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LightAlarms

Tel: (888) 552-6467 

Fax: (800) 316-4515

www.lightalarms.com

06/18 750.1783 Rev. G

LMIU 125/250/400W Mini Inverter

IMPORTANT SAFEGUARDS

When using electrical equipment, basic safety precautions should always be followed, including the following:

READ THIS MANUAL AND FOLLOW ALL SAFETY INSTRUCTIONS 
THOROUGHLY BEFORE OPERATING THE LMIU INVERTER SYSTEM

SAVE THESE INSTRUCTIONS

 

 

                                                           

1. DO NOT USE OUTDOORS.
2. All unused wires must be insulated to prevent shorting.

3. Do not mount near gas or electric heaters.
4. Do not let power supply cords touch hot surfaces.
5.

D

o not use this equipment for other than its intended use.

6. The 

LMIU

 should be mounted securely and in locations and at heights where it will not be readily subjected to tampering by 

unauthorized personnel.

7. The use of accessory equipment and replacement parts not recommended by manufacturer may cause an unsafe condition and 

void the warranty.

8. The AC voltage rating of this equipment is specified on the product label. Do not connect the 

LMIU

 equipment to any other voltage.

9. Replacement fuse is supplied.
10. The 

LMIU

 uses sealed valve regulated lead acid batteries. Batteries can be punctured if not handled properly, therefore use caution 

when servicing batteries.  In the event battery acid comes in contact with eyes or skin, flush with fresh water and consult a physician 
immediately.

11. Install in accordance with the National Electrical Code and local regulations.
12. The 

LMIU

 contains potentially hazardous voltages. Installation, maintenance  and service work should be performed by qualified 

and trained personnel.

13.

Electricians and end-users need to ensure product system compatibility before final installation.

14. Units to  be  installed only as per configuration described in this instruction manual.        

IMPORTANT:

 

Do not exceed the total rating of the Mini Inverter. Unit is rated at maximum Watt and maximum VA, where Max.W 

= Max.VA. Total load (W) must be derated when load power factor (PF) is less than 0.9 (for maximum performance)

.

All LightAlarms inverter products receive 100% quality inspection before shipment to ensure proper and satisfactory operation.

When operated under normal conditions, LightAlarms inverter products will provide years of dependable service. This unit is backed by a 
3-7 year warranty. The unit is covered by a complete 3-year warranty against defects in material or workmanship, and a 7-year pro-rata 
battery warranty.

BEFORE CONTACTING TECHNICAL SUPPORT PLEASE REFER TO THE TROUBLESHOOTING GUIDE INCLUDED IN 
THIS MANUAL.

MODEL NUMBER

AC SPECS

EMERGENCY POWER AVAILABLE FOR LOAD

APPROX. 

WEIGHT

90 MIN

2H

3H

4H

LMIU-125

120/277 VAC, 60Hz

1.50 / 0.70 Amps

125W

85W

65W

50W

50LBS.

LMIU-250

2.75 / 1.20 Amps

250W

170W

125W

95W

100LBS.

LMIU-400

4.60 / 2.00 Amps

400W

300W

200W

150W

150LBS.

WARRANTY

 LMIU 125/250/400W Mini Inverter

INTERRUPTIBLE EMERGENCY LIGHTING

UNIT INVERTER INSTRUCTION MANUAL

THIS UNIT CONTAINS A 

RECHARGEABLE VALVE-REGULATED  

LEAD ACID BATTERY. PLEASE 

RECYCLE OR DISPOSE OF 

PROPERLY.

i

Summary of Contents for LMIU 125W

Page 1: ...onal Electrical Code and local regulations 12 The LMIU contains potentially hazardous voltages Installation maintenance and service work should be performed by qualified and trained personnel 13 Elect...

Page 2: ...TH NORMAL AND EMERGENCY SOURCES BY TURNING OFF THE A C BRANCH CIRCUIT AND BY DISCONNECTING THE BATTERY CAUTION BEFORE INSTALLING MAKE CERTAIN THE A C POWER IS OFF NOTE THE BATTERY S ARE SHIPPED SEPARA...

Page 3: ...specting the operating voltage All remote circuitry is to be wired in accordance with Article 700 of the National Electric Code Do not exceed the total rating of the Mini Inverter Unit is rated at max...

Page 4: ...e same color in each pole on the terminal block See Figure on side c Leave a minimum of one inch 25mm between the live voltage cabling and the unsheathed low voltage data cabling NOTE NO WIRING IS REQ...

Page 5: ...e of 20 to 30 C 68 to 86 F their life expectancy is 8 to 10 years However as stated above the equipment must be tested for a minimum of 90 minutes once per year When the batteries will no longer opera...

Page 6: ...tched Neutral Ground Line see note 3 see note 3 Wall Switch Normally ON Lighting Load Output Wiring Triac Dimmer Device Fluorescent LED Incandescent FIGURE 2A WIRING DIAGRAM SWITCHED NORMALLY ON LOAD...

Page 7: ...PUT POWER terminals 4 DO NOT COMBINE THE INPUT POWER NEUTRAL WITH THE LOAD NEUTRAL Un Switched see note 3 Line 120Vac Neutral 120V Neutral 120Vac Ground 0 10V FIGURE 2D WIRING DIAGRAM UN SWITCHED NORM...

Page 8: ...switch for at least 6 seconds The reset also initializes the main counter This renewal takes place to compensate for system variations when the unit ages Renewal is not allowed if there is a lighting...

Page 9: ...isabled during a power failure in order for the load to provide a 100 level of lighting The circuit consists of a single pole dry contact relay that is normally closed in stand by operation In emergen...

Page 10: ...not commissioned to the Nexus system Lamp load is OFF None if unit is in normally off mode Nexus option Unit is operating correctly Unit is not commissioned to the Nexus system LED flashing GREEN OFF...

Page 11: ...the batteries LED Flashing RED 2 times every 6 seconds Charger Failure Error Charger not working Reset the unit see page 4 and if the same error is displayed replace the charger board LED Flashing RED...

Page 12: ...CT CUSTOMER SERVICE FOR REPLACEMENT PARTS SERVICING MUST BE PERFORMED BY QUALIFIED PERSONNEL Consult Customer Service for current warranty information All information and specifications contained in t...

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