IOTA IIS-550-I - Manual (Page 4)

Page 4 Rev. 1413
68550-000
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 feed-
ing the IIS-550-I.
3. OPERATION
Normal Mode - AC power is present and operates the fixtures as intended. The IIS-550-I is in the standby charging
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-550-I 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-550-I will be illumi-
nated for a minimum of 90 minutes. When the AC power is restored, the IIS-550-I switches the system back to the Nor-
mal Mode and resumes battery charging. See page 1 of the instruction manual for important operational 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 mini-
mum 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 equip-
ment, and 2) disconnecting the battery by unplugging the battery connector. Only qualified service technicians
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 specifica-
tions are as follows: Screw Stud terminals 65 in/lbs; L Flag terminals 52 in/lbs. The battery supplied in this equip-
ment is a high quality maintenance-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.