Chromalox Pm400 2 Users Manual CHX

PM400-2 IM-PM400

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Chromalox

Installation Instructions

SERVICE REFERENCE
4

DIVISION

SALES
REFERENCE

SECTION

(Supersedes PM400-1)

HB

PM400-2

161-049691-001
MARCH, 1999

DATE

Type HB Heater Bands
for Barrel or Surface Temperatures up to 800˚F
Specifications — Table A

1/4” spacing between
multiples.

Type HB

1-1/2” W

Model

PCN

Volts

Watts

W/In2

Amperes

Barrel Diameter
(In.)

Wt
(Lbs.)

HB-5075
HB-5080
HB-5460
HB-5415
HB-6040
HB-6075
HB-6410
HB-7010
HB-7715
HB-7412
HB-7490
HB-8013
HB-8014
HB-8415
HB-9015
HB-9217
HB-9413
HB-9416
HB-1018
HB-10226
HB-10415
HB-1120
HB-11412
HB-11417
HB-12416
HB-13418
HB-1412
HB-1425
HB-15425
HB-1725
HB-17425
HB-2030

273631
273287
272760
273463
269149
268998
269464
273623
273586
273578
269157
269000
273599
269886
269018
272073
269165
273640
269878
273615
269026
272305
260034
273711
269042
269050
269130
269069
269077
263986
263994
264006

240
240
240
240
240
240
240
240
240
240
240
240
240
240
240
240
240
240
240
240
240
240
240
240
240
240
240
240
240
240
240
240

750
800
600
1500
400
750
1000
1000
1500
1250
900
900
1400
1565
1100
1710
1300
1600
1800
2600
1200
2025
1200
1700
1500
1800
1200
2500
2500
2500
2500
2500

50
48
33
82
20
38
48
43
53
48
35
30
50
53
33
53
35
45
48
68
30
48
28
38
30
38
23
45
40
38
38
38

3.1
3.3
2.5
6.3
1.7
3.1
4.2
4.2
6.3
5.2
3.8
3.8
5.8
6.5
4.6
7.1
5.4
6.7
7.5
10.8
5.0
8.4
5.0
7.1
6.3
7.5
5.0
10.4
10.4
10.4
10.4
12.5

5
5-1/4
5-1/2
5-1/2
6
6
6-1/2
7
7-1/8
7-1/2
7-1/2
8
8
8-1/2
9
9-1/4
9-1/2
9-1/2
10
10-1/4
10-1/2
11
11-1/2
11-1/2
12-1/2
13-1/2
14
14
15-1/2
17
17-1/2
20

1.5
1.75
1.75
1.75
2
2
2
2
2.25
2.25
2.25
2
2.25
2.3
2.5
2.5
2.75
2.75
3
3
3
3.25
3.25
3.25
3.5
3.75
3.9
3.9
4
4.2
4.3
4.5

GENERAL
WARNING: This heater is not intended for use in
hazardous atmospheres where flammable vapors,
gases, liquids, or other combustible atmospheres
are present as defined in the National Electrical
Code. Failure to comply can result in explosion or
fire.
1. Heater Construction Characteristics —
A. One-piece stainless steel clamping band.
B. Two (2) rust-resisting chrome steel sheath strip heater elements.
C. Heavy construction of clamp and quick-connect allen head
bolt allow firm grip on heaters and tight heater fit to pipe
or barrel configuration.

© 2010 Chromalox, Inc.

2. WARNING: Hazard of heater failure. Pipe or barrel
surface temperature not to exceed 800˚F.
3. Heater bands may be used individually or in multiples spaced
1/4” apart.
4. WARNING: Users should install adequate controls
and safety devices with their electric heating
equipment. Where consequences of failure may be
severe, back-up controls are essential. Although
the safety of the installation is the responsibility of
the user, Chromalox will be glad to make equipment recommendations.

INSTALLATION
WARNING: Hazard of Electric Shock. Disconnect all
power before installing heater.
1. Position slots in clamping band over terminal posts on heating
elements. Note: Terminal hardware must be removed to allow
clamping band slots to fit over terminal posts (Figure 1).
2. When heater band is correctly placed in the desired location,
compress ends of band together and insert bolt through nonthreaded trunnion socket and then into opposite threaded socket. Hand tighten (Figure 2).
3. Turn Allen head bolt with 7/32” Allen wrench to draw heater
band tight on cylinder. Ensure that there is good contact

Figure 1

between heating element and cylinder and that there is electrical clearance between the heater terminals and the clamping
band (Figure 1).
4. DANGER: Hazard of Fire. Since these heaters are capable of developing high temperatures, extreme care should be
taken to:
A. Avoid installing heaters in an atmosphere containing combustible gases and vapor.
B. Avoid contact between heater and combustible material.
C. Keep combustible materials far enough away to be free of
effects of high temperature.

Figure 2

Figure 3

WIRING
WARNING: Hazard of Electric Shock. Any installation
involving electric heaters must be effectively grounded in accordance with the National Electical Code to
eliminate shock hazard.
1. Rough-in Wiring — Wiring to heater should be to the voltage specified on heater band and in accordance with local and
National Electrical codes by a qualified person. As a guide in
determining line wire sizes see Amperes in Specifications
Table A on page 1. WARNING: Use copper conductors only.
2. Assemble terminal hardware and wiring in the order shown in
Figure 5.

3. Protection with proper size fuses and breakers is important to
minimize hazards.
WARNING: Do not exceed 25 inch pounds of torque
when tightening the hex nuts on the heater terminals. Excessive torque will result in stripping the
terminals from the refractory of the heating element.
4. For rated output for heater band, connect heating elements in
parallel. 240V elements to be run on 480V should be connected in series. When element wattages are not equal, heaters
must not be connected in series.

TESTING
DANGER: Hazard of Electric Shock or Burns. Avoid
contact of hot surfaces and live electrical terminals
during this adjustment.
1. Energize the heater and check for hot spots after the heater has
reached operating temperature. These can be identified as
bright red areas on the heating element or dark brown areas on
the clamping band. If hot spots are encountered, place a wooden block on the affected area and tap lightly with a hammer to
bring the heater in contact with the pipe or barrel surface.
2. It’s good practice to check the tightness of the clamping
band after a few hours at operation temperature. Chromalox
HTRC (Heat Trans-fer and Release Coating) is also available
for high temperature applications.

Figure 4

MAINTENANCE
WARNING: Hazard of Severe Shock. Disconnect all
power to heater before servicing or replacing
heaters.
1. For longer heater life, maintain good contact between heater
and work cylinder by periodically checking clamping band
tightness.

2. Make certain that both terminals and band are free from contact with oil, liquids or other foreign matter. Such contaminants
can cause heater failures.
3. Check for loose terminal connections and tighten if necessary.

RENEWAL PARTS IDENTIFICATION

Hex Nut
Hex Nut
Washer
Cup Washer

Washer

Allen Head Bolt

Figure 5

Model
HB-5075
HB-5080
HB-5460
HB-5414
HB-6040
HB-6075
HB-6410
HB-7010
HB-7490
HB-7412
HB-7715
HB-8013
HB-8014
HB-8415
HB-9015
HB-9217
HB-9413
HB-9416
HB-1018
HB-10226
HB-10415
HB-1120
HB-11412
HB-11417
HB-12416
HB-13418
HB-1412
HB-1425
HB-15425
HB-1725
HB-17425
HB-2030

1 Strip Heater Model
PT8X354
PT8X320
PT10X303
PT10X321
PT10X151
PT10X152
PT12X316
PT12X353
PT14X295
PT12X348
PT14X349
PT14X194
PT14X350
PT15X325
PT15X195
PT15X324
PT16X167
PT15X355
PT16X326
PT16X352
PT18X196
PT19X323
PT19X132
PT19X322
PT20X279
PT20X150
PT23X277
PT23X156
PT25X191
PT26X142
PT26X199
PT33X193

*Includes allen head bolt.
Note: Number in ( ) indicates quantity of same part number used.

1

Strip Heater P/N

286-117673-001 (2)
286-117673-002 (2)
286-117673-003 (2)
286-117673-004 (2)
286-117673-005 (2)
286-117673-006 (2)
286-117673-007 (2)
286-117673-009 (2)
286-117673-010 (2)
286-117673-011 (2)
286-117673-012 (2)
286-117673-013 (2)
286-117673-014 (2)
286-117673-015 (2)
286-117673-016 (2)
286-117673-017 (2)
286-117673-018 (2)
286-117673-019 (2)
286-117673-020 (2)
286-117673-021 (2)
286-117673-022 (2)
286-117673-023 (2)
286-117673-024 (2)
286-117673-025 (2)
286-117673-026 (2)
286-117673-027 (2)
286-117673-028 (2)
286-117673-029 (2)
286-117673-030 (2)
286-117673-031 (2)
286-117673-032 (2)
286-117673-033 (2)

2

Clamping Band* P/N
011-110109-056
011-110109-001
011-110109-002
011-110109-002
011-110109-004
011-110109-004
011-110109-006
011-110109-008
011-110109-010
011-110109-010
011-110109-059
011-110109-011
011-110109-011
011-110109-012
011-110109-014
011-110109-015
011-110109-016
011-110109-016
011-110109-018
011-110109-019
011-110109-020
011-110109-022
011-110109-024
011-110109-024
011-110109-026
011-110109-028
011-110109-030
011-110109-030
011-110109-033
011-110109-038
011-110109-040
011-110109-045

Limited Warranty:
Please refer to the Chromalox limited warranty applicable to this product at
http://www.chromalox.com/customer-service/policies/termsofsale.aspx.

2150 N. RULON WHITE BLVD., OGDEN, UT 84404
Phone: 1-800-368-2493
www.chromalox.com



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