Avtron 1035409, Руководство пользователя

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Installation
Avtron Outdoor Load Bank • Part Number K875A 1035409
3-3
4. Energize the source of control power only:
A. Check the control voltage and confirm it is within 10% of the required voltage.
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W A R N I N G
Control power is present on terminal block in steps 4 through 6.
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B. Operate the safety circuitry with a jumper across the air switch contact at its
termination at the terminal block.
5.
Verify the proper relays energize with each individual load switch.
A. Turn on each load step individually and observe that each relay or relays pulls in
without chatter or hesitation.
B.
Turn off the master load switch. Turn on all the load steps. Turn the master load on
and observe the pull in of all the contactors. If chatter or hesitation is observed,
locate the cause of the voltage drop causing the problem.
6.
While the load relays are energized, remove the jumper across the air switch. All the load
contactors should drop out after a delay of 5 seconds.
Leave the jumper off the air
switch(es).
7.
Apply the rated fan voltage. Start fans/blowers and verify that air is exiting the resistor
assembly end (top).
The air switches must be checked and/or field adjusted. This adjustment must be made after
installation and during full operation of any supplemental equipment, which may influence the air-
handling system. Follow these steps to verify and/or adjust:
A. Stop fan(s)/blower(s) and remove all sources of power from the Load Bank.
B.
Remove the front access panel to gain entry to the control area.
C.
Verify each air switch individually by removing the control wiring from the switch
terminals.