IOTA I-420-EM-B - Manual (Page 3)

Page 3
(120V) BLK
(277V) ORG
(120V) BLK
(277V) ORG
A.C. BALLAST
HOT A.C. LINE
WHITE
BLACK
COMMON
WHT/RED WHT
(+) RED/BLK
OR RED
(+) RED
TBTS
WHITE
BLK/ORG OR BLK/BRN
BLK/ORG OR BLK/BRN
A.C. BALLAST
HOT A.C. LINE
WHITE
BLACK
COMMON
WHT/RED WHT
(+) RED/BLK
OR RED
(+) RED
TBTS
BLK/ORG OR BLK/BRN
WHITE
WALL SWITCH
BLK/ORG OR BLK/BRN
No polarity on BLK/ORG Lead. Use either lead for
connection to the AC circuit and ballast
Select proper voltage lead. Cap unused lead.
No polarity on BLK/ORG Lead. Use either lead for
connection to the AC circuit and ballast
Select proper voltage lead. Cap unused lead.
Illustration 3
OPERATION
Normal Mode – A.C. power is present. The A.C. ballast operates the fluorescent lamp(s) as intended. The I-420-EM-B
is in the standby charging mode. The TBTS will be lit providing a visual indication that the battery is being charged.
Emergency Mode – The A.C. power fails. The I-420-EM-B senses the A.C. power failure and automatically switches
to the Emergency Mode. One lamp or two lamps are illuminated, at reduced output, for a minimum of 90 minutes.
When the A.C. power is restored, the I-420-EM-B switches the system back to the Normal Mode and resumes battery
charging. See page 1 of the Instruction Manual.
TESTING & MAINTENANCE
Pressing the TBTS turns off the light on the TBTS and forces the unit into emergency mode, interrupting power to the
designated A.C. ballast. The emergency lamp is now being lit by the I-420-EM-B unit. After releasing the TBTS, 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, then conduct a short discharge test by depressing the
TBTS. The TBTS light will go out and the fluorescent tube will be illuminated. When the I-420-EM-B is used in fixtures
with more than one A.C. ballast, the second A.C. ballast is NOT de-energized with the test switch. It may, therefore, be
advisable to switch the A.C. fixture power off prior to depressing the test switch. Allow a 24 hour charge before conduct-
ing a one hour test.
The
I-420-EM-B 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 TBTS light is illuminated. Conduct a 30 second discharge test by depressing the TBTS. One
lamp should operate at reduced output.
Annually – Insure that the TBTS light is illuminated. Conduct a full 1½ 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.
Consult Customer Service or visit www.iotaengineering.com for current warranty information.
I-420-
EM-B
SEPARATE
BRANCH
CIRCUIT:
B. Unswitched Fixture
C. Switched Fixture D. Unswitched Fixture
A. Switched Fixture SAME
BRANCH
CIRCUIT:
Select proper
voltage lead. Cap
unused lead. 1
I-420-
EM-B
A.C. BALLAST
HOT A.C. LINE
WHITE
BLACK
(120V) BLK
(277V) ORG
COMMON
WHT/RED WHT
(+) RED/BLK
OR RED
(+) RED
TBTS
BLK/ORG OR BLK/BRN
WHITE
WALL SWITCH
BLK/ORG OR BLK/BRN
EM CIRCUIT HOT
A.C. BALLAST
HOT A.C. LINE
WHITE
BLACK
(120V) BLK
(277V) ORG
COMMON
WHT/RED WHT
(+) RED/BLK
OR RED
(+) RED
TBTS
WHITE
BLK/ORG OR BLK/BRN
BLK/ORG OR BLK/BRN
EM CIRCUIT HOT
Select proper voltage lead. Cap unused lead.
No polarity on BLK/ORG Lead. Use either lead for
connection to the AC circuit and ballast
Select proper voltage lead. Cap unused lead.
No polarity on BLK/ORG Lead. Use either lead for
connection to the AC circuit and ballast
I-420-
EM-B I-420-
EM-B
No polarity on
BLK/ORg Lead.
use either lead for
connection to the
A.C. circuit and
ballast. 2
Select proper
voltage lead. Cap
unused lead. 1
No polarity on
BLK/ORg Lead.
use either lead for
connection to the
A.C. circuit and
ballast. 2