Chromalox®
Installation, Operation
and
MAINTENANCE INSTRUCTIONSDIVISION 4 |
| SECTION | |
SALES | (Supersedes PD441) |
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REFERENCE | |||
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Type MTO-LT
Pipe Insert Immersion Heater
A
B
Max.Spacer
Expansion Gap
I.D. Min.
Type E2
Enclosure
Pipe, Support &
Tank (by others)
3/4” Pipe Outlet
Expansion Gap
GENERAL
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| Dim. (In.) | Pipe | |
Model | kW | Volts | Phase | A | B | Thd. |
4 | 240 | 1 | 127 | 120 | 2 | |
4 | 480 | 1 | 127 | 120 | 2 | |
5 | 240 | 1 | 163 | 156 | 2 | |
5 | 480 | 1 | 163 | 156 | 2 | |
7.5 | 240 | 1 | 211 | 204 | 2 | |
7.5 | 480 | 1 | 211 | 204 | 2 | |
11.5 | 480 | 1 | 319 | 312 | 2 | |
13 | 480 | 1 | 367 | 360 | 2 | |
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WARNING: Calculate and allow for thermal expansion. Pipe insert will expand upon heating. The rear end of the pipe insert must remain free from the tank wall. Heating elements will also expand upon heating and must not extend to the end of the pipe insert.
Chromalox type
WARNING: It is the responsibility of the purchaser of the heater to make
the ultimate choice of pipe material based upon his knowledge of the chemical composition of the corrosive solution, character of the material entering the solution and controls which he maintains on the process. Chromalox cannot warrant any electric immersion heater against failure, if such failure is the result of corrosion due to improper material selec- tion by the user.
1.Heater Construction Characteristics:
A.High quality resistance wire held in place by compacted Magnesium Oxide Refractory enclosed in an Incoloy® sheath.
B.Low to High Watt densities.
C.Explosion
WARNING: Users should install adequate controls and safety 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 assist in identifying equipment options.
INSTALLATION
WARNING: Hazard of Shock. Disconnect all power before installing heater.
Expected Low
This Portion of Heater Above Liquid Level and
1. | Before installing, check your type |
2. | for any damage that may have occurred during shipment. |
Check to insure that the line voltage is the same as that stamped | |
3. | on the nameplate. |
Do not bend the heating elements. If bending is necessary, | |
| consult factory. |
4. | IMPORTANT: Mount heater in the tank so that the liquid level |
Level of Liquid
Exposed to Air Will Lead to Premature Burnout of Element
WRONG
RIGHT
will always be above the effective heated portion of the heater (see |
Figure 1). If the heater is not properly submerged, it may overheat |
and damage the heating elements and create a possible fire hazard |
due to excessive sheath temperatures. |
5. Where work will pass over or near equipment, additional protec- |
tion such as a metal guard may be needed. |
Expected Maximum
Sediment Level
Note: Locate Heater as low as possible for maximum liquid storage capacity. Heat does not move downward.
Figure 1 - Open Tank Installation
© 2010 Chromalox, Inc.