American Dryer Corp. ML-78 User's Manual
Contents
1. 3 B Safety Precautions oae oe Nine at un e Ce med E Re ds 4 SECTION II SPECIFICATIONS and DIMENSIONS eee ee eee eee eee sees sees ee esee esses se ensssus 6 A Specificato NS saoudite cts De id dune dux 6 B Component Identification oco verse leva rui epe a 8 SECTION III INSTALLATION REQUIREMENTS ee eee esee sooo sooo e ooo ee oe ee ee eee eee 10 A Location PR equiremeris Dinan tae dietis bea 10 Seti GW ions H 11 Cc Dryer Enclosure a ca sabe 12 D PreshoAOr SUDDIV sott cis aen an aa e dag aec en PL 13 E Requitermenis o ebat Ane tanh obsedit a At t ct 15 F Electrical aid n ade redet te ententes ans 19 G Gas Infor ial oto a d fu o d uo eid tunes datum nd este 26 Stan Ta OPTI ATION gs Se Seed kde Saas adele a natty nt 30 I Preparation For Operation Start up tede itte tip dei dri etti diis 35 J E inde nn ans he E E aeS E 36 K Preoperanonal Ins estt Pince ido abd e 38 L Shut Don USCC OMS cr 39 SECTION IV SERVICE PARTS INFORMATION ccccs2. 3 Phase 39 Wiring Connections Hookup for REVERSING MODELS ONLY The electrical connections on ALL 3 phase 39 gas model and steam model dryers are made into the rear service box located at the upper left area of the dryer Electrical connections for electrically heated dryers are made in the electric oven area located at the upper rear area of the dryer NOTE A CIRCUIT SERVING EACH DRYER MUST BE PROVIDED If local codes permit power to a gas or steam dryer can be made by the use of a flexible U L listed power cord pigtail wire size must conform to rating of dryer or the dryer can be hard wired directly to the service breaker panel In ALL cases a strain relief must be installed where the wiring enters the dryer The only electrical input connections to the dryer are the 3 phase 39 power leads L1 L2 L3 andsometimes neutral and ground Single phase 1 power for the control circuit is done internally to the dryer No single phase 19 input connection is required on a 3 phase 3 dryer For gas model and steam model dryers manufactured for operation at 3 phase 39 the electrical connections are made at the power distribution block located in the service box at the rear upper left corner of the dryer The ground connection is made to the copper lug also provided in this box To gain access to the service box contactor the service box cover must be removed x m
3. i ae D X ANC ROOF SEE NOTE 20 g BN 2 usse A 42 INCH DIAME E d p O INCH DIAMETE fINIMU gt D D H SEE NOTE B Yi 72 L3 VO x T den RS J IMPORTANT For extended duct work runs the cross section area of the duct work can only be increased to an extent When the duct work approaches the maximum limits noted in this manual a professional heating venting air conditioning HVAC firm should be consulted for proper venting information ALL duct work should be smooth inside with no projections from sheet metal screws or other obstructions which will collect lint When adding ducts the duct to be added should overlap the duct to which it is to be connected ALL duct work joints must be taped to prevent moisture and lint from escaping into the building Inspection doors should be installed at strategic points in the exhaust duct work for periodic inspection and clean out of lint from the duct work NOTE Where the exhaust duct passes through a wall ceiling or roof made of combustible materials the opening must be 2 inches larger all the way around than the duct The duct must be centered within this opening a Outside Duct Work Protection 1 To protect the outside end of horizontal duct work from the weather a 90 elbow bent downward should be installed where the exhaust exits the building If the duct work travels vertically up through the roof
4. NEZ GAS NATURAL 204 000 Ns 35 IN WC FOR USE WITH GASES ANSI Z215 2 LATEST EDITION CLOTHES DRYER xFOR CANADIAN INSTALLATIONS WITH ELEVATIONS BETWEEN 2 000 AND 4 500 F HEAT INPUT ORIFICE SIZE e EU NC UU PPROVED P N 112008 Ne Se d When contacting American Dryer Corporation certain information is required to in sure proper service parts information from ADC This information is on the data label that is located in the left inside front side panel as shown in the illustration above When contacting ADC please have the model number as well as the serial number readily available 46 THE DATA LABEL 1 MODEL DRYER The model number is an ADC number which describes the size of the dryer and the type of heat gas electric or steam 2 SERIAL NUMBER The serial number allows ADC to gather information on your particular dryer 3 MANUFACTURING CODE NUMBER The manufacturing code number is a number issued by ADC which describes ALL possible options on your particular model 4 TYPE OF HEAT The type of heat describes the type heat for your particular dryer gas either natural gas or liquid propane L P or steam 5 HEAT INPUT for GAS DRYERS This describes the heat input in British Thermal Units per Hour BTUH 6 ORIFICE SIZE for GAS DRYERS Gives the number drill size used 7 ELECTRIC SERVICE This describes the electric service for your particular model 8 GAS MANIFO
5. RETURN CHECK VALV y L DIR 5 Le 6 MAN3508 NVERTED BUCKET STEAM TRAP STEAM DAMPER SYSTEM 3l 4 Steam Damper Air System Connections The MLS 78 is manufactured with a pneumatic piston damper system which requires an external supply of compressed air The air connection is made to the steam damper solenoid valve which is located at the rear inner top area of the dryer just in front of the electric service relay box 090 2497 a Requirements Normal Minimum Supply Maximum Supply b Air Connection Air connection to system 1 8 inch N P T c No air regulator or filtration is provided with the dryer External regulation filtration of 80 psi must be provided It is suggested that a regulator filter gauge arrangement be added to the compressed air line just before the dryer connection This is necessary to insure that correct and clean air pressure is achieved 32 5 Steam Damper System Operation The MLS 78 steam damper shown in Diagram 1 in the illustration below allows the coil to stay constantly charged eliminating repeated expansion and contraction When the damper is opened the air immediately passes through the already hot coil providing instant heat to start the drying process When the damper is closed ambient air is drawn directly into the basket tumbler allowing a rapid cool down Di
6. a STEAM MODELS discontinue the steam supply 1 SHUT OFF external location furnished shut off valve 2 SHUT OFF internal steam valves in the supply lines and the return lines 39 SECTION IV SERVICE PARTS INFORMATION A SERVICE 1 Service must be performed by a qualified trained technician service agency or gas supplier If service is required contact the distributor from whom the ADC equipment was purchased If the distributor cannot be contacted or is unknown contact the ADC Service Department for a distributor in your area B PARTS 1 Replacement parts should be purchased from the distributor from whom the ADC equipment was purchased If the distributor cannot be contacted or is unknown contact the ADC Parts Department for a distributor in your area Parts may also be purchased directly from the factory by calling the ADC Parts Department at 508 678 9010 or you may FAX in your order at 508 678 9447 NOTE When ordering replacement parts from the ADC dealer or the ADC factory be sure to give them the correct model number and serial number so that your parts order can be processed in an expeditious manner 40 SECTION V WARRANTY INFORMATION A RETURNING WARRANTY CARD S 1 Before any dryer leaves the ADC factory test area a warranty card ADC Part No 112254 is placed on the back side of the main door glass These warranty cards are intended to serve the customer where we record the indi
7. IMPORTANT DO NOT use screens or caps on the outside of opening of exhaust duct work ERTICAL DUCTIN HORIZONTAL DUCTING 2 x D CLEARANC 4777 SEE NOTE 2277777777771 pum SEE NOTE NOTE OPENING MUST B WO 2 INCHES AL E AROUND THE DUCT ARGER THAN DUC ALL THE WAY MUST BE CENTE WITHIN THIS OPENING ERED MANO73 2 Single Dryer Venting Where possible it is suggested to provide a separate exhaust duct for each dryer The exhaust duct should be laid out in such a way that the duct work travels as directly as possible to the outdoors with as few turns as possible It is suggested that the use of 90 turns in the ducting be avoided use 30 and or 45 angles instead The shape of the exhaust duct work is not critical so long as the minimum cross section area is provided IMPORTANT Minimum duct size for a dryer that is vented horizontally is 10 inches for a round duct or an equivalent of 80 square inches THE DUCT SIZE MUST NOT BE REDUCED ANYWHERE DOWN STREAM OF THE DRYER IMPORTANT Exhaust back pressure measured by a manometer at each basket tumbler exhaust duct area should not exceed 0 3 inches of water column 16 IMPORTANT Minimum duct size for a dryer that is vented vertically is 12 inches for a round duct or an equivalent of 120 square inches THE DUCT SIZE MUST NOT BE REDUCED ANYWHERE DOWN STREAM OF THE DRYER Y N HORIZONTAL
8. ML 78 Gas Electric Steam Installation Manual WARNING For your safety the information in this manual must be followed to minimize the risk of fire or explosion or to prevent property damage personal injury or death AVERTISSEMENT Assurez vous de bien suivre les instructions donn es dans cette notice pour r duire au minimum le risque d incendie ou d explosion ou pour viter tout dommage mat riel toute blessure ou la mort Do not store or use gasoline or other flammable vapor and liquids in the vicinity ofthis or any other appliance pas entreposer ni utiliser d essence ni d autres vapeurs ou liquides inflammables dans le voisinage de cet appareil ou de tout autre appareil WHAT DO YOU DO IF YOU SMELL GAS QUE FAIRE SI VOUS SENTEZ UNE ODEUR Do not try to light any appliance DEGAZ Do not touch any electrical switch do not use any phone in your building Nepastenter d allumer d appareil Clear the room building or area of all occupants Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s Netouchez aucun interrupteur Ne pas vous servir des t l phones se trouvant dans le b timent vous vous trouvez vacuez la pi ce le b timent ou la zone instructions Appelez imm diatement votre fournisseur de If you cannot reach your gas supplier call the gaz depuis un voisin Suivez les instructions fire department du fournisseur Si vous ne pouvez
9. IMPORTANT Coil failure due to improper PH level will VOID THE WARRANTY 2 Steam Requirements High Pressure Inlet 1 supply line connection qty one 1 at top manifold Return 1 return line connection qty one 1 at bottom manifold Operating Steam Pressure Maximum 125 psig Minimum 100 psig Heat Input Normal Load 7 Bhp Consumption approximate 239 Ibs hr 3 Installation Instructions To insure an adequate supply of steam is provided be sure that the steam lines and steam return lines are sized and laid out as stipulated in this manual Inadequate steam lines and steam return lines or improper steam plumbing will result in poor performance and can cause component failure Clean dry steam must be provided to the dryer IMPORTANT Steam coil failure due to water hammer by wet steam will VOID THE WARRANTY a The pressure of the condensate in the steam supply will cause water hammer and subsequent heat exchanger steam coil failure The steam supply connection into the main supply line must be made with a minimum 12 inch riser This will prevent any condensate from draining towards the dryer b The steam supply piping to the dryer must include a 12 inch rise along with a drip trap and check valve This will prevent any condensate from entering the steam coil 30 Flexible hoses or couplings must be used The dryer vibrates slightly when it runs and this will cause the steam
10. S STRAI TO IMPELLOR 25 GAS INFORMATION It is your responsibility to have ALL plumbing connections made by a qualified professional to assure that the gas plumbing installation is adequate and conforms with local and state regulations or codes In the absence of such codes ALL plumbing connections materials and workmanship must conform to the applicable requirements of the National Fuel Gas Code ANSI Z223 1 LATEST EDITION IMPORTANT Failure to comply with these codes or ordinances and or the requirements stipulated in this manual can result in personal injury and improper operation of the dryer The dryer and its individual shut off valves must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1 2 psig 3 5 kPa The dryer must be isolated from the gas supply piping system by closing its individual manual shut off valve during any pressure test of the gas supply system at test pressures equal to or less than 1 2 psig 3 5 KPa WARNING FIRE or EXPLOSION COULD RESULT 1 Gas Supply The gas dryer installation must meet the American National Standard National Fuel Gas Code ANSI Z223 1 LATEST EDITION as well as local codes and ordinances and must be done by a qualified professional NOTE Undersized gas piping will result in ignition problems slow drying increased use of energy and can create a safety hazard The dryer
11. Z223 1 LATEST EDITION and or National Electric Code ANSI NFPA NO 70 LATEST EDITION A LOCATION REQUIREMENTS Before installing the dryer be sure the location conforms to local codes and ordinances In the absence of such codes or ordinances the location must conform with the National Fuel Gas Code ANSLZ223 1 LATEST EDITION 1 The dryer must be installed on a sound level floor capable of supporting its weight It is recommended that carpeting be removed from the floor area that the dryer is to rest on 2 The dryer must not be installed or stored in an area where it will be exposed to water and or weather 3 The dryer is for use in noncombustible locations 4 Provisions for adequate air supply must be provided as noted in this manual refer to Fresh Air Supply in Section D 5 Clearance provisions must be made from combustible construction as noted in this manual refer to Dryer Enclosure Requirements in Section C 6 Provisions must be made for adequate clearances for servicing and for operation as noted in this manual refer to Dryer Enclosure Requirements in Section C 7 Dryer must be exhausted to the outdoors refer to Exhaust Requirements in Section E 8 Dryer must be located in an area where correct exhaust venting can be achieved as noted in the manual refer to Exhaust Requirements in Section E IMPORTANT Dryer should be located where a minimum amount of exhaust duct will be necessary 10 B UNPACKING SETTING
12. a minimum of four 4 inches and must not extend more than four 4 inches to the rear of the front The bulkhead facing must not be closed in all the way to the top of the dryer A one 1 inch clearance is required SEEKER EKER Sn SKER una un anu eaN NN aN BORER RRR RKP RK RRR NRK KK KKK HS oO KKK KKK KK KKK KKH NK NH IQ CRIER RSR RSR SPR RENNES 4 N ISERE KKK RRR RK SRR OQ OR OR ERR KY 12 RRR KKK KN 12 lt Y SERRE ES RRRS i RRRS BRK KKK KN IY 0006050000 HHH LLS XX XXX XXX XXX XXX RS Rs 9000060605 Sh LIS 0 4 RRL Le MAX 4 7 22625202S CCE D EE SR S E TN C EN Bes Rees 0000000006 N N Nee N 00000606 E 000000666 e RRS 7 Re 7 RS y Ae P A B 1 ie ET 7 N 24 N NOTE Allowances must be made for opening the control door Dryers may positioned side wall to side wall However a 1 16 minimum allowance must be made for opening and closing of the control door and the lint door It is suggested that the dryer be
13. before they are signed for If there is suspected damage or actual damage the trucker s receipt should be so noted If the dryer is damaged beyond repair it should be refused Those dryers which were not damaged in a damaged shipment should be accepted but the number received and the number refused must be noted on the receipt If you determine that the dryer was damaged after the trucker has left your location you should call the delivering carrier s freight terminal immediately and file a claim The freight company considers this concealed damage This type of freight claim is very difficult to get paid and becomes extremely difficult when more than a day or two passes after the freight was delivered It is your responsibility to file freight claims Dryer parts damaged in transit cannot be claimed under warranty Freight claims are the responsibility of the consignee and ALL claims must be filed at the receiving end ADC assumes no responsibility for freight claims or damages If you need assistance in handling the situation please contact the ADC Traffic Manager at 508 678 9000 IMPORTANT The dryer must be transported and handled in an upright position at all times B SAFETY PRECAUTIONS WARNING For your safety the information in this manual must be followed to minimize the risk of fire or explosion or to prevent property damage personal injury or loss of 1 DO NOT store or use gasoline or other flammabl
14. have been preprogrammed into the microprocessor controller computer for 120 seconds spin time and a 5 second dwell stop time 2 Spin Times and Stop Times are adjustable in the Manual timed Mode b Dual Timer Models 1 Both dwell stop time and basket tumbler spin time are adjustable refer to the illustration on page 45 8 Check to insure that ALL set screws i e tumbler drive idler etc are tight K PREOPERATIONAL INSTRUCTIONS 1 To start the dryer a Microprocessor computer dryers 1 The L E D light emitting diode display will read FILL 2 Press the E on the touchpad of the keyboard 3 The L E D display will quickly show Ld30 F180 The dryer will start and the L E D display will show dr30 Refer to the User s Manual for detailed operating instructions b Dual Timer dryers 1 Turn drying timer knob for a time of 20 minutes 2 Select High Temp 3 Push Push To Start switch 4 To stop dryer open the main door 36 L SHUT DOWN INSTRUCTIONS If the dryer is to be shut down taken out of service for a period of time the following MUST BE performed 1 Discontinue power to the dryer either at the external disconnect switch or the circuit breaker 2 Discontinue the heat supply a GAS MODELS discontinue the gas supply 1 SHUT OFF external gas supply shut off valve 2 SHUT OFF internal gas supply shut off valve located in the gas valve burner area
15. positioned about two 2 feet away from the nearest obstruction for ease of installation maintenance and service to be measured from the back guard Refer to the illustration above for details NOTE Air considerations are important for proper and efficient operation 12 IMPORTANT IMPORTANT Even though a minimum of only 12 inches is required 18 inches or more is suggested The additional clearance is advantageous for ease of installation and service When fire sprinkler systems are located above the dryers a minimum of 18 inches above the dryer console module is required Dryers may be positioned side wall to side wall however a 1 16 minimum allowance is required between dryers or wall for ease of installation and maintenance Allowances must be made for the opening and closings of the control door and the lint door D FRESH AIR SUPPLY When the dryer is operating it draws in room air heats it passes this air through the basket tumbler and exhausts it out of the building Therefore the room air must be continually replenished from the outdoors If the make up air is inadequate drying time and drying efficiency will be adversely affected Ignition problems and sail switch fluttering problems may result as well as premature motor failure from overheating Air supply make up air must be given careful consideration to assure proper performance of each dryer An unrestricted source of air is necessary for ea
16. rejoindre le fournisseur Installation and service must be performed by a de gaz appelez le service des incendies qualified installer service agency or the gas supplier L installation et l entretien doivent tre assur s par un installateur ou un service d entretien qualifi ou par le fournisseur de gaz For replacement parts contact the distributor from which the dryer was purchased or American Dryer Corporation 88 Currant Road Fall River MA 02720 4781 Telephone 508 678 9000 Fax 508 678 9447 E mail techsupport amdry com American Dryer Corp 010998JEV tf ADC Part No 113029 Retain This Manual In A Safe Place For Future Reference American Dryer Corporation products embody advanced concepts in engineering design and safety If this product is properly maintained it will provide many years of safe efficient and trouble free operation ONLY qualified technicians should service this equipment OBSERVE ALL SAFETY PRECAUTIONS displayed on the equipment or specified in the installation operator s manual included with the dryer The following FOR YOUR SAFETY caution must be posted near the dryer in a prominent location FOR YOUR SAFETY POUR VOTRE S CURIT Do not store or use gasoline or Ne pas entreposer ni utiliser d essence other flammable vapors or liquids ni d autres vapeurs ou liquides in the vicinity ofthis or any other inflammables dans le voisinage de cet appliance appareil ou de yo
17. screen and replace if torn NOTE The frequency of cleaning the lint screens can best be determined from experience at each location WEEKLY Clean lint accumulation from the lint chamber thermostat and microprocessor temperature sensor sensor bracket area 43 STEAM DRYERS Clean the steam coil fins Suggest using compressed air and a vacuum cleaner with brush attachment NOTE When cleaning steam coil fins be careful not to bend the fins 1f the fins are bent straighten by using a fin comb which is available from any local air conditioning supply house 90 DAYS 1 Remove lint from around basket tumbler drive motors and surrounding areas 2 Remove lint from gas valve burner area with a dusting brush or vacuum cleaner attachment 3 Clean any lint accumulation in and around both the blower and drive motor casing openings EVERY 6 MONTHS Inspect and remove lint accumulation in customer furnished exhaust duct work system and from dryers internal exhaust ducting NOTE THE ACCUMULATION OF LINT IN THE EXHAUST DUCT WORK CAN CREATE A POTENTIAL FIRE HAZARD NOTE DO NOT OBSTRUCT THE FLOW OF COMBUSTION and VENTILATION AIR CHECK CUSTOMER FURNISHED BACK DRAFT DAMPERS IN THE EXHAUST DUCT WORK INSPECT and REMOVE ANY LINT ACCUMULATION WHICH CAN CAUSE THE DAMPER TO BIND or STICK NOTE A back draft damper that is sticking partially closed can result in slow drying and shut down of heat circuit safety switches or ther
18. with state and local codes In the absence of these codes grounding must conform to applicable requirements of the National Electric Code ANSI NFPA NO 70 LATEST EDITION The ground connection may be to a proven earth ground at the location service panel For added personal safety when possible it is suggested that a separate ground wire no 18 minimum be connected from the ground connection of the dryer to a grounded cold water pipe DO NOT ground to a gas pipe or hot water pipe The grounded cold water pipe must have metal to metal connection all the way to the electrical ground If there are any non metallic interruptions such as a meter pump plastic rubber or other insulating connectors they must be jumped out with no 4 copper wire and securely clamped to bare metal at both ends IMPORTANT For personal safety and proper operation the dryer must be grounded Provisions are made for ground connection in each dryer at the electrical service connection area 4 Electrical Connections NOTE A wire diagram is located in the front electrical control box for connection data a GAS MODELS and STEAM MODELS ONLY NOTE A CIRCUIT SERVING EACH DRYER MUST BE PROVIDED 1 Single phase 18 Wiring Connections Hookup The electrical connections on ALL single phase 19 gas models and steam model dryers are made into the rearservice box located at the upper left area of the dryer 21 Connect L1 and L2 to the power block and gro
19. 1 Electrical Requirements It is your responsibility to have ALE electrical connections made by a properly licensed and competent electrician to assure that the electrical installation is adequate and conforms with local and state regulations or codes In the absence of such codes ALL electrical connections material and workmanship must conform to the applicable requirements of the National Electrical Code ANSI NFPA NO 70 LATEST EDITION IMPORTANT Failure to comply with these codes or ordinances and or the requirements stipulated in this manual can result in personal injury or component failure NOTE Component failure due to improper installation will VOID THE WARRANTY Each dryer should be connected to an independently protected branch circuit THE DRYER MUST BE CONNECTED WITH COPPER WIRE ONLY DO NOT use aluminum wire which could cause a fire hazard The copper conductor wire cable must be of proper ampicity and insulation in accordance with electric codes for making ALL service connections NOTE The use of aluminum wire will VOID THE WARRANTY IMPORTANT separate circuit servicing each dryer must be provided 19 2 Electrical Service Specifications MLG 78 Gas MLS 78 Steam ELECTRIC SERVICE SPECIFICATIONS PER DRYER IMPORTANT 208 VAC and 240 VAC ARE NOT THE SAME When ordering specify exact voltage NOTE A Fuse ratings are dual element time delay current limiting class or RK5 ONLY
20. B Circuit breakers are thermal magnetic industrial type ONLY For others calculate verify correct breaker size according to appliance amp draw rating and type of breaker used C Circuit breakers for 3 phase dryers must be 3 pole type SERVICE PHASE WIRE gin MINIMUM DUNG CIRCUIT VOLTAGE SERVICE DRAW WIRE SIZE Time Delay BREAKER 120 60Hz 1g 2 13 10 20 25 208 60 Hz 1g 2 8 14 12 15 208 60 Hz 39 3 5 14 8 15 240 50 60 Hz 1g 2 7 14 10 15 240 50 60 Hz 39 3 5 14 8 15 380 400 50 Hz 39 3 3 14 5 15 416 50 Hz 39 3 3 14 5 15 460 60 Hz 39 3 3 14 5 15 IMPORTANT The dryer must be connected to the electric supply shown on the data label that is affixed to the back of the dryer at the upper right hand corner In the case of 208 240 the supply voltage must match the electric service specifications ofthe data label exactly IMPORTANT The wire size must be properly sized to handle the related current WARNING 208 VAC and 240 VAC ARE NOT THE SAME Any damage done to dryer components due to improper voltage connections will automatically VOID THE NOTE Forelectrically heated models contact factory for electrical service specifications NOTE ADC reserves the right to make changes in specifications at any time without notice or obligation 20 3 Grounding A ground earth connection must be provided and installed in accordance
21. ENT IDENTIFICATION SPECIFICATIONS BASKET TUMBLER DIAMETER BASKET TUMBLER DEPTH BASKET TUMBLER MOTOR Door OPENING DIAMETER BASKET TUMBLER VOLUME 44 1 2 24 7 8 1 HP 31 3 8 22 4 DRYERS PER 20740 CONTAINER Dryers PER 45748 Truck 113 cm 63 2 cm 746 kw 79 7 cm 634 cu m 10 20 24 24 VOLTAGE AVAILABLE 120 208 240 480v 1 36 50 60Hz APPROX WEIGHT UNCRATED 895 Ibs 407 kg APPROX WEIGHT CRATED 950 Ibs 432 kg Hear Ineur 204 000 btu hr 51 408 kcal hr AIRFLOW 1 200 cfm 33 98 cmm Inlet Pipe Size 3 4 1 91 cm VOLTAGE AVAILABLE 120 208 240 480v 1 36 50 60Hz 8 APPROX WEIGHT UNCRATED 895 Ibs 407 kg 2 APPROX WEIGHT CRATED 950 165 432 AIRFLOW 1 200 cfm 33 98 cmm VOLTAGE AVAILABLE 120 208 240 480v 1 36 50 60Hz APPROX WEIGHT UNCRATED 980 Ibs 445 kg APPROX WEIGHT CRATED 1 130 Ibs 514 kg AIRFLOW 1 200 cfm 33 98 cmm COMPRESSED AIR VOLUME 75 cfh 02 cmh S COMPRESSED AIR CONNECTION 1 8 318 cm STEAM COMSUMPTION Norma LOAD 238 7 Ibs hr 108 3 kg hr 7 OPERATING STEAM PRESSURE STEAM SUPPLY STEAM RETURN 125 psi max 8 6 bar 1 2 54 cm 1 2 54 Shaded areas are stated in metric equivalents For non reversing models A minimum of 3 4 pipe must be supplied to the gas inlet for each dryer NOTE ADC reserves the right to make changes in specificat
22. In the case of 208 VAC or 230 240 VAC THE SUPPLY VOLTAGE MUST MATCH THE ELECTRIC SERVICE EXACTLY GAS MODELS check to assure that the dryer is connected to the type of heat gas indicated on the dryer data label GAS ELECTRIC MODELS the sail switch damper assembly was installed and pre adjusted at the factory prior to shipping However each sail switch adjustment must be checked to assure that this important safety control is functioning GAS MODELS be sure that ALL gas shut off valves are in the open position Be sure ALL back panels guards and electric box covers have been replaced Check ALL service doors to assure that they are closed and secured in place Be sure the lint drawer is securely in place Rotate the basket tumbler drum by hand to be sure it moves freely Check bolts nuts screws terminals and fittings for security STEAM MODELS check to insure air supply 80 PSI is connected to the dryer STEAM MODELS check to insure ALL steam shut off valves are open STEAM MODELS check steam damper operation Check tumbler bearing set screws to insure they are ALL tight 35 1 PREOPERATIONAL TESTS ALL dryers are thoroughly tested and inspected before leaving the factory However a preoperational test should be performed before the dryer is publicly used It is possible that adjustments have changed in transit or due to marginal location installation conditions 1 Turn on electric power to the dryer a Ope
23. LD PRESSURE for GAS DRYERS This describes the manifold pressure taken at the gas valve tap 9 APPLICABLE APPROVAL SEAL S LE American Gas Association Canadian Gas Association 47 SECTION IX PROCEDURE FOR FUNCTIONAL CHECK OF REPLACEMENT COMPONENTS Hot Surface Ignition HSI System RED INDICATOR LIGHI Upon completing installation of the replacement O Hot Surface Ignition HSI module reestablish power to the dryer DIAGNOSTIC INDICATOR Catalog Number TRITON 2465H LED MODE Automatic Ignition System On ontrol Fault Prepurge 0 Sec Ignition 7 0 Sec 2 Flashes Flame No Call for Heat nterpurge 15 Sec 3 Flashes Ignition Lockout Start the drying cycle Input 24 50 60 Hz 300 mA Valve 24 VAC 2 0 A max Ignitor 24 or 120 VAC 5 0 A max The HSI module s red indicator light will light A dE f d k CAUTION HI VOLTAGE DISCONNECT WIRING BEFORE SERVICING or up to approximately 5 seconds self chec E Eee routine 2 1 QI O uem i 5 If the HSI module s red indicator light stays X on or flashes continuously then the HSI module GREEN INDICATOR LIGHT is wired incorrectly or has failed The green indicator will light then the hot surface ignitor will turn on and a few seconds later the gas valve will
24. National Gas Code specifications It is important that gas pressure regulators meet applicable pressure requirements and that gas meters be rated for the total amount of ALL the appliance BTU s being supplied IMPORTANT The dryer and its individual shut off valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1 2 psig 3 5 kPa NOTE The dryer must be isolated from the gas supply piping system by closing its individual manual shut off valve during any pressure test of the gas supply system at test pressures equal to or less than 1 2 psig 3 5 kPa 29 STEAM INFORMATION It is your responsibility to have ALL plumbing connections made by a qualified professional to assure that the gas plumbing installation is adequate and conforms with local and state regulations or codes IMPORTANT Failure to comply with the requirements stipulated in this manual can result in component failure which will VOID THE WARRANTY NOTE The MLS 78 is manufactured with a pneumatic piston damper system which requires an external supply of clean dry regulated air 80 PSI 10 PSI 1 Steam Coil PH Level The normal PH level for copper type steam coils must be maintained between a value of 8 5 to 9 5 For steel type steam coils the PH level must be maintained between a value of 9 5 to 10 5 These limits are set to limit the acid attack of the steam coils
25. UP Remove protective shipping material i e plastic wrap and or optional shipping box from dryer The dryer can be moved to its final location while still attached to the skid or with the skid removed To un skid the dryer locate and remove the four 4 bolts securing the base of the dryer to the wooden skid Two 2 are at the rear base remove the back panel for access and two 2 are located in the bottom of the lint chamber To remove the two 2 bolts located in the lint chamber area remove the lint door To increase bearing life and improve efficiency the dryer should be tilted slightly to the rear The basket tumbler is supported during shipping by a wooden block REMOVE THIS BLOCK BEFORE STARTING THE DRYER IMPORTANT For microprocessor computer models this wooden block must be removed before connecting power to the dryer or irreparable damage to the basket tumbler will result The lint coops of ALL ML 78 dryers are supported during shipping by a bracket REMOVE THIS BRACKET BEFORE STARTING THE DRYER 11 DRYER ENCLOSURE REQUIREMENTS Bulkheads and partitions should be made of noncombustible materials and must be located a minimum of twelve 12 inches 18 inches or more is recommended for ease of installation maintenance and service above the dryer outer top except along the front of the dryer which may be partially closed in if desired The clearance between the bulkhead header and the dryer must be
26. agram 2 Diagram 1 shows the damper in the heating open mode allowing heat into the tumbler Diagram 2 shows the damper in the cool down closed mode pulling ambient air directly into the basket tumbler without passing through the coils Diagram 1 Airflow Diagram 2 M M Heating Mode Airflow Airflow Cool Down Mode 33 5 Steam Damper Air Piston Flow Control Operation Adjustment Although the steam damper operation was tested and adjusted prior to shipping at 80 PSI steam damper operation must be checked before the dryer is put into operation Refer to page 33 or instructions to check steam damper operation If steam damper adjustment is necessary locate the flow control valve and make the necessary adjustments as noted below Et m pese prx SE AN m MM N MUFFLER STON N DETAI 7A DETAIL LC B XS x Jr Gp T En e MAN3567 pe Y ES N V 34 I PREPARATION FOR OPERATION START UP The following items should be checked before attempting to operate the dryer 1 2 10 11 12 13 14 Read ALL CAUTION WARNING and DIRECTION labels attached to the dryer Check incoming supply voltage to be sure that it is the same as indicated on the dryer data label affixed to the back side of the top front control service door
27. be energized After approximately 4 seconds the hot surface ignitor will shut off Ignition flame should now be established With the burner flame on remove the flame sensor wire from the S2 terminal of the HSI module The burner flame must shut off immediately Stop the drying cycle with the flame sensor wire still removed restart the drying cycle The hot surface ignitor will turn on and after a few seconds later the gas valve will be energized and the hot surface ignitor will shut off Ignition flame should be evident for approximately 7 seconds and then shut off The HSI module will attempt two 2 additional ignition trials after which the HSI module will lock out and the red indicator light will flash continuously i Functional check of the Hot Surface Ignition HSI Module is complete 1 Replace the flame sensor wire from the S2 terminal to the HSI module 48 ADC113029 1 01 19 98 50 2 10 14 98 0 3 01 11 99 20 Ameisen Diver Corp 4 04 26 99 35 0
28. berlike materials Drying in a heated basket tumbler may damage plastics or rubber and also may be a fire hazard 7 program should be established for the inspection and cleaning of lint in the burner area exhaust duct work and area around the back of the dryer The frequency of inspection and cleaning can best be determined from experience at each location WARNING The collection of lint in the burner area and exhaust duct work can create a potential fire hazard 8 For personal safety the dryer must be electrically grounded in accordance with local codes and or the NATIONAL ELECTRIC CODE ANSI NFPA NO 70 LATEST EDITION NOTE Failure to do so will VOID THE WARRANTY 9 UNDER NO CIRCUMSTANCES should the dryer door switches lint drawer switch or heat safety circuit ever be disabled WARNING PERSONAL INJURY or FIRE COULD RESULT 10 This dryer is not to be used in the presence of dry cleaning solvents or fumes 11 Remove articles from the dryer as soon as the drying cycle has been completed 12 READ and FOLLOW ALL CAUTION and DIRECTION LABELS ATTACHED TO THE DRYER WARNING YOU MUST DISCONNECT and LOCKOUT THE ELECTRIC SUPPLY and THE GAS SUPPLY or THE STEAM SUPPLY BEFORE ANY COVERS or GUARDS ARE REMOVED FROM THE MACHINE TO ALLOW ACCESS FOR CLEANING ADJUSTING INSTALLATION or TESTING OF ANY EQUIPMENT per OSHA Occupational Safety and Health Administration STANDARDS SECTION II SPECIFICATIONS COMPON
29. ch dryer An air flow of 1 200 cfm cubic feet per minute must be supplied to each gas and electric dryer and 1 350 cfm cubic feet per minute must be supplied to each steam dryer As a general rule an unrestricted air entrance from the outdoors atmosphere of a minimum of 1 1 2 square feet is required for each dryer N UP AIR OPENIN 1 ets E Fi 0 ye aN y x J il Ke A a gt TION SHOWING MAKE UP AIR OPENINGS MAN3565 To compensate for the use of registers louvers used over the openings this make up air must be increased by approximately thirty three percent 33 Make up air openings should not be located in an area directly near where exhaust vents exit the building It is not necessary to have a separate make up air opening for each dryer Common make up air openings are acceptable However they must be set up in such a manner that the make up air is distributed equally to ALL the dryers EXAMPLE For a bank of four 4 dryers two 2 unrestricted openings measuring 2 feet by 1 1 2 feet 6 square feet is acceptable Allowances must be made for remote or constricting passageways or where dryers are located at excessive altitudes or predominantly low pressure areas IMPORTANT Make up air must be provided from a source free of dry cleaning solvents fumes Ma
30. coil connections to crack if they are hard piped to the supply and return mains Shut off valves for each dryer should be installed in the supply line return line and drip trap return line This will allow the dryer to be isolated from the supply main and the return main if the dryer needs maintenance work Install an inverted bucket steam trap and check valve at least 12 inches below the steam coil as close to the coil as possible 1 A trap with capacity of 1 200 pounds of condensate per hour at 125 psi is needed for each unit The supply line and the return line should be insulated This will save energy and provide for the safety of the operator and maintenance personnel Water pockets in the supply line caused by low points will provide wet steam to the coil possibly causing steam coil damage ALL horizontal runs of steam supply piping should be pitched 1 4 inch for every one 1 foot back towards the steam supply header causing the condensate in the line to drain to the header Install a bypass trap in any low point to eliminate wet steam VACUUM BREAKER A K MANUAL SHU OFF VALVE E 10 RISER yee a j AA X M UN SUPPLY 12 RISE MIN FLEXIBLE HOSE PE 1 rT N COUPLING mes E 10 RISER lt DRIP TRAP 10 RISE ta N NC N 1 12 DROP MIN Ac S 1 j lt y p X P gt 1 d I a
31. dditionally the steam damper should not bind and or stop during travel If either of these conditions occur the flow control must be adjusted Refer to the illustration on page 34 for air adjustment instructions 36 c Electric Models 1 Check to insure that electric oven contactor assembly is activating 3 Make a complete operational check of ALL safety related circuits a Door Switch es b Hi Limit Thermostats c Sail Switch for Gas Models and Electric Models ONLY NOTE To check for proper sail switch operation for Gas Models and Electric Models ONLY open the main door and while holding main door switch plunger in start the dryer Dryer should start but heat circuit should not be activated on If the heat system is activated the sail switch is improperly adjusted and must be adjusted by bending the actuator arm of the sail switch toward the burner box If the actuator arm is bent to far toward the burner box of the dryer the dryer may not have heat when needed After any adjustment to the sail switch the above procedure must be repeated to verify proper operation of the sail switch 4 dryer should be operated through one 1 complete cycle to assure that no further adjustments are necessary and that ALL components are functioning properly IMPORTANT The dryer basket tumbler is treated with a protective coating ADC suggests tumbling old clothes or material in the basket tumbler using a mild detergent t
32. e vapors and liquids in the vicinity of this or any other appliance 2 Purchaser user should consult the local gas supplier for proper instructions to be followed in the event the user smells gas The instructions should be posted in a prominent location 3 WHAT TO DO IF YOU SMELL GAS a DO NOT try to light any appliance b DO NOT touch any electrical switch c DO NOT use any phone in your building d Clear the room building or area of ALL occupants e Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions f If you cannot reach your gas supplier call the fire department 4 Installation and service must be performed by a qualified installer service agency or gas supplier 5 Dryer s must be exhausted to the outdoors 6 Although ADC produces a very versatile machine there are some articles that due to fabric composition or cleaning method should not be dried in it WARNING Dry only water washed fabrics DO NOT dry articles spotted or washed in dry cleaning solvents a combustible detergent or all purpose cleaner EXPLOSION COULD RESULT WARNING DO NOT dry rags or articles coated or contaminated with gasoline kerosene oil paint or wax EXPLOSION COULD RESULT WARNING DO NOT dry mop heads Contamination by wax or flammable solvent will create a fire hazard WARNING DO NOT use heat for drying articles that contain plastic foam sponge rubber or similarly textured rub
33. ions at any time without notice or obligation Specifications MLG 78 Gas MLS 78 Steam 11684 cm 86 36 cm Specifications for the MLS 78 steam model were not available at time of printing for information contact the factory NOTE ADC reserves the right to make changes in specifications at any time without notice or obligation B COMPONENT IDENTIFICATION 1 Dryer Front View Illus No Description Controls Control top access Door Assembly Main Door Assembly Lint Compartment Area lint screen located behind door Data Label and Installation Label located behind control service door nA BWN 2 Dryer Rear View Illus No Description 1 Heating Unit 2 1 8 Compressed Air Supply Inlet behind Electric Service Relay Box for Steam Models ONLY 3 Electric Service Relay Box 4 Tumbler Bearing Mount Assembly 5 Idler Bearing Mount Assembly 6 Basket Drive Motor Assembly for Reversing Models ONLY 7 Blower Motor Assembly 8 Dryer Exhaust Electric service connections for Gas Models and Steam Models are made in this box SECTION III INSTALLATION PROCEDURES Installation should be performed by competent technicians in accordance with local and state codes In the absence of these codes the installation must conform to applicable American National Standards National Fuel Gas Code ANSI
34. ior to des commandes tiqueter tous fils avant disconnection when servicing controls Wiring de les d connecter Toute erreur de errors can cause improper operation c blage peut tre une source de danger et de panne CAUTION DRYERS SHOULD NEVER BE LEFT UNATTENDED WHILE IN OPERATION WARNING CHILDREN SHOULD NOT BE ALLOWED TO PLAY ON OR NEAR THE DRYER S CHILDREN SHOULD BE SUPERVISED IF NEAR DRYERS IN OPERATION FOR YOURSAFETY DO NOT DRY MOPHEADS IN THE DRYER DO NOT USE DRYER IN THE PRESENCE OF DRY CLEANING FUMES WARNING UNDER NO CIRCUMSTANCES should the door switch or the heat circuit devices ever be disabled WARNING The dryer must never be operated with any of the back guards outer tops or service panels removed PERSONAL INJURY or FIRE COULD RESULT WARNING DRYER MUST NEVER BE OPERATED WITHOUT THE LINT FILTER SCREEN IN PLACE EVENIF AN EXTERNAL LINT COLLECTION SYSTEM IS USED IMPORTANT PLEASE OBSERVE ALL SAFETY PRECAUTIONS displayed on the equipment and or specified in the installation and operator s manual included with the dryer Dryers must not be installed or stored in an area where it will be exposed to water or weather The wiring diagram for the dryer is located in the front electrical control box area Table of Contents SECTION I IMPORTANT INFORMATION eee ee e eese eee eee eee eese esee eee eese eee en sss se sse 3 A ARECEIVING amd Handling sn den
35. ircuit is done internally to the dryer No single phase 19 input connection is required on a 3 phase 39 dryer For gas and steam dryers manufactured for operation at 3 phase 39 the electrical connections are made at the power distribution block located in the service box at the rear upper left corner of the dryer The ground connection is made to the copper lug also provided in this box gain access to the service box contactor the service box cover must be removed SERVICE BOX COVER MOTOR LLOR IMP 23 1 ELECTRICALLY HEATED MODELS ONLY The only electrical input connections to the dryer are the 3 phase 39 power leads L1 L2 L3 and sometimes neutral and ground Single phase 19 power for the control circuit is done internally to the dryer No single phase 19 input connection is required on a 3 phase 39 dryer CAUTION The dryer must be grounded ground lug has been provided for this purpose Input connection wiring must be sized properly to handle the dryer s current draw This information is printed on the dryers data label NOTE A CIRCUIT SERVING EACH DRYER MUST BE PROVIDED The electrical input connections are made at the electric oven contactor located inside the assembly at the rear center upper section of the dryer The ground connection is made to a copper lug also provided in this area To gain access remove oven rear service cover
36. it should be protected from the weather by using a 180 turn to point the opening downward In either case allow at least twice the diameter of the duct between the duct opening and the nearest obstruction IMPORTANT DO NOT use screens or caps on the outside of opening of exhaust duct work 17 MUI TIPLE DRYER VENTING ADG 78 ADE 78 1200 EXHAUST CONNECTIONS AT COMMON DUCT NOTE A N NO OF DRYERS 4 3 2 1 MINIMUM CROSS SECTION AREA sain 3 254 200 13 MINIMUM ROUND ling DUCT DIAMETER IN 20 18 16 12 15 MAXIMUM NOTE A ITH 10 DIAMETER VERTICAL A 2 X D CLEARANCE HORIZONTAL INSPECTION DOORS TO INDIVIDUAL DRYERS C AN g ES m 46 MN ROOF g fe 0 40 INCH MINIMUM TUMBLER EXHAUST MUST ENTER MAIN WALL EXHAUST DUCT AT A 45 ANGLE Z X D CLEARANCE Ui IMPORTANT NO MORE THAN 4 DRYERS CAN BE CONNECTED TO ONE COMMON DUCT VENT FORMULAS TO CALCULATE DUCTING CROSS SECTIONAL AREA 2 CROSS SECTIONAL AREA OF A ROUND DUCT 785 x D WHERE D DIAMETER OF THE DUCT CROSS SECTIONAL AREA OF A RECTANGULAR DUCT W x H WHERE W WIDTH AND H HEIGHT H NOTE A OPENING MUST BE TWO 2 INCHES LARGER THAN DUCT ALL THE WAY AROUND MUST BE CENTERED WITHIN THIS OPENING 18 THE DUCT MAN3687 E ELECTRICAL INFORMATION
37. ke up air that is contaminated by dry cleaning solvent fumes will result in irreparable damage the motors and other dryer components NOTE Component failure due to dry cleaning solvent fumes will VOID THE WARRANTY 14 E EXHAUST REQUIREMENTS 1 General Exhaust Duct Work Information Exhaust duct work should be designed and installed by a qualified professional Improperly sized duct work will create excessive back pressure which results in slow drying increased use of energy overheating of the dryer and shutdown of the burner by the airflow sail switches burner hi limits or basket tumbler hi heat thermostats CAUTION DRYER MUST BE EXHAUSTED TO THE OUTDOORS CAUTION IMPROPERLY SIZED OR INSTALLED EXHAUST DUCT WORK CAN CREATE A POTENTIAL FIRE HAZARD The duct work should be laid out in such a way that the duct work travels as directly as possible to the out doors with as few turns as possible Single or independent dryer venting is recommended Horizontal Venting When single drying venting is used the length of duct work from the dryer to the outside exhaust outlet should not exceed fifteen 15 feet The minimum diameter of this duct work must be at least 10 inches In the case of multiple common dryer venting the distance from the last dryer to the outside exhaust outlet should not exceed 15 feet The shape of the duct work is not critical so long as the minimum cross sectional area is provided It is sugge
38. mostats NOTE When cleaning the dryer cabinet s avoid using harsh abrasives A product intended for the cleaning of appliances is recommended B ADJUSTMENTS 7 DAYS AFTER INSTALLATION and EVERY 6 MONTHS THEREAFTER Inspect bolts nuts screws bearing set screws non permanent gas connections unions shut off valves orifices and grounding connections Motor and drive belts should be examined Cracked or seriously frayed belts should be replaced Tighten loose V belts when necessary Complete operational check of controls and valves Complete operational check of ALL safety devices door switches lint drawer switch sail switch burner and hi limit thermostats 44 SECTION VII REVERSING TIMER SPIN DWELL ADJUSTMENTS Timer models have an electronic reversing timer in the electrical service box which is located in the upper left rear area of the dryer Both the Dwell stop Time and the basket tumbler Spin Time are adjustable by mode selection switches located on the electronic timer as noted in the illustration below TIMING LEGEND SPIN TIME Switch Postion Number Time in Seconds DWELL Stop TIME Switch Postion Number Time in Seconds Values shown are 1 second 45 SECTION LOCATION INFORMATION DATA LABEL 2 yee N i a MODEL LG 78 ON ET BH 27 4 T n PE OF HEAT
39. must be connected to the type of heat gas indicated on the dryer label affixed behind the right control box door If this information does not agree with the type of gas available DO NOT operate the dryer Contact the distributor who sold the dryer or the ADC factory IMPORTANT Any burner changes or conversions must be made by a qualified professional The input ratings shown on the dryer data label are for elevations up to 2 000 feet unless elevation requirements of over 2 000 feet were specified at the time the dryer order was placed with the factory The adjustment or conversion of dryers in the field for elevations over 2 000 feet are made by changing each burner orifice If this conversion is necessary contact the distributor who sold the dryer or contact the ADC factory 26 2 Technical Gas D ata a Gas Specifications Type of Gas Natural Gas Liquid Propane Gas Manifold Pressure 3 5 4 0 inches W C 10 5 11 0 inches W C Inline Pressure 6 0 12 0 inches W C 11 0 inches W C Measured at the gas valve pressure tap when the gas valve is on b Gas Connections Inlet connection 3 A inch N P T Inlet supply size 3 A inch N P T minimum Btu hr input per dryer 204 000 1 Natural Gas Regulation is controlled by the dryer s gas valve s internal regulator Incoming supply pressure must be consistent between a minimum of 6 0 inches and a maximum
40. n ALL shut off valves for Gas Models and Steam Models ONLY 2 Refer to the Operating Instructions for starting your particular model dryer a Gas Models 1 When the dryer is first started during initial start up the burner has a tendency not to ignite on the first attempt This is because the gas supply piping is filled with air so it may take a few minutes for this air to be purged from the lines NOTE During the purging period check to be sure that ALL gas shut off valves are open NOTE Gas dryers are equipped with a Hot Surface Ignition HSI system which has internal diagnostics If ignition is not established within three times the heat circuit in the HSI module will LOCK OUT until it is manually reset To reset HSI system open and close the main door and restart the dryer 2 Agas pressure test should be taken at the gas valve pressure tap of each dryer to assure that the water column pressure is correct and consistent NOTE Water column pressure requirements measured at the gas valve pressure tap 3 5 4 0 Inches W C 10 5 11 0 Inches W C IMPORTANT There is no regulator provided in an L P dryer The water column pressure must be regulated at the source L P tank or an external regulator must be added to each dryer b Steam Models 1 Check to insure that steam damper is functioning properly a The steam damper should not slam open or closed when it reaches the end of piston travel A
41. o remove the protective coating 5 Make a complete operational check of ALL operating controls a For microprocessor models check controller computer programs selections 1 Each microprocessor controller computer has been preprogrammed by the factory with the most commonly used parameter program selections If computer program changes are required refer to the computer programming manual which was shipped with the dryer 6 Check the electric service phase sequence 3 phase 30 models only While the dryer is operating check to see if the blower wheel impeller fan is rotating in the proper direction Looking from the front the blower wheel impeller fan should spin in the clockwise CW direction If it is the phasing is correct If the phasing is incorrect reverse two 2 of the three 3 leads at connections L1 L2 L3 of the power supply to the dryer IMPORTANT If the blower wheel impellor fan is rotating in the wrong direction this will not only drastically reduce drying efficiency but it can also cause premature component failure 37 7 REVERSING MODELS ONLY basket tumbler dryer should never be operated with less than a 30 Ib load dry weight The size of the load will affect the coast down and dwell stop times The basket tumbler must come to a complete stop before starting in opposite direction a Microprocessor Models 1 Spin Times and Stop Times are not adjustable in the Automatic Mode and
42. of 12 0 inches water column W C pressure 2 Liquid Propane L P Gas Dryers made for use with L P gas have the gas valve s internal pressure regulator blocked open so that the gas pressure must be regulated upstream of the dryer The pressure measured at each gas valve pressure tap must be a consistent 11 0 inches water column W C There is no regulator or regulation provided in an L P dryer The water column pressure must be regulated at the source L P tank or an external regulator must be added to each dryer Type of Gas L P mam Conversion BTU Natural Liquid Propane Per Hour Part Part a a NUMBER D M S D MLS Part Number Rating Qty Number Number MLG 78 204 000 4 29 140820 4 47 140805 881655 D MSS Drill Material Size equivalents are as follows Natural Gas 29 1360 Liquid Propane Gas 47 0785 27 3 Piping Connections ALL components materials must conform to National Gas Code specifications It is important that gas pressure regulators meet applicable pressure requirements and that gas meters be rated for the total amount of ALL the appliance BTU s being supplied The dryer is provided with 3 4 N P T inlet pipe connection located at the right side of the base of the dryer The minimum pipe size supply line to the dryer is 3 4 N P T For ease servicing the gas supply line of each dryer must have its own shut off val
43. rom which part was removed b Nature of failure be specific c Date of dryer installation d Date of part failure e Specify whether the part s being returned is for a replacement a credit or a refund NOTE If a part is marked for a credit or a refund the invoice number covering the purchase of the replacement part must be provided NOTE Warranty tags ADC Part No 450064 are available at no charge from ADC upon request 3 The company returning the part s must clearly note the complete company name and address on the outside of the package 4 ALL returns must be properly packaged to insure that they are not damaged in transit Damage claims are the responsibility of the shipper IMPORTANT No replacements credits or refunds will be issued for merchandise damaged in transit 5 ALL returns should be shipped to the ADC factory in such a manner that they are insured and a proof of delivery can be obtained by the sender 6 Shipping charges are not the responsibility of ADC ALL returns should be prepaid to the factory C O D or COLLECT returns will not be accepted IMPORTANT No replacements credits or refunds will be issued if the claim cannot be processed due to insufficient information The party filing the claim will be notified in writing either by FAX or CERTIFIED MAIL Return Receipt Requested as to the information necessary to process claim If reply is not received by the ADC Warrant
44. s of the elbows should preferably be 1 1 2 times the diameter of the duct ALL duct work should be smooth inside with no projections from sheet metal screws or other obstructions which will collect lint When adding ducts the duct to be added should overlap the duct to which it is to be connected ALL duct work joints must be taped to prevent moisture and lint from escaping into the building Inspection door should be installed at strategic points in the exhaust duct work for periodic inspection and clean out of lint from the duct work IMPORTANT Exhaust back pressure measured by a manometer in the exhaust duct should not exceed 0 3 inches of water column IMPORTANT Minimum duct work diameter for horizontal venting is 10 inches and for vertical venting the minimum is 12 inches NOTE Where the exhaust duct work passes through a wall ceiling or roof made of combustible materials the opening must be 2 inches larger all the way around than the duct The duct must be centered within this opening a Outside Duct Work Protection 1 To protect the outside end of horizontal duct work from the weather a 90 elbow bent downward should be installed where the exhaust exits the building If the duct work travels vertically up through the roof it should be protected from the weather by using a 180 turn to point the opening downward In either case allow at least twice the diameter of the duct between the duct opening and the nearest obstruction
45. scssssssscssssssssssssssssssssssssssssssssssssssssssees 40 Paso SRE V ICS Ses E 40 DPI toits bo pande eae ard tet eit than ence de 40 SECTION WARRANTY INFORMATION eite nine abono clau na 41 Retuming Warranty i as 41 B E Se 41 C Returning Warranty 41 SECTION VI ROUTINE MAINTENANCE ses rennes ess 43 Ao CNG AUN dad A ce ET 43 T NO USD DIS d coetu es T E 44 SECTION REVERSING TIMER SPIN DWELL ADJUSTMENTS ss 45 SECTION VIII DATA LABEL LOCATION INFORMATION e eene eee en ene 46 SECTION IX PROCEDURE FOR FUNCTIONAL CHECK OF REPLACEMENT COMPONEN LS RET RS INS 48 SECTION I IMPORTANT INFORMATION A RECEIVING and HANDLING The dryer is shipped in a protective stretch wrap cover with protective cardboard corners and top cover or optional box as a means of preventing damage in transit Upon delivery the dryer and or packaging and wooden skid should be visually inspected for shipping damage If any damage whatsoever is noticed inspect further before delivering carrier leaves Dryers damaged in shipment 1 2 ALL dryers should be inspected upon receipt and
46. sted that the use of 90 turns be avoided use 30 and or 45 angles instead The radius of the elbows should preferably be 1 1 2 times the diameter of the duct Including basket tumbler dryer elbow connections or elbows used for outside protection from the weather no more than two 2 elbows should be used in the exhaust duct run If more than two 2 elbows are used the cross sectional area of the duct work must be increased ALL duct work should be smooth inside with no projections from sheet metal screws or other obstructions which will collect lint When adding ducts the duct to be added should overlap the duct to which it is to be connected ALL duct work joints must be taped to prevent moisture and lint from escaping into the building Inspection door should be installed at strategic points in the exhaust duct work for periodic inspection and clean out of lint from the duct work Vertical Venting When single dryer venting is used the length of the duct work from the dryer to the outside exhaust outlet should not exceed twenty 20 feet The minimum diameter of this duct work must be at least 12 inches In the case of multiple common dryer venting the distance from the last dryer to the outside exhaust outlet should not exceed twenty 20 feet The shape of the duct work is not so critical so long as the minimum Cross sectional area is provided It is suggested that the use of 90 turns be avoided use 30 and or 45 bends instead The radiu
47. und to the copper lug located in the rear service box mentioned above SINGLE PHASE 10 ELECTRICAL CONNECTION LEADS BLACK POSITIVE GROUND CONNECTION If local codes permit power to the dryer can be made by the use of a flexible U L listed power cord pigtail wire size must conform to rating of dryer or the dryer can be hard wired directly to the service breaker panel In both cases a strain relief must be installed where the wiring enters the dryer b 3 Phase 36 Wiring Connections Hookup for NON REVERSING MODELS ONLY The electrical connections on ALL 3 phase 38 gas model and steam model dryers are made into the rear service box located at the upper left area of the dryer Electrical connections for electrically heated dryers are made in the electric oven area located at the upper rear area of the dryer NOTE A CIRCUIT SERVING EACH DRYER MUST BE PROVIDED If local codes permit power to a gas or steam dryer can be made by the use of a flexible U L listed power cord pigtail wire size must conform to rating of dryer or the dryer can be hard wired directly to the service breaker panel In ALL cases a strain relief must be installed where the wiring enters the dryer 22 1 GAS MODELS and STEAM MODELS ONLY The only electrical input connections to the dryer are the 3 phase 39 power leads L1 L2 L3 and sometimes neutral and ground Single phase 1 power for the control c
48. ut autre appareil We have tried to make this manual as complete as possible and hope you will find it useful ADC reserves the right to make changes from time to time without notice or obligation in prices specifications colors and material and to change or discontinue models Important For your convenience log the following information DATE OF PURCHASE MODEL NO ML 78 DISTRIBUTORS NAME Serial Number s Replacement parts can be obtained from your distributor or the ADC factory When ordering replacement parts from the factory you can FAX your order to ADC at 508 678 9447 or telephone your orders directly to the ADC Parts Department at 508 678 9000 Please specify the dryer model number and serial number in addition to the description and part number so that your order is processed accurately and promptly IMPORTANT NOTE TO PURCHASER Information must be obtained from your local gas supplier on the instructions to be followed ifthe user smells gas These instructions must be posted in a prominent location near the dryer IMPORTANT YOU MUST DISCONNECT and LOCKOUT THE ELECTRIC SUPPLY and THE GAS SUPPLY or THE STEAM SUPPLY BEFORE ANY COVERS or GUARDS ARE REMOVED FROM THE MACHINE TO ALLOW ACCESS FOR CLEANING ADJUST ING INSTALLATION or TESTING OF ANY EQUIPMENT per OSHA Occupational Safety and Health Administration STANDARDS Attention Lor des op rations d entretien Caution Label all wires pr
49. ve The size of the main gas supply line header will vary depending on the distance this line travels from the gas meter or in the case of L P liquid propane gas the supply tank other gas operated appliances on the same line etc Specific information regarding supply line size should be determined by the gas supplier NOTE Undersized gas supply piping can create a low or inconsistent pressure which will result in erratic operation of the burner ignition system DRYERS 28 Consistent gas pressure is essential at ALL gas connections It is recommended that a 2 inch pipe gas loop be installed in the supply line serving a bank of dryers An in line pressure regulator must be installed in the gas supply line header if the natural gas pressure exceeds 12 0 inches of water column pressure NOTE A water column test pressure of 3 5 4 0 inches for natural gas and 11 0 inches for L P liquid propane dryers is required at the gas valve pressure tap of each dryer for proper and safe operation A 1 8 N P T plugged tap accessible for a test gauge connection must be installed in the main gas supply line immediately upstream of each dryer IMPORTANT Pipe joint compounds that resist the action of natural gas and L P gas must be used IMPORTANT Test ALL connections for leaks by brushing on a soapy water solution liquid detergent works well ALL components materials must conform to
50. vidual installation date and warranty information to better serve you should you file a warranty claim a If a warranty card ADC Part No 112254 did not come with your dryer contact the ADC Warranty Department or ADC Service Department at 508 678 9000 B PARTS For a copy of the ADC commercial warranty covering your particular dryer s contact the ADC distributor from whom you purchased the equipment and request dryer warranty form ADC Part No 450190 If the distributor cannot be contacted or is unknown warranty information can be obtained from the factory by contacting the ADC Warranty Department at 508 678 9000 NOTE Whenever contacting the ADC factory for warranty information be sure to have the dryer s model number and serial number available so that your inquiry can be handled in an expeditious manner C RETURNING WARRANTY PARTS ALL dryer or parts warranty claims or inquires should be addressed to the ADC Warranty Parts Department To expedite processing the following procedures must be followed 1 No parts are to be returned to ADC without prior written authorization Return Material Authorization from the factory a The R M A issued by the factory as well as any other correspondence pertaining to the returned part s must be included inside the package with the failed merchandise 41 2 Each part must be tagged with the following information a Model number and serial number of the dryer f
51. y Department within thirty 30 days from the FAX letter date then no replacement credit or refund will be issued and the merchandise will be discarded 42 SECTION VI ROUTINE MAINTENANCE A CLEANING A program and or schedule should be established for periodic inspection cleaning and removal of lint from various areas of the dryer as well as throughout the duct work system The frequency of cleaning can best be determined from experience at each location Maximum operating efficiency is dependent upon proper air circulation The accumulation of lint can restrict this air flow If the guidelines in this section are met an ADC dryer will provide may years of efficient trouble free and most importantly safe operation WARNING LINT FROM MOST FABRICS IS HIGHLY COMBUSTIBLE THE ACCUMULATION OF LINT CAN CREATE A POTENTIAL FIRE HAZARD WARNING KEEP DRYER AREA CLEAR AND FREE FROM COMBUSTIBLE MATERIALS GASOLINE and OTHER FLAMMABLE VAPORS and LIQUIDS NOTE Suggested time intervals shown are for average usage which is considered six 6 to eight 8 operational running hours per day SUGGESTED CLEANING SCHEDULE EVERY THIRD or FOURTH LOAD Clean the lint screen every third or fourth load A clogged lint screen will cause poor dryer performance The lint screen is located behind the lint door in the base of the dryer Open the lint door brush the lint off of the lint screen and remove the lint Inspect the lint
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