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FAN FAILURE WARNING INDICATOR AND ALARM : If forced air cooling is
stopped due to failure of any one or both the fans, the red " TEMP. FAULT " LED will
be illuminated and an alarm buzzer will be activated. The unit is required to be
switched off immediately as loss of forced air cooling may result in major damage to
the unit.
INSTALLATION AND OPERATION
1.
Ensure that the space where the unit is to be installed has adequate air supply
for cooling. There should be no obstruction on the suction side of the fans at the
sides or on the discharge side vent holes on the back of the unit.
2.
Switch off the on/off switch on the front panel.
3.
Switch off all the D.C. load(s) to be connected to this unit.
4.
Connect the Load+ and Load- at the back of the unit to the D.C. load(s) or the
DC bus. Ensure the wire or bus bar used to connect the load or the D.C. bus is
of proper cross-section to carry the desired load current. Tighten the screws to
ensure firm connection.
5.
In case external battery is required for battery back-up, connect the positive of
the battery to Battery+ and negative of the battery to Battery-. (See details under
"operation of the battery back-up")
6.
Plug the unit into the 120 V, 60 Hz standard AC outlet . The outlet should be
rated at 30A for SEC2450BRM, 20A for SEC-2440BRM and 20/15A for SEC-
2430BRM.
7.
Switch on the unit by pressing the power on/off switch to on position. The switch
will be illuminated confirming that input power is available.
8.
A short beep may be generated by the temperature fault alarm circuit on power-
ing on the unit . This is normal. Please disregard.
9.
Switch the volt/amp change-over switch to the "VOLT" position. The voltmeter
should read 27.8 V on no load (Please see explanation on Page 7)
10. Switch on the D.C. loads. The output voltage should be 27.6 V nominal (Please
see explanation on Page 7)
11. Switch the volt/amp meter switch to "AMP" position to read the load current.
Ensure that the load current is within the total rated continuous load of the mod-
ules installed.
6.
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