American Dryer Corp. ML-75DIII Installation Manual Download Page 60

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OPTIONAL MANUAL BYPASS

Provisions are made in the dryer fire suppression system (F.S.S.) system for the installation of an optional

manual bypass. Depending on the model dryer, the connections for the manual bypass are made at the T or

four way fitting located in the outlet supply side of the water solenoid valve. The use and connections of this

manual bypass are at the option or discretion of the owner.

The water connection for the manual bypass is made to the T or four way fitting which has a 3/8 F.P.T. and

a coupling

must be

used to provide the minimum 1/2-inch (12.7 mm) supply (feed) line.

If the rear area of the dryer, or the water supply is located in an area where it will be exposed to cold/freezing

temperatures, provisions

must be

made to protect these water lines from freezing.

WARNING:

If the water in the supply line or water solenoid valve freezes, the F.S.S. system

will be

INOPERATIVE!!

The manual ball cock shutoff valve

must be

located outside of the dryer at a distance from the dryer where it is

easily accessible.

Summary of Contents for ML-75DIII

Page 1: ... gas supplier call the firedepartment Installation and service must be performed by a qualifiedinstaller serviceagencyorthegas supplier AVERTISSEMENT Assurez vousdebien suivrelesinstructionsdonnéesdanscette noticepourréduireauminimumlerisque d incendieoud explosionoupourévitertout dommagematériel touteblessureoulamort Ne pas entreposer ni utiliser d essence ni d autresvapeursouliquidesinflammables...

Page 2: ...appareil We have tried to make this manual as complete as possible and hope you will find it useful ADC reserves the right to make changes from time to time without notice or obligation in prices specifications colors and material and to change or discontinue models Important For your convenience log the following information DATE OFPURCHASE ____________________________ MODEL NO __________________...

Page 3: ...VISEDIFNEARDRYER S INOPERATION DRYER S SHOULDNEVERBELEFTUNATTENDEDWHILEINOPERATION CAUTION FOR YOUR SAFETY DONOTDRYMOPHEADSINTHEDRYER DONOTUSEDRYERINTHEPRESENCEOFDRYCLEANINGFUMES WARNING UNDER NO CIRCUMSTANCES should the dryer door switches lint door switch heat safety circuit ever be disabled Caution Label all wires prior to disconnection when servicing controls Wiring errors can cause improper o...

Page 4: ...layed on the equipment and or specified in the installation 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 The wiring diagram for the dryer is located in the front electrical control box area DRYER MUST NEVER BE OPERATEDWITHOUTTHE LINTFILTER SCREEN IN PLACE EVENIFANEXTERNALLINTCOLLECTIONSYSTEMISUSED WARNING ...

Page 5: ...0 B Unpacking SettingUp 11 C DryerEnclosureRequirements 12 D FreshAirSupply 13 E ExhaustRequirements 14 F ElectricalInformation 19 G GasInformation 27 H SteamInformation 30 I Preparation For Operation Start Up 35 J PreoperationalTests 36 K PreoperationalInstructions 38 L ShutDownInstructions 39 SECTION IV SERVICE PARTS INFORMATION 40 A Service 40 B Parts 40 SECTION V WARRANTY INFORMATION 41 A Retu...

Page 6: ...ING TIMER SPIN DWELL ADJUSTMENTS 48 SECTION IX DATA LABEL INFORMATION 49 A Data Label 49 SECTION X BURNER AND BASKET TUMBLER LINT CHAMBER MANUAL RESET HI LIMIT INSTRUCTIONS 51 Phase 7 Models Only 51 DualTimerModelsOnly 52 SECTION XI FIRE SUPPRESSION SYSTEM F S S 53 F S S InAction 53 Installation 54 Water Connections 55 ElectricalRequirements 57 SystemReset 57 Parts List 59 ...

Page 7: ... number received and the number refused must be noted on the receipt 4 If you determine that the dryer was damaged after the trucker has left your location you should call the delivering carrier s freight terminal immediately and file a claim The freight company considers this concealed damage This type of freight claim is very difficult to get paid and becomes extremely difficult when more than a...

Page 8: ...call your gas supplier from a neighbor s phone Follow the gas supplier s instructions f If you cannot reach your gas supplier call the fire department 4 Installation and service must be performed by a qualified installer service agency or gas supplier 5 Dryer s must be exhausted to the outdoors 6 Although ADC produces a very versatile dryer there are some articles that due to fabric composition or...

Page 9: ...d cooling cycles have been completed can create a fire hazard 12 DO NOT operate steam dryers with more than 125 PSI 8 62 bars steam pressure Excessive steam pressure can damage steam coil and or harm personnel 13 Replace leaking flexible hoses or other steam fixtures immediately DO NOT operate the dryer with leaking flexible hoses PERSONAL INJURY MAY RESULT 14 The normal PH level for copper type s...

Page 10: ...PPROX WEIGHT CRATED 771 lbs 349 7 kg HEAT INPUT 200 000 btu hr 50 400 kcal hr AIRFLOW 1 200 cfm 33 98 cmm INLET PIPE SIZE 3 4 N P T VOLTAGE AVAILABLE 208 460v 1ø 3ø 50 60 Hz APPROX WEIGHT UNCRATED 721 lbs 327 kg APPROX WEIGHT CRATED 771 lbs 349 7 kg AIRFLOW 1 200 cfm 33 98 cmm VOLTAGE AVAILABLE 120 460v 1ø 3ø 50 60 Hz APPROX WEIGHT UNCRATED 757 lbs 343 4 kg APPROX WEIGHT CRATED 807 lbs 366 1 kg AI...

Page 11: ...7 NOTE ADC reserves the right to make changes in specifications at any time without notice or obligation Specifications MLG 75D MLE 75 MLS 75 ...

Page 12: ...ew Illus No Description 1 Controls 2 Control top access Door Assembly 3 Main DoorAssembly 4 Lint Compartment Area lint screen located behind door 5 Data Label and Installation Label located on the left side panel wall area behind the control door ...

Page 13: ... 4 Basket Tumbler Bearing Mount Assembly 5 Idler Bearing MountAssembly 6 Blower Motor Assembly 7 Leveling Leg rear 8 Basket Tumbler Drive Motor Assembly reversing models Only 9 Dryer Exhaust Electric service connections for gas and steam models are made in this box NOTE 1 8 inch compressed air supply inlet for steam models only is located behind the electric service relay box ...

Page 14: ...d level floor capable of supporting its weight Carpeting must be removed from the floor area that the dryer is to rest on IMPORTANT The dryer mustbeinstalledonnoncombustiblefloorsonly 2 The dryer must not be installed or stored in an area where it will be exposed to water and or weather 3 The dryer is for use in noncombustible locations 4 Provisions for adequate air supply must be provided as note...

Page 15: ...nt door With the skid removed to make it easier to slide the dryer into its final position slightly lower ALL four 4 leveling legs so that the dryer will slide on the legs instead of the base frame To increase bearing life and improve efficiency the dryer should be tilted slightly to the rear IMPORTANT For microprocessor controller computer models this wooden block must be removed before connectin...

Page 16: ...ce must be made for the opening and closing of the control door and the lint door It is suggested that the dryer be positioned about 30 inches 76 2 cm away from the nearest obstruction for ease of installation maintenance and service to be measured from the back guard Refer to the illustration above for details NOTE Air considerations are important for proper and efficient operation IMPORTANT For ...

Page 17: ...ate for the use of registers or louvers used over the openings this make up air must be increased by approximately thirty three percent 33 Make up air openings should not be located in an area directly near where exhaust vents exit the building It is not necessary to have a separate make up air opening for each dryer Common make up air openings are acceptable However they must be set up in such a ...

Page 18: ... than two 2 elbows are used the cross sectional area of the ductwork must be increased ALL ductwork should be smooth inside with no projections from sheet metal screws or other obstructions which will collect lint When adding ducts the duct to be added should overlap the duct to which it is to be connected ALL ductwork joints must be taped to prevent moisture and lint from escaping into the buildi...

Page 19: ...e Dryer Venting Where possible it is suggested to provide a separate exhaust duct for each dryer The exhaust duct should be laid out in such a way that the ductwork travels as directly as possible to the outdoors with as few turns as possible It is suggested that the use of 90 turns in the ducting be avoided use 30 and or 45 angles instead The shape of the exhaust ductwork is not critical so long ...

Page 20: ...gic points in the exhaust ductwork for periodic inspection and cleaning of lint from the ductwork NOTE When the exhaust ductwork passes through a wall ceiling or roof made of combustible materials the opening must be 2 inches 5 08 cm larger than the duct all the way around The duct mustbe centered within this opening a Outside Ductwork Protection 1 To protect the outside end of horizontal ductwork...

Page 21: ...t 9 14 meters and each 45º elbow is equivalent to an additional 15 feet 4 6 meters IMPORTANT For extended ductwork runs the cross section area of the ductwork can only be increased to an extent Maximum proportional ductwork runs cannot exceed 15 feet 4 6 meters with two 2 elbows When the ductwork approaches the maximum limitsasnotedinthismanual aprofessionalheating venting andairconditioning HVAC ...

Page 22: ...18 ...

Page 23: ...l Codes Parts 1 2 CSAC22 1 1990 or LATEST EDITION IMPORTANT Failure to comply with these codes or ordinances and or the requirementsstipulated in thismanualcanresultinpersonalinjuryorcomponentfailure NOTE ComponentfailureduetoimproperinstallationwillVOIDTHEWARRANTY Each dryer should be connected to an independently protected branch circuit The dryer must be connected with copper wire only DO NOT u...

Page 24: ... at any time without notice or obligation MLG 75 GAS MLS 75 STEAM ELECTRICAL SERVICE SPECIFICATIONS PER DRYER IMPORTANT 208 VAC and 240 VAC ARE NOT THE SAME When ordering specify exact voltage NOTES A Fuse ratings are dual element time delay current limiting class RK1 or RK5 ONLY B Circuit breakers are thermal magnetic industrial motor curve type ONLY For others calculate verify correct breaker si...

Page 25: ...reserves the right to make changes in specifications at any time without notice or obligation IMPORTANT 3 phase 3ø figures shown are for a 3 wire service only APPROX AMP DRAW MLE 75 ELECTRIC ELECTRICAL SERVICE SPECIFICATIONS PER DRYER IMPORTANT 208 VAC and 240 VAC ARE NOT THE SAME When ordering specify exact voltage NOTES A Fuse ratings are dual element time delay current limiting class RK1 or RK5...

Page 26: ...trical ground If there are any nonmetallic interruptions such as a meter pump plastic rubber or other insulating connectors they must be jumped out with no 4 copper wire and securely clamped to bare metal at both ends IMPORTANT For personal safety and proper operation the dryer must be grounded Provisions are made for ground connection in each dryer at the electrical service connection area 4 Elec...

Page 27: ...Models Only The electrical connections on ALL 3 phase 3ø gas and steam dryers are made into the rear service box located at the upper left area of the dryer Electrical connections for electrically heated dryers are made in the electric oven area located at the upper rear area of the dryer NOTE ACIRCUIT SERVICINGEACH DRYER MUST BE PROVIDED If local codes permit power to a gas or steam dryer can be ...

Page 28: ...hase 1ø input connection is required on a 3 phase 3ø dryer For gas and steam dryers manufactured for operation at 3 phase 3ø the electrical connections are made at the power distribution block located in the service box at the rear upper left corner of the dryer The ground connection is made to the copper lug also provided in this box To gain access to the service box contactor the service box cov...

Page 29: ...e dryer can be hard wired directly to the service breaker panel In ALL cases a strain relief must be installed where the wiring enters the dryer The only electrical input connections to the dryer are the 3 phase 3ø power leads L1 L2 L3 and sometimes neutral and ground Single phase 1ø power for the control circuit is done internally to the dryer No single phase 1ø input connection is required on a ...

Page 30: ...t be grounded Aground lug has been provided for this purpose Input connection wiring must be sized properly to handle the dryer s current draw This information is printed on the dryer s data label IMPORTANT A separate circuit servicing each dryer must be provided The electrical input connections are made at the electric oven contactor located inside the assembly at the rear center upper section of...

Page 31: ...e irreparable damage to the gas valve VOIDINGTHEWARRANTY WARNING FIRE OR EXPLOSION COULD RESULT 1 Gas Supply The gas dryer installation must meet the American National Standard National Fuel Gas Code ANSI Z223 1 LATESTEDITION or in Canada the Canadian Installation Codes CAN CGA B149 1 M91 Natural Gas or CAN CGA B149 2 M91 L P Gas or LATEST EDITION as well as local codes and ordinances and must be ...

Page 32: ...5 inches 26 1 mb water column There is no regulator or regulation provided in an L P dryer The water column pressure must be regulated at the source L P tank or an external regulator must be added to each dryer TYPE OF GAS L P Conversion Kit Part Number MODEL NUMBER BTU Per Hour Rating kcal hr Rating Natural Liquid Propane Qty D M S Part Number Qty D M S Part Number MLG 75 200 000 50 400 4 29 1408...

Page 33: ... BTUs being supplied The dryer is provided with a 3 4 inch N P T inlet pipe connection located at the right side of the base of the dryer The minimum pipe size supply line to the dryer is 3 4 inch N P T For ease in servicing the gas supply line of each dryer must have its own shutoff valve The size of the main gas supply line header will vary depending on the distance this line travels from the ga...

Page 34: ...91 Natural Gas or CAN CGA B149 2 M91 L P Gas or LATEST EDITION for General Installation and Gas Plumbing as well as local codes and ordinances and must be done by a qualified professional It is important that gas pressure regulators meet applicable pressure requirements and that gas meters be rated for the total amount of ALL the appliance BTUs being supplied IMPORTANT The dryer and its individual...

Page 35: ...inimum 10 inch 25 4 cm riser This will prevent any condensate from draining towards the dryer b The steam supply piping to the dryer must include a 12 inch 30 48 cm rise along with a drip trap and check valve This will prevent any condensate from entering the steam coil c Flexible hoses or couplings must be used The dryer vibrates slightly when it runs and this will cause the steam coil connection...

Page 36: ...to drain to the header Install a bypass trap in any low point to eliminate wet steam IMPORTANT Flexiblehose coupling mustbeused Coilfailureduetohardplumbingconnections willVOIDTHEWARRANTY 4 Steam Damper Air System Connections The MLS 75 is manufactured with a pneumatic piston damper system which requires an external supply of compressed air The air connection is made to the steam damper solenoid v...

Page 37: ...expansion and contraction When the damper is opened the air immediately passes through the already hot coil providing instant heat to start the drying process When the damper is closed ambient air is drawn directly into the basket tumbler allowing a rapid cool down Diagram 2 Diagram 1 shows the damper in the heating open mode allowing heat into the basket tumbler Diagram 2 shows the damper in the ...

Page 38: ...djusted prior to shipping at 80 PSI 5 51 bars steam damper operation must be checked before the dryer is put into operation Refer to page 33 for instructions to check steam damper system operation If steam damper adjustment is necessary locate the flow control valve and make the necessary adjustments as noted below ...

Page 39: ...djusted at the factory prior to shipping However each sail switch adjustment must be checked to assure that this important safety control is functioning refer to Sail Switch Adjustment on page 37 5 GAS MODELS Be sure that ALL gas shutoff valves are in the open position 6 Be sure ALL side and base panels are on the dryer 7 Check ALL service doors to insure that they are closed and secure 8 Be sure ...

Page 40: ...ablishedwithinthree 3 times theheatcircuitintheDSI module will LOCKOUT until it is manually reset To reset the DSI system open and close the main door and restart the dryer b A gas pressure test should be taken at the gas valve pressure tap of each dryer to assure that the water column W C pressure is correct and consistent NOTE Water column pressure requirements measured at the pressure tap of th...

Page 41: ...roperly BASKETCOATING The basket tumbler is treated with a protective coating We suggest dampening old garments or cloth material with a solution of water and nonflammable mild detergent and tumbling them in the basket tumbler to remove this coating 8 Make a complete operational check of ALL operating controls a For microprocessor model check controller computer programs selections 1 Each micropro...

Page 42: ...ntroller Computer Dryers 1 Light emitting diode L E D display will read REAdY meaning no cycle in progress 2 Press the letter on the keyboard touch pad corresponding to the cycle desired i e key E a The dryer will then start rotate 3 L E D display will now show Cycle In Progress and Cycle Status meaning that the dryer is in the drying cycle dry mode for 30 minutes and count downwards in minutes NO...

Page 43: ...IONS If the dryer is to be shutdown taken out of service for a period of time the following must be performed 1 Discontinue power to the dryer either at the external disconnect switch or the circuit breaker 2 Discontinue the heat supply a GAS MODELS discontinue the gas supply 1 SHUT OFF external gas supply shutoff valve 2 SHUT OFF internal gas supply shutoff valve located in the gas valve burner a...

Page 44: ...ndserialnumbersothatyourinquiryishandledinanexpeditiousmanner B PARTS 1 Replacement parts should be purchased from the reseller from whom the ADC equipment was purchased If the reseller cannot be contacted or is unknown contact the ADC Parts Department for a reseller in your area Parts may also be purchased directly from the factory by calling the ADC Parts Department at 508 678 9000 or you may FA...

Page 45: ... you purchased the equipment and request a dryer warranty form If the reseller cannot be contacted or is unknown warranty information can be obtained from the factory by contacting the ADC Warranty Department at 508 678 9000 NOTE Whenever contacting the ADC factory for warranty information be sure to have the dryer s model number and serial number available so that your inquiry can be handled in a...

Page 46: ... in transit Damage claims are the responsibility of the shipper IMPORTANT No replacements credits or refunds will be issued for merchandise damaged in transit 5 ALL returns should be shipped to the ADC factory in such a manner that they are insured and a proof of delivery can be obtained by the sender 6 Shipping charges are not the responsibility of ADC ALL returns should be prepaid to the factory...

Page 47: ...ls shown are for average usage which is considered six 6 to eight 8 operational running hoursperday IMPORTANT Dryer produces combustible lint and must be exhausted to the outdoors Every 6 months inspecttheexhaustductingandremoveanylintbuildup SUGGESTED CLEANING SCHEDULE EVERY THIRD or FOURTH LOAD Clean the lint screen every third or fourth load A clogged lint screen will cause poor dryer performan...

Page 48: ...OW OF COMBUSTION AND VENTILATIONAIR CHECK CUSTOMER FURNISHED BACK DRAFT DAMPERS IN THE EXHAUST DUCTWORK INSPECT AND REMOVEANY LINTACCUMULATION WHICH CAN CAUSE THE DAMPER TO BIND OR STICK NOTE A back draft damper that is sticking partially closed can result in slow drying and shutdown of heatcircuitsafetyswitchesorthermostats NOTE When cleaning the dryer cabinet s avoid using harsh abrasives Aprodu...

Page 49: ...et tumbler bearings if you choose to do so even though this practice is not necessary Use Shell Alvania 2 grease or its equivalent The basket tumbler bearings used in the dryer DO NOT have a grease fitting Provisions are made in the bearing housing for the addition of a grease fitting which can be obtained elsewhere or from ADC by ordering kit P N 882159 includes two 2 fittings ...

Page 50: ... installation of the replacement microprocessor controller computer board reestablish power to the dryer b Start the drying cycle by pressing any of the preset cycles in letters A F c Verify that the applicable indicator lights on the back side of the microprocessor controller computer board are lit Refer to the illustration below ...

Page 51: ... The DSI module will LOCKOUT if the gas burner flame is not sensed at the end of the trial for ignition period The trial for ignition period will be repeated for a total of three 3 retries trials the initial try and two 2 more retries trials If the flame is not sensed at the end of the third retry trial inter purge period of 30 seconds the DSI module will LOCKOUT light emitting diode L E D flashes...

Page 52: ... area of the dryer Both the dwell stop time and basket tumbler spin time are adjustable by mode selection switches located on the electronic timer as noted in the illustration below TIMING LEGEND SPIN TIME Adjustment Position Number 1 2 3 4 5 Time in Seconds 30 60 90 120 150 DWELL Stop TIME Adjustment Position Number 1 2 3 4 5 Time in Seconds 5 6 3 7 6 8 9 10 2 Values shown are 1 second ...

Page 53: ...poration certain information is required to insure proper service parts information from American Dryer Corporation This information is on the data label located on the left side panel wall area behind the control door When contacting American Dryer Corporation please have the model number and serial number available ...

Page 54: ... particular model 4 TYPE OF HEAT This describes the type of heat for your particular dryer gas either natural gas or liquid propane L P gas or steam 5 HEAT INPUT for GAS DRYERS This describes the heat input in British Thermal Units per Hour BTUH 6 ORIFICE SIZE for GAS DRYERS Gives the number drill size used 7 ELECTRIC SERVICE This describes the electric service for your particular model 8 GAS MANI...

Page 55: ...de described above along with an audio indication If the drum temperature is above 100 F 38 C the dryer will continue to run with no heat for 3 minutes or until the drum temperature has dropped below 100 F 38 C The clear stop button on the Phase 7 keyboard touch pad must be pressed to clear the error condition The open manual reset hi limit thermostat must be reset manually prior to the start of t...

Page 56: ... will start or continue through the drying cycle with no heat Manual reset hi limit must be reset manually This hi temperature condition may be caused due to a restricted exhaust poor airflow or improper heating unit operation The location of the manual reset hi limit is in the lint chamber area WARNING Discontinuepowertodryerbeforeattemptingtoresethi limit IMPORTANT This dryer is equipped with a ...

Page 57: ...es and will automatically activate again if a fire condition remains or reignites While the water jets are activated the basket tumbler will jog to move the water throughout the load The microprocessor will display that the system was activated and will continue to display until the dryer is attended to We have tried to make this manual as complete as possible and hope you will find it useful ADC ...

Page 58: ...ATION 1 Requirements The connection point to the electric water solenoid valve is a 1 2 M P T the F S S must be supplied with a minimum water pipe size of 1 2 inch and be provided with 40 PSI 20 PSI 2 75 bars 1 37 bars ofpressure Foruseofoptionalmanualbypass asecondsourcewiththesamepipingandpressure requirementsisrequired Flexible 1 2 feeds must be provided to avoid damage to electric water soleno...

Page 59: ...asa3 8 M P T connectionanda1 2 bushingissupplied toprovidetheminimum1 2 inchsupply feed line Flexible supplyline couplingmustbeusedinefforttoavoiddamage toelectricwatersolenoidvalve IMPORTANT Flexiblesupplyline coupling mustbeused Solenoidvalvefailureduetohard plumbing connectionsWILLVOIDWARRANTY It is recommended that a filter orstrainerbeinstalledinthewatersupplyline Typical water supply ...

Page 60: ...terconnectionforthemanualbypassismadetothe T or fourway fittingwhichhasa3 8 F P T and a coupling must beusedtoprovidetheminimum1 2 inch 12 7mm supply feed line If the rear area of the dryer or the water supply is located in an area where it will be exposed to cold freezing temperatures provisions must be made to protect these water lines from freezing WARNING If the water in the supply line or wat...

Page 61: ...ure rise 25 F 3 8 C greater than set point this will be the trip point and the F S S routinewillactivate Once the F S S routine is activated water will be injected into the basket tumbler chamber Anytime water is being injected into the basket tumbler the basket tumbler drive will turn the load for 1 second every 15 seconds This process will continue for a minimum of 3 minutes After 3 minutes has ...

Page 62: ... 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 composite of the various dryer models Be sure to check the descriptions of the parts thoroughly before ordering We have tried to make this manual as complete as possible and hope you will find it useful ...

Page 63: ...omp x 3 8 M P T Brass Connector 5 143099 6 3 8 OD x 0 035 Wall Copper Tubing 6 311588 1 Sprinkler Head Mounting Plate 7 143303 1 3 8 N P T Brass Locknut 8 143155 1 3 8 Brass Elbow 90 9 150430 2 10 x 1 2 Self Drilling Screw 10 150301 2 8 18 x 7 16 TEK Screw 11 143581 1 3 GPM 3 8 F P T Spray Nozzle 12 142888 1 1 2 to 3 8 Bushing For F S S Valve Sold by the foot ...

Page 64: ...iption 1 822752 1 F S S Temperature Probe Assembly includes illus nos 1 through 5 2 154007 2 Push On Fastener 3 390390 1 Sensor Bracket Only 4 150301 2 8 18 Phillips PH TEK Screw 5 122647 1 Connector ONLY does not include terminals ...

Page 65: ...ADC113343 1 09 26 01 25 ...

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