Thomas Research Products LBU7-M Installation, Operation And Service Instructions Download Page 2

CAUTION: SUPPLY AC POWER TO THE EMERGENCY DRIVER BEFORE JOINING EITHER

     CONVERTER CONNECTOR RED WIRES

INSTALLATION

1/2" DIA. 

THRU HOLE

SUPPLIED NUT

SMALL

BU

SHING

SUPPLIED TEST SWITCH/

INDICATOR LIGHT

TY-WRAP

SW INDICATOR

LARGE

BU

SHING

PLASTIC

T

UB

E

SW INDICATOR

PLASTIC

T

UB

E

LARGE

BU

SHING

EM DRIVER

SMALL

BU

SHING

SW LEADS

TIE WRAP

7/8" DIA THRU

HOLE

BALLAST

CHANNEL

COVER

FIXTURE

DIFFUSER

LENS

93071446

ILLUSTRATION 2

ILLUSTRATION 1

93071446

93071446

ILLUSTRATION 3

TY-WRAP

UL SWITCH

COVER

UL SWITCH

COVER

1/2" DIA.

THRU HOLE

SUPPLIED NUT

SMALL

BU

SHING

SUPPLIED TEST SWITCH/

INDICATOR LIGHT

TY-WRAP

SW INDICATOR

LARGE

BU

SHING

PLASTIC

T

UB

E

SW INDICATOR

PLASTIC

T

UB

E

LARGE

BU

SHING

EM DRIVER

 SMALL

BU

SHING

SW LEADS

TIE WRAP

7/8" DIA THRU

  HOLE

BALLAST

CHANNEL

 COVER

 FIXTURE

DIFFUSER 

  LENS

93071446

ILLUSTRATION 2

ILLUSTRATION 1

93071446

93071446

ILLUSTRATION 3

TY-WRAP

UL SWITCH

COVER

UL SWITCH

COVER

Installation of this Emergency LED Driver will vary based on the luminaire type, however, generally follow these steps.

Step 1.  Disconnect AC power to the LED lighting fixture. Remove lens and ballast channel cover from LED fixture if applicable. (see illustrations 2 & 4)
Step 2.  Using the 2 supplied screws, mount the LED emergency driver.  The lighting fixture instructions might provide suggestions on the driver mounting locati

on

Step 3.  Test switch/indicator light can be mounted directly to a fixture surface thru a 1/2 inch diameter hole. Once nut is tightened, slip UL switch cover over wires,  

pushing cover against fixture surface completely covering switch, then affix ty-wrap over wires against cover to secure. Switch should be visible once fixture is installed. 
(see illustration 1 & 4)

Step 4.  Test switch/indicator light can also be installed onto a driver channel cover through a 7/8 inch diameter hole (see illustrations 2 & 3.) Trim plastic tube to desired length, 

affix UL switch cover as shown and place into tube. Affix both the small bushing and the large bushing onto the plastic tube as shown. Connect tie wrap onto wires, 
tighten and insert into channel. Switch should be visible once fixture is installed.

This product is suitable for field installation with suitable LED loads including LED luminaires, DC voltage driven LED 

replacements for fluorescent lamps and others. There are 

5

 

checks to determine if your luminaire is eligible for use with this LED 

battery pack.

1.  Ensure the LED load's rated power is greater than or equal to the power output of this emergency LED driver (

7

W). This is to ensure that this emergency product will not 

produce more power than the LED load can handle, thus ensuring that the LED load will not be damaged when the system is in the emergency mode.

2.  Verify that the forward voltage of the luminaire's LED array is within the limits of this emergency LED driver. The forward voltage of the LED array is commonly designated as 

Vf and should be found on the luminaire marking's, in the luminaire specifications, or imprinted directly on the LED arrays. If multiple LED arrays are to be driven, verify 
that the total forward voltage is within the limits of this product. Using a voltage meter, it may be possible to directly measure the voltage across the LED array when 
operating from the AC driver.

3.

Ensure the output current of the LED driver does not exceed 1.6 Amps. This is the current into the blue wire.

4.

Ensure the LED fixture’s rated efficacy is equal to or greater than 65 lm / watt. This is to ensure that the LED fixture can be mounted at or below the maximum rated 
mounting

 height of 25.8 ft.

5.

Ensure there will be sufficient light output in the end application. Estimate the emergency egress lighting illumination levels by doing the following:

a.

Find the efficacy of the LED lighting fixture. Luminaire efficacy information can be found at the Design Lights Consortium websit

e

 (http://www. designlights.org), 

Energy Star - Certified Products - product finder website (http://www.energystar.gov/productfinder/) or given by the luminaire manufacturer on product catalog 
specification sheets. The LED fixture efficacy will be given in lumens per watt (lm/w)

.

b. L

umens can be calculated by multiplying the output power of the emergency LED driver (

7

W) by the efficacy of the LED load. 

In many cases the actual lumen output in emergency mode will be greater than this calculation gives, however it will provide  a good estimate for beginning the lighting 
design of the system.

Lumens In Emergency Mode = Lumens Per Watt of Fixture * Output Power of Chosen Product

(LUMENS) = (LM/W) * W

c. Using the results of this calculation and industry standard lighting design tools, calculate the anticipated illumination levels in the path of egress.

NOTE: This product has been designed to reliably interface with a wide selection of LED loads and is
electrically compatible with every simple LED array that meets criteria 

1-5

 above. However, compatibility 

cannot be guaranteed with all current and future LED systems. Compatibility testing of the end-use system 
is suggested. Please contact the factory with any questions.
NOTE: After installation, it will be necessary to measure the egress lighting illumination levels to ensure it 
complies with national, state, and local  code  requirements.

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