Operating Instructions Adsorption Dryer CTT 300 Colortronic GmbH
CTT 300 Colortronic GmbH Otto-Hahn-Straße 10-14 D-61381 Friedrichsdorf USA Colortronic, Inc. VPR Commerc Center, Suite 406/407 1001 Lower Landing Road Blackwood, NJ 08012 Telephone (0 61 75) 7 92-0 Telefax (0 61 75) 7 92-1 79 Email ctde@colortronic.com Telephone (609) 374-9200 Telefax (609) 374-9311 Email ctusa@colortronic.com Technical service: Service department Telephone: (0 61 75) 7 92-2 22 Telefax: (0 61 75) 7 92-1 19 Email service.d@colortronic.
CTT 300 Colortronic GmbH retains all rights to change the information in these operating instructions at any time without notice. We assume no liability for any errors or direct or indirect damage resulting in context with these operating instructions. Copying, translation or publication in any form except for personal use of purchaser requires approval from Colortronic GmbH. All rights reserved.
CTT 300 Table of contents 1. Safety instructions (Version: 64.10-0127GB01 10/97) . . . . . . . . . . . . . 1-1 1.1. 1.2. 1.3. 1.4. Warnings and symbols. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Explanations and information . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 For your safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 For the safety of the devices . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9 2.
CTT 300 4. Start-up (Version: 64.10-0130GB04 03/98). . . . . . . . . . . . . . . . . . . . . . . 4-1 4.1. Control system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 4.1.1. Key assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3 4.1.2. Flow chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4 4.2. Switching on the dryer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5 4.2.1. Operation statuses . . .
CTT 300 5. Maintenance (Version: 64.10-0146GB01 03/98) . . . . . . . . . . . . . . . . . . 5-1 5.1. 5.2. 5.3. 5.4. 5.5. Maintenance intervals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3 Cleaning/renewing the air filters. . . . . . . . . . . . . . . . . . . . . . . . . 5-4 Tensioning the V-belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8 Disposing of the drying agent. . . . . . . . . . . . . . . . . . . . . . . . . .
Dehumidified air dryer 1. Safety instructions Version: 64.10-0127GB01 10/97 » These safety instructions apply to all persons within the range of action of the equipment. Please inform all persons within the range of action of the equipment of the direct and indirect hazards connected with the equipment. These operating instructions are to be used by all persons assigned activities connected with the equipment. Knowledge of the English language is prerequisite.
Dehumidified air dryer 1.1. Warnings and symbols The following warnings and symbols are used in these operating instructions: » This symbol indicates danger to life! Fatal or serious injury is possible if the corresponding instructions, regulations or warnings are not observed. L This symbol indicates that serious injury is possible if the corresponding instructions, regulations or warnings are not observed.
Dehumidified air dryer 1.2. Explanations and information Various terms and designations are used in these operating instructions to ensure clarity. Therefore please note that the terms used in the text stand for the corresponding explanations listed below. • Equipment ”Equipment” can mean an individual unit, a machine or an installation. personnel • Operating The ”operating personnel” are persons operating the equipment on their own responsibility or according to instructions.
Dehumidified air dryer 1.3. For your safety • The operator of this machine must be at least 16 years old. these operating instructions carefully before the initial start-up. Observe all • Read points. Contact us if anything is unclear. This avoids injury and damage to equipment! instructions must be stored in such a way that they are available at all times • These at the place of operation of the machine.
Dehumidified air dryer local regulations and requirements pertaining to the equipment must be • The observed. ”5 safety rules” as provided in DIN VDE 0105, Section 1, must be observed • The for all work carried out on the equipment. electrical components from the mains supply before work is carried • Disconnect out on these components. Danger to life and limb from electric shock! not modify, add other equipment or change the design of the equipment • Do without the approval of the manufacturer.
Dehumidified air dryer work may be carried out only by trained staff. • Repair Danger of accidents! operate the equipment when it is partly dismantled. • Never Danger! Limbs may be caught in machinery! Electric shock! machine may only be operated when all the associated components are • The properly connected up and in accordance with the relevant regulations. case of malfunction, shut down the equipment immediately. Have faults • Incorrected immediately.
Dehumidified air dryer air filters should only be cleaned/replaced when the the main switch is off and • The the blower has stopped. This avoids injury and damage to equipment! operate the dryer without side panels. • Never Danger: Limbs may be caught in machinery! Injury through burns! the v-belts of the blower only when the main switch is switched off and the • Check blowers have stopped.
Dehumidified air dryer care that the device is not standing on the mains cable. • Take This will prevent danger to people and material! note that the drying cells, drying hoppers and air pipings grow hot during • Please use.
Dehumidified air dryer 1.4. For the safety of the devices • Never change settings without carefully assessing the consequences. • Use only original Colortronic spare parts. • Observe the maintenance instructions. • Keep a record of all maintenance works and repairs. • Please note that electronic components can be damaged by static discharge. initial operation and in regular intervals, make sure that no electrical • Before connections are loose.
Dehumidified air dryer that too large amounts taken from the drying hopper lead to insufficient • Note drying of the material. the air stop valves of drying hoppers which are empty or have not been • Close used. • Note down all data which you have entered into the control system. • The password is to be entrusted to authorised personnel only. note that the temperature of the dryer heating system must always be set • Please lower than that of the supplementary heaters.
Dehumidified air dryer 2. Assembly instructions Version: 64.10-0128GB02 10/97 » These installation instructions are intended for persons with skills in electrical and mechanical areas due to their training, experience and received instructions. Personnel using these installation instructions must be instructed in the regulations for the prevention of accidents, the operating conditions and safety regulations and their implementation. Ensure in each case that the personnel are informed.
Dehumidified air dryer F Install the equipment such that all parts are easily accessible; this facilitates maintenance and repair work.
Dehumidified air dryer 2.1. Transport Only use for transport of the dryer a suitable hoist (e. g. a fork lift truck or a workshop crane). » Please ensure adequate carrying capacity of the lifting gear. Observe dryer weight! Note that the dryer system is top-heavy. Risc of toppling! Please observe all safety regulations for the operation of lifting gear. with a fork lift truck Push the forks up to the dryer housing. Check that the forks reach completely under the dryer housing.
Dehumidified air dryer with a workshop crane Check if the eyelets are installed on the dryer housing. If this condition is met, fasten the transport cables to the eyelets. If this condition is not met, mount the eyelets and then fasten the transport cables to the eyelets. Disassemble the eyelets after set-up.
Dehumidified air dryer 2.2. Set-up A special foundation is not required for installation. The dryer must be installed on a level surface, and may not be exposed to excessive humidity. Maximum permissible ambient temperature of the control system is 45°C. To facilitate servicing, install the dryer such that it is accessible from 3 sides. Make sure that the air filters can be changed without problems. The rear of the dryer can be placed against a wall. » The main switch must be freely accessible.
Dehumidified air dryer 2.4. Connection of the return air cooler (optional) F A return air cooler is generally required in cases in which the return air temperature is over 65°C. The return air cooler can be connected to a coolant circuit or the water mains network. Observe the water flow with connection to water mains network. The coolant circuit must be dimensioned acccordingly. Remove the side panel of the dryer. Connect the coolant intake line and coolant return line to the return air cooler.
Dehumidified air dryer 2.5. Electrical connection » Observe the rules of the local electricity board. Check that the supply voltage and the power frequency are in accordance with the data on the name plate of the device. The electrical connection may only be carried through or assigned by Colortronic service staff or by qualified staff authorized by Colortronic. Other persons are not permitted to carry through the electrical connection.
CTT 300 3. Functional description Version: 64.10-0145GB01 03/98 » This functional description is intended for all operating personnel of the equipment. Prerequisite for this functional description is general knowledge of dryers and SPS systems. Ensure in each case that the operating personnel are sufficiently informed.
CTT 300 3.1. Dryer The dryer operates with dehumidified air, i.e. the air is not only heated but also dehumidified before flowing into the drying hopper. This principle allows plastic granules to be dried to a residual moisture content as low as 0.002 % (PET granulate). The dew point temperature of the dehumidified air lies between -55°C and, depending on the set value, -35 to -28°C. The lower limiting value of the dehumidified air is about 80°C due to the intake of water in the drying cells.
CTT 300 3.2. Drying hopper (optional) The material is dried in the drying hopper. The dehumidified air (2) is forced through the material in the hopper, collecting moisture in the process. The drying hopper must be dimensioned according to its intended use to ensure that the final moisture content is attained.
CTT 300 3.3. Return air cooler (optional) F A return air cooler is generally required in cases in which the return air temperature is over 65°C. A return air cooler improves the efficiency of the drying cells. The return air cooler reduces the return air temperature to a defined value. The return air temperature is set at the operation panel. & The lower the value chosen for the return air temperature, the better the efficiency of the drying cells.
CTT 300 3.4. Hopper heaters (optional) If differing drying temperatures are required in the different drying hoppers, hopper heaters must be installed on the drying hoppers. The drying temperature of each drying hopper can be set centrally at the dryer. 3.5. Automatic motor flaps (optional) Automatic motor flaps cut off the drying hopper from the drying circuit as soon as the material is completely dried. The supplementary heating system is also switched off.
CTT 300 3.6. Connection to a pneumatic conveying system (optional) The dryer operates most effectively in conjunction with a pneumatic conveying system. This combination of dryer and conveying system ensures that sufficient material is always fed into the drying hopper. Only the amount of material required for the processing machines used is removed from the hopper. This guarantees that the final drying result remains constant.
Dehumidified air dryer 4. Start-up Version: 64.10-0130GB04 03/98 » This chapter is directed at the operators of the equipment. This chapter assumes general skills in dealing with dryers and SPS systems. This chapter assumes that the functional description has been read and understood. It should be ensured in each and every case that the operators have the relevant skills. F Note down all set values of the control system.
Dehumidified air dryer 4.1. Control system The control system is switched on at the main switch. The control system is operated via a ”selection window” and the keyboard of the operator panel. The facility’s control system is factory-programmed. Nevertheless, you have to set specific values (basic parameters) which are dependent on the processed material, for instance. The values entered are stored in the control system and remain so, even after the unit is switched off or in the event of a power cut.
Dehumidified air dryer 4.1.1. Key assignment F1-key: Leads to the table of contents. ENTER-key: Confirms the entries. ESC-key: Goes back one step in the menu. ACK-key: Activates an alarm message; to unblock the control system. Arrow keys: Move the cursor bar; switch the appliances on or off in combination with the SHIFT key; for scrolling forward or backward in a menu. SHIFT-key: Switches on the secondary functions of the keys, when the SHIFT-key has been pushed, the LED “SHIFT” is on.
Dehumidified air dryer 4.1.2.
Dehumidified air dryer 4.2. Switching on the dryer Switch on the system by means of the main switch. & The control system carries through a self-test; after that, the name of the dryer and the operation status of the unit are displayed. F Unblock the control system: Keep the ACK key pressed until the LEDs of the keys K1 - K4 light up. 4.2.1.
Dehumidified air dryer 4.3. Initial operation & Before initial operation, all control data should be set back. » This work may be carried through only by qualified personnel trained in the field of electrical engineering. 4.3.1. Setting back the control data (Re-Setting) Open the control box by means of the control box key which is part of the supply. Set the function selector (10) at ”STOP” position. Open the battery compartment (1) of the control system and take out the battery.
Dehumidified air dryer & All control data are set back to the standard settings. Set the on/off switch (4) at position ”1". Insert the battery into the battery compartment (1). Close the battery compartment (1). Set the function selector (10) at ”RUN” position. Close the control box. F Unblock the control system: Keep the ACK key pressed until the LEDs of the keys K1 - K4 light up. 4.4.
Dehumidified air dryer 4.5. Basic parameters Press the ”F1"-key. 4.5.1. Turning the devices on/off Select ”Main menu”. Acknowledge with the ENTER-key. or Press the ”F2”-key. Dryer on/off ”on” = turn dryer on, ”off” = turn dryer off. Acknowledge with the ENTER-key. Timer on/off Press the SHIFT-key and choose with the arrow-keys the desired operation: ”internal” = operation with timer (operation at OP7, see chapter timer), “external” = operation with timer (if present), ”off” = operation without timer.
Dehumidified air dryer Return air cooler on/off (optional) “on” = operation with return air cooler, “off” = operation without return air cooler Acknowledge with the ENTER-key. Hopper X on/off (optional) (X = number of the drying hopper) “on” = releasing drying hopper X, “off” = blocking drying hopper X Acknowledge with the ENTER-key. Hopper heater X on/off (optional) (X = number of the hopper heater) “on” = switch on hopper heater X, “off” = switch off hopper heater X Acknowledge with the ENTER-key.
Dehumidified air dryer 4.5.2. Entering dryer values Select ”Dryer”. Acknowledge with the ENTER-key. or Press the ”F3”-key. Drying Heater Target (optional) Enter the drying temperature of the dryer. F Observe max. drying temperature of the dryer. The drying temperature of the dryer must be selected so that it is the same as or higher than the desired hopper temperature. Turn off the dryer heating system if a lower drying heat is entered. Acknowledge with the ENTER-key. Drying Heater Act.
Dehumidified air dryer Return air cooler Target (optional) Enter the max. permissible return air temperature (65°C max.). Higher temperatures are not allowed. Acknowledge with the ENTER-key. Return air cooler Act. (optional) The current return air temperature will be displayed. & The cooling effect of the return air cooler is highly dependent on the cooler circuit. The lower the value chosen for the return air temperature, the better the efficiency of the drying cells.
Dehumidified air dryer Dew point max. Enter the maximum permissible (worst allowed) dew point temperature (-35 to 28°C). Acknowledge with the ENTER-key. Dew point Act. The current dew point temperature will be displayed. & If there is a cable break “+0 °C” is displayed. Press the ”F1"-key.
Dehumidified air dryer 4.5.3. Entering hopper values Select ”Hopper”. Acknowledge with the ENTER-key. or Press the ”F4”-key. Hopper entry X Target (X = number of the drying hopper) Enter the drying temperature for hopper flap X (when operating with supplementary heating). Acknowledge with the ENTER-key. Hopper entry X Act. (X = number of the drying hopper) The current temperature at the feed opening of hopper flap X will be displayed. & If there is a cable break “+0 °C” is displayed.
Dehumidified air dryer Granules X desired: _ % = _ °C (X = number of the drying hopper) Enter the material temperature at which the flap (optional) on the drying hopper X should close. & This value is entered in percent of the temperature on the hopper inlet. The material temperature calculated by the control system for closing the flap on the drying hopper X is displayed in °C. Confirm with the ENTER key.
Dehumidified air dryer Granules X dwelling time: _ min The dwelling time of the material within the drying hopper X is displayed in minutes. F Observe the indicated dwelling time. & When the drying hopper is released, the dwelling time starts. The residual time is displayed (= current dwelling time). If the drying hopper is blocked, the current dwelling time is reset to the value of the dwelling time which has been entered before. Press the ”F1"-key.
Dehumidified air dryer 4.5.4. Observing processing status Select ”Status”. Acknowledge with the ENTER-key. or Press the ”K1”-key. & The current operation status of individual assembly parts is displayed: e.g.: valve block moved in/moved out/error “moved in” = The upper drying cells are within the drying circuit; the lower ones are regenerated. “moved out” = The upper drying cells are regenerated; the lower ones are within the drying circuit. “error” = An error has occurred.
Dehumidified air dryer 4.5.5. Setting date and time & This function is password protected. Press the “K3"-key. Enter the password if requested. Date Press the SHIFT key. By means of the arrow keys, select the desired week-day. By means of the arrow keys, select the shown date. Press the SHIFT key. Enter the desired date. Press the ENTER key. Time Enter the desired time. Press the ENTER key. Press the ”F1”-key.
Dehumidified air dryer 4.5.6. Viewing/changing language and contrast & This function is password protected. Press the “K4"-key. Enter the password if requested. Contrast Press the SHIFT key. By means of the arrow keys, select the adjustment which suits you best. Press the ENTER key. & Depending on the outside temperature, the brightness of the screen may vary. Language Press the SHIFT key. By means of the arrow keys, select the desired language (if present). Press the ENTER key. Press the “F1"-key.
Dehumidified air dryer 4.5.7. Changing parameters Select ”Parameters”. Acknowledge with the ENTER-key. or Press the SHIFT-key and the ”K1”-key. F The values in this menu may only be changed after contacting Colortronic Service. Press the ”F1"-key.
Dehumidified air dryer 4.5.8. Setting the timer Select ”Timer”. Acknowledge with the ENTER-key. or Press the SHIFT-key and the ”F1”-key. XX ON 00:00 OFF 00:00 (XX = day Mo-Su) Enter for each day the switching on time and the switching off time. Acknowledge with the ENTER-key. & Example: Fr Sa Su Mo ON ON ON ON 08:00 00:00 20:00 00:00 OFF OFF OFF OFF 23:59 23:59 08:00 00:00 The dryer starts on Friday at 08:00 in the morning, runs through without interruption until sunday at 08:00 and switches off.
Dehumidified air dryer 4.6. Recipes (optional) Select “Recipes”. Confirm with the ENTER-key. or Press the keys “Shift” and “F3“. Hopper no. X (X = number of the drying hopper) Enter the number of the drying hopper whose recipe you want to edit. Confirm with the ENTER-key. & The hopper is displayed with the current recipe Y, Z (Y = recipe value range, Z = recipe number), drying temperature (°C) and dwelling time. Press the “↓” key. & Recipes can be modified (stored/deleted), activated or printed.
Dehumidified air dryer 4.6.1. Editing recipes Edit Press the “F2"-key. Recipe range X (X = 1 - 4) Select the recipe range. Confirm with the ENTER-key. & 99 recipes can be stored per recipe range. During initial operation, no recipes are stored. By means of the arrow keys “↓” or “↑”, select the desired recipe or enter the desired recipe number. Confirm with the ENTER-key. Drying temperature Enter the drying temperature in °C for the material in hopper X. Confirm with the ENTER-key.
Dehumidified air dryer 4.6.1.1. Storing the recipe No. Enter a recipe number. Confirm with the ENTER-key. Name Enter a name for the recipe. Confirm with the ENTER-key. Store data record? Y Confirm with the ENTER-key if you want to save the recipe. Press the ESC-key if you do not want to save the recipe. & If the recipe number has already been entered into the recipe memory, a security prompt is carried through. 4.6.1.2.
Dehumidified air dryer 4.6.2. Activating the recipe Press the keys “Shift” and “F3“. Hopper no. X (X = number of the drying hopper) Enter the number of the drying hopper whose recipe you want to activate. Confirm with the ENTER-key. Press the “↓” key. Transfer Press the “F3"-key. Recipe range X (X = 1 - 4) Select the recipe range. Confirm with the ENTER-key. Source Enter the recipe number or press the SHIFT-key and select the desired recipe by means of the arrow keys “↓” or “↑”, respectively.
Dehumidified air dryer Destination Enter “0" if you want to activate the recipe. Confirm with the ENTER-key. & Enter a number between 1 and 99 if you want to store the recipe under a new recipe number. Assumption Confirm with the ENTER-key in order to transfer the recipe to the control system. & When the recipe has been transferred, a “*” is displayed. OP: X (X = 1 - 4) The recipe range is displayed. Press the “F1"-key.
Dehumidified air dryer 4.6.3. Printing recipes F Make sure that a printer (optional) has been connected and is switched on. Press the keys “Shift” and “F3“. Press the “↓” key twice. Select the recipe range (1-4) and press the key “F2" (= recipe range 1 and 3) or ”F3" (= recipe range 2 and 4), respectively. F The recipes are printed. Press the “F1"-key.
Dehumidified air dryer 4.7. Starting continuous operation When you have carried through all basic settings, you can start with continuous operation. & For initial operation: set back the control data (Re-Setting and unblock the control system. Make sure that hoppers which are not in use are separated from the dehumidified air supply. Make sure that the set drying temperatures are suited for the materials in the hoppers. After first filling, do not process the material until after the dwelling time.
Dehumidified air dryer 4.8. Alarm Messages & Alarm messages are displayed in plain language on the screen of the operator device. The display of alarm messages in the operator device can only be erased by pressing the ”ACK” key. The failure is not repaired. A failure is given by flashing of the LED “alarm”. If the alarm message is acknowledged by pressing of the “ACK” key, but the failure is not yet eliminated, the flashing changes to steady light.
Dehumidified air dryer View Press the ”F2"-key. All alarm messages with their numbers (see Texts), date, time and the supplement ”K”, ”G”, or ”Q” are displayed. & ”K” = coming (a failure occured) ”G” = going (the resent for the failure has gone) ”Q” = reset (the display of the alarm message in the operator device has been erased by pressing the ”ACK”-key) Press the ESC-key. Print (Optional) & This function is password protected. F Make sure that a printer is connected and switched on.
Dehumidified air dryer Number Press the ”F2"-key. Total messages The number of all alarm messages is displayed. Waiting messages The number of current alarm messages is displayed. Press the ESC-key. Delete Press the ”F3"-key. & This function is password protected (Colortronic service). Press the ENTER-key for deleting the messages. Press the ESC-key. Press the “↓” key.
Dehumidified air dryer Overflow Press the ”F2"-key. & If there are more current alarm messages than can be saved, a warning message (= residual buffer reached) may be given. This function is password protected (Colortronic service). Overflow warning On/Off Press the SHIFT-key. By means of the arrow keys, select ”on” if a warning message is to be given. By means of the arrow keys, select ”off” if no warning message is to be given. Press the ENTER-key. Press the ESC-key.
Dehumidified air dryer Text Press the ”F3"-key. All possible alarm messages are displayed with their numbers (see Viewing). For viewing the possible alarm messages, press the arrow keys: PLC (= SPS) Battery is Empty Replace the SPS battery. Main Switch is Off The main switch has been placed in the off position. The safety temperature limiter of the drying or the regeneration heater, respectively, has been activated. The safety temperature limiter of a hopper heater has been activated. Error valve block.
Dehumidified air dryer Vacuum Regeneration Blower The regeneration blower does not produce sufficient pressure. Check the blower. Vacuum sensor defective. The Safety Switch Drying Blower Has Been Actuated Check the blower. Check the fuses. Short circuit check of the blower. Vacuum Drying Blower The drying blower does not produce sufficient pressure. Check the blower. Vacuum sensor defective. Temperature Measurement Regeneration Heater Defective Check the cables and the sensor. Check the power supply.
Dehumidified air dryer The Safety Switch Regeneration Heater Has Been Actuated Check the heater. Check the fuses. Short circuit check of the heater. Error Bypass Flap The bypass flap does not close or closes too slowly. Check the bypass flap. Error Valve Block The valve block has not reached the proper position. The main switch is placed in the off position. Check the position of the valve block. Press the “ACK” key and put the main switch in the on position immediately.
Dehumidified air dryer Excess Temperature Drying Heater The drying temperature is too high. Check the safety temperature limiter. Colortronic Service. Insufficient Temperature Drying Heater The drying temperature is too low. Check the drying heater. Safety Switch Drying Heater Check the heater. Check the fuses. Short circuit check of the heater. Temperature Measurement Heater Defective Hopper X (X = number of the drying hopper) Check cables and sensor. Check the power supply. Short circuit check.
Dehumidified air dryer Safety Switch Heater Hopper X (X = number of the drying hopper) Check the heater. Check the fuses. Short circuit check of the heater. Temperature Measurement Granules Defective Hopper X (X = number of the drying hopper) Check cables and sensor. Check the power supply. Short circuit check. Excess Temperature Granules Hopper X (X = number of the drying hopper) The material temperature is too high. Check the heater. Check the throttle valve.
Dehumidified air dryer 4.9. Viewing system runtime Select ”System runtime”. Acknowledge with the ENTER-key. or Press the SHIFT-key and the ”F2”-key. System runtime XX h YY min & The runtime of the blowers is shown in hours and minutes.
Dehumidified air dryer 4.10. Switching the dryer off Select ”Main menu”. Acknowledge with the ENTER-key. or Press the ”F2”-key. Select ”Dryer off”. Acknowledge with the ENTER-key. L Wait until the regeneration phase is finished and the blower has come to a standstill. Switch off the dryer at the main switch. Disconnect the power supply. F Never switch off the dryer directly at the main switch.
CTT 300 5. Maintenance Version: 64.10-0146GB01 03/98 » This chapter is intended for persons with skills in electrical and mechanical areas due to their training, experience and received instructions. Personnel using the instructions in this chapter must be instructed of the regulations for the prevention of accidents, the operating conditions and safety regulations and their implementation. Ensure in each case that the personnel are informed. For maintenance work taking place at heights of over approx.
CTT 300 L Disconnect the equipment from mains supply before starting maintenance procedures to ensure that it cannot be switched on unintentionally. Depressurize all compressed air piping of the equipment before starting maintenance work. F Please observe the maintenance schedule. Before starting maintenance work, clean the equipment of oil, fuel or lubricants.
CTT 300 5.1.
CTT 300 5.2. Cleaning/renewing the air filters Press the ”F2”-key. Select ”Dryer off”. Acknowledge with the ENTER-key. L Wait until the blowers have stopped turning. Switch off the dryer at the main switch. Disconnect the power supply. F Open the upper left-hand panel (seen from the front) by means of the provided switch cabinet key. & Clogged filters reduce the volume of circulating air to a substantial degree and result in decreased dryer efficiency.
CTT 300 Return air filter Loosen the securing nut on the return air filter housing and remove the housing lid. Return air filter Regeneration air filter Remove the return air filter. Clean the return air filter with compressed air from inside to out or renew the filter. Never knock the return air filter on the floor. Clean the return air filter housing. Use lint-free cleaning rags. Re-install the cleaned/new return air filter. Mount the lid and fasten the securing nut. Close the panel.
CTT 300 Regeneration air filter Loosen the securing nut on lid of the regeneration air filter. Remove the lid and regeneration air filter housing. Loosen the two wing nuts. Remove the circular grid. Remove the filter mat. Blow through the filter mat with compressed air from the inside to the outside, or renew the filter. Re-install the cleaned/new filter. Replace the circular grid. Fasten the two wing nuts on. Replace the regeneration air filter housing and the lid of the regeneration air filter.
CTT 300 Filter of the electrical cabinet Remove the lid of the filter. Remove the filter mat. Blow through the filter mat with compressed air from inside to outside or renew the filter mat. Clean the filter housing. Use lint-free cleaning rags. Re-install the cleaned/new filter mat. Replace the lid of the filter. F Never operate the dryer without filter mat.
CTT 300 5.3. Tensioning the V-belts Press the ”F2”-key. Select ”Dryer off”. Acknowledge with the ENTER-key. L Wait until the blowers have stopped turning. Switch off the dryer at the main switch. Disconnect the power supply. F Open the upper left-hand panel (seen from the front) by means of the provided switch cabinet key.
CTT 300 & Order number V-belts blower ”regeneration heater”: ID 93741 blower ”drying heater”: ID 83993 blower ”regeneration heater” blower ”drying heater” CTT 300 Maintenance 5-9
CTT 300 Blower ”regeneration heater” 1 6 2 3 5 4 3 Remove the protective grid of the blower (position 3). Loosen the nut (position 1). Loosen and remove the screw (position 2). Slide motor with carrier flange plate (position 6) towards the carrier flange housing (position 4). Tension the V-belts by means of screw (position 2) until the belts (position 5) can be pressed in by approx. 3 mm (pressure: 25 N). Tighten the nuts on threaded bolt (position 1) again.
CTT 300 Blower ”drying heater” 1 6 2 3 5 4 3 Remove the protective grid of the blower (position 3). Loosen the nut (position 1). Loosen and remove the screw (position 2). Slide motor with carrier flange plate (position 6) towards the carrier flange housing (position 4). Tension the V-belts by means of screw (position 2) until the belts (position 5) can be pressed in by approx. 3 mm (pressure: 25 N). Tighten the nuts on threaded bolt (position 1) again.
CTT 300 5.4. Disposing of the drying agent Ensure that drying cells are exchanged by Colortronic or refilled only when empty. Drying agents must be disposed of in accordance with all official regulations. Used drying agents are to be disposed of as hazardous waste, as it may be contaminated with foreign substances from the materials dried in the system. F Used drying agents or drying cells containing used drying agent cannot be returned to Colortronic.
CTT 300 5.5. Changing the battery of the control system » F This work may be carried through only by qualified personnel trained in the field of electrical engineering. The battery may be changed only with the control system switched on. Open the control box by means of the control box key which is part of the supply. Push down the slide valve of the door to the battery compartment. Open the door outwards. Pull the end of the plastic band outwards. & The battery slides from the support and falls out.
CTT 300 Insert the new battery into the battery compartment. F Note the polarity on the back wall of the battery compartment. Make sure that the plastic band is located to the left of the battery so that its end is freely accessible. Before inserting the battery, charge it for two hours with 100 Ω (depassivate). Close the door and lock it by means of the slide valve. Close the control box.
CTT 300 6. Technical Data Version: 64.10-0147GB01 03/98 Volume of dehumidified air: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300 m3/h Operation voltage:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400 V/3 AC/PEN/50 Hz Special voltage possible Connected load*: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . approx. 15.0 kW * without hopper heater Califoric output (regeneration): . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.
CTT 300 Electrical cabinet: Width*: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 700 mm Height*: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1800 mm Depth*: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400 mm *incl. expansion Control sub-assembly Central sub-assembly: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CTT 300 Dimension sheet 198O PE 64.10-0132GB01 06/98 78O 1010 Dimensions in mm. Specifications may be subject to alterations.
CTT 300 7. Spare parts list Version: 64.10-0148GB01 03/98 » This spare parts list is intended to be used only by trained personnel. Other persons are not permitted to modify or repair the equipment.
CTT 300 CTT 300 19264 Drying heater (complete) 95828 Tubular heating element 230 V, 3 kW 85276 STB (drying) 160-250 °C 86363 Spindle motor 24 V 19267 Regeneration heater (complete) 85275 STB (regeneration) 360-500 °C 94013 Tubular heating element 230 V, 2 kW 87788 93741 High-pressure blower HRD 1/2, 0,5 kW, 400 V/50 Hz V-belt High-pressure blower for special voltage on request 87787 83993 High-pressure blower HRD 1/5, 1,1 kW, 400 V/50 Hz V-belt High-pressure blower for special voltage on re
CTT 300 86371 Multiplier Pt 100 (3 m) 89846 Multiplier Pt 100 (6 m) 93303 Multiplier PT 100 (9 m) 86387 Multiplier PT 100 (12 m) 95819 Pull-button 85682 Micro-switch 28257 85590 Control system 400 V/3 AC/50 Hz (complete) Control-system for special voltageon request Battery S5-95U 85219 Cooling appliance (optional) Return air coler (optional) 29787 87099 84503 88226 Return air coler Solenoid valve 24 V Temperature converter Filter cartridge, temperature-proof (if a return air cooler is in us
Dehumidified air dryer 8. Electrical manual Version: 64.10-0133GB01 10/97 » This electrical manual is intended to be used only by Colortronic service personnel and trained personnel authorized by Colortronic. Other persons are not permitted to modify or repair the equipment.
Dehumidified air dryer 9. Accessories Version: 64.
