Chromalox Electric Heater CAB User Manual

®
Chromalox  
SERVICE REFERENCE  
Installation, Operation  
DIVISION  
SALES  
4
SECTION CAB  
and  
(Supersedes PF412-6)  
161-048224-001  
PF412-7  
REFERENCE  
RENEWAL PARTS INDENTIFICATION  
Type CAB and CABB  
Forced Air Duct Heaters  
Sensitive Bulb of  
Thermostat  
2 Holes 5/16-18 Tapped,  
Each Side For Mounting  
4-1/4”  
A
3/4”  
B
C
21/32  
1-9/16”  
2-1/4”  
2-1/4”  
3-5/8”  
Type CAB  
Special Cover for Side  
or Bottom Terminals  
Type CABB  
Specifications –  
Model  
Dimensions (In.)  
Weight  
(Lbs.)  
No.  
No.  
Volts  
Phase kW  
1 or 3  
(Note 1)  
(Note 2)  
Finstrips Ckts.  
A
B
C
CAB-62  
CAB-611  
120, 208,  
240 or 480  
25  
6
6
9
1
1
1
1
1
10-3/4 15-7/8 11-1/2  
CABB-62  
CAB-122  
CABB-122  
CAB-152  
CABB-152  
CAB-202  
CABB-202  
CAB-252  
CABB-252  
——  
CAB-402  
CABB-402  
CAB-502  
CABB-502  
CAB-752  
CABB-752  
CAB-1002  
CABB-611  
CAB-1211  
CABB-1211  
CAB-1511  
CABB-1511  
CAB-2011  
CABB-2011  
CAB-2511  
CABB-2511  
CABB-3011  
CAB-4011  
CABB-4011  
CAB-5011  
CABB-5011  
CAB-7511  
CABB-7511  
CAB-10021  
35  
208, 240 or 480  
1 or 3 12  
1 or 3 15  
15-3/8 18-1/2 14-1/8  
15-3/8 21-5/8 17-1/4  
20-1/8 21-5/8 17-1/4  
40  
208, 240 or 480  
9
208 or 240  
480  
208 or 240  
480  
480  
208 or 240  
480  
208 or 240  
480  
208 or 240  
480  
208 or 240  
480  
3
55  
20  
12  
12  
1 or 3  
3
65  
25  
20-1/8 26-1/8 21-3/4  
29-1/2 21-5/8 17-1/4  
1 or 3  
75  
90  
3
3
30  
40  
18  
18  
2
2
29-1/2 27-3/8  
23  
1 or 3  
3
1 or 3  
3
1 or 3  
3
1 or 3  
110  
200  
220  
50  
75  
18  
27  
27  
2
3
3
29-1/2 33-1/8 28-3/4  
44-7/16 42-1/8 37-3/4  
44-7/16 47-1/2 43-1/8  
100  
CABB-1002 CABB-10021  
1. Iron sheath strip heaters — for sheath temperatures to 750˚F.  
2. Chrome steel sheath strip heaters — for sheath temperatures to 950˚F.  
© 2010 Chromalox, Inc.  
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WIRING  
wiring runs in heated zones. When ambient temperature in  
heated zone exceeds that for which insulated wire is recom-  
mended use bare nickel-plated copper with porcelain beads,  
tubing or buss bar. Consult local Chromalox representative.  
4. Users should install adequate back-up controls and safety  
devices with their electric heating equipment. Selection of  
controls, thermostat, SCR units, contactors and etc. depends  
on the degree of accuracy required, reliability, electrical rating  
of heater and economic considerations.  
WARNING: Hazard of Electric Shock. Any installation  
involving electric heaters must be effectively ground-  
ed in accordance with the National Electrical Code to  
eliminate shock hazard.  
1. All wiring should be done in accordance with the National  
Electrical Code and with local codes by a qualified person.  
2. Connect air heaters to same line voltage, phase and frequency  
as on heater nameplate.  
3. Teflon insulated nickel plated copper wire or buss bar is rec-  
5. Below is an example of standard CAB 122 480V 3P 12 kW  
ommended for power connections to heater terminals and for  
wired with recommended back-up controls (Figure 3).  
Figure 3 - Wiring Diagram  
Heater  
Fan  
Thermal Cutout  
Motor  
120/240  
Control  
Circuit  
Contactor  
Fused Switch  
480V  
Power  
Supply  
OPERATION  
1. Do not operate heaters at voltages in excess of that stamped  
WARNING: Users should install adequate back-up  
controls and safety devices with their electric  
heating equipment. Where the consequences of  
failure may be severe, back-up controls are essen-  
tial. Although the safety of the installation is the  
responsibility of the user, Chromalox will be glad  
to assist in making equipment recommendations.  
on the heater since excess voltage will shorten heater life.  
MAINTENANCE  
2. Check for loose terminal connections.  
WARNING: Hazard of Severe Shock. Disconnect all  
power to heater before servicing or replacing heaters.  
1. Periodically clean terminals and terminal covers of dust and  
corrosion to maintain good electrical connections and to per-  
mit rapid heat dissipation. Use airblast, and be careful to avoid  
damage to mica insulation.  
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RENEWAL PARTS IDENTIFICATION  
Heating Element  
208 Volt 240 Volt  
Model  
CAB-62  
CABB-62  
CAB-611  
CABB-611  
CAB-122  
kW  
120 Volt  
480 Volt  
117-013851-001 (6) 117-013851-002 (6) 117-013851-003 (6) 117-013851-004 (6)  
117-013852-001 (6) 117-013852-002 (6) 117-013852-003 (6) 117-013852-004 (6)  
6
——  
——  
——  
——  
——  
——  
——  
——  
117-013851-006 (9) 117-013851-007 (9) 117-013851-008 (9)  
117-013852-006 (9) 117-013852-007 (9) 117-013852-008 (9)  
117-013851-010 (9) 117-013851-011 (9) 117-013851-012 (9)  
117-013852-010 (9) 117-013852-011 (9) 117-013852-012 (9)  
117-013851-010 (12) 117-013851-011 (12) 117-013851-012 (12)  
117-013852-010 (12) 117-013852-011 (12) 117-013852-012 (12)  
117-013851-014 (12) 117-013851-015 (12) 117-013851-016 (12)  
117-013852-014 (12) 117-013852-015 (12) 117-013852-016 (12)  
CABB-122  
CAB-1211  
CABB-1211  
CAB-152  
CABB-152  
CAB-1511  
CABB-1511  
CAB-202  
CABB-202  
CAB-2011  
CABB-2011  
CAB-252  
CABB-252  
CAB-2511  
CABB-2511  
CABB-3011  
CAB-402  
CABB-402  
CAB-4011  
CABB-4011  
CAB-502  
CABB-502  
CAB-5011  
CABB-5011  
CAB-752  
CABB-752  
CAB-7511  
CABB-7511  
CAB-1002  
CABB-1002  
CAB-10021  
CABB-10021  
12  
15  
20  
25  
30  
40  
——  
——  
——  
——  
117-013852-012 (18)  
117-013851-018 (18) 117-013851-019 (18) 117-013851-020 (18)  
117-013852-018 (18) 117-013852-019 (18) 117-013852-020 (18)  
117-013851-022 (18) 117-013851-023 (18) 117-013851-024 (18)  
117-013852-022 (18) 117-013852-023 (18) 117-013852-024 (18)  
117-013851-026 (27) 117-013851-027 (27) 117-013851-028 (27)  
117-013852-026 (27) 117-013852-027 (27) 117-013852-028 (27)  
117-013851-030 (27) 117-013851-031 (27) 117-013851-032 (27)  
117-013852-030 (27) 117-013852-031 (27) 117-013852-032 (27)  
——  
——  
——  
——  
——  
——  
——  
50  
75  
100  
Number in parenthesis indicates total quantity in unit.  
Terminal Cover — 306-021921-001  
Bulb Mounting Strap — 283-033234-001  
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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