TABLE OF CONTENTS

GENERAL

3

Introduction

3

Installation

3

Oil Filtering

3

Operation

3

Cleaning

3

Lighting Pilot

3

Specifications

3

Gas Data

3

Tools

3

Standard

3

REMOVAL AND REPLACEMENT OF PARTS

4

Covers and Panels

4

Door

4

Front Panel

4

Burners

4

Thermostat

5

High Limit

6

Thermopile

6

Pilot Orifice

7

Combination Valve

7

Fry Tank

8

SERVICE PROCEDURES AND ADJUSTMENTS

9

Millivolt Controls Test

9

Thermostat Calibration

9

Calibration Steps

9

Pilot Adjustment

10

Burners, Nozzles and Orifices

10

Burners

10

Nozzles and Orifices

10

Combination Valve Regulator Adjustment

11

ELECTRICAL OPERATION

12

Control System Description

12

System Condition Quick Check Procedures

12

Schematic

13

Component Function

13

TROUBLESHOOTING

14

© VULCAN-HART, 2004

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Vulcan-Hart GHF91G ML-135503, GHF90G ML-135504 service manual Table of Contents