Operation - Graco 25V482 Instructions Manual

Operation

Air control solenoid valves are operated automatically
by the Fluid Defender on a channel specific basis. The
air control solenoid valve is energized when the Fluid
Defender is in active monitoring mode. When the Fluid
Defender senses an alarm condition in a specific
channel, the air control solenoid is de-energized and
closes the air supply to the connected equipment.
Air Control Solenoid Valve Manual Override
Only use manual override for system setup, or when
instructed by Graco for troubleshooting. Always set the
mode of operation back to the normal operating
position.
NOTE:
Ensure that all air control solenoid valves are not in
the override mode. Air control solenoid valves in
override mode are unable to control downstream
equipment.
Develop on-site tank fill procedures to prevent
accidental overfills.
Test the alarms before any remote bulk fill is
performed.
Determine and verify that there is sufficient volume
available in the tank before transfer. Verify capacity
before filling any tank.
Test the complete installed system to verify correct
installation.
Follow maintenance requirements and perform
periodic system maintenance.
The blue manual override switch turns on the air to the
downstream connected equipment and allows the
equipment to function for troubleshooting and testing
purposes only.
To set the blue manual override switch:
1. Insert a small, flat screwdriver into the slot of the
blue manual override switch screw (F
2. Rotate the blue manual override switch screw
clockwise 1/4 turn.
3A7280A
Do not turn the blue manual override switch screw
more than a 1/4 turn. Overturning the screw could
cause it to break, rendering the unit inoperable.
3. After performing system testing or troubleshooting,
reset the blue manual override switch screw to the
normal operation position. Insert a small, flat
screwdriver in the slotted opening and turn the blue
manual override switch screw counterclockwise
back to the original position (F
F . 5: Override Position
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. 5).
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F . 6: Normal Operation Position
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Operation
NOTICE
. 6).
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