Fuel Pump Logic - Deif GC-1F Installation Instructions Manual

GC-1F
The fuel pump logic is used in order to start and stop the fuel supply pump to maintain the fuel level
in the service tank at predefined levels. The start and stop limits are detected from the VDO 1
input.
Start level, factory setting at 20 % 6550 Fuel pump logic
Stop level, factory setting at 90 % 6550 Fuel pump logic

Start level, relay activates

Stop level, relay deactivates
Fuel level
90%
20%
Fuel pump start level
DEIF A/S
Installation Instructions and Reference Handbook

Fuel pump logic

Fuel service tank level
Fuel pump stop level
Time
Page 61 of 123