Carbolite CTF - User Manual

Installation, Operation &
Maintenance Instructions
1700-1800°C Tube Furnaces
types CTF & TZF
This manual is for the guidance of operators of the above Carbolite products
and should be read before the furnace is connected to the electricity supply.
CONTENTS
page section
1.0 Symbols & Warnings 1
2.0 Installation 3
3.0 Operation 6
4.0 Maintenance 10
5.0 Repairs & Replacements 11
6.0 Fault Analysis 14
7.0 Circuit Diagram 14
8.0 Fuses & Power Control 16
9.0 Specifications 17
Manuals for the furnace controller and overtemperature controller are
supplied separately.
Please read the controller manuals before operating the furnace.
1.0
MF32-3.13

Summary

Symbols & Warnings

Switches and Lights

Warning Symbols

Details safety symbols for electrical shock and hot surfaces.

Installation

Unpacking & Handling

Siting & Setting Up

Fitting the Heating Elements

Procedures for installing the fragile heating elements carefully.

Fitting the Thermocouples

Electrical Connections

Details on connecting the furnace to the electrical supply safely.

Inserting a Tube

Operation

Operating Cycle (CTF models)

Steps for operating the furnace with CTF control models.

Operating Cycle (TZF)

Steps for operating the furnace with TZF control models.

3-zone Control Methods

General Operating Advice

Operator Safety

Safety precautions for handling furnace materials and operation.

Tube Life

Thermocouples - Warnings

Repairs & Replacements

Safety Warning - Disconnection from Supply

Crucial safety step to disconnect power before repairs.

Safety Warning - Refractory Fibrous Insulation

Precautions for handling insulating fibres and potential health hazards.

Temperature Controller Replacement

Fuse Replacement

Thermocouple Replacement

Insulation Replacement

Element Installation & Replacement

Step-by-step guide for installing/replacing heating elements.

Fault Analysis

Furnace Does Not Heat Up

Troubleshooting steps when the furnace fails to reach temperature.

Furnace Overheats

Diagnosing and resolving issues causing furnace overheating.

Circuit Diagram

Example - CTF 17;-;300 single phase

Example - TZF 17;-;600 Three-phase

Fuses & Power Control

Fuses

Power Control

Carbolite CTF Specifications

General

Brand	Carbolite
Model	CTF
Category	Furnace
Language	English