Conair 25 - Manuals

U s i n g t h e D S e r i e s a s a C e n t r a lD r y e r This manual incorporates the information necessary to use the Conair D seriesdryer as a central dryer. Throughout this manual, information particular to cen-tral dyer application of the D series dryer is called out by the following treat-men...

1 - 4 l I n t r o d u c t i o n A T T E N T I O N : R e a d t h i s s o n o o n e g e t s h u r t We design equipment with the user’s safety in mind. You can avoid the potentialhazards identified on this machine by following the procedures outlined below andelsewhere in the User Guide. W A R N I N G...

I n t r o d u c t i o n l 1 - 5 H o w t o U s e t h e L o c k o u t D e v i c e CAUTION: Before performing maintenance or repairs on this product, you should disconnect and lockout electri- cal power sources to prevent injury from unexpected energization or start-up. A lockable device has been provi...

D e s c r i p t i o n W h a t i s t h e D c a r o u s e l d r y e r ? . . . . . . . . . . 2 - 2 T y p i c a l a p p l i c a t i o n s . . . . . . . . . . . . . . . . . 2 - 2 H o w i t w o r k s . . . . . . . . . . . . . . . . . . . . . . 2 - 4 S p e c i f i c a t i o n s : D d r y e r . . . . . . . ...

D e s c r i p t i o n l 2 - 3 2 Description Central Central When supplied for central dryingapplications, the D series dryeris not equipped with a processheater. Therefore, as a centraldryer, the D dryer will only sup-ply dry air to the hoppers. T y p i c a l A p p l i c a t i o n s ( c o n t i n u ...

H o w I t W o r k s The D carousel dryer achieves continuous, closed loop drying by passing air simul-taneously through two heaters and three tanks of molecular sieve desiccant. T HE P ROCESS (D RYING ) C YCLE The process blower pulls moist air from the top of the drying hopper. The air pass-es thro...

2 - 6 l D e s c r i p t i o n S p e c i f i c a t i o n s : D C a r o u s e l DEHUMIDIFYING DRYERSD Small Series Carousel Dryers MODEL D15 D25 D50 D75 D100 Performance characteristics (with full hopper) Air flow {SCFM} * 12 20 35 50 80 Air flow {ACFM @ 250°} * 16 27 47 67 107 Drying temperature All ...

I n s t a l l a t i o n U n p a c k i n g t h e b o x e s . . . . . . . . . . . . . . . . . 3 - 2 P r e p a r i n g f o r i n s t a l l a t i o n . . . . . . . . . . . . . . 3 - 4 M o u n t i n g t h e d r y e r a n d h o p p e r o n a p r o c e s s i n g m a c h i n e . . . . . . . . . . . . . . 3 ...

3 - 2 l I n s t a l l a t i o n U n p a c k i n g t h e B o x e s The D carousel dryer comes in one to four boxes, depending on the model andoptions ordered. The boxes could include (depends on options selected): 1 Carefully remove the dryer and components from their shipping containers,and set upri...

12 in. (30.48 cm)needed to removeoptional aftercoolercoil for cleaning 3 in. (7.62 cm) 3 in. (7.62 cm) Regeneration exhausthigh temperature 6 in. (15.24 cm) 6 in. (15.24 cm) needed to change filter D-75 & D-100 Minimum Clearance 6 in. (15.24 cm) 12 in. (30.48 cm)needed to removeoptional aftercoo...

I n s t a l l a t i o n l 3 - 5 6 inches(15.24 cm)square 5 inches (12.7 cm) square 7/16 inches (1.11 cm) diameter 2 inches (5.08 cm) diameter 4 inches(10.16 cm)square 3 inches (7.62 cm) square 7/16 inches (1.11 cm) diameter 1 inch (2.54 cm) diameter NOTE: If your mounting surface does not matchthe s...

M o u n t i n g t h e D r y e r a n d H o p p e r o na P r o c e s s i n g M a c h i n e WARNING : You are responsible for the structural integrity of this installation. We recommend that you: ❒ ❒ Use bolts no smaller than 3/8 inch (M 10) when mounting the hopper/dryer combination to the throat of a...

I n s t a l l a t i o n l 3 - 9 3 Description M o u n t i n g t h e H o p p e r CAUTION: To prevent accident and injury, lift the empty hopper onto the throat of the processing machine using a hoist and the lifting lugs provided. Also lift the dryer fromthe shipping container using a hoist and the l...

3 - 1 0 l I n s t a l l a t i o n M o u n t i n g t h e D r y e r o n t h e F l o o rS t a n d ; H o p p e r o n t h e T h r o a t For information about mounting the dryer on the floor stand and the hopper on thethroat, refer to Appendix B. M o u n t i n g t h e D r y e r a n d H o p p e r o nt h e ...

C h e c k i n g f o r P r o p e r A i r F l o w This step is only needed on 50, 75, and 100 models if the phase detection optionwas not ordered with the dryer. CAUTION: This step must be performed before the dryer’s air hoses are connected to the hopper. Performing this step after the air hoses are ...

C h e c k i n g f o r P r o p e r A i r F l o w ( c o n t i n u e d ) 3 Press the START button. Hold your hand near the deliveryair outlet. You should feel air blowing out of the outlet. 4 Press the STOP button. Start I n s t a l l a t i o n l 3 - 1 3 Stop Moistureexhaust Delivery air outlet(15, 25,...

3 Description I n s t a l l a t i o n l 3 - 1 5 C o n n e c t i n g t h e A i r H o s e s Using the two flexible hoses provided, connect the inlets and outlets of the dry-ing hopper to the dryer. If you have positioned the dryer on the floor or mount-ed it to an optional floor stand, make sure the d...

C o n n e c t i n g t h e R T D P r o b e The RTD probe monitors the temperature of the drying air as it enters the hopper.If the probe is not installed correctly, temperature readings will be inaccurate. 1 Insert the probe at the inlet to the hopper. The end of the probe must nottouch the walls of ...

3 Description I n s t a l l a t i o n l 3 - 1 7 M o u n t i n g a L o a d e r o n t h e H o p p e r If you have a Conair loader or vacuum receiver, you canuse the flange and mounting clips provided on the top ofthe hopper. Refer to the manuals that came with yourreceiver or loader for detailed insta...

Te s t i n g T h e I n s t a l l a t i o n (continued) 4 Press the START button. If everything is installed correctly: • The green light on the start button will illuminate. • The process and regeneration blowers turn on. • The process and regeneration heaters turn on. • If the desiccant tanks are n...

S E C T I O N 4 4 Opera tion O p e r a t i o n T h e D C - 1 d r y e r c o n t r o l p a n e l . . . . . . . . . . . 4 - 2 D d r y e r D C - 1 c o n t r o l f u n c t i o n s . . . . . . . . . . 4 - 3 C o n t r o l f u n c t i o n f l o w c h a r t . . . . . . . . . . . . 4 - 3 C o n t r o l f u n c...

T h e D C - 1 D r y e r C o n t r o l P a n e l 4 - 2 l O p e r a t i o n Set Point Actual 1 Process Temp.2 Regen. Temp.3 Return Air Temp.4 Auto Start5 Load Time (MDC)6 Activate Setback Temp.7 Setback Temp.(Process)8 Setback Load Rate9 PM1 Dewpoint Shutdown AlarmsA1 Process High Temp.A2 Process Loop...

Once power is turned on, this screen is dis-played for 5 sec. while the control doessome self-checking. Once power is turned on and screen 1 isdisplayed for 5 sec., this screen is dis-played for another 3 sec. It shows thedryer model number for which the controlis configured. After the model number ...

S c r e e n SCREEN 7 SCREEN 8 SCREEN 9 (MDC Option) 100 F u n c t i o n C o n t r o l F u n c t i o n D e s c r i p t i o n s ( c o n t i n u e d ) This screen shows the actual return air temp measured at the inlet to the process blower. If the optional aftercooler flow control is installed, a setpo...

S c r e e n Screens 15-27 require access code 754. SCREEN 20 (Set up Screen)MDC Option SCREEN 21 (Set up Screen) SCREEN 22 (Set up Screen)Setback Temperature Option F u n c t i o n C o n t r o l F u n c t i o n D e s c r i p t i o n s ( c o n t i n u e d ) This screen shows the time delay settingfor...

To S t a r t D r y i n g 1 Make sure there is material in the hopper. 2 Turn on the main power to the dryer . Make sure the dryer’s disconnect dial is in the ON position. This powers up the con-trol and the display lights will illuminate. 3 Set the drying temperature. Use the Scrollbutton to get to ...

To S t a r t D r y i n g (continued) 4 Press the START button. If everything is installed correctly: • The green light on the start button will illuminate. • The process and regeneration blowers turn on. • The process and regeneration heaters turn on. • If the desiccant tanks are not in their correc...

U s i n g t h e A u t o S t a r t C o u n t d o w nF u n c t i o n The countdown function allows the user to set the D Carousel dryer to automat-ically start at a predetermined time. The countdown time can be set from 0.1 to150.0 hours. To set the countdown time: 1 Use the Scroll button to access th...

4 - 2 0 l O p e r a t i o n S e t t i n g t h e H i g h S e t p o i n t L i m i t s You can protect your drying process by preventing someone from entering processtemperatures above an acceptable level for the material. You can also set the highlimit equal to the process temperature to prevent accid...

M a i n t e n a n c e P r e v e n t a t i v e m a i n t e n a n c e c h e c k l i s t . . . . . . . 5 - 2 C l e a n i n g t h e h o p p e r . . . . . . . . . . . . . . . . . 5 - 3 C l e a n i n g t h e p r o c e s s f i l t e r . . . . . . . . . . . . . 5 - 4 C l e a n i n g t h e r e g e n e r a t ...

5 - 2 l M a i n t e n a n c e P r e v e n t a t i v e M a i n t e n a n c eC h e c k l i s t Routine maintenance will ensure optimum operation and performance of the DCarousel Dryer. We recommend the following maintenance schedule and tasks. • W h e n e v e r y o u c h a n g e m a t e r i a l s ❒ ❒ ...

5 Maintenance M a i n t e n a n c e l 5 - 3 C l e a n i n g t h e H o p p e r CAUTION: Hot surfaces. Always protect yourself from hot surfaces inside and out- side the dryer and drying hopper. The hopper, spreader cone, and discharge assembly should be cleaned thoroughlybetween material changes to p...

5 - 4 l M a i n t e n a n c e C l e a n i n g t h e P r o c e s s F i l t e r Clogged filters reduce air flow and dryer efficiency. Cleaning frequency dependson how much material you process and how dusty it is. 1 Remove the process filter. Remove the black plastic knob.Pull the cap off. Remove thew...

5 Maintenance M a i n t e n a n c e l 5 - 5 C l e a n i n g t h e A f t e r c o o l e r C o i l s If you have the optional aftercooler, you need to clean the cooling coils to keepthem working efficiently. See Appendix C for details. C l e a n i n g t h e P r e c o o l e r C o i l s If you have the o...

Tr o u b l e s h o o t i n g B e f o r e b e g i n n i n g . . . . . . . . . . . . . . . . . . . 6 - 2 A f e w w o r d s o f c a u t i o n . . . . . . . . . . . . . . 6 - 3 D I A G N O S T I C S H o w t o i d e n t i f y t h e c a u s e o f a p r o b l e m . . . . 6 - 4 S h u t d o w n a l a r m s ....

6 - 2 l Tr o u b l e s h o o t i n g B e f o r e B e g i n n i n g You can avoid most problems by following the recommended installation andmaintenance procedures outlined in this User Guide. If you do have a problem,this section will help you determine what caused it and how to fix it. Before you t...

6 Troubleshooting Tr o u b l e s h o o t i n g l 6 - 3 ❏ Find the wiring and equipment diagrams that were shipped with your dryer. These diagrams are the best reference for correcting a prob-lem. The diagrams also will note any custom features, such as specialwiring or alarm capabilities, not covere...

6 - 4 l Tr o u b l e s h o o t i n g H o w t o I d e n t i f y t h e C a u s e o f aP r o b l e m Most dryer malfunctions are indicated by an illuminated Acknowledge Alarm lighton the D carousel dryer control panel. A problem can trigger two types of alarms: • Shut Down: The dryer has automatically ...

Tr o u b l e s h o o t i n g l 6 - 5 S h u t D o w n A l a r m s If the red Acknowledge Alarm LED is blinking, the alarm is a shutdownalarm. The dryer will shutdown automatically to prevent damage to theequipment or personnel. Note that once the Acknowledge Alarm button ispressed once, the blinking ...

Tr o u b l e s h o o t i n g l 6 - 7 S h u t D o w n A l a r m s P r o b l e m A8 Process Blower Pressure – If the process blower pres-sure switch opens (loss ofpressure), it shuts down thedryer. A24 Regen Blower Pressure – The regeneration blowerpressure switch opens (loss ofpressure) and the regen...

Tr o u b l e s h o o t i n g l 6 - 9 6 Troubleshooting Po s s i b l e c a u s e The process blower has mechanicallyfailed or is unable to rotate freely. The process blower has failed electrical-ly. The overload is set incorrectly. S o l u t i o n With the power removed, check theprocess blower for m...

6 - 1 0 l Tr o u b l e s h o o t i n g P a s s i v e A l a r m s If the amber Acknowledge Alarm LED is blinking, the alarm is a passive alarm.The dryer continues to operate, but this problem could prevent correct drying ofyour material. Note that once the Acknowledge Alarm button is pressed once, th...

Tr o u b l e s h o o t i n g l 6 - 1 3 6 Troubleshooting P r o b l e m P23 The MDC conveying blower exceeded the full loadamps rating for the blowermotor. This is a passive alarmso the dryer will continue run-ning, but the material convey-ing function will stop. P25 RTD Integrity – If the process RT...

Tr o u b l e s h o o t i n g l 6 - 1 5 S e t b a c k The setback function available on the DC-1 Dryer is designed to save you moneyon energy costs and keep you from over drying your material. Setback is availableas separate options on both the temperature and load rate setting. This is how setback o...

S e t b a c k ( c o n t i n u e d ) 4 Use Screen 11 to set the temperature setpoint to which the process air willrevert to once the air at the outlet of the drying hopper has reached its setpoint. 5 Use the setback temperature band screen (Screen 22) to set the amount thereturn air temperature has t...

R e p l a c i n g F u s e s 1 Disconnect and lockout the main power supply. 2 Open the electrical enclosure door. 3 Check the fuse. If necessary, pull the fuse out and replace it with a fuse of thesame type and rating. Fuse Blocks To locate the appropriate fuseand replacement part, refer tothe wirin...

6 - 1 8 l Tr o u b l e s h o o t i n g C h e c k i n g H e a t e r S o l i d S t a t e R e l a y s 1 Disconnect and lockout the main power supply. 2 Open the electrical enclosure. 3 Locate the process or regeneration contactors. Refer to the wiring diagramsthat came with your dryer. 4 Check continui...

6 - 2 0 l Tr o u b l e s h o o t i n g A d j u s t i n g t h e L i m i t S w i t c h 1 Stop the dryer. Disconnect and lockout the main power. 2 Remove the right side panel from the dryer. IMPORTANT: Note the position of the tanks. 3 Loosen the screws securing the limit switch to the carousel. Note t...

Tr o u b l e s h o o t i n g l 6 - 2 1 6 Troubleshooting R e p l a c i n g t h e H e a t e r s R e g e n e r a t i o n H e a t e r 1 Disconnect and lockout the main power. 2 Gain access to the regeneration heater by removing the rightdryer side panel. 3 Open the electrical enclosure door. 4 Remove t...

Tr o u b l e s h o o t i n g l 6 - 2 3 ✐ 6 Troubleshooting R e p l a c i n g t h e H e a t e r P r o c e s s H e a t e r 1 Disconnect and lockout the main power. 2 Gain access to the process heater byremoving the left dryer side panel. 3 Open the electrical enclosure door. For D15, D25, and D50 Drye...

Tr o u b l e s h o o t i n g l 6 - 2 5 6 Troubleshooting R e p l a c i n g t h e D e s i c c a n t Ta n k s The D Carousel Dryer has refillable desiccant tanks. When desiccant becomesclogged or contaminated, you should replace the desiccant in all three tanks toensure optimum performance, or purchas...

6 - 2 6 l Tr o u b l e s h o o t i n g R e f i l l i n g t h e D e s i c c a n t Ta n k s When desiccant becomes clogged or contaminated, you should replace the des-iccant in all three tanks to ensure optimum performance. 1 Remove the desiccant tank from the carousel. See “Replacing Desiccant Tanks....

Tr o u b l e s h o o t i n g l 6 - 2 7 6 Troubleshooting R e f i l l i n g t h e D e s i c c a n t Ta n k ( c o n t i n u e d ) 7 Vibrate the tank for 15 minutes. (Important, no further settling canoccur.) 8 Reinstall the screen cap. Place the cap on the band. Install one of the 1/4-20nuts on the ce...

A - 2 l A p p e n d i x E q u i p m e n t G u a r a n t e e Conair guarantees the machinery and equipment on this order, for a period asdefined in the quotation from date of shipment, against defects in material andworkmanship under the normal use and service for which it was recommended(except for ...

A p p e n d i x l B - 1 M o u n t i n g t h e D r y e r o n a F l o o rS t a n d Caution : to prevent accident and injur y, lift the dr yer onto the floor stand using a hoist and lifting lugs provided. 1 Lift the dryer onto the floor stand. Lift using a hoist and the lifting lugs pro-vided. 2 Align ...

I n s t a l l i n g a n A f t e r c o o l e r ( O p t i o n a l ) You can add an aftercooler to the D Carousel Dryer by ordering the optional after-cooler assembly. Installation is easy. The optional aftercooler requires a source of city, tower, or chiller water and a dis-charge or return line. You ...

A p p e n d i x l C - 2 I n s t a l l i n g a n A f t e r c o o l e r ( O p t i o n a l ) (continued) 5 Secure the aftercooler assembly in the aftercooler housing using the fivescrews. NOTE: If an optional flow control was ordered with the aftercooler, see Appendix E "Optional Flow Control" ...

✐ C l e a n i n g t h e A f t e r c o o l e r If you have the optional aftercooler, you need to clean the aftercooler coilsto keep them working efficiently. Cleaning frequency depends on the typeand amount of material you process. 1 Stop the dryer and lockout the main power. 2 Turn off the water flo...

A p p e n d i x l C - 4 C l e a n i n g t h e A f t e r c o o l e r ( c o n t i n u e d ) 5 Remove the aftercooler assembly from the aftercooler housing. 6 Clean the aftercooler assembly using a mild soap and water. Let the after-cooler dry thoroughly before installation. CAUTION: During the cleanin...

A p p e n d i x l D - 1 I n s t a l l i n g t h e F l o w C o n t r o l ( O p t i o n a l ) You can add optional flow controls to the D Carousel Dryer for use with theoptional aftercooler or precooler. Installation is easy. The optional flow control requires a source of city, tower, or chiller water...

E - 1 l A p p e n d i x I n s t a l l i n g a P r e c o o l e r ( O p t i o n a l ) You can add a precooler to the D Carousel Dryer by ordering the optional precool-er assembly. Installation is easy. The optional precooler requires a source of city, tower, or chiller water and a dis-charge or return...

A p p e n d i x l E - 2 I n s t a l l i n g a P r e c o o l e r ( O p t i o n a l ) (continued) 7 Connect the water discharge or return line with the pressure relief valve tothe precooler outlet. Use the bracket supplied to secure the pressure reliefvalve and discharge line to the back of the dryer....

E - 3 l A p p e n d i x C l e a n i n g t h e P r e c o o l e r If you have the optional precooler, you need to clean the precooler coils to keepthem working efficiently. Cleaning frequency depends on the type and amount ofmaterial you process. 1 Stop the dryer and lockout the mainpower. 2 Turn off ...

A p p e n d i x l E - 4 5 Remove the precooler assembly from the precooler housing. 6 Clean the precooler assembly using a mild soap and water. Let the precoolerdry thoroughly before installation. CAUTION: During the cleaning process, DO NOT cut or remove the stainless steel wire that holds the prec...

F - 1 l A p p e n d i x I n s t a l l i n g t h e D e w P o i n t S e n s o r ( O p t i o n a l ) The dew point sensor can be mounted to the inside bottom right corner of the dryer back panel. 1 Peal the tape from the dew point sensor block and place it in the bottom right side of the back panel as ...

A p p e n d i x l G - 1 W h a t i s t h e M D C ? The MDC is a self-contained, mobile unit designed to dry plastic resin and conveyit with dehumidified air directly to a processing machine. This mobile unit containsthe: • Dehumidifying dryer • Drying hopper and material distribution box • Conveying ...

G - 2 l A p p e n d i x NOTE: Throughput rates will var y by MDC model and type ofmaterial. See the Specificationpages for recommendedthroughputs. T y p i c a l A p p l i c a t i o n s The MDC was designed for drying and conveying beside the press. But it can alsobe used to pre-dry material in one l...

H o w C o n v e y i n g W o r k s When the conveying function is turned on, the MDC uses dry air to move materialfrom the drying hopper to the process machine as it is needed. 4 Material enters the vacuum receiver and falls into the receiver and viewing chamber. The blower pulls air through the vacu...

G - 4 l A p p e n d i x Central When configured asa central dryer, theMDC option is notavailable. 6 in. (15.2 cm) 1.625 in. dia. (4.1 cm) through hole 6 in. (15.2 cm) 4 in. (10.2 mm) 1.625 in. dia. (4.1 cm) through hole 4 in. (10.2 cm) Outlet - 2 in. dia. {5.1 cm} S p e c i f i c a t i o n s : M D C...

S p e c i f i c a t i o n s : M D C ( c o n t i n u e d ) Central When config-ured as a centraldryer, the MDCoption is notavailable. SPECIFICATION NOTES: * Consult Conair about other available hopper selections. † SCFM stands for standard cubic feet per minute, referenced to a pre-specified pressure...

G - 8 l A p p e n d i x P r e p a r i n g f o r I n s t a l l a t i o n The MDC has been designed for use beside the processing machine. The mobileunit also can be used for pre-drying in a remote location. 1 Make sure the location for the MDC provides: ❒ A grounded power source supplying the correct...

I n s t a l l i n g t h e M D C The MDC was designed to be mobile. So every time you move the MDC, you willneed to mount the vacuum receiver, connect the main power source, and connect awater source for the optional aftercooler. Phasing of electric power should be consistant between locations. The f...

G - 1 0 l A p p e n d i x C o n n e c t i n g C o n v e y i n g L i n e s The vertical conveying tubes and flexible conveying hoses may have been removedfor shipping. To assemble: 1 Insert each vertical conveying tube into its quick disconnect fitting on the MDC. Push the tube down until you feel it...

C o n n e c t i n g t h e R T D P r o b e See “Connecting the RTD Probe” page 3-16 C o n n e c t i n g t h e D e m a n d S e n s o r The capacitive demand sensor monitors the level of material in the viewing cham-ber of the vacuum receiver when the MDC is conveying. The sensor signals theMDC control...

To S t a r t C o n v e y i n g 1 Move the MDC to the processing machine. Lock the wheels and connect the main power source. Connect the water source if you have an aftercooler. 2 Mount the vacuum receiver on the feed throat. Push the vacuum receiver onto the mounting bracket. 3 Place the appropriate...

G - 1 4 l A p p e n d i x To S t o p C o n v e y i n g 1 Set the load time to zero. Once the load time is set to zero, conveying will stop. See page 4-6, Screen 9 Tr a n s p o r t i n g t h e M D C The MDC can be moved to another processing machine, to a pre-drying area, or toan area away from the p...

P r e v e n t a t i v e M a i n t e n a n c e S c h e d u l e See “Preventative Maintenance Checklist” page 5-2 C l e a n i n g t h e H o p p e r See “Cleaning the Hopper” page 5-3 C l e a n i n g t h e C o n v e y i n g L i n e s This method should be used only after most of the material has been d...

G - 1 6 l A p p e n d i x C l e a n i n g t h e V a c u u m R e c e i v e r The vacuum receiver should be cleaned anytime you change materials. Replace thescreen mesh filter if it is torn, damaged, distorted, or so clogged with material thatit cannot be cleaned. 1 Turn off the conveying system by se...

C l e a n i n g t h e D u s t C o l l e c t o r The dust collector filters dust and fines from the air used to convey material. Thefilter should be cleaned regularly to maintain conveying air flow and optimum performance of the conveying blower. 1 Turn off the conveying system by setting the load ti...

C l e a n i n g t h e P r o c e s s F i l t e r See “Cleaning the Process Filter” page 5-4 C l e a n i n g t h e R e g e n e r a t i o n F i l t e r See “Cleaning the Regeneration Filter” page 5-4 C l e a n i n g t h e A f t e r c o o l e r C o i l s See “Cleaning the Aftercooler Coils” page 5-5 C l...