Dri-Air Industries AHM 2-4 Manuel utilisateur
1
Contents
HM DRYERS...................................................................................................................2
INSTALLATION PROCEDURE.......................................................................................5
QUICK START-UP GUIDE..............................................................................................5
DRYER OPERATION TROUBLE SHOOTING................................................................7
PART LIST......................................................................................................................9
ADVANCED DRYER CONTROLS GUIDE....................................................................11
MAIN OPERATING SCREEN: ......................................................................................11
MENU INSTRUCTIONS:...............................................................................................11
TO START DRYER:......................................................................................................12
TO SET TEMPERATURE:............................................................................................12
MAIN MENU SELECTIONS..........................................................................................13
MAIN MENU SELECTIONS..........................................................................................14
MENU DEFINITIONS:...................................................................................................17
OTHER FEATURES:.....................................................................................................19
SETTINGS:...................................................................................................................20
ERROR MESSAGES:...................................................................................................21
TEMPERATURE SETBACK THEORY..........................................................................22
Hopper Ban
ADC ADVANCED DRYER CONTROL –AHM 2-4
OPERATING MANUAL
2
HM DRYERS
FEATURES:
The HM series dryers are a fully assembled dryer and hopper combination where the dryer is
mounted on the hopper to be positioned on top of molding machines. They are ideal where floor
space is not available and material changes are infrequent. The HM dryer series utilize the
ARID-X dual bed design that provides a constant supply of dry air to the material hopper.
Arid-X Two Bed Design
While one bed is removing moisture from the process air the other is regenerating by heating
the desiccant to a high temperature. Once the regenerated bed cools down, the Zone Valve
switches the airflow, and the newly regenerated bed is used to desiccate the process air stream.
The saturated bed is now regenerated in the same manner, completing the regeneration cycle
The airflow design of the ARID-X dryers makes the regeneration cycle more efficient because
we utilize a small amount of the desiccated process air rather than ambient air to regenerate the
desiccant bed. This reduces the impact of the high moisture content of the ambient air, which
would contaminate the desiccant bed, and allows the dryer to attain a lower dew point. Please
see the Air Flow Schematic on Page 4.
Dryer process operating temperatures are 140 degrees F (minimum) to 325 degrees F
(maximum) with an accuracy of +/- 3 degrees. When the drying temperature is 275 degrees F
or higher, it is necessary to install a water-cooled heat exchanger on the return hose of the dryer
to ensure maximum dryer efficiency. If you do not have a heat exchanger and will be operating
275 degrees F or higher, please contact the factory for heat exchanger pricing.
Hopper Design
Dri-Air’s “all stainless” hopper design utilizes a stainless-steel inner shell surrounded by a
stainless-steel jacketed insulation layer. The easily removable stainless steel spreader cone
promotes proper material flow to ensure that the material is dried efficiently and no dried
material is left at the hopper bottom that needs to be fed out prior to operating. You must ensure
that your hopper is adequately sized for your usage rate and is kept filled, to ensure that you
have sufficient time to dry the material.
3
ADC Advanced Dryer Controls
The ARID-X series can be supplied with the Advanced Dryer Control (ADC).
The new ADC (Advanced Dryer Control) was introduced for optimum operation of the dryer and
is as user friendly as possible. The easy-to-see alphanumeric display indicates all operating
parameters and leads the operator through a menu driven program for all settings and
information. All fault conditions are shown on the display in a format that is easy to understand.
As with earlier designs, the ADC is driven by thermocouples strategically located in the towers,
hoses to the hoppers, and other locations to properly control the operation of the dryer. Other
inputs monitor the performance of the dryer for safe and efficient operation.
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5
INSTALLATION PROCEDURE
Electrical Connection:
Open electrical access door on the front of the machine by turning the disconnect off and
turning the lower clamping screw 1/2 turn counterclockwise. Locate the disconnect by following
the operating handle down to the electrical panel.
Insert the incoming power cable or conduit through the hole provided on the side of the
machine. Wire incoming power to the top of the disconnect as shownin the diagramsbelow.
« use approved
wire and fastening
means «
3 PHASE DRYER INSTALLATION CHECK FOR CORRECT MOTOR ROTATION
BEFORE RUNNING DRYER
To check motor rotation.......
Turn on the power to the dryer and press the ON/ START touch pad and then immediately press
the OFF/STOP touch pad. Observe the cooling fan on the top of the blower motor and verify the
fan is turning clockwise. If the motoris not turning clockwise, switch any two adjacent supply
wires.
QUICK START-UP GUIDE
Operating this unit is very simple. Once the dryer is connected to the facility power supply, the
unit can be started by turning the disconnect handle located in the upper right-hand corner of
the electrical panel enclosure to the ON position and pressing the POWER button on the
Control Panel Key Pad. To shut the dryer off, simply push the POWER button on the Control
Panel Key Pad.
Setting the process air temperature is done using the Digital Controller.
For a more detailed explanation, please refer to the ADC control section later in this manual.
6
Temperature:
Set the process temperature by either pressing the “TEMP SET” button or “MENU” button.
High Temp Alarm Delta:
Press the “MENU” button and then arrow down to the ALARM MENU. Press enter to access
setting. Enter a new delta using the keypad and press ENTER. Remember this setting is a delta
above the set temperature and not an actual temperature.
Temperature Setback:
Going to the “SETBACK MENU” and pressing enter can actuate the temperature setback
feature. The display will indicate how to turn on or off this feature. The setback delta is factory
set for 30 degrees F based on field experience. If this value needs to be changed, go to the
“SETBACK MENU” and arrow down to SETBACK DELTA. A new value can then be entered. All
other variables are located in the FACTORY SETTINGS and will require assistance by our
servicemen to make any changes.
Selection Of Degrees F or C:
This setting is located in the menu section “SYSTEM SETUP”.
Seven-Day Timer:
Select the “SEVEN-DAY TIMER” menu. Press enter to access the days of the week and
ENTER again to set the times. Only one start and stop time per day is allowed. All times are in
Military time. See the section on menu selection for more detail.
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DRYER OPERATION TROUBLE SHOOTING
The Advanced Dryer Controls were designed for quick diagnosis of problems. .The following
steps should be done before proceeding with other diagnostic steps. Alarm codes that occur on
the ADC controls are further detailed in the controls section of this manual.
Check the Power Circuit:
1. Incoming fuses or circuit breaker
2. Check secondary fuses or circuit breakers.
3. Is power supplied to the unit?
4. Check heater continuity using a volt ohmmeter.
Compressed Air:
For those models that require compressed air.
5. Is compressed air connected with at least 60 PSI
6. Check water separator and drain if necessary
7. Pressure gage should read 60 PSI
Air Flow Circuit:
8. Ensure Zone Valve position is correct. Remove the hoses from the top of the
desiccant towers and compare the airflow to that in the provided airflow diagram in this
manual.
9. Make sure that all hoses are connected, not crushed, and free from obstructions.
10. Inspect filter and make sure cover is tight and the filter is clean and in good condition.
Control Circuit:
11. Using the ADC motherboard indicator lights as a guide for the dryer regeneration
cycle, check that all inputs/outputs are proper for the part of the regeneration cycle
that the machine is in.
12. Monitor the ADC output lights to ensure the corresponding LED on the power solid
state relay is illuminated and there is an output voltage to the heater.
Operating Conditions:
13. Check the process temperature. It should not be set below 140° F (60° C) because
the unit will go into high temp alarm.
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If the temp exceeds the set point check the following:
1. Remove the hose from the top of the hopper to check air flow. There should be air flow
out of the hopper with a suction on the hose. If there is little or no flow, check the inlet
hose.
2. Inspect the filter to make sure that it is clean and not affecting the air flow.
3. Check to see if one of the solid-state relays has failed on. Using an ammeter or
voltmeter on the output to the heater, see if there is power when the LED is not lit
which will indicate a failed relay.
4. Check the valve position.
The Dri-Air valve is designed to provide very little flow restriction and no leakage. It
incorporates high temperature spool for years of trouble-free service. The electrical
controls are built into the end of the valve for long lasting performance.
DO NOT PUT FINGERS INTO VALVE WITH POWER ON
Check all electrical connections to make sure they are tight.
Contact factory with the serial number of the dryer for a replacement valve.
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PART LIST
Voltage
208V
230V
400V
480V
575V
Cone
83342
83373
83982
83374
84235
Process
82343
82343
84204
82319
84065
Description
Part #
Amount
Valve Zone STC 24V Assembly
Smart touch
89167
1
Blower 25CFM 3PH
86867
1
Sensor RH ADC Control for
84936 RH Board Assembly
85374
1
Gasket 6” for 18-35 towers
81028
4
Filter Element 25-35 CFM
Dryers
81055
1
Thermocouple 1/8” x 6” Female
Type J
82174
4
Switch Pressure Ultra Low 1.5”
for ADC Blower Rotation
86155
1
Thermocouple 1/8” x 3” Female
Type J
87361
1
10
Description
Part #
Amount
Contactor 12A 600V 4P 24VDC
LS
85355
1
Overload .4-.63 Amp
Overload .63-1 Amp
–LS Interchangeable w/ Carlo
Gavazzi
85358
85359
1
Relay SS 40A 480V 2P 15-32
VDC
85364
1
Switch Disconnect 40A (Handle,
Shaft, Switch)
85365
1
Relay 1P DT 24VDC 6A card
wago
89384
1
ADC Display Board
84930-1
1
ADC Keypad Membrane
85197
1
Mother Board ADC Rev3A
ADC/HMI
85584-1
1
Power Supply 24VDC 30W STC
89259
1
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