IOTA IIS-375-LED - Manual (Page 4)

Page 4 Rev. 1413
68375-001
B. Operate the Test Switch for approximately 10 seconds. Observe that any emergency fixtures do not go out, that
the Inverter On (Green) Indicator comes on, and that any normally off fixtures come on.
C. Release the Test Switch. Normally Off fixtures and the Inverter On (Green) Indicator will extinguish. Normally
On, emergency, and any switched fixtures will return to their normal operating mode.
D. Reinstall the front cover using all the original hardware.
E. Affix red “EMERGENCY CIRCUIT” label (provided) to the panelboard dead front cover near the circuit breaker
feeding the IIS-375-LED.
3. OPERATION
Normal Mode - AC power is present and operates the fixtures as intended. The IIS-375-LED is in the standby charg-
ing mode. The Ready (Yellow) Indicator will be lit providing a visual indication that the unit is in Standby Mode.
Emergency Mode - The AC power fails. The IIS-375-LED senses the AC power failure and automatically switches to
the Emergency Mode. All fixtures, including Normally Off or switched off fixtures, connected to the
IIS-375-LED will
be illuminated for a minimum of 90 minutes. When the AC power is restored, the IIS-375-LED switches the system
back to the Normal Mode and resumes battery charging. See page 1 of the instruction manual for important opera-
tional safeguards and requirements.
Resetting the Circuit Breaker - Should the unit experience an overload situation or a short circuit the breaker will
trip. Before resetting the breaker insure that all wiring is correct, the load side of the inverter must be isolated from all
other power sources. Verify that the load does not exceed the rated capacity of the inverter.
4. TESTING
1) To test the equipment, depress the test switch. The Ready (Yellow) Indicator will go off. The designated fixtures will
either illuminate if they were off or will stay on if they were normally illuminated. The Inverter On (Green) Indicator
will come on.
2) Release the Test Switch. The Ready (Yellow) Indicator will come on. Normally Off emergency fixtures will extinguish.
The equipment is supplied with an automatic solid state charger designed to fully recharge the battery within 72
hours after AC power is restored, and then maintain the battery in a fully charged state. Allow the battery to charge
for a minimum of 72 hours after installation or power failure before conducting a 90 minute discharge test. The Life
Safety Code and the Authorities Having Jurisdiction require that this test be performed on an annual basis.
5. MAINTENANCE
1. CAUTION: Always follow proper shutdown procedure before servicing by 1) turning off the AC supply to the
equipment, and 2) disconnecting the battery by unplugging the battery connector. Only qualified service techni-
cians should service this equipment. The use of parts supplied by other than IOTA Engineering, LLC may result
in an unsafe condition, equipment failure and will void the warranty.
2. BATTERY - IOTA recommends that the battery terminations be re-torqued on an annual basis. Re-torque specifi-
cations are as follows: L Flag terminals 52 in/lbs. The battery supplied in this equipment is a high quality main-
tenance-free Valve Regulated Lead Acid design. It requires no maintenance and when installed in an ambient
temperature of 20° to 30° C (68° to 86° F) its life expectancy is 8 to 10 years. However, as stated above, the
equipment must be tested for 90 minutes a minimum of once per year. When the battery will no longer operate
the load for 90 minutes it must be replaced. Replace only with IOTA Engineering, LLC supplied parts. Dispose or
recycle the lead-acid battery properly.
6. SHUTDOWN PROCEDURE
If a shutdown of the IIS unit becomes necessary for routine maintenance or other purposes, always follow proper
shutdown procedure:
1) De-energize the AC supply by locking off the circuit breaker feeding the unit.
2) Disconnect the battery by uncoupling the battery connector between the battery and converter.
When restoring power to the IIS unit, refer to instructions beginning on Page 3, Step 3 for start-up procedures.
CONTACT CUSTOMER SERVICE FOR REPLACEMENT PARTS.
“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.