Chromalox Electric Heater S RAD 2 User Manual

®
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.  
 
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-  
 
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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