Maintenance
Safe Shut Down Procedure
CAUTION: To avoid possible equipment damage or personal injury, assume that there is AC voltage present inside the
Tucson Micro inverter system unit any time AC input power or DC battery voltage is applied. The inverter is capable of
providing output voltage from the batteries even when there is no AC input line voltage. When AC input voltage is present,
the unit can provide output voltage even when the batteries are disconnected.
Do not touch components inside the unit. DC voltage is always present at the batteries and battery cables.
Final Shut Down Procedure
1. Open the unit’s front access panel.
2. Disconnect the unit battery leads to make sure the unit will not supply output voltage.
3. Place the AC Input circuit breaker at the service panel in the OFF position.
CAUTION:
HAZARDOUS ENERGY IS STORED IN CAPACITORS INSIDE THE TUCSON MICRO UNIT. AFTER
TURNING OFF SWITCHES, ALLOW 5 MINUTES FOR CAPACITORS TO DISCHARGE BEFORE ATTEMPTING ANY
SERVICE PROCEDURES.
4. If the service technician does not need to access the inside of the unit, keep the unit’s front cover/door closed.
5. If the unit will be shut off for an extended period of time, recharge battery every 60 to 90 days.
CAUTION:
The battery will be damaged and the warranty voided if not routinely recharged.
NOTE:
To turn power back on, follow the steps outlined in the
System Start-Up Procedure
section on page 10. Be sure
to complete all of the steps to assure the unit will operate properly.
Routine System Maintenance
The Tucson Micro inverter system unit is designed to provide years of trouble-free operation. The unit does require some
routine attention to assure peak performance. The manufacturer recommends a preventative maintenance check be
performed by a qualified service technician at least every six months. The technician must observe important safety
precautions while performing the following recommended tasks:
• Inspect and clean the unit interiors;
• Inspect all batteries for leaks, case swelling, or terminal corrosion;
• Perform an emergency operation test to check operation of all critical connected loads
Manual Routine Inverter Tests
NFPA101 requires that Emergency Lighting Equipment be tested on a monthly basis for a period of at least 5 seconds,
and a minimum of 90 minutes once a year. We strongly recommend these guidelines be followed to ensure system
readiness, and to prolong battery life. The Tucson Micro system was designed with a front panel test switch to facilitate
monthly testing. Simply depress the button and hold to test the inverter at any time. Once released, the Tucson Micro will
revert back to standby operation. For annual 90-minute discharge or other prolonged tests, simply turn off the AC Input
breaker at the service panel.
Tucson Micro Series
Installation Instructions
10070249
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EV 1 - 06/21
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800-533-3948 www.barronltg.com
