Chromalox TBL installation instructions PD433, General, Installation, Chromalox, 161-058061-001

Chromalox®

Installation Instructions

and

RENEWAL PARTS IDENTIFICATION

SERVICE REFERENCE

DIVISION 4	SECTION TBL
SALES	PD433
REFERENCE
	161-058061-001
DATE MARCH, 1984

Type TBL and TBL-A

Over-The-Side Salt Bath Heaters

3/4" Conduit Hub 4

6" Max.

Heated

A

2-5/8

B	3-19/32
3/4

	Model				Dimensions (In.)
Steel		INCOLOY®	Volts	kW
Sheath		Sheath	(Single Phase)	20 W/In2	A	B
TBL-1301		TBL-A-131		3	11-1/8	13-7/8
TBL-4501		TBL-A-451	240 or 480	4.5	11-1/8	15
TBL-6001		TBL-A-601		6	11-1/8	20-5/16
TBL-7501		TBL-A-751		7.5	14-5/8	25-9/16

GENERAL

Chromalox type TBL and TBL-A over-the-side immersion heaters are designed primarily for salt baths but are available in a variety of sheath materials and watt densities for most liquids and viscious mate- rials..

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 corrosive solution, character of the materials entering the solution, and controls which he maintains on the process. Chromalox cannot warrant any electric immersion heater against failure by sheath corrosion if such failure is the result of operating conditions beyond our control.

1.Heater Construction Characteristics

A.High quality Nichrome resistance wire held in place by com- pacted Magnesium Oxide in various sheath materials.

B.Medium watt densities.

C.Steel terminal box painted with heat and acid-resistant paint.

D.Lightweight yet heavy duty.

E.Riser type construction puts the heat at the bottom inducing natural “stirring action” and evenly distributed temperatures.

CAUTION: 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 be glad to make equipment recommendations.

INSTALLATION

1.Before installing the type TBL heater, inspect it for possible dam- age which may have occurred during shipment. Also, check to insure that the line voltage is the same as that stamped on the nameplate.

2.IMPORTANT: Mount heater in the tank so that the liquid level will always be above the effective heated portion of the heater. If the heater is not properly submerged, it will overheat and damage the heating elements and create a possible fire hazard due to exces- sive sheath temperatures.

3.Where work will pass over or near equipment, additional protec- tion, such as a metal guard, may be needed.

4.In an electroplating operation the heaters are not, under any cir- cumstance, to be placed between the electrodes and the work.

5.When melting solids by direct immersion, a surface vent should be provided to allow gases to escape. Operate the heater on half volt- age until melted material completely covers the heater area.

6.A drip loop is recommended to minimize passage of moisture along wiring into terminal box and connections.

7.DANGER: Hazard of Fire. Since these heaters are capable of developing high temperatures, extreme care should be taken to:

A.Use Explosion-resistant terminal housings in hazardous loca- tions. See Chromalox catalog for selection of explosion-resis- tant terminal enclosures for hazardous locations.

B.Avoid contact between heater and combustible material.

C.Keep combustible materials far enough away to be free of the effects of high temperatures.

© 2010 Chromalox, Inc.