Manual

Page 3
5. INSTALLING THE TEST SWITCH
The test switch should be mounted on the ballast channel cover of a recessed troffer, or on the side of a strip
fixture, preferably adjacent to the Charge Indicator. Drill or punch a ½″ mounting hole.
6. WIRING THE A.C. INPUT
A. The I-48 and A.C. ballast must be on the same branch circuit.
B. The I-48 requires an unswitched A.C. power source of either 120 or 277 volts. Select the proper voltage lead
and cap the unused lead.
C. When the I-48 is used with a switched fixture, the A.C. input to the I-48 must be connected ahead of the fixture
switch. Refer to Illustration 3 for switched and unswitched fixture wiring diagrams.
BLACK
A.C. BALLAST
HOT A.C. LINE
WHT
WHITE
(120V) BLK
(277V) ORG
TEST SWITCH
COMMON
Select proper voltage lead. Cap unused lead.
WHT/BLK
BLACK
A.C. BALLAST
HOT A.C. LINE
WHT
WHITE
(120V) BLK
(277V) ORG
TEST SWITCH
COMMON
Select proper voltage lead. Cap unused lead.
WHT/BLK
WALL SWITCH
➀
➀
➀
➀
Illustration 3 Switched Fixture Unswitched Fixture
I-48
I-48
7. LABELS
Attach the appropriate labels adjacent to the Test Switch and Charge Indicator. Annotate Re-lamping label for
lamp type and wattage. The Caution and the Re-lamping labels must be on the fixture in a readily visible location
to anyone attempting to service the fixture.
8. COMPLETING INSTALLATION
When the installation is complete, switch the A.C. power on and join the I-48 unit connector.
OPERATION
Normal Mode – A.C. power is present. The A.C. ballast operates the fluorescent lamp(s) as intended. The I-48 is in the
standby charging mode. The Charge Indicator will be lit providing a visual indication that the battery is being charged.
Emergency Mode – The A.C. power fails. The I-48 senses the A.C. power failure and automatically switches to the
Emergency Mode. One or two lamps are illuminated, at reduced output, for a minimum of 90 minutes. When the A.C.
power is restored, the I-48 switches the system back to the Normal Mode and resumes battery charging. See page 1 of
the Instruction Manual.
TESTING & MAINTENANCE
Pressing the Test Switch turns off the light on the Charge Indicator and forces the unit into emergency mode, inter-
rupting power to the designated A.C. ballast. The emergency lamp is now being lit by the I-48 unit. After releasing the
Test Switch, the fixture returns to normal operation after a momentary delay. To simulate a “BLACK OUT” use the
circuit breaker to turn off A.C. power.
Initial Testing – Allow the unit to charge approximately 1 hour, conduct a short discharge test. Allow a 24 hour charge
before conducting a one hour test.
The I-48 is a maintenance free unit, however, periodic inspection and testing is required. NFPA 101, Life Safety Code,
outlines the following schedule:
Monthly – Insure that the Charge Indicator light is illuminated. Conduct a 30 second discharge test by depressing the
Test Switch. One lamp should operate at reduced output.
Annually – Insure that the Charge Indicator light is illuminated. Conduct a full 1
1
/2 hour discharge test. The unit should
operate as intended for the duration of the test.
“Written records of testing shall be kept by the owner for inspection by the authority having jurisdiction.”
SERVICING SHOULD BE PERFORMED BY QUALIFIED PERSONNEL.
Contact Customer Service or visit www.iotaengineering.com for current warranty information.