Gasboy CFN Islander II - Manual (Page 15)

CFN Series System
2-4 03/07/03
PUMP CONTROL UNIT (PCU) (OPTIONAL)
Description
The pump control unit (PCU) controls most mechanical pumps and some electronic pumps. The
unit is controlled by a microprocessor and communicates to the Islander via the RS-485 loop.
Each pump control unit can control up to four pumps or remote dispensers.
Hardware features include a battery backup for Weights and Measures requirements, three solid
state relays for each pump or remote dispenser (slow flow, fast flow and pump), manual override
switches, and diagnostic capabilities. Field wiring connections are made to the unit via easy-to-
wire terminal blocks.
Pump control units, can be accommodated within the pedestal of the Islander (a standard pedestal
can accommodate two pump control units, a receipt printer pedestal can accommodate only one),
can be remote from the Islander (wall-mount), or can be a standalone unit located on the island.
Location
The pedestal version of the pump control unit is located within the Islander. The wall mount
version of the pump control unit must be located in an area protected from direct contact with
weather. The standalone version is located on the island. Do not install over a hazardous
location. All pump control units are designed for an operating temperature of -40
o F to 104 o F with
a relative humidity of 2% to 99% non-condensing.