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INSTALLATION, OPERATION, AND MAINTENANCE
Testing
The day tank testing requires fuel transfer to lower the day tank level to check operating points.
Day tanks equipped with return flow pumps, may use the on-board pump for this fuel transfer.
Day Tanks without return flow pumps should be operated with a temporary pump to lower fuel
levels for testing.
Perform the testing procedure in accordance with the startup checklist.
Day Tank Startup and Test Checklist
Item
Description
1
Power to control panel
2
Power to return flow pump
3
Initial display is accurate
4
Critical low sensor input and display
5
Low level input and display
6
Pump start level input and display
7
Pump stop level input and display
8
High level input and display
9
Leak input and display
10
Manual mode fill inlet solenoid energize
11
Manual mode fill pump start
12
Manual mode fill disable on high level
13
Manual mode fill disable on estop
14
Manual mode return flow pump energize
15
Manual mode pump flow confirmed
16
Manual mode pump disable on estop
17
Auto mode fill start level inlet solenoid energize
18
Auto mode fill start level pump start
19
Auto mode fill start level disable on estop
20
Auto mode fill start level disable on high level
21
Auto mode fill start level disable on leak
22
Auto mode fill stop level inlet valve de-energize
23
Auto mode fill stop level pump stop
24
High level return pump start
25
High level return pump time out after clear
26
Confirm Output relay and horn on Alarm
27
Alarm modes: Leak, Low, Clow, High
Check
Date
Comments
Earthsafe M500
Generator Day Tank
EMERGENCY POWER FUEL SYSTEMS
11 of 15
earth safe
Fuel Systems for Critical Power
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