Dri-Air APD 1-9, HPD 1-9 Operating Manual

DRI-AIR INDUSTRIES, INC.

APD 1-9 HPD 1-9

OPERATING MANUAL

OPERA TING MANUAL - APD 1-9, HPD 1-9 POR TABLE DRYERS
Revision 10/8/02

Page 1

DRI-AIR INDUSTRIES, INC.

Page 2

DRI-AIR INDUSTRIES, INC.

16 THOMPSON ROAD
P.O. BOX 1020
EAST WINDSOR, CT 06088­1020

Tel. [phone]
FAX [phone]

Internet http://www.dri-air.com
e-mail: [e-mail]

OPERA TING MANUAL - APD 1-9, HPD 1-9 POR TABLE DRYERS
Revision 10/8/02

DRI-AIR INDUSTRIES, INC.

CONTENTS

DRYER OPERA TION/FEATURES---------------------------4
AIR FLOW SCHEMA TIC FOR APD 1-9 DRYERS-------6
AIR FLOW SCHEMA TIC FOR HPD 1-9 DRYERS ------ 7

(HIGH PERFORMANCE MODEL SHOW)

DRYER CYCLE DIAGRAM------------------------------------8
PLC ST ANDARD ELECTRICS -------------------------------9
INST ALLATION PROCEDURE ----------------------------- 10

Electrical Connection ------------------------------------- 10
Check for correct motor rotation ----------------------- 10
Compressed Air Connection---------------------------- 10

START-UP PROCEDURE ----------------------------------- 1 1

Standard Electrics----------------------------------------- 11
To Set Temperature: -------------------------------------- 11
Microprocessor Control ---------------------------------- 12

CLOSED LOOP LOADING SYSTEM --------------------- 13

Receiver Installation -------------------------------------- 13
Vacuum Check --------------------------------------------- 14
Adjustment of Sensors ----------------------------------- 14
Material Flow Adjustment-------------------------------- 15

BASIC TROUBLE SHOOTING for
CLOSED LOOP LOADING SYSTEM --------------------- 16

Material will not feed. ------------------------------------- 16

CLL MAINTENANCE------------------------------------------ 16

Daily Maintenance:---------------------------------------- 16

Monthly Maintenance: ------------------------------------ 16
DRYER OPERATION-TROUBLE SHOOTING --------- 17
DRYER OPERA TION-DETAILED DIAGNOSIS -------- 18
DRI-AIR ROT AR Y ZONE VALVE--------------------------- 19
PARTS LISTS

ARID-X 18 - 35 APD 1-4 and HPD 1-4--------------- 20

ARID-X 50 - 100 APD 5-9 and HPD 5-9 ------------- 21

OPERA TING MANUAL - APD 1-9, HPD 1-9 POR TABLE DRYERS
Revision 10/8/02

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DRI-AIR INDUSTRIES, INC.

DRYER OPERATION/

FEATURES

The ARID-X dryer series is a dual bed design that provides a
constant supply of dry air to the material hopper. 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 V alve
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 cycle is depicted Page 8.

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 6.

HP4-X Design

Our patented HP4-X design incorporates 4 desiccant beds
where two are stacked, one over the other. 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 the Air FLow Diagram on Page 7.

Page 4

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.

OPERA TING MANUAL - APD 1-9, HPD 1-9 POR TABLE DRYERS
Revision 10/8/02

DRI-AIR INDUSTRIES, INC.

DRYER OPERATION/

FEATURES (Cont.)

Closed Loop Loading System

Dri-Air’s closed loop loading system utilizes a dedicated
blower, small receiver, filtration system and desiccated air to
move the material from the dryer hopper to the molding
machine. This eliminates the possibility that your material will
be contaminated with moisture as with some other material
transfer systems, helping to eliminate defects resulting from
moisture contamination. Please refer to the Closed Loop
Loader System section of this manual for the proper
installation and maintenance.

Dryer Controls

The ARID-X series can be supplied with the standard PLC
Control Module or the advanced Microprocessor Control
Module, while the HP4-X series is only available with the
Microprocessor Control Module.

The PLC Control module includes a PLC control board,
display board, temperature controller and touch pad that is
programmed for the drying cycle described above. The
controller, display board and touch pad indicate the machine
status, alarms, set points and allow you to enter operational
settings for the dryer. These are explained in more detail later
in this manual.

The Microprocessor Control Module is one of the most
sophisticated yet operator friendly controls on the market. It
has many more features than the PLC control module that
provide the operator with more control and operational
flexibility with the dryer. These features and the operating
instructions are covered in detail in the Microprocessor
Control Instruction Manual included with your dryer.

OPERA TING MANUAL - APD 1-9, HPD 1-9 POR TABLE DRYERS
Revision 10/8/02

Page 5

AIR FLOW SCHEMATIC

FOR APD 1-9 DRYERS

DRI-AIR INDUSTRIES, INC.

CONTROL

THERMO COUPLE

H1

VORTEX BLOW ER

4-W AY ZON E

VENT

REGENERATION

AND PRO CESS

HEATER

SAFETY THERMAL

VA LVE

XX

FILTER

CONTROL

THERMO COUPLE

H2

CONTROL

THERMO COUPLE

L1

Page 6

CONTROL

THERMO COUPLE

L2

SAFETY THERMAL

TO HOPPER

PROCESS H EATER

(APD 5-9)

OPERA TING MANUAL - APD 1-9, HPD 1-9 POR TABLE DRYERS
Revision 10/8/02

AIR FLOW SCHEMATIC

FOR HPD 1-9 DRYERS

DRI-AIR INDUSTRIES, INC.

CONTROL

THERM OCOU PLE

H1

CONTROL

THERM O CO UPLE *

M1

CONTROL

THERM OCOU PLE

L1

VORTEX BLOW ER

VENT

SAFETY THERMAL

SECOND ARY

REGENERATION

HEATER

4-WAY ZO N E

VA LVE

XX

FILTER

CONTROL

THERM OCOU PLE

H2

CONTROL

THERM O CO UPLE *

M2

CONTROL

THERM OCOU PLE

L2

REGENERATION

AND PRO CESS

HEATER

* - CONTROL THERMOCOUPLE

FOR PLC CONTROL ONLY

OPERA TING MANUAL - APD 1-9, HPD 1-9 POR TABLE DRYERS
Revision 10/8/02

SAFETY THERMAL

REGENERATION

AND PRO CESS

HEATER

SAFETY THERMAL

TO HOPPER

PROCESS HEATER

(HPD 5-9)

Page 7

DRYER CYCLE

DIAGRAM

DRI-AIR INDUSTRIES, INC.

Zo ne 1 C o o ling

Va lv e Shif t s

Zo ne 1 H e a ti ng

Va lve Shif t s

Dryer Cycle

Diagram

D esicant Bed s

XX

Zo ne 2 H e a ti ng

Zo ne 2 C o o ling

Page 8

OPERA TING MANUAL - APD 1-9, HPD 1-9 POR TABLE DRYERS
Revision 10/8/02