motor for Class I, Division l, Group D hazardous locations as
defined in NFPA 70. Each pump shall have delivery capacity of
[_____] liter per second gpm at a total discharge head of [_____]
kPa feet Maximum delivery rate at each dispensing unit shall be
0.76 liter per second 12 gpm with one nozzle flowing. Minimum
delivery rate at each dispensing unit shall be 1.50 liter per
second 24 gpm with two nozzles flowing. Multiple outlet single
pump fuel discharge pipeline shall hold pressure of 21 to 34 kPa 3
to 5 psi utilizing back pressure and check relief valves. Install
on discharge side of each pump, an approved leak detection device
which will provide indication when piping between tank-mounted
pump and dispensers are not liquid-tight. Pump inlet shall be
horizontal. Provide clearance of not less than 127 mm 5 inches
nor more than 178 mm 7 inches between bottom of tank and end of
pump.]
[Provide internal gear-type rotary suction pumps with adjustable
bypass valves and suction strainers.]
l.
Motors: Each motor shall be sized to start and drive equipment at
specified capacity and duty cycle without exceeding nameplate
rating of motor when operating at proper electrical system
voltage. Installation of electrical equipment at dispensers,
motors, and pump starter controllers shall be in compliance with
Class l, Group D hazardous location.
2.6.2
Management Control System
Provide management control system which furnish computerized control of
station fuel dispensing system including operational, control, and
management functions from a central control console with displays and
separately mounted electronics and data cabinets. Provide functions to
provide receipt and report printout types. Each system shall provide the
following:
2.6.2.1
Operating Functions
Operate up to [_____] fueling positions with up to [_____] different
products. Operate prepay on preset volume or dollar operation with cash or
credit pricing. Include two tier pricing with two levels in each tier.
Display grade, dispenser number, volume, and sales amount in one sequence.
Provide audible signals and flashing indicators to alert operator to
customer needs and dispenser status. Provide functions to calculate change
if tank is too full to accept prepaid amount.
2.6.2.2
Control and Management Functions
Accumulate, store, and deliver full range of management information
including pricing by grades and types of service. Provide totals for up to
four shifts by product volume, cash and credit sales, and declining balance
inventory.
2.6.2.3
Provide the following:
a.
Indicators:
Call, ready, in-use, used, stopped, unpaid
b.
Manager's keyswitch:
Key protection for setting operating modes
SECTION 15193N
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