GSI PNEG-1458 User Manual

PNEG-1458

T-Series Tower Dryer

Operation Manual

PNEG-1458

Version: 1.0
Date: 11-07-11

All information, illustrations, photos and specifications in this manual are based on the latest
information available at the time of publication. The right is reserved to make changes at any
time without notice.

2 PNEG-1458 T-Series Tower Dryer

Table of Contents

Contents

Chapter 1 Safety .....................................................................................................................................................5

Safety Guidelines .................................................................................................................................. 5

Dryer Operation ..................................................................................................................................... 6

Emergency Stop Switch ...................... ... ... ... .... ... ... ... .... ... ..................................................................... 6

Operating Precautions ..................................... ... ... ... .... ... ... ... .... ... ........................................................ 7

Chapter 2 Safety Decals ........................................................................................................................................9

Chapter 3 Specifications .....................................................................................................................................11

Dimensions ......................................................................................................................................... 12

Chapter 4 Dryer Installation ................................................................................................................................15

Dryer Layout ........................................................................................................................................ 15

Liquid Propane (LP) Dryers with Internal Vaporizers .......................................................................... 15

Natural Gas (NG) Dryers ........................... ................ ................. ............ ................. ............................ 15

Central United States Foundation for Dryer Sizes up to 20100 .......................................................... 16

Northern United States Foundation for Dryer Sizes up to 20100 ........................................................ 17

Foundation for 24100 Dryer ................................................................................................................ 18

Fuel Supply ......................................................................................................................................... 19

Electrical Power Supply ...................................................................................................................... 20

Transformers and Wiring Voltage Drop ............................................................................................... 20

Power Supply Disconnect ................................................................................................................... 20

Machine to Earth Grounding ............................................................................................................... 20

Proper Installation of Ground Rod ....................................................................................................... 21

Connecting Auxiliary Conveyors ......................................................................................................... 21

Chapter 5 Operating Controls .............................................................................................................................22

Vision Control Panel Layout ................................................................................................................ 22

Control Power Switch .......................................................................................................................... 22

Fan Switch .......................................................................................................................................... 22

Heater Switch ...................................................................................................................................... 23

Load Auger Switch ....................... .... ... ... ... ... .... ................................................................ ................... 23

Unload Switch ..................................................................................................................................... 23

Outside Light Switch ........................................................................................................................... 23

Start Switch ......................................................................................................................................... 23

Stop Switch ......................................................................................................................................... 23

Chapter 6 Vision Touch Screen Display ........... ... ... ... .... ....................................................................................24

Boot Screen ........................................................................................................................................ 24

Default Operation Screen .................................................................................................................... 24

Setting the Timers ............................................................................................................................... 25

Setting the Temperatures .................................................................................................................... 26

The Setup Screen ............................................................................................................................... 28

Chapter 7 Test Firing ...........................................................................................................................................34

Dryer Pre-Season Checks .................................................................................................................. 34

Inspect the Accutrol Metering System .................... ................ ................ ................. ................ ............ 34

Electrical Power .................................................................................................................................. 34

Control Power Switch .......................................................................................................................... 34

Start Switch ......................................................................................................................................... 34

Fuel Check .......................................................................................................................................... 34

Load Auger .......................... ... ................................................................ .... ... ... ... ................................ 35

Unload Auto Operation ........................................................................................................................ 35

Unload Manual Operation ................................................................................................................... 35

Accutrol Sweep Metering System Operation ...................................................................................... 35

Fan Switch .......................................................................................................................................... 35

Burner Safety ...................................................................................................................................... 35

Burner Test Fire .................................................................................................................................. 35

Dryer Shut Down ................................................................................................................................. 36

Emergency .......................................................................................................................................... 36

PNEG-1458 T-Series Tower Dryer 3

Table of Contents

Chapter 8 Dryer Operation ..................................................................................................................................37

Dryer Start-Up and Operation ............................................................................................................. 37

Dryer Shut Down ................................................................................................................................. 37

Initial Setup Parameters ...................................................................................................................... 37

Timer and Delay Settings .................................................................................................................... 37

Setting the Temperatures .............. .... ... ... .................................................................... ... ... .................. 39

Start-Up ................................... ....................................................... ..................................................... 40

Continuous Flow Drying Mode Using Advanced Moisture Control ..................................................... 41

Chapter 9 Drying Time Tables ............................................................................................................................43

Chapter 10 Service ...............................................................................................................................................49

Pre-Seasonal Inspection and Service ............................................................................................... 49

Seasonal Inspection and Service ...................................................................................................... 49

Pre-Season Service Check List ......................................................................................................... 51

End of Season Shut Down Procedure ............................................................................................... 51

Chapter 11 Safety Circuit Shut Down Messages ..............................................................................................53

Fan/Heater Generated Errors ............................................................................................................ 53

Input/Output Generated Errors .......................................................................................................... 55

Master Display Generated Errors ...................................................................................................... 56

Chapter 12 Wiring Diagrams ...............................................................................................................................58

T and F Upper Control Box with Honeywell 220V ..................................................................... ... ... .. 58

T and F Upper Control Box with Honeywell 440V ..................................................................... ... ... .. 61

Field Wiring Bottom Terminal Strip Power Box .................................................................................. 64

Field Wiring Top Terminal Strip Power Box ....................................................................................... 65

Field Wiring Top Terminal Strip Power Box w/ Mod Valve ................................................................ 66

Remote Moisture Box ........................................................................................................................ 67

Fan/Heater Board Wiring ................................................................................................................... 68

Main Input/Output Power Box Wiring ................................................................................................ 69

Burner Control Wiring ............... ... .... ... ... ... ... .... ... ............................................................................... 70

DC Motor Wiring ................................................................................................................................ 71

Fan Contactor and Overload (ACL) ................................................................................................... 72

Fan Contactor Part Winding Starter .................................................................................................. 73

Fan Contactor Soft Starter ............... ................................................................... .... ... ... ... ... ............... 74

Control Box 12 VDC Lamp Wiring ..................................................................................................... 75

Control Box 12 VDC Negative Lamp Wiring ...................................................................................... 76

Control Box 12 VDC Switch Wiring ................................................................................................... 77

Control Box 120V Wiring ................................................................................................................... 78

Control Box Switch Wiring ........ ... .... ... ... .................................................................... ... ... .................. 79

Chapter 13 Warranty ............................................................................................................................................81

4 PNEG-1458 T-Series Tower Dryer

1. Safety

DANGER

WARNING

CAUTION

NOTICE

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.

WARNING indicates a hazardous situation which, if not

avoided, could result in death or serious injury.

CAUTION, used with the safety alert symbol, indicates a
hazardous situation which, if not avoided, could result in
minor or moderate injury.

NOTICE is used to address practices not related to
personal injury.

DANGER indicates a hazardous situation which, if not
avoided, will result in death or serious injury.

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.

PNEG-1458 T-Series Tower Dryer 5

1. Safety

Emergency stop

WARNING

Pushing the Emergency Stop switch does not interrupt the main power to the
upper control box panel.

Dryer Operation

Thank you for choosing a GSI product. It is designed to give excellent performance and service for
many years.

This manual describes the operation for all standard production model dryers. These dryers are available
with liquid propane or natural gas fuel supply and 3 phase 230, 380, 460 or 575 volts (50 Hz or 60 Hz)
electrical power.

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 that 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 p roduce 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.

Emergency Stop Switch

The Emergency Stop switch is located on the upper control box door. Pushing the Emergency Stop switch
will interrupt the control power and stop all dryer functions.

6 PNEG-1458 T-Series Tower Dryer

1. Safety

Keep the dryer clean. Do not allow fine material to accumulate in the plenum
chamber or surrounding the outside of the dryer.

Operating Precautions

READ THESE INSTRUCTIONS BEFORE INSTALLATION AND OPERATION

SAVE FOR FUTURE REFERENCE

1. Read and understand the operations manual before attempting to operate the unit.

2. Keep ALL guards, safety decals and safety devices in place. NEVER operate dryer while guards
are removed.

3. Keep visitors, children and untrained personnel away from dryer at all times.

4. Never attempt to operate the dryer by jumping or otherwise bypassing any safety devices on
the unit.

5. Always set the main power supply disconnect switch to OFF and lock it in the OFF position using
a padlock before performing any service or maintenance work on the dryer or the auxiliary
conveyor equipment.

6. Before attempting to remove and reinstall the fan blade on the models 1050 and 1260, make certain
to contact GSI for the recommended procedure.

7. Keep the dryer and wet holding equipment CLEAN. DO NOT allow fine material to accumulate.

8. On LP fired units, set pressure regulator to avoid excessive gas pressure applied to a burner during
ignition and when the burner is in operation. See Page 20 for operating gas pressures. Do not exceed
maximum recommended drying temperatures.

9.

DO NOT

10. Clean grain is safer and easier to dry. Fine materials can be highly combustible and it also requires
removal of extra moisture.

11. Use CAUTION in working around high-speed fans, gas burner, augers and auxiliary conveyors which
can START AUTOMATICALLY.

12. Be certain that capacities of auxiliary conveyors are matched to dryer metering capacities.

13. DO NOT operate in an area where combustible material will be drawn into the dryer.

14. The operating and safety recommendations in this manual pertain to the common cereal grains as
indicated. When drying any other grain or products, consult the factory for additional
recommendations.

15. Routinely check for any developing gas plumbing leaks.

operate the dryer if any gas leak is detected. Shut down and repair before further operation.

Use Caution in the Operation of this Equipment

This dryer is designed and manufactured with operator safety in mind. However, the very nature of a grain
dryer having a gas burner, high voltage electrical equipment and high speed rotating parts, presents
hazards to personnel which cannot be completely safeguarded against without interfering with the efficient
operation of the dryer and reasonable access to its components.

Use extreme caution in working around high speed fans, gas-fired heaters, augers and auxiliary
conveyors, which may start without warning when the dryer is operating on automatic control.

CAUTION

Continued safe, dependable operation of automatic equipment depends, to a great degree, upon the
owner. For a safe and dependable drying system, follow the recommendations within the Owner’s Manual
and make it a practice to regularly inspect the unit for any developing problems or unsafe conditions.

Take special note of the Operating Precautions before attempting to operate the dryer.

PNEG-1458 T-Series Tower Dryer 7

1. Safety

Prepare for Emergencies

Be prepared if fire starts.
Keep a first aid kit and fire extinguisher handy.
Keep emergency numbers for doctors, ambulance service,

hospital, and fire department near your telephone.

Keep Emergency Equipment
Quickly Accessible

Wear Protective Clothing

Wear close-fitting clothing and safety equipment appropriate
to the job.

Remove all jewelry.

Tie long hair up and back.

Wear safety glasses at all times to protect eyes from debris.

Wear gloves to protect your hands from sharp edges on plastic
or steel parts.

Wear steel-toed boots to help protect your feet from falling
debris. Tuck in any loose or dangling shoestrings.

A respirator may be needed to prevent breathing potentially
toxic fumes and dust.

Wear a hard hat to help protect your head.

Wear appropriate fall protection equipment when working at
elevations greater than six feet (6').

Eye Protection

Gloves

Steel-Toed Boots

Respirator

Hard Hat

Fall Protection

8 PNEG-1458 T-Series Tower Dryer

2. Safety Decals

HIGH VOLTAGE.

Will cause serious
injury or death.

Lockout power
before servicing.

DC-1224

Decal: DC-889

Decal DC-889 has two locations. One inside the
fan/heater control box and another on the dryer upper
control box door next to the main power disconnect.

Decal: DC-1224

Decal DC-1224 is located in two places on the fan/heater control box. One
on the lid and one on the front of the fan heater control box. Another location
for this decal is inside the upper control box for the dryer.

Contact the local power company to have a representative survey the installation to assure the wiring is
compatible with their system and adequate power is supplied to the unit. Safety deca ls should be read and
understood by all people in the grain handling area. Inspect all decals and replace any that are

illegible, worn or missing. Contact your dealer or the factory to order replacement decals.

If a decal is damaged or is missing, contact:

GSI Decals

1004 E. Illinois St.
Assumption, IL. 62510
Phone: [phone]

A free replacement will be sent to you.

NOTE: Decals are not shown actual size.

PNEG-1458 T-Series Tower Dryer 9

2. Safety Decals

Flame and pressure
beyond door. May
cause serious injury.
Do not enter when
dryer is running.

DC-1061

WARNING!

Decal: DC-1062

Decal DC-1062 is located inside the cooling section of the
dryer on the two access doors to the metering section.

Decal: DC-1063

Decal DC-1063 is located on the louvered
access door to the cooling section of the dryer.

Decal: DC-1064

Decal DC-1064 is located on the louvered access
door to the cooling section of the dryer.

Decal: DC-1061

Decal DC-1061 is located on the outside
of the heat section door.

DO NOT STAND ON DRUM!

Rotating drum will cause
serious injury or death.

Disconnect power before
servicing.

DC-1062

Airborne particles during
operation. May impair
vision and breathing.
Do not enter when
dryer is running.

DC-1063

WARNING!

High speed belt drive
operating overhead.
Can cause serious injury.
Keep head and hands
clear. Do not enter when
dryer is running.

DC-1064

10 PNEG-1458 T-Series Tower Dryer

3. Specifications

Models 1050 1260 1575 1875 20100 24100

Blower Size 43" Axial 43" Axial 8490 8542 8542 8600
Blower RPM 1750 1750 1035 856 981 818
Blower HP 50 60 75 75 100 100
Metering HP 1 1 1 1 1 1
Drying CFM 42300 48400 77100 81800 98600 108300
Cooling CFM 14500 17500 38550 40900 49300 54150
Burner Capacity (mBtu) 11100 11100 16654 17669 21298 23393
Average Heat Use (mBtu) 5711 6543 9576 10159 12246 13451
Grain Column 12-3/4" 12-3/4" 12-3/4" 12-3/4" 12-3/4" 12-3/4"
Tower Diameter 12'-0" 12'-0" 12'-0" 12'-0" 12'-0" 12'-0"
Overall Height 45'-8" 52'-4" 59'-0" 69'-0" 75'-8" 85'-8"
Wet Holding (BU) 302 302 302 302 302 302
Heat Holding (BU) 610 756 914 1158 1256 1499
Cool Holding (BU) 219 268 305 354 451 500
Dryer Holding (BU) 1232 1427 1622 1915 2110 2401
Outside Catwalks 0 0 1 2 2 3
BPH (20%-5%) 1000 1200 1500 1800 2000 2400
BPH (25%-15%) 600 720 900 1080 1200 1440

PNEG-1458 T-Series Tower Dryer 11

3. Specifications

Dimensions

Figure 3A 1050 Figure 3B 1260

12 PNEG-1458 T-Series Tower Dryer

Dimensions (Continued)

3. Specifications

Figure 3C 1575 Figure 3D 1875

PNEG-1458 T-Series Tower Dryer 13

3. Specifications

Dimensions (Continued)

Figure 3E 20100 Figure 3F 24100

14 PNEG-1458 T-Series Tower Dryer

4. Dryer Installation

Dryer Layout

System Layout

Consider the grain handling system and location of storage bins and existing conveyors when selecting
dryer site, to facilitate wet grain supply and dry grain discharge to conveyors. Other considerations are
prevailing wind direction, fuel and power supply locations, noise and convenience of control location.

Site Location

The dryer should not be operated inside a building or in any area not permitted by electrical code,
fuel installation regulations or insurance requirements. Do not operate in an area where combustible
material can be drawn into the dryer. Maintain a minimum distance of five feet (5') to other structures.
Refer to dryer specifications on Page 11 and dimensions on Pages 12, 13 and 14.

Foundation

The dryer should be placed on a reinforced concrete slab located in a well drained area. See Figure 4A

on Page 16, Figure 4B on Page 17 and Figure 4C on Page 18 for re commended dryer foundations for soils

with minimum soil bearing pressure of 3000 lbs/ft².

Liquid Propane (LP) Dryers with Internal Vaporizers

Liquid Draw

The dryer is designed to operate on liquid propane, with liquid draw from the supply tank. A piping
system is provided on the dryer, including strainer, pressure relief valve and manual shut off valve.

(See Figure 4D on Page 19.)

Ammonia Tanks

Do not use propane supply tanks which have previously contained ammonia or fertilizer solutions.
These substances are extremely corrosive and damaging to fuel supply and burner parts.

Oil or Water in Tanks

With liquid draw from the supply tank, any water present in the tank may freeze in the piping and con trols
in cold weather. To ensure that tanks are free of moisture, the usual precautio n is to purge with methanol.
Avoid tanks which may contain an accumulation of oil or heavy hydrocarbons from long use on a vapor
withdrawal system.

Natural Gas (NG) Dryers

Gas Volume and Pressure

The dryer is designed to operate on natural gas having a heat value of about 1000 BTU per cubic foot.
The dryer is equipped with a natural gas supply pipe system connected to the heater solenoid valves.
A regulated pressure of 10 PSI must be provided at the connection to the dryer, with gas available in
sufficient volume to maintain operating pressure. (See Figure 4E on Page 19.)

PNEG-1458 T-Series Tower Dryer 15

4. Dryer Installation

NOTES:

1. Foundation design based on net soil bearing

pressure of 3000 PSF.

2. Site shall be free of any debris or vegetation

and well drained.

3. All reinforcing steel to be A-615 grade 40

deformed bars.

Concrete specifications

Compressive strength @ 28 days - - 4000 PSI

Minimum cement content - - 6 sacks/yard

Maximum slump - - 4" ± 1"

Central United States Foundation for Dryer Sizes up to 20100

Figure 4A

16 PNEG-1458 T-Series Tower Dryer

4. Dryer Installation

NOTES:

1. Foundation design based on net soil bearing

pressure of 3000 PSF.

2. Site shall be free of any debris or vegetation

and well drained.

3. All reinforcing steel to be A-615 grade 40

deformed bars.

Concrete specifications

Compressive strength @ 28 days - - 4000 PSI

Minimum cement content - - 6 sacks/yard

Maximum slump - - 4" ± 1"

Northern United States Foundation for Dryer Sizes up to 20100

Figure 4B

PNEG-1458 T-Series Tower Dryer 17

4. Dryer Installation

NOTES:

1. Foundation design based on net soil bearing

pressure of 3000 PSF.

2. Site shall be free of any debris or vegetation

and well drained.

3. All reinforcing steel to be A-615 grade 40

deformed bars.

Concrete specifications

Compressive strength @ 28 days - - 4000 PSI

Minimum cement content - - 6 sacks/yard

Maximum slump - - 4" ± 1"

Foundation for 24100 Dryer

Figure 4C

18 PNEG-1458 T-Series Tower Dryer

Fuel Supply

See Table on Page 20

for recommended
line size.

Connection to natural gas manifold on dryer

See Table on Page 20 for

recommended line size.

Natural gas meter and regulator. See Table

on Page 20 for required pressure and

typical maximum fuel flow rates.

4. Dryer Installation

Figure 4D Liquid Propane (LP) Fuel Supply

PNEG-1458 T-Series Tower Dryer 19

Figure 4E Natural Gas (N) Fuel Supply

4. Dryer Installation

Burner Capacity (Btu/Hr)¹ 11100000 11100000 16654000 17669000 21298000 23393000
Maximum Fuel Usage (Gal/Hr) 121 121 182 193 233 255

Fuel System Recommendations

1050 1260 1575 1875 20100 24100

Liquid

Propane

Natural

Gas

¹Burner capacity for fuel line sizing. Actual average fuel usage is typically 50%-60% of the burner capacity.

Recommended Liquid
Line Size (>100')

Fuel Train Orifice Size (inch) 0.625" 0.625" 0.7187" 0.787" 0.781" 0.781"
Pressure Regulator Setting (PSI) 9 9 9 9 9 9
Burner Capacity (Btu/Hr) 11100000 11100000 16654000 17669000 21298000 23393000
Maximum Fuel Usage (Cu Ft/Hr) 11100 11100 16654 17669 21298 23393
Recommended Liquid

Line Size (>100')
Fuel Train Office Size (inch) 0.7187" 0.7187" 0.8125" 0.875" 1.000" 1.000"
Regulated Supply Pressure (PSI) 10 10 10 10 10 10

3/4" 3/4" 3/4" 1" 1" 1"

2" 2" 2-1/2" 2-1/2" 2-1/2" 2-1/2"

Electrical Power Supply

An adequate power supply and proper wiring are important factors for maximum performance and long
life of the dryer. Electrical service must be adequate enough to prevent low voltage damage to motors and
control circuits.

Transformers and Wiring Voltage Drop

Advise the service representative of the local power supplier that an additional load will be placed on the
line. Check on KVA rating of transformers, considering total horsepower load. The power supply wiring,
main switch equipment and transformers must provide adequate motor starting and operating voltage.
Voltage drop during motor starting should not exceed 14% of normal voltage and a fter motor is running at
full speed it should be within 8% of normal voltage.

Power Supply Disconnect

All dryers are equipped with a power disconnect switch in the power box to permit total power shut down
before opening the power box door, as required for inspection and service. The power disconnect switch
is located on the power box door for quick shut down.

Machine to Earth Grounding

It is very important that a machine to earth ground rod be installed at the dryer. Place the ground rod that
comes standard, within eight feet (8') of the dryer and attach it to the dryer control panel with a t least a #6
solid, bare, copper ground wire and the clamp provided. The grounding rod located at the power pole will
not provide adequate grounding for the dryer. The proper grounding will provide additional safety
in case of any short and will ensure long life of all circuit boards, SCR drive and the ignition system.
The ground rod must be in accordance with local requirements.

20 PNEG-1458 T-Series Tower Dryer

4. Dryer Installation

Proper Installation of Ground Rod

It is not recommended that the rod be driven into dry ground. Follow these instructions for
proper installation.

1. Dig a hole large enough to hold one to two (2) gallons of water.

2. Fill hole with water.

3. Insert rod through water and jab it into the ground.

4. Continue jabbing the rod up and down. The water will work its way down the hole, making it possible
to work the rod completely into the ground. This method of installation assures good contact with the
surrounding soil, making a proper ground.

5. Connect the bare, copper ground wire to the rod with proper clamp.

6. Connect ground wire to control panel with the ground lug provided in the control box.

7. Ground wire must not have any breaks or splices. Insulated wire is not recommended for
grounding applications.

Connecting Auxiliary Conveyors

The auxiliary load and auxiliary unload augers or conveyors can be wired directly to the dryer. The
maximum horsepower of auxiliaries that can be wired to the dryer is 10 horsep ower. If an auxiliary motor
is larger than what is recommended, then it must be powered from a source outside the dryer and must
use a separate contractor and overload protection device for each motor. However, the operation of the
auxiliaries can be performed by the control panel.

It is recommended that you contact the local power company and have a representative survey the
installation to see that the wiring is compatible with their system and that adequate power is supplied
to the unit. Remember that the only thing connected to the recommended service amps should be the
grain dryer. Standard electrical safety practices and codes should be used. (Refer to National Electrical
Code Standard Handbook by National Fire Protection Association.) A qualified electrician should make all
electrical wiring installations.

PNEG-1458 T-Series Tower Dryer 21

5. Operating Controls

Heater switch

Fan switch

Load auger switch

Unload auger switch

Operator light switch

Control power switch

Stop switch

Start switch

Meter roll speed

Touch screen

Vision Control Panel Layout

Figure 5A

The vision control system is a state of the art dryer controller used on several GSI drying products. The
vision control can operate any dryer in either a batch or a continuous flow mode. Therefore, all operating
instructions for the T-Series dryer describes continuous flow operation only.

Control Power Switch

The vision control system is turned ON or OFF with this switch.

NOTE: This switch does NOT disconnect the power that is present at the breakers, contractors,

transformers, fuses or other electrical components found in the control or power box. Turn the main
disconnect handle located on the power box to the OFF position prior to servicing any of the
installed components.

Fan Switch

The fan is turned ON or OFF with this switch. Turning the switch to the ON position will turn the fan ON.
Turning the switch to the OFF position turns the fan OFF. The light inside the switch will illuminate
whenever the air pressure sensor senses air movement through the fan. (NOTE: The fan AUT O position
is not used.)

22 PNEG-1458 T-Series Tower Dryer

5. Operating Controls

Heater Switch

The burner is turned ON or OFF with this switch. Turning the switch to the ON position will start the
burner ignition sequence if the fan is also running. Turning the switch to the OFF position turns the
burner OFF. The light inside of the switch will illuminate only when the flame sensor detects the burner
flame. (NOTE: The heater AUTO position is not used.)

Load Auger Switch

This switch is used to select the operation of the wet fill conveyor. In both the AUTO and the MANUAL
positions, the wet fill conveyor will operate if the dryer is low on grain and will automatically shut off
when the dryer is full. In the AUTO position only, the dryer will automatically shut down should the dryer
go low on grain. The time period between the dryer going low on grain and the actual shut down is
determined by the setting on the out of grain timer. In the MANUAL position, the out of grain timer is
deactivated. The MANUAL switch position should be used for initially filling the dryer. The AUTO switch
position should be used during normal dryer operation. The switch will illuminate whenever the load auger
is operating.

Unload Switch

The Unload switch turns the accutrol metering system and the unload conveyor ON or OFF and also
selects the operation of the metering system. In the MANUAL position, the metering system operates
at the speed set by the Metering Roll Speed Rotary switch. In the AUTO position, the metering system
switches to a multi-speed operation controlled by the automatic moisture control. The switch will illuminate
whenever the unload auger is operating.

Outside Light Switch

The service light is turned ON or OFF with this switch. In the AUTO position, the light is turned ON
while the dryer is running automatically and turns OFF if a shut down occurs. In the ON position, the light
is turned ON.

Start Switch

This switch starts and operates the dryer. If all of the above Dryer Operational switches are in the OFF
position, each component can be turned ON by turning the component switch to the ON position after the
run switch has been pressed. Or, if the Operational switches are preset to their ON position, the vision
controls will sequentially start the various dryer components after the run switch is pressed.

Stop Switch

This switch stops all dryer functions except the blower. If the Blower switch is in the ON position, the blower
will continue to run for 15 minutes. If you desire the blower to be OFF, simply turn the Blower switch to the
OFF position. If an automatic dryer shut down occurs, first determine and correct the cause of the shut
down. Then press the Dryer Power Stop button to reset the dryer before restarting.

PNEG-1458 T-Series Tower Dryer 23

6. Vision Touch Screen Display

These two (2) buttons are
used to update software.

Boot Screen

With the Power switch in the ON position, pushing the Start switch will start the Vision computer. The first
screen to appear will be the Boot screen. (See Figure 6A.) Notice that there are four (4) “buttons” on the
Boot screen. Install Dryer Software and Get Program From USB Flash buttons are only used for program
updates that may be released at a later date. Touching the Start Dryer button will display the Default
Operation screen. Touching the Exit To Windows button will close down the dryer program and take you
to the Windows CE Operating System.

Figure 6A

Default Operation Screen

As you can see the Operation screen is divided into five (5) sections.

1. Dryer operation animation: Located on the left side of the Operation screen the operation animation
shows the status of the fan/heaters, load and unload augers and meter rolls. It will also display the
grain temperature, moisture content, M/C set point and bushel counter.

2. Dryer status: Located at the very top of the right side of the Operation screen the dryer status
will tell you if the dryer is stopped, started, loading or unloading.

3. Dryer status chart: Located directly below dryer status. This chart will show the grain temperature,
moisture in/out, temperature out and M.R.O. over a period of time.

4. Plenum: Located directly below dryer status chart. This will show the plenum temperature
set point (SP), actual plenum temperature and burner status.

5. Setup buttons: Located across the bottom of the Operation screen. By touching these buttons
the timers, temperature set points, dryer model and moisture control can be set up.

24 PNEG-1458 T-Series Tower Dryer

6. Vision Touch Screen Display

Figure 6B

Setting the Timers

Setting the timers for the dryer is a simple procedure. To set the timers, touch the button at the
bottom of Operation screen. A new screen will appear called the Select Timers to Modify screen.

(See Figure 6C on Page 26.) As you can see there are five (5) timers that you can modify:

1. Load delay: This delay is used to delay the starting of the load conveyor when the dryer is unloading
to prevent the load conveyor from cycling to often.

2. Out of grain (OOG) timer: The OOG timer should be set to the maximum time it takes for the dryer
to refill. Note that the computer will display the time required to fill the dryer on the previous load
operation to aid you in setting an accurate time. If the dryer runs out of grain while the Load Auger
switch is in the AUTO position, the OOG timer automatically shuts off the dryer after the period of
time preset on the timer.

3. Fan delay timer: The fan sequence delay timer.

4. Cool down timer: The cool down timer is used to set the amount of time the fan is to run, after a
non-heat related shut down. Setting to 0 will cause an immediate shut down on a warning. The range
is from 0 to 20 minute.

5. Unload delay timer: The unload delay timer is used to control the amount o f time the unloa d auger
runs after the metering system stops to allow the unload auger to clean itself out.

PNEG-1458 T-Series Tower Dryer 25

6. Vision Touch Screen Display

Operation screen for setting timers

Modifying timer set point

Figure 6C

To setup a timer touch the button of the timer you wish to modify. The Modify Timer Set Point screen
will then be displayed. (See Figure 6C.) Note that there are two (2) number pads on this Modify screen.
The left number pad is used to modify the minutes and the right number pad will modify the seconds.
Touching the Default button will automatically set the timer to the default set point for that timer. The
Accept button will save the timer set point displayed in the time display. Touching Cancel will exit the
Modify Timer Set Point screen without saving any changes and the timer will stay at the currently
saved set point.

Once you have the timer set points set touching the Exit button at the bottom of the Modify Timer
Set Point screen will return you to the Operation screen.

Setting the Temperatures

Setting the plenum temperature set point for the dryer is a simple procedure. To adjust the plenum
temperature touch the button at the bottom of Operation screen. A new screen will appear called
the Select Temperature Set Point to Modify screen. (See Figure 6D on Page 27.)

26 PNEG-1458 T-Series Tower Dryer

6. Vision Touch Screen Display

Figure 6D

The plenum temperature set point range is 80°F-250°F and the current temperature set point for each
plenum is displayed next to the corresponding Plenum button.

The grain temperature set point range is 80°F-150°F and the current temperature set point for the grain
temperature is displayed next to the Grain Temperature button.

Modifying a temperature set point is much like setting a timer described on Page 25. Touch the desired
button of the set point you wish to change. The Modify Temperature Set Point screen will appear. Enter
the desired temperature using the displayed number pad then touch the Accept button. Tou ching the Exit
button at the bottom of the Select Temperature Set Point to Modify screen will return you to the
Operators screen.

PNEG-1458 T-Series Tower Dryer 27

6. Vision Touch Screen Display

The Setup Screen

The Setup screen will allow you to setup other parameters of the dryer. To use the Setup screen touch the

button. The Select Hardware Setup Parameter to Modify screen will now be displayed. As you can

see there several different parameters that can be modified on this screen:

Figure 6E

1. Drying mode: Touching the Drying Mode button will display the Select Drying Mode window.
Continuous flow will be the only option for Tower Dryers.

2. M/C Setup: The M/C Setup operations are described in greater detail in the dryer opera tion section

on Page 37 of this manual.

3. Unload parameters: Touching the Unload Parameters button will present a screen where you will
edit you maximum and minimum unload rates.

Figure 6F

28 PNEG-1458 T-Series Tower Dryer

6. Vision Touch Screen Display

4. Plenum temperature manager: Touching the plenum temperature manager will display a
Configuration screen that will allow you to turn this feature ON or OFF. Also, a Configuration section
is presented so that the user can edit the behavior of this option.

Figure 6G

5. Burner mode: Touching the Burner Mode button will display the Select Burner Mode screen.

(See Figure 6H.) Tower dryer burner mode should always be set to ALL HIGH\LOW.

Figure 6H

PNEG-1458 T-Series Tower Dryer 29

6. Vision Touch Screen Display

6. Calibrate moisture sensor: Touching this butto n will display the Configuration screen to adjust the
offset for wet and dry moisture and temperature.

7.

Extended setup:

Figure 6I

Touching this button will display a setup menu with extended features and options.

Figure 6J

30 PNEG-1458 T-Series Tower Dryer

6. Vision Touch Screen Display

1. Diagnostics: The Diagnostics operations are described in greater detail in the service section

on Page 49 of this manual.

2. Differential: Touching the Differential button will display the Modify Burner Differential
Settings screen. (See Figure 6K.) Adjusting the burner differential settings allows the
operator to keep the plenum temperature within a certain range. For example: If you have the
temperature set point at 180° and you select ± 3° as the burner differential, then the burner will
switch to low heat at 183° and back to high heat at 177°. To modify a burner differential setting
first touch the Plenum button you wish to modify, then select one of the five (5) differential
setting button on the right side of the Modify Burner Differential Settings screen. Touch the
Accept/Exit button to save settings and return to the Select Hardware Setup Parameter to
Modify screen. NOTE: Tower dryer only have plenum #1.

Figure 6K

3. Printer setup: This section only applies if the dryer is equipped with a printer.

Figure 6L

PNEG-1458 T-Series Tower Dryer 31

6. Vision Touch Screen Display

4. BPH Calibration: Touching the BHP Calibration button will display the Unload Bushels Setup
screen. (See Figure 6M.) As you can see the bushel counter can be cleared by touching the
Clear button. However if the bushel counter is out of calibration it can be calibrated by touching
the Increase and Decrease buttons.

Example: If you ran 1000 bushels through the dryer but the bushel counter on the dryer reads
900 bushels then touch the Decrease button until the calibration reads 90% or if you ran a
1000 bushels and the counter reads 1100 bushels then touch the Increase button until the
calibration reads 110%.

When you are finished with the calibration or clearing the bushel counter touch the Accept
button to return to the Hardware Setup Parameter screen.

Figure 6M

5. Set Time/Date: Touching the Set Time/Date button will display the Set Time/Date window.
Use the up and down buttons to change each of the parameters for date and time. Touch
Accept/Exit to save settings and return to the Select Hardware Parameter to Modify screen.

Figure 6N

32 PNEG-1458 T-Series Tower Dryer

6. Vision Touch Screen Display

6. Temperature scale: Touch the Temperat ure Scale button to choose either English units or SI
units temperature scales. Depending what temperature scale you now operating in touching
this button will display a pop-up window asking if you want to switch to SI (celsius, metric tons,
etc.,) or English units (fahrenheit, bushels, etc.).

7. Dryer model: Touching the Dryer Model button will display the Dryer Hardware Setup window.
In order for the dryer operate properly the following items must be entered correctly: model
number and fuel type. Touch the select button until a check mark appears next to the
parameter corresponding to the dryer model.

Figure 6O

8. Data logger setup: Touching this button will display a dialogue box which will allow you
to turn this option ON. Also, you will have the option to delete the log file or copy it to a
USB thumb drive.

9. User saved defaults: Pressing this button will prompt you to save the current dryer settings
as the default settings for the system.

PNEG-1458 T-Series Tower Dryer 33

7. Test Firing

WARNING

Before attempting to operate the dryer make sure all safety shields are in place,
all access doors are closed and all personnel are clear of the dryer.

Any gas leaks must be fixed immediately.

Dryer Pre-Season Checks

This section gives a series of checks to be carried out on the dryer before starting for the first time in the
drying season. If any of the checks fail to produce the stated result, you should consult your dealer.

You should not attempt to use the dryer unless all the pre-start checks have been successfully completed.

Inspect the Accutrol Metering System

Open the two (2) access doors and inspect the accutrol sweep metering system to ensure that the system
is free of foreign material.

Electrical Power

Turn ON the electrical power supply to the dryer, set all circuit breakers to ON, including the safety
disconnect handle mounted on front of the dryer power panel.

Control Power Switch

Turn the Control Power switch to ON. At this point the controller will lock out all other dryer functions.
Once the Boot screen appears (See Page 24), touch the Start Dryer button and the dryer will perform
a safety circuit check. If a fault is found, the cause will be displayed on the Main screen. If all are found
safe, the Start switch will illuminate, indicating that the dryer is ready to be started.

Start Switch

Push the Dryer Start switch and all the selector switches on the control panel will be activated.

Fuel Check

If using LP gas, make sure the tank has plenty of fuel and that the tank does not have a regulator mounted
on the liquid line. Slowly open the main fuel supply valve at th e tank. Then, open the manual shut off valve
on the dryer to allow fuel flow to the dryer.

If using natural gas, make sure an adequate supply at 10 PSI of pressure is available. Turn ON the valve
along the supply line. Inspect all gas lines and connections for possible leaks.

WARNING

34 PNEG-1458 T-Series Tower Dryer

7. Test Firing

Load Auger

With the grain supply shut off, quickly bump the Load Auger switch to manual and check all filling
equipment for proper rotation.

Turn the Load Auger switch to the AUTO position. The filling equipment should run for eight (8) minutes
and then the dryer will shut down leaving the safety shut down message (out of grain warning) disp layed.
Press the Dryer Power Stop button to reset the panel, then press the Start button.

Unload Auto Operation

To check auto operation place the Unload switch in the AUTO setting. Check unload equipment for
proper rotation.

Unload Manual Operation

To check manual operation move the Unload switch to the MANUAL position. Check unload equipment
for proper rotation.

Accutrol Sweep Metering System Operation

To check the metering operation turn the knob clockwise and the metering speed should increase.
The metering system should be turning clockwise when viewed from above. Turning the knob
counterclockwise will decrease the speed. When the meter system is set to maximum (1000) the meter
roll speed should be 2.4 RPM. Turn the Unload switch OFF after t hese checks are comple te. The bottom
auger will continue to run for 60 seconds (default clean out delay setting) after the switch is turned OFF to
allow for clean out.

Fan Switch

Momentarily turn the Fan switch to ON and observe the fan for rotation.

Burner Safety

To check the burner safety function, first make sure the main gas valve is OFF. Turn the Fan switch ON
and allow the fan to start. Then, turn the Hea ter switch ON. The dryer will go through a 15 seconds purse
time follower by a 10 seconds ignition time. The dryer will them shut down. The safety message, “Ignition
Failure Fan #” will appear.

Burner Test Fire

Test fire the burner by starting the fan. Adjust the plenum temperature set point to 140°F (60°C). Turn ON
the fuel supply them, turn the Burner switch to ON. After the 15 seconds purge time, manually latch the
electronic shut off valve (maxon valve) during the ignition time. The burner should illuminate and the
plenum temperature will start to increase. Adjust the High-Fire adjustment valve so that the burner
pressure gauge reads 25-30 ounces of pressure. (See Figure 7A on Page 36.) When the plenum
temperature reaches the set point, the cycle solenoid will close. Adjust the Low-Fire valve so that the
burner pressure gauge reads 6-8 ounces of pressure. The computer should cycle the burne r between high
and low 3 to 4 times a minute. If, during normal operation, the burner remains on High-Fire or the dryer
does not get to operating temperature, slightly open the High-Fire valve. If the burner stays on
Low-Fire and does not cycle, slightly close the Low-Fire valve.

PNEG-1458 T-Series Tower Dryer 35

7. Test Firing

Dryer Shut Down

To shut down the dryer,

1. Close the fuel supply valve at the tank or valve along the fuel line.

2. If the burner is operating, let the dryer run out of fuel and it will shut down automatically due to loss
of flame.

3. Close the fuel valve at the dryer and press the Dryer Power Stop button.

4. Turn OFF the control power.

5. Turn OFF the safety disconnect handle on the front of the power box and turn OFF the main power
to the dryer.

Emergency

In case of emergency push the Dryer Stop button or the Emergency Stop button. This will interrupt power
to the control panel and the fan, burner and all augers will stop immediately.

Figure 7A

36 PNEG-1458 T-Series Tower Dryer

8. Dryer Operation

Dryer Start-Up and Operation

Drying Temperatures

Shelled Corn

For shelled corn with an initial moisture content of 20%-30%, the recommended drying temperature
is 210°F-220°F (93°C-104°C). For lower initial moisture content, lower drying temperatures in the
180°F-200°F (82°C-93°C) range.

Small Grain

For drying small grain (wheat, oats, barley, milo), 150°F (66°C) is suggested.

Soybeans

Drying temperatures are critical in drying soybeans. A temperature of 130°F (54°C) is recommended to
keep grain temperature low.

Drying Efficiency

The general rule for obtaining the highest drying efficiency is to use the highest possible drying
temperatures which will not adversely affect grain quality.

Dryer Shut Down

Cooling Hot Grain

If the dryer is to be shut down while filled with grain, it is recommended that hot grain be cooled for
10 to 15 minute, especially in cold weather, to prevent water vapor condensation a nd possible freezing of
such condensate following shut down.

Initial Setup Parameters

Turn the Control Power switch to ON. When the Boot screen appears touch the Start Dryer button. The
computer will run a quick check of the system network after which the Operation screen will appear.

Timer and Delay Settings

Setting the timers for the vision dryer is a simple procedure. To set the timers touch the button
at the bottom of Operation screen. A new screen will appear called the Select Timers to Modify screen.

(See Figure 8A on Page 38.) As you can see there are five (5) timers that you can modify:

1. Load timer

2. Out of grain (OOG) timer

3. Fan delay timer

4. Cool down timer

5. Unload delay timer

PNEG-1458 T-Series Tower Dryer 37

8. Dryer Operation

1. Load delay: This delay is used to delay the starting of the load auge r when the dryer is unloading t o

prevent the load auger from cycling to often.

2. Out of grain (OOG) timer: The OOG timer should be set to the maximum time it takes for the
dryer to refill during continuous or batch drying modes. Note that the Vision computer will display the
time required to fill the dryer on the previous load operation to aid you in setting an accurate time. If
the dryer runs out of grain while the Load Auger switch is in the AUTO position, the OOG timer
automatically shuts off the dryer after the period of time preset on the timer. NOTE: The time it took

to load the dryer for the previous load operation is displayed directly below the OOG button in
green letters.

3. Fan delay timer: The fan sequence delay timer is not used on 1 fan dryers.

4. Cool down timer: The cool down timer is used to control the amount of time the fan will continue to

run on a non heat related shut down. To set the time, touch the Cool Down Timer button and
enter the minutes and seconds you wish for the fan to run. Entering Zero in for minutes and seconds
will cause the fan to stop immediately on a shut down warning. NOTE: Pressing the Stop button will

override the cool down mode and cause an immediate shut down of the fans.

5. Unload delay timer: The unload delay timer is used to control the amount of time the unload auger
runs after the metering rolls stop to allow the unload auger to clean itself out.

Figure 8A

To setup a timer touch the button of the timer you wish to modify. The Modify Timer Set Point screen
will then be displayed. (See Figure 8B on Page 39.) Note that there are two (2) number pads on this
Modify screen. The left number pad is used to modify the minutes and the right number pad will modify
the seconds. Touching the Default button will automatically set the timer to the default set point for that
timer. The Accept button will save the timer set point displayed in the time display. Touching cancel will
exit the Modify Timer Set Point screen without saving any changes and the timer will stay at the currently
saved set point.

Once you have the timer set points set touching the Exit button at the bottom of the Modify Timer
Set Point screen will return you to the Operation screen.

38 PNEG-1458 T-Series Tower Dryer

Figure 8B

8. Dryer Operation

Setting the Temperatures

Setting the temperature set points for the dryer is a simple procedure. To adjust the temperature
set points touch the button at the bottom of Operation screen. A new screen will appear called the
Select Temperature Set Point to Modify screen. (See Figure 8C.) As you can see you modify the set point
for the plenum by touching the Plenum 1 Temperature button.

The plenum temperature set point range is 80°F-250°F and the current temperature set point for each
plenum is displayed next to the corresponding Plenum button.

Figure 8C

PNEG-1458 T-Series Tower Dryer 39

8. Dryer Operation

The grain temperature set point range is 80°F-150°F and the current temperature set point for the grain
temperature is displayed next to the Grain Temperature button.

Modifying a temperature set point is much like setting a timer described on Page 25. Touch the desired
button of the set point you wish to change. The Modify Temperature Set Point screen will appear. Enter
the desired temperature using the displayed number pad then touch the Accept button. Touching the
Exit button at the bottom of the Select Temperature Set Point to Modify screen will return you to the
Operators screen.

Start-Up

Start-Up Procedure

At the beginning of each harvest and before filling the dryer with grain make sure to inspect the dryer for
rodent damage, proper belt tension and missing or damaged safety shields. Test operate the dryer using
the pre-start check procedures.

1. Before attempting to operate the dryer make sure that all safety shields and access doors are in place
and closed and all personnel are clear of the grain dryer and grain handling machinery.

2. Turn all selector switches on the control panel to the OFF position.

3. Turn ON the electrical power supply to the dryer and move the safety disconnect handle mounted on
the dryer’s power box to ON.

4. Turn the Control Power switch to ON. The switch will illuminate. The vision control computer will boot
up. At this point the controller will lock out all other dryer functions. Once the Boot screen appears,
touch the Start Dryer button and the dryer will perfo rm its safety circuit checks. If a fault is found the
cause will be displayed on the Display screen (Touch screen). If all safeties do not detect a problem.
The dryer is ready to be started.

5. Move the Load Auger switch to MANUAL and push the Dryer Start switch. The fill conveyor will
immediately start and the Load Auger switch will illuminate. If additional loading equipment is wired
to the dryer it will also start immediately.

6. When the dryer is full of grain the fill conveyor will stop automatically and any auxiliary loading
equipment wired to the dryer will also stop.

The dryer is now ready to begin drying grain. See Page 41 for advanced moisture control dryer operation.

40 PNEG-1458 T-Series Tower Dryer

8. Dryer Operation

Moisture button

Maximum grain
temperature button

V a ri ab le button

Continuous Flow Drying Mode Using Advanced Moisture Control

Full Heat Continuous Flow Operation

This section begins with Step 7 and it is assumed that Step 1 through Step 6 in the start-up procedure
described on Page 40 have been completed.

7. Touch the Setup button at the bottom of the Dryer Operation screen. Once the Hardware Parameter
screen is displayed, touch the Drying Mode button. NOTE: Tower Dryers are always operated in the

continuous flow mode. Press the Accept button and return to the Hardware Parameter screen.

8. Touch the M/C Setup button. When the Moisture Control Selection window appears select the
MOISTURE then VARIABLE moisture control option. Then set the maximum grain temperature
under the Safety Parameters group. Now touch the Setup button then the Unload Parameters button.
When the Unload Parameters window appears, set the % (percent) MAXIMUM Unloading Rate to a
value slightly lower than the maximum unload rate of the unloading equipment. (NOTE: This

percentage will need to be experimentally found by manually operating the dryer unload at various
unload rates to determine the maximum unload rate which the equipment can handle.) Set the

MINIMUM unloading rate at 10%. Once these values have been determined, touch the Accept/Exit
button. In this screen, you also have the option of automatically adjusting the drying temperature
downward if the automatic moisture control continuously calls for an unload rate which is higher than
the maximum unload rate. To select this option, turn the Plenum Temperature Manager to the “ON”
position. (See Page 28 under the Setup screen.) You have the option of controlling the frequency at
which the plenum temperature will be adjusted (time between possible steps) and the size of each
temperature change for each step (size of temperature steps). These settings will be a trial and error
adjustment that will be made based on the site of the unload equipment. Initially, the step time should
be “15 MINUTE” and the size of the temperature step should be “AUTO”. If drying conditions ch ange
after the plenum temperature manager has lowered the drying temperature, the plenum t emperature
will also re-increase the drying temperature.

PNEG-1458 T-Series Tower Dryer 41

Figure 8D

8. Dryer Operation

9. Now touch the Setup button >> Extended Setup button >> Printer Setup. When the Storage
Parameters window appears select the type of grain that is to be dried and select the storage bin to
be used (the bin number is for reference only and has nothin g to do with the control of moisture). The
optional printer can also be enabled or disabled by touching the Printer Setup button. After you have
made the selection, touch the Exit button to accept and exit.

10. You will also see a button to calibrate the moisture sensors. Do not calibrate the sensors at
this time.

11. Now touch the Exit button at the bottom of the screen and return to the Dryer Operation screen.
The setup is almost complete and you are now ready to begin drying grain using the variable

moisture control system. The following steps start the flow of grain through the dryer and finish
setting up the moisture control.

12. Make sure the Unload switch is OFF.

13. Open the main fuel supply valve on the tank if using LP gas or the valve in the fuel supply line if using
natural gas.

14. The dryer should already be filled with grain. Turn the Load Auger switch to the AUTO position. In
both the AUTO and MANUAL positions, the Dryer Grain Level switch will automatically keep the
dryer full of grain. In the AUTO position, the dryer will shut down after a preset time period using the
out of grain timer.

15. Look in the drying reference tables section on Pages 43-48 for the chart settings that correspond to
the model of dryer. Pick the initial moisture content and the drying temperature to select an initial
unload rate.

16. Turn the Fan switch to ON. The fan will start and the switch will illuminate when air pressure
is detected.

17. Start the burner by turning the Heater switch to ON. After purging for approximately 15 second
the burner will fire and the Heater switch will illuminate. This indicates that the flame sensing circuit
is sensing burner flame. For information concerning burner adjustment see the dryer pre-start checks
section on Page 34 of this manual.

18. If the dryer is filled with wet corn, run the fan/heater 6 minute/point of moisture to be removed before
starting the unload.

42 PNEG-1458 T-Series Tower Dryer

9. Drying Time Tables

Reference Setting Table -- 1050

(Corn)

Moisture

In Out

17% 15% 71 83 95
18%15%546372
19% 15% 44 51 58
20%15%374350
21% 15% 32 38 43
22%15%293338
23% 15% 25 30 34
24%15%232630
25% 15% 20 24 27
26%15%182124
27% 15% 16 19 22
28%15%151720
29% 15% 13 15 18
30%15%121416
32% 15% 10 12 13
35% 15% 8 9 11

170 F

% Unload Rate

190 F

% Unload Rate

210 F

% Unload Rate

(Wheat, Barley, Milo)

Moisture

In Out

15% 13% 50 59 70
16%13%384453
17% 13% 31 36 43
18%13%263137
19% 13% 23 27 32
20%13%202428
21% 13% 18 21 25
23%13%141720
25% 13% 11 13 16

140 F

% Unload Rate

155 F

% Unload Rate

175 F

% Unload Rate

(Soybeans)

Moisture

In Out

15% 13% 57 66 74
16%13%434955
17% 13% 35 40 45
18%13%303438
19% 13% 26 29 33

120 F

% Unload Rate

130 F

% Unload Rate

140 F

% Unload Rate

20%13%232629
21% 13% 20 23 26
23%13%161821
25% 13% 13 15 17

PNEG-1458 T-Series Tower Dryer 43

9. Drying Time Tables

Moisture

In Out

17% 15% 85 99 -­18% 15% 65 75 86
19% 15% 53 61 69
20% 15% 44 51 60
21% 15% 38 45 51
22% 15% 35 39 45
23% 15% 30 36 40
24% 15% 27 31 36
25% 15% 24 29 32
26% 15% 22 25 29
27% 15% 19 23 26
28% 15% 18 20 24
29% 15% 16 18 21
30% 15% 14 17 19
32% 15% 12 14 15
35% 15% 10 11 13

Reference Setting Table -- 1260

(Corn)

170 F

% Unload Rate

190 F

% Unload Rate

210 F

% Unload Rate

(Wheat, Barley, Milo)

Moisture

In Out

15% 13% 60 70 83
16% 13% 45 53 63
17% 13% 37 43 51
18% 13% 31 37 44
19% 13% 27 32 38
20% 13% 24 28 33
21% 13% 21 25 30
23% 13% 17 20 24
25% 13% 14 16 19

140 F

% Unload Rate

155 F

% Unload Rate

175 F

% Unload Rate

(Soybeans)

Moisture

In Out

15% 13% 68 78 88
16% 13% 51 58 65
17% 13% 41 47 53
18% 13% 35 40 45
19% 13% 31 35 39
20% 13% 27 31 35
21% 13% 24 28 31
23% 13% 19 22 25
25% 13% 15 18 20

120 F

% Unload Rate

130 F

% Unload Rate

140 F

% Unload Rate

44 PNEG-1458 T-Series Tower Dryer

9. Drying Time Tables

Reference Setting Table -- 1575

(Corn)

Moisture

In Out

17% 15% -- -- -­18% 15% 89 -- -­19% 15% 72 85 97
20%15%627282
21% 15% 53 62 71
22%15%475563
23% 15% 42 49 56
24%15%374450
25% 15% 33 40 45
26%15%303540
27% 15% 27 31 36
28%15%242832
29% 15% 22 26 29
30%15%202326
32% 15% 17 19 22
35%15%131517

170 F

% Unload Rate

190 F

% Unload Rate

210 F

% Unload Rate

(Wheat, Barley, Milo)

Moisture

In Out

15% 13% 83 97 -­16%13%637387
17% 13% 51 60 71
18%13%445160
19% 13% 38 44 53
20%13%333946
21% 13% 30 35 41
23%13%242833
25% 13% 19 22 26

140 F

% Unload Rate

155 F

% Unload Rate

175 F

% Unload Rate

(Soybeans)

Moisture

In Out

15% 13% 95 -- -­16%13%718191
17% 13% 57 66 74
18%13%495663

120 F

% Unload Rate

130 F

% Unload Rate

140 F

% Unload Rate

19% 13% 43 49 55
20%13%384348
21% 13% 33 38 43
23%13%273134
25% 13% 24 24 28

PNEG-1458 T-Series Tower Dryer 45

9. Drying Time Tables

Moisture

In Out

17% 15% 92 -- -­18% 15% 69 81 92
19% 15% 56 66 75
20% 15% 48 56 64
21% 15% 42 48 56
22% 15% 37 43 49
23% 15% 33 38 43
24% 15% 29 34 39
25% 15% 26 30 35
26% 15% 23 27 31
27% 15% 21 24 28
28% 15% 19 22 25
29% 15% 17 20 23
30% 15% 15 18 21
32% 15% 13 15 17
35% 15% 10 12 14

Reference Setting Table -- 1875

(Corn)

170 F

% Unload Rate

190 F

% Unload Rate

210 F

% Unload Rate

(Wheat, Barley, Milo)

Moisture

In Out

15% 13% 65 76 90
16% 13% 49 57 68
17% 13% 40 47 55
18% 13% 34 40 47
19% 13% 29 34 41
20% 13% 26 30 36
21% 13% 23 27 32
23% 13% 18 21 26
25% 13% 15 17 21

140 F

% Unload Rate

155 F

% Unload Rate

175 F

% Unload Rate

(Soybeans)

Moisture

In Out

15% 13% 74 84 95
16% 13% 55 63 71
17% 13% 45 51 57
18% 13% 38 43 49

120 F

% Unload Rate

130 F

% Unload Rate

140 F

% Unload Rate

19% 13% 33 38 43
20% 13% 29 34 38
21% 13% 26 30 34
23% 13% 21 24 27
25% 13% 17 19 21

46 PNEG-1458 T-Series Tower Dryer

9. Drying Time Tables

Reference Setting Table -- 20100

(Corn)

Moisture

In Out

17% 15% -- -- -­18% 15% 79 92 -­19% 15% 65 75 86
20%15%556473
21% 15% 48 56 64
22%15%424956
23% 15% 37 44 50
24%15%333944
25% 15% 30 35 40
26%15%273136
27% 15% 24 28 32
28%15%222529
29% 15% 19 23 26
30%15%182124
32% 15% 15 17 20
35%15%121416

170 F

% Unload Rate

190 F

% Unload Rate

210 F

% Unload Rate

(Wheat, Barley, Milo)

Moisture

In Out

15% 13% 74 87 -­16%13%566578
17% 13% 46 53 63
18%13%394554
19% 13% 34 39 47
20%13%303541
21% 13% 27 31 37
23%13%212529
25% 13% 17 20 24

140 F

% Unload Rate

155 F

% Unload Rate

175 F

% Unload Rate

(Soybeans)

Moisture

In Out

15% 13% 85 97 -­16%13%637281
17% 13% 51 58 66
18%13%445056

120 F

% Unload Rate

130 F

% Unload Rate

140 F

% Unload Rate

19% 13% 38 43 49
20%13%343843
21% 13% 30 34 38
23%13%242731
25% 13% 19 22 25

PNEG-1458 T-Series Tower Dryer 47

9. Drying Time Tables

Moisture

In Out

17% 15% -- -- -­18% 15% 91 -- -­19% 15% 74 86 99
20% 15% 63 73 84
21% 15% 55 64 73
22% 15% 48 56 64
23% 15% 43 50 57
24% 15% 38 44 51
25% 15% 34 40 45
26% 15% 31 36 41
27% 15% 27 32 37
28% 15% 25 29 33
29% 15% 22 26 30
30% 15% 20 24 27
32% 15% 17 20 22
35% 15% 13 16 18

Reference Setting Table -- 24100

(Corn)

170 F

% Unload Rate

190 F

% Unload Rate

210 F

% Unload Rate

(Wheat, Barley, Milo)

Moisture

In Out

15% 13% 85 99 -­16% 13% 64 75 89
17% 13% 52 61 73
18% 13% 44 52 62
19% 13% 39 45 54
20% 13% 34 40 47
21% 13% 30 36 42
23% 13% 27 28 37
25% 13% 19 23 27

140 F

% Unload Rate

155 F

% Unload Rate

175 F

% Unload Rate

(Soybeans)

Moisture

In Out

15% 13% 97 -- -­16% 13% 72 82 92
17% 13% 58 67 75
18% 13% 50 57 64

120 F

% Unload Rate

130 F

% Unload Rate

140 F

% Unload Rate

19% 13% 43 50 56
20% 13% 38 44 49
21% 13% 34 39 44
23% 13% 27 31 35
25% 13% 22 25 28

48 PNEG-1458 T-Series Tower Dryer

10. Service

Pre-Seasonal Inspection and Service

The dryer is made of weather-resistant material and is designed to require minimum service. However,
each season we recommend the following items be checked befo re the unit is used and any damaged or
questionable parts replaced. These checks will help eliminate possible failures and assure dependable
operation of the equipment.

1. Shut off electrical power. Open power box and control box and inspect for moisture, rodent damage
or accumulated foreign material present. Inspect and tighten any loose terminal connections.
Replace any damaged or deteriorated wiring.

2. Lubricate the blowers, motors and metering system as outlined in the lubrication table on Page 52.

3. Check blower belts for proper tension.

4. Inspect and clean the burner. Visually check that no holes in the stainless steel air mixing plates are
plugged. If burner ports are plugged, clear them with a piece of wire or a drill bit. (NOTE: Pre-2002
model dryers require a #47 drill bit.)

5. Check electrical connections at both the flame rod and spark plug. Clean spark ignitor and flame rod.
Replace if necessary.

6. Check drain valve on gas train to ensure that there is no water in the gas train. Valve should always
be open when the dryer is not being used. Ensure that drain valve is closed prior to dryer operation.

7. Check the discharge area to ensure that the area is cleaned of stalks and old grain. Inspect the
sweeps for excessive wear.

IMPORTANT: The covers to the discharge sections on the tower dryers must be in place and

clamped down at all times when the dryer is in operation. If the cover is off during
operation, the vacuum created by the blowers will suck foreign matter from the
discharge area and deposit it in the heat section of the dryer plugging the inside
screens of the dryer also creating a fire hazard.

See pre-season check list on Page 51.

Seasonal Inspection and Service

IMPORTANT: The covers to the metering system access door(s) must be in place at all times when

the dryer is in operation. Before turning blowers always make sure this door is
clamped into position.

1. Follow lubrication guides as outlined in the lubrication table.

2. Do not let grain fines and dust accumulate inside the cooling section of the dryer. Bi-weekly if
drying most products or daily if drying milo, clean the cooling chamber floor of fines and dust. Swee p
down the cooling section sheets if necessary. Fines can be swept into the unload systems.

3. Do not let grain fines and dust accumulate inside the heat section of the dry er. Daily check the
hopper divider that separates the heat section from the cooling section to ensure that it remains clean
and open.

4. When cleaning dryer, check the grain discharge area on the dryer. On accutrol sweep dryers check
the sweeps for trash or stalk build ups that could be obstructing grain flow.

5. If undried grain is left in the dryer for more than a week during the drying season, inspect the
plenum roof to make sure that there is no wet grain sticking to the roof that could restrict grain flow.
When the dryer is restarted make sure that all grain columns are evenly unloading.

PNEG-1458 T-Series Tower Dryer 49

10. Service

6. When drying dirty corn in high humidity conditions, sludge may build up in the upper outside sheets
of the dryer. This build up can be removed by either washing the sheets down with a high pressure
water hose or by shutting incoming grain, dropping the grain level to below the plugged area and
then running the fans and burner to dry the affected area. Tapping or sweeping the sheets will
dislodge debris. Attempting to sweep off the sheet build up while it is still wet will usually plug the
sheet more.

In Case of Fire

1. When you first detect a fire, the entire drying operation should be shut down, including grain flow
into and out of the dryer. The emergency controls may have already done this. Also, shut off the
electrical and fuel supply to the dryer.

2. Do not try to cool a fire by running fan(s).

3. Never run grain from the dryer into the elevator or storage if a fire is known or suspected.

4. Locate the area of the fire.

5. If the fire can be extinguished with a fire extinguisher, water hose or by removing the burning
material, this should be done right away. Watch the dryer closely for another fire after one
has occurred.

6. Emergency discharge slide gates at the bottom of each column as well as easy access gates
located near the hopper discharge area permit fast dumping of each individual grain column.

7. A fire extinguisher should be located at or near the dryer, if a fire seems to be getting out of control
call the fire department.

End of Season Service

1. Empty the dryer at the end of the drying season. The dryer should not be used for grain storage.
Grain left in there for an extended period of time can become wet, swell and spoil. Chunks of
spoiled grain can plug the metering system and swelled grain places undue stress on the interior
and exterior sheeting of the dryer.

2. Clean out the plenum roof grain cushion and remove any grain that may be hanging up on the
plenum roof.

3. Make sure the grain exchangers are clean.

4. Clean out the hopper that divides the heat section from the cooling section.

5. Clean the cooling chamber floor.

6. Remove all grain and trash from the metering drum floor. This grain can be raked out by hand by
opening the slide gates located in the hopper bottom of the dryer.

7. Make sure gas supply is shut off to the dryer.

8. Open the gas train drain valve located on the bottom of the gas train.

9. It is a good practice to cover the burner with a tarpaulin or plastic to ensure a clean burner.

50 PNEG-1458 T-Series Tower Dryer

Pre-Season Service Check List

___ Lubricate blower bearings.
___ Lubricate blower motor bearings, if needed.
___ Check blower belts and adjust if necessary.
___ Clean burner ports.
___ Inspect flame rod and spark ignitor.
___ Check oil levels in gear boxes.
___ Inspect divider hopper between heat and cooling section. Clean if necessary.
___ Inspect bindicator grain level switches.
___ Inspect metering system access door cover seals.
___ Lubricate metering system access door cover hold down latches.
___ Lubricate modulator motor linkage.
___ Check butterfly operation in modulating valve.

10. Service

___ Check gas pressure gauges.
___ Check interior of maxon shut off valves for corrosion. Clean if necessary.
___ Clean control and power panels, tighten loose connections and check for leaks.
___ Inspect metering systems. Clean accumulated stalks and old grain.
___ Start-up dryer and check operating controls.
___ Other: Itemize ___________________________________________________________

End of Season Shut Down Procedure

___ Start unload and empty all grain from dryers.
___ Clean out grain cushion (on plenum roof under fill spout). Clean plenum roof.
___ Clean off grain exchangers.
___ Clean out divider hopper, between heating and cooling section.
___ Clean inside cooling sheets and cooling floor.
___ Remove all grain and trash from unload section of dryer.
___ Open emergency grain discharge doors (and drain doors in zimmerman dryers).
___ Open drain valve in gas train.
___ Cover burner with a tarp or plastic sheeting.

PNEG-1458 T-Series Tower Dryer 51

10. Service

Lubrication Table

Location Instructions

Accutrol (sweep unload)
top and bottom drive
bearings.

Accutrol (sweep unload)
coupling hub.

Blower shaft bearings.

Blower motor bearings.

Metering variable speed
drive motor.

Accutrol gear box.

Lubricate slowly until lube
shows through seal.
Wipe clean.

Remove the two (2) lube
plugs from the cover. Lubricate
slowly until grease begins
seeping through relief plug.

Lubricate bottom bearing
plug slowly counting the grease
gun pump until lube shows
through the seal. Wipe clean.
Use same # of grease gun
pumps for top bearing.

See motor lubrication
procedure below.

See motor lubrication
procedure below.

Grease filled gear box.
Replenish grease to the first
stage (upper) reduction
mechanism through grease
fitting provided (typically
quantity= 0.3 oz. of grease.

Type of

Lubrication

High quality, grade #2
lithium based grease.

High quality, grade #2
lithium based grease.

High quality, grade #2
lithium based grease.

High quality, grade #2
lithium based grease.

High quality, grade #2
lithium based grease.

High quality, grade #2
lithium based grease.

Lubrication Interval

Beginning of season (annually).

Beginning of season (annually).

Every 4 weeks of
dryer operation.

Every 2 years (Normal
operation, ever 8-10 months
continuous operation).

Every 2 years (Normal
operation, ever 8-10 months
continuous operation).

Beginning of season (annually).

¹Lubrication of motors - Operate motor for 20 minutes. Clean grease fitting. Remove grease relief plug and using a
low pressure grease gun, pump in the required grease. After re-lubricating, allow motor to run for 10 minutes before replacing
relief hardware. DO NOT over grease.

52 PNEG-1458 T-Series Tower Dryer

11. Safety Circuit Shut Down Messages

Shut down warning window:
Touch the Help button
to display the shut down
help window.

Figure 11A

Fan/Heater Generated Errors

The following is a list of errors that are generated with the fan/heater controlle r. Each fan/heater has there
own set of safeties which are listed below. You will need to inspect the controller associated with the error.
Example: If you get this error, it is telling you the problem is with housing 1 (bottom most fan) High-Limit.

(See Figure 11A.)

Air Switch x Stuck

The air switch contacts have closed prior to the fan starting, indicating a freewheeling blade or improper
setting of the air switch. The message will distinguish between which fan caused the shut down. This
indicates that 12 VDC has been lost to terminal J4-04 on the Fan/Heater board.

Fan x Loss of Airflow

This error message is displayed when airflow (air pressure) has been established but was lost for some
reason. This could happen if while during the dryers operation the grain has settled or shrinkage in the
grain columns causing a loss of air pressure in the plenum chamber.

Fan x No Airflow

Contacts in the air switch have never opened due to the fan not turning or the air switch may need
adjustment. The message will distinguish between which fan caused the shut down.

Flame Loss x

The flame sensor has failed to detect a burner flame which had been established but was lost for some
reason and there is a problem with the flame sensing circuitry or the dryer is not getting burner fuel.
The message will distinguish between which burner caused the shut down. The reference to the number
one is telling you that it is burner number one which is the bottom most fan.

PNEG-1458 T-Series Tower Dryer 53

11. Safety Circuit Shut Down Messages

Grain Temp Short x

This error indicates there is a shorted condition with one of the grain temperature sensors located inside
the left or right grain columns. This could be a shorted sensor or the sensor wires could be shorted.

Grain x Overheat

An over temperature condition has occurred in one of the grain columns causing the control to shut down
the dryer. This control is set at 210°F (99°C) and automatically resets itself when cool. This can be caused
from a grain column plugged with trash or the meter rolls may be adjusted to slow. Feel the grain columns
to determine which one may be causing the problems. If all the columns are hot to the touch then you will
probably need to check the meter roll settings. If not, then examine the column that feels hot, make sure
you can see the grain moving down the column screens. For more information on service see meter
roll servicing.

Housing x High-Limit

The temperature High-Limit located on the fan/burner housing has opened, indicating an over temperature
condition has occurred towards the rear of the fan/heater housing. This control is set at 200°F (93°C) and
must be manually reset. The message will distinguish between which fan housing caused the shut down.
The reference to the number one is telling you that it is fan number one which is the bottom most fan.

Ignition Failure x

This condition happens during the initial ignition of the burner. If the burner fails to light, check to make
sure that the gas has been turned ON and/or the maxon valve has been turned ON. The reference to the
number one is telling you that it is burner number one which is the bottom most fan.

Illegal Flame x

This message is displayed when the flame detection circuit of the heater is sensing flame when the burner
is supposed to be OFF. Example, if you shut down the dryer and the heater continues to burn due to a
solenoid stuck in an open state, it will generate this type of error.

Motor Overload x

One of the thermal overloads on either the fan, load, unload or auxiliary motors has opened, indicating an
over current condition. The overloads must be manually reset. The message will distinguish between
which fan overload caused the shut down. The reference to the number one is telling you that it is fan
number one which is the bottom most fan.

Vapor x High-Limit

The LP gas vapor temperature sensor located in the gas pipe train downstream from the vaporizer,
has opened indicating that the vaporizer is running too hot and must be readjusted. This sensor is
set at 200°F (93°C) and automatically resets itself when cool. The message will distinguish between which
burner caused the shut down. The reference to the number one is telling you that it is burner number one
which is the bottom most fan/heater unit, is where the malfunction is located. Try adjusting the vaporizer
coils farther away from the burners flame. You may also want to try switching the burner mode from
High/Low to ON/OFF, especially on warmer days.

54 PNEG-1458 T-Series Tower Dryer

11. Safety Circuit Shut Down Messages

Input/Output Generated Errors

The following is a list of errors that are generated with the Input/Output board located in the upper
control box.

Air System Failure

A shut down has occurred due to a air system that was installed with an integral safety switch that was in
the unit. The air system safety connections are located in the upper control box o n the terminal strip. This
can occur if this safety looses 12 VDC to terminal J1-10 on the Input/Output board. This input is jumpered
on the terminal strip when it leaves the factory a nd is usually installed in the field by a qualified electrician.

Aux Load Overload

The motor overload relay has tripped on the aux load motor circuit located in the upper control box.
This can occur if this safety looses 12 VDC to terminal J1-05 on the Input/Output board. Push the
Red button on the overload to reset this error. This is caused from the motor operating with to much of a
work load, which in turn uses more current (amperage). If the problem reoccurs then check the motor
to make sure it is not being overworked. You may need to call an electrician to measure the motors
full load amps (FLA).

Aux Unload Overload

The motor overload relay has tripped on the aux unload motor circuit located in the upper control b ox. This
can occur if this safety looses 12 VDC to terminal J1-04 on the Input/Output board. Push the Red button
on the overload to reset this error. This is caused from the motor operating with to much of a work load,
which in turn uses more current (amperage). If the problem reoccurs then check the motor to make sure
it is not being overworked. You may need to call an electrician to measure the motors full load amps (FLA).

Load Motor Overload

The motor overload has tripped on the load motor overload located in the upper control box. This can occur
if this safety looses 12 VDC to terminal J1-03 on the Input/Output board. Push the Red button on the
overload to reset this error. This is caused from the motor operating with to much of a work load, which in
turn uses more current (amperage). If the problem reoccurs then check the motor to make sure it is not
being overworked. You may need to call an electrician to measure the motors full load amps (FLA).

Meter Rolls Failed

If you have the meter roll speed adjustment turned too low (not turning), this will cause this error message.
It also could indicate that you have a defective meter roll sensor, the metering roll drive syste m has failed
to turn or broken chain or jammed metering roll is a possib ility. This can occur if the input is n ot receivin g
a 5 volt pulse on terminal J4-04 on the Input/Output board.

Out of Grain

The dryer has run low on grain and the out of grain timer has timed out, shutting the dryer down. The
unload auger will continue to run so it can clean out the remaining grain before shutting down.

PNEG-1458 T-Series Tower Dryer 55

11. Safety Circuit Shut Down Messages

Unload Motor Overload

The motor overload has tripped on the unload motor overload located in the upper control box. This
indicates that 12 VDC has been lost to terminal J1-02 on the Input/Output board. Push the Red button on
the overload to reset this error. This is caused from the motor operating with to much of a work load, which
in turn uses more current (amperage). If the problem reoccurs then check the motor to make sure it is not
being overworked. You may need to call an electrician to measure the motors full load amps (FLA).

User Safety

A shut down has occurred due to a user installed safety switch that was installed on the dryer. The user
installed safety connections are located in the upper control box on the terminal strip. This also indicates
that 12 VDC has been lost to terminal J2-01 on the Input/Output board. This input is jumpered on the
terminal strip when it leaves the factory and is usually installed in the field by a qualified electrician.

Master Display Generated Errors

The following is a list of errors that are generated with the Master Display board located in the lower
control box.

Cont-Batch Mode Chng

This error occurs when you switch the Dryer Mode switch from the continuous flow to the staged batch
position while the dryer is running in the continuous flow mode. To avoid this shut down, stop the dryer
before switching modes. Press stop to clear the error.

Network Failed FH x

This error is generated whenever Fan/Heater board has lost its communications link with the Input/Output
board (upper control panel) and the Master Display board (lower control panel). Check the ethernet cable
jacks to make sure they are plugged in tightly. An ethernet cable is a computer communication cable that
looks like the phone cable in the home. (See Figure 11B on Page 57.) The reference to the number one
(FH1) is telling you that it is fan number one which is the bottom most fan.

Network Failed Input/Output

This error is generated whenever Input/Output board (upper control panel) has lost its communications
link with the master (lower control panel door) and the Fan/Heater boards. Check the ethernet cable jacks
to make sure they are plugged in tightly. There are three (3) LED lights next to this plug, one indicates
power and the other two (2) indicate data being transmitted. These two (2) labeled RXD and TXD, should
be flashing randomly back and forth indicating network activity.

Network Failed Mast

This error is generated whenever Master Display board (lower control panel) has lost its communications
link with the Input/Output board (upper control panel door) and the Fan/Heater boards. Check the ethernet
cable jacks to make sure they are plugged in tightly.

56 PNEG-1458 T-Series Tower Dryer

11. Safety Circuit Shut Down Messages

Figure 11B

Plenum Temp Open x

This error indicates there is a open condition with the plenum temperature sensor located inside the
plenum chamber. This could be a open sensor or the sensor wires could have a open connection.

Plenum Temp Short x

This error indicates there is a shorted condition with the plenum temperature sensor located inside the
plenum chamber. This could be a shorted sensor or the sensor wires could be shorted.

Plenum x Overheat

An over temperature condition has occurred inside the dryer plenum. This control is a 300°F (149°C) limit
and automatically resets itself when cool. The message will distinguish between which plenum caused the
shut down.

PNEG-1458 T-Series Tower Dryer 57

12. Wiring Diagrams

T and F Upper Control Box with Honeywell 220V

58 PNEG-1458 T-Series Tower Dryer

12. Wiring Diagrams

PNEG-1458 T-Series Tower Dryer 59

12. Wiring Diagrams

60 PNEG-1458 T-Series Tower Dryer

T and F Upper Control Box with Honeywell 440V

12. Wiring Diagrams

PNEG-1458 T-Series Tower Dryer 61

12. Wiring Diagrams

62 PNEG-1458 T-Series Tower Dryer

12. Wiring Diagrams

PNEG-1458 T-Series Tower Dryer 63

12. Wiring Diagrams

Field Wiring Bottom Terminal Strip Power Box

64 PNEG-1458 T-Series Tower Dryer

Field Wiring Top Terminal Strip Power Box

12. Wiring Diagrams

PNEG-1458 T-Series Tower Dryer 65

12. Wiring Diagrams

Field Wiring Top Terminal Strip Power Box w/ Mod Valve

66 PNEG-1458 T-Series Tower Dryer

Remote Moisture Box

12. Wiring Diagrams

PNEG-1458 T-Series Tower Dryer 67

12. Wiring Diagrams

Fan/Heater Board Wiring

68 PNEG-1458 T-Series Tower Dryer

Main Input/Output Power Box Wiring

12. Wiring Diagrams

PNEG-1458 T-Series Tower Dryer 69

12. Wiring Diagrams

Burner Control Wiring

70 PNEG-1458 T-Series Tower Dryer

DC Motor Wiring

12. Wiring Diagrams

PNEG-1458 T-Series Tower Dryer 71

12. Wiring Diagrams

Fan Contactor and Overload (ACL)

72 PNEG-1458 T-Series Tower Dryer

Fan Contactor Part Winding Starter

12. Wiring Diagrams

PNEG-1458 T-Series Tower Dryer 73

12. Wiring Diagrams

Fan Contactor Soft Starter

74 PNEG-1458 T-Series Tower Dryer

Control Box 12 VDC Lamp Wiring

12. Wiring Diagrams

PNEG-1458 T-Series Tower Dryer 75

12. Wiring Diagrams

Control Box 12 VDC Negative Lamp Wiring

76 PNEG-1458 T-Series Tower Dryer

Control Box 12 VDC Switch Wiring

12. Wiring Diagrams

PNEG-1458 T-Series Tower Dryer 77

12. Wiring Diagrams

Control Box 120V Wiring

78 PNEG-1458 T-Series Tower Dryer

Control Box Switch Wiring

12. Wiring Diagrams

PNEG-1458 T-Series Tower Dryer 79

NOTES

80 PNEG-1458 T-Series Tower Dryer

13. Warranty

9101239_1_CR_rev7.DOC (revised July 2009)

GSI Group, LLC Limited Warranty

The GSI Group, LLC (“GSI”) warrants products which it manufactures to be free of defects in materials and workmanship
under normal usage and conditions for a period of 12 months after sale to the original end-user or if a foreign sale,
14 months from arrival at port of discharge, whichever is earlier. The end-user’s sole remedy (and GSI’s only obligation)
is to repair or replace, at GSI’s option and expense, products that in GSI’s judgment, contain a material defect in materials
or workmanship. Expenses incurred by or on behalf of the end-user without prior written authorization from the GSI
Warranty Group shall be the sole responsibility of the end-user.

Warranty Extensions:

The Limited Warranty period is extended for the following products:

Product Warranty Period

Performer Series Direct Drive Fan Motor 3 Years

AP Fans and Flooring

Cumberland
Feeding/Watering
Systems

Grain Systems Grain Bin Structural Design 5 Years
Grain Systems

Farm Fans
Zimmerman

All Fiberglass Housings Lifetime
All Fiberglass Propellers Lifetime
Feeder System Pan Assemblies 5 Years **
Feed Tubes (1-3/4" and 2.00") 10 Years *
Centerless Augers 10 Years *
Watering Nipples 10 Years *

Portable and Tower Dryers 2 Years
Portable and Tower Dryer Frames and

Internal Infrastructure †

5 Years

* Warranty prorated from list price:
0 to 3 years - no cost to end-user
3 to 5 years - end-user pays 25%
5 to 7 years - end-user pays 50%
7 to 10 years - end-user pays 75%
** Warranty prorated from list price:
0 to 3 years - no cost to end-user
3 to 5 years - end-user pays 50%

† Motors, burner components

and moving parts not included.
Portable dryer screens included.
Tower dryer screens not included.

GSI further warrants that the portable and tower dryer frame and basket, excluding all auger and auger drive components,
shall be free from defects in materials for a period of time beginning on the twelfth (12
and continuing until the sixtieth (60

th

) month from the date of purchase (extended warranty period). During the extended

th

) month from the date of purchase

warranty period, GSI will replace the frame or basket components that prove to be defective under normal conditions of
use without charge, excluding the labor, transportation, and/or shipping costs incurred in the performance of this
extended warranty.

Conditions and Limitations:

THERE ARE NO WARRANTIES THAT EXTEND BEYOND THE LIMITED WARRANTY DESCRIPTION SET FORTH
ABOVE. SPECIFICALLY, GSI MAKES NO FURTHER WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
INCLUDING, WITHOUT LIMITATION, WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE OR USE IN CONNECTION WITH: (I) PRODUCT MANUFACTURED OR SOLD BY GSI OR (II) ANY ADVICE,
INSTRUCTION, RECOMMENDATION OR SUGGESTION PROVIDED BY AN AGENT, REPRESENTA TIVE OR
EMPLOYEE OF GSI REGARDING OR RELATED TO THE CONFIGURATION, INSTALLATION, LAYOUT, SUITABILITY
FOR A PARTICULAR PURPOSE, OR DESIGN OF SUCH PRODUCTS.

GSI shall not be liable for any direct, indirect, incidental or consequential damages, including, without limitation, loss of
anticipated profits or benefits. The sole and exclusive remedy is set forth in the Limited Warranty, which shall not exceed
the amount paid for the product purchased. This warranty is not transferable and applies only to the original end-user. GSI
shall have no obligation or responsibility for any representations or warranties made by or on behalf of any dealer, agent
or distributor.

GSI assumes no responsibility for claims resulting from construction defects or unauthorized modifications to products
which it manufactured. Modifications to products not specifically delineated in the manual accompanying the equipment at
initial sale will void the Limited Warranty.

This Limited Warranty shall not extend to products or parts which have been damaged by negligent use, misuse, alteration,
accident or which have been improperly/inadequately maintained. This Limited Warranty extends solely to products
manufactured by GSI.

Prior to installation, the end-user has the responsibility to comply with federal, state and local codes which apply to the
location and installation of products manufactured or sold by GSI.

PNEG-1458 T-Series Tower Dryer 81

This equipment shall be installed in accordance with

the current installation codes and applicable

regulations, which should be carefully fo llowed in all

cases. Authorities having jurisdiction should be

consulted before installations are made.

Copyright © 2011 by GSI Group
Printed in the USA

GSI Group

1004 E. Illinois St.

Assumption, IL 62510-0020

Phone: [phone]

Fax: [phone]

www.gsiag.com

CN-204511