Specifications

2
Read All Warnings, Cautions and Instructions Carefully Before Operating This Thermolyne Furnace.
IMPORTANT INFORMATION
This manual contains important operating and safety information. You must carefully
read and understand the contents of this manual prior to the use of this equipment.
Table of Contents
Safety Information.........................................................................................................................3
Alert Boxes ..................................................................................................................................3
Warnings......................................................................................................................................3
Introduction..................................................................................................................................4
General Specifications ..............................................................................................................4
Intended Use ...........................................................................................................................4
Principles of Operation..............................................................................................................5
Unpacking....................................................................................................................................9
Installation....................................................................................................................................9
Single Setpoint Temperature Control (Automatic) Operation (Models F30420C and F30428C) .......10
Controls and Displays..............................................................................................................10
Adjusting Furnace Setpoint Temperature.................................................................................11
Tuning...................................................................................................................................11
Changing Temperature Indication............................................................................................12
Setting the High Alarm Temperature (Over Temperature Protection OTP) ..................................12
Alarm Indications.....................................................................................................................12
Operation of 2 Ramp & 2 Dwell Programmable Models (F30420C-70, F30428C-70, F30420C-60-70,
F30428C-60-70) ........................................................................................................................13
Controls and Displays..............................................................................................................13
Parameters.............................................................................................................................14
Tuning Your Controller............................................................................................................15
Operating the Controller..........................................................................................................16
Single Set Point Operation..............................................................................................16
Programming Controller ..................................................................................................16
Implementing Programs ..........................................................................................................17
8 Ramp & 8 Dwell Multi-Programmable Models (Models F30430CM, F30438CM, F30430CM-60,
F30438CM-60)...........................................................................................................................19
Controls and Displays..............................................................................................................19
Parameters.............................................................................................................................20
Tuning Your Controller............................................................................................................21
Operating the Controller..........................................................................................................22
Single Set Point Operation..............................................................................................22
Programming Controller ..................................................................................................22
Implementing Programs ..........................................................................................................24
Program Execution.........................................................................................................24
Parameter Change While Running...................................................................................24
Loop Count....................................................................................................................24
Program Hold .................................................................................................................24
Program Reset ...............................................................................................................24
Installation and Operation of Air Control........................................................................................25
Furnace Loading ........................................................................................................................26
Preventative Maintenance...........................................................................................................26
Problem Solving.........................................................................................................................27
Maintenance and Servicing .........................................................................................................28
To Replace a Heating Element.................................................................................................29