This document provides installation instructions for an LED retrofit kit that can replace the existing lighting components in troffer fixtures. The kit is designed to fit into fixture openings of 2'x2' or 2'x4' sizes. The installation involves removing the existing lamp, ballast and wiring, then mounting side rails and suspending the LED retrofit insert from the rails using hinge pins before securing it with latches. Proper safety precautions and warnings are provided to ensure the installation is completed by a qualified electrician according to applicable electrical codes.

1. 65mm
540mm
65mm
Page 1
TR Series Troffer LED Retrofit Kit Installation Instructions
This installation guide is valid for the
following Energy Solution’s retrofit kits:
ARK22R24110D
ARK22R24125D
ARK22R30110D
ARK22R30125D
ARK24R40110D
ARK24R40125D
ARK24R50110D
ARK24R50125D
2’ x 2’ 2’ x 4’ WIDTH/
65mm
2’ x 4’ Length
2’ x 2’ Length
1183mm
572mm
Dimension
End rails (mounting bracket) Screw
Hardware
LED troffer

2. Page 2
TR Series Troffer LED Retrofit Kit Installation Instructions
WARNING FAILURE TO FOLLOW THESE
INSTRUCTIONS AND WARNINGS MAY
RESULT IN DEATH, SERIOUS INJURY OR SIGNIFI-
CANT PROPERTY DAMAGE.For your protection,
carefully read these warnings and instructions in their
entirety before installing or maintaining this equip-
ment. These instructions do not attempt to cover all
installation and maintenance situations.
WARNING: This retrofit must be installed by a quali-
fied electrician in accordance with any NEC, CEC,
state, and/or local code requirements. This retrofit kit
is not for use with all fixture bodies.
WARNING: Risk of fire or electric shock. Installation
requires knowledge of luminaire electrical systems. If
not qualified, do not attempt installation. Contact a
qualified electrician.
WARNING: Risk of fire or electric shock. Never
connect to, disconnect from or service while circuit
equipment is energized.
WARNING: Risk of fire or electric shock. Luminaires
wiring, power supply, or other electrical parts may
be damaged when drilling for installation of retrofit
assembly hardware. Inspect wiring and components
for damage.
WARNING: Risk of personal injury. This equipment
may have sharp edges. Wear gloves to prevent cuts
or abrasions when removing from carton, handling
and maintaining this equipment.
Do not install in a damaged fixture
• This equipment must be installed in accordance
with all federal, state and local laws, regulations and
codes
• Proper grounding is required to ensure personal
safety
•All service shall be performed by qualified service
personnel
•This equipment must be installed and modified in
accordance with all federal, state and local laws,
regulations and codes by a professional who is famil-
iar with the construction and operation of this prod-
uct and any hazards involved
NOTICE: Do not install with total power input greater
than power rating of original fixture
WARNING: To prevent wiring damage or abrasion,
do not expose wiring to edges of sheet metal or
other sharp objects.
WARNING: Only those open holes indicated in the
photographs and/or drawings may be made or al-
tered as a result of kit installation. Do not leave any
other open holes in an enclosure of wiring or electri-
cal components
Warnings

3. Page 3
TR Series Troffer LED Retrofit Kit Installation Instructions
1.Turn off power to fixture
2. Remove the lens, ballasts, socket bars and so on
Remove the lamps. Remove the ballast cover.
Remove the socket-bars, sockets, ballast
and the wiring between the ballast and the sockets.
3. Install the side Rails
Installation procedure
Remove door/louver, ballast
cover, socket bars, lampholders,
ballast and wiring.
Host Fixture
Shell
Figure2 - Mounting Rail fully installed
Figure 1 Start with Mounting Rail at a slight angle, nested between the ceiling grid T-bar and the fixture housing

4. Page4
TR Series Troffer LED Retrofit Kit Installation Instructions
4. Suspend the LED Retrofit Insert from the Mounting Rails
5. Finalize installation of the LED Retrofit Insert.
Figure 3 - Suspend LED Insert from Mounting Rails
Figure4 - Securing the Latches
Branch Wiring
Entry
Hinge Pin
Pivot
Hole
Image of Completed Installation
Position the LED Retrofit Insert in the host fixture opening so
the driver is on the same end as the branch wiring entry point.
With the Insert positioned vertically, insert the Hinge Pin on
one end of the LED Retrofit Insert into the pivot hole in the
Mounting Rail (Fig. 3).
Align the Hinge Pin on the opposite corner with the slot in
the Mounting Rail and slide the LED Retrofit Insert toward the
corner of the host fixture until both Hinge Pins are located in
the pivot holes.
Complete the installation by rotating the LED Retrofit Insert
so it is flush with the ceiling and secure it by rotating the
latches (Fig. 4).