Dri-Air Industries ARID-X10D User manual

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ARID-X10D FLOOR
MOUNT DRYER
OPERATING MANUAL

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DRI-AIR INDUSTRIES, INC.
16 THOMPSON ROAD
P.O. BOX 1020
EAST WINDSOR, CT 06088-1020
Tel. [phone]
FAX [phone]
Internet http://www.dri-air.com
e-mail: [e-mail]

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CONTENTS
DRYER DESCRIPTION Pg. 4
AIR FLOW SCHEMATIC Pg. 9
DRYER CYCLE DIAGRAM Pg.10
INSTALLATION PROCEDURES
FACILITY REQUIREMENTS Pg. 11
HOPPER CONNECTION Pg. 11
ELECTRICAL CONNECTION Pg. 12
POST-INSTALLATION INSPECTION Pg. 13
DRYER OPERATION
START-UP PROCEDURES Pg. 14
ALARMS Pg. 15
ROUTINE OPERATION Pg. 16
TROUBLESHOOTING
BASIC TROUBLESHOOTING Pg.18
DETAILED TROUBLESHOOTING Pg.19
ZONE VALVE TROUBLESHOOTING Pg.21
CONTROLS TROUBLESHOOTING Pg.21
PARTS LIST Pg. 26

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DRYER
DESCRIPTION
The ARID-X10D dryer is a fully portable dryer
designed to dry hygroscopic resins quickly and
efficiently. It is ideal for insert molders and
laboratory applications, or where production
rates are 10 lbs. /hr. or less.
The ARID-X10D dryer is available in 110 volt and
230 volt models. The power requirements for the
110 volt model are a voltage range of 105-130v
AC at 50/60 Hz., single phase with a 20 amp current
rating and the 230 volt model requires a range 220-
250v AC at 50/60 Hz., single phase with a 10 amp
current rating.
Dryer process operating temperatures are 140
degrees F (minimum) to 350 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.
Regeneration Cycle
The ARID-X10D utilizes our HP4-X dual
desiccant bed design that provides a constant
supply of dry air to the material hopper.
While one bed is removing moisture from the
process air stream, the other bed is being
regenerated. The entire process is controlled by
either an ELC factory programmed or our
advanced dry-control microprocessor. When a
regenerated bed completes this cycle, the zone
valve switches the air stream and the newly
regenerated bed is now used for drying the
process air. The saturated bed is then regenerated,
repeating the cycle. Please see the Regeneration
Cycle Diagram on page 8.
The airflow design of the ARID-X/HP4-X dryers
makes the regeneration cycle more efficient

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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. This cycle is depicted in the
schematic on page 8.
HP4-X Design
Our patented HP4-X design incorporates 4
desiccant beds where two are stacked, one over
the other in each tower. This nearly doubles the
amount of desiccant available for drying the
process air stream, and because of the tower
design, the dryer is able to regenerate the
desiccant in the same time as our ARID-X
series. This allows the dryer to operate in very
high humidity conditions without affecting the
process air dew point. In fact, this design
produces dew point levels of –40 to -80 C for
faster more complete drying of your material.
Please see Airflow diagram on page 7.
Material Hopper Requirements
The Arid-X10 dryer can be used with any material
hopper that is designed to allow proper air flow.
Hoppers that are equipped with a material
spreader cone and diffuser basket will provide the
best performance. To obtain optimal drying
performance, we recommend thatyou utilize our
uniquely designed material hoppers.
Dri-Air’s “all stainless” hopper design utilizes a
stainless steel inner shell surrounded by a stainless

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steel jacketed insulation layer. The easily
removable stainless steel spreader cone/ diffuser
basket assembly promotes proper material flow to
ensure that the material is dried efficiently and no
undried material is left at the hopper bottom that
needs to be fed out prior to operating. You must
ensure that your hopper is kept filled, to ensure
that you have sufficient time to dry the material.

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DRYER DESCRIPTION
(Cont’d)
Dryer Controls
The Arid-X10 dryer is supplied with a factory
programmed ELC Control Module and a Digital
TemperatureController or our advanced dryer
controls (ADC) microprocessor.
ELC Control Module
The ELC Control Module controls the
regeneration cycle described in the previous
section. It has been factory programmed and
does not require any additional input by the
operator. The module will automatically monitor
and control the dryer’s operating parameters by
timing the regeneration cycle as well as
monitoring and controlling the regeneration
heaters and dryer alarms.
Digital Temperature Controller
The Digital Controller works in tandem with
the ELC Control module to monitor and
control the process air temperature. The
controller’s touch pad allows the operator to
input the dryer’s process air temperature
settings and alarmpoints. These are explained
in more detail later in this manual.

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DRYER DESCRIPTION
(Cont’d)
ADC ADVANCED DRYER CONTROL
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.
FEATURES:
Easy setting of process temperature *
Blower rotation detection
Monitoring of heater current to check
heater and relay conditions
Automatic learn mode for heater currents
at local voltage
Day and time indication
Set start and stop times daily
Adjustable high temperature alarm *
Adjustable dew point alarm
Battery back-up for time retention
Selection of °F or °C
Display can be remotely mounted

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Open thermocouple detection
Process temperature setback to prevent
over drying
Closed loop control of valve position
Actual fault indication- no codes to look up
Dew point readout down to –45 degrees C
Temperature calibration for ISO 9000
RS 232 or RS 485 ports for remote readout
or control
Optional Ethernet output
Library of resins automatically sets
process temperature
Event history for easy trouble shooting
Internal temperature’s display
Auto restart with power interruption
Dri-Air Electric Rotary Zone Valve
The Arid-X10 utilizes our exclusive electric
rotary valve technology, which helps makethis
dryer truly portable and low maintenance. As
the valve does not need compressed air to
operate, it is far more reliable than valves that
depend on clean compressed air at a constant
pressure.
The valve is designed to be practically
maintenance free, as the seals are self-seating
and are designed to provide years of trouble free
service. The electric controls are easily
accessible for trouble-shooting, and are
equipped with lights to indicate the zone
position of the valve.

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AIR FLOW SCHEMATIC FOR ARID-X 10 DRYER
VORTEX
BLOWER
FILTER
4-WAY ZONE
VALVE
VENT
UPPER
REGENERATION
HEATERS
LOWER
REGENERATION
HEATERS
FROM
MATERIAL
HOPPER
SAFETY THERMAL
TO HOPPER
PROCESS HEATER

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D
r
y
e
r
C
yc
l
e
Diagram
D
es
i
can
t
B
eds

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INSTALLATION
PROCEDURE
CAUTION: Prior to installing the dryer a qualified
electrician should ensure that the facility power supply is
compatible with the unit. Any wiring required for
installation must be performed by a qualified electrician.
Installation Requirements
Electrical
The power requirements for the unit are detailed
on page 4 of this manual. The unit is supplied with
power connector cord and should be installed as
directed below. All 230 volt models require a
minimum operating voltage of 220v AC tooperate
properly.
Facility Location
The unit is suitable for use in industrial and
laboratory environments. The location should be
adequately ventilated, with no flammable vapors
or gasses present. The unit must be positioned to
allow the operator to view the control panel and
access the controls. Do not locate the dryer in an
enclosed area. Allow at least 3 feet (1 meter) of
clearance around each side for proper ventilation
and heat dissipation. If the unit is to be installed on
a bench or stand, be sure they are adequately sized
to accommodate the dryer’s weight (72 lbs.
/32Kg).
Hopper Connection
Each Arid-X10 dryer is supplied with a 6 foot
Process Air Hose/Thermocouple Assembly and a
6 foot Return Air Hose. To install the dryer, connect
the Process Air Hose/Thermocouple Assembly to
the material hopper by placing the end of thehose
with the thermocouple probe over the material
hopper inlet port (usually on the bottom of the
hopper) and the end of the hose with the
thermocouple plug over the dryer’s Process Air
Outlet Port located on the top of the dryer. Connect
the Return Air Hose to the outlet port on the material
hopper (usually on top/cover of hopper) and to the
dryer’s Process Inlet Port on top of the Filter
Canister. Clamp each hose tightly with the hose

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INSTALLATION
PROCEDURE
(Cont’d)
clamps provided with the dryer. Plug the
thermocouple connector on the Process Air Hose
assembly into the receptacle located on the side of
the dryer. See Dryer Configuration drawing (84430)
in Appendix.
Heat Exchanger Connections
This option should be used when drying materials
over the 250ºf (120ºC) or under 150ºf (65ºC) level
on a continuous basis. If the return temperature is
too hot coming back into the desiccant bed, the
desiccant will not be as effective in removing
moisture. The water after-cooler is located on the
dryer return airline and utilizes water from a chiller
or tap water. Two ¼” n.p.t. taps are required for
installation.
Electrical Connection
The Arid-X10 dryer is available in 110 or 220 volt,
single-phase models. The 110 volt model is
supplied with a pre-assembled power cord with a
grounded three prong male plug already attached,
while the 220 volt model requires the user to have
a qualified electrician attach an appropriately
grounded male plug, suitably configured to the
facility’s power supplyoutlet.
220 volt Connection - USA/Canada
Connect WHITE and BLACK wires to power leads
on plug and the GREEN wire to the ground lead.
220 volt Connection - Europe
Connect BROWN and BLUE wires to the power
leads on plug and the GREEN/YELLOW wire to
the ground lead.
To connect the dryer to electrical power, plug in
the cord to any grounded power source. With all
units being single phase, blower rotation will be
correct.
Water out
flow
Water in flow

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CAUTION: Do not operate this dryer using an
ungrounded power receptacle.
Post-Installation Inspection
Prior to starting the dryer, inspect the unit to ensure
the following:
1. All hose couplings are tight and secure.
2. Hoses are not crushed or obstructed.
3. Process Air Thermocouple is connected.
4. Hopper is clean and ports are clear

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DRYER OPERATION
STARTUP PROCEDURE
CAUTION: Only personnel qualified to operate
this dryer should start and run this dryer.
Dryer Controls
Main Power - The rocker switch located on the
left side of the dryer face panel controls all power
to the dryer. It functions as the main circuit
breaker for the dryer and in emergencies, will cut
all power to the unit.
ECC Dryer Start-up
To initiate dryer start-up, press the rocker switch
on the unit’s face panel. The Rocker Switch
should illuminate; indicating power is suppliedto
the unit. The dryer is now operating; follow the
instructions below to set the process air
temperature or to shut the dryer off.
1. Rocker Switch POWER ON light
indicates there is power to the controls,
heaters, valve and blower.
2. The dryer is now ready for setting the
Process Air temperature. Follow
instructions in next section.
3. The AMBER TEMPERATURE ALARM
light will illuminate if an alarm condition arises.
Further diagnostics required. See sections on
Alarms and Trouble-shooting.
4. To stop dryer press the Rocker Switch to
the OFF position.
To Set Process Air Temperature:
Using the Digital Temperature Controller:
TEMP
CONTROLLER
1. Press SEL button on the controller to
enable the red Temperature Setdisplay
(labeled SV) to be altered.

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DIGITAL
CONTROLLER
ALARMS
2. Press the up arrow key to
increase the set point or the down arrow
key to decrease the setting until the
desired process air temperature set
point is displayed.
3. Press the SEL key again to enter the
new temperature setting.
CAUTION: Do not operate this dryer below 140
degrees F (60 deg. C) or above 350 degrees F
(177 deg. C).
The High Temp Alarm condition discussed
below will initiate a “Dryer Shutdown” that cuts
power to the blower, digital controller and ELC
output relays. See Trouble-Shooting section of
this manual
Process Air High Temperature Alarm
The ELC/Digital Control system is
preprogrammed with alarm set points thatwill
shut the dryer down and activate the
TEMPERATURE ALARM light on the dryer
control panel.
The high temperature alarm will be activated if
the actual process air temperature exceeds the set
temperature by 50 degrees (default). When this
condition occurs, the dryer will shutdown and
the HIGH TEMP ALARM light will illuminate.
The high temperature limit (50 degrees) can be
changed through the temperature controller if
needed. Please refer to the Omron temperature
control manual.
Thermocouple Failure Alarm
If a failure is detected with the Process Air
Thermocouple, the upper Process Air
Temperature display (labeled PV) on theDigital
Controller will flash and display 0000. This
alarm will be displayed if the thermocouple is
not connected or is faulty.

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ROUTINE OPERATION &
MAINTENANCE
PROCEDURES
When operating this dryer please follow the
procedures detailed below:
Routine Operation
The dryer should be operated in a dry
environment at ambient temperatures between 50
and 110 degrees F (10-44 deg. C). The unit
should be situated so that the air hoses are not
crimped or restricted after connection with the
material hopper and the controls are easily
accessible to the operator.
When moving the dryer allows the dryer to cool
completely before handling. Recheck the hose
and thermocouple connections to ensure that they
are tight.
To shut the dryer down, press the OFF button on
the Control Panel and press the rocker switch to
the off position. Always unplug the unit when
not in operation.
Emergency Shutdown
In the event that a condition should arise that
requires the operator to immediately halt the
dryer’s operation, the operator can press the
rocker switch to the off position and the unit will
shut down completely. Remove the power plug
from the facility outlet to cut all power from the
dryer.
Hopper Maintenance
1. Always clean hopper interior, air inlet port
and diffuser basket prior to adding or
changing materials.
2. Never over-fill the hopper. Material should
not obstruct the exhaust port at the top ofthe
hopper.

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ROUTINE OPERATION &
MAINTENANCE
PROCEDURES
Cont’d
Filter maintenance
1. Open filter canister and clean filter element
on a daily basis using compressed air.
2. Change filter cartridge every 6 months
(Sooner if process materials aredusty.).
Never operate dryer without filter element installed.
Dryer Cleaning
Always unplug the dryer before cleaning.
The dryer is supplied with a surface coating that
is easily cleaned and maintained bysimply
wiping the dryer with a moistened cloth or rag.
Never clean the dryer with solvents or corrosive
liquids. Always allow the dryer to cool
completely before cleaning.
Filter
8