Page 4
Rev. 1810
68552-000
6. COMPLETING INSTALLATION
B. Operate the Test Switch for approximately 10 seconds. Observe that any emergency fixtures do not go out, and
that any normally off fixtures come on.
C. Release the Test Switch. Normally Off fixtures 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-550-HE
.
Operation
Normal Mode
- AC power is present and operates the fixtures as intended. The
IIS-550-HE
is in the standby charging mode. The
Test Switch/LED Indicator will be lit RED providing a visual indication that the unit is in Standby Mode.
Emergency Mode
- The AC power fails. The
IIS-550-HE
senses the AC power failure and automatically switches to the
Emergen-
cy Mode
. All fixtures, including Normally Off or switched off fixtures, connected to the
IIS-550-HE
will be illuminated for a mini-
mum of 90 minutes. When the AC power is restored, the
IIS-550-HE
switches the system back to the
Normal 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 re-
setting the breaker insure that all wiring is correct and the load side of the inverter is isolated from all other power sources. Verify
that the load does not exceed the rated capacity of the inverter.
Testing
1) To test the equipment, depress the Test Switch/LED Indicator. The designated fixtures will either illuminate if they
were off or will stay on if they were normally illuminated.
2)
Release the Test Switch. The Test Switch/LED Indicator will illuminate RED. Normally Off emergency fixtures
will extinguish.
The equipment is supplied with an automatic solid state charger designed to fully recharge the battery within 24 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 24 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.
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 technicians should service this equip-
ment. The use of parts supplied by other than IOTA Engineering, LLC may result in an unsafe condition, equipment failure, will
void the warranty, and result in non-compliance with UL specifications.
2. BATTERY - IOTA recommends that the battery terminations be re-torqued on an annual basis. Re-torque specification for
L
Flag
terminals is 52 in/lbs. The battery supplied in this equipment 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. Use only IOTA Engineering, LLC
supplied parts. Dispose or recycle the lead-acid battery properly.
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 4 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.
