AGI GGH-8390 Guide

Read this manual before using product. Failure to
follow instructions and safety precautions can
result in serious injury, death, or property
damage. Keep manual for future reference.
Part Number: GNA-2069 R1
Revised: August 2022
Original Instructions
Low Temperature Upstream Heater
VP and NG-Fired Heater
Installation, Operation, and Parts Manual
This manual applies to:
GGH-8390/GGH8390-50
INSTALLATION AND WIRING MUST BE IN
ACCORDANCE WITH CEC, NEC, AND LOCAL
ELECTRICAL CODES

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This product has been designed and manufactured to meet general engineering standards. Other local
regulations may apply and must be followed by the operator. All personnel must be trained in the correct
operational and safety procedures for this product. Use the sign-off sheet below to record initial and periodic
reviews of this manual with all personnel.
Date Employee Name and Signature Employer Name and Signature

4 GNA-2069 R1
LOW TEMPERATURE UPSTREAM HEATER – VP AND NG-FIRED HEATER

LOW TEMPERATURE UPSTREAM HEATER – VP AND NG-FIRED HEATER
GNA-2069 R1 5
CONTENTS
1. Introduction ............................................................................................................................................ 7
1.1 Product Information.................................................................................................................. 7
1.2 Intended Use ............................................................................................................................. 8
1.2.1 Misuse ........................................................................................................................ 8
2. Safety....................................................................................................................................................... 9
2.1 Safety Alert Symbol and Signal Words...................................................................................... 9
2.2 General Safety Information....................................................................................................... 9
2.3 Heater Safety........................................................................................................................... 10
2.4 Gas Leak Hazards..................................................................................................................... 10
2.5 Grain Bin Fires ......................................................................................................................... 11
2.6 Drives and Lockout/Tagout Safety .......................................................................................... 12
2.7 Personal Protective Equipment............................................................................................... 12
2.8 Safety Equipment .................................................................................................................... 12
2.9 Safety Decals ........................................................................................................................... 13
2.9.1 Decal Installation/Replacement............................................................................... 13
2.9.2 Safety Decal Locations and Details .......................................................................... 13
3. Features................................................................................................................................................. 15
3.2 Upstream Heater — Underside View...................................................................................... 16
3.3 Fuel Train, Burner, Stablizing Frame, and Control Box Assemblies ........................................ 17
3.4 Burner Assembly ..................................................................................................................... 18
3.5 Control Box Assembly ............................................................................................................. 19
4. Installation ............................................................................................................................................ 20
4.1 Installation Safety.................................................................................................................... 20
4.2 Check Shipment....................................................................................................................... 20
4.3 Requirements for Canada ....................................................................................................... 20
4.4 Electrical Connection............................................................................................................... 21
4.4.1 Field and Control Wiring Entry................................................................................. 21
4.4.2 Disconnect ................................................................................................................ 22
4.4.3 Incoming Power Supply............................................................................................ 22
4.4.4 Grounding................................................................................................................. 22
4.5 Fuel Supply .............................................................................................................................. 23
4.6 Heater Position Requirement.................................................................................................. 25
4.7 Installation of Heater and Heater Components...................................................................... 26
4.7.1 Install the Heater...................................................................................................... 26
4.7.2 Adjust Burner Side Plates......................................................................................... 26
4.7.3 Install the Guard and Control Box............................................................................ 28
4.7.4 Install the Orifice ...................................................................................................... 29
4.7.5 Install Air Switch Line ............................................................................................... 31
4.7.6 Temperature Probe Installation............................................................................... 33
4.8 Connect the Gas Supply .......................................................................................................... 34
4.9 Adjust the Regulator ............................................................................................................... 35
4.10 Open Manual Shut Off Valves to the heater ........................................................................ 35
4.11 Programming of Penn & Emerson Electronic Controllers .................................................... 36
4.12 Installation and Programming of HONEYWELL Electronic Controller .................................. 37
5. Operation .............................................................................................................................................. 41
5.1 Operation Safety ..................................................................................................................... 41

LOW TEMPERATURE UPSTREAM HEATER – VP AND NG-FIRED HEATER
6 GNA-2069 R1
5.2 Pre-Start Check........................................................................................................................ 41
5.3 Start-up and Operation ........................................................................................................... 43
5.4 Upstream Supplemental Heater Temperature Rise ............................................................... 44
5.5 Flame Inspection ..................................................................................................................... 50
5.6 Temperature Control............................................................................................................... 50
5.7 Shutdown ................................................................................................................................ 50
5.8 Storage Instructions ................................................................................................................ 50
6. Maintenance ......................................................................................................................................... 51
6.1 Maintenance Safety ................................................................................................................ 51
6.2 Maintenance Schedule............................................................................................................ 51
6.3 Visually Inspect the Upstream Heater .................................................................................... 52
6.4 Annual Maintenance ............................................................................................................... 52
6.5 Fuel Train and Supply Gas Leak Check.................................................................................... 52
6.6 Pressure Regulator Maintenance............................................................................................ 53
6.7 Solenoid Valve Maintenance................................................................................................... 53
6.8 Electrical Maintenance............................................................................................................ 53
7. Troubleshooting.................................................................................................................................... 54
7.1 General Troubleshooting......................................................................................................... 54
7.2 Heater Diagnostic .................................................................................................................... 54
7.3 Symptoms/Causes/Solutions .................................................................................................. 57
8. Appendix ............................................................................................................................................... 59
8.1 FENWAL-Related Issues........................................................................................................... 59
8.2 Electrical Schematics ............................................................................................................... 63
8.2.1 Interlocking Heater to Fan ....................................................................................... 65
8.3 Parts Lists................................................................................................................................. 66
9. Warranty ............................................................................................................................................... 70

GNA-2069 R1 7
1. Introduction
Thank you for your purchase. Follow the instructions in this manual for safe use of this upstream
heater. Following proper operation and maintenance will help to keep the upstream heater running in
optimal condition.
Keep this manual handy for frequent reference and to review with new personnel. A sign-off form is
provided on the inside front cover for your convenience. If any information in this manual is not
understood or if you need additional information, please contact AGI or your representative for
assistance.
This manual should be regarded as part of the equipment.
1.1. Product Information
Always give your dealer the following product information when ordering parts or requesting service. Please
record the product information in the table below for easy reference.
Local Dealer’s Name and
Address: Phone:
Local Contractor’s Name: Phone:
Service Contractor’s Name: Phone:
Purchase Date: Installation Date:
Model Number: Serial Number:
Fuel Type: Number of Blowers:
Wiring Diagram Drawing Number:
LOW TEMPERATURE UPSTREAM HEATER – VP AND NG-FIRED HEATER 1. INTRODUCTION

8 GNA-2069 R1
1.2. Intended Use
The upstream heater is intended for use as listed below and described throughout this manual. Use in any other
way is considered contrary to the intended use and is not covered by the warranty.
Intended use for the upstream heater
• Designed for low temperature drying/conditioning of farm crops.
• Heater to be used with 1750 rpm centrifugal fans only.
• Use outdoors only.
1.2.1 Misuse
Do not install/use the upstream heater for/with:
• applications other than as a heater for drying farm crops.
• heating buildings, sheds, barns, etc.
• finely milled grain dust.
1. INTRODUCTION LOW TEMPERATURE UPSTREAM HEATER – VP AND NG-FIRED HEATER

GNA-2069 R1 9
2. Safety
2.1. Safety Alert Symbol and Signal Words
This safety alert symbol indicates important safety messages in this manual. When you see
this symbol, be alert to the possibility of injury or death, carefully read the message that
follows, and inform others.
Signal Words: Note the use of the signal words DANGER,WARNING,CAUTION, and NOTICE with the safety
messages. The appropriate signal word for each message has been selected using the definitions below as a
guideline.
Indicates an imminently hazardous situation that, if not avoided, will result in serious injury or
death.
Indicates a hazardous situation that, if not avoided, could result in serious injury or death.
Indicates a hazardous situation that, if not avoided, may result in minor or moderate injury.
Indicates a potentially hazardous situation that, if not avoided, may result in property damage.
2.2. General Safety Information
Read and understand all safety instructions, safety decals, and manuals and follow them when operating or
maintaining the equipment.
• Owners must give instructions and review the information initially and annually with
all personnel before allowing them in the work area. Untrained users/operators
expose themselves and bystanders to possible serious injury or death.
• Use for intended purposes only.
• Do not modify the upstream heater in any way without written permission from the manufacturer and is not
covered by the warranty.
• Follow a health and safety program for your worksite. Contact your local occupational health and safety
organization for information.
• Follow applicable local codes and regulations.
LOW TEMPERATURE UPSTREAM HEATER – VP AND NG-FIRED HEATER 2. SAFETY

10 GNA-2069 R1
2.3. Heater Safety
Fire and explosion hazards, as well as carbon monoxide poisoning could occur if the heater is
misused. To avoid serious injury or death:
• Shut off and lock out or disconnect power and close valve at
gas source before inspecting or servicing the heater, or when
not in use.
• Do not operate the heater if not properly connected to an
aeration fan.
• Use the heater only with the gas types intended, connecting
alternate fuel sources to the heater can result in fires.
• Do not store or use gasoline or other flammable vapors and
liquids in the vicinity of this or any other appliance.
• Do not remove covers or screens, touch, or service internal
components during operation.
• After burner shutoff, allow the fan to run for five minutes
before removing cover(s).
• Do not use the heater where a high concentration of grain
dust, such as milled grain dust or, flammable liquids or vapors
exist
• Never allow anyone to enter the grain bin when a fan and
heater is operating. Gases given off by the burner (including
carbon monoxide and carbon dioxide) could cause death.
• Never use the heater to heat a building, shed, barn, etc.
because of the hazards posed by the flame and by the output
of carbon monoxide.
2.4. Gas Leak Hazards
If You Smell Gas:
• Turn off gas at the source if possible.
• Do not try to light or relight any appliance.
• Extinguish any flames and remove any sources of ignition from the vicinity of the bin.
• Do not touch any electrical switch.
• Evacuate all personnel from the vicinity of the source of the smell.
• Immediately call your gas supplier. Follow the gas supplier’s instructions.
• If you cannot reach your gas supplier, call the fire department.
2. SAFETY LOW TEMPERATURE UPSTREAM HEATER – VP AND NG-FIRED HEATER