Avtron LPV600 - Page 20

Operation
Avtron Resistive Load Bank - Part Number LPV600 994210
4-3
switches. If at any time, there is insufficient cooling air to the elements, this safety switch
will drop out the load and the red BLOWER FAIL lamp will light.
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C A U T I O N
The operation of the fan is vital to the safe operation of this Load
Bank. When the BLOWER START pushbutton is depressed, the
BLOWER FAIL light will come on momentarily until the blower
accelerates up to its operating speed, at which time the light will go
off. If the air switch prevents the load from being applied, do not
bypass this switch. If the BLOWER FAIL light stays on for more
than a few seconds, shut down the Load Bank and do not operate the
unit until the problem is corrected. (Refer to Section I, SAFETY
CONSIDERATIONS, of this manual.)
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8. The resistive loading is selected by toggle switches, using any one or combination of toggle
switches to make up a given load.
9. By placing the MASTER LOAD switch to the ON position, the preselected load will be
applied to the power source.
10. Any KW LOAD switch can be added or removed as required while the MASTER LOAD
switch is closed (ON).
11. Monitor the unit under test using the digital meters.
12. To remove load, move MASTER LOAD switch to OFF position.
13. Shutdown: Reverse steps 1 through 12. It is good procedure to allow the fan motor to
operate for about 5 minutes after the load is removed. This will exhaust any accumulated
heat and allow exhaust surfaces to cool. Although not required for maintaining Load Bank
integrity, the cooling procedure helps to prevent burn injuries.