Viking Pump UDF400: DFO Start-UP Guide User Manual
Page 5
Viking Duplex Fuel Oil Package
Field Start-Up Guide
Bulletin:
Issue:
Page:
UDF400
2-Oct-06
4
9.
On the Control Panel, turn the “Hand-Off-Auto” selector switches to “Off” position for both
P1 and P2.
10.
Turn both the Main Disconnect “On-Off” switches to “ON” position (power on).
11.
Turn the “P1-Auto-P2” switch to “P1” position.
12.
Have some one observe the motor fan for the next operation.
13.
For P1 turn “Hand-Off-Auto” selector switch to “Hand” position and P1 will start.
14.
After approximate 3 seconds turn the “Hand-Off-Auto” selector switch for P1 back to “Off”
position.
15.
Confirm that the motor fan had spun in the proper rotation. If the motors are not rotating
properly have an electrician switch the motor leads and check again the rotation of the
motors.
16.
Repeat steps 11 to 15 for P2.
17.
Turn the four ball valves connected to the pressure gauges (suction & discharge gauges)
to the open position.
18.
For P1 turn “Hand-Off-Auto” selector switch to “Hand” position and P1 will start.
19.
Observe the suction compound gauge; it should start pulling a vacuum. The discharge
gauge will read 0 psi. Run P1 for no more than 2 minutes then turn it off. Place you hand
on the pump (around the seal area) and if it starts heating up, turn off the pump to prevent
mechanical seal failure.
20.
When the pumps are primed and pumping the discharge gauge will show a positive
pressure.
NOTE:
If the suction line is long you may have to refill the basket strainer again. Before this is done the
suction valves will have to be in the closed position, other wise the vacuum will be lost. Then alternate
running P1 and P2 in manual mode.
NOTE:
Some local codes specify a anti-siphon valve to be installed on the suction line. It is usually
installed close to the main supply tank. In some cases this valve will prevent the pumps from priming. If
the pumps don’t prime after a few attempts ask the contractor to loosen the spring in the anti-siphon valve
and then after the pumps are primed the spring can be set in order to meet local codes.
NOTE:
If the installation has a flooded suction, turn the suction and discharge valves to the open
position. The suction pressure gauge should show a positive pressure. If it doesn’t follow the suction line
to the supply tank and see if all the valves are open. If all the valves are open and the pressure gauges
don’t read a positive pressure there a blockage in the line. The blockage will have to be cleaned before
running the pumps.
VIKING PUMP, INC. • A Unit of IDEX Corporation • Cedar Falls, IA 50613 USA
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