Sterling 350-2100 CFM - Manuals

350-2100 cfm Dryers Chapter 1: Safety 6 of 58 Chapter 1: Safety 1-1 How to Use This Manual Use this manual as a guide and reference for installing, operating, and maintaining your dehumidifying dryer. The purpose is to assist you in applying efficient, proven techniques that enhance equipment produc...

350-2100 cfm Dryers Chapter 1: Safety 7 of 58 1-2 Safety Tag Information Dryer Safety Tags Hot! Read Operation and Installation Manual High Voltage Earth Ground Inside Enclosure PE Protected Earth Lifting Point Ground

350-2100 cfm Dryers Chapter 1: Safety 8 of 58 1-3 Warnings and Precautions Our equipment is designed to provide safe and reliable operation when installed and operated within design specifications, following national and local safety codes. This may include, but is not limited to OSHA, NEC, CSA, SPI...

350-2100 cfm Dryers Chapter 1: Safety 10 of 58 Learn and always use safe operation. Cooperate with co-workers to promote safe practices. Immediately report any potentially dangerous situation to your supervisor or appropriate person. REMEMBER: • NEVER place your hands or any part of your body in any...

350-2100 cfm Dryers Chapter 1: Safety 11 of 58 Before removing, adjusting, or replacing parts on a machine, remember to turn off all electric supplies and all accessory equipment at the machine, and disconnect and lockout electrical power. Attach warning tags to the disconnect switch. When you need ...

350-2100 cfm Dryers Chapter 2: Functional Description 12 of 58 Chapter 2: Functional Description 2-1 Models Covered in This Manual This manual provides operation, installation, and maintenance instructions for WD/SDA/CDA 350, 425, 500, 600, 700, 850, 1000, 1250, 1500, 1800, and 2100 cfm large dehumi...

350-2100 cfm Dryers Chapter 2: Functional Description 13 of 58 2-5 The Closed Loop Drying System ACS dryers force hot, dry air through the resin in the drying hopper, where the air picks up moisture from the material and is drawn back to the dryer. In the dryer, moisture is stripped from the air by ...

350-2100 cfm Dryers Chapter 2: Functional Description 14 of 58 When a desiccant bed is on-line, it absorbs moisture from the process air. In time, the bed becomes saturated with moisture and needs to be regenerated. The dryer automatically redirects the process airflow to the second bed, and starts ...

350-2100 cfm Dryers Chapter 2: Functional Description 15 of 58 Figure 3: Dryer Dimensions ? E A B C REAR VIEW TOP VIEW D 34" RADIUS DESICCANT TOWER(LEFT SIDE) OPTIONALAFTERCOOLER REGEN BLOWER AND FILTER PROCESS BLOWER PROCESS HEATER PROCESS AIR OUTLET PROCESS RETURNFILTER 1.5" MPTINLET 1.5&#...

350-2100 cfm Dryers Chapter 2: Functional Description 16 of 58 G F I H LEFT 18" MINIMUM MAINTENANCE CLEARANCE 24" SUGGESTED MINIMUM VERTICAL CLEARANCE WD-2100WD-1800 WD-1250 WD-1500 WD-850 WD-1000 100 90½ 82½ 44½ 90.5 88 70½ 91½ 83 100 90½ 82½ 44½ 90.5 88 70½ 91½ 83 100 90½ 82½ 44½ 90.5 88 7...

350-2100 cfm Dryers Chapter 3: Installation 17 of 58 Chapter 3: Installation 3-1 Work Rules The installation, operation, and maintenance of this equipment must be conducted in accordance with all applicable work and safety codes for the installation location. This may include, but not limited to, OS...

350-2100 cfm Dryers Chapter 3: Installation 18 of 58 ; Keep the delivery (to the drying hopper) hose as short as possible to minimize heat loss. Insulated hose is recommended and available for maximum energy savings. ; Do not use insulated hose on the return (from the drying hopper) ; Do not shorten...

350-2100 cfm Dryers Chapter 3: Installation 19 of 58 Figure 5: Typical Control Panel Process Heater Amps Regen Heater Amps Redundant High Temp Safety Redundant High Temp Alarm -40 -35 -30 -25 -20 -15 -10 -5 0 DEW POINT(F.) Redundant High Temp Reset A0542534 A0542757 A0542533 Adjustment Air Temp Low ...

350-2100 cfm Dryers Chapter 4: Control Panel 20 of 58 Chapter 4: Control Panel 4-1 Control Panel Indicator Lights PROCESS BLOWER ON This indicator lights when the process blower is energized. PROCESS HEATER ON This indicator lights when the process air heaters are energized. HIGH PROCESS AIR TEMPERA...

350-2100 cfm Dryers Chapter 4: Control Panel 21 of 58 ; The alarm mode and value are factory-set to track 25°F below the process setpoint. The alarm value is a deviation above the process setpoint. ; This alarm is informational. If the alarm light stays lit for an extended period of time, check for ...

350-2100 cfm Dryers Chapter 4: Control Panel 22 of 58 VALVE POSITION ERROR A pair of position switches confirm proper shifting of the valves. If full travel is not confirmed by the switches, the cycle will not begin on the new bed. 4-2 Switches and Meters ON/OFF SELECTOR SWITCH This energizes or de-...

350-2100 cfm Dryers Chapter 4: Control Panel 23 of 58 ; If one or two of a heater's three meters indicates a low reading, a burned-out heater is likely, and should be serviced. 4-3 PLC Control These dryers are equipped with an Omron C28K programmable logic controller (PLC). The "brick" type ...

350-2100 cfm Dryers Chapter 4: Control Panel 24 of 58 Figure 6: Process Air Temperature Controller

350-2100 cfm Dryers Chapter 4: Control Panel 25 of 58 4-5 Temperature Controller LED Indicators Process Value Numeric LED During normal operation, this red LED on the control displays the process temperature at the "To Process" thermocouple. It also lists parameters during setup and error me...

350-2100 cfm Dryers Chapter 4: Control Panel 26 of 58 4-6 Temperature Controller Keys – (See Figure 5 in Section 3-6) LEVEL KEY When pressed for two seconds or more, this key selects the next of the three indication levels (0, 1 and 2) where specific control parameters may be set. The control defaul...

350-2100 cfm Dryers Chapter 5: Startup, Shutdown & Operation 27 of 58 Chapter 5: Startup, Shutdown & Operation 5-1 Pre-Startup Checks ; Check the process and return hoses for tight connections. ; Check that all companion equipment, such as the drying hopper, loading system and aftercooler ar...

350-2100 cfm Dryers Chapter 5: Startup, Shutdown & Operation 28 of 58 6. If the dryer has an aftercooler, make sure there is proper flow of cooling water flow through the coil, and any trapped air has been bled from the system. 7. Make sure the damper on the hopper air inlet tube is about 50% op...

350-2100 cfm Dryers Chapter 5: Startup, Shutdown & Operation 29 of 58 The low temperature alarm value is a deviation of the process air temperature set point. The alarm value will track the set temperature. If the low temperature alarm is set to "-25", a low temperature alarm occurs if t...

350-2100 cfm Dryers Chapter 5: Startup, Shutdown & Operation 30 of 58 5-9 Changing the Display from Fahrenheit to Centigrade To change the display from the factory °F setting to °C: 1. Disconnect main electrical power to the dryer. 1 2 3 4 5 6 ON 2. Press up the latch at the bottom of the contro...

350-2100 cfm Dryers Chapter 5: Startup, Shutdown & Operation 31 of 58 5-11 Regeneration Monitoring System Signal Processor Dryer models 350 through 2100 have a 1/8 DIN signal processor that monitors the bleed air discharged from the desiccant tower being regenerated. The signal processor has fou...

350-2100 cfm Dryers Chapter 5: Startup, Shutdown & Operation 32 of 58 • Press again to move one digit to the right. Then press to display the desired value. • Follow this procedure to set all four digits. • When satisfied with the value displayed, press to save the new value to the regeneration ...

350-2100 cfm Dryers Chapter 5: Startup, Shutdown & Operation 33 of 58 Setting the Current Day of the Week, Hour and Minute: 1. Apply main power to the dryer. 2. Turn on the timer by sliding the left manual override switch to the "ON" position. The timer's memory is cleared on power up. 3...

350-2100 cfm Dryers Chapter 5: Startup, Shutdown & Operation 34 of 58 7. Press once. The hour and minute display returns to zeroes and the hour indicator should be blinking. Setting the stop time: 1. Press or until the desired dryer shut down hour is displayed. The shut down time is set in a 24-...

350-2100 cfm Dryers Chapter 6: Maintenance 35 of 58 Chapter 6: Maintenance 6-1 Servicing the Process Air Filters (Models 350-700) WARNING: Operating the dryer without the process air filters installed will void the warranty. Filter Cleaning is an important part of dryer maintenance. Dryer models 350...

350-2100 cfm Dryers Chapter 6: Maintenance 36 of 58 to remove all dirt and suds (less than 40 psi, no nozzle). If the clean or downstream side of the filter has been contaminated with dirty water during the soak cycle, rinse from both sides. • Dry the filter before re-using. Circulate warm air at le...

350-2100 cfm Dryers Chapter 6: Maintenance 37 of 58 service. Satisfactory filtration should be obtained through the second or third washing , however the dirt holding capacity of the filter decreases after each washing. After Each Cleaning: • Inspect the filter element – hold a light bulb behind the...

350-2100 cfm Dryers Chapter 6: Maintenance 39 of 58 • Noticeable amounts of desiccant in the beds is a medium-brown color, or darker. If any of these signs are noticed, the desiccant in the desiccant beds should be replaced. Desiccant replacement kits are available from the Parts Department. If you ...

350-2100 cfm Dryers Chapter 6: Maintenance 40 of 58 Figure 6: Desiccant Amounts Required Dryer Desiccant Required per Tower Model Large Bead Small Bead Total 350 30 76 106 350-RT 30 76 106 425 30 90 120 425-RT 30 90 120 500 40 100 140 500-RT 40 100 140 600 40 120 160 600-RT 40 120 160 700 40 35 175 ...

350-2100 cfm Dryers Chapter 6: Maintenance 41 of 58 6-10 Regeneration Heater Replacement Procedure Dryer models 350 through 2100 Dryers have four or eight three-phase regeneration heaters wired in the wye formation mounted in the insulated box directly above the lower valve. WARNING! WARNING! Discon...

350-2100 cfm Dryers Chapter 6: Maintenance 42 of 58 6-11 Restoring a Temperature Controller to the Factory Setup If the control's pre-set parameters have been tampered with and it will no longer control, try restoring the factory set up: 1. Turn off the power switch on the graphic display and remove...

350-2100 cfm Dryers Chapter 6: Maintenance 45 of 58 Figure 7: Factory Pre-Set Control Parameters P arameter Setting Levels Parameter Description PV LED Display Dryer SV LED Setting Display at Power Up 10 ° F Alarm Range 10 ° F 0 Proportional Bandwidth 90.0 Seconds Reset Time 20 Seconds Rate Time 0 °...

350-2100 cfm Dryers Chapter 6: Maintenance 46 of 58 Figure 8: Process Temperature Control Error Messages Message Cause Control Output Alarm Output With output unit other than current output unit With current output unit Input temperature has risen beyond the upper limit of the temperature range by m...

350-2100 cfm Dryers Chapter 6: Maintenance 47 of 58 Figure 9: Regeneration Monitor Signal Processor Error Messages Item Condition Error Output Status Corrective Message Compara- tive Outputs BCD Output Linear Output Commun- ications Action Device Failure CPU RAM error, external memory error, memory ...

350-2100 cfm Dryers Chapter 6: Maintenance 48 of 58 6-12 Regeneration Monitor Advanced Programming The regeneration monitor has three menu levels, numbered 0 through 2. Each menu level allows specific parameters to be viewed and/or set. Moving Between Levels Level 0, the RUN mode, is the default and...

350-2100 cfm Dryers Chapter 6: Maintenance 49 of 58 LEVEL 1 In this level, the four setpoints can be changed, plus Hysteresis, Input Shift and Security Protection can be set. Use to move from one parameter to the next. When the desired parameter appears on the LED display, press to select that param...

350-2100 cfm Dryers Chapter 6: Maintenance 50 of 58 Press after appears on the LED display. Use and to set the value. Then press to save the new setting to memory. Security Protection - When Security Protection is enabled, the setpoints can’t be changed when the Regeneration Monitor is in “RUN” mode...

350-2100 cfm Dryers Chapter 7: Troubleshooting 52 of 58 Chapter 7: Troubleshooting PROBLEM POSSIBLE CAUSE CORRECTIVE ACTION Little or no air coming from process delivery tube. A. Dirty Filters A. Clean or replace filters. B. Desiccant beds contaminated by material or plasticizer leaking into the sys...

350-2100 cfm Dryers Chapter 7: Troubleshooting 53 of 58 PROBLEM POSSIBLE CAUSE CORRECTIVE ACTION Loss or reduction of process air temperature. A. Process heaters are faulty. A. Check for open or shorted heaters. Replace if required. Check the fuses. B. Solid-state temperature controller faulty. B. R...

350-2100 cfm Dryers Chapter 8: Appendix 55 of 58 Chapter 8: Appendix 8-1 Returned Material Policy Credit Returns Prior to the return of any material, authorization must be given by the manufacturer . A RMS number will be assigned for the equipment to be returned. Reason for requesting the return mus...

350-2100 cfm Dryers Chapter 8: Appendix 58 of 58 8-2 Technical Assistance Parts Department Call toll-free 7am–5pm CST [800] 423-3183 or call [262] 641-8610 Fax: [262] 641-8653 The ACS Customer Service Group will provide your company with genuine OEM quality parts manufactured to engineering design s...