Chromalox Electric Heater RAD 2063BX35 User Manual

Chromalox  
SERVICE REFERENCE  
Installation, Operation  
DIVISION  
SALES  
4
SECTION RAD  
and  
(Supersedes PG404-9)  
PG404-10  
REFERENCE  
RENEWAL PARTS IDENTIFICATION  
161-048215-001  
DATE  
APRIL, 2005  
Type RAD (Style 3B) Electric Radiant Heaters  
!
The Safety Alert Symbol  
risk of personal injury  
is used to indicate a  
Before Installing  
1. Open carton and remove heater at the place of installation.  
Familiarize yourself with these instructions before attempting  
Mounting clamps are in parts bag in carton.  
to install or operate this Radiant Heater.  
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.  
Specifications Table –  
Length (In.)  
Volts  
kW  
Model  
Overall  
13-5/8  
20  
Heated  
7-3/4  
RAD-2063BX35  
RAD-2063BX29  
RAD-2083B  
RAD-2083BV  
RAD-3113B  
RAD-3113BV  
RAD-3133BV  
RAD-3133B  
RAD-4183BV  
RAD-4183B  
RAD-5213BV  
RAD-5213B  
RAD-5253BV  
RAD-5253B  
RAD-6273BV  
RAD-6273B  
RAD-6303BV  
RAD-6303B  
RAD-7333BV  
RAD-7333B  
RAD-7363BV  
RAD-7363B  
RAD-8453BV  
RAD-8453B  
120  
120  
0.4  
.65  
0.8  
0.8  
1.1  
1.1  
1.3  
1.3  
1.8  
1.8  
2.15  
2.15  
2.5  
2.5  
2.7  
2.7  
3.0  
3.0  
3.35  
3.35  
3.6  
3.6  
4.5  
4.5  
14-1/8  
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  
208 or 275  
240 or 480  
208 or 275  
240 or 480  
208 or 275  
240 or 480  
208 or 275  
240 or 480  
208 or 275  
240 or 480  
24-3/8  
30-5/8  
35-7/8  
46-5/8  
53-7/8  
61-3/8  
65-7/8  
73-3/4  
79-7/8  
85-3/4  
106  
16-1/2  
22-3/4  
28-5/16  
38-1/2  
45-7/16  
53-3/8  
58-1/4  
65-3/4  
72-1/4  
78  
97-1/2  
© 2010 Chromalox, Inc.  
 
WIRING  
9. SINGLE END WIRING may be made through one of the  
wiring entries by bringing a lead through it from the opposite  
end of the heating element using the wire-way provided behind  
integral reflector in the housing extrusion. Wire used in mak-  
ing such connections must be able to operate in high ambient  
and have a sufficiently high voltage rating for the specific  
application. The maximum wire diameter is limited by the  
wire-way and must not exceed .224” over the insulation.  
ELECTRIC SHOCK HAZARD. Disconnect all power  
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 accor-  
dance with the National Electrical Code, NFPA 70.  
10. SERIES CONNECTION of Radiant Heaters of equal volt  
and watt rating is permitted in all line voltages up to 600 volts.  
In making such series connections it is necessary to observe the  
“right” (series-parallel) connection rather than the “wrong”  
(parallel-series) connection both shown in Figure 6. If heaters  
are connected according to the “wrong” illustration, failure of  
any one heater will cause progressive failure of other heaters  
still operating.  
ELECTRIC SHOCK HAZARD. Any installation involv-  
ing electric heaters must be performed by a quali-  
fied person and must be effectively grounded in  
accordance with the National Electrical Code to  
eliminate shock hazard.  
1. Electric connection to the Radiant Heater is made through two  
openings tapped for 1/2” connector. Openings are in the top of  
the extruded heater housing, one near each end.  
Wrong  
Right  
2. Access to Radiant Heater terminals is obtained by removing  
Radiant  
Heaters  
the two screws in each of the terminal box covers.  
3. Wiring should run in flexible or rigid metal conduit and must  
be installed in accordance with the requirements of the  
National Electrical Code and such other local requirements by  
a qualified person.  
L1  
L2  
L1  
L2  
Figure 6  
4. Wires supplying power to heating element terminals shall have  
insulation rated for 150˚C Minimum.  
11. DELTA CONNECTIONS – When heaters occur in multiples  
of three, they may be connected to, and balanced across, three-  
phase lines. The most commonly used connection is the delta  
connection illustrated in Figure 7.  
High temperatures will oxidize copper. Use only  
nickel-plated copper wire for supplying power to  
heater. Do not use aluminum conductors.  
5. A sufficient length of this wire (not less than 12”) should be  
used to extend from each heater terminal into a connection box  
location where the temperature does not exceed 300˚F.  
3 Conductors  
in 1 Conduit  
Radiant  
Heaters  
A
B
C
D
E
F
6. Leave generous loop in wire when connecting to allow for  
expansion of heating element.  
L1  
L2  
L3  
3 Conductors  
in 1 Conduit  
Figure 7  
Three phase Delta connections to minimize inductive effect in con-  
duits are made per this diagram. The rule: run all 3 three-phase con-  
ductors in the same conduit as far as possible. For single-phase, run  
only two conductors and follow the same rule.  
Figure 5  
7. Assemble terminal, screw and wire as shown in Figure 5.  
8. Hold terminal with pliers and tighten the terminal screw  
securely with a screwdriver.  
Note: Where circuit wiring is installed in locations of high  
ambient temperature, conductors should be insulated in accor-  
dance with requirements for temperature and voltage.  
 
3
OPERATION  
B. Maximum Ambient Temperatures –  
Chromalox Radiant Heaters are not recommended for applica-  
tions in ambient temperature exceeding 450˚F. Higher ambient  
temperatures mean shorter heater life.  
FIRE/EXPLOSION HAZARD. This heater is not  
intended for use in hazardous atmospheres where  
flammable vapors, gases, liquids or other com-  
bustible atmospheres are present as defined in the  
National Electrical Code. Failure to comply can  
result in personal injury or property damage.  
Maximum work temperature in a given time depends on sever-  
al factors: Reflectivity of work, specific heat of work, mass of  
work, kW input and losses from oven, and time of exposure.  
As work temperature increases, the work loses heat by radia-  
tion and by convection to the surrounding ambient. Although it  
is a general principle of Radiant Heater application that work  
temperature conventionally exceeds ambient temperature, in  
cases where extremely high work temperatures are desired, it is  
necessary to enclose the heaters in order to increase the ambi-  
ent. If evaporation of a liquid is desired as a result of increas-  
ing work temperature, it is necessary to provide ventilation air  
in order to carry away the evaporated liquid. Under carefully  
engineered circumstances, a maximum work temperature of  
600˚F may be attained.  
Before energizing this heater:  
1. Be sure all electrical connections are tightly made. Hold ter-  
minal with pliers when tightening screw.  
2. Be sure that all conductors are properly insulated, and that they  
will not chafe at the heater wire entrance due to expansion and  
contraction of the heating element.  
3. Be sure that all terminal covers have been properly replaced,  
and that secondary insulation bushings have not been omitted.  
A. Controlling Radiant Intensity — Standard Radiant Heaters  
are built to operate at approximately 40 watts per sq. inch on  
the element sheath. When it is desired to reduce radiant inten-  
sity, one or more of the following methods may be used.  
i. INPUT CONTROLLERS. These motor-driven cycling  
devices can be used to vary heater output capacity from 4  
to 100%.They are usually connected in holding coil circuit  
of magnetic contactors. See Chromalox Radiant Heater  
Manual for further information regarding Input Controllers  
and Contactors.  
ii. SOLID STATE POWER CONTROLLERS. For best  
non-contact control of radiant heat, a Chromalox SCR  
Power Controller with manual potentiometer setting is rec-  
ommended. Truly proportional output of from 0-100% can  
be easily dialed-in to suit the particular product or process  
requirements. The panels are pre-engineered, prepackaged  
assemblies in an enclosure with circuit disconnect provided  
and ready for installation.  
MAINTENANCE  
B. To Install Element —  
Observe instructions for removing element and proceed in  
reverse fashion. Be sure to replace secondary insulating bushings.  
C. Care of Reflectors —  
ELECTRIC SHOCK HAZARD. Disconnect all power  
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 accor-  
dance with the National Electrical Code, NFPA 70.  
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 at both ends.  
3. Remove screws from porcelain terminal blocks.  
4. Remove element support clips and secondary insulating  
bushings.  
5. Lift element out of heater.  
 
4
RENEWAL PARTS IDENTIFICATION  
1
2
7
6
Element  
Model  
Reflector  
Sheet  
Insulation  
Bushing  
Element  
Support Clip  
Volts  
kW  
Model  
RAD-2063BX35  
RAD-2063B  
RAD-2063B  
120  
120  
240  
120  
120  
240  
120  
208  
240  
275  
120  
240  
240  
240  
120  
208  
240  
275  
208  
240  
275  
480  
240  
240  
240  
208  
240  
275  
480  
208  
240  
275  
480  
208  
240  
275  
480  
208  
240  
275  
480  
208  
240  
275  
480  
208  
240  
275  
480  
208  
240  
275  
480  
208  
240  
275  
480  
400  
600  
600  
650  
RTU-2063AX35  
234-013411-031  
234-013411-011  
234-013411-011  
234-013411-023  
—————  
—————  
—————  
—————  
—————  
—————  
—————  
—————  
RTU-2063A-120V  
RTU-2063A-240V  
RTU-2063AX29  
RAD-2063BX29  
RTU-2073A-120V  
RTU-2073A-240V  
RTU-2083A-120V  
RTU-2083AV-208V  
RTU-2083A-240V  
RTU-2083AV-275V  
RTU-3083A-120V  
RTU-3083A-240V  
RTU-3093A-240V  
RTU-3103A-240V  
RTU-3113A-120V  
RTU-3113AV-208V  
RTU-3113A-240V  
RTU-3113AV-275V  
RTU-3133AV-208V  
RTU-3133A-240V  
RTU-3133AV-275V  
RTU-3133A-480V  
RTU-4153A-240V  
RTU-4163A-240V  
RTU-4173A-240V  
RTU-4183AV-208V  
RTU-4183A-240V  
RTU-4183AV-275V  
RTU-4183A-480V  
RTU-5213AV-208V  
RTU-5213A-240V  
RTU-5213AV-275V  
RTU-5213A-480V  
RTU-5253AV-208V  
RTU-5253A-240V  
RTU-5253AV-275V  
RTU-5253A-480V  
RTU-6273AV-208V  
RTU-6273A-240V  
RTU-6273AV-275V  
RTU-6273A-480V  
RTU-6303AV-208V  
RTU-6303A-240V  
RTU-6303AV-275V  
RTU-6303A-480V  
RTU-7333AV-208V  
RTU-7333A-240V  
RTU-7333AV-275V  
RTU-7333A-480V  
RTU-7363AV-208V  
RTU-7363A-240V  
RTU-7363AV-275V  
RTU-7363A-480V  
RTU-8453AV-208V  
RTU-8453A-240V  
RTU-8453AV-275V  
RTU-8453A-480V  
RAD-2073B  
RAD-2083B  
RAD-3083B  
700  
800  
800  
234-013411-011  
234-013411-011  
234-013411-012  
—————  
—————  
—————  
—————  
—————  
—————  
RAD-3093B  
RAD-3103B  
900  
1000  
234-013411-012  
234-013411-012  
—————  
—————  
—————  
—————  
RAD-3113B  
1100  
1300  
234-013411-012  
—————  
—————  
RAD-3133B  
234-013411-013  
—————  
—————  
RAD-4153B  
RAD-4163B  
RAD-4173B  
1500  
1600  
1700  
234-013411-014  
234-013411-014  
234-013411-014  
032-013454-001 (2)  
032-013454-001 (2)  
032-013454-001 (2)  
059-013424-001  
059-013424-001  
059-013424-001  
RAD-4183B  
RAD-5213B  
RAD-5253B  
RAD-6273B  
RAD-6303B  
RAD-7333B  
RAD-7363B  
RAD-8453B  
1800  
2150  
2500  
2700  
3000  
3350  
3600  
4500  
234-013411-014  
234-013411-015  
234-013411-016  
234-013411-017  
234-013411-018  
032-013454-001 (2)  
032-013454-001 (4)  
032-013454-001 (6)  
032-013454-001 (6)  
032-013454-001 (8)  
032-013454-001 (8)  
032-013454-001 (10)  
032-013454-001 (10)  
059-013424-001  
059-013424-001 (2)  
059-013424-001 (3)  
059-013424-001 (3)  
059-013424-001 (4)  
059-013424-001 (4)  
059-013424-001 (5)  
059-013424-001 (5)  
234-013411-006*  
and  
234-013411-015*  
234-013411-004*  
and  
234-013411-012*  
234-013411-049 (2)  
* For ease of installation, these reflectors shipped in two pieces (one each of part numbers listed).  
PARTS COMMON TO ALL HEATERS  
Saddle Clamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .238-026539-001 (2)  
3
4
5
Terminal Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .306-014405-001 (2)  
Terminal Cover Clip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .056-014401-002 (4)  
End Plates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .220-014462-001 †  
220-014462-002  
15  
† indicates stamped end plate with voltage, wattage, etc.  
NOTE: Part numbers suffixed by a number in ( ) indicates the quantity of the same part  
number used.  
8
Terminal Screw . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .248-046044-002  
 
5
RENEWAL PARTS IDENTIFICATION  
6
MISCELLANEOUS HARDWARE  
Screws —  
MISCELLANEOUS PARTS  
9
Terminal Blocks 303-016367-001 (2)  
#8 x 1” Lg. 248-075519-095 (6)  
#8 x 3/8” Lg. 248-075519-080 (4)  
#8-32 x 3/8” Lg. 248-075512-053 (4)  
12  
13  
14  
10 Speed Nuts — 272-048153-005 (4)  
11  
Terminal Block — 303-014326-001 (2)  
TERMINAL BLOCK SET  
HEATER MOUNTING CLAMP ASSEMBLY  
168-016585-001 consists of the following:  
Terminal Block 303-016367-001 (2)  
See Figures 1, 2, 3 and 4, page 1.  
9
For mounting heater with catalog numbers up to Cat. No. RAD 7000  
use mounting clamp assembly Part No. 168-013071-001. For mount-  
ing heaters above Cat. No. RAD 7000 use mounting clamp assembly  
Part No. 168-013071-002.  
10 Speed Nuts 272-048153-005 (4)  
11 Terminal Block 303-014326-001 (2)  
Screws — #8 x 1” Lg. 248-075519-095 (6)  
12  
NOTE: Part numbers suffixed by a number in ( ) indicates the quantity of the same part number used.  
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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