AGI NECO D1660 Product manual

7713402 R0
Revised: MARCH 2023 1
Continuous Mixed-Flow Grain Dryer
Grain Dryer
Technical Reference Manual
This Technical Reference Guide provides support for the installation and operation of the Continuous Mixed-
Flow Grain Dryer (D and K Series).
Applicable Models:
• D1660, D1670, D1680, D1690, D16106, D16120, D16140, D16160
• D24108, D24150, D24180, D24210, D24240, D24260, D24330, D24380
• D32260, D32340, D232440, D32500, K600, K700, K800, K900

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CONTINUOUS MIXED-FLOW GRAIN DRYER – GRAIN DRYER

CONTINUOUS MIXED-FLOW GRAIN DRYER – GRAIN DRYER
7713402 R0 3
CONTENTS
1. General Design Criteria .......................................................................................................................... 5
Tier Information .............................................................................................................................. 5
Body Section Information ............................................................................................................... 5
Standard Lengths............................................................................................................................. 5
Total Tier Levels per Length ............................................................................................................ 5
Dryer Model Number ...................................................................................................................... 6
Dryer Rating Label ........................................................................................................................... 6
2. Parts of the Dryer ................................................................................................................................... 7
Front of Dryer .................................................................................................................................. 7
Rear of Dryer ................................................................................................................................... 9
Catwalk Positions .......................................................................................................................... 10
3. Fuel Supply Components...................................................................................................................... 11
Liquid Propane (LP) ....................................................................................................................... 11
Natural Gas (NG) ........................................................................................................................... 17
4. Burner Control and Temperature Control........................................................................................... 18
5. Blower System ...................................................................................................................................... 22
6. Grain Cooling System (optional) .......................................................................................................... 23
7. Grain Level Switches............................................................................................................................. 25
8. Discharge Equipment............................................................................................................................ 31
9. Control Components ............................................................................................................................ 39
Main Control Box........................................................................................................................... 39
PLC Details ..................................................................................................................................... 41
HMI Enclosure ............................................................................................................................... 44
Moisture/Temperature Sensor Overview ..................................................................................... 48
10. Discharge Plugged Sensor .................................................................................................................. 50
11. External Transport(s) .......................................................................................................................... 51
12. Optional External Transport Configurations ..................................................................................... 52
13. Wiring External Transports ................................................................................................................ 55
14. Wiring NEMA Starters / IEC Starters / Air Systems .......................................................................... 56
15. PLC and HMI Recorded Data Sheet.................................................................................................... 57
16. Updating the PLC and HMI Programs ................................................................................................ 59
17. Main Control Box Terminal Strip (D Series) ...................................................................................... 63
18. Main Control Box Terminal Strip (K Series)....................................................................................... 64
19. Honeywell Burner Control Fault Codes ............................................................................................. 65
20. KS45 & TB45 Controller LEDs ............................................................................................................. 67
21. HMI Wiring Connections .................................................................................................................... 72
22. Dryer Master Moisture Sensor Circuit Board.................................................................................... 75

CONTINUOUS MIXED-FLOW GRAIN DRYER – GRAIN DRYER
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23. Commander Wi-Fi Access Vijeo Air App (D Series Only) .................................................................. 76
24. Dryer Temperature Considerations ................................................................................................... 79
25. Manual Dryer Speed........................................................................................................................... 80

7713402 R0 5
1. General Design Criteria
Note
Continuous Mixed-Flow Grain Dryer design is based on load factors. If you wish to add more
sections to your dryer in the future, please let NECO know when you place your order so it will
be designed to fit to your expanding needs.
Tier Information
• A tier is a set of parts that make up ONE layer of the dryer (also called body section).
• The top four tiers on all dryers are made up of 18 gauge material.
• The tiers below the 18 gauge tiers will be made of heavier materials, based on the required strength of that
dryer configuration.
Body Section Information
• An assembled dryer section may be made up of:
– 3 to 7 tiers
– a blower
– a burner
• The lowest body section is attached to the dryer frame and includes the entrance door.
Standard Lengths
Table 1. Standard Lengths
Length in feet Length in inches Length in meters
16 192 4.88
24 288 7.32
32 384 9.75
Total Tier Levels per Length
Table 2. Total Tier Levels per Length
Length in feet Length in meters Minimum Tiers Maximum Tiers
16 4.88 4 14
24 7.32 6 24
32 9.75 12 24
CONTINUOUS MIXED-FLOW GRAIN DRYER – GRAIN DRYER 1. GENERAL DESIGN
CRITERIA

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Dryer Model Number
D Series Model Numbers
The dryer model number provides information on the dryer length and capacity.
• The two digits after “D" are the dryer length.
• Multiply the remaining digits by 10 to determine the approximate bushel capacity for corn. In this example:
40 x 10 = 400 bushels
Example: D 16 60
•16 indicates this model is a 16 foot long dryer
•60 indicates this model has a capacity of 60 x 10 = 600 bushels
Using the same process, a model D32500 would be a 32 foot long dryer with an approximate capacity of 5,000
bushels.
K Series Model Number
The three digits after “K” indicate the nominal storage capacity. For example, a K600 holds approximately 600
bushels of grain.
Dryer Rating Label
Figure 1. Dryer Rating Label — CE
MODEL: D24210 FUEL TYPE:L P
PART / SERIAL NO: DRYR-####
SUPPLY VOLTAGE:3 80 VAC PHASE:3
FREQUENCY: 50 Hz FULL LOAD AMPS:
CONTROL VOLTAGE: 120 VACS CCR:5 kA
LARGEST MOTOR AMP:
WARNING:
CLOSED EXCEPT WHEN SERVICING.
MAXIMUM INPUT RATE: KW MM BTU/H
MINIMUM INPUT RATE: KW MM BTU/H
MAXIMUM SUPPLY PRESSURE: 1723 kPa (250 PSI)
MIN. SUPPLY PRESS. FOR MAX. OUTPUT: 89 kPa (13 PSI)
MIN. SUPPLY PRESS. FOR MIN. OUTPUT: 14 kPa (2 PSI)
RECOMMEND MANIFOID PRESSURE: 21-55 kPa (3-8 PSI)
MANIFOLD PRESSURE @ MAX. INPUT:6 9 kPa (10 PSI)
MANIFOLD PRESSURE @ MIN. INPUT:7 kPa (1 PSI)
CLEARANCE TO COMBUSTIBLES: 2M (6FT)
PERIMETER SERVICE CLEARANCE: 2M (6FT)
402-453-6912 OR 800-367-6208
HEATER COMPARTMENT MUST BE
120
34
FAN/HEATER UNIT
FOR USE IN CROP DRYING
WARNING: FOR OUTDOOR INSTALLATION ONLY
REFER TO DRYER MANUAL FOR INSTALLATION,
OPERATION, AND TROUBLESHOOTING INSTRUCTIONS.
MANUFACTURER:
TEL:
NECO
OMAHA, NEBRASKA, USA
0.9
18.0
5300
265
Figure 2. Dryer Rating Label — CSA
Intended for Non-Occupied Spaces Only
Fuel Type Natural Gas
For Industrial/Commercial Use
Max. Inlet Supply Pressure 30 PSI
Min. Ambient Temperature 0°F
Nebraska Engineering Co. Max. Plenum Temperature 250 °F
Omaha, Nebraska, USA Max. Temperature Rise
230°F
Clearance to Combustibles 6FT
Model D24240 Perimeter Service Clearance 6FT
Part / Serial No. DRYR-1234
Burner 1 Top
Voltage / Phase 575VAC / 3 Min. Input Rate per Burner 0.5 MM BTU/H
Frequency 60Hz Max. Input Rate per Burner 5.8 MM BTU/H
Control Voltage 120 VAC Burner Manifold Pressure at Min. Input 0.02 PSI
Full Load Amps 150 Burner Manifold Pressure at Max. Input 1.40 PSI
Largest Motor Amps
25
Min. Supply Pressure for Max. Input
5.0 PSI
SCCR
15 kA
Burner 2 & 3
Min. Input Rate per Burner 0.6 MM BTU/H
Max. Input Rate per Burner 8.0 MM BTU/H
Burner Manifold Pressure at Min. Input 0.00 PSI
Burner Manifold Pressure at Max. Input 0.93 PSI
Min. Supply Pressure for Max. Input
6.5 PSI
Pour utilisation dans des espaces non occupés uniquement type de carburant
Gaz Naturel
Pour utilisation industielle/commerciale Max. Inlet Supply Pressure
207 kPa
Min. Ambient Température -17.8°C
Nebraska Engineering Co. Max. Plenum Température 121 °C
Omaha, Nebraska, USA Max. Température Rise 110°C
Clearance to Combustibles 2M
Modèle D24240 Perimeter Service Clearance 2M
Numéro de p èce / série DRYR-1234
Burner 1 Top
Tension / Phase 575VAC / 3 Min. Input Rate per Burner 550 MJ/H
Fréquence 60Hz Max. Input Rate per Burner 6300 MJ/H
Tension de commande 120 VAC Burner Manifold Pressure at Min. Input 0.14 kPa
Amplis de pleine charge 150 Burner Manifold Pressure at Max. Input 9.65 kPa
Plus grands ampères du moteur 25 Min. Supply Pressure for Max. Input 34.5 kPa
Courant nominal de court-circu t 15 kA
Burner 2 & 3
Min. Input Rate per Burner 650 MJ/H
Max. Input Rate per Burner 8400 MJ/H
Burner Manifold Pressure at Min. Input 0.00 kPa
Burner Manifold Pressure at Max. Input 6.41 kPa
Min. Supply Pressure for Max. Input 44.8 kPa
Fan/Dryer Unit for Use in Crop Drying
WARNING For Outdoor Installation Only
Manufacturer
Wentilateur/Séchior pour le séchage des récoltes
AVERTISSEMENT Installer á l'extérieur seulement
Fabricant
CSA 3.8 visant les séchoirs
pour récoltes
Design Standard
CSA 3.8-2014 Crop Dryer
Figure 3. Dryer Rating Label —
Domestic
MODEL: D24210
PART / SERIAL NO: DRYR-1234
SUPPLY VOLTAGE:
PHASE: 3
FREQUENCY: 60 Hz
FULL LOAD AMPS:
LARGEST MOTOR AMP:
SCCR: 50 kA
CONTROL VOLTAGE: 120 VAC
WARNING:
CLOSED EXCEPT WHEN SERVIC NG.
FUEL TYPE: LP
MAX MUM SUPPLY PRESSURE: 250 PSI
MAX MUM INPUT RATE:
18MM BTU/H
MIN MUM INPUT RATE: 0 9MM BTU/H
M N. SUPPLY PRESSURE FOR MAX. OUTPUT: 13 PSI
M N. SUPPLY PRESSURE FOR M N. OUTPUT: 2 PSI
RECOMMEND MANIFO D PRESSURE: 3 - 8 PSI
MAN FOLD PRESSURE @ MAX. NPUT: 10 PSI
MAN FOLD PRESSURE @ MIN. NPUT: 1 PSI
CLEARANCE TO COMBUST BLES: 6FT (2M)
PERIMETER SERVICE CLEARANCE: 6FT (2M)
FAN/HEATER UNIT
FOR USE IN CROP DRYING
WARN NG: FOR OUTDOOR INSTALLATION ONLY
REFER TO DRYER MANUAL FOR NSTALLATION,
OPERATION, AND TROUBLESHOOTING NSTRUCTIONS.
MANUFACTURER:
TEL:
NEBRASKA ENGINEERING CO.
OMAHA, NEBRASKA, USA
402-453-6912 OR 800-367-6208
HEATER COMPARTMENT MUST BE
210 / 190
59.4 / 54
208 / 230 VAC
1. GENERAL DESIGN CRITERIA CONTINUOUS MIXED-FLOW GRAIN DRYER – GRAIN DRYER

7713402 R0 7
2. Parts of the Dryer
Important
Understanding the terms used to identify the various components of a dryer system will make
the instructions in this manual clearer and easier to follow.
Front of Dryer
Figure 4. Front of Dryer (from Fuel Train Side)
MAIN
CONTROL
BOX
CATWALK
BLOWER
HOUSING
FUEL TRAIN
PLATFORM
BURNER
CONTROL
DRYER
SECTION
(Each has a
blower system)
BOX
UNLOAD MOTOR
(Auger unload shown)
SAFETY
CAGE
DRYER
TIER
LADDER
SYSTEM
LEVEL OF
PLENUM
DIVIDER
FLOOR
OPTIONAL
COOLING
TIERS
DRYER RATING LABEL
(Includes Serial Number)
CONTINUOUS MIXED-FLOW GRAIN DRYER – GRAIN DRYER 2. PARTS OF THE DRYER

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Figure 5. Front of Dryer (from Blower Belt Shield Side)
METERING ROLL
DRIVE CHAINS
METERING
ROLL
DC MOTOR
UNLOAD DRIVE GUARD
(Shown in Open Position)
COOLING FLAP HANDLE
& LOCK (Optional)
TRANSITION
HOUSING
BELT
SHIELD
BURNER
HOUSING
UNLOAD DRIVE
METERING
ROLLS
BLOWER
HOUSING
2. PARTS OF THE DRYER CONTINUOUS MIXED-FLOW GRAIN DRYER – GRAIN DRYER

7713402 R0 9
Rear of Dryer
Figure 6. Rear of Dryer (from Below)
GEAR BOX FOR
REAR CROSS
AUGER
COMMANDER
STYLE
DISCHARGE
SYSTEM SEE
DETAILS IN
COMMANDER
CONTROL
COMPONENTS
REAR CROSS
AUGER
CLEAN-OUT DOORS
(SHOWN OPEN)
NOTE: The Plenum Door is at the rear of dryer and allows access into the center plenum area. Each dryer
section ABOVE THE PLENUM DOOR is separated by a Divider Floor with one Divider Door for plenum access.
Divider Doors should always be closed during operation. Optional Cooling Floor(s) & Doors serve a totally
different purpose - See Grain Cooling System.
DISCHARGE
AUGERS
COOLING
FLOOR(S)
(OPTIONAL)
SLIDING
DIVIDER
DOOR
(ONE PER
DIVIDER
FLOOR)
DRIVE
CHAIN
GUARD
DO
NOT
OPEN
WHEN
IN USE
OR
UNTIL
COOL !!
PLENUM
DOOR
CONTINUOUS MIXED-FLOW GRAIN DRYER – GRAIN DRYER 2. PARTS OF THE DRYER

10 7713402 R0
Catwalk Positions
Figure 7. Topside Filling Options
ROOF
WITH
LEVEL AUGER
ROOF
WITH
GRAVITY FILL
Figure 8. Catwalk Positions
Front of Dryer
(blower side)
Rear of Dryer
Multi-Blower Dryer
Single-Blower Dryer
(left, center, right, right extended discharge)
Single-Blower Dryer
(left extended discharge)
2. PARTS OF THE DRYER CONTINUOUS MIXED-FLOW GRAIN DRYER – GRAIN DRYER

7713402 R0 11
3. Fuel Supply Components
Explosion Hazard.
• Know where the main shut-off is.
• Make sure all required personnel are trained.
• Observe all safety rules when working with the fuel system
• Use lockout/tagout.
Note
The layout of fuel train components varies for different dryer types. Although your fuel
components may not exactly match what is shown in the following diagrams, the general
function of each identified component remains the same.
Liquid Propane (LP)
Overview Layout
Each dryer section with a burner has the following fuel system components:
• Inlet section
• Vaporizer section
• Regulator section
• Control loop section
CONTINUOUS MIXED-FLOW GRAIN DRYER – GRAIN DRYER 3. FUEL SUPPLY
COMPONENTS

12 7713402 R0
Figure 9. LP Overview Layout
REGULATOR
SECTION
VAPOR GAS
LINE
LIQUID GAS
LINE
VAPORIZER
SECTION
SECTION TO
SECTION
TRANSFER
FUEL
FUEL TO
PILOT
FUEL TO
BURNER
CONTROL
LOOP
SECTION
VERTICAL
TRAP FOR
VAPOR LINE
CLEANING
ACCESS
FUEL
SHUTOFF
INLET
SECTION
VENT PIPE
ASSEMBLY
(CSA ONLY)
3. FUEL SUPPLY COMPONENTS CONTINUOUS MIXED-FLOW GRAIN DRYER – GRAIN DRYER

7713402 R0 13
LP Fuel - Inlet Section
Figure 10. LP Fuel — Inlet Section
CONNECTS TO
THE LIQUID
LINE OF THE
VAPORIZER
SECTION
6
5
4
SUPPLY OF
LIQUID FUEL TO THE
DRYER SECTION
ABOVE
3
1
FUEL
SHUTOFF
2
7
LP SUPPLY TANK
Item # in
Diagram Component Description
1Fuel supply inlet elbow The main fuel supply connects here on the bottom dryer section. Note that
the top dryer section also uses an elbow.
2 Fuel shut–off valve The fuel supply for ALL dryer sections can be shut off here.
3Fuel supply “T” and transfer line All middle dryer sections connect here. The upper-most dryer section has an
elbow at this location.
4 Fuel strainer The fuel strainer traps foreign debris that may be in the liquid fuel line.
5Hydrostatic relief valve The hydrostatic relief valve relieves the hydrostatic pressure that may
develop in sections of liquid piping between closed shutoff valves.
6Liquid solenoid valve This is an electrically actuated valve to turn fuel ON or OFF.
7Vent pipe assembly (CSA Only) This piping carries away any liquid discharged from hydrostatic relief valves.
CONTINUOUS MIXED-FLOW GRAIN DRYER – GRAIN DRYER 3. FUEL SUPPLY
COMPONENTS

14 7713402 R0
LP Fuel — Vaporizer Section
Figure 11. LP Fuel — Vaporizer Section
7
CONNECTS TO
THE REGULATOR
SECTION
CONNECTS TO THE
INLET SECTION
VAPOR
LINE
LIQUID
PROPANE LINE
Item # in
Diagram Component Description
7Vaporizer coils Finned tubes that vaporize the liquid propane. These are located in the dryer
plenum.
3. FUEL SUPPLY COMPONENTS CONTINUOUS MIXED-FLOW GRAIN DRYER – GRAIN DRYER

7713402 R0 15
LP Fuel — Regulator Section
Figure 12. LP Fuel — Regulator Section
VAPOR
LINE
CONNECTS TO THE
VAPORIZER SECTION
VERTICAL TRAP FOR
VAPOR LINE CLEANING ACCESS
CONNECTS TO THE
CONTROL LOOP SECTION
9
8
10
Item # in
Diagram Component Description
8Pressure regulator Reduces fuel pressure to the downstream sections of the fuel system.
9Pressure gauge Indicates fuel pressure at the regulator output.
10 Overpressure relief valve (CSA Only) Vents excessive vapor pressure that may build up downstream of the
regulator.
CONTINUOUS MIXED-FLOW GRAIN DRYER – GRAIN DRYER 3. FUEL SUPPLY
COMPONENTS

16 7713402 R0
LP Fuel - Control Loop Section
Figure 13. LP Fuel — Control Loop Section
14
13
11
12
16
19
17
15
18
CONNECTS TO
THE REGULATOR
SECTION
CONNECTS TO
THE BURNER
Item # in
Diagram Component Description
11 Main valve 1 Electrically actuated valve to turn the fuel ON or OFF to the pilot and burner
12 Pilot shut-off valve Manual valve for shutting off fuel to the pilot
13 Pilot pressure regulator Further reduces fuel pressure to the pilot solenoid valve
14 Pilot solenoid valve Electrically actuated valve to turn the fuel ON or OFF to the pilot
15 Pilot line Supplies fuel to the pilot
16 Main valve 2 Electrically actuated valve to turn fuel ON or OFF to the burner
17 Electronic modulating motor Receives signal from the temperature controller. Moves a linkage attached
to the butterfly valve to modulate the fuel flow to the burner.
18 Butterfly valve Controls flow of fuel to the burner to maintain the desired temperature.
19 Burner shut-off valve Manually operated to shut off fuel to the burner
3. FUEL SUPPLY COMPONENTS CONTINUOUS MIXED-FLOW GRAIN DRYER – GRAIN DRYER

7713402 R0 17
Natural Gas (NG)
Figure 14. NG Fuel Layout
FUEL SUPPLY
TO DRYER
SECTION ABOVE
3
5
6
4
9
11
12
CONNECTS TO
THE BURNER
10
8
FUEL
SHUT OFF
2
NG
FUEL SUP
PLY
7
13
14
1
Item # in
Diagram Component Description
1Fuel supply inlet The main fuel supply connects at this location.
2 Fuel shut–off valve The fuel supply for ALL dryer sections can be shut off here.
3Pressure regulator Reduces fuel pressure to the downstream sections of the fuel system.
4 Main valve 1 Electrically actuated valve to turn fuel ON or OFF to the pilot and burner.
5Pressure gauge Indicates fuel pressure at the regulator output.
6 Pilot shut-off valve Manual valve for shutting off fuel to the pilot.
7 Pilot solenoid valve Electrically actuated valve to turn the fuel ON or OFF to the pilot.
8 Pilot line Supplies fuel to the pilot.
9 Main valve 2 Electrically actuated valve to turn the fuel ON or OFF to the burner.
10 Electronic modulating motor Receives signal from the temperature controller. Moves a linkage attached
to the butterfly valve to modulate the fuel flow to the burner.
11 Butterfly valve Controls flow of fuel to the burner to maintain the desired temperature.
12 Burner shut-off valve Manually operated to shut off fuel to the burner
13 Pilot Pressure Regulator (CSA Only) Further reduces fuel pressure to the pilot solenoid valve
14 Overpressure relief valve Vents excessive pressure that may build up downstream of the regulator
CONTINUOUS MIXED-FLOW GRAIN DRYER – GRAIN DRYER 3. FUEL SUPPLY
COMPONENTS

18 7713402 R0
4. Burner Control and
Temperature Control
Electrocution Hazard
• Know where the main shut-off is.
• Make sure all required personnel are trained.
• Observe all safety rules when working with the electrical system
• Use lockout/tagout.
Burner Control Box Components
The Burner Box contains five primary components, which work together to control the combustion
inside the dryer. They are:
• The Air Switch checks for airflow across the burner.
• The Spark Igniter sends voltage to the spark plug to light the pilot.
• The KS45 Temperature Controller sends and receives temperature data.
• The TB45 High Temperature Limit Switch allows manual control of the high temperature setting
by adjustment of the knob. If the high temperature limit is exceeded, the dryer shuts down
immediately with NO cool-down period.
• The Honeywell Flame Safety Relay checks functions related to combustion:
– Absence of pilot flame
– Adequate air flow
– Presence of burner flame
– High Temperature Limit
– Controls outputs for ignition, inlet valves, pilot valve, main valve, and burner reset.
4. BURNER CONTROL AND TEMPERATURE
CONTROL
CONTINUOUS MIXED-FLOW GRAIN DRYER – GRAIN DRYER

20 7713402 R0
Burner Box Cable(s)
• The grey cable entering the left side of the
burner box(es) from each modulating motor
is pre-wired at NECO. This cable signals the
modulating motor to adjust the butterfly
valve, controlling the flow of fuel.
• The yellow burner cable(s) and the grey
communication cable(s) are used between
each burner box and also from the lowest
burner box to the main control box.
– The yellow cable connects to the T-
connector on the top burner box, as does
the yellow splitter cable for the fill and
low switches.
– The grey cable plugs directly into the top
burner box, while the T-connector is used
for lower burner boxes when present.
Figure 16. Burner Box Cable Connections
GREY
CABLE
YELLOW
BURNER CABLE
TEE
GREY
COMMUNICATIONS
CABLE TEE
COMMUNICATIONS
YELLOW
BURNER
CABLE
4. BURNER CONTROL AND TEMPERATURE
CONTROL
CONTINUOUS MIXED-FLOW GRAIN DRYER – GRAIN DRYER
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