American Dryer Corp. Clothes Dryer AD-100 User manual
American Dryer Corp. Clothes Dryer AD-100 is a high-performance dryer designed for commercial use. It features a durable construction and advanced technology for efficient and reliable drying. The dryer includes safety features like automatic shut-off in case of overheating or other malfunctions. The AD-100 is equipped with a lint filter to prevent clogging and ensure optimal air flow. It can be installed in various configurations with exhaust requirements for efficient operation. A comprehensive user manual provides instructions on operation, maintenance and troubleshooting for safe and long-lasting use.
PDF
Download
Document
Advertisement
Advertisement
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 life. Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance. WHAT DO YOU DO IF YOU SMELL GAS Do not try to light any appliance. Do not touch any electrical switch; do not use any phone in your building. Clear the room, building or area of all occupants. Immediately call your gas supplier from a neighbor's phone. Follow the gas supplier's instructions. If you cannot reach your gas supplier, call the fire department. Installation and service must be performed by a qualified installer, service agency or the gas supplier. 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) 678-9010 / Fax: (508) 678-9447 American Dryer Corp. ADC Part No. 450075 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 properly licensed 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. UNDER NO CIRCUMSTANCES should the door switch or the heat circuit devices ever be disabled. 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. AD-100 DISTRIBUTOR'S 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) 678-9010. 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. The illustrations on the following pages may not depict your particular dryer exactly. The illustrations are a composite of the various dryer models. Be sure to check the descriptions of the parts thoroughly before ordering. INSTRUCTIONS TO BE FOLLOWED IN THE EVENT THE USER SMELLS GAS MUST BE POSTED IN A PROMENT LOCATION. THE INSTRUCTIONS TO BE POSTED SHALL BE OBTAINED FROM THE LOCAL GAS SUPPLIER. 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, ADJUSTING, INSTALLATION, or TESTING OF ANY EQUIPMENT per OSHA (Occupational Safety and Health Adminstration) STANDARDS. Г CAUTION LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING THE COMPUTER BOARD and THE IGNITION MODULE. WIRING ERRORS CAN CAUSE IMPROPER AND DANGEROUS OPERATION. WIRING. CAUTION DRYER(S) SHOULD NEVER BE LEFT UNATTENDED WHILE IN OPERATION. | WARNING The dryer must not be operated with any of the front and/or rear control doors, side access doors, or service panels removed. PERSONAL INJURY COULD RESULT. o FOR YOUR SAFETY DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPOR AND LIQUIDS IN THE VICINITY OF THIS OR ANY OTHER APPLIANCE. DO NOT DRY MOP HEADS IN THE DRYER. DO NOT USE DRYER IN THE PRESENCE OF DRY CLEANING FUMES. IMPORTANT PLEASE OBSERVE ALL SAFETY PRECAUTIONS displayed on the equipment and/or specified in the installation/operator's manual included with the dryer. Dryer(s) must not be installed or stored in an area where it will be exposed to water and/or weather. Table of Contents SECTION | IMPORTANT INFORMATION -..............cececororcecececororernreoceronoreeceor eee ee eee e De Dee eee 1 A. Receiving and Handling ...................c.+r......e0eee0e000m e e O DDD DD essere sss sesso ssesssssesssss serene, 1 B. Safety Precautions....................eree0 eee DDR Ree Deere eee eee eee 1 SECTION II INSTALLATION PROCEDURES ............e.ececcenorerorococeroenerenececre eee Deere eee eee. 5 A. Unpacking/Setting UP ……………scersreneeseererseneesenmenenmnnnäntrnnsemnnnenmnnnnennnnnnnnnnmnnnnnnnnnnnnnnnnn 5 B. Location of the DTYET ……………….………crirersrsesesssenerersereerenesererersrsrrrenrrsrnrerrsrarseneuanenevaraeserenenenenencaenenes 5 C. Dryer Enclosure Requirements …….…….……..….….……smerresesenenmennnnnnnnsnnnnnnnnnnnnnnnnnnn ree nen. 9 D. Fresh Air Supply ................. e... eee Dee DR RR Deere EEE EEE 9 E. Exhaust Requirements .................e.0es0nirerceoee ce DD DION ÉDRÉIRITT OEI DR DR DR O DADO DON OD Oe eee sees sana 11 F. Electrical Information .............. e... eee ree ee ee ee eee enero eee reeee ee 12 1. Electrical Requirements 2. Electrical Service Specifications a. Gas and Steam Dryers b. Electric Dryers 3. Grounding .................ereeeereecee eee eee Deere reee ee ee eee reee tee reeenenererceerceea 14 4. Electrical CONNECtIONS …….….….………rerrerecenenmnnmnmenmannnmnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn rerriió 14 G. Gas Information .............e. ee... e eee e e eee ee e e e eee eee ear erre eniriaieiiós 15 1. Gas Supply 2. Technical Gas Data a. Natural Gas b. L.P. Gas c. Piping Connections Н. Steam Piping FIOOKUP ……..………iresseserenersenerenerneserenerunseneresenersrarassenernsareerevenesenenenenesavrcrernnnenenes 18 1. Low Pressure Steam 2. High Pressure Steam I. Preparation For OPEraAtiON .………….………creerieneenenmneensennmenmnnnnenmnnnnnnnnnnnnnnnnnennnnnnnnnnnnnnnnn 21 J. Preoperational INStTUCtIONS as 21 SECTION III OPERATING INSTRUCTIONS - Dual Timer InstrUCtiONS …………ccccrecceressseneereenensents 24 A. Components B. Operating Sequence SECTION IV INTRODUCTION TO PHASE 3 .….cocosserererenenenenenenenessossenensasarasaensarsenenennenamenencareneneneneasnensarenenenees 2 SECTION V L.E.D. DISPLAY CODES -............econcvceo eocnrnocccoes eococenooooconcanenecaceonaccocnananconecaa recen cacenocarecaceeoceeree 29 A. L.E.D. Indicator Dots SECTION VI OPERATING INSTRUCTIONS (PHASE 3 O.P.L.) .............cecocccococcccorccccoococcccorccococcorcecacecacono 31 A. Manually Operated Timed Mode B. Manually Operated Automatic Mode C. Preprogrammed Cycles D. Stopping the Dryer SECTION VII INTRODUCTION TO PROGRAMMING -..........2.ccenccocccccercccceooneococoe eee eee eee eee eee. 34 SECTION VIII FLOW CHARTS ......ecescrccorreconoccoorccooacoceneo econo reee coreo eee ee e ee ce eee eee eee e eee ee e e 37 A. Preprogrammed Cycle ................eeenceecicor eine e eee Deere eee eee eee eee eee 38 B. Example of a Preprogrammed Cycle ..................e..0rerorreoneroce ere eee ee eee 41 C. Program Location 1 ....................eereereer ee DD e e De e ener ene eee eee ee nee eee. 44 D. Program Location 2..................... eee DD II DO e e e e ee Der Dee eee eee ee es 46 E. Program Location 3 ..................ese00ee e DI OI O IR CR e ere e e ee e e e ere ere eee De 48 F. Program Location 4... EEE penenenenerererereenererereeeorereee rre ecerereereroeerorarereeorenenes 50 G. Manually Entered Automatic Cycle ..................e.eeriereien DDD IDR ÉITÍRÉ ET Z E IE REL e es 51 H. Manually Entered Manual Cycle .......................csnrceere e reee eee ee 52 I. Factory Preset Programs (Reversing DryerS).......…..…...…...….esceesenennenennnnnnnnnnmnnmnnnnenmnnn 53 J. Factory Preset Programs (Non-Reversing DryerS) ..………...srsrisesençensesmtennnnnmnnnnmnnnnnnn 53 K. Programming LimitS …..….…..…..eserennnnennenenennnnnnnnnennnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 54 SECTION IX HEAT/IGNITION/FLAME SAFETY CIRCUIT OPERATION -.............c2.conceccorcecceice reee 56 A. Dual Timer Dryer Gas Valve System ......................errme e DD DD e ee 56 1. Components and Operating Sequence B. Computer-Controlled Hi/Lo Gas Valve System ………srerrnrescencers rns 56 1. Introduction 2. 1/2" Hi/Lo Gas Valve 3. Operational Sequence 4. Manual Mode of Drying 5. Automatic Mode of Drying C. Ignition/ Flame Safety Components ...................e.srereresiere e DD DI II ID O OD e DD sree, 62 1. Glo-Bar (Ignitor) 2. LR. Sensor (Flame Switch) 3. Diode Logic Board a. Ignition Failure Troubleshooting SECTION X MOTORIZED STEAM VALVE -...........ee.ececonrcccccorocenococeocoeconccaecooeraccasrcanccooeracancanorrccaceooorcnece. 65 SECTION XI ROUTINE MAINTENANCE...........c...ecocerereeeem rm a ee reee ee erre eee 66 A. Cleaning B. Adjustments C. Lubrication SECTION XII PARTS MANUAL ILLUSTRATIONS and DESCRIPTIONS essen prnnanosccccnnenenenerccc nes 68 SECTION XIII SERVICING ...ercececeeconercece reee eee ee re eee ee Deer ree Deere eee reee cer eee ee 96 SECTION XIV TROUBLESHOOTING -..........c.cnecececonecsceccccoc e reee e e De erre reee eee 122 SECTION XV | TECHNICAL DATA ...........ecesececoceconeorcececenoncece reee ee e e eee Deere e erre DDD 131 A. Adjustment of Internal Micro-switches in Motorized Steam Valve .................mememeem 131 B. Diode Logic CONtrOI SYStENN ………..….………sesrenenenmenenneannçnnennsennnnnnnnmnnnnnnnnnnnmnnnnnnnunnnnmn 132 C. 208/230 Volt Ignition Transformer Wiring …………………eerseesenseenesensennnmnnnnntnnnnnnnnnnnnnn*n 134 D. Electric Oven WITiNG.…………usererensenenseneneanenseaneanensensensenrensreneereneneasenserneeneanensenersenen cessera 139 SECTION 1 IMPORTANT INFORMATION A. Receiving and Handling The dryer is shipped with a protective polyethylene cover and protective corners and is enclosed in a cardboard carton as a means of protection in transit. Upon delivery, the shipping carton and wooden skid should be visually inspected for shipping damage. If carton or wooden skid is damaged, inspect further, Dryers Damaged in Shipment 1. All dryers should be inspected upon receipt and before they are signed for. 2. If there is suspected damage or actual damage, the trucker's receipt should be so noted. 3, If the dryer is damaged beyond repair, it should be refused. Those dryers which were not damaged in a damaged shipment should be accepted, hut the number received and number refused must be noted on the receipt. | 4, If you determine that the dryer has been damaged after the trucker has left your location, you should call your local freight terminal immediately and request an inspection and freight claim form. 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. 5. If you need assistance in handling the situation, please call Monique Sullivan at American Dryer Corporation. IMPORTANT: THE DRYER SHOULD BE TRANSPORTED AND HANDLED IN AN UPRIGHT POSITION AT ALL TIMES. B. Safety Precautions 1. Do not store or use gasoline or other flammable 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 1 smells gas. The instructions should be posted in a prominent location. Dryer must be exhausted to the outdoors. Although the American dryer is 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” cleaners. Fire or explosion could result. WARNING: Do not dry rags or articles coated with gasoline, kerosene, paint, wax, or grease. Fire or explosion could result. WARNING: Do not dry mopheads. Contamination by wax or flammable solvents will create a fire hazard. WARNING: Do not use heat for drying articles that contain plastic, foam, or sponge rubber, or similarly textured rubber-like materials. Drying in a heated tumbler may damage plastics or rubber and also may be a fire hazard, A program should be established for the inspection and cleaning of the lint in the burner area and exhaust duct work. 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. For personal safety, the dryer must be electrically grounded in accordance with local codes and/or the National Electric Code ANSI/NFPA No. 70-1984, NOTE: Failure to do so will void warranty. Under no circumstances should the dryer door switch or heat circuit safety devices ever be disabled. WARNING: Personal injury or fire could result. READ AND FOLLOW ALL CAUTION AND DIRECTION LABELS ATTACHED TO DRYER, О == = o — | - -— STE St o ps [———— | o ey - — 1 > = nn < FRONT VIEW Control Panel Assembly a. Phase 3 Computer; page 70 be Dual Timer (not shown); page 72 Control Door Assembly; page 73 Front Panel and Main Door Assembly; page 74 Lint Door Assembly; page 76 Lint Coop/Thermostat Bracket Assembly; page 78 Wiring Schematic (behind control door) 3 —— —— — — 1 REAR VIEW Tumbler Motor Mount Assembly; page 82 Blower Motor Mount Assembly (behind belt guard); page 83 Idler Bearing Mount Assembly; page 81 Tumbler Bearing Mount Assembly; page 80 Motor Relay Box Assembly: a. Reversing, Computer; page 84 b. Reversing, Dual Timer; page 85 c. Non-reversing; page 86 Gas Burner Assembly; page 88 Data Label and Installation Label 4 SECTION II INSTALLATION PROCEDURES Installation should be performed by competent technicians in accordance with local and state codes. In the absence of these codes, installation must conform to applicable AMERICAN NATIONAL STANDARDS: ANSI 7223.1 - 1984 (NATIONAL FUEL GAS CODE) or ANSI /NFPA NO. 70-1984 (NATIONAL ELECTRIC CODE) A. Unpacking/Setting Up Remove shipping carton, polyethylene cover and protective shipping corners 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) skid bolts securing the base of the dryer to the wooden skid. Two (2) are located at the rear base, and two (2) are located in the bottom of the Tint chamber. Once these bolts are off, remove the eight (8) nuts and bolts holding the skid together and take the skid apart. The dryer can now be removed from the skid. | The lint coop is supported during shipping by a bracket, Remove this bracket before starting the dryer, The V-belts are disconnected from the tumbler drive motor for shipping. Reconnect the belts before starting the dryer. B. Location of the Dryer Before installing the dryer, be sure the location conforms to local codes and ordinances, 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. It is recommended that the rear of the dryer be positioned about two (2) feet away from the nearest obstruction (i.e., wall) for ease of installation, maintenance, and service. Li ‘| FA т о | Г INSIDE CONTROL BOX O 5 47 8 ai о = Ww o Î 1 3 + 3 I 4 — 37 | .a— 12 — 22 g FIGURE 3 = 2 — Ч Ed | FIGURE 4 rte — 6x6 pads (2) — 4 holes | 3 — 39 — — 3— 16 Ve 2 typ If more headroom is needed when moving the dryer into position, the top console may be removed. l. Disconnect the ground wire (A) at the rear of the dryer. (Figure 4) 2. Remove the six (6) nuts (B) holding the console to the base. (Figure 3) 3. Open the control door and disconnect the white 15-pin plug (С) located at the bottom of the control box. (Figures 3 and 4) 4. Lift the console off the base. (Figure 4) To level the dryer, place 4" square metal shims (D) (Figure 4) or other suit- able material under the base pads. NEAREST COMBUSTIBLE — 2" HEADER CLEARANCE WALL CONSTRUCTIONS SUGGESTED (5.08 CM) 6 MIN, CLEARANCE REQ D (15.24 CM.) CEILING RBD DD [0 Nor A x X > VOS PERMITTED A < [ (SEE NOTE) » % | x Esa — e | & 9] МАХ, ___ ç 1(10.16 CM) REAR WALL ZI SIR % Le Ered % LA B — a | 6 PERMITTED X E ( 24 CLEARANCE ) \ SUGGESTED + a FOR EASE OF MAINT. (60,96 CM) 0" PERMITTED NOTE : (1-2" SUGGESTED 1) ALLOWANCE MUST BE MADE FOR EASE OF MAINT.) TO ALLOW CONTROL DOOR TO (2.54 - 5.08 СМ) OPEN. INSTALLATION: DRYER CLEARANCE TO ADJACENT WALL STRUCTURES. «——— 3 3-— >» A B 4 STD, CABINET в 14% 14 —p— 197 — =— y = = STEAM SUP INLET | SCENE dE Zo 1"FPT HIGH PRESS. 177 1 V4FPT LOW PRESS. ni / GAS INLET ADG 100B } 2 — Ly / GAS INLET ADG 100BH 14 i 2 GAS DRYERS | / y / | ONLY * — — 63 _ 3 a | | — ANZ RETURN 1/2 FPT(2) —>й 12 1 877 | ELEC. CONN. 81 | | 1 ; | 685 613 + i | L | Rear View E A 12” DIA. - 48 + >| EXHAUST (16”DIA. EX. FOR SUPER STEAM) INSTALLATION INFORMATION FOR GAS , STEAM. AND ELECTRICAL CONNECTIONS AND EXHAUST LOCATION. С. Dryer Enclosure Requirements Bulkheads and partitions should be made of non-combustible materials and must be located a minimum of six (6) inches above the dryer outer top, except along the front of the dryer which may be closed in if desired. NOTE: Allowance must be made for opening the control door. Dryers may be positioned side wall to side wall. However, allowances should be made for the opening and closing of the control and lint doors. It is suggested that the dryer be positioned about two (2) feet away from the nearest rear obstruction for ease of installation, maintenance, and service. Refer to the previous illustration for details. D. Fresh Air Supply When the dryer is operating, it draws in room air, heats it, passes this air through the 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 on gas dryers may result, and you also could have 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 each dryer. An air flow of 1750 CFM must be supplied to all gas, electric, and steam dryers, except the super-steam dryer which requires 2500 CFM. As a general rule, an unrestricted air entrance from the outdoors (atmosphere) of a minimum of three (3) square feet is required for each dryer. Five (5) square feet are required for the super-steam model. If registers or louvres are installed over the openings, then the area must be increased, 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 the dryers. Example: For a bank of six (6) gas dryers, two (2) openings measuring 3'x3' (9 square feet) is acceptable. Refer to the following illustration for details. | 9 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 fumes, Make-up air that is contaminated by dry cleaning fumes will result in irreparable damage to motors and other dryer components. NOTE: Component failure due to dry cleaning fumes voids warranty. L 3 | | a MAKE UP AIR OPENINGS 77 -—3 — — NN CON \_/ TYPICAL INSTALLATION SHOWING MAKE-UP AIR OPENINGS 10 E. Exhaust Requirements Exhaust duct work should be designed and installed by a competent technician, Improperly sized duct work will create excessive back pressure which will result in slow drying, increased use of energy, and shutdown of the burner by the air flow (sail) switch, burner hi-limit or lint chamber hi-heat protector thermostat. Refer to the following illustrations for details. CAUTION: Improperly sized or installed exhaust duct work can create a potential fire hazard. NOTE: When a dryer is exhausted separately, it is recommended that a back draft damper be installed. NOTE: When dryers are exhausted into a common exhaust line, each dryer must be supplied with a back draft damper. Minimum _ cross ion greg in sq in for 12" dia. ducts | 670 | 560| 450 | 340 | 230 | 115 for 16" dia ducts |1230|1025| 820| 615 | 410 | 205 a , DI Y Main Duct с { a | 2 roof | LA = 7, 77) wall E a 2" MIN. [*—0— CLEARANCE 2xD Clearance 50 — Min FIGURE | FIGURE 2 Where possible, it is desirable to provide a separate exhaust air duct for each dryer. The duct should be 12" in diameter (16" for super-steam dryers). The duct should go as directly as possible to the outside air. Avoid sharp 90° right angle turns in the ducting; use 30 degree or 45 degree angles instead. The radius of the elbows should preferably be 1-1/2 times the diameter of the duct. To protect the outside end of the duct from the weather, it may be bent downward as indicated in Figure 1. Leave at least twice the diameter of the duct clear between the duct opening and the nearest obstruction. If the exhaust duct goes through the roof, it may be protected from the weather by a hood or by using a 180% turn to point the opening down as indicated in Figure 2. In either case, allow at least twice the diameter of the duct as clearance from the nearest obstruction as indicated above. 11 Do not use screens or caps on the outside opening of the exhaust duct. The ducting 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. Provide inspection doors for periodic clean-out of lint from the main duct. If it is not feasible to provide separate exhaust ducts for each dryer, ducts from the individual dryers may be channeled into a common main duct. Each dryer must be provided with a back draft damper. The individual ducts should enter the bottom or side of the main duct at an angle not more than 45 degrees and should be spaced at least 50" apart. The main duct should be tapered with the diameter increasing before each individual duct is added. The minimum increase in cross-section area should be 115 square inches for each 12" duct added and 205 square inches for each 16" duct added. Where rectangular main ducting is used, the areas shown should be increased 10 square inches, and the ratio of duct width to depth should not be greater than 3-1/2 to one. Figure 1 shows the minimum cross-section areas of the main duct for either 12" or 16" dryer ducts. These figures should be increased if the main duct is unusually long (20' or over) or has numerous elbows in it. Inadequate exhaust facilities may cause high temperature limit switches or air flow switches to shut off the dryers. Do not disable the switches, which are provided for your safety. Instead, investigate the exhaust ducting. Any obstruction or air friction due to numerous elbows/fittings in the ducting will slow the passage of air through the system with resulting inefficiency and potential fire hazard. F. Electrical Information l. Electrical Requirements It is your responsibility to have all 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 ELECTRIC CODE ANSI/NFPA NO. 70-1984, 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 voids warranty. It is recommended that a separate circuit serving each dryer 12 be provided not use alu NOTE: The u The dryer must be connected to copper wire only. Do minum wire which could cause a fire hazard. se of aluminum wire voids warranty. 2. Electrical Service Specifications a. Electric Service - Gas and Steam Dryers 208VAC, 3-Phase 230VAC, 3-phase | Amp Wire 3-Pole | Amp Wire 3-Pole Model Draw Size Breaker | Draw Size Breaker ADG-100 11 #14 15 10 #14 15 ADS-100 11 #14 15 10 #14 15 ADS-100 Super Steam 15 #12 20 14 #14 20 IMPORTANT: The dryer must be connected to the electrical supply shown on the data label affixed to the dryer. In the NOTE: be All e case of 208 or 230 volts, the supply voltage must match the electric service specs of the data label exactly. The voltages 208 and 230 are not the same. Should it be found that a gas dryer was manufactured for operation at 230 volts and the service supply voltage is 208 volts, (or vice versa), a slight wiring change is necessary at the heat circuit transformer. This transformer is located inside the control wire box and is used to step down the control (primary) voltage (i.e., 208 or 230) down to 110 volts. The transformer is dual (primary) voltage; however, it must be wired accordingly. In the case of 208 volts, the yellow primary lead must be used, and the red lead dead ended. For 230 volts, the red primary lead must be used, and the yellow lead dead ended. See the wiring diagram located on the back of the control door. Refer to the drawing in the Technical this manual Data section of for the exact wiring connection diagram. Electric Service - Electric Dryers lectrically heated dryers must be connected to the electric supply service shown on the dryer's data label which is affixed to properly si NOTE: void Component failure due to the back of the dryer. The connecting wires must be Zed to handle the rated current. improper voltage application will warranty. 13 ELECTRIC OVEN SELECTION | EQUIV. SUPPLY | LINE SUPPLY HEAT BTU'S | VOLTAGE | AMPS CABLE AWG 60 204, 780 208 167 0 50 170, 650 220 132 1/0 55 187, 720 230 138 1/0 60 204, 780 240 145 1/0 60 | 204,780 416 | 83.5 | 4 50 | 170,650 440 66 4 55 187, 720 460 69 4 60 204, 780 480 72.5 4 3. Grounding A ground (earth) connection must be provided and installed in accordance 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. 70-1984). 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. 12 minimum) be connected from the ground connection of the dryer to a grounded cold water pipe. Do not ground to a gas pipe. The grounded cold water pipe must have metal to metal connections all the way to electrical ground. If there are any non-metallic interruptions, such as, a meter, pump, plastic, rubber, or other insulating connectors, they must be jumped 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. 4, Electrical Connections The only electrical input connections to the dryer are the 14 3-phase power leads and ground. Single-phase power for the control circuit is done internally to the dryer. No single-phase input connection is required. a. Gas and Steam Dryers For gas and steam dryers, the electrical connections are made at the wire leads located in the service box at the rear, upper left corner of the dryer. To gain access to the service box and contactor, the service box cover must be removed. Providing local codes permit, power to the dryer can be made by the use of a flexible U.L. listed chord/pigtail (wire size must conform to the rating of the dryer), or the dryer can be hard wired directly to the service breaker. In all cases, a strain relief should be used both where the wiring enters the dryer and the service box. NOTE: It is recommended that a circuit serving each dryer be provided. be Electric Dryers For dryers made to operate at 208, 230, or 240 volts, the electrical input connection is made into the terminal block located at the upper rear of the dryer. For dryers made to operate at 380, 416, 440, or 480 volts, the electrical input connection is made to the oven relay located at the upper rear of the dryer. Input connection wiring must be sized properly to handle the dryer's current draw. This information is printed on the dryer's data label. NOTE: It is recommended that a circuit serving each dryer be provided. CAUTION: The dryer must be grounded. A ground screw connection has been provided in the service box for this purpose. The only electrical connections to the dryer are the 3-phase leads and ground. Single-phase power for the control circuit is done by the factory at the contactor (relay), and no other wiring connections are necessary. G. Gas Information 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. The dryer must be isolated from the gas supply piping system by closing its individual manual shut off valve during any 15 pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 psig. 1, Gas Supply The gas dryer installation must meet the AMERICAN NATIONAL STANDARD, NATIONAL FUEL GAS CODE ANSI 7223.,1-1984, as well as, local codes and ordinances and must be done by a qualified technician, NOTE: Undersized gas piping will result in ignition problems and s low drying and can create a safety hazard. The dryer must be connected to the type of gas (natural or L.P.) indicated on the dryer data label. If this information does not agree with the type of gas available, contact the distributor who sold the dryer or contact the factory. The gas 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 for dryers in the field for elevations over 2,000 feet are made by changing the burner orifices. If this adjustment is necessary, contact the distributor who sold the dryer or contact the factory. NOTE: Any burner changes must be made by a qualified technician. 2. Technical Gas Data a. Natural Gas The natural gas supply pressure to the dryer must be between 6 and 12 inches water column. If the pressure is too low, ignition failure and/or Slow drying times may result. Excessively high supply pressure will result in erratic operation of the gas valve's internal pressure regulator. The pressure measured at the pressure tap on the body of the gas valve must be 4 inches water column. be Liquid Petroleum (L.P.) Gas Dryers made for use with L.P. have the gas valve pressure regulator blocked open, so that the gas pressure must be regulated downstream of the dryer. The pressure measured at the gas valve body pressure tap must be 11 inches water column. 3. Piping/Connections The dryer is provided with a 3/4" N.P.T. inlet pipe connection extending out the rear area. For ease of servicing, the gas supply line of each dryer should have its own shut-off valve. 16 TYPICAL NATURAL GAS INSTALLATION GAS SHUT-OFF VALVES yon PIPE GAS LOOP GAS WATER HEATERS GAS SERVICE LINE TAP Y GAS METER IN LINE PRESSURE REGULATOR IF (NATURAL) GAS LINE PRESSURE EXCEEDS 12" INCHES WATER COLUMN PRESSURE DRYERS TYPICAL L.P GAS INSTALLATION. GAS WATER HEATERS PRESSURE REGULATORS (OPTIONAL) AN PIPE GAS LOOP Kiné TAF | —— Lo 3 $ - PRESSURE REGULATOR LP SUPPLY TANK — DRYERS ORIFICE AND WATER COLUMN TABLE ADG-100 NATURAL LP DIA. [DRILL DIA. [DRILL ADG-1008 (265, 000 BTU) | pr noue (size (0TY4 or noue Isize |9TY 1730" 1065" MAIN BURNER ORIFICE |Z 3g mm | 1713 277mm | 3° |3 ADG-100BH (250, 000 BTU)| DIA. |DRILL ту | DIA. ВИЧ оту EAT RECLAIMER OF HOLE |SIZE | OF HOLE ISIZE 1695" 1040" MAIN BURNER ORIFICE |3 зо пп | 18 | 3 157627 mm | 913 WATER COLUMN (MEASURED AT PRESSURE TAP ON 4" 11" BODY OF GAS VALVE) The size of the gas supply line (header) will vary depending on the distance this supply line travels from the gas meter or, in the case of L.P. 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 inconsistant gas pressure which will result in erratic operation of the burner ignition system. Consistant gas pressure is essential at all gas connections. It is recommended that a 1" pipe gas loop be installed in the supply line serving the bank of dryers. An inline pressure regulator must be installed in the gas supply line (header) if (natural) gas line pressure exceeds 12 inches water column pressure. Refer to the following illustrations for details. IMPORTANT: Water column pressure of 4 inches for natural gas dryers and 11 inches for L.P. dryers is required at the gas valve pressure tap of each dryer for proper and safe operation. | A 1/8" N.P.T. plugged tapping, 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 and L.P. gases must be used. WARNING: Test all connections for leaks by brushing on a soapy water solution (Liquid detergent also works well.) NEVER TEST FOR GAS LEAKS WITH A FLAME All components/materials must conform to National Fuel Gas Code specifications. It is important that gas pressure regulators meet applicable pressure requirements, and gas meters be rated for the total amount of appliance BTU's being supplied. He. Steam Piping Hookup Piping must be installed in accordance with good commercial Steam system practice, 18 Care must be exercised when leveling steam dryers in final position. After leveling the dryer, check the downward pitch of the heat exchanger from front to rear with a level. Likewise, check the downward pitch of the return condensate manifold toward its outlet part. Absence of these downward pitches will result in probable water hammer and premature heat exchanger fracture and leakage. The presence of condensate in the steam will cause water hammer and subsequent heat exchanger failure. The steam supply connection must be taken from the top of a well-dripped steam main. If the supply run-out to the dryer exceeds twenty feet, it should be dripped just before the control valve with a proper trap and dirt pocket, 1. Low Pressure Steam (10-15 psig) Low pressure steam requires oversized piping. Lines running from each main to each dryer must be 1-1/4" pipe. We recommend an F&T (float and thermostatic) trap for low pressure steam. | Do not elevate the condensate return line after the F&T trap. Drain only by gravity into a properly vented low pressure return or condensate tank. Locate the steam trap at least 12" below coil outlet to assure proper drainage. If a steam valve is factory supplied with the low pressure steam dryer, it will be a solenoid type steam valve. Wire the steam solenoid into the dryer per the electrical wiring diagram supplied with the dryer. 2. High Pressure Steam (100-125 psig) Dryers equipped to operate with high pressure steam require a 1" supply line and a 1/2" return line. We recommend an inverted bucket trap for high pressure dryers. DO NOT USE THERMODYNAMIC, DISC, OR IMPULSE TRAPS, The condensate return line may be elevated after a bucket trap, but only if there is sufficient line pressure to overcome the head. Determine head loss by deducting 12 psi for the control valve, coil, and trap losses, and deduct 1/2 psi for each foot of elevation. Locate the steam trap at least 12" below the coil outlet. If a steam valve is factory supplied with a high pressure dryer, it will be a motorized steam valve. This is a slow opening and closing valve which will significantly reduce water hammer. Remove the motor cover and connect power wires to the 19 motor's terminal strip per the wiring diagram supplied with the dryer. The motor operates on 120 volts only, so a power transformer will be supplied with the dryer. It is important to remember that the motor requires electrical power to open the valve and electrical power to close the valve. So, if main dryer power 1$ cut off when the valve is open, it will remain open. Steam flow must be in the direction of the arrow printed on the steam valve body. The motorized steam valve should be mounted horizontally, so that the motor is directly above the valve. NOTE: Flexible hose must be provided between the coil and main lines to prevent piping strains. The preceding precautions are necessary and any variation from them will void the warranty on the heat exchanger. FIG. STEAM COIL [~ YACUUM BREAKER GAUGE 0-150 PSIG INLET N/SIPHON TUBE MOTORIZED STEAM VALVE Co (OPTIONAL) N 4 1/4" PER FT. 7 STEAM PITCH MIN. HT SUPPLY | FLEXIBLE HOSE { — OR COUPLING 1 8 e | \ TO CONDENSATE _ < STRAINER RETURN Г | | DIRT POCKET 12" MIN. OUTLET 1/4" PER FT. + CONDENSATE RETUAN PITCH Y I | DIRT РОСКЕТ — — — «=. A Trap SUGGESTED STEAM COIL PIPING ARRANGEMENT Al1 steam piping hook-up and maintenance must be performed by a qualified technician in accordance with local codes. 20 I. Preparation for Operation The following items should be checked before attempting to operate the dryer: 1. Read and follow all caution, warning and direction labels attached to the dryer. 2. Check incoming supply voltage to be sure that it is the same as indicated on the dryer data label located on the back of the dryer. 3. For gas dryers, check to assure that the dryer is connected to the type of gas indicated on the dryer data label, 4. The sail switch damper assembly is installed and pre-adjusted at the factory prior to dryer shipment. However, the sail switch adjustment must be checked to assure that this important safety control is functioning. A sail switch is provided on gas and electric dryers only. 5. Check bolts, nuts, screws, terminals, and fittings for tightness. 6. Be sure all shut-off valves are in the open position. 7. Be sure the back guard and service box cover have been replaced. 8. Make sure the lint coop support bracket has been removed. Make sure tumbler drive motor V-belts have been reconnected. 9. Check the lint door to assure that it is closed and secured in place. IMPORTANT: If during installation the lint door safety chain was disconnected, it must be reconnected or personal injury may result. | 10. Rotate the tumbler (drum) by hand to be sure it moves freely. Jo Pre-operational Test All dryers are thoroughly tested and inspected before leaving the factory. However, a pre-operational test should be done before the dryer is put into use. It is possible that adjustments have changed in transit. 1. Turn on electric power to dryer. 21 2. lo Start dryer: a. Dual Timer Dryer 1) Turn drying timer knob for a time of 20 minutes. 2) Select "High Temp". 3) Push "Push to Start" switch. b. Computer Dryer 1) Display will say "FILL", 2) Press the "E" touch pad on keyboard of computer. 3) Display will quickly show Ld30, LC04, F180. The dryer will start, and the display will show dr30. NOTE: Pressing touch pads A, B, C, D, and F will also start the dryer. Six pre-programmed drying cycles (A through F) have been stored in the computer's memory. See page 55 for these preset programs. When a gas dryer is first started, it may not ignite on the first ignition attempt. This is because the gas supply piping may be filled with air, and it may take a few minutes for this air to be purged from the lines. During this purging period, check to be sure all gas shut-off valves are open. If the dryer still fails to heat, refer to the trouble shooting section. 4, Make a complete operational check of all the operating controls to assure that the timing is correct, temperature selection switches are functioning, etc. Make a complete operational check of all safety related circuits. Door switch(es), hi-limit thermostat, sail switch, cycling thermostats, etc. A gas pressure test should be taken at the gas valve pressure tap of each dryer to assure that the water column pressure is correct and consistant. NOTE: Water column pressure requirements: (measured at the pressure tap on gas valve body) Natural Gas - 4 inches W.C. L.P. Gas - 11 inches W.C. 22 If computer program changes are required, refer to the Phase 3 Computer Programming section of this manual. The dryer should be operated through one complete cycle to assure that no further adjustments are necessary and that all components are functioning properly. IMPORTANT: The dryer tumbler (basket/drum) is treated with a protective coating. We suggest tumbling old clothes or material in the basket using a mild detergent to remove coating. Check the electric service phase sequence. While the dryer is operating, check to see if the blower wheel is rotating in the proper direction. Looking from the front, the blower wheel should spin in the clockwise direction. If so, the phasing is correct. If the phasing is incorrect, reverse two (2) leads at connections Ll, L2, or L3 of power supply to the dryer. 23 SECTION III OPERATING INSTRUCTIONS - DUAL TIMER DRYER A. Dual Timer Control Components Component Function Drying Timer Permits the dryer to run in the heating mode for a maximum time of 60 minutes. Cool Down Timer Permits the dryer to run in the cool down mode for a maximum of 15 minutes. Cool down time starts at the conclusion of the drying time. Heat Selector Switch Controls the temperature during the drying cycle. Selections available are high temp, low temp, and permanent press, "Push to Start" Safety Device which must be manually Button pressed to start the dryer. Whenever the dryer is stopped by opening the main door during a cycle, the "Push to Start" button must be pressed to restart the dryer. Indicator Light Lights to indicate that the dryer is in B. the drying or cooling cycle. Operating Sequence 1. Turn drying timer knob to desired drying time. Turn cool down timer knob to desired cool down time. 2. Make temperature selection in accordance with the type of material being dried. 3. To start unit, press "Push to Start" button. NOTE: Main door must be closed. 4. The dryer will start, and the heat circuit will activate. The indicator Tight will come on. 5. The heat will come on and stay on until the tumbler reaches the temperature setting of the selected thermostat. The thermostat will open shutting off the heat. As the tumbler temp cools, the thermostat will reclose, turning on the heat. The dryer will operate in this manner for the duration of the drying time. At the completion of the drying time, the cool down time will start. The dryer will run without heat for the duration of the cool down time, 24 PHASE 3 OPL ©) S UE 0) (0) [0] "||" | American Dryer Corporation's latest advancement in Micro-processor Technology. 25 SECTION IV INTRODUCTION TO PHASE 3 Programmable All programming for the Phase 3 0.P.L computer is done through the computer keyboard and the programs are displayed for verification. Dip switches are eliminated to avoid the possibility of switch failure, due to an accumulation of lint or moisture. To enter the programs, a security code is entered into the computer, through the keyboard. The security code prevents unauthorized entry. Manually Loaded Cycles These cycles are not stored in the computer memory. They are entered by the operator when the cycle is needed. a. Automatic Mode - This program will cycle the dryer off when the pre-programmed dryness levels have been reached. The operator will enter the dryness levels (1-225 peaks) and the drying temperature. At the end of the drying cycle, the dryer will begin an automatic pre-programmed cooling cycle. be Manual Mode - In this program, the operator will enter the dry time (0-99 minutes), the cool down time (0-99 minutes), and the drying temperature. Drying Temperature Operating temperatures can be programmed from a minimum of 110° F. (45% C.) to 200% F. (90° C.) in 1° increments. Pre-Programmed Cycles The Phase 3 0.P.L. computer can store in its memory six (6) pre-programmed cycles (A through F on the keyboard) which are entered complete into the computer prior to operation. Any of these programs can be started by pressing one button. These pre-programmed cycles can be set in either the automatic or manual mode and are displayed at the beginning of each cycle start-up. System Parameters The function of the dip switches in our previous computers has been to set the basic system parameters. With the elimination of the dip switches, these parameters are now entered through the keyboard and stored in four program locations. These programs are entered only once and are called up at each cycle selection when required. 26 Pre-programmed Cycle Check To check the parameters of the pre-programmed cycles, without entering the program mode, the operator can open the tumbler loading door and press any of the pre-program keys (A through F on the keyboard). The cycle parameters will be displayed for verification only. A cycle will not begin with the door open. Temperature Conversion Status Temperature-related circuits are programmable to be operated in Fahrenheit or Celsius. Programs affected are: a. Temperature display mode b. Temperature selections C. Cool down temperatures L.E.D. Flash Display The display is programmable to allow the L.E.D. readout to display (while a cycle is in progress) a choice of cycle time or temperature. Programming also allows the L.E.D. readout to flash back and forth from cycle time to temperature, which can be set from 1-15 seconds. | If the temperature display program is not used, the temperature can be viewed through the L.E.D. display by pressing the enter/start button at any time while a cycle is in progress. Anti-Wrinkle Cycle This program helps keep permanent press items wrinkle free when they are not removed from the dryer promptly at the end of the drying and cooling cycle. Programming allows the dryer to automatically restart in the cool down cycle if the clothes are not removed in a pre-programmed amount of time. Anti-wrinkle program settings: a. Guard Delay Time: 15-4095 seconds in l-second increments. be Guard On Time: 10-63 seconds in 1-second increments. с. Maximum Guard Time: 1-127 minutes in l-minute increments. Audible Tone A tone will sound for each program entry. In addition, programming allows the tone to sound from 1-15 seconds at the end of the drying and cooling cycle to indicate that the cycle is complete, 27 Reversing Option Programming allows: a. Select Reverse or Always Reverse, or, in the case of the pre-programmed cycle, Reverse or No Reverse. be Stop Time - 4-19 seconds in 1-second increments. с. Spin Time - 30-93 seconds in l-second increments. Battery Back-up (option) Dryers ordered from the factory with the 9 volt battery back-up option (battery not included) allows the computer to maintain its operating status should a momentary power interruption occur while the dryer cycle is in progress. It is suggested that the battery be replaced at least once a year or as found necessary. The battery life will depend on the age of the battery, the amount of power interruptions, and back-up time used. | IMPORTANT For proper operation use alkaline batteries only. Suggest Eveready Energizer, Duracell, or equivalent. DO NOT USE CARBON TYPE BATTERIES. Diagnostics Al] major circuits, including door, micro-processor, temperature sensor, heat, and motor circuits, are monitored. 28 TUMBLER LeE.D. SECTION V DISPLAY CODES MOTOR INDICATOR GAS VALVE CIRCUIT IND. (HI/LO Only) HEAT CIRCUIT IND. BLOWER MOTOR IND. № ГГ oo “am жена TING MODE AUto ArEV Tine tenp CYCL--tine d donE door dr drY--LvL dry tenp dSFL F °FAr FILL FLS GdLY Gon Grd LC Ld Automatic Mode Always Reverse Buzzer (tone) Buz Time Degree in Celsius Cool Down Cycle in Progress Cool Down Time Cool Down Temperature Pre-programmed Cycle A ma CM Cycle Display Time Dryness Level (auto peaks) Drying or Cooling Cycles Complete or Dryer is in Anti-Wrinkle Cycle Door Circuit is Open Drying Cycle in Progress Dryness Level (auto peaks) Drying Temperature Dryer Sensor Circuit Failure Fabric (temperature) Degree in Fahrenheit No Cycle in Progress Flash Display Active Anti-Wrinkle Delay Time Anti-Wrinkle On Time Anti-Wrinkle Program Active Load Cool Down Time Load Drying Time 29 nAnU Manual Mode nGrd Maximum Guard Time nbUZ No Buzzer (tone) nFLS No Flash Display nGrd No Anti-Wrinkle Cycle nrEV No Reverse ProG Program Mode rEV Reverse Spin--tine Spin Time SrEV Select Reverse StoP--tine Stop Time tEnP Temperature tEnP--tine Temperature Display Time tint Time L.E.D. Indicator Dots Tumbler Motor Indicator When lit, the computer is telling the tumbler motor to spin. On reversing dryers, this light will go out when the computer stops the tumbler motor before reversing the motor's direction. Gas Valve Circuit Indicator For hi/lo gas dryers, this dot is on whenever the computer calls for heat. For electric, steam, and non-hi/lo gas dryers, this dot serves no purpose. Heat Circuit Indicator For electric, steam, and non-hi/lo gas dryers, this dot is on whenever the computer is calling for heat. For hi/lo gas dryers, this dot being on indicates a call for hi-fire gas flow. Blower Motor Indicator This dot lights whenever the computer calls for the blower motor to come on, 30 NOTE: SECTION VI OPERATING INSTRUCTIONS (PHASE 3 O.P.L.) Unless otherwise specified at the time of ordering, the Phase 3 0.P.L. computer has been pre-programmed by the factory with the parameters shown on pages 53 and 54. Should program changes be found necessary, please read this manual carefully to thoroughly familiarize yourself with the Phase 3 programming characteristics. Manually-Operated Timed Mode When turning on power or when no cycle is in progress, the L.E.D. display will read "FILL". Press key number 5. Select cycle drying time. Display will read "Ld ". Enter the drying time desired in the two blank spaces. Press enter/start key. Select cycle cool down time. Display will read "LC". Enter the cool down time desired in the two blank spaces. Press enter/start key. Select cycle drying temperature. Display will read "Е ", Enter the drying temperature desired in the three blank spaces. Press enter/start key. (For reversing dryers in select reverse mode only) Display will read "Sr ". Press enter/start key to begin a reversing cycle and 0 to begin a non-reversing cycle. When the dryer starts, the display will read "dr" and the drying time selected. The drying time will count downward in one-minute increments. When the drying time has counted down to zero, the coo] down cycle will begin. The display will read "CL" and the amount of cool down time selected. The cool down time will count downward in one-minute increments. Upon completion of drying and cooling cycles, the tone will sound, and the display will read "donE" at which time the dryer will shut off. NOTE: a. If the anti-wrinkle program is active, the display will remain reading "dont", and the computer will proceed through the anti-wrinkle program until the maximum Guard On Time has expired or until the door is opened, whichever comes first. The display will read "FILL", 31 С. be If the anti-wrinkle program is not active or in use, the display will read "FILL". Manually-Operated Automatic Mode When turning on power or when no cycle is in progress, the L.E.D. display will read "FILL", | Press key number 2. Select cycle drying temperature. Display will read "Е ". Enter the drying temperature required in the three blank spaces. Press enter/start key. Select number of dryness levels. Display will read “d "« Enter dryness levels required in the three blank spaces. Press enter/start key. (For reversing dryers in select reverse mode only) Display will read "Sr “". Press enter/start to begin a reversing cycle and 0 to begin a non-reversing cycle. When the dryer starts, the display will read "dr00". The drying time will count upwards in one-minute increments until the selected number of dryness peaks (levels) is reached. When the drying cycle is completed, the dryer will go into the cool down cycle. The display will read "CLOO", and the time will! count upward in one-minute increments until the preset cool down time or temperature is reached. Once the pre-programmed drying time and cool down period have been reached, the tone will sound, and the display will read "donE" at which time the dryer will shut off. NOTE: a. If the anti-wrinkle program is active, the display will continue to read "donE", and the computer will proceed through the anti-wrinkle program until the maximum Guard On Time has expired or until the door is opened, whichever comes first. The display will read "FILL", be If the anti-wrinkle program is not active or in use, the display will read "FILL", Pre-programmed Cycles 1. All programming for the pre-programmed cycles is already complete. Simply press the letter on the keyboard corresponding to the cycle desired (A through F), and the cycle will begin, 32 NOTE: The anti-wrinkle program will operate identical to manually entered programs. D. Stopping the Dryer To check on the dryness of a load during a drying or cool down cycle, simply open the door, To restart the dryer after checking the load, close the door and press the "start" touchpad. The computer will then continue with the drying and cool down cycle. The dryer can also be stopped by pressing the "stop" touchpad. The display will return to "FILL". | 33 SECTION VII INTRODUCTION TO PROGRAMMING To enter the program mode to access either the four (4) program locations (basic system parameters) or the six (6) pre- programmed cycles, the security code must be entered. The procedure for entering the security code is as follows: First, make sure that no cycle is in progress and that the display shows "FILL", Then, press the enter/start key once and the 0 key three times. The three zeros must be entered within two seconds after pressing enter/start. If this sequence is not entered correctly, the computer will deny access into the program mode. If the code is entered correctly, the computer will display "ProG". From this point, any of the program locations or pre-programmed cycles can be accessed. Programming of System Parameters The four (4) program locations containing the system parameters are located at keys 2, 5, 8, and 0 on the keyboard. Touching any of those keys when the display reads "ProG" will access that particular program. | The parameters stored in each location are listed on page 35. All of these parameters affect the manually-loaded program cycles, and some affect the pre-programmed cycles. The chart on page 35 also shows which parameters affect which programs. To alter the programming of the program locations, the operator will first locate the parameter he wishes to change. If the change is a numerical one (time or temperature), the operator will simply enter the numerical value desired. If the change is a status change, such as changing the temperature readout from °F. (degree Fahrenheit) to °C. (degree Celsius), the operator will press the 0 key. This zero key acts as a flip-flop switch to change the programming of a parameter, The actual programming steps are covered in the flow charts in Section VIII. These parameters will be preset at the factory and may suit your needs as is. The preset parameters are listed on pages 53 and 54, and the limits for these parameters are listed on page 54. 34 Phase 3 0.P.L. Program Locations Program Location 1 (Key 2) Programs Affected Temperature Conversion Status (°F. or °C.) MLC & PPC Select Reverse or Always Reverse MLC only Reversing Stop Time (Dwell) MLC only Reversing Spin Time MLC only Program Location 2 (Key 5) Flash or No Flash - (Time MLC & PPC (Temperature Cool Down Temperature MLC only Cool Down Time | MLC only Flash Cycle Display Time MLC & PPC Flash Temperature Display Time MLC & PPC Program Location 3 (Key 8) With or Without Anti-Wrinkle Feature MLC only With or Without Anti-Wrinkle Buz (Tone) MLC & PPC Maximum Anti-Wrinkle Time MLC & PPC Anti-Wrinkle On Time MLC & PPC Program Location 4 (Key 0) Anti-Wrinkle Delay Time (Dwell) MLC & PPC Buz (Tone) Time MLC & PPC MLC - Manually-loaded Cycles PPC - Pre-programmed Cycles Programming of Pre-programmed Cycles The six (6) pre-programmed cycles are located at keys A through F on the keyboard. Touching any of those keys when the display reads "ProG" will access that particular cycle. The actual programming steps are covered in Section VIII under flow chart A, The following chart lists the parameters which are programmed in these cycles: Pre-programmed Parameters (Keys A-F) Cycle Status (manual or automatic) Anti-Wrinkle Feature Status (active or off) Cycle Drying Temperature Number of Dryness Levels (automatic cycles only) Cycle Drying Time (manual cycles only) Cycle Cool Down Time 35 Minimum Cool Down Temperature (automatic cycles only) Reversing Status (reversing dryers only) After programming a pre-programmed cycle, the operator then has a choice of entering any of the other pre-programmed cycles or program locations or, by pressing clear/stop on the keyboard, exiting the program mode, | Once the program has been stored in the memory and the computer is out of the program mode, the operator can begin that cycle by pressing the corresponding letter on the keyboard. An actual example for programming a pre-programmed cycle is shown on page 41, The pre-programmed cycles are preset at the factory and may already suit your needs without having to reprogram. The preset parameters are listed on pages 53 and 54. | | The limitations of the pre-programmed cycles are listed on page 54. Manually-Entered Programs There may be times when the six (6) pre-programmed cycles will not suit the needs of the operator. At that time, a manually-entered cycle can be used. This cycle can be set to run in the automatic or manual mode and will not be stored in the computer memory. | A11 the basic system parameters have already been entered into the four (4) program locations, and the dryer will operate from them. The only parameters that now have to be entered to begin a cycle are certain specifics, such as drying time and temperature. The exact parameters are listed as follows: Manually-entered Automatic Cycles (Key 2) Cycle Drying Temperature Number of Dryness Levels Reversing Status (reversing dryers set in select reverse mode only) Manually-entered Manual Cycles (Key 5) Cycle Drying Time Cycle Cool Down Time Cycle Drying Temperature Reversing Status (reversing dryers set in select reverse mode only) 36 SECTION VIII FLOW CHARTS This section explains the programming of the pre-programmed cycles and the system parameters through flow charts. A flow chart is nothing more than a diagram of the programming process. Two different symbols will be used in the flow charts - a rectangle C3 and an oval CD) . Each rectangle will represent a readout on the computer display, and each oval will represent a key pressed. For instance, if the flow chart shows the symbol , the computer readout will display the same. Also, if the flow chart Shows Start » You will press that key, on the label. The flow chart arrows represent the program path. The following is an index for the flow charts: Program Flow Chart Page ........ 38 . 0.0.0.0. 0 41 ........ 44 ........ 46 Pre-programmed Cycle ® 6 606000000000 0¢00008000 Example of a Pre-programmed Cycle ...scosom. Program Location 1 ...eeecscccocooooooooo. Program Location 2 ...eecosoocoococcoooooooo. Program Location 3 ...ocooococoacooaocaoooo . 0000.00 48 Program Location 4 ....eeossooccoocoooooooo ........ 50 Manually-entered Automatic Cycle 00.0.0... G ........ 51 Manually-entered Manual Cycle 0... H +... 52 MM OO WO > 37 PRE-PROGRAMMED CYCLE PROGRAMMING FLOW CHART A Enter Program (AUTOMATIC CYCLE) (MANUAL CYCLE) ANTI- ANTI- WAINKLE WAINKLE ACTIVE OFF CYCLE DRY ING TEMPERATURE AUTOMATIC MANUAL MODE MODE AUTOMATIC dry MANUAL CYCLE CYCLE DRYNESS | DRY ING V LEVEL = TIME XX | | ‘ fCont .) CYCLE COOL DOWN TIME AUTOMATIC MANUAL MODE MODE CYCLE COOL DOWN TEMP (REV .) (NON-REVERSING) DRYER DRYER (REVERSING) NrEv ft (NON-REVERSING) TUMBLER DWELL TIME (Cont) 39 TUMBLER SPIN TIME ProG FILL 40 FLOW CHART B EXAMPLE OF A PRE-PROGRAMMED CYCLE Program a cycle with the following parameters: 1. Enter cycle under program A. 2. Set a manual cycle. 3. Set Anti-Wrinkle active. 4. Set the drying temperature at 180° F. 5. Set the cycle drying time at 30 minutes. 6. Set the cycle cool down time at 3 minutes. 7. Set the dryer in the reversing mode. B. Set tumbler dwell time at 4 seconds. 9. Set tumbler spin time at 56 seconds. Enter Program Code SELECT MANUAL MODE SELECT GUARD ACTIVE 41 (Cont .) ary CYCLE DRY ING EMP TEMPERATURE F 190 (ENTER KEYS 1-9-0) CYCLE DAY ING TIME t IME (ENTER KEYS 3-0) COOL CYCLE COOL DOWN TIME t IME (ENTER KEYS 0-3) SELECT | y а | REVERSINO rev |_NPrEv | (Cont .) ÿ 42 TUMBLER DOWELL TIME (ENTER KEYS 0-4) TUMBLER SPIN TIME (ENTER KEYS 5-6) ProG Clear Stop FILL E 43 PROGRAM LOCATION 1 Enter Program Code | man 2 SECONDS) PraG 2 и DISPLAY Far EX o EA DISPLAY E Far o) | | CEL *ceLstus | { ] (REVERSING) Am (NON—-REVERS ING) FLOW CHART C (PROGRAM CODE) ALWAYS | | SELECT pees | Artv SrEv eer | TUMBLER OWELLL ME TIME TUMBLER SPIN TIME t IME (Cont .) 44 ' FILL 45 | DISPLAY FLASH ACTIVE PROGRAM LOCATION 2 FLOW CHART D Enter Program Code > J | DISPLAY fs EX o Y nas Er oer FILL ProG = (WITHIN 2 весомое — (PROGRAM CODE) 46 ALWAYS ALWAYS DISPLAY LEMP О t IME DISPLAY TEMP. TIME Ente Start | 5 COOL COOL DOWN TEMPERATURE tEMP F XXX COOL DOWN TIME (Cont.) DISPLAY rssh] Fa FLASH Enter ACTIVE OFF Start | _ CYCL CYCLE DISPLAY T E IME IME XX TEMPERATURE DISPLAY E IME TIME XX Enter start | Prob | С1еаг Stop FILL 47 PROGRAM LOCATION 3 Enter Program Code | FILL (PROGRAM CODE) на (WITHIN 2 SECONDS) FLOW CHART E ProG nGrd ANTI-WRINKLE | | rd EX 92 E— | ACTIVE | | Enter Start SIGNAL | SIGNAL TONE TONE ACTIVE pur o XT nobus OFF Enter Start MO MET | E MAXIMUM ACTIVE GUARD t IME TIME XXX Enter Start | © on GUARD ON TIME t IME ANTI- WRINKLE OFF (Cont .) ProG Clear Stop FILL 49 PROGRAM LOCATION 4 | FLOW CHART F FILL (PROGRAM CODE) Enter Program Code О . Gal Y GUARD DELAY E IME TIME | XXXX | Enter Start bUZ SIGNAL TONE TIME t IME XX is Clear Stop FILL 50 WILL BEGIN A NON-REV. CYCLE MANUALLY ENTERED AUTOMATIC CYCLE | SELECT REV. MODE FILL NO YES Sr WILL BEGIN Enter A REVERSING CYCLE WILL BEGIN FLOW CHART G ENTER DRYING TEMPERATURE ENTER NUMBER OF DRYNESS LEVELS ENTER NON-REV. REV. MODE OR DRYER 51 NO WILL BEGIN A NON-REV. 0 CYCLE MANUALLY ENTERED MANUAL CYCLE FLOW CHART H SELECT REV. MODE Sr FILL Manu 5 | ENTER CYCLE LaXX DRYING TIME ENTER CYCLE COOL DOWN Lexx | \TIME (SE CYCLE | F XXX DAYING TEMPERATURE | ALWAYS NON-REV. REV. MODE OR DRYER YES WILL BEGIN A REVERSING Start CYCLE Enter CYCLE WILL BEGIN 52 I. Factory PHASE 3 O.P.L. PARAMETERS Preset Programs (Reversing Dryers) Cycle A Cycle B Cycle C Cycle d Cycle E Cycle F Automatic Mode, Anti-Wrinkle active, Dry Temperature 190°F., Dryness Level 30, Cool Down Time 6 minutes, Cool Down Temperature 100°F., No Reverse. Automatic Mode, Anti-Wrinkle active, Dry Temperature 190°F., Dryness Level 20, Cool Down Time 4 minutes, Cool Down Temperature 100°F., No Reverse. Automatic Mode, Anti-Wrinkle active, Dry Temperature 160°f., Dryness Level 20, Cool Down Time 4 minutes, Cool Down Temperature 100%., No Reverse. Manual Mode, Anti-Wrinkle active, Dry Temperature 190°F., Dry Time 40 minutes, Cool Down Time 6 minutes, No Reverse. Manual Mode, Anti-Wrinkle active, Dry Temperature 180°F., Dry Time 30 minutes, Cool Down Time 4 minutes, No Reverse. Manual Mode, Anti-Wrinkle active, Dry Temperature 170% ., Dry Time 10 minutes, Cool Down Time 2 minutes, No Reverse. System Parameters Program Location 1 Temperature Conversion Status set in Fahren- heit, Reverse, Stop Time 8 seconds, Spin Time 45 seconds. Program Location 2 No Flash, Display Time, Cool Temperature 100°F Cool Time 6 minutes, Cycle Display Time 15 seconds, Temperature Display Time 1 second. Program Location 3 Anti-Wrinkle active, Buzzer (Tone) active, Maximum Anti-Wrinkle Time 10 minutes, Anti-Wrinkle On Time 20 seconds. Program Location 4 Anti-Wrinkle Delay Time 90 seconds, Buz Time 7 seconds. de Factory Preset Programs (Non-reversing Dryers) Cycle A Automatic Mode, Anti-Wrinkle active, dry temperature 190°F., Dryness Level 30, Cool Down Time 6 minutes, Cool Down Temperature 100°F, 53 Cycle B Automatic Mode, Anti-Wrinkle active, Dry Temperature 190°F., Dryness Level 20, Cool Down Time 4 minutes, Cool Down Temperature 100°F, Cycle C Automatic Mode, Anti-Wrinkle active, Dry Temperature 160°F., Dryness Level 20, Cool Down Time 4 minutes, Cool Down Temperature 100°F, Cycle d Manual Mode, Anti-Wrinkle active, Dry Temperature 190°F., Dry Time 40 minutes, Cool Down Time 6 minutes, Cycle E Manual Mode, Anti-Wrinkle active, Dry Temperature 180°F., Dry Time 30 minutes, Cool Down Time 4 minutes. Cycle F Manual Mode, Anti-Wrinkle active, Dry Temperature 170% ., Dry Time 10 minutes, Cool Down Time 2 minutes. System Parameters Program Location 1 Temperature Conversion Status set in Fahren- heit. Program Location 2 No Flash, Display Time, Cool Down Temperature 100°F., Cool Down Time 6 minutes, Cycle Display Time 15 seconds, Temperature Display Time 1 second. Program Location 3 Anti-Wrinkle active, Buzzer (Tone) active, Maximum Anti-Wrinkle Time 10 minutes, Anti- Wrinkle On Time 20 seconds. Program Location 4 Anti-Wrinkle Delay Time 90 seconds, Buz (Tone) Time 7 seconds. K. Programming Limits System Parameters Stop Time 4-19 seconds in l-second increments Spin Time 30-93 seconds in l-second increments Auto Cool Temperature 70°-100°F. or 25°-40°C. in 10°F, or 5°C. increments Auto Cool Time 0-15 minutes in 1-minute increments Cycle Display Time 1-15 seconds in 1-second increments Temperature Display Time 1-15 seconds in 1-second increments 54 Guard On Time Guard Delay Time Maximum Guard Time Buz Time 10-63 seconds in l-second increments 15-4095 seconds in l-second increments 1-127 minutes in l-minute increments 1-15 seconds in l-second increments Pre-programmed Cycles Dry Temperature Dry Time (manual) Cool Temperature (auto) Cool Time (manual) Cool Time (auto) Stop Time Spin Time Dryness Level 110°-200°Е. or 45°-90°C. in 1° increments 0-127 minutes in 1-minute increments 70°-100°Р. ог 25°-40°C,. in 10°F. or 5°C. increments 0-31 minutes in 1-minute increments 0-14 minutes in 2-minute increments 4-19 seconds in l-second increments 30-93 seconds in l-second increments 1-127 peaks in l-peak increments Manually-loaded Cycles Dry Temperature (auto) Dryness Level (auto) Dry Time (manual) Cool Time (manual) Dry Temperature (manual) 110°-200°Е. or 40°-95°C. in 1° increments 1-255 peaks in 1-peak increments 0-99 minutes in 1-minute increments 0-99 minutes in 1-minute increments 110°-200°F. or 40°-95°C. in 1° increments 55 SECTION IX HEAT/IGNITION/FLAME SAFETY CIRCUIT OPERATION A. Dual Timer Dryer Gas Valve System 1. Components and Operational Sequence This heat/ignition system consists of a single stage redundant solenoid gas valve, diode logic board, glo-bar, I.R. sensor, and drying timer. When the drying time and drying temperature have been selected and the dryer is started, the first solenoid (GV1) in the gas valve opens, and current is supplied to the glo-bar through the diode logic board. When the glo-bar reddens and reaches sufficient temperature, the I.R. sensor switch opens which opens the second solenoid (GV2) in the gas valve. This allows gas to flow through the gas valve into the burner tubes and be ignited by the glo-bar. The I.R. sensor switch remains open as long as there is flame in the burner. When the tumbler cavity reaches the selected drying temperature, the temperature sensing thermostat (located below the tumbler) will open, and the gas valve will shut off the gas flow. After 30-45 seconds, the I.R. sensor contacts and the temperature sensing thermostat switch will reclose, and the ignition cycle will be restarted. В. Computer-controlled Hi/Lo Gas Valve System 1. Introduction The computer-controlled hi/lo gas valve system developed by American Dryer Corporation is a new advancement in clothes drying. The system consists of a hi/lo gas valve, diode logic board, phase 3 computer, glo-bar, and I.R. sensor. With computer control of the gas valve, three stages of gas flow are available: gas on hi-fire, gas on lo-fire, and gas off. During dryer operation, when the tumbler cavity reaches the selected drying temperature, the computer cycles the gas valve between its hi-fire and lo-fire stages to maintain a constant drying temperature. The result of this constant drying temperature is a significant decrease in drying time and increase in dryer efficiency. 2. 1/2" Hi/Lo Gas Valve (Refer to illus. on next page) This valve contains the same two redundant on/off solenoid valves as the standard 1/2" gas valve, and these two solenoids operate in the same manner and sequence in both valves. The difference in the hi/lo valve is the addition of a hi/lo cap assembly located on top of the valve. This cap assembly, protected by a sheet metal cover, changes the gas flow from hi-fire to lo-fire. It cannot shut off gas flow; only the two 56 HI/LO GAS VALVE W/ SOLENOID COVER REMOVED TO VI ON DIODE LOGIC BOARD Om fe ® с TO V2 ON — DIODE LOGIC BOARD 9 < le |) О (TOP VIEW) | HI FIRE ADJ. SCREW LO FIRE ADJ. NUT TO HI/LO RELAY ON COMPUTER BOARD PRESSURE TAP PLUG | U /2_HI/LOW GAS VALVE (FRONT VIEW) redundant solenoids can do this. Removing its cover reveals a relay coil and lever arm with the hi-fire adjustment screw located at the lever arm's end. Power to the relay coil is supplied through the white plastic plug located at the bottom of the cap assembly base plate. When 115 volts are applied here, the relay coil pulls the lever arm down, and the valve is in the hi-fire stage. With zero volts to the relay coil, the arm lifts up, and the valve is in lo-fire. To increase the hi-fire gas flow, turn the hi-fire adjustment screw clockwise. Turn it counterclockwise for a hi-fire flow decrease. Lo-fire has been set at approximately 50 percent of hi-fire. To decrease the lo-fire flow, turn the Tlo-fire adjustment nut counterclockwise. Turning this nut clockwise will increase the lo-fire flow level. NOTE: If adjustment is required, apply Loctite or some other similar substance to the lo-fire adjustment nut to prevent vibrations from loosening it. NOTE: Adjusting the lo-fire flow will affect the hi-fire flow. When adjusting the gas flow, set the lo-fire flow first; then, adjust the hi-fire flow. | The gas valve is electrically controlled by six (6) wires. The four (4) wires that connect to the top of the valve control the two (2) on/off redundant solenoids, and the two (2) wires running into the white plastic plug control the hi/lo relay coil. 3. Operational Sequence (Computerized Hi/Lo System) When the dryer is started and both the heat circuit and gas valve circuit indicator dots in the computer display are on, the first on/off solenoid (GV1) in the gas valve opens, the valve is put into its hi-fire stage, and current is supplied to the glo-bar. When the glo-bar reddens and reaches sufficient temperature, the IR Sensor switch opens which opens the second on/off solenoid (GV2) in the gas valve. This allows gas to flow into the burners and be ignited by the glo-bar. TUMBLER MOTOR INDICATOR GAS VALVE CIRCUIT IND. (HI/LO Only) HEAT CIRCUIT IND. 0 Oo o Li Ly / TIME OPERATING _ MODE 58 0 Г Na ` Phase 3 HI LO Gas Valve Operation TEMPERATURE (F) Dryness Level o Ур #2 #3 74 5 Fo 77 170 | о 160 © 150 | 15 5ЕС5, — => ety 130° — > че 30 SECS. —e 1-15 SECS. —— e 45 ponent) — 110° SECS. — x p==-45 SECS. Valve cycles between Heat is off. high fire and low fire Glo-bar and |x| » every 15 seconds as the valve recyclé. 90° load becomes more dry. 0° TIME (Minutes) NOTE: THIS DIAGRAM DEPICTS A COMPRESSED DRYING TIME AND AN ARBITRARY CYCLING TEMPERATURE. * AFTER 15 SECONDS, VALVE GOES INTO LAW FIRE, BUT THE TEMPERATURE REMAINS AT OR ABOVE THE PRESET TEMPERATURE IN LOW FIRE, THE TIMING CIRCUIT ON THE COMPUTER BOARD TAKES OVER, ALLOWING THE LOY FIRE TO REMAIN ON FOR ANOTHER 37 SECONDS. IF THE TEMPERATURE IS STILL AT OR ABOVE THE PRESET TEMPERATURE, THE VALVE TURNS THE GAS OFF COMPLETELY. ** GLO-BAR IGNITES BURNER. VALVE IS IN HIGI FIRE. 59 When the tumbler cavity reaches the selected drying temperature, the computer display heat circuit indication dot goes off, and the gas flow is reduced to lo-fire for 15 seconds. At the end of this 15-second period, the computer checks the tumbler temperature. If the tumbler temperature has dropped below the selected drying temperature, then the computer returns the gas valve to its hi-fire stage, and the heat circuit dot comes back on. Hi-fire remains on until the selected drying temperature is again reached at which point, the lo-fire stage is again activated. This hi-fire/lo-fire cycling will continue as long as the tumbler's temperature is below the selected drying temperature at the end of the 15-second lo-fire stage. As the clothes in the tumbler get dryer, lo-fire gas flow will eventually produce enough heat to keep the tumbler at or above the selected drying temperature. When at the end of the 15-second lo-fire period the tumbler's temperature is equal to or above the selected drying temperature, the computer keeps the gas valve in its lo-fire stage for approximately 30 more seconds. At the end of this additional 30-second period of lo-fire, the computer again checks the tumbler's temperature. If the tumbler's temperature has dropped below the selected drying temperature, then the hi-fire stage is turned back on. If, however, the tumbler's temperature is still above the selected" drying temperature, then the gas flow is shut off. (Both the heat circuit and gas valve circuit dots will be off.) At this point, the glo-bar ignition sequence is restarted. The dryer will continue to operate until either the drying time runs out (computer in manual mode) or the preset number of drying cycles (dryness level) have been run (automatic mode). 4. Manual Mode of Drying The manual mode is simply based on time. The drying time and cool down time are selected, and the dryer runs for this length of time before stopping. 5. Automatic Mode of Drying (Computer Dryers Only) The automatic mode of drying is based on counting dryness levels to determine when the load is dry. The computer does not shut off the dryer after a certain amount of time has elapsed but will stop the dryer after the selected number of dryness levels (or peaks) have been reached. Refer to the temperature/time curve on the previous page. When the dryer first starts, hi-fire gas flow stays on until the selected drying temperature is reached (170° on this curve). Then, the computer switches the gas valve to its lo-fire stage. This is dryness level number one. Lo-fire stays on for 15 seconds, and the tumbler temperature drops. Hi-fire is then 60 turned on again. After a short time, the selected drying temperature is again reached, and the computer again switches the gas valve to lo-fire flow. This is dryness level number two. Whenever the computer switches the gas valve from hi-fire to lo-fire, it counts one dryness level. In this temperature/time curve there are seven dryness levels. If you are going to operate in the automatic mode, you must first establish what dryness levels you need for the types of loads you will run. For example, if you dry 75-1b. loads of terry towels, this may require a dryness level of 35. The desired dryness level can only be established by running a series of these loads in the dryer using different dryness levels until you establish the dryness level that gives you the drying results you desire. If you also dry 80-1b. loads of sheets, you may find that this type of load requires a dryness level of 25. This dryness level would be established by running a series of loads at different dryness levels to determine the level which gives the drying results you desire. You will have to establish the dryness level for each various type of load you run in the dryer. 61 С. Ignition/Flame Safety Components 1. Glo-bar The glo-bar is a silicon carbide hot surface ignitor, which will become red hot when 120 volts is applied across it. Once flame is established in the burner, the voltage across the glo-bar drops to about 2 volts. This keeps the glo-bar relatively cool and lengthens its life. When the glo-bar is cool, the resistance across it will measure from 45-70 ohms. 2. IR. Sensor The I.R. sensor is a normally closed "infrared" bimetal switch which acts as an ignition system safety device. The Г.К. sensor switch opens when the glo-bar reaches a sufficient ignition temperature and is kept open by the flame in the burner box. If there is a failure to establish flame at ignition or if there is a failure to hold the flame after ignition, the I.R. sensor switch will reclose after about 45 seconds, which will close gas valve solenoid V2 and shut off the gas flow. A new ignition sequence will now be restarted. 3. Diode Logic Board All of our model ADG-100 gas dryers are equipped with a diode logic (EQS0) board. This board controls the ignition sequence and the flame safety characteristics of the dryer. Terminal Control Marking Function | O UT +— pa o Ll, L2 Line Voltage —— a CRI CR2 V2 Gas Valve — | LI «=n Solenoid V2 va Ra CR3 V1 Gas Valve ета "Rs ‚ FS === Solenoid V1 FS rs 7 L2 VI 1G Glo-bar (Ignitor) Vi o II LI Moo FS Sensor w I.R. (flame switch) On a call for heat, 120 volts is supplied across the L1 and L2 terminals of the diode logic board, starting the ignition sequence. 62 a. Ignition Sequence Trouble Shooting To locate any breakdown in the ignition system, voltage measurements can be taken at the terminals of the diode logic board. Tables of these voltage readings at different times in the ignition sequence follow. The first table is for dryers with a single stage gas valve. The second table is for hi/lo gas valve dryers. DIODE LOGIC BOARD TROUBLE SHOOTING CHART FOR DUAL TIMER DRYER Diode Logic Board Terminals Dryer is started and calls for heat; 120 volts is applied across L1 and L2 terminals of diode logic board; gas valve solenoid V1 opens and glo- bar reddens. 120V -L1 & L2 V2 pv Vi 60-70V 16 110-120V DV IR sensor opens; gas valve solenoid V2 opens; gas flows through valve and ignites. 120V 60-70V 18-30V 1-2V 120V Tumbler reaches selected temperature ; operating thermostat opens ; voltage between L1 and L2 drops to @V; voltage remains PV for 30 to 45 seconds until IR sensor recloses. DV pv PY pv pv 63 DIODE LOGIC BOARD TROUBLE SHOOTING CHART FOR PHASE 3 COMPUTER DRYER Refer to the technical data section of this manual for additional information on the diode logic control system. Diode Logic Board Terminals Ll & L2 V2 vi 16 FS Hi/Lo Coil Dryer is started and calls for heat; 120 volts is applied across L1 and L2 terminals of diode logic board; gas valve solenoid V1 opens, and glo-bar reddens. *Heat indication dot is on. *Gas valve circuit det is on. 120V DV 60-70V 110-120V 120V IR sensor opens; gas valve solenoid V2 opens; gas flows through valve and ignites. *Heat indicator dot is on. *Gas valve circuit dot is on. 120V 60-70V 18-30V 1-2V 120V 120V Tumbler reaches selected temperature; hi/lc relay on computer board opens dropping voltage to hi/lo relay coil on gas valve to Y volts. Gas flow drops to lo-fire. *Heat indicator dot is off. *Gas valve circuit dot is on. 120V 60-70V 18-30V 1-2V 120V DV Computer calls for heat to be shut off; $? volts is applied between Ll and L2 terminals of diode logic board. *Heat indicator dot is off. *Gas valve circuit dot is off. pv DV pv pv OV Ov 64 SECTION X MOTORIZED STEAM VALVE (High Pressure Steam Only - 125 psi) This is a slow opening and closing valve (6 seconds) meant to reduce water hammer on the coil and thereby increase coil life. The motor requires power to open the valve and power to close the valve. So, if main power to the dryer is shut off when the valve is opened, it will remain in that position. The motor for the valve operates on 120 volts, and there will be an internal transformer supplied in the dryer to supply this voltage. Steam flow through the valve must be in the direction of the arrow on the valve body. | On a call for heat, power is supplied through the steam relay to the motor of the steam valve. The motor will spin for 90° before stopping. Micro-switches (located underneath the cover of the steam valve motor) are what stop the motor. If the motor does not stop in the proper position or if it does not stop at all, then these micro-switches have to be checked for alignment and continuity. NOTE: Shaft protruding through top of motor can be used to manually spin steam valve, Shaft must be pressed downward to disengage clutch before it can be spun. TROUBLE SHOOTING THE MOTORIZED STEAM VALVE Trouble Probable Cause Actuator stops 1. Interruption of power to steam valve operating motor 2. Interruption of power to steam valve motor relay 3. Ball jammed in valve Make sure that the computer or dual timer control is calling for heat. If there is no power to the steam valve motor, check for broken wires, defective steam relay, or defective computer or drying timer. If there is power to the motor and it will not turn, there are two possible causes. The ball might be jammed in the valve. Disconnect the motor from the valve and see if it now spins. If it still will not spin, it is possible that the internal micro-switches which stop the motor after it spins 90° are out of alignment. Trouble Probable Cause Actuator spins but 1. Internal micro-switch out of does not stop at 90° adjustment Refer to page 131 for instructions for adjusting internal micro-switches. | 65 SECTION XI ROUTINE MAINTENANCE A. Cleaning A program 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 American dryer will provide many 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. Suggested Interval Function Daily Clean lint from the lint trap, screen, bottom, and walls of the lint chamber. Inspect lint screen and replace if torn. 90 Days Remove lint accumulation from lint chamber, thermostats, and sensor. WARNING: To avoid the hazard of electrical shock, discontinue electrical supply to the dryer. 90 Days Remove lint from the motor air vents and surrounding area. IMPORTANT: Lint accumulation will restrict internal motor air flow, causing overheating and irreparable motor damage. Motor failure due to lint accumulation will void the manufacturer's warranty. 120 Days Remove lint from gas burner area with a dusting brush or vacuum cleaner attachment. NOTE: To prevent damage, avoid cleaning or touching ignitor (glo-bar), 6 Months Inspect and remove lint accumulation in customer- furnished exhaust duct work system. Clean lint/dust accumulation from between fins of steam coil. 66 IMPORTANT: The accumulation of lint in the exhaust duct work can create a potential fire hazard. As required In the cleaning and care of the cabinet, avoid using harsh abrasives. A product intended for the cleaning of appliances is recommended. B. Adjustments Suggested Interval Function / Days after Inspect bolts, nuts, screws, non-permanent gas installation connections (unions, orifices, etc.), electrical and every terminals, and grounding connections. 6 months 6 Months Motor and drive belts should be examined. Cracked or seriously frayed belts should be replaced. Tighten loose belts when necessary, and check belt alignment. 6 Months Complete operational check of controls and valves. 6 Months Complete operational check of all safety devices (door switches, sail switch, burner and lint chamber thermostats). C. Lubrication + The motor bearings, idler bearings, and tumbler bearings are permanently lubricated, and no relubrication is necessary. Some tumbler bearings are equipped with grease fittings. Should lubrication ever be found necessary, use a general purpose lithium-based grease. (Do not use animal- or vegetable-based lubricants.) Do not overgrease. Be sure grease fitting is thoroughly cleaned of all foreign material before greasing. 67 SECTION XII PARTS MANUAL: TLLUSTRATIONS AND DESCRIPTIONS When ordering replacement parts from your distributor or the factory, specify the dryer model number and serial number in addition to the part description and part number, so that your order is processed accurately and promptly. When ordering replacement parts from the factory, credit card orders are accepted. Please refer to page 139 for detailed information. The illustrations on the following pages may not depict your particular dryer exactly. The illustrations are a composite of the various dryer models. Be sure to check the description of the parts thoroughly before ordering. Table of Contents Page Control Panel Assembly - Phase 3 computer ..asscocoocooo 70 Control Panel Assembly - Dual Timer ...escooccocccocoooo 72 Control Door Assembly 00000000 000000000 000000000000000 73 Front Panel and Main Door Assembly .....….….......... 74 Door Switch Assembly ...eonsovoccosccoocoocoreocoocorecce 75 Lint Door Assembly ...ososcoooocococoooccorocooocaocacoree 76 Lint Coop/Thermostat/Bracket Assembly ...sonmccooccocco 78 Tumbler Assembly 000000000000 00000000 00000000000000000 79 Tumbler Bearing Mount Assembly o..0000 000 0000000000000 80 Idler Bearing Mount Assembly ...ssorncocooccocooooocooo Bl Tumbler Motor Mount Assembly ..........0.......... 82 Blower Motor Mount Assembly ..................... 83 Motor Relay Box Assembly (Reversing, Computer) ....... 84 Motor Relay Box Assembly (Reversing, Dual Timer) ..... 85 Motor Relay Box Assembly (Non-reversing) ...cescoovcocooo 86 Gas Burner Assembly .e.ssoscccocdoososcoorococeacocecarooaco.o 88 Electric Oven Assembly 0000000000000 000000000000000000 90 Electric Oven Relay Box Assembly ...sconsococoococoooooo 92 Sailswitch/Burner High-limit Switch Assembly ........0. 93 Steam Coil Assembly ..soocooooocdoccooocoocoreocoaococa € Back Guard and Heat Reclaimer Assembly ...ssmneccoocoocoo 95 68 WEEZE == BE 11145. №. 1 ° > Oo (D O 4 OY On 10 11 12 13 14 15 16 17 18 CONTROL PANEL ASSEMBLY - PHASE 3 COMPUTER Part No. 112535 800057 800164 800161 800163 800160 800162 365088 865089 865090 865091 160005 137092 137093 137094 137095 137088 137089 137090 137091 151000 150002 120709 137013 137079 137061 137083 137061 152001 136052 132001 150300 140150 137020 137022 137021 150301 Qty. > > 3 3 2 | ES HA + — > 3 — |— о = PO DB не pd о СО ND DN) > = fb =O = ГО Description Label /Keyboard Assembly Control Panel Only Control Panel Only with Battery Bracket Complete Control Panel Assemblies: Phase 3 Non-rev. 115/230V Phase 3 Non-rev. 115/230V with Battery Opt. Phase 3 Non-rev. 208V Phase 3 Non-rev. 208V with Battery Option Phase 3 Reversing 230V Phase 3 Reversing 230V with Battery Option Phase 3 Reversing 208V Phase 3 Reversing 208V with Battery Option Latch Fastener Computer, Non-rev., 120/240V Computer, Non-rev., 120/240V with Battery Back-up. Computer, Rev., 120/240V Computer, Rev., 120/240V with Battery Back-up Computer, Non-rev., 208V Computer, Non-rev., 208V with Battery Back-up Computer, Rev., 208V Computer, Rev., 208V with Battery Back-up 6-32 Pal Nut 6-32x1" Round Head Machine Screw Terminal Strip (8-Position) Standoff Relay Board (Gas Hi/lo Dryers) Relay Board (Low Pressure Steam Dryers) Relay Board (High Pressure Steam Dryers) Relay Board (Electric Dryers) 8-32 Hex Nuts 4 Amp Fuse GB 208/220V Transformer (Gas and High Pressure Steam Only) 10x1/2 Hex Washer TEK Diode Logic Board (Gas Only) 15-Pin Connector Strain Relief Connector Socket 8-18x7/16 Phillips Head TEK Screw 70 Illus. Part No. No. 1 800081 800083 800051 2 122400 3 123000 123001 4 160005 5 13181? 131813 6 150207 7 120708 8 153017 9 152013 10 120709 11 15000? 12 124103 13 12402? 124023 14 124020 124021 15 112050 16 131030 131031 17 137013 18 140150 19 122602 122700 20 122603 122701 21 151000 22 150103 23 132002 24 131031 CONTROL PANEL ASSEMBLY - DUAL TIMER Qty. 1 HH Hp N FA CO = Сб += HH DH 3 HH > 3 № Г E PO NO E ON) A js E ja HH HH Description Dual Timer Control Panel Less Timers and Knobs, 110V Dual Timer Control Panel Less Timers and Knobs, 220V Dual Timer Control Panel only Rocker Switch ‘Indicator Light, 110V Indicator Light, 220V Latch Fastener Push to Start Switch, 110V Push to Start Switch, 220V 10-32x1/2" Round Head Machine Screw Terminal Strip, 3-Position #6 Steel Burr 6-32 Hex Nut Terminal Strip 6-32x1" Round Head Machine Screw Timer Knob Timer, 15 Minute, 120V, 50/60HZ Timer, 15 Minute, 230V, 50/60Hz Timer, 60 Minute, 120V, 50/60Hz Timer, 60 Minute, 230V, 50/60Hz Dual Timer Label Dual Timer Relay, 110V Dual Timer Relay, 220V Standoff (Gas Models Only) Diode Logic Board (Gas Models Only) 9-Pin Connector Only Pin Terminal Only 9-Pin Socket Connector Only Socket Terminal Only 6-32 Pal Nut 6-32x1/2" Pan Head Machine Screw Transformer, Motorized Steam Valve (not shown) Relay, Motorized Steam Valve (Not Shown) 72 Illus. Part No. No. Qt 1 800016* 2 112302 112314 112306 3 160005 4 154002 5 150300 * Specify color < LO MO го 2 2 => CONTROL DOOR ASSEMBLY Description Control Door Computer Dryer Nameplate Dual Timer Dryer Nameplate UniMac Dryer Nameplate Latch Fastener 1/8 Push-on Fastener 10x1/2" Hex Washer TEK 73 Illus. No. D O ONIS WD fd 11 12 13 14 15 16 * Specify color Part No. 300318* 150400 150700 150304 170210 170201 150401 306801 102100 800108* 800109* 300110* 300112* 150400 150402 102300 102200 117601 FRONT PANEL AND MAIN DOOR ASSEMBLY Qty. ‘Юн зон о СЛ OY Wr pi со = Description Right Hand Front Panel 10-24x1/2 Phillips Taptite #8 Counter Sunk Washer #8x3/4 Oval Phillips Head 35" Hinge Block 35" Main Door Handle 10-24x1-1/4 Phillips Taptite Magnet Keeper Magnets Solid Main Door Complete Assembly Solid Main Door Only Main Door Complete Assembly Convex Convex Glass Main Door Only 10-24x1/2 Phillips Taptite Door Switch Assembly (See following page) 10-24x5/8 Special Tr. Head 16-1/4 convex glass gasket 16-1/4 convex glass Door Gasket 74 Illus. No. WORST PWN) HH 10 COMPUTER DRYERS Part No. 313208 150400 152003 137006 121028 121027 132750 133345 170210 122705 122626 122100 Qty. 1 2 2 1 2 2 2 Ft. 2 Ft. 1 4 1 1 NON-COMPUTER DRYERS DOOR SWITCH ASSEMBLY Description Door Switch Bracket 10-24X1/2" Phillips Taptite Door Switch Nut Door Switch, Computer Dryers 1/4x.032 Insulated Terminal 3/16х. 032 Insulated Terminal 16 Gauge Wire 20 Gauge Twisted Pair Wire Hinge Block Socket Terminal 15-Pin Cap Housing Door Switch (Dual Timer Dryers) 75 LINT DOOR ASSEMBLY Illus. Part No. No. Qty. Description 1 800213* 1 Lint Door, Drop Type 2 160200 2 Knob Latch (With Screws) 3 160019 2 Adjustable Cam (With Screw) 800150 1 Knob Latch Kit (Includes Items 2 & 3) 4 117600 8 Ft. Noise Suppressor Tape (Sold by the Foot) * Specify color 76 ~ SENSOR BRACKET ASSEMBLY NON - COMPUTER DRYERS SENSOR BRACKET ASSEMBLY GOMPUTER _ DRYERS — Itlus. Part No. No. 1 800504 2 80041? 800413 3 150301 4 305007 —D 801403 6 801408 7 801425 8 130107 9 130109 10 130101 11 130100 12 130104 13 150001 14 153008 15 152000 16 880251 17 154007 18 122605 122701 19 831701 20 122604 21 122700 2? 154200 23 304025 24 130103 LINT COOP/THERMOSTAT BRACKET ASSEMBLY Qty. — H— N HH A > ps A e A A A — 2 $ +5 = = 5 3 Го Description Lint Screen Lint Screen Housing Lint Housing Complete Assembly 7/16 Self-Drilling Screw Sensor Mounting Bracket Only | Sensor Mounting Bracket (Dual-Timer Gas and Electric Dryers) Sensor Mounting Bracket (Dual-Timer Steam Dryers) | Sensor Mounting Bracket (All Computer Dryers) Thermostat, L-160 Thermostat, L-140 Thermostat, L-180 Thermostat, L-150 Thermostat, L-215 6-32x1/2" Right Hand Machine Screw #6 Lock Washer 6-32 Hex Nut Micro-processor Temperature Sensor Probe Assembly 1/4" Push-on Fastener 4-Pin Socket Connector Only Socket Terminal Only Jumper 4 Sensors 4-Pin Connector Only Pin Terminal Only Pop Rivets Hanger Bracket Thermostat, Hi Limit, L-225 Automatic Reset 78 Illus. Part No. No. 1 800607 2 800707 3 800807 4 150500 5 153014 6 153013 7 152009 8 100904 9 301300 10 150301 11 301700 12 301701 13 116004 14 401010 Qty. о - Ww 4» Го 4 60 00 ©) = EEE > ps TS pv A/R TUMBLER ASSEMBLY Description Tumbler Support Tumbler Only Tumbler & Support Complete 5/16 - 18x3/4" Socket Head Screw, Plated 7/16 Flat Washer 7/16 Lock Washer 7/16 - 14 Hex Nut 7/16 - 14x43" Tie Rod Tumbler Rib #8 - 18x7/16" #2 Self-Drilling Screw Tumbler Reinforcing Plate Shim Felt Band (Not Shown) Felt Band Adhesive 79 Illus. No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 — MN > A A Part No. 150602 153016 153015 152010 100204 150603 152011 801102 150600 153004 153005 152005 100801 103400 101111 101108 100104 \ В \ + ` NN (8) LO t+ < Го | == == ГО +5 ГО $5 45 на ГО го ГО 5 4 с0 + TUMBLER BEARING MOUNT ASSEMBLY Description 5/8-11X3" Hex Head Machine Bolt, 5/8 Flat Washer 5/8 Lock Washer 5/8-11 Hex Nut 2-1/4 Pillow Block Bearing 1/2-13x3" Square Head Machine Screw, Plated 1/2-13 Hex Nut Bearing Mount 3/8-16x1-1/2" Hex Head Machine Bolt, 3/8 Flat Washer 3/8 Lock Washer 3/8 Hex Nut 5/8 Retaining Ring Hinge Pin Tumbler Pulley 18" SK Bushing | A68 V-Belt Plated Plated 80 Illus. Part No. No. 1 150600 2 153004 3 153005 4 152005 5 100205 6 150510 7 153007 8 152002 9 103005 10 311401 11 150509 12 153001 13 153002 14 152004 15 100800 16 101112 101107 17 100102 18 101113 101110 19 100104 20 100401 21 801001 Qt y > AN HE NEE Сб СО 45 ГО = на Сл СО Со ГО р» + со IDLER BEARING MOUNT ASSEMBLY Description 3/8-16x1-1/2" Hex Head Machine Bolt, Plated 3/8 Flat Washer 3/8 Lock Washer 3/8 Hex Nut 1" Pillow Block Bearing 1/4-20X3/4 Hex Head Machine Bolt, Plated 1/4 Lock Washer 1/4-20 Hex Nut Idler Adjustment Hinge Idler Bearing Mount 5/16-18x3" 5/16 Flat Washer 5/16 Lock Washer 5/16-18 Hex Nut 1" Retaining Ring Idler Pulley 19" SK Bushing 75 V-Belt Idler Sheave 3" SK Bushing A68 V-Belt 1" Idler Shaft Idler Mount Complete (Pulleys, Bushing, and Belts Not Included) 81 Hex Head Machine Bolt, Plated 11145. №. > = = СО © СО = ОСЗ Сл оф с) ГО HH panned Го Part No. 150513 153001 153002 152004 150600 153004 153005 152005 150619 100029 101114 101120 101121 100102 TUMBLER MOTOR MOUNT ASSEMBLY Qty. pe ГО Ня = 2 > ==> 5 ГО D ON CO CO D Description 5/16-18x1" Hex Head Machine Bolt, 5/16 Flat Washer 5/16 Lock Washer 5/16-18 Hex Nut Plated 3/8-16x1-1/2" Hex Head Machine Bolt, Plated 3/8 Flat Washer 3/8 Lock Washer 3/8-16 Hex Nut 3/8-16x3" Hex Head Machine Bolt, Plated 3/4 HP Tumbler Drive Motor Motor Sheeve 2.65 Outside Dia. (60Hz Only) Motor Sheeve 3.15 Outside Dia. (50Hz only) 5/8 SK Bushing (50 and 60Hz) V-Belt 82 Illus. Part No. No. 1 120200 2 150501 3 153002 4 154000 5 152004 6 153002 7 153001 8 117600 9 800907 800913 10 100603 100605 11 153023 12 100705 13 153024 14 152006 15 100030 100023 16 831453 17 803891 803892 © c+ < . > ji A a LS $ 5 JH > > Fa a 1/AR 1 1/AR 2 1 1% 1 1 1 * * Super steam model BLOWER MOTOR MOUNT ASSEMBLY Ft. Description 3/8 90 Connector 5/16-18x3/4 Hex Head Machine Bolt, Plated 5/16 Lock Washer 5/16-18 Tinnerman 5/16-18 Hex Nut 5/16 Lock Washer 5/16 Flat Washer Noise Suppressor Tape (Sold in Feet) Motor Mount Only Motor Mount Only 16" Impeller 13" Magnesium Impeller (Super Steam) 3/4x1-1/2 Special Motor Washer 3/16x3/16"x1-3/8" Key 1/2x1-1/4x1/16 Flat Washer 1/2-20 Left Hand Jam Nut 1 HP 208/230//460/60/3 Motor 3 HP 208/230/460/60/3 Motor Blower Motor Harness 30 1 HP 208/230/460/3 Motor Mount Complete 3 HP 208/230/460/3 Motor Mount Complete (Super Steam) 83 ITlus. No. MOTOR RELAY BOX ASSEMBLY (Reversing, Computer) Part No. Fa Lo NV FH Hs OO 004 OY Un 3 — 12 13 150300 322808 150108 132401 132404 132408 151001 137060 137013 153002 152004 831708 322807 803671 803672 803673 150106 132400 132410 Qty. A 2 et DO PN) P= DN) = ND = OO мн по Description 10-32X1/2 Hex Head Self-Drilling Screw Cover Plate 8-32X1/2 Pan Head Machine Screw Reversing Contactor, 240V Reversing Contactor, 208V Reversing Contactor, 120V 8-32 Pal Nut Arc Suppressor Board Standoff 5/16 Lock Washer 5/16-18 Hex Nut Ground Wire Mounting Panel Only 208V, 50/60 Hz, Rev., Relay Panel Complete 240V, 50/60 Hz, Rev., Relay Panel Complete 380-480V, 50/60 Hz, Rev., Relay Panel Complete 8-32x1 Round Head Machine Screw Impeller Contactor, 240V Impeller Contactor, 120V 84 Illus. No. Bum» с On 10 11 12 MOTOR RELAY BOX ASSEMBLY (Reversing, Dual Timer) Part No. 150300 322808 150108 132401 132404 132408 151001 132200 132202 132400 132410 153002 152004 831708 322807 803662 803663 803664 803665 803666 803667 150106 Qty ГО 2 нь оо 3 он о => ND ND = pd 2 = ГО > 3 --> ON = OO Description 10-32x1/2 Hex Head Self-Drilling Screw Cover Plate 8-32x1/2 Pan Head Machine Screw Reversing Contactor, 240V Reversing Contactor, 208V Reversing Contactor, 120V 8-32 Pal Nut Reversing Timer, 220/60 Reversing Timer, 230/50 Impeller Contactor, 220V Impeller Contactor, 120V 5/16 Lock Washer 5/ 16-18 Hex Nut Ground Wire Mounting Panel Only 208V, 50Hz, Reversing, Relay Panel Complete 240V, 50Hz, Reversing, Relay Panel Complete 380-480V, 50Hz, Rev., Relay Panel Complete 208V, 60Hz, Reversing, Relay Panel Complete 240V, 60Hz, Reversing, Relay Panel Complete 380-480V, 60Hz, Rev., Relay Panel Complete 8-32X1 Round Head Machine Screw 85 MOTOR RELAY BOX ASSEMBLY (Non-reversing, Computer and Dual Timer) Illus. No. Part No. = NO + ID OO DUI 11 150300 322808 150106 132400 132410 151001 137060 137013 152004 153002 322807 803661 303660 303668 803669 303670 831708 Qty. = ГО ГО $ E? NON E ee OO bh > | e |3 Description 10-32X1/2 Hex Head Self-Drilling Screw Cover Plate 8-32x1 Round Head Machine Screw Motor Contactor, 240V Motor Contactor, 120V 8-32 Pal Nut Arc Suppressor Board (Computer Dryers Only) Standoff 5/16 Hex Nut 5/16 Lock Washer Mounting Panel Only Dual Timer Dryers: 208V, 50/60HZ, Non-reversing, Relay Panel 230V, 50/60Hz, Non-reversing, Relay Panel Computer Dryers: 208v, 50/60Hz, Non-reversing, Relay Panel 240V, 50/60Hz, Non-reversing, Relay Panel 380-480V, 50/60Hz, Non-rev., Relay Panel Ground Wire | 86 Heat Reciaimer Dryer Piping Illus. Part No. No. 1 806625 806626 806627 806628 806631 806632 806629 806630 2 318364 3 142807 4 141300 5 142701 6 142601 7 142511 8 142703 9 140010 140011 140005 140411 10 318317 11 141208 12 140830 140816 140829 140815 13 141107 14 150002 15 153017 16 319509 17 128910 18 151000 19 150103 20 813319 21 130500 22 153012 23 152001 24 318318 25 150301 26 150300 27 142504 Qty. pad ON DDN) 2 pm AA UI OU II IN) es HH 6 > HH HN te A GAS BURNER ASSEMBLY Description Dual Timer Dryer: Burner Box Assy., Burner Box Assy., Burner Box Assy., Burner Box Assy., Non-heat Recl., Nat. Gas Non-heat Recl., L.P. Heat Recl., Nat. Gas Heat Recl., L.P. Computer Dryer: Burner Box Assy., Non-heat Recl., Nat. Gas (Hi/Lo) | | Burner Box Assy., Non-heat Recl., L.P. (Hi/Lo) Burner Box Assy., Heat Recl., Nat. Gas (Hi/Lo) Burner Box Assy., Heat Recl., L.P. (Hi/Lo) Pipe Bracket (Not 3/4"x40" Long Pipe Shown) 3/4" Shutoff 3/4" Close Nipple 3/4" Union 1/2"x3/4" Reducing Elbow 1/2"x4" Long Pipe Gas Valve, Hi/Lo, Natural Gas Gas Valve, Hi/Lo, L.P. Gas Valve, Non-Hi/Lo, Natural and L.P. Gas L.P. Conversion Kit (For 140005 Gas Valve) Pipe Bracket Manifold, 3-Port Orifice, Non-heat Recl., Nat, Gas (#17 Drill). Orifice, Non-heat Recl., L.P. (#36 Drill) Orifice, Heat Reclaimer, Nat. Gas (#18 Drill) Orifice, Heat Reclaimer, L.P. (#37 Drill) Burner Tube, Ribbon Type 6-32x1" Round Head Machine Screw #6 Steel Burr Glo-bar Mounting Bracket Glo-bar 6-32 Pal Nut 8-32x1/2" Pan Head Machine Screw IR Sensor Mounting Bracket IR Sensor #8 Star Washer 8-32 Hex Nut Burner Brace #8-18x7/16 Phillips, Pan Head, TEK, #10x1/2 Self-Drilling Screw 3/4" Elbow (Heat Reclaimer Burners Only) Plated 88 Illus. Part No. No. 1 120081 2 120080 3 152008 4 121011 5 153009 6 121010 121010 7 802800 802801 8 105500 9 319202 10 154002 11 150300 12 154004 13 802799 14 122200 15 150303 16 130400 17 150301 18 803101 19 150300 20 120006 120007 120008 120009 21 80300? 815800 815802 815805 815806 22 321403 23 802802 Qty. ~ WwW Ww nN OY OY но ГО E bed fd pd pd fd ped AD NON OY FPO NO Fa PN) Foes 2 = = (OOO OY е- ELECTRIC OVEN ASSEMBLY Ft. Description Internal Ceramic Insulator External Ceramic Insulator 10-32 Hex Nut Bus Bar (Sold by the Foot) #10 Lock Washer | Terminal Lug (208/240V) Terminal Lug (416/480V) Sail Switch Box with Cover and Bracket Sail Switch Box Assembly Complete Sail Switch Rod Sail Switch Damper 1/8 Push-on Fastener #10x1/2 Hex Washer TEK Twin Speed Nut Sail Switch Box Cover and Bracket Only Sail Switch #4x3/4" "A" Pan Head Machine Screw 290°F, Hi-Limit Thermostat #8-18x7/16 TEK Pan Head Screw 100-Lb. Element Cover #8-18x1/2 TEK Hex Head Screw 3KW, 208V, Heating Element 3KW, 240V, Heating Element АКИ, 208V, Heating Element 4KW, 240V, Heating Element Electric Oven Only | 60KW, 208V, 39 Oven Complete 60KW, 240V, 30 Oven Complete 60KW, 416V, 389 Oven Complete 60KW, 480V, 3p Oven Complete Access Cover 100-Lb. Safety Control Bracket Assembly 90 TS = LE ЙЕ Tes Mr, ; ET UA Illus. No. 0000 BON — Part 208/240V 416/480V Qty. No. 120710 152002 150512 121010 131309 152008 803202 120706 153007 150511 320902 150301 150510 Qty. fd pd не ФБ 3 о СООГО ГО РО СО ГО > СО по = | — ELECTRIC OVEN RELAY BOX ASSEMBLY — = Ls 2 NADOS ED Description Terminal Block, Power Input Power Control Harness and Connector 1/4-20 Pal Nut | 1/4-20x1/2 Hex Head Bolt Ground Lug L-70 Relay Contactor 93A, 10-32 Pal Nut Mounting Adaptor Plate Terminal Distribution Block 1/4 Lock Washer 1/4-20x1-1/2 Hex Head Bolt Junction Box Cover 8-18x7/16 Phillips Self-Drill. Screw 1/4-20x3/4 Hex Head Bolt 240V 92 o) /® ео > /0) o Illus. No. ‘© O 4 O UI LE WN) = 7 DA G Y A Part No. 319702 150001 151000 130401 150300 105500 319202 154002 150300 154004 802799 122200 150303 (= 9 7 7/ ФФ > SAIL SWITCH/BURNER HI-LIMIT SWITCH ASSEMBLY © ct < NO ed 2 js DD > bd pd fo pd ND) ND) = | Description Hi-1imit Thermostat Bracket Assembly 6/32x1/2" Round Head Machine Screw 6/32 Pal Nut 330°F, Hi-limit Thermostat #10x1/2 Hex Washer TEK Sail Switch Rod Sail Switch Damper 1/8" Push-0n Fastener #10x1/2 Hex Washer TEK Twin Speed Nut Sail Switch Box Cover and Bracket Only Sail Switch #4x3/4" "A" Pan Head Machine Screw 93 IlNlus. Part No. No. 1 803504 2 165004 3 150510 4 312307 5 152002 6 153001 7 153007 8 165102 9 165103 10 152002 11 142507 12 142808 13 142602 14 142711 15 142508 16 142712 17 142901 18 165107 © + < + =r pe PO ed = NY ON неон Сл ÓN a e IS NN e pd STEAM COIL ASSEMBLY Description Steam Plenum Steam Coil (A11 Models) 1/4-20x3/4 Hex Head Bolt Corner Gusset Brace 1/4-20 Hex Nut 5/16 Flat Washer 1/4 Lock Washer 1-1/4" Steam Valve, 110V, Lo-press. Steam Only 1-1/4" Steam Valve, 220V, Lo-press. Steam Only 1/4-20 Hex Nut 1" 90° Street Elbow 1"x3" Nipple 1" Black Union 1" Close Nipple 1" Tee 1"x10-5/8" Nipple 1-1/4"x1" Reducing Bushing, Lo-pressure Steam Only 1" Motorized Steam Valve, Hi-pressure Steam and Super Steam Only 94 Illus. No. сл + с ГО == Part No. 801509 152004 143507 143510 BACK GUARD AND HEAT RECLAIMER DUCT ASSEMBLY Qty. Description 1 Back Guard 4 5/16-18 Hex Nut 1 Tee Duct 1 8" Diameter Flex Pipe Gas Burner Assembly (Refer to Gas Burner Assembly Illustration for Part Numbers) 95 SECTION XIII Servicing Introduction: All electrical/mechanical service or repairs should be made with the electrical power to the dryer disconnected (power off). WARNING: Personal injury could result. The information provided in this section should not be misconstrued as a device for use by an untrained person making repairs. Only properly licensed technicians should service the equipment. When contacting the factory for assistance, always have the dryer model and serial numbers available. CAUTION: Observe all safety precautions displayed on the dryer or specified in this manual before and while making repairs. Table of Contents Page A. Computer Controls ® & 8 5 5 0 OF OG TOOT BOE OPS OSE EE SED 98 Computer Control Panel Assembly Computer Keyboard Label Assembly Temperature Sensor Probe A.S. Board and P.C.B. relays B. Dual Timer Controls 6 #..........................e 100 Indicator Light Heat Selector Rocker Switch Push to Start Relay Timer С. Ignition Components 000000000 000000000 00000000080 101 Glo-bar Г.К. Sensor Gas Valve Burner Orifices | Test and Adjust Gas Pressure l. Non-Hi/Lo Gas Valve (dual timer dryers) 2. Hi/Lo Gas Valve (computer dryers) Conversion from Natural to L.P. Gas 1. Non-Hi/Lo Gas Valve (dual timer dryers) 2. Hi/Lo Gas Valve (computer dryers) D. Thermostats + 9 6 % © + 6 6 à 60 #0 & © à & à 6 6 6 0 % 46 % + 6 6 © 6 % € 6 6% ERS 106 96 Burner Hi-limit Thermostat Lint Compartment Hi-Heat Protector Thermostat Temperature Control Thermostats (dual timer models) Sail Switch Assembly Main Door Switch .... Main Door Assembly .. Front Panel Assembly Main Door Hinge Pad . Pulleys ® © 0 00 008 000 0 00S OOO LEE SOI OEE OE EE GN EH OSL 0, 84. 8. 8 Tumbler Pulley Idler Pulley Motor Pulley Tumbler Assembly .... 6 #......................... ® 6 0 6 02 FSO ST ECE PE OEE EEE EO OES * | * $ € SECO =0IECcAS de €eGoocann e E es + 6 9 | 6 € # 6 à %® 6 © 6 #% à © 9 + 6 à 6 tt 6 +6 6 8-8 Tumbler Alignment (vertical) Tumbler Alignment (lateral) Tumbler or Tumbler Support Replacement Bearings 000000000000 Rear Tumbler Support Front Tumbler Support Pillow Block Bearing Pillow Block Bearing Front Idler Shaft Pillow Block Bearing Rear Idler Shaft Pillow Block Bearing V-Belts ® 5 2 0 0 * | E >AaAEIO=NOCO EOP ESSN EEE EES GO SE EE OOO Motors 0000000000 0000 Drive Motor Impeller Motor Impeller ..oorsccoccoco Lint Screen ...oococo.. » 0 6 5 0 0 20 6" OF SOE OE EEE EE Se OE Acto . _* 6 6.5 9 0" BP OEP OE PGE SE EEE SE REDS 6 * & 8 0 5 2 00 PP HB OPPO ELSE PEE 890: 808 Electric Heating Elements ...soecssccoocooooooccooco Oven Relay Contactor Steam Coil 0000000000 Motorized Steam Valve e . e 6 6 E 6 ECO wN O 09000080 iO enrxcOdósnaca. . * 8 6 ISO GON 0! GO € a 0Rd 808,200. 5. 8. 88 e. à 9600 € E à +6 9 4 6 6 6 asii: 97 108 110 110 110 111 111 113 116 117 118 119 119 120 120 120 121 Computer Controls To Replace Computer Control Panel Assembly 1. 2. Discontinue power to dryer. Disconnect main power harness from rear of computer by squeezing locking tabs and pulling connector straight back. Disconnect the ground (green) wire from the computer. Disconnect the two (2) red wires from the HI and HO terminals of the computer (hi/lo models only). To remove control! panel assembly from control box, gently tap the bottom on the control panel upward and 1ift off of hinges. Install new control panel assembly by reversing this procedure, Replace Computer Discontinue power to dryer. Disconnect main power harness from rear of computer by squeezing locking tabs and pulling connector straight back. Disconnect the ground (green) wire from the computer, Disconnect the two (2) red wires from the HI and HO terminals of the computer (hi/lo models only). Disconnect keyboard ribbon from computer. Remove the four (4) hex nuts securing the computer to the sheet metal control panel and disassemble computer from panel. Install new computer by reversing this procedure. Replace Keyboard Label Assembly Discontinue power to dryer. Unplug keyboard ribbon from rear of computer. Slowly peel off and remove keyboard label assembly from control panel. 98 6. 7. Peel paper backing off of new keyboard label assembly. Holding the new keyboard labe] assembly close to the control panel, insert the keyboard ribbon through the rectangular slot in the control panel. Align Табе] assembly into position by matching the red viewing window in the label to the rectangular cutout in the panel and gently press into place. Connect keyboard ribbon to computer, Reestablish power to dryer. To Replace Computer Temperature Sensor Probe 1. Discontinue power to dryer. 2. Remove M.P. Sensor bracket assembly from dryer. a. Disconnect sensor bracket harness connector. be Loosen the two (2) phillips head screws securing bracket assembly to dryer and remove bracket from dryer, NOTE: Do not remove screws. 3. Disassemble sensor probe from bracket assembly by removing the top push-on fastener securing the probe to the bracket. Use a small screwdriver to slowly pry the fastener off, 4. Disconnect the two (2) orange wires from the high heat (225°) temperature sensor, remove modular bracket connector, wires, and probe from bracket assembly. > Install new sensor probe assembly (P/N 880251) by reversing procedure. 6. Reestablish power to dryer. NOTE: If, when power is reestablished, the computer display reads "dSFL", check for a loose connection in the wiring. If connections appear to be okay, reverse polarity of the sensor probe by reversing the wires at the sensor bracket connector holes number 1 and 2. To Replace A.S. Board and P.C.B. Heat and/or Motor Relays Un A.S. Board l. Discontinue power to dryer. 2. Locate and remove all wires from the arc supressor (A.S.) boards terminals and relays. 6. 7. NOTE: Identify location of each wire for correct reinstallation. Remove A.S. board assembly from control box wall by pressing in the locking tabs of the nylon standoffs at each corner of the board. NOTE: If an entire new board is to be used, skip steps 4 through 5, To replace individual printed circuit board (P.C.B.) relays, locate the three (3) solder points securing the relay to the back side of the A.S. board. Using a soldering iron, remove the solder at each of these points and disassemble relay from board. IMPORTANT: Avoid damaging board printed circuits. Assemble new relay onto A.S. board. Press and hold firmly in place and apply a small amount of solder to each of the three (3) relay pins. NOTE: The solder points are not anly used to secure the relay to the board, they are also important electrical connections. Assemble A.S. board to dryer by reversing steps 2 and 3. Reestablish power to dryer. Dual Timer Controls To Replace Indicator Light Discontinue power to dryer. Disconnect the two (2) wires from the indicator light at the control panel 3-position terminal strip. Push and hold in the two (2) locking lances of the indicator light and pull light out through face side of control panel. Install new indicator light by reversing the procedure. Replace Heat Selector Switch Discontinue power to dryer. Disconnect wiring from heat selector switch. 100 IMPORTANT: Identify location of each wire for correct reinstallation. Push and hold in the right top and bottom locking lances of the selector switch and push slightly forward to the right. Push and hold in left top and bottom locking lances and push switch out through face side of panel. Install new heat selector switch by reversing this procedure. Replace Push-to-Start Relay Discontinue power to dryer. Remove wiring from push-to-start relay. Disassemble push-to-start relay from control panel by removing the two (2) slotted head screws securing the push-to-start relay to the panel mounting bracket. Reverse this procedure. for installing push-to-start relay. To Replace Timer 1. 2. Discontinue power to dryer. Disconnect wiring at timer. NOTE: Identify location of each wire for correct reinstallation. Remove timer knob by unscrewing small screw that holds the knnb to timer shaft. Remove two (2) screws holding timer to panel. Reverse this procedure for installing timer, Ignition Components To Replace Glo-bar Discontinue power to dryer. Disconnect glo-bar power harness connector. Disassemble glo-bar from mounting bracket by removing machine screw, washer, and nut. 101 NOTE: If adjustment of glo-bar closer to burner tube is needed, bend mounting bracket upward. To avoid damaging glo-bar, do not make adjustments while glo-bar is mounted to bracket. Do not touch glo-bar heating element with your fingers. 0i] deposits on element can lead to early element failure. Reverse procedure for installing new glo-bar. IMPORTANT: Before reestablishing power to dryer, visually check glo-bar to assure it is not touching tube burner. | Replace I.R. Sensor (flame switch) Discontinue power to dryer. Disconnect wiring to I.R. Sensor. Disassemble I.R. sensor from mounting bracket by removing machine screw, washer, and nut. Reverse procedure for installing new I.R. sensor. Replace Gas Valve Discontinue power to dryer. Close shut-off valve(s) in gas supply line. Disconnect gas valve wiring. NOTE: Identify location of each wire for correct reinstallation. Break union connection before gas valve. Loosen and remove screws (4) securing pipe brackets to burner, Remove gas valve/manifold assembly from dryer. Remove valve mounting bracket, manifold, and 1/2" pipe from gas valve. Reverse procedure for installing new gas valve. WARNING: Test all connections for leaks by brushing on a soapy water solution. NEVER TEST FOR LEAKS WITH A FLAME. 102 To Replace Main Burner Orifices ‚1. Refer to "Replace Gas Valve" and follow steps one through | six. д. Unscrew main burner orifices and replace. NOTE: Use extreme care when removing and replacing orifices. These orifices are made of brass and are easily damaged. 3. Reverse the removal procedure for re-installing. WARNING: Test all connections for leaks by brushing on a soapy water solution. NEVER TEST FOR LEAKS WITH A FLAME. To Test and Adjust Gas (water column) Pressure There are two (2) types of devices commonly used to measure water column pressure, They are spring/mechanical type gauges and manometers. The spring/mechanical type gauge is not recommended, because it is easily damaged and is not always accurate. A manometer is simply a glass or transparent plastic tube with a scale in inches. When filled with water and pressure is applied, the water in the tube rises, showing the exact water column pressure, NOTE: Manometers are available from the factory by ordering part number 122804. 1. To Test Gas Water Column (W.C.) pressure: a. Connect water column test guage connection to gas valve pressure tap (1/8" N.,P.T.) be Start dryer. With burner on in hi-fire, the correct water column reading in inches should be: Natural Gas - 4 Inches М.С, L.P. Gas - 11 Inches W.C. 103 2. To adjust water column pressure (natural gas only): a. Non-Hi/Lo Gas Valve (dual timer dryer) 1) Remove regulator adjustment cover. 2) Turn slotted head adjustment screw located in the gas valve well clockwise to increase manifold gas pressure and counterclockwise to decrease manifold gas pressure. 3) Replace regulator adjustment cover. NOTE: If correct W.C. pressure cannot be achieved, problem may be due to an undersized gas supply line, a faulty or underrated gas meter, low incoming gas pressure, etc. b. Hi/Lo Gas Valve (computer dryer) Refer to Fig. 3 on page 57. 1) Remove sheet metal box on top of gas valve by removing the three (3) small holding screws. 2) To decrease lo-fire gas flow, turn lo-fire adjustment nut counterclockwise. Turn it clock- wise for an increase in flow. 3) To decrease hi-fire gas flow, turn hi-fire adjustment screw counterclockwise. Turn it clockwise for an increase in flow. NOTE: Every adjustment of the Tlo-fire flow affects hi-fire flow. If lo-fire is decreased, hi-fire will decrease with it. So, always adjust lo-fire first, and then, adjust hi-fire. For example, if you want to decrease lo-fire but keep hi-fire as it is, turn the lo-fire adjustment nut counterclockwise until the proper lo-fire is obtained. Then, the hi-fire screw must be turned clockwise, so that the hi-fire flow will be what it was before lo-fire was adjusted. NOTE: If lo-fire adjustment is required, apply Loctite or some other similar substance to the lo-fire adjustment nut to prevent vibrations from loosening it. 3. To adjust water column pressure (L.P. Gas only): Dryers manufactured for use with L.P. gas have no pressure 104 regulator or ‘means of regulation built into the dryer, Regulation must be provided at the gas supply (L.P. tank). If regulation adjustment is necessary, contact L.P. gas supplier. NOTE: If correct or consistant W.C. pressure cannot be achieved, problem may be due to an undersized gas supply line or a faulty requlator. „”— с --- REGULATOR COVER SCREW FOUT — SPRING и "PLASTIC ADJUST. SCREW PRESSURE TAP ORIFICE 105 To Convert from Natural to L.P. Gas 1. Non-Hi/Lo Gas Valve (dual timer dryer) Ask for L.P. Kit P/N 874023. This includes three (3) orifices and a valve stem, a. Replace main burner orifices. Refer to "To Replace Main Burner Orifices" on page 103, b. Remove gas valve regulator adjustment cover. Replace with L.P. stem cover and washer supplied with L.P. kit. C. Reverse procedure for re-installing gas valve to dryer. 2. Hi/Lo Gas Valve (computer dryer) Ask for L.P. Kit P/N 874029, This includes three (3) orifices and an L.P. gas valve. a. Replace gas valve and main burner orifices. Refer to "To Replace Gas Valve" and "To Replace Main Burner Orifices" on page 103. b. Reverse procedure for re-installing gas valve to dryer. Hi/Lo Gas Valve, Natural Gas ~~ P/N 140010 Hi/Lo Gas Valve, L.P. P/N 140011 D. Thermostats Burner Hi-Limit (330°) Thermostat This thermostat is located on the left side of the burner, and is an important safety device serving as an added protection against failure of the air sail switch to open in the event of motor failure or reduced air flow condition. IMPORTANT: Under no circumstances should heat circuit safety devices ever be disabled. To Replace 1. Discontinue power to dryer, 2. Disconnect wires from hi-limit thermostat. 3. Disassemble hi-limit thermostat by removing the two (2) mounting screws and nuts, | 106 4, Reverse this procedure for installing hi-limit thermostat. "Lint Compartment Hi-Heat Protector (225°) Thermostat This thermostat is part of the "sensor bracket assembly" and is secured to the underside of the tumbler wrapper in the lint compartment. As a safety device, this thermostat will open (shut off) the heating unit circuit if an excessive temperature occurs, The dryer motor will remain on, even if this thermostat is open. IMPORTANT: Under no circumstance should heat safety devices ever be disabled. To Replace l. Discontinue power to dryer. 2. Open lint compartment door and locate sensor bracket assembly. 3. Loosen the two (2) phillips head screws securing the bracket assembly to the tumbler wrapper. NOTE: Do not remove screws. 4. Remove bracket assembly by slightly sliding bracket towards rear of dryer and to the right. 5. Disconnect sensor bracket harness connector and remove bracket assembly from dryer. 6. Disconnect the two (2) orange wires from the thermostat. 7. Disassemble thermostat from bracket assembly by removing the two (2) mounting screws, washers, and nuts. 8. Reverse this procedure for installing hi-heat protector thermostat. Temperature Control Thermostats (dual timer dryer) These thermostats will open the circuit to the heating unit when their preset temperature settings are reached. The temperature control thermostats are part of the "sensor bracket assembly" secured to the underside of the tumbler wrapper in the lint compartment. To Replace 1. Discontinue power to dryer. 2. Open lint compartment door and locate sensor bracket assembly. 107 3. Loosen the two (2) phillips head screws securing bracket assembly to tumbler wrapper. NOTE: Do not remove Screws, 4. Remove bracket assembly by slightly sliding bracket towards rear of dryer and to the right. 5. Disconnect sensor bracket harness connector and remove bracket assembly from dryer. 6. Disconnect wiring to defective thermostat. 7. Disassemble defective thermostat from bracket assembly by removing the two (2) mounting screws, washers, and nuts, 8. Reverse this procedure for installing new thermostat. E. Sail Switch Assembly The sail switch is a heat circuit safety ‘device which controls the burner circuit only. When the dryer is operating and there is proper air flow, the sail switch damper pulls in and closes the sail switch. Providing all the other heat-related circuits are functioning properly, ignition should now be established. If an improper air flow occurs, the sail switch damper will release, and the circuit will open. IMPORTANT: Under no circumstances should heat circuit safety devices ever be disabled. To Replace 1. Discontinue power to dryer. 2. Remove the two (2) screws which hold the sail switch box cover to the sail switch box. 3. Disconnect the two (2) wires from the switch. 4. Disassemble sail switch from mounting bracket by removing the two (2) screws securing switch in place. 5. Reverse this procedure for installing new sail switch. Adjust switch as described below. To Adjust Sail Switch With the dryer operating at a high temperature setting, pull the sail switch damper away from the burner. The sail switch 108 should open and extinguish the burner. Let the sail switch damper return to the burner wall. The sail switch should close to restart the burner ignition cycle. If the sail switch circuit does not operate as described, bend the actuator arm of the sail switch accordingly until proper operation is achieved. To check proper "open" position of sail switch, open main door, manually depress main door switch(es), and start dryer. With the main door open and the dryer operating, the sail switch circuit should be open, and the burner should not come on. CAUTION: Do not abort this switch by taping or screwing sail switch damper to burner, Personal injury or fire could result. 70 р - SAIL SWITCH BOX ИХ COVER у, ’ pm / / | / / IS ) SAIL SWITCH ROE / 7 a / / Y | 7 SAIL SWITCH BOX COVER SCREWS ACTUATOR ARM SAIL DAMPER 109 To Replace Main Door Switch 1. Discontinue power to dryer, Open main door. Remove the two (2) phillips head screws holding main door switch bracket assembly in place. Remove door switch bracket from hinge block and disconnect wiring from switch. NOTE: Identify location of each wire for correct re- installation. Disassemble door switch from switch bracket by removing locking adjustment nut. Remove second locking nut and assemble on to new door switch. Reverse this procedure for installing new door switch. NOTE: When reconnecting wires to door switch, be sure wiring sequence is correct. IMPORTANT: Under no circumstances should the door switch ever be disabled. To Replace Main Door Assembly 1. 2. Remove screws holding main door to main door hinge pad. Reverse this procedure for re-installing new main door assembly. Front Panel Removal 1. 2. Discontinue power to dryer. Disconnect main door switch wiring from inside control wire box. | NOTE: Identify location of each wire for correct re- installation. Follow procedure for removal of main door assembly. Open control (service) door. Open and remove lint door. Remove the twelve (12) phillips head screws securing front panel to dryer. 110 8. Gently remove front panel assembly from dryer. IMPORTANT: When removing front panel assembly, be careful as not to damage main door switch wires disconnected in step 2. Reverse this procedure for installing front panel. To Replace Main Door Hinge Pad Discontinue power to dryer. Follow procedure for removal of main door assembly. Follow procedure for removal of front panel assembly. Disassemble hinge pad from front panel by removing the phillips head screws located on the back side of the front panel, which hold the hinge pad to the front panel. IMPORTANT: When removing hinge pad assembly from front panel, be careful as not to damage main door switch wires. Remove main door switch, wires, and spacer nuts from hinge pad assembly. Reassemble by reversing removal procedure. NOTE: When reconnecting wires to door switch, be sure wiring sequence is correct. Pulleys To Replace Tumbler Pulley (18") 1. 2. Loosen V-belts. Then, rotate pulley and roll V-belts out of grooves. Remove the three (3) hex head bolts and washers that hold the pulley to its bushing, Screw these bolts into the unused threaded holes in the bushing and tighten evenly. This will push pulley off bushing, Loosen the set screw in bushing that holds down the shaft key. Remove bushing, pulley, and key. Replace by reversing procedure. 111 To Replace Small Idler Pulley 1. Loosen V-belts. Then rotate pulley and roll V-belts out of grooves. 2. Remove the three (3) hex head bolts and washers that hold the pulley to its bushing. 3. Screw these bolts into the unused threaded holes in the bushing and tighten evenly. This will push pulley off bushing. 4, Remove bushing and pulley. 5. Replace by reversing procedure. To Replace Large Idler Pulley 1. Remove small idler pulley as described above. 2. Loosen V-belts. Then rotate pulley and roll V-belts out of grooves. | 3. Remove the three (3) hex head bolts and washers that hold the pulley to its bushing. 4. Screw these bolts into the unused threaded holes in the bushing and tighten evenly, This will push pulley off bushing. | 5. Loosen the set screw in bushing that holds down the shaft key. 6. Remove bushing, pulley, and key. 7. Replace by reversing procedure. To Replace Motor Pulley l. Loosen V-belts. Then rotate pulley and roll V-belts out of grooves. 2. Remove the three (3) hex head bolts and washers that hold the pulley to its bushing. 3. Screw these bolts into the unused threaded holes in the bushing and tighten evenly, This will push pulley off bushing. 4, Loosen the set screw in bushing that holds down the shaft key. 112 5. Remove bushing, pulley, and key. 6. Replace by reversing procedure, Tumbler Assembly Tumbler Alignment (vertical) Refer to illustration on the following page. | 1. Discontinue power to dryer. 2. Remove back guard. 3. Loosen the two (2) vertical holding bolts (D in illustra- tion) on the sides at the top of the bearing box {1 each side). 4. Back off jam nuts on vertical adjustment bolts (E). 5. Turn these bolts (E) clockwise evenly to raise tumbler or counter-clockwise evenly to lower tumbler. 6. Rotate tumbler from front and check alignment with front door opening. 7. Leave a larger gap from the inside ring on the top of the front panel opening to the tumbler (basket), and a smaller gap on the bottom to compensate for the weight of the clothes when drying. 8. Re-tighten the two (2) vertical holding bolts (D) on the sides at the top of the bearing box, and the jam nuts on the two (2) vertical adjustment bolts. (E) 9. Check tumbler drive belt for proper tension. Adjust if required. 10. Replace back guard and reestablish power to dryer. Tumbler Alignment (lateral) Refer to illustration on the following page. 1. Discontinue power to dryer. 2. Remove back guard. 3. Loosen rear pillow block bearing bolts. (С) 4. Back off jam nuts on the two (2) lateral adjustment bolts. (A) and (8) 113 5. Simultaneously loosen one bolt and tighten the other. This will move the rear pillow block. Center the tumbler in the wrapper cavity. | о q 9665 o 09 0 o Poe TUMBLER D VERTICAL HOLDING BOLT Г VERTICAL ADJUST. BOLTS E’ Alma) N | VERTICAL HOLDING BOLT 'D Le PILLOWBLOCK BEARING | A LATERAL ADJUST. BOLT FRONT TUMBLER SUPT. ne Lee Op LATERAL ADJUST. BOLT B’ REAR TUMBLER SUPT. PILLOWBLOCK BEARING TOP VIEW REAR BEARING BOLTS C' 114 Tighten and secure both lateral adjustment bolts (A) and (B) and jam nuts. | Tighten pillow block bearing bolts (C) loosened in step Replace back guard and reestablish power to dryer. To Replace Tumbler or Tumbler Support 10. Discontinue power to dryer. Follow procedure for removal of main door assembly. Follow procedure for removal of front panel assembly. Remove back guard. Remove tumbler pulley (18"). Remove tumbler assembly and tumbler support. a. Loosen the two (2) set screws on both the pillow block bearing collar and the flange bearing collar. The two (2) set screws on the flange bearing can be reached through the opening on bottom of bearing box. Remove tumbler and support assembly from the front of the dryer, If the tumbler cannot be removed freely, clean the shaft area and spray with WD-40 or similar lubricant. With a block of wood against the shaft end, strike the block of wood with a hammer or mallet to move shaft past burrs made by set screws. IMPORTANT: NEVER STRIKE THE SHAFT DIRECTLY WITH A HAMMER. Remove tumbler from tumbler support. a. Remove the bolt in center of tumbler back wall. be Loosen and remove the four (4) sets of nuts and washers from tumbler tie rods. Remove tie rods (8). C. Replace either tumbler or tumbler support by reversing procedure, Reassemble components onto dryer by reversing steps 2 through 7. | Check tumbler vertical/lateral alignment and adjust as found necessary. 115 Le 11. Replace back guard and reestablish power to dryer. Bearings Bearings are sealed and need no lubrication. To Replace Rear Tumbler Support Pillow Block Bearing Discontinue power to dryer. Remove back guard. Remove tumbler pulley (18"). Loosen lateral adjustment jam nuts and bolts. (A) and (B) Refer to illustration on page 114, Loosen set screws (2) from rear pillow block bearing collar. Remove the rear bearing bolts (C), securing bearing to bearing mount. Remove bearing. Replace by reversing steps 3 through 6. Adjust both lateral and vertical tumbler alignment. Replace back guard and reestablish power to dryer. Replace Front Tumbler Support Pillow Block Bearing Discontinue power to dryer. Follow steps 2 through 6 from "Replacement of Rear Tumbler Support Pillow Block Bearing." Remove the two (2) bolts holding front tumbler support pillow block bearing to dryer. Loosen bearing collar set screws (2) and as end of tumbler shaft is lifted up slightly, slide bearing off shaft. Prop a block of wood between tumbler shaft and bearing mount to keep tumbler level and in place. Replace by reversing steps 2 through 5, NOTE: Before replacing back quard, check tumbler lateral /vertical adjustment, as well as belt adjustment. Correct as found necessary. 116 8 7. Reestablish power to dryer. lo Replace Front Idler Shaft Pillow Block Bearing (bearing "nearest back of dryer) 1. Remove V-belts from idler pulleys. 2. Remove bolts holding each idler pillow block bearing to mount. 3. Remove idler shaft (with both bearings and idler pulleys still attached) from dryers. 4. Remove end retaining ring and loosen the two set screws in ring collar. 5. Slide bearing off shaft. 6. Replace bearing by reversing procedure. 7. Align idler pulley with tumbler pulley before tightening bolts. To Replace Rear Idler Shaft Pillow Block Bearing l. Follow steps 1 through 3 from "To Replace Front Idler Shaft Bearing". 2. Remove retaining rings on each side of forward idler shaft pillow block bearing, 3. Loosen the two set screws on each bearing collar. 4. Slide both bearings off the shaft. 5. Replace by reversing procedure. M. V-Belts V-belts should have proper tension. If too loose, they will slip; if too tight, excessive wear on the bearings will result. If the pulleys are not properly aligned, excessive belt wear will result. Proper belt tension will allow 1/2" displacement under normal thumb pressure at mid span of belt. V-Belt Tension Adjustment - Tumbler to Idler 1. Back off jam nuts on idler adjustment bolts. 2. Tighten belts by turning both bolts evenly clockwise, (Turn counterclockwise to loosen belts.) 3. Check vertical plane of idler pulley for parallel 5. alignment with tumbler pulley. If realignment is required, loosen tumbler pulley and bushing, and move tumbler pulley to proper position. Re-tighten jam nuts. V-Belt Tension Adjustment - Motor to Idler 1. Loosen the nuts on the two studs holding the drive motor mount to the back of the dryer. Loosen the two hex head bolts holding the drive motor mount flange to the angle iron frame on the back of the Loosen the jam nuts on the adjustment screw at the top of Turn the adjustment screw to lower the motor mount (to tighten the belts) or raise the motor mount (to loosen Check vertical plane of motor pulley and idler pulley for If realignment is required, loosen motor pulley and bushing and move motor pulley to proper position. Re-tighten motor mount bolts and jam nuts. Loosen tension on V-belts, so that they can easily be 2. dryer. 3. the motor mount. 4. the belts). 5. parallel alignment. 6. 7 To Replace V-Belts 1. rolled off pulleys. 2. Replace V-belts. 3. Re-tighten V-belts and adjust tension and alignment per previous instructions. NOTE: Always replace V-belts in pairs. Motors To Replace Drive Motor 1. 2. Discontinue power to dryer. Remove drive belts. 118 0. P. Disconnect wiring harness from motor. Remove bolts holding motor to mount and replace with new motor. Do not tighten bolts. Remove pulley from old motor and install on new motor. Align motor pulley with idler pulley and align motor shaft with idler shaft and tighten bolts. Replace belts and adjust belt tension. Re-tighten bolts, To Replace Impeller Motor 1. Discontinue power to dryer, 2. Disconnect motor harness from motor. 3. Remove nuts and washers holding the motor mount to the rear of the dryer and pull motor mount away. 4. Remove the two left-hand nuts on the motor shaft retaining the impeller and work the impeller free from the motor shaft by means of a wheel puller to prevent damage to the motor shaft. 5. Remove bolts holding motor to motor mount and replace with new motor, 6. Align motor with impeller face in plane with the motor mount at no less than 3/16" clearance. | 7. Re-install the motor mount, and reconnect motor harness. Impeller To replace impeller follow steps 1 through 4 of "To Replace Impeller Motor", To Replace Lint Screen Open and remove lint door from dryer. Remove the two (2) hex screws securing the lint screen hold-down bracket. Remove lint screen hold-down bracket, Slide lint screen from lint coop. 119 Re-install new screen by reversing procedure. Replace Electric Heating Element Discontinue power to dryer. Remove perforated access cover on electrical oven. Disconnect connecting hardware and ceramic insulator from screw terminals of element to be replaced. Remove access cover from opposite side of oven. Slide element out of oven. Replace element by reversing procedure. Replace Oven Relay Contactor Discontinue power to dryer. Remove junction box cover from electric oven. Loosen cable connector screws and remove electric cables from contactor terminals. Remove wires from coil of contactor. Remove hardware holding contactor (and ground lug) to wall. Replace contactor by reversing procedure. Replace Steam Coil Shut off steam supply line. Start dryer and run for 10 minutes to relieve inlet steam pressure. Stop dryer and discontinue power to dryer. Shut off condensate return line. Remove steam coil manifold plug and let any condensate drain from coil. Disconnect piping from defective coil. Remove hardware holding defective coil to plenun housing. 120 8. 9. Lift defective coil off dryer, Install new coil by reversing procedure. Use 6 percent silver solder to repair minor leaks at joints, fittings, and U-tube joints. In high-pressure coil, do not repair leaks in walls of tubes. Coil must be replaced. NOTE: Repairs should only be made by a qualified technician. To Replace Motorized Steam Valve Shut off steam supply down stream of steam valve. Start dryer and run for 10 minutes to relieve inlet steam pressure. Stop dryer and discontinue power to dryer. Shut off condensate return line. Disconnect the three (3) power lines from motor of steam valve, Disconnect steam valve from piping. Install new valve by reversing procedure. 121 SECTION XIV Trouble Shooting The information provided will help isolate the most probable component (s) associated with the difficulty described. The experienced technician realizes, however, that a loose connection or broken or shorted wire may be at fault where electrical components are concerned...not necessarily the suspect component itself. ELECTRICAL PARTS SHOULD ALWAYS BE CHECKED FOR FAILURE BEFORE BEING RETURNED TO THE FACTORY, The information provided should not be misconstrued as a device for use by an untrained person in making repairs. Only properly licensed technicians should service the equipment. Observe all safety precautions displayed on the equipment or specified in this manual while making repairs. A. Dual Timer Controls Trouble | Probable Cause 1. Dryer will not start. a. Open circuit breaker switch or blown fuse b. Faulty motor relay c. Faulty "Push to Start" relay de Faulty timer e. Main door switch is out of adjustment or is defective. fo. Faulty motor 2. Tumbler motor runs, a. Broken, damaged, or loose V-belt the burner is on, but the tumbler will not be Belts are contaminated (oil, revolve. grease, etc.) с. Loose or broken motor pulley 3. Dryer motors start a. Manual reset thermostat in lint but the glo-bar is not compartment has tripped or is lighting. defective. (models prior to October 1, 1985) 122 Dryer operates. Glo-bar heats up and stays on. Dryer operates. 610 -Баг heats. up and goes out, but gas does not flow. Lint compartment automatic safety thermostat (225°) is defective. (models manufactured as of October 1, 1985) Sail switch is out of adjustment, defective, or sail switch damper is not closing due to back pressure created by a restriction in the exhaust system. Blower motor is spinning in wrong direction, so sail switch will not close. Faulty glo-bar Defective burner hi-limit (330) safety thermostat Defective heating timer switch Faulty heat selector switch Faulty I.R. sensor “Faulty gas valve Faulty diode logic board Ignition system transformer (208 or 230 volt controls only) is defective. Check for 115V across black and white wires of transformer. Faulty I.R. sensor Dryer or external gas shut-off valve is closed. Shut-off valve in dryer's gas valve is closed, Defective gas valve (open coil in gas valve) For 208 or 230V controls, ignition transformer may not be 123 Dryer operates. Glo-bar heats up and goes out, but burner does not light even though gas Dryer operates, but dryer is taking too long to dry. Dryer will not shut off. Tumbler will not reverse is evident. wired correctly. Check wiring sequence for correct voltage application. Faulty diode logic board Gas pressure is too low. Check manifold pressure and adjust regulation accordingly. Incorrect gas/air mixture Adjust air shutters of each tube burner, Insufficient make-up air An inadequate exhaust duct work system. Restriction in exhaust system. Insufficient make-up air Poor housekeeping....dirty or clogged lint screen. Extractors are not performing properly. An exceptionally cold/humid or low barometric pressure atmosphere The gas may have a low heating value. Check with local gas supplier. Defective motor relay (Contacts stuck in closed position.) Defective timer switch (Switch contacts stuck position.) in closed Defective computer Defective reversing timer (dual timer models only) 124 10. Motor keeps overheating. 11. Excessive noise or vibration in the dryer, 12. Dryer is cycling on burner hi-limit thermostat. 13. Main burners are burning with a yellow flame. Defective reversing motor contactor Either an exceptionally low or high voltage supply. Motor bearing failure. Motor thermal overload protector 1s defective. An idler or tumbler bearing failure Motor vents are blocked with lint, Defective motor Insufficient make-up air Tumbler is out of alignment. V-belt is too loose or too tight. Loose or broken tumbler (basket / drum) tie rod Tumbler or idler bearing failure Tumbler adjustment bolts are loose. Loose motor mount Faulty impellor (fan) Insufficient exhaust duct work size or restriction in exhaust system, Insufficient make-up air Lint screen needs cleaning. Damaged impellor (fan) Burner air shutters need adjusting. 125 Computer Controls Trouble No display Dryer will not start, but computer display indicators are on. Tumbler motor runs, burner is on, but tumbler will not revolve. Dryer motors start, computer display heat indicators are on, but glo-bar is not lighting. Insufficient make-up air Dust or lint in the burners Probable Cause Open circuit breaker switch or blown fuse A.S. board fuse(s) blown, Faulty A.S. board Faulty computer controller Door switch is not adjusted properly or is defective. Faulty motor or impellor contactor (relay) Faulty computer Faulty motor Broken, damaged, or loose v-belt Belts are contaminated (oil, grease, etc.) Loose or broken motor pulley. Manual reset thermostat in the lint compartment has tripped or is defective. (models prior to October 1, 1985) Lint compartment automatic safety thermostat (225°) is defective. (models manufactured as of October 1, 1985) Sail switch defective, is out of adjustment, or sail switch damper 126 Dryer operates. Glo-bar heats up and stays on. Dryer operates. Glo-bar heats up and goes out, but gas does not flow. Dryer operates. Glo-bar heats up and goes out, but burner does not light even though gas is evident. is not closing due to back pressure created by a restriction in the exhaust system. Defective burner hi-limit (3307) safety thermostat Defective glo-bar Faulty A.S. board heat relay Faulty gas valve Faulty I.R. sensor Faulty computer controller Faulty diode logic board Faulty I.R. sensor Dryer or external gas shut-off valve is closed or gas valve shutoff is closed. Shut-off valve in dryer's gas valve is closed. Defective gas valve (open coil in valve) For 208 or 230 volt controls, ignition transformer may not be wired correctly. Check wiring sequence for correct voltage application. Faulty diode logic board Gas pressure is too low. Check manifold pressure and take necessary corrective action. Defective gas valve (hi/lo coil) Incorrect gas/air mixture. Adjust air shutters of each burner. 127 8. 10. ll. Dryer operates, but is taking too long to dry. Dryer will not shut off. Tumbler will not reverse. Motor keeps overheating. Insufficient make-up air An inadequate exhaust duct work system Restriction in exhaust system Dryer exhaust damper is stuck partially closed. Insufficient make-up air Poor housekeeping....dirty or clogged lint screen Extractors are not performing properly. An exceptionally cold/humid or low barometric pressure atmosphere The supply gas may have a low heating value. Check with local gas supplier, Faulty temperature sensor (Temperature calibration is incorrect.) Faulty computer controller (Temperature calibration is incorrect.) Defective motor relay contactor Defective computer controller Improperly programmed computer Defective computer Defective reversing motor contactor Either an exceptionally low or high voltage supply Motor bearing failures 128 12. Dryer is cycling on burner hi-limit safety thermostat. 13. Main burners are burning with a yellow flame, 14. Display reads "dSFL", Dryer Sensor Circuit Failure. Motor thermal overload protector is defective. An idler or tumbler bearing failure Motor vents are blocked with lint. Defective motor Insufficient make-up air Insufficient exhaust duct work size or restriction in exhaust system Insufficient make-up air Lint screen needs cleaning. Damaged impellor (fan) Faulty A.S. board heat relay Faulty computer Burner air shutters need adjusting. Insufficient make-up air Dust or lint in the burner Faulty micro-processor tempera- ture sensor probe Open circuit in either one of two wires leading from sensor probe to computer (1) Connection at sensor bracket assembly connector (2) Connection at computer harness connector (3) Connection at inner top connector 129 15, 16. Dryer does not respond to command at keyboard. Dryer does not start. Display reads "door." Faulty computer controller Faulty keyboard label assembly Faulty computer controller Door switch (D.C. circuit) is out of adjustment or is defective. Open circuit in either one of the two gray wires leading from the door switch to the computer. 130 SECTION XV TECHNICAL DATA A. Adjustment of Internal Micro-switches in Motorized Steam Valve Always disconnect power supply to the actuator prior to re-setting switches. WARNING: INADVERTANT CONTACT WITH THE CAPACITOR COULD RESULT IN AN ELECTRICAL SHOCK. THIS COULD BE TRUE EVEN IF ELECTRICAL SUPPLY HAS BEEN DISCONNECTED AS CAPACITORS WILL STORE ELECTRICAL ENERGY. Remove the actuator cover. Viewing the actuator shaft from the top, note the location of the white circular CAM compression plate. Unlock CAM compression plate by pushing the plate down and rotating the plate out of the lock pin. Al11 3 CAMS are now unlocked and can be re-set. If clockwise rotation is incorrect, the top CAM shouid be re-set. If counter-clockwise rotation is incorrect, re-set the middle CAM, NOTE: while re-setting an individual cam, take care not to disrupt setting of other properly set cams. Bear in mind that when the valve is in its desired position (full open or fully closed), the appropriate switch arm must simultaneously drop into its cam detent to stop actuator rotation. Replace cover and retest. If further adjustment is necessary, repeat previous step. Once properly adjusted, secure all cover bolts as unit is ready for operation. Manual Operation - Should it become necessary to manually override the unit, first fully depress the actuator output shaft and then apply a wrench to the shaft flats to rotate the unit. CAUTION: FAILURE TO FULLY DEPRESS THE SHAFT WILL RESULT IN DAMAGE TO THE ACTUATOR. If limit switches are far enough out of adjustment, the unit could have both rotation circuits open, and the unit would not rotate in either direction. If unit still fails to rotate, check to see if a switch or switches are burned out. A burned switch will usually show evidence of excessive heat and will not make a "clicking" when the switch button is depressed using a pencil point. If switches are operational and defect has not been found, check to be sure that the valve due to service conditions has not had its torque increased beyond the capacity of the actuator. If so, the valve should be cleaned and rebuilt or replaced. If the motor shows evidence of running hot, thermal overload protection may have tripped the unit. Allow the unit to return to room temperature and re-test. 131 “DIODE LOGIC” CONTROL SYSTEM FOR COMMERCIAL GAS CLOTHES DRYERS The "Diode Logic” system expands the use of the simple “Split Coil” silicon carbide ignition system developed for residential gas clothes dryers to commercial clothes dryers. Functionaily, the "Diode Logic” system is identical to the “Split Coil” system but is tailored for the higher capacity 36C combination valve. The 5001A-1 "Diode Logic” board is a very simple and reliable device consisting of only seven active components all of which have ratings well above what they will see in the system application. 5 Diodes all rated at 1 AMP 400 VOLTS 1 Resistor rated 2 OHMS and 1 WATT 1 Resistor rated 3K OHMS and 5 WATTS A diode in an electric system acts as a check valve in a hydraulic system in that it allows an electric current to flow in only one direction. The symbol for a diode is shown below. ANODE > CATHODE Current flow through the diode occurs when the anode is positive and the cathode is negative. No current flows when the anode is negative and the cathode positive. The physical appearance of the diodes is as shown below. FIG. 1 ANODE CATHODE FIG. 2 SILVER BAND 120 VAC POWER SUPPLY у .+- DRYER CONTROL “T= SWITCHING Ï 1 Ц | SILICON r--19 CARBIDE VY IGNITER [I La LJ CR3 CR5 7 Г | i vi 1 SAL Vi a ma 3K 110% 5 WATTS -——] ——] —] —— —EXTERNAL WIRING FIG. 3 SCHEMATIC DIAGRAM — 5001A-1 DIODE LOGIC BOARD NORMAL OPERATION OF THE DIODE LOGIC SYSTEM When the system is energized current flows through the closed sensor contacts and through the silicon carbide igniter causing it to heat. Gas valve 2 (GV2) isshunted by the closed sensor contacts so it is not energized. When L1 is 132 positive gas valve 1 (GV1) is energized by a circuit through the closed sensor contacts and CR3. CRS is a back wave diode which maintains current flow through GV1 during the next half cycle when L1 is negative. When the igniter reaches ignition temperature the sensor contacts open. GV1 remains energized through the fuse R1, CR2 and resistor R2. GV2is energized on the half cycle when L2 is positive by a circuit through the silicon carbide igniter, CR1 and fuse R1. CR4 is a back wave diode which maintains current flow through GV2 during the next half cycle when L2 is negative. With both valves energized gas flows to the burner and is ignited by the hot igniter. In this running mode the igniter cools since current through it is limited by CR1 and GV2. RECYCLE AFTER MOMENTARY POWER INTERRUPTION On momentary power interruption GV1 and GV2 close. On resumption of power GV2 opens, but GV1 cannot open because of the current limiting affect of resistor R2. When the sensor cools and its contacts reclose GV2is shunted outand closes, GV1 opens and the silicon carbide igniter heatsand a normal cycle is started. IGNITER FAILURE The “Diode Logic” system also retains the safety feature of the 25K00 split coil system which prevents gas flow if the silicon carbide igniter is broken (the circuit energizing GV2 includes the silicon carbide igniter). The fuse (R1) insures safe operation should CR1 short. CR1 shorting would negate the recycle sequence after momentary power interruption and there is the possibility the igniter, energized on half wave, would hold the sensor contacts open but not be hot enough to light gas. ANALYZING THE 5001A-1 DIODE LOGIC BOARD The “Diode Logic” board may be tested with an Ohmmeter or Multi-Test meter set at RX100 to use for checking continuity. An Ohmmeter or a Multi-Test meter set to measure ohms or continuity is realiy a sensitive ammeter with a small battery connected in series. The + (positive) and - (negative) markings on the Multi-Test meter terminals indicate how the meter must be connected to measure DC current or voltage. When set to measure resistance (ohms) or continuity the meter becomes the power supply as well as the indicating meter and the polarity of the terminals may be reversed — the lead from the negative terminal may be positive and vice-versa. We suggest you check this characteristic of your meter using a separate diode as follows: The meter will show continuity when the positive ohmmeter output (regardiess of meter marking) is connected to the diode anode and the negative ohmmeter output is connected to the diode cathode. The meter will indicate an open circuit if the leads are reversed. Below -is a drawing of the actual 5001A-1 “Diode Logic” board with the terminals labeled as in the schematic diagram above. The terminals on an actual 5001A-1 board do not have the sub numbers required to differentiate between the V1, V2, FS and 1G terminals so in testing a board it will be necessary to refer to this drawing to physically locate the correct terminals for checking with the continuity meter. Once open, the 36 C00 gas valve must remain open when the system input voltage is reduced to a minimum of 90 VAC, 50/60 HZ. With the system in the normal running condition (senser switch open and both valves open) and power is restored after a momentary power interruption, the valve must remain closed and must not leak more than 500 CC/HR (500 CC is less than .01 CU. FT.) when the voltage is increased to 135 VAC 50/60 HZ. (О 5001A-1 =Г а | О To check these voltage operating characteristics, proceed as 120 VAC follows: 0 1. Adjust the power supply voltage to 81 VAC. v2 Lio=D [11 | = = = = . Cl he manually operat enser switch. vo Ef cra h {CR3 Io Ro ; кои и апи | y Pere eds switch . Close the contro! switch. V2, Pe FS@m |FS 1 | I 4. After approximately 30 seconds or when the igniter FS IG L2 Vi v1 appears to be up to ignition temperature, open the O | | | | | | manually operated senser switch. There must be no flow | O of gas to the dryer burners. FS) 1G; 16 L2 VI VI . Open the control switch. FIG. 4 With all external wiring disconnected, the 5001A-1 “Diode Lógic” must pass all the following continuity checks: With V2 positive, there must be electrical continuity between V2 and L1 - FS — V2; — FS, — 1G; With V2 negative, there must not be continuity between v2 and L1 — V2, With V1, negative, there must be continuity between V1, and V1 — L2 — 1G — FS, — L1 With V1, positive, there must not be continuity between The above checks are for continuity only. The meter needie will deflect different amounts for the various check points depending on the number of diodes or the presence or absence of a resistor in a particular leg of the circuit. CHECKING PERFORMANCE OF THE 36C00 GAS VALVE | The 36C00 gas valve for use in the “Diode Logic” system must meet certain special electrical performance requirements. For testing, the valve must be connected in the 11. 12. \ . Reclose the manually operated senser switch. . Adjust the power supply voltage to 102 VAC. . Close the control switch. © o N O di . After approximately 30 seconds or when the igniter appears to be up to ignition temperature, open the manually operated senser switch. Gas should immediately start flowing to the dryer burners and be ignited by the silicon carbide igniter. The system is now in a normal operating mode. . Reduce the power supply voltage to 90 VAC. The system should continue to operate normally. Adjust the power supply voltage to 120 VAC. Momentarily open and then reclose the control switch. Gas flow to the dryer burners must be interrupted and remain interrupted. With the manually operated senser switch still open, increase the power supply voltage to 135 VAC. Leakage through the valve should not exceed 500 CC/HR (500 CC is tess than .01 CU. FT.). DIODE LOGIC CONTROL SYSTEM SPST MANUALLY OPERATED SWITCH IN PLACE OF SENSOR “Diode Logic” system in accordance with the attached | circuit diagram. | RI Note the following: > © CRI i © e À SPST manually operated switch has been wired in Е =D, CR 2 = place of the senser. с =”? “a B ES. * The 36C00 valve must be mounted in a horizontal gas о FS [iG >. vi REDUNDANT line in the upright position — mounting tolerance + 15°. o | i o VALVE e inlet pressure to the 36C00 valve must not exceed 14" W.C. e All voltage measurements must be taken at the L1/L2 “Diode Logic” board terminals. OPERATING VOLTAGE CHARACTERISTICS SOD1A-1 DIODE LOGIC BOARD si SILICON CARBIDE IGNITER —h А The 36C00 gas valve must not open at a system input voltage of less than 82VAC, 50/60 HZ and must open at a system input voitage of 102 VAC, 50/60 HZ. MAIN VALVE 36C GAS VALVE FIG. 5 133 Ignition Circuit Transformer Wiring (208/230 Volt Models Only) 200 Watt Transformer ADC P/N 132002 208 Vac Controls U PRIMARY (INPUT) 0) = 3 T — Lud > AUTO XEMR > (DEAD ENDED) — 1 D | He N WHITE SECONDARY (OUTPUT) 115 VAC | 2 > + (À 230 Vac Controls PRIMARY (INPUT) LJ — с) = & = AUTO XFMR (DEAD ENDED) —— —— O o ge xI z SECONDARY (QUTPUT) D 115 VAC ()+ # LEAD NOT USED ON COMPUTER HI£LO MODELS 134 POWER DISTRIBUTION ~~ MODEL ADE -100 208-240 v. 3@ 60Hz. #0 AWG 180°C 300v. OVEN 7 SET #8 AWG 180 °C 300 v. à o| 6 © | 2 3 4 5 6 | 7 8 9 TERMINAL to fi o on 15 os 17 e | [4 O O O BLOCKS О О O "4 AWG 125°C 300v of MAGNETIC TS | | | CONTACTORS | J “4 AWG 125°C 300v. [TNX CONTROLS N ; & MOTORS _ Ч — 208-240. оо SS TERMINAL 25°C 3004 GND. q BLOCK | | 2/0 AWG 125 °C 300v POWER DISTRIBUTION MODEL ADE-100 416-480v 30 60Hz * 0 AWG N 00€ 600 у. > OVEN 3 4 Kw | 4 3 Kw 3 3 4 3. 8 AWG 180 C 600 у. O O о о © | O оО TERMINAL |1 2314 5 617 8 9 BLOCK о | 9 | 9 LI L2 L3 | ВЕ CONTROLS # ° 208 | 4 AWG 125°C 600у, ОДО, 5 +1 MAGNETIC оо CONTACTOR GND 416 v 10 208v 480 v - 240v F- XFMR #2 AWG 7 ) | 125 °C - MOTORS 600 v. > 416, 125 С 600 у 136 LET 208/240v. ELEC. QVE ADE-100 220-240u OVENS SOKw, 60 Hz, 39 ELEMENT ARRANGEMENT, INTERCONNECTIONS, AND — USE 240v. ELEMENTS LINE LEAD IDENTIFICATION (NOT TO SCALE) o 2 10be MUS 5 > ELEMENT KW. RATING (3 KW or 4 KW) MARKED ON ELEMENT | FRAME No | A 6 # 12 15 ONG ЗОО у, H= HIGH AMPROBE RDG. L= LOW " " READING | 23456789 101112 1314 I5 1617 18 TEST 8v. ololojlojo|o]ololo] |ololololololololo CH oot 3-H R294. oa LI L2 | L3 LI L2 L3 4-H 6-H ir avg, L= 25 A, ¿ta O 7-L 8-H - 240 v. TYP © O О О О 10 - и-Н 12-H H= 25 A TERMINAL BLOCK “| TERMINAL BLOCK #2 13- H 14-L 15-H Fa L=22 A TO CONTACTOR * | TO CONTACTOR #2 16 - H | 7-H 18-L OEI 416 v. OVENS USE - 100 208 v ELEMENTS. 440 - 480v. OVENS USE 416v. / 480v. ELEC.OVEN ADE ELEMENT ARRANGEMENT, \ / (EXAMPLE) MAY A 807! INTERCONNECTIONS, & "EE la 240v. ELEMENTS, LINE LEAD IDENTIFICATION el НЕ (NOT TO SCALE) ELEMENT RIN / KW. RATING SOKW, 60 Hz. 3 (3Kw_OR 4 Kw) и ™ “8 AWG on" 2 L ® 180° вео © N“ AMpRoßE ® | y ® Y 4H SL BL @ READING а о у aL" LOWAMPROBE ть 8H 9 oy TY READING FC 4s 480v. LI L2 TERM BLOCK L3 H= 23 AMPS He 25A. Le 25A. Le 22 A. ® American Dryer Corp. ADC450075 1 -03/90-250 2 - 12/11/95-200 3 - 02/28/01-25 ">

Public link updated
The public link to your chat has been updated.
Advertisement
Key features
- Durable construction
- High performance drying
- Safety features
- Lint filter
- Exhaust requirements
- User manual
Frequently asked questions
Ensure the dryer is properly grounded and connected to the appropriate electrical service. Never store or use flammable materials near the dryer. Refer to the user manual for detailed safety instructions.
Regularly inspect and clean the lint filter as per the instructions in the user manual. Lint buildup can cause issues with airflow and drying performance.
Immediately shut off the gas supply and evacuate the area. Call your gas supplier or the fire department for assistance.
Related
