HETR
High-Efficiency Troffer Retrofit Kit
2x4
FEATURES
• Attractive and environmentally sensitive–the
• Designed to fit into most 2’ x 4’ fixture housings
HETR achieves the fresh appearance of a new
architecturally designed fixture while recycling
the existing fixture housing.
• Can improve optical efficiency as much as 20%
when replacing dated troffers and parabolics,
realizing substantial energy savings.
• Allows fixture upgrades without disturbing the
existing ceiling.
• Frosted, ribbed acrylic diffusers combined with
highly reflective matte white paint produce
high optical efficiencies while providing visual
comfort.
EXAMPLE
H ETR
W
-
SERIES
2 4
W W
-
NOM. NOM.
W. L.
2 32
W
W
-
TOTAL WATTAGE/
LAMPS TYPE
with a minimum fixture depth of 4”.
• T-slot steel hinge allows reversible hinging and
•
•
•
•
A
W
latching and ensures positive retention when
door is opened.
Cam latches close securely and allow hasslefree maintenance.
Tool-less access to the electrical from room
side of fixture.
Quick and easy installation.
All parts painted after fabrication to facilitate
installation, increase efficiency, and inhibit
corrosion.
-
OPTIONS
W
SHIELDING
-
OPTIONS
E B2
W
-
BALLAST
TYPE
UNV
W
VOLTAGE
H.E. W
strong illiams, Inc.
installinly recommend
s
g
prior to a trial fixture
o
project rdering full
quantiti
es.
ORDERING INFORMATION
SERIES
HETR
SHIELDING
High-Efficiency Troffer Retrofit Kit
NOMINAL WIDTH
2
For emergency ballasts and other options,
consult factory.
BALLAST TYPE
4’
For additional ballast combinations,
consult factory.
EB2
2-lamp electronic ballast
TOTAL LAMPS
2
VOLTAGE
LAMP WATTAGE/TYPE
28T5S
32
54T5H
Frosted, ribbed acrylic diffuser
OPTIONS
2’
NOMINAL LENGTH
4
A
120
277
UNV
347
4’, 28-watt T5
4’, 32-watt T8
4’, 54-watt T5HO
120V
277V
120-277V
347V
SPECIFICATIONS
• Housing – Provided by others, must fit within
approved minimum dimensions (see detailed
cross-sections). Not recommended for fixtures
with black housing.
• Door – 22-gauge C.R.S., flat with mitered corners.
T-slot steel hinge allows reversible hinging and
latching.
• Reflector/Wireway Cover – 25-gauge C.R.S.
• Shielding – Frosted, ribbed acrylic diffuser.
• Finish – Reflector/Wireway Cover: 92% minimum
average reflective white polyester powder coat
•
•
•
•
bonded to phosphate-free, multi-stage pretreated
metal. Door: Highly reflective non-glare matte
white polyester powder coated finish.
Electrical – Electronic ballast standard, instant
start T8, program start T5, rated Class P.
Mounting – Designed to retrofit existing troffers
and parabolics in grid ceiling applications.
Labels – UL/CUL classified as luminaire
conversion, retrofit kit.
This fixture is proudly made in the USA.
T5 Lamps
T8 Lamps
15-1/4” min. inside
11/16” min.
door depth
4” min.
inside
depth
48” max.
47-13/16” min.
20-1/2” min. inside
22-3/4” min. inside
door opening
45-1/4” min.
fixture inside
46-9/16” min. door
opening inside
Length
www.hewilliams.com
Information contained herein is subject to change without notice. LGV31005.120213RJ
Width
Housing provided by others. Not recommended
for fixtures with black housing.
See minimum fixture dimensions provided.
Lamps not included.
Retrofit Kits |
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