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1-3/4"
A
B
Heated
Figure 1
FIRE/EXPLOSION HAZARD. This heater is not intend-
ed for use in hazardous atmospheres where flamma-
ble vapors, gases, liquids or other combustible atmos-
pheres are present as defined in the National
Electrical Code. Failure to comply can result in per-
sonal injury or property damage.
Chromalox type PTH over-the-side immersion heaters are
especially suited for use in plating tanks, rinse tanks and other
aqueous solutions.
IMPORTANT: It is the responsibility of the purchaser
of the heater to make the ultimate choice of sheath
material based upon his knowledge of the chemical
composition of the corrosive solution, character of the
materials entering the solution, and controls which he
maintains on the process.
Sheath corrosion can result in a ground fault which,
depending upon the solution being heated, can cause
an explosion or fire.
© 2010 Chromalox, Inc.
Chromalox
Installation
and
Operating Instructions
Over-the-Side Immersion Heaters
Leadwires w/ Ground
3' PVC Flexible Conduit
4, 6 and 9 kW
Heaters Equipped
with Two (2)
1-1/8" Spacers
1, 2 and 3 kW
Heaters Equipped
with One (1)
1-1/8" Spacer
Figure 2
®
Type PTH
Specifications
Model
Number
PTH-101
PTH-102
Mounting Plate
5 x 1-1/2" Wide with
PTH-202
(2) Holes
PTH-204
4" Center to Center
PTH-302
PTH-304
PTH-402
PTH-404
PTH-602
PTH-604
PTH-902
PTH-904
GENERAL
Heater Construction Characteristics.
A. High quality resistance wire held in place by compacted mag-
nesium oxide in type 316 passivated stainless steel sheath.
B. Medium watt densities.
C. Vapor resistant junction box with 3' PVC flexible conduit with
ground wire.
D. Spacer bar prevents elements from touching tank wall.
E. Flat profile consumes little tank work area.
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 consequences of failure could
result in personal injury or property damage, back-up
controls are essential.
SERVICE REFERENCE
4
DIVISION
SECTION
SALES
(Supersedes PD422-3)
REFERENCE
NOVEMBER, 2004
DATE
Dimensions (In.)
Volts
(1 Ph)
kW
W/In
2
A
120
1
21
14
240
1
21
14
240
2
31
21
480
2
31
21
240
3
32
26
480
3
32
26
240
4
34
20
480
4
34
30
240
6
34
40
480
6
34
40
240
9
34
54
480
9
34
54
PTH
PD422-4
161-056676-001
Approx.
Wt.
B
(Lbs.)
8
4
8
4
11
4
11
4
16
5
16
5
20
5
20
5
30
6
30
6
44
8
44
8
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Summary of Contents for Chromalox PD422-4
-
Page 1: Operating Instructions
National Electrical Code. Failure to comply can result in per- sonal injury or property damage. Chromalox type PTH over-the-side immersion heaters are especially suited for use in plating tanks, rinse tanks and other aqueous solutions. - Page 2 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 accordance with the National Electrical Code, NFPA 1. Before installing the PTH heater, inspect it thoroughly for possible damage which may have occured during shipment.
- Page 3 1. Do not operate heater at voltages in excess of that stamped on the heater since excess voltage will shorten heater life. 2. Always maintain minimum above the heated portion of the element (See Figure 1, “B” Dimension) to prevent exposure of the effective heated length. If the heater is not properly submerged, it may overheat and shorten heater life.
- Page 4 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 TA - Q0 - EF Phone: 1-800-368-2493 www.chromalox.com Litho in U.S.A.