Chromalox Electric Heater ADH 005 User Manual

®
Chromalox  
SERVICE REFERENCE  
Installation Operation  
DIVISION 4  
SECTION ADH  
SALES  
and  
REFERENCE  
(Supersedes PF438-3)  
PF438-4  
161-057949-001  
RENEWAL PARTS IDENTIFICATION  
DATE  
SEPTEMBER, 2004  
Type ADH and ADHT  
Air Duct Heaters  
Specifications — Table A  
No. Mtg.  
Holes  
9/32”  
Dia.  
Approx.  
Net. Wt.  
(Lbs.)  
Approx.  
Net. Wt.  
(Lbs.)  
Dimensions (In.)  
No.  
No.  
Circuits  
Model  
Model  
Volts  
Phase kW Elements  
A
B
C
D
E
H
K
L
M
ADH-005  
ADH-010  
ADH-015  
8
15  
25  
ADHT-005  
ADHT-010  
ADHT-015  
10  
20  
30  
480  
480  
480  
3
3
3
5
10  
15  
3
6
9
10  
10  
12  
1
1
1
5-5/8 20-3/8 28-1/8  
7-5/8 20-3/8 28-1/8  
9-5/8 20-3/8 28-1/8  
4
6
8
1/4 2-1/2 3-1/2 11-1/8 9-1/2  
1/4 3-1/2 3-1/2 11-1/8 9-1/2  
1/4  
3
3-1/2 11-1/8 9-1/2  
ADH-020  
ADH-025  
ADH-030  
35  
40  
55  
ADHT-020  
ADHT-025  
ADHT-030  
40  
50  
65  
480  
480  
480  
3
3
3
20  
25  
30  
12  
15  
18  
14  
14  
14  
1
1
1
11-5/8 20-3/8 28-1/8 10  
13-5/8 20-3/8 28-1/8 12  
15-5/8 20-3/8 28-1/4 14  
1/4 2-3/4 3-1/2 11-1/8 9-1/2  
1/4 3-1/4 3-1/2 11-1/8 9-1/2  
3/8 3-3/4 3-1/2 11-1/8 9-1/2  
ADH-035  
ADH-040  
ADH-045  
65  
70  
80  
ADHT-035  
ADHT-040  
ADHT-045  
80  
90  
100  
480  
480  
480  
3
3
3
35  
40  
45  
21  
24  
27  
14  
14  
14  
1
2
2
17-5/8 20-3/8 28-1/4 16  
19-5/8 20-3/8 28-1/4 18  
21-5/8 20-3/8 28-1/4 20  
3/8 4-1/4 3-1/2 11-1/8 9-1/2  
3/8 4-3/4 3-1/2 11-1/8 9-1/2  
3/8 5-1/4 3-1/2 11-1/8 9-1/2  
ADH-050  
ADH-060  
ADH-080  
90  
105  
140  
ADHT-050  
ADHT-060  
ADHT-080  
110  
130  
175  
480  
480  
480  
3
3
3
50  
60  
80  
30  
36  
48  
14  
18  
22  
2
2
4
23-5/8 20-3/8 28-1/4 22  
27-5/8 20-3/8 28-1/4 26  
35-5/8 20-3/8 28-1/4 34  
3/8 5-3/4 3-1/2 11-1/8 9-1/2  
3/8 4-1/2 3-1/2 11-1/8 9-1/2  
3/8 4-3/8 3-1/2 11-1/8 9-1/2  
ADH-090  
ADH-100  
160  
175  
ADHT-090  
ADHT-100  
ADHT-120  
200  
220  
205  
480  
480  
480  
3
3
3
90  
100  
120  
54  
60  
36  
22  
22  
18  
5
5
4
39-5/8 20-3/8 28-1/4 38  
43-5/8 20-3/8 28-1/4 42  
27-5/8 35 42-7/8 26  
3/8 4-7/8 3-1/2 11-1/8 9-1/2  
3/8 5-3/8 3-1/2 11-1/8 9-1/2  
3/8 4-1/2 3-1/2 11-1/8 9-1/2  
ADH-144  
ADH-162  
165  
185  
ADHT-160  
270  
480  
480  
480  
3
3
3
144  
160  
162  
48  
48  
54  
22  
22  
22  
4
8
6
35-5/8 35 42-7/8 34  
35-5/8 35 42-7/8 34  
39-5/8 35 42-7/8 38  
3/8 4-3/8 3-1/2 11-1/8 9-1/2  
3/8 4-3/8 3-1/2 11-1/8 9-1/2  
3/8 4-7/8 3-1/2 11-1/8 9-1/2  
ADH-216F  
240  
ADHT-180  
ADHT-240F  
305  
400  
480  
480  
480  
3
3
3
180  
216  
240  
54  
72  
72  
22  
22  
22  
6
6
8
39-5/8 35 42-7/8 38  
27-5/8 35 42-7/8 26  
27-5/8 35 42-7/8 26  
3/8 4-7/8 3-1/2 11-1/8 9-1/2  
3/8 4-1/2 3-7/8  
3/8 4-1/2 3-7/8  
20 18-3/8  
20 18-3/8  
ADH-270F  
300  
500  
480  
480  
3
3
270  
300  
90  
90  
22  
22  
8
10  
33-5/8 35 42-7/8 32  
33-5/8 35 42-7/8 32  
3/8 5-1/2 3-7/8  
3/8 5-1/2 3-7/8  
20 18-3/8  
20 18-3/8  
ADHT-300F  
Type ADH  
Type ADHT  
Airflow  
Direction  
Airflow  
Direction  
Figure 1 — Dimensions  
Figure 2 — Dimensions  
© 2004 Chromalox, Inc.  
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INSTALLATION (cont’d.)  
6. In high ambient temperature operations, least corrosive action  
and least oxidation to the terminals will occur if the heaters are  
mounted with the terminals in the coolest possible ambient,  
usually on the bottom or side of the duct.  
HAZARD OF FIRE. Since these heaters are capable of  
developing high temperatures, extreme care should  
be taken to:  
A. Minimum duct size is “A” or “L” dimension +3/8” and “B”  
A. Avoid installing heaters in an atmosphere containing com-  
dimension +1-5/8”.  
bustible gases and vapors.  
B. Avoid contact between heater and combustible material.  
C. Keep combustible materials far enough away to be free of  
the effects of high temperatures.  
ADHT High temperature duct heaters — are generally mounted on field fabricated stand  
off supports from the ductwork to position the heater such that the 3” insulation housing  
is in the same plane as the duct insulation.  
ADH Low temperature duct heaters — can be fastened directly to the sheet metal duct  
work with bolts or sheet metal screws.  
Duct  
Duct  
Air  
Air  
Standoff Collar  
Air  
Air  
Insulation  
(3" max.)  
Figure 6  
Figure 7  
Temperature Control Instructions  
3. For heater protection, the indicated maximum temperature of  
the control unit should be 50°F less than the actual maximum  
air temperature that will be permitted, to allow for overshoot.  
4. Single circuit heater elements may be wired into two circuits to  
allow for partial heating and control. It is important to have  
thermal control wired into all electric power circuits, so that all  
elements may be protected from overheat.  
1. A Chromalox thermal cutout or thermostat is recommended for  
overheat protection and control of heater and process. Consult  
local Chromalox representative.  
2. In general, place thermostat sensing element close to the heat-  
ing elements, near top of duct, at right angles to the direction of  
air flow, and on the downstream side of the heater. Thermostat,  
provided with a manual reset button, is separately mounted.  
WIRING  
devices with their electric heating equipment. Selection of con-  
trols, thermostat, SCR units, contactors and etc. depends on the  
degree of accuracy required, reliability, electrical rating of  
heater and economic considerations.  
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.  
5. Below is an example of a standard ADH-015, 480V 3 Ø 15 kW,  
wired with recommended back-up controls. (Figure 8)  
6. Individual terminal blocks with 1/4-20 threaded stud type terminals  
are provided for each circuit to permit quick positive attachment of  
circuit wiring conductors (one terminal block per circuit). (Figure 9)  
1. All wiring should be done in accordance with 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 bus bar is recom-  
mended for power connections to heater terminals and for  
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 bus bar. Consult local Chromalox representative.  
4. Users should install adequate back-up controls and safety  
Terminal block  
(303-027852-001)  
X Circuit label indicated here.  
Figure 9  
ADH-015, 15 kW 480V 3ø, 1 Circuit  
(9) - 480V, 1667 Watt Elements  
Magnetic  
Contactor  
Fused  
Switch  
Terminal  
Block  
L1  
L1  
L
2
L
2
3
L
L
3
ADH-015  
Control  
Voltage  
120 or 240V  
Customer Supplied Wiring  
Factory Supplied Wiring  
Thermostat  
Figure 8  
Control Switch  
3
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OPERATION  
Do not operate heater at voltages in excess of that stamped on  
the heater since excess voltage will shorten heater life.  
MAINTENANCE  
1. Periodically clean terminals and terminal covers of dust and corro-  
sion to maintain good electrical connections and to permit rapid  
heat dissipation. Use airblast, and be careful to avoid damage to  
mica insulation.  
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.  
2. Check for loose terminal connections. Tighten as necessary.  
WIRING DIAGRAMS  
ADH-005, ADHT-005, ADH-010, ADHT-010,  
ADHT-120, ADH-144, ADHT-160, ADH-162,  
ADHT-180, ADH-216F, ADHT-240F, ADH-270F,  
ADH-300F . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6  
ADH-015, ADHT-015, ADH-020, ADHT-020,  
ADH-025, ADHT-025, ADH-030, ADHT-030,  
ADH-035, ADHT-035 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4  
ADH-040, ADHT-040, ADH-045, ADHT-045,  
ADH-050, ADHT-050, ADH-060, ADHT-060,  
ADH-080, ADHT-080, ADH-090, ADHT-090,  
ADH-100, ADHT-100 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5  
ADH-005, ADHT-005  
ADH-010, ADHT-010  
1 Circuit, 6 Elements per Heater  
ADH-015, ADHT-015  
1 Circuit, 9 Elements per Heater  
AL1  
1 Circuit, 3 Elements per Heater  
AL1  
AL1  
AL2  
AL3  
AL2  
AL2  
AL3  
AL3  
Circuit A  
Circuit A  
Circuit A  
Circuit A  
Circuit A  
ADH-020, ADHT-020  
ADH-025, ADHT-025  
1 Circuit, 15 Elements per Heater  
AL1  
1 Circuit, 12 Elements per Heater  
AL1  
AL2  
AL3  
AL2  
AL3  
Circuit A  
ADH-030, ADHT-030  
ADH-035, ADHT-035  
1 Circuit, 21 Elements per Heater  
1 Circuit, 18 Elements per Heater  
AL1  
AL2  
AL3  
AL1  
AL2  
AL3  
Circuit A  
4
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WIRING DIAGRAMS  
ADH-040, ADHT-040  
2 Circuits per Heater, Circuit A, B, 12 Elements per Circuit,  
24 Elements per Heater  
ADH-045, ADHT-045  
2 Circuits per Heater, Circuit A, 15 Elements,  
Circuit B, 12 Elements, 27 Elements per Heater  
AL1  
AL2  
AL3  
BL1  
BL2  
AL1, BL1  
AL2, BL2  
AL3, BL3  
BL3  
Typical Circuit  
Circuit A  
ADH-050, ADHT-050  
Circuit B  
2 Circuits per Heater, Circuit A 18 Elements, Circuit B 12 Elements, 30 Elements per Heater  
AL1  
BL1  
BL2  
BL3  
AL2  
AL3  
Circuit A  
Circuit B  
ADH-080, ADHT-080  
4 Circuits per Heater, Circuit A, B, C, D,  
12 Elements per Circuit, 48 Elements per Heater  
ADH-060, ADHT-060  
2 Circuits per Heater, Circuit A, B,  
18 Elements per Circuit, 36 Elements per Heater  
AL1, BL1  
AL1, BL1, CL1, DL1  
AL2, BL2, CL2, DL2  
AL2, BL2  
AL3, BL3  
AL3, BL3, CL3, DL3  
Typical Circuit  
Typical Circuit  
ADH-090, ADHT-090  
ADH-100, ADHT-100  
5 Circuits per Heater, Circuit A, B, C, D, 12 Elements per Circuit,  
Circuit E, 6 Elements, 54 Elements per Heater  
5 Circuits per Heater, Circuit A, B, C, D, E,  
12 Elements per Circuit, 60 Elements per Heater  
AL1, BL1, CL1, DL1  
EL1  
AL1, BL1, CL1, DL1, EL1  
AL2, BL2, CL2, DL2  
EL2  
AL2, BL2, CL2, DL2, EL2  
AL3, BL3, CL3, DL3  
AL3, BL3, CL3, DL3, EL3  
EL3  
Circuit A, B, C, D  
Circuit E  
Typical Circuit  
5
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WIRING DIAGRAMS  
ADHT-120  
ADH-144  
4 Circuits per Heater, Circuit A, B, C, D,  
9 Elements per Circuit, 36 Elements per Heater  
4 Circuits per Heater, Circuit A, B, C, D,  
12 Elements per Circuit, 48 Elements per Heater  
AL1, BL1, CL1, DL1  
AL1, BL1, CL1, DL1  
AL2, BL2, CL2, DL2  
AL2, BL2, CL2, DL2  
AL3, BL3, CL3, DL3  
AL3, BL3, CL3, DL3  
Typical Circuit  
Typical Circuit  
ADH-160  
8 Circuits, Circuit A, B, C, D, E, F, G, H,  
6 Elements per Circuit, 48 Elements per Heater  
ADH-162, ADHT-180  
6 Circuits, Circuit A, B, C, D, E, F,  
9 Elements per Circuit, 54 Elements per Heater  
AL1, BL1, CL1, DL1, EL1, FL1, GL1, HL1  
AL2, BL2, CL2, DL2, EL2, FL2, GL2, HL2  
AL3, BL3, CL3, DL3, EL3, FL3, GL3, HL3  
AL1, BL1, CL1, DL1, EL1, FL1  
AL2, BL2, CL2, DL2, EL2, FL2  
AL3, BL3, CL3, DL3, EL3, FL3  
Typical Circuit  
Typical Circuit  
ADH-216F  
ADHT-240F  
ADH-270F  
ADH-300F  
10 Circuits,  
8 Circuits,  
6 Circuits,  
8 Circuits,  
Circuit A, B, C, D, E, F, G, H, I, J,  
9 Elements per Circuit,  
Circuits A, B, C, D, E, F, G,  
Circuit A, B, C, D, E, F,  
12 Elements per Circuit, 72  
Elements per Heater  
Circuit A, B, C, D, E, F, G, H,  
9 Elements per Circuit, 72  
Elements per Heater  
12 Elements per Circuit, Circuit H,  
6 Elements, 90 Elements per Heater  
90 Elements per Heater  
AL1, BL1,  
HL1  
AL1, BL1, CL1,  
DL1, EL1, FL1  
CL1, DL1,  
EL1, FL1, GL1  
AL1, BL1,  
CL1, DL1,  
AL2, BL2,  
EL1, FL1,  
AL1, BL1,  
L2, BL2,  
CL2, DL2,  
GL1, HL1,  
CL1, DL1,  
EL1, FL1,  
GL1, HL1  
L2, DL2,  
L2, FL2,  
L2, HL2  
EL2, FL2,  
IL1, JL1  
GL2, HL2,  
IL2, JL2  
AL3, BL3,  
CL3, DL3,  
EL3, FL3,  
GL3, HL3,  
IL3, JL3  
AL3, BL3,  
CL3, DL3,  
EL3, FL3,  
GL3, HL3  
AL2, BL2,  
AL2, BL2, CL2,  
DL2, EL2, FL2  
HL2  
CL2, DL2,  
EL2, FL2, GL2  
AL3, BL3,  
HL3  
AL3, BL3, CL3,  
DL3, EL3, FL3  
CL3, DL3,  
EL3, FL3, GL3  
Typical Circuit  
Typical Circuit  
Circuit A - G  
Circuit H  
Typical Circuit  
6
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RENEWAL PARTS IDENTIFICATION — TYPE ADH  
*  
Element  
Retaining Clip  
Individual  
Replacement  
Element  
Element  
Spacer Plate  
Support Rod  
Spacers  
Terminal Block  
Assembly  
Flange  
Model  
ADH-005  
ADH-010  
ADH-015  
ADH-020  
ADH-025  
ADH-030  
ADH-035  
ADH-040  
ADH-045  
ADH-050  
ADH-060  
ADH-080  
ADH-090  
ADH-100  
ADH-144  
ADH-162  
393-055440-007 (3)  
393-055440-006 (6)  
393-055440-007 (9)  
393-055440-006 (12)  
393-055440-007 (15)  
393-055440-006 (18)  
393-055440-007 (21)  
393-055440-006 (24)  
393-055440-007 (27)  
393-055440-006 (30)  
393-055440-006 (36)  
393-055440-006 (48)  
393-055440-006 (54)  
393-055440-006 (60)  
393-055440-009 (48)  
393-055440-009 (54)  
121-055367-001  
121-055367-002  
121-055367-003  
121-055367-004  
121-055367-005  
121-055367-006  
121-055367-007  
121-055367-008  
121-055367-009  
121-055367-010  
121-055367-011  
121-055367-013  
121-055367-014  
121-055367-015  
121-055367-013  
121-055367-014  
272-511327-001 (6)  
272-511327-001 (12)  
272-511327-001 (18)  
272-511327-001 (24)  
272-511327-001 (30)  
272-511327-001 (36)  
272-511327-001 (42)  
272-511327-001 (48)  
272-511327-001 (54)  
272-511327-001 (60)  
272-511327-001 (72)  
272-511327-001 (96)  
272-511327-001 (108)  
272-511327-001 (120)  
272-511327-001 (96)  
272-511327-001 (108)  
271-055370-001  
271-055370-002  
271-055370-003  
271-055370-004  
271-055370-005  
271-055370-006  
271-055370-007  
271-055370-008  
271-055370-009  
271-055370-010  
271-055370-011  
271-055370-013  
271-055370-014  
271-055370-015  
271-055370-013 (2)  
271-055370-014 (2)  
242-055376-001 (4)  
242-055376-001 (4)  
242-055376-001 (4)  
242-055376-001 (4)  
242-055376-001 (4)  
242-055376-001 (4)  
242-055376-001 (4)  
242-055376-001 (4)  
242-055376-001 (4)  
242-055376-001 (4)  
242-055376-001 (4)  
242-055376-001 (5)  
242-055376-001 (6)  
242-055376-001 (6)  
242-055376-001 (10)  
242-055376-001 (12)  
303-027852-001  
303-027852-001  
303-027852-001  
303-027852-001  
303-027852-001  
303-027852-001  
303-027852-001  
303-027852-001 (2)  
303-027852-001 (2)  
303-027852-001 (2)  
303-027852-001 (2)  
303-027852-001 (4)  
303-027852-001 (5)  
303-027852-001 (5)  
303-027852-001 (4)  
303-027852-001 (6)  
ADH-216F  
ADH-270F  
393-055440-171 (72)  
393-055440-171 (90)  
121-055367-032  
121-055367-033  
271-055370-866 (2)  
271-055370-867 (2)  
242-055376-001 (12)  
242-055376-001 (12)  
303-027852-001 (6)  
303-027852-001 (8)  
NOTE: Number in parentheses ( ) indicates the quantity of that part required.  
* Older heaters may have retaining channels instead of clips. Contact Factory for  
part number and quantity.  
ADH Replacement Element Rating  
Volts  
Part No.  
Watts  
393-055440-171 (w/ftgs)  
393-055440-006  
393-055440-007  
480  
240  
480  
480  
3000  
1667  
1667  
3000  
393-055440-009  
Upper  
Terminal Box  
Lower  
Terminal Box  
Knockouts for  
Line Connections  
Other Parts Common to all Heaters  
(except ADH-216F  
and ADH-270F)  
7
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RENEWAL PARTS IDENTIFICATION — TYPE ADHT  
*  
Element  
Spacer Plate  
Individual  
Replacement  
Element  
Element  
Support Rod  
Spacers  
Terminal Block  
Assembly  
Thermocouple  
Terminal Block  
Thermocouples  
Flange  
Model  
Retaining Clip  
ADHT-005 393-055441-007 (3) 309-122380-003 121-055367-001  
ADHT-010 393-055441-006 (6) 309-122380-003 121-055367-002  
ADHT-015 393-055441-007 (9) 309-122380-003 121-055367-003  
ADHT-020 393-055441-006 (12) 309-122380-003 121-055367-004  
ADHT-025 393-055441-007 (15) 309-122380-003 121-055367-005  
ADHT-030 393-055441-006 (18) 309-122380-003 121-055367-006  
ADHT-035 393-055441-007 (21) 309-122380-003 121-055367-007  
ADHT-040 393-055441-006 (24) 309-122380-003 121-055367-008  
ADHT-045 393-055441-007 (27) 309-122380-003 121-055367-009  
ADHT-050 393-055441-006 (30) 309-122380-003 121-055367-010  
ADHT-060 393-055441-006 (36) 309-122380-003 121-055367-011  
ADHT-080 393-055441-006 (48) 309-122380-003 121-055367-013  
272-511327-001 (6)  
272-511327-001 (12)  
272-511327-001 (18)  
272-511327-001 (24)  
272-511327-001 (30)  
272-511327-001 (36)  
272-511327-001 (42)  
272-511327-001 (48)  
272-511327-001 (54)  
272-511327-001 (60)  
272-511327-001 (72)  
272-511327-001 (96)  
271-055370-016  
271-055370-017  
271-055370-018  
271-055370-019  
271-055370-020  
271-055370-021  
271-055370-022  
271-055370-023  
271-055370-024  
271-055370-025  
271-055370-026  
271-055370-028  
271-055370-029  
271-055370-030  
242-055376-002 (4)  
242-055376-002 (4)  
242-055376-002 (4)  
242-055376-002 (4)  
242-055376-002 (4)  
242-055376-002 (4)  
242-055376-002 (4)  
303-027852-001  
303-027852-001  
303-027852-001  
303-027852-001  
303-027852-001  
303-027852-001  
303-027852-001  
303-122014-002  
303-122014-002  
303-122014-002  
303-122014-002  
303-122014-002  
303-122014-002  
303-122014-002  
242-055376-002 (4) 303-027852-001 (2) 303-122014-002  
242-055376-002 (4) 303-027852-001 (2) 303-122014-002  
242-055376-002 (4) 303-027852-001 (2) 303-122014-002  
242-055376-002 (4) 303-027852-001 (2) 303-122014-002  
242-055376-002 (5) 303-027852-001 (4) 303-122014-002  
242-055376-002 (6) 303-027852-001 (5) 303-122014-002  
242-055376-002 (6) 303-027852-001 (5) 303-122014-002  
242-055376-002 (8) 303-027852-001 (4) 303-122014-002  
ADHT-090 393-055441-006 (54) 309-122380-003 121-055367-014 272-511327-001 (108)  
ADHT-100 393-055441-006 (60) 309-122380-003 121-055367-015 272-511327-001 (120)  
ADHT-120 393-055441-009 (36) 309-122380-003 121-055367-011  
ADHT-160 393-055441-009 (48) 309-122380-003 121-055367-013  
272-511327-001 (72) 271-055370-026 (2)  
272-511327-001 (96) 271-055370-028 (2) 242-055376-002 (10) 303-027852-001 (8) 303-122014-002  
ADHT-180 393-055441-009 (54) 309-122380-003 121-055367-014 272-511327-001 (108) 271-055370-029 (2) 242-055376-002 (12) 303-027852-001 (6) 303-122014-002  
ADHT-240F 393-055441-159 (72) 309-122380-003 121-055367-032  
271-055370-833 (2) 242-055376-002 (12) 303-027852-001 (8) 303-122014-002  
ADHT-300F 393-055441-159 (90) 309-122380-003 121-055367-033  
271-055370-834 (2) 242-055376-002 (12) 303-027852-001 (10) 303-122014-002  
NOTE: Number in Parentheses ( ) indicates the quantity of that part required.  
* Older heaters may have retaining channels instead of clips. Contact Factory for part  
number and quantity.  
ADHT Replacement Element Rating  
Volts  
Part No.  
Watts  
393-055441-159 (w/ftgs)  
393-055441-006  
393-055441-007  
480  
240  
480  
480  
3333  
1667  
1667  
3333  
Upper  
Terminal Box  
Lower  
Terminal Box  
393-055441-009  
Other Parts Common to all Heaters  
Knockouts for  
Line Connections  
Thermocouple  
Terminal Box  
Insulation  
Housing  
(except ADHT-240F  
and ADHT-300F)  
Max. Temp 800˚F  
WARRANTY AND LIMITATION OF REMEDY AND LIABILITY  
Chromalox warrants only that the Products and parts manufactured by Chromalox, when shipped, and the work performed by and expenses therefor, including but not limited to attorney's fees, and indemnifies Chromalox against any liability to Chromalox's  
Chromalox when performed, will meet all applicable specification and other specific product and work requirements (including vendors arising out of such litigation.  
those of performance), if any, and will be free from defects in material and workmanship under normal conditions of use. All  
claims for defective or nonconforming (both hereinafter called defective) Products, parts or work under this warranty must be replace its Products, parts or work at the original f.o.b. point of delivery or (ii) refund an equitable portion of the purchase price.  
made in writing immediately upon discovery, and in any event, within one (1) year from delivery, provided, however all claims for THE FOREGOING IS CHROMALOX'S ONLY OBLIGATION AND BUYER'S EXCLUSIVE REMEDY FOR BREACH OF WARRANTY,  
Upon Buyer's submission of a claim as provided above and its substantiation, Chromalox shall at its option either (i) repair or  
defective Products and parts must be made in writing no later than eighteen (18) months after shipment by Chromalox. Defective AND IS BUYER'S EXCLUSIVE REMEDY AGAINST CHROMALOX FOR ALL CLAIMS ARISING HEREUNDER OR RELATING HERE-  
and nonconforming items must be held for Chromalox's inspections and returned to the original f.o.b. point upon request. THE TO WHETHER SUCH CLAIMS ARE BASED ON BREACH OF CONTRACT, TORT (INCLUDING NEGLIGENCE AND STRICT LIABILI-  
FOREGOING IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES WHATSOEVER, EXPRESS, IMPLIED AND STATUTORY, TY) OR OTHER THEORIES, BUYER'S FAILURE TO SUBMIT A CLAIM AS PROVIDED ABOVE SHALL SPECIFICALLY WAIVE ALL  
INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR CLAIMS FOR DAMAGES OR OTHER RELIEF, INCLUDING BUT NOT LIMITED TO CLAIMS BASED ON LATENT DEFECTS. IN NO  
PURPOSE.  
EVENT SHALL BUYER BE ENTITLED TO INCIDENTAL OR CONSEQUENTIAL DAMAGES AND BUYER SHALL HOLD CHROMALOX  
Notwithstanding the provisions of this WARRANTY AND LIMITATION Clause, it is specifically understood that Products and HARMLESS THEREFROM. ANY ACTION BY BUYER ARISING HEREUNDER OR RELATING HERETO, WHETHER BASED ON  
parts not manufactured and work not performed by Chromalox are warranted only to the extent and in the manner that the same BREACH OF CONTRACT, TORT (INCLUDING NEGLIGENCE AND STRICT LIABILITY) OR OTHER THEORIES, MUST BE COM-  
are warranted to Chromalox by Chromalox's vendors, and then only to the extent that Chromalox is reasonably able to enforce MENCED WITHIN ONE (1) YEAR AFTER THE DATE OF SHIPMENT OR IT SHALL BE BARRED.  
such warranty, it being understood Chromalox shall have no obligation to initiate litigation unless Buyer undertakes to pay all cost  
W2008M  
2150 N. RULON WHITE BLVD., OGDEN, UT 84404  
Phone: 1-800-368-2493 www.chromalox.com  
TA - W4 - EF.  
Litho in U.S.A.  
Download from Www.Somanuals.com. All Manuals Search And Download.  

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