Run a wire from the LED power supply to the LED
module and connect.
NOTE: Must be used with Tetra® 24 Volt Power
Supplies.
NOTE: Refer to Maximum Loading & Remote
Mounting Specifications on page 5.
LED
Power
Supply
To Tetra LED System
Red (+)
Black or blue (-)
To LED
power
supply
Red (+)
Black or
blue (-)
Red Stripe (+)
Connect the red stripe wire (+) of the LED strip to the
red wire (+) of the power supply. Connect the white
wire (-) of the LED strip to the black or blue wire (-) of
the LED power supply.
NOTE: All electrical connections should be suitably
protected from mechanical damage and the
environment. Seal all connections in wet locations
with electrical grade RTV silicone.
White (-)
Seal all connections in wet locations
with electrical grade RTV silicone
OPTIONAL
A Weather Box (GEXNWB2) may be used
to house and seal Class 2 connections as
described below:
A) Insert wire connectors into weather box. Fill
with electrical grade silicone and close box.
B) Secure the weather box using a #6 or #8
(M2 or M3) screw.
Weather box
can be painted
Light engine
Retrofit Instructions
1. (Existing Signs Only) Prior to installation, survey the site for information regarding power and accessibility inside and outside the building. Ensure
that the branch circuit supplying the existing transformer or ballast will be within the voltage ratings of the new LED power supply, and have a current
rating not exceeding 20A, or that permitted by applicable local, state, or country electrical codes (whichever is less).
2. (Existing Signs Only) Remove the existing lighting equipment to be replaced, such as neon tubing or fluorescent tubes; and associated
transformers and ballasts. Care should be taken not to break the existing neon or fluorescent tubes. NOTE: Follow all federal and local regulations
when disposing of neon tubing, fluorescent tubes, transformers and ballasts.
3. (Existing Signs Only) If removal of the existing lighting equipment eliminates the disconnect switch, as required by applicable local, state, or
country electrical codes; a new disconnect switch must be installed.
4. (Existing Signs Only) Repair and seal any unused openings in the electrical enclosure. Openings greater than 12.7-mm (1/2-in) diameter require a
metal patch secured by screws or rivets and caulked with non-hardening caulk. Smaller openings may be sealed with non-hardening caulk.
5. (Existing Signs Only) A clean and dry mounting surface ensures optimum adhesion if the self-adhesive method of mounting is chosen. Follow
the manufacturer’s directions when using a non-oil based solvent, such as rubbing alcohol to clean the surface area where you intend to mount the
module. Before installing, ensure the surface is dry.
6. Using the layout guidelines above, determine required number of LED modules required to illuminate the sign.
7. A Tetra
®
24VDC Class 2 Power Supply, as listed below, must be used with this retrofit kit. Using the Maximum Loading chart below, determine the
number of Tetra
®
Class 2 Power Supplies required to power the number of LED modules required to illuminate the sign, so as not to overload the
Tetra
®
Class 2 Power Supply chosen.
8. Follow the instructions above to properly mount the LED modules.
9. Connect the DC output of the power supply to the LED modules using the Electrical Connections instructions above.
10. Connect the power unit to the supply in accordance with the applicable local, state, and country electrical codes, and the instructions found in the
power supply installation guide.
11. If required, the disconnect switch shall be installed by qualified personnel, in accordance with applicable local, state, and country electrical codes.
FOR UL ONLY
3
4
A
B
Tetra
®
Atom
Installation Guide
4
