MDE-4319A TopKAT Fuel Managment System Installation Manual · November 2005
Page 73
Mechanical PCU Option
7 – Mechanical PCU Option
Description
The Mechanical pump control unit (Mechanical PCU) option for the TopKAT allows the unit
to control fueling and gather information from up to eight mechanical hose outlets (4 per PCU,
with a maximum of two PCUs). The TopKAT with Mechanical PCU configuration is mounted
on top of a pedestal. PCUs can be mounted within the pedestal or wall-mounted.
• PCUs mounted within the pedestal require a larger square pedestal. When using pedestal-
mounted PCUs, all pump/dispenser wiring connections are made within the TopKAT
pedestal.
• Wall-mounted PCUs use a triangular pedestal. When using wall-mounted PCUs, all pump/
dispenser wiring connections are made within the wall-mounted PCUs.
The TopKAT with the Mechanical PCU option can also be used in a master/satellite
configuration.
The mechanical PCU includes two solid-state relays and one manual override switch per hose
outlet which control power to the fuel dispensing equipment. (Individual PCU power must be
present in order for the override switches to place the pump in MANUAL.) The TopKAT can
handle quantity pulsing rates of 1, 10, 100, 500, and 1000 per gallon measurement and 1, 10,
100 and 250 per liter measurement.
PCU Dimensions and Layouts
See the following figures for dimension and layout information:
• Figure 7-1: Pedestal Dimensions - Pedestal-Mounted PCU on page 74
• Figure 7-2: Pedestal Dimensions - Wall-Mounted PCU on page 75
• Figure 7-3: Wall-Mount PCU Dimensions on page 76
• Figure 7-4: Conduit Layout - Wall-Mounted PCU on page 77
• Figure 7-5: Conduit Layout - Pedestal PCU on page 78
