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(Supersedes PG412-9)
PG412-10
RADD
161-026681-001
DECEMBER, 2008
4
RENEWAL PARTS IDENTIFICATION
Installation, Operation
and
DATE
SALES
REFERENCE
DIVISION SECTION
Chromalox
®
© 2010 Chromalox, Inc.
Type RADD Electric
Radiant Heaters
Specifications
The Safety Alert Symbol is used to indicate a risk of per-
sonal injury.
Please familiarize yourself with these instructions before
attempting to install or operate this Radiant Heater.
Before Installing:
1. Open carton and remove heater at the place of installation.
Mounting clamps are in parts bag in carton.
2. Check nameplate volt and watt rating against your power sup-
ply voltage and heating requirements of your installation. This
nameplate is located on one end of the heater.
The system designer is responsible for the safety
of this equipment and should install adequate
back-up controls and safety devices with their
electric heating equipment. Where the conse-
quences of failure could result in personal injury or
property damage, back-up controls are essential.
INSTALLATION
ELECTRIC SHOCK HAZARD. Disconnect all power
before installing or servicing heater. Failure to do
so could result in personal injury or property dam-
age. Heater must be installed or serviced by a
qualified person in accordance with the National
Electrical Code, NFPA 70.
1. These radiant heaters are designed for indoor installation only.
2. Mounting Clamps — Mount heaters by using the mounting
clamp and 3/8” bolt assembly.
Clamp assembly may be attached to heater by sliding over end
or by snapping over top of extruded frame section at any point
along its length. (see Fig. 2) For proper heater support, the
maximum distance between clamps must not exceed 48”. On
extra-long heaters, more than two clamps are furnished.
3. Mounting Holes — When heaters are mounted adjacent to
each other in the same plane, note that distance between
mounting holes on framing to support heaters will be 3-11/16”
minimum. When heaters are not in the same plane, i.e., set at
an angle to one another, distance between mounting holes in
framing will be either greater or less than 3-11/16”.
4. Framing — Where an extensive installation is being made, the
use of continuous slot metal framing manufactured by several
concerns will be of assistance in saving time and money. The
framing is reusable.
(Interlocking Connectors
Discontinued)
AB
Model No. Volts kW Overall Length Heated Length
RADD-2164 120 or 240
1.6 24-3/8 16-1/2
RADD-2164V 208 or 275
RADD-3224 120 or 240
2.2 30-5/8 22-3/4
RADD-3224V 208 or 275
RADD-3264V 208 or 275
2.6 35-7/8 28-5/16
RADD-3264 240 or 480
RADD-4364V 208 or 275
3.6 46-5/8 38-1/2
RADD-4364 240 or 480
RADD-5434V 208 or 275
4.3 53-7/8 45-7/16
RADD-5434 240 or 480
RADD-5504V 208 or 275
5.0 61-3/8 53-3/8
RADD-5504 240 or 480
RADD-6544V 208 or 275
5.4 65-7/8 58-1/4
RADD-6544 240 or 480
RADD-6604V 208 or 275
6.0 73-3/4 65-3/4
RADD-6604 240 or 480
RADD-7674V 208 or 275
6.7 79-7/8 72-1/4
RADD-7674 240 or 480
RADD-7724V 208 or 275
7.2 85-3/4 78
RADD-7724 240 or 480
RADD-8904V 208 or 275
9.0 106 97-1/2
RADD-8904 240 or 480
RADD-7604X10 240 or 480 8.0 114-1/8 106
RADD-7604X13 240 or 480 10 141 132
RADD-7604X9A 240 or 480 11 160-5/8 150
RADD-7724X38 240 or 480 13 185-5/8 174
B
A
Figure 1 — Heater Parts and Dimensions
Figure 2
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