DRI-AIR INDUSTRIES, INC.
DRI-AIR INDUSTRIES, INC. DRI-AIR INDUSTRIES, INC. 16 THOMPSON ROAD P.O. BOX 1020 EAST WINDSOR, CT 06088-1020 Tel. (860) 627-5110 FAX (860) 623-4477 Internet http://www.dri-air.com e-mail: sales@dri-air.
DRI-AIR INDUSTRIES, INC.
DRI-AIR INDUSTRIES, INC. DRYER OPERATION/ FEATURES The ARID-X and HP4-X 150, 200, and 300 model dryers are designed for use in high volume injection or extrusion molding applications with usage rates up to 300 lbs. per hour. 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.
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.
DRI-AIR INDUSTRIES, INC.
DRI-AIR INDUSTRIES, INC.
Page 8 Zo ne 2 C o o ling Va lve Shifts Va lve Shifts Zo ne 1 C o o ling DRYER CYCLE DIAGRAM Zo ne 2 He a ting D rye r C ycle D ia g ra m D e sica nt B e d s Zo ne 1 He a ting DRI-AIR INDUSTRIES, INC.
UNUSED L1 L2 M1 M2 H1 + + - + - + - + - + - + - Tb1 C h0 C h1 C h2 C h3 C h4 C h5 OPERATING MANUAL - APD 10-13, HPD 10-13 DRYERS Revision 10/8/02 Jp3 7 6 Jp2 5 4 Jp1 3 Page 9 L2 R7 R6 R5 R4 C2 Jp5 Jp6 + C18 C17 C12 R37 D0 D1 D2 Rn6 C7 C6 C5 C4 D3 D4 C8 U3 D5 C15 D15 U6 D7 C9 C13 J2 U N U SED D6 INPUTS U4 U8 PO WER U N U SED Smal l PLC03 REV E L1 Br1+ Jp4 U2 C2 U5 D14 D13 D12 D11 D10 D9 D8 C18 C19 J5 C14 DRI-AIR INDUSTRIES EXPAND
DRI-AIR INDUSTRIES, INC. INSTALLATION PROCEDURE For all Dri-Air models except ARID-X 10, AHM-1, & PDII Electrical Connection: Open electrical access door on the front of the electric panel enclosure box by turning the disconnect off , loosening the clamping screws and sliding the clamps off the door tabs. 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 panel enclosure box.
DRI-AIR INDUSTRIES, INC. START-UP PROCEDURE Standard Electrics Turn Power on to Dryer: 1. Power light indicates power to the unit is on. 2. Illuminated Blower Light indicates Blower is on. 3. Flashing Zone light indicates bed is in Regeneration cycle. 4. Steady Zone light means bed is in cooling cycle. 5. Illuminated Heater lights indicate heater is on. Alarm Conditions: 6. Flashing High Temp. alarm indicates an over or under temp alarm. Unit shuts down. 7. Steady High Temp.
DRI-AIR INDUSTRIES, INC. Microprocessor Control 1. 2. 3. 4. Power light indicates there is power on. After initializing, dri Air will be displayed. Press START to start the dryer. To set the temperature: press SET - right display shows set temp change setting using arrow keys press ENTER to input new setting 5. Left display indicates actual temperature 6. Right display shows dewpoint or set temp press TEMP D.POINT button to change 7.
DRI-AIR INDUSTRIES, INC. The closed loop loading system uses a separate vortex blower to provide the vacuum and “pressure assist” necessary to move the dried resin from the hopper take-off box to the receiver mounted on the feed throat of the molding machine. CLOSED LOOP LOADING SYSYEM At the start of the loading sequence, the lower proximity switch on the receiver senses there is no material. The blower starts, and the loader valve on the inlet line to the blower is opened.
DRI-AIR INDUSTRIES, INC. VACUUM CHECK Prior to production operation of the loading system, we strongly recommend that you ensure the loading system is properly sealed. To test the seal, follow the steps detailed below. While the loader is running, close the hopper slide gate and remove the material wand and attached hose from the takeoff box. Check the vacuum level by placing your hand over the wand. Return the wand to the takeoff box. Remove the hose from the bottom port of the blowback filter canister.
DRI-AIR INDUSTRIES, INC. To adjust the sensor’s sensitivity, turn the adjustment screw on the back of the sensor. The adjustment screw turns a 20 turn potentiometer with a clutch to prevent over adjustment. If you are unsure as to the current setting of the sensor, turn the screw 20 turns counterclockwise. The LED should light with no material in front of the sensor. Turn the screw 4-6 turns clockwise and proceed as directed below.
DRI-AIR INDUSTRIES, INC. BASIC TROUBLE SHOOTING for CLOSED LOOP LOADING SYSTEM Material will not feed. 1. Ensure the proximity sensors are adjusted and working properly. Both sensors LED’s should be lit when the receiver is empty. Check that the sensors are tightened on the bracket and the cable connectors are tight and correct. 2. Check system for leaks. Tighten hose clamps. Check seal at receiver/feed throat interface by comparing vacuum levels as directed in in previous section on Receiver Installation.
DRI-AIR INDUSTRIES, INC. DRYER OPERATION TROUBLE SHOOTING The new Dri-Air Standard PLC and MICROPROCESSOR Electrics were designed for quick diagnosis of problems. The following steps should be done before proceeding with other diagnostic steps. 1. Check the Power Circuit: a. Incoming fuses or circuit breaker b. All dryer fuses: Each fuse, with the exception of the main fuses, has a blown fuse indicator light that illuminates when the fuse is blown. c. Is power supplied to the unit? d.
DRI-AIR INDUSTRIES, INC. DRYER OPERATION DETAILED DIAGNOSIS (PLC Controlled Dryer) For Micro Controlled dryers please see the Microprocessor Control Instruction Manual Machine will not start: Power light is not on. 1. Check incoming fuses inside control box to see if they are tripped or blown. Reset circuit breakers by turning them off and then on. 2. Check small fuses (FU1 & FU2) next to contactor. The LED will be lit if they are blown.
DRI-AIR INDUSTRIES, INC. Check the limit first by pressing the SET button on the temperature control and holding until AL is displayed. The setting shown indicated the amount over set point that the alarm will be actuated. It is factory set to 50°F (30°C) and should not be set below 30°F (16°C) or it will actuate too soon. If the temp exceeds the set point check the following: 1. Remove the hose from the top of the hopper to check air flow.
DRI-AIR INDUSTRIES, INC. 1. Check all air line connections to make sure they are tight. 2. Check air lines to ensure they are not cracked or broken. 3. Check incoming air pressure (60 psi min.). 4. Check operation of solenoid valve (See below). To check operation of solenoid valve, remove front panel to blower compartment. The valve is located on the right-hand wall, directly connected to the air pressure regulator. Located on the top of the valve is a button, that when depressed will actuate the valve.
DRI-AIR INDUSTRIES, INC. APD 10 - 13 and HPD 10 - 13 DESCRIPTION GENERAL CLOSED LOOP LOADER ELECTRICAL NOTE: TO ORDER BLOWERS OR OVERLOAD REFER TO PART NUMBER ON ITEM.
DRI-AIR INDUSTRIES, INC.
DRI-AIR INDUSTRIES, INC.
