Operation, Testing & maintenance, Wiring the a.c. input – IOTA ISL-28 User Manual

Page 3: Labels, Completing installation

Page 3

6. WIRING THE A.C. INPUT

A. The

ISL-28 and A.C. ballast must be on the same branch circuit.

B. The

ISL-28 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

ISL-28 is used with a switched fixture, the A.C. input to the ISL-28 must be connected ahead of the

fixture switch. Refer to Illustration 2 for switched and unswitched fixture wiring diagrams.

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

ISL-28 unit connector.

OPERATION

Normal Mode – A.C. power is present. The A.C. ballast operates the fluorescent lamp(s) as intended. The ISL-28 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 ISL-28 senses the A.C. power failure and automatically switches to the

Emergency Mode. One lamp is illuminated, at reduced output, for a minimum of 90 minutes. When the A.C. power is

restored, the

ISL-28 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

ISL-28 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, then conduct a short discharge test. Allow a 24 hour
charge before conducting a one hour test.
The

ISL-28 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

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.

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