Chromalox Electric Heater PTHT 101 User Manual

®
Chromalox  
SERVICE REFERENCE  
Installation, Operation  
and  
Maintenance Instructions  
DIVISION  
SALES  
4
SECTION PTHT  
(Supersedes PD439-1)  
161-562284-001  
REFERENCE  
PD439-2  
DATE  
JULY, 1998  
Titanium Over-the-Side Immersion Heater  
Type PTHT  
Flexible PVC  
Specifications  
Conduit  
Dimensions (In.)  
Volts  
(Single  
Phase)  
Approx.  
Wt.  
(Lbs.)  
Model  
Number  
kW  
W/In2  
4-3/4”  
Leadwires  
w/ Ground  
A
B
Terminal  
Box  
PTHT-101  
PTHT-102  
120  
240  
1
2
3
4
6
8
19  
19  
21  
21  
22  
22  
13  
21  
26  
31  
42  
53  
6
6
7
Mtg. Bracket  
PTHT-202  
PTHT-204  
240  
480  
90˚ Bend  
12  
17  
22  
33  
44  
PTHT-302  
PTHT-304  
240  
480  
8
A
PTHT-402  
PTHT-404  
240  
480  
9
B
PTHT-602  
PTHT-604  
240  
480  
12  
14  
PTHT-802  
PTHT-804  
240  
480  
9-3/16”  
GENERAL  
DANGER: This heater is not intended for use in haz-  
ardous 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.  
against failure by sheath corrosion if such failure  
is the result of operating beyond our control.  
1. Heater construction characteristics.  
A. High quality resistance wire held in place by compacted  
magnesium oxide in titanium sheath.  
Chromalox type PTHT over-the-side immersion heaters are  
especially suited for use in plating tanks, rinse tanks and other  
aqueous solutions.  
B. Medium watt densities.  
C. Vapor tight 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.  
WARNING: 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 solution, and controls  
which he maintains on the process. Chromalox  
cannot warrant any electric immersion heater  
WARNING: Users should install adequate controls and safe-  
ty devices with their electric heating equipment. Where the  
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  
4. WARNING: Heated section (See Figure 1, “B” Dimension)  
must be totally immersed at all times. If the heater is not properly  
submerged, it will overheat and damage the heating element and  
create a possible fire hazard due to excessive sheath temperatures.  
5. Heater must not be operated in sludge.  
WARNING: Hazard of Electrical Shock. Disconnect all  
power before installing heater.  
1. Before installing the type PTHT heater, inspect it thoroughly for  
possible damage which may have occured during shipment. Also  
check to insure that the line voltage is the same as that stamped  
on the heater nameplate.  
6. 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 com-  
bustible gases and vapors.  
2. Where work will pass over or near equipment, additional pro-  
tection such as a metal guard may be needed.  
3. To resist buoyancy and to keep the heater in close profile with  
tank wall, a metal bracket with two mounting holes has been  
provided.  
B. Avoid contact between heater and combustible materials.  
C. Keep combustible materials for enough away to be free of  
the effects of high temperatures.  
© 2010 Chromalox, Inc.  
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