be used with an above-ground tank, a pressure regulator valve (model 52) is
required on the suction side of the pump; consult your Gasboy representative for details. The
tank should be free of water and dirt. It is recommended that the tank be pressure-tested to
verify it is tight.
Note: The outlet fitting at the top of the float chamber should be connected to drain back to
the storage tank. The pipe size for the return line to the storage tank should be at least
3/8-inch (9.525 mm). Ensure that this line is not kinked or reduced in diameter.