Chromalox PD412-5 Manuel d'utilisateur télécharger pdf

Chromalox

DIVISION

SECTION

CIT

SALES

REFERENCE

DATE

SERVICE REFERENCE

Installation

and

OPERATING INSTRUCTIONS

PD412-5

161-049179-001

MAY, 1999

(Supersedes PD412-4)

Type CIT

Cast Iron, Metal Melting, Immersion Heaters

Maximum Melt Temperature — 950˚F

GENERAL

WARNING: Hazard of Shock. Disconnect all power

before installing, servicing or replacing heaters.

Chromalox Cast-Iron Immersion Heaters are generally used

for metal-melting applications such as solder, lead, tin, stereotype

metal, babbitt (with 4% or less copper) and other soft metals

where maximum working temperature is 950 ˚F.

Note: Not suitable for immersion in zinc or aluminum.

1. Heater Construction Characteristics —

A. High quality resistance wire held in place by compacted mag-

nesium oxide in heavy wall steel sheath cast in iron.

B. Large heat output at relatively low watt densities.

C. Excellent heat transfer.

D. A rugged, cast iron terminal box protects the terminals against

spillage and abuse.

WARNING: Users should install adequate back-up

controls and safety devices with their electric

heating equipment. Where the consequences of

failure may be severe, back-up controls are essen-

tial, including GFCI (Ground Fault Circuit

Interrupters). Although the safety of the installa-

tion is the responsibility of the user, Chromalox

will assist in identifying equipment options.

INSTALLATION

1. Before installing the type CIT 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. CAUTION: 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.

WARNING: When melting solids by direct immersion, a

surface vent should be provided to allow gases to

escape.

A. Over-the-Side

Models CIT-1612 and CIT-1619 (see Figure 1 - for use in flat

bottomed and straight-sided vessels); CIT-2219 and CIT-23 19

(See Figure 2 - for use in sloping vessels) are designed for over-

the-side installation.

1. To resist buoyancy of heater in heavy metals, securely mount

heater to metal crucible by clamping.

CAUTION: Do not support or suspend heater by the

tubular section adjacent to the terminal box as the

tubular section will be damaged by bending.

Displacement Dimensions (In.)

Volume

Model Volts kW (In

)ABCDEF

CIT-218 240 3 57 — 18 4-5/8 2 17-3/8 2

CIT-1612 240 5 135 12-1/4 16 2 9 10 3

CIT-1619 240 5 180 19-1/4 16 2 6 17 3

CIT-2219 240 5 145 18-1/2 12-1/2 — 6-1/2 14-1/2 —

CIT-2319 240 10 180 19 15-1/4 — 9 15 —

Specifications

Type CIT-1612 and CIT-1619

(Figure 1)

Effective Heated Length

1” Conduit

Opening

1” Conduit

Opening

Heated

Length

1” Conduit

Opening

Type CIT-2219 and CIT-2319

(Figure 2)

Tpye CIT-218

(Figure 3)

2 Holes

9/16” Dia.

3-1/8”

4-5/8”

3-1/4”

2-1/4”

Dia.

1-1/2”

5/8”

Gasket - For use with CIT-218

(Figure 4)

Heated

Length

1 2

Résumé du contenu

Page 1 - Chromalox

Chromalox®DIVISION 4 SECTION CITSALESREFERENCEDATESERVICE REFERENCEInstallationandOPERATING INSTRUCTIONSPD412-5

Page 2 - INSTALLATION

B. Through-the-WallModel CIT-218 (Figure 3) is designed for through-the-wallinstallation.1. To install, drill three holes in side of crucible at prope

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Chromalox PD412-5 Manuel d'utilisateur

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