®
Chromalox
SERVICE REFERENCE
Installation
DIVISION
SALES
4
SECTION PTH
(Supersedes PD422-3)
and
REFERENCE
PD422-4
161-056676-001
Operating Instructions
DATE
NOVEMBER, 2004
Type PTH
Over-the-Side Immersion Heaters
1-3/4”
Leadwires w/ Ground
Specifications
Dimensions (In.)
Approx.
Wt.
(Lbs.)
Model
Number
Volts
(1 Ph)
kW
W/In2
3’ PVC Flexible Conduit
A
B
PTH-101
PTH-102
120
240
1
1
21
21
14
14
8
8
4
4
A
Mounting Plate
5 x 1-1/2” Wide with
(2) Holes
PTH-202
PTH-204
240
480
2
2
31
31
21
21
11
11
4
4
4” Center to Center
4, 6 and 9 kW
Heaters Equipped
with Two (2)
PTH-302
PTH-304
240
480
3
3
32
32
26
26
16
16
5
5
B
Heated
PTH-402
PTH-404
240
480
4
4
34
34
20
30
20
20
5
5
1-1/8” Spacers
PTH-602
PTH-604
240
480
6
6
34
34
40
40
30
30
6
6
1, 2 and 3 kW
Heaters Equipped
with One (1)
PTH-902
PTH-904
240
480
9
9
34
34
54
54
44
44
8
8
1-1/8” Spacer
Figure 1
Figure 2
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.
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.
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.
Chromalox type PTH over-the-side immersion heaters are
especially suited for use in plating tanks, rinse tanks and other
aqueous solutions.
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.
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.
Download from Www.Somanuals.com. All Manuals Search And Download.
OPERATION
1. Do not operate heater at voltages in excess of that stamped on
the heater since excess voltage will shorten heater life.
minimum of 2” of solution
2. Always maintain
a
If the heater is not properly submerged, the heating
elements will overheat and could result in a fire or
damaged equipment.
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.
3. In an electroplating operation the heaters are not under any cir-
cumstances to be placed between the electrodes and the work.
MAINTENANCE
1. Heaters should be checked periodically for coatings and corro-
sion, and cleaned if necessary.
2. Tank should be checked regularly for sediment around the end
of heater as this sediment can act as an insulator and shorten heater
life.
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
70.
Download from Www.Somanuals.com. All Manuals Search And Download.
Limited Warranty:
Please refer to the Chromalox limited warranty applicable to this product at
2150 N. RULON WHITE BLVD., OGDEN, UT 84404
TA - Q0 - EF
Litho in U.S.A.
Phone: 1-800-368-2493
Download from Www.Somanuals.com. All Manuals Search And Download.
|