GSi PNEG-012 Series Owner's manual

PNEG-012
Vane Axial Heater
Installation and Operation
Model #:
Owner’s Manual
PNEG-012
Date: 10-30-09

2PNEG-012 Vane Axial Heater
Heater Check List
1. All wire connections
2. Spark plug gap 0.125
3. Pipe train tightness and gas leaks
4. Flame sensor tight
5. Fuse in place, extra fuse provided
6. Time delay reset
7. Indicator light
8. Pressure gauge
9. Regulator adjusted
10. Shut off valve operates correctly
11. Vapor high-limit
12. Unit cycles ON to OFF
13. Heat rise even across transition
14. Unit cycles high to low (high-low only)
15. Modulating valve holds temperature within 1° (mod units only).
16. All decals and serial number tag
17. Aesthetic appearance
18. Manual
Tester Signature:___________________________
Date: ____________________________________

Table of Contents
PNEG-012 Vane Axial Heater 3
Contents
Chapter 1 Safety .................................................................................................................................................. 4
Safety Guidelines ............................................................................................................................... 4
Introduction ........................................................................................................................................ 5
Chapter 2 Safety Decals ..................................................................................................................................... 6
Roof Damage Warning and Disclaimer .............................................................................................. 6
Heater Access Door Decals ............................................................................................................... 7
Control Box Decals ............................................................................................................................ 8
Chapter 3 Specifications .................................................................................................................................... 9
Heater Specifications ......................................................................................................................... 9
Chapter 4 Installation ....................................................................................................................................... 10
Fuel Connection ............................................................................................................................... 10
Liquid Propane Models .................................................................................................................... 10
Propane Vapor Models .................................................................................................................... 10
Natural Gas Models ......................................................................................................................... 10
Standard Heater Electrical Installation ............................................................................................. 10
Standard Heater - Second Heater Installation ................................................................................. 12
Deluxe Heater Electrical Installation ................................................................................................ 13
Deluxe Heater - Second Heater Installation ..................................................................................... 14
Bin Configuration .............................................................................................................................. 15
Transition High-Limit Installation ...................................................................................................... 15
Plenum Thermostat Mounting .......................................................................................................... 16
Heater Setup .................................................................................................................................... 17
Chapter 5 Operation ......................................................................................................................................... 18
Operating Temperature Table .......................................................................................................... 18
Cycling Heater Operation ................................................................................................................. 18
Time Delay Operation - Standard Heater.......................................................................................... 19
High-Low Heater Operation ............................................................................................................. 20
Modulating Valve Operation ............................................................................................................. 21
Adjusting the Vaporizer .................................................................................................................... 22
BTUs per Gauge Pressure (PSI) - Propane Models (Approximate) ................................................. 23
BTUs per Gauge Pressure (PSI) - Natural Gas Models (Approximate) ........................................... 24
Chapter 6 Service .............................................................................................................................................. 25
Chapter 7 Troubleshooting - Standard Heater................................................................................................ 26
Chapter 8 Wiring Diagrams .............................................................................................................................. 27
Standard Heater Wiring .................................................................................................................... 27
Standard Heater Schematic ............................................................................................................. 28
Deluxe Heater .................................................................................................................................. 29
Chapter 9 Parts List .......................................................................................................................................... 30
Standard Heater Control Box Parts .................................................................................................. 30
Deluxe Heater Control Box Parts ..................................................................................................... 32
18" Gas Heater Parts ....................................................................................................................... 33
24", 26" and 28" Gas Heater Parts ................................................................................................... 34
18" Vapor/NG Pipe Train Assembly ................................................................................................. 36
24", 26" and 28" LP Pipe Train Assembly ........................................................................................ 37
24", 26" and 28" LP High-Low Pipe Train Assembly ........................................................................ 38
24", 26" and 28" LP Modulating Pipe Train Assembly ..................................................................... 39
24", 26" and 28" Vapor/NG Pipe Train Assembly ............................................................................ 40
24", 26" and 28" Vapor/NG High-Low Pipe Train Assembly ............................................................ 41
24", 26" and 28" Vapor/NG Modulating Pipe Train Assembly .......................................................... 42
LP Supply Pipe Train Assembly ....................................................................................................... 43
Chapter 10 Warranty ......................................................................................................................................... 45

4PNEG-012 Vane Axial Heater
1. Safety
Safety Guidelines
This manual contains information that is important for you, the owner/operator, to know and understand.
This information relates to protecting personal safety and preventing equipment problems. It is the
responsibility of the owner/operator to inform anyone operating or working in the area of this equipment
of these safety guidelines. To help you recognize this information, we use the symbols that are defined
below. Please read the manual and pay attention to these sections. Failure to read this manual and its
safety instructions is a misuse of the equipment and may lead to serious injury or death.
This is the safety alert symbol. It is used to alert you to
potential personal injury hazards. Obey all safety
messages that follow this symbol to avoid possible
injury or death.
DANGER indicates an imminently hazardous situation
which, if not avoided, will result in death or serious injury.
WARNING indicates a potentially hazardous situation
which, if not avoided, could result in death or serious injury.
CAUTION indicates a potentially hazardous situation
which, if not avoided, may result in minor or moderate injury.
CAUTION used without the safety alert symbol indicates a
potentially hazardous situation which, if not avoided, may
result in property damage.
NOTE indicates information about the equipment that you
should pay special attention.

1. Safety
PNEG-012 Vane Axial Heater 5
Introduction
Thank you for choosing a GSI product. It is designed to give excellent performance and service for
many years.
This manual describes the operation of the Deluxe and Standard Vane Axial Heater: VHD and VHS. It
is designed for low to medium temperature grain conditioning, and is ideal for the aeration of rice,
popcorn or other select grains. It is available in both propane vapor and natural gas models.
Our foremost concern is your safety and the safety of others associated with this equipment. We want
to keep you as a customer. This manual is to help you understand safe operating procedures and some
problems which may be encountered by the operator and other personnel.
As owner and/or operator, it is your responsibility to know what requirements, hazards and precautions
exist, and to inform all personnel associated with the equipment or in the area. Safety precautions may
be required from the personnel. Avoid any alterations to the equipment. Such alterations may produce
a very dangerous situation where SERIOUS INJURY or DEATH may occur.
This equipment shall be installed in accordance with the current installation codes and applicable
regulations which should be carefully followed in all cases. Authorities having jurisdiction should be
consulted before installations are made.

6PNEG-012 Vane Axial Heater
2. Safety Decals
If a decal is damaged or missing contact:
GSI Decals
1004 E. Illinois St.
Assumption, IL. 62510
Phone: [phone]
A free replacement will be sent to you.
Roof Damage Warning and Disclaimer
The manufacturer does not warrant any roof damage caused by excessive vacuum or internal
pressure from fans or other air moving systems. Adequate ventilation and/or “makeup air”
devices should be provided for all powered air handling systems. The manufacturer does not
recommend the use of downward flow systems (suction). Severe roof damage can result from
any blockage of air passages. Running fans during high humidity/cold weather conditions can
cause air exhaust or intake ports to freeze.
CAUTION!
Excessive vacuum (or pressure) may
damage roof. Use positive aeration
system. Make sure all roof vents are
open and unobstructed. Start roof
fans when supply fans are started.
Do not operate when conditions exist
that may cause roof vent icing.
DC-969

2. Safety Decals
PNEG-012 Vane Axial Heater 7
Heater Access Door Decals
Stay clear of rotating
blade. Blade could start
automatically. Can cause
serious injury. Disconnect
power before servicing.
DC-1225
WARNING
DC-1227
Flame and pressure beyond
door can cause serious
injury. Do not operate with
service door removed. Keep
head and hands clear.
WARNING
Size: 4.875" x 2.25"
Located above access door on
heater housing.
See Note below.
DC-1225
DC-1227
Size: 4.875" x 2.25"
Located above access door on
heater housing.
See Note below.
DC-113
Size: 4.75" x 1.625"
Located above access door on
heater housing.
NOTE: May be substituted with DC-1559 combination decals.

2. Safety Decals
8PNEG-012 Vane Axial Heater
Control Box Decals
WARMER COLDER
VAPORIZER ADJUSTMENT
VAPORIZER COIL SHOULD BE ADJUSTED
SO VAPOR PIPE TRAIN IS WARM
(100°F-125°F) TO THE TOUCH
DC-535
Size: 2.813" x 1.375"
Located in control box on side
opposite switches.
DC-889
Similar decal is incorporated into the
control panel decal.

PNEG-012 Vane Axial Heater 9
3. Specifications
Heater Specifications
Common Measurements
Fan Model 18" 24" 26" 28"
Inside Diameter (inches) 18-5/16" 24-1/4" 26-5/16" 28-1/8"
Bolt Circle Diameter (inches) 19-7/16" 25-3/4" 27-15/16" 29-5/8"
Length (inches) 22 22-1/2" 22-1/4" 25-1/4"
Weight (pounds) 83 129 133 136
Vapor Models
Fan Model 18" 24" 26" 28"
Minimum Operating Pressure (PSI) 2 2 2 2
Maximum Operating Pressure (PSI) 15 10 15 20
Minimum Supply Line (inches) 1/2" 3/4" 3/4" 3/4"
High Temperature Orifice (inches) 11/64" 7/32" 7/32" 7/32"
High Temperature BTU Rating at Maximum Pressure 1,400,000 2,100,000 2,700,000 3,000,000
High Temperature Fuel Flow at Maximum Pressure (CFH) 585 877 1128 1253
Low Temperature Orifice (inches) 3/32" 3/32" 3/32" 3/32"
Low Temperature BTU Rating at Maximum Pressure 400,000 350,000 400,000 500,000
Low Temperature Fuel Flow at Maximum Pressure (CFH) 167 146 167 208
Liquid Models
Fan Model 18" 24" 26" 28"
Minimum Operating Pressure (PSI) N/A 2 2 2
Maximum Operating Pressure (PSI) N/A 10 15 20
Minimum Supply Line (inches) N/A 3/8" 3/8" 3/8"
High Temperature Orifice (inches) N/A 7/32" 7/32" 7/32"
High Temperature BTU Rating at Maximum Pressure N/A 2,100,000 2,700,000 3,000,000
High Temperature Fuel Flow at Maximum Pressure (CFH) N/A 23 30 34
Low Temperature Orifice (inches) N/A 3/32" 3/32" 3/32"
Low Temperature BTU Rating at Maximum Pressure N/A 350,000 400,000 500,000
Low Temperature Fuel Flow at Maximum Pressure (CFH) N/A 4 4.5 5.5
Natural Gas
Fan Model 18" 24" 26" 28"
Minimum Operating Pressure (PSI) 1 1 1 1
Maximum Operating Pressure (PSI) 7 4 5 7
Minimum Supply Line (inches) 3/4" 1" 1-1/4" 1-1/4"
High Temperature Orifice (inches) 17/64" 3/8" 3/8" 3/8"
High Temperature BTU Rating at Maximum Pressure 1,400,000 2,100,000 2,700,000 3,000,000
High Temperature Fuel Flow at Maximum Pressure (CFH) 1400 2100 2700 3000
Low Temperature Orifice (inches) 11/64" 7/32" 7/32" 7/32"
Low Temperature BTU Rating at Maximum Pressure 400,000 350,000 400,000 500,000
Low Temperature Fuel Flow at Maximum Pressure (CFH) 400 350 400 500

10 PNEG-012 Vane Axial Heater
4. Installation
Fuel Connection
Liquid Propane Models
1. LP models are designed to run on liquid propane, with liquid draw from the propane tank. Avoid
using propane supply tanks that have been use for vapor draw for long periods oftime. When using
liquid draw systems any moisture that may be present in tank or lines may freeze when system is
used in cold weather. To avoid this, the usual precaution is to purge the system with methanol.
2. Run proper size line (See Specifications on Page 9) to pipe train on heater. Have a qualified gas
service person inspect installation to be sure everything is installed according to local codes
and ordinances.
3. After installation is complete check all connections for leaks. Use liquid detergent or comparable
substance. Wear rubber gloves and eye protection. Avoid contact with liquid propane. DO NOT
USE FLAME FOR LEAK TESTING.
Propane Vapor Models
1. Propane vapor models are designed to run directly off of supply tank or from a separate
external vaporizer.
2. Run proper size line (See Specifications on Page 9) to pipe train on heater. Have a qualified gas
service person inspect installation to be sure everything is installed according to local codes
and ordinances.
3. After installation is complete check all connections for leaks.
Natural Gas Models
1. Natural gas models are similar to vapor models, but have a larger orifice to accommodate lower
pressure, sometimes found with natural gas.
2. Run proper size line (See Specifications on Page 9) to pipe train on heater. Have a qualified gas
service person inspect installation to be sure everything is installed according to local codes
and ordinances.
3. After installation is complete check all connections for leaks.
Standard Heater Electrical Installation
Standard electrical safety practices and codes should be used when working with a heater. Refer to the
National Electric Code Standard Handbook by the National Fire Protection Association. A qualified
electrician should make all wiring installations.
Do not use propane tanks which have previously been used for ammonia unless
they have been purged according to procedures of the national LP association.
Investigate to be sure that the fuel supply system complies with all local codes for
LP gas installations.
Always disconnect and lock out power before working on or around heater.