®
Chromalox
DIVISION
SALES
SECTION RAD
4
PG422-2
(Supersedes PG422-1)
REFERENCE
161-058066-001
DATE
SEPTEMBER, 2001
Note: Please familiarize yourself with these instructions before attempting
Specifications
to install or connect this Radiant Heater.
Length (In.)
Model
Volts
kW
Overall
Heated
Type S-RAD
S-RAD-2
S-RAD-2V
S-RAD-3
S-RAD-3V
S-RAD-4V
S-RAD-4
S-RAD-5V
S-RAD-5
S-RAD-6V
S-RAD-6
S-RAD-7V
S-RAD-7
120 or 240
208 or 275
120 or 240
208 or 275
208 or 275
240 or 480
208 or 275
240 or 480
208 or 275
240 or 480
208 or 275
240 or 480
0.95
24-3/8
16-1/2
Electric Radiant Heater
1.3
2.2
3.0
3.75
4.4
30-5/8
46-5/8
61-3/8
73-3/4
85-3/4
22-3/4
38-5/8
53-3/8
65-3/4
77-3/4
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.
MOUNTING
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 by a qualified person
in accordance with the National Electrical Code,
NFPA 70.
1. Clamps — Heaters are mounted by means of the mounting
clamp and 3/8” bolt assembly which is used as shown in Figure
2. 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 Figure 3). For proper heater support,
the maximum distance between clamps must not exceed 48”.
On extra-long heaters, more than two clamps are furnished.
2. Mounting Holes — When heaters are mounted adjacent to
each other in the same plane, note that distance between mount-
ing holes on framing to support heaters will be 311/16” 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 311/16”.
Figure 1 — Heater Parts and Dimensions
215
/
"
16
2 3/8"
3 11
/
"
16
Figure 2
Figure 3
Mounting Frame
Insulation
3. 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.
4. Reflector Spacer Sheets — Where heaters are not mounted
side by side (see Figure 4), reflector spacer sheets can be used
between heaters. These reflector spacer sheets and companion
reflectors consisting of an extruded aluminum housing with
reflector sheet and mounting clamps are available. Check factory.
5. Insulation — Where unusually high work temperatures are
Reflector
Spacer Sheet
Figure 4
Hazard of Fire. In the case of solvents of an explo-
sive nature, ventilation air must be in sufficient vol-
ume to dilute the solvent vapor so that explosive
mixtures cannot occur. In order to comply with the
standards of safety required by the insurance com-
panies, ventilation protection and other facilities
must be in accordance with National Fire Protection
Association Bulletin No. 86, entitled “Standard for
Class A Ovens and Furnaces”. This bulletin may be
obtained from the Association at 1 Batterymarch
Park, Quincy, MA 02269.
encountered, it may be desirable to insulate backs of heaters
with high-temperature fibrous insulation. A suggested method
of accomplishing this is indicated in Figure 4.
6. Ventilation — Where solvents, water, etc. are being evaporat-
ed from work in process, it is necessary to provide substantial
quantities of ventilation air to carry away the resulting vapors.
© 2010 Chromalox, Inc.
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MAINTENANCE
4. Lift element out of heater.
B. To Install Element —
Observe instructions for removing element and proceed in
reverse fashion. Be sure to replace secondary insulating bush-
ings.
ELECTRIC SHOCK HAZARD. Disconnect all power
to heater before installing or servicing heater.
Failure to do so could result in personal injury or
property damage. Heater must be installed by a
qualified person in accordance with the National
Electric Code, NFPA 70.
C. Care of Reflectors —
Reflectors should be cleaned periodically. A mild soap and
water solution or fine cleaning powder is best, although more
drastic means may be required if reflectors are badly soiled by
chemical or other deposits. The reflector is aluminum. DO
NOT use alkali cleaners since alkalies will dull reflector. Mild
non-alkaline cleaners, such as used for scouring kitchen sinks,
may be used. Reflectors are replaceable and may be purchased
from Chromalox.
A. To Remove Heating Element —
1. Remove terminal cover screws and terminal cover.
2. Disconnect heating element from electrical leads.
3. Remove element support clips and secondary insulating
bushings.
RENEWAL PARTS IDENTIFICATION
To Order: Specify quantity, part number, volts and watts.
PARTS COMMON TO ALL HEATERS
MISCELLANEOUS HARDWARE
Description
Description
Part Number
Part Number
3
4
Terminal Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 080-013311-001
End Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220-016382-001
End Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220-014662-002
Terminal Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303-050641-001
Terminal Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303-050640-001
Screws
8
#8-32 x 5/16” lg. . . . . . . . . . . . . . . . . . . . . . . . . . . . 248-048161-084 (2)
#6-32 x 7/8” lg. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248-048889-245 (2)
#8 x 1/4” lg. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248-075483-173 (2)
#8-32 x 1/4” lg. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248-075409-044 (4)
12
13
14
5
9
11
Nuts
10
#8-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200-050619-001 (2)
15
#6-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200-050621-001 (2)
-3-
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RENEWAL PARTS IDENTIFICATION
6
1
2
7
1
Model
Volts
Watts
Element Model No.
Element P.N.
Reflector Sheet
Insulation Bushing Element Support Clip
120
208
240
275
SRTU-209-120
SRTU-209V-208
SRTU-209-240
SRTU-209V-275
228-024788-001
228-024788-002
228-024788-003
228-024788-004
S-RAD-2
950
234-013411-025
234-013411-086
234-013411-051
234-013411-087
234-013411-088
234-013411-089
032-013454-001 (4) 059-013424-001
120
208
240
275
SRTU-313-120
SRTU-313V-208
SRTU-313-240
SRTU-313V-275
228-024788-005
228-024788-006
228-024788-007
228-024788-008
S-RAD-3
S-RAD-4
S-RAD-5
S-RAD-6
S-RAD-7
1300
2200
3000
3750
4400
032-013454-001 (4) 059-013424-001
032-013454-001 (6) 059-013424-001 (2)
032-013454-001 (6) 059-013424-001 (2)
032-013454-001 (8) 059-013424-001 (3)
032-013454-001 (10) 059-013424-001 (4)
208
240
275
480
SRTU-422V-208
SRTU-422-240
SRTU-422V-275
SRTU-422-480
228-024788-009
228-024788-010
228-024788-011
228-024788-012
208
240
275
480
SRTU-530V-208
SRTU-530-240
SRTU-530V-275
SRTU-530-480
228-024788-013
228-024788-014
228-024788-015
228-024788-016
208
240
275
480
SRTU-638V-208
SRTU-638-240
SRTU-638V-275
SRTU-638-480
228-024788-017
228-024788-018
228-024788-019
228-024788-020
208
240
275
480
SRTU-744V-208
SRTU-744-240
SRTU-744V-275
SRTU-744-480
228-024788-021
228-024788-022
228-024788-023
228-024788-024
Limited Warranty:
Please refer to the Chromalox limited warranty applicable to this product at
2150 N. RULON WHITE BLVD., OGDEN, UT 84404
Phone: 1-800-368-2493
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