American Dryer Corp. ML-758 Installation Manual Download Page 39 | Manualshive

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35

SECTION VI

ROUTINE MAINTENANCE

A. CLEANING

A program and/or schedule

should be

established for periodic inspection, cleaning, and removal of lint from

various areas of the dryer, as well as throughout the ductwork 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 airflow.  If the guidelines in this section are met, an

ADC

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

.

WARNING: KEEP DRYER AREA CLEAR AND FREE FROM COMBUSTIBLE

MATERIALS, GASOLINE, AND OTHER FLAMMABLE VAPORS AND
LIQUIDS

.

NOTE:

Suggested time intervals shown are for average usage, which is considered six (6) to eight (8)
operational (running) hours per day.

IMPORTANT:

Dryer produces combustible lint and

must be

exhausted to the outdoors. Every

6 months, inspect the exhaust ducting and remove any lint buildup.

SUGGESTED CLEANING SCHEDULE

EVERY THIRD OR FOURTH LOAD

Clean the lint screen every third or fourth load.  A clogged lint screen will cause poor dryer performance.  The
lint screen is located in a drawer below the main door.  Open the lint drawer, brush or vacuum the lint off the lint
screen, and remove the lint.  Inspect lint screen and replace if torn.

NOTE:

The frequency of cleaning the lint screen can best be determined from experience at each
location.

WEEKLY

Clean lint accumulation from lint chamber, thermostat, and microprocessor temperature sensor (sensor bracket)
area.

WARNING: TO AVOID THE HAZARD OF ELECTRICAL SHOCK, DISCONTINUE

ELECTRICAL SUPPLY TO THE DRYER

.

STEAM DRYERS

Clean the steam coil fins. We suggest using compressed air and a vacuum cleaner with brush attachment.

WARNING:

When cleaning steam coil fins, be careful not to bend the fins. If fins are bent, straighten
by using a fin comb, which is available from local air-conditioning supply houses.

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Summary of Contents for ML-758

Page 1: ...uivre les instructions données dans cette notice pour réduire au minimum le risque d incendie ou d explosion ou pour éviter tout dommage matériel toute blessure ou la mort Ne pas entreposer ni utiliser d essence ni d autres vapeurs ou liquides inflammables à proximité de cet appareil ou de tout autre appareil QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ Ne pas tenter d allumer d appareils Ne touchez ...

Page 2: ...__________________________________________ SERIAL NUMBER S ______________________________________________________________________________________ _______________________________________________________________________________________________________ _______________________________________________________________________________________________________ Replacement parts can be obtained from your re...

Page 3: ...rors can cause improper operation Attention Au moment de l entretien des commandes étiquetez tous les fils avant de les débrancher Des erreurs de câblage peuvent entraîner un fonctionnement inadéquat et dangereux Proposition 65 Use of this product could expose you to substances from fuel combustion that contain chemicals known to the State of California to cause cancer birth defects and other repr...

Page 4: ...N EXTERNAL LINT COLLECTION SYSTEM IS USED Dryer must not be installed or stored in an area where it will be exposed to water or weather The wiring diagram for the dryer is located in the front electrical control box area IMPORTANT Dryermustbeinstalledinalocation environment whichtheambienttemperature remains between 40 F 4 44 C and 130 F 54 44 C FOR YOUR SAFETY DO NOT DRY MOP HEADS IN THE DRYER DO...

Page 5: ...Operation Start Up 26 J Preoperational Test 27 K Preoperational Instructions 29 L Shutdown Instructions 31 SECTION IV SERVICE PARTS INFORMATION 32 A Service 32 B Parts 32 SECTION V WARRANTY INFORMATION 33 A Returning Warranty Cards 33 B Warranty 33 C Returning Warranty Parts 33 SECTION VI ROUTINE MAINTENANCE 35 A Cleaning 35 B Adjustments 36 C Lubrication 36 D Lint Drawer Removal 37 SECTION VII DA...

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

Page 7: ...YOR FIRE COULD RESULT SHOULD THE DRYER DOOR SWITCHES LINT DRAWER SWITCH OR HEAT SAFETYCIRCUIT EVER BE DISABLED 10 This dryer is not to be used in the presence of dry cleaning solvents or fumes 11 Remove articles from the dryer as soon as the drying cycle has been completed WARNING Articlesleftinthedryerafterthedryingandcoolingcycleshavebeencompletedcan create a fire hazard 12 READ AND FOLLOW ALL C...

Page 8: ...ATE NET WEIGHT 721 lb 327 04 kg APPROXIMATE SHIPPING WEIGHT 773 lb 350 63 kg AIRFLOW 60 Hz 1 000 cfm 28 32 cmm 50 Hz 833 cfm 23 60 cmm EXHAUST CONNECTION DIAMETER 8 20 32 cm COMPRESSED AIR CONNECTION N A COMPRESSED AIR VOLUME N A OVEN SIZE kW Btu hr kcal hr 30 102 400 25 800 VOLTAGE AVAILABLE 120 575V 1 3ø 2 3 4w 50 60 Hz APPROXIMATE NET WEIGHT 816 lb 370 13 kg APPROXIMATE SHIPPING WEIGHT 868 lb 3...

Page 9: ...113226 11 www amdry com 5 Specifications Gas Electric Steam NOTE ADC reserves the right to make changes in specifications at any time without notice or obligation ...

Page 10: ...s No Description 1 Controls 2 Control top access Door Assembly 3 Main DoorAssembly 4 Lint Compartment Area lint screen located in lint drawer 5 Lint Drawer 6 Data Label and Installation Label B COMPONENT IDENTIFICATION 1 Dryer Front View ...

Page 11: ...1 Heating Unit 2 Electric Service Relay Box 3 Basket tumbler Bearing Mount Assembly 4 Idler Bearing MountAssembly 5 Blower Motor Assembly for reversing models only 6 Leveling Legs rear 7 Basket drive Motor Assembly 8 Dryer Exhaust 2 Dryer Rear View ...

Page 12: ...on a sound level floor capable of supporting its weight Carpeting must be removed from the floor area that the dryer is to rest on IMPORTANT Thedryermustbeinstalledonnoncombustiblefloorsonly 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 ...

Page 13: ... the bolt located in the lint chamber area remove the lint drawer Leveling Dryer The dryer is equipped with four 4 leveling legs one 1 at each corner of the base Two 2 are located at the rear of the dryer base and two 2 are located in the lint chamber coop To increase bearing life and improve efficiency the dryer should be tilted slightly to the rear C DRYER ENCLOSURE REQUIREMENTS Bulkheads and pa...

Page 14: ...odule is required D FRESH AIR SUPPLY REQUIREMENTS When the dryer is operating it draws in room air heats it passes this air through the basket tumbler and exhausts it out of the building Therefore the room air must be continually replenished from the outdoors If the make up air is inadequate drying time and drying efficiency will be adversely affected Ignition problems and sail switch fluttering p...

Page 15: ... 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 solvent fumes Make upairthatiscontaminatedbydrycleaningsolventfumeswillresultin irreparable damage to the motors and other dryer components NOTE ComponentfailureduetodrycleaningsolventfumeswillVOIDTHEWAR...

Page 16: ...ork from the dryer to the outside exhaust outlet must not exceed 15 feet 4 57 meters The minimum diameter of this ductwork must be at least 8 inches 20 32 cm In the case of multiple common dryer venting the distance from the last dryer to the outside exhaust outlet must not exceed 15 feet 4 57 meters The shape of the ductwork is not critical as long as the minimum cross sectional area is provided ...

Page 17: ...ested 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 as long as the minimum cross section area is provided NOTE As per the National Fuel Gas Code Exhaust ducts for type 2 clothes dryers shall be constructedofsheetmetalorothernoncombustiblematerial Suchductsshallbeequivalentin strength and corrosion resistance to ...

Page 18: ...creased to an extent When the ductwork approaches the maximum limits noted in thismanual aprofessionalheating ventilating andair conditioning HVAC firm shouldbeconsulted for proper venting information IMPORTANT DO NOT use screens louvers or caps on the outside opening of the exhaust ductwork 3 Multiple Common Dryer Venting ...

Page 19: ...The dryer must be connected with copper wire only DO NOT use aluminum wire it could create a fire hazard The copper conductor wire cable must be of proper ampacity and insulation in accordance with electric codes for making ALL service connections NOTE TheuseofaluminumwirewillVOIDTHEWARRANTY IMPORTANT Aseparate protected circuit must be provided to each dryer NOTE An individual ground circuit must...

Page 20: ... FUSING CIRCUIT BREAKER Dual Element Time Delay 60 Hz 50 Hz 120 1ø 2 13 0 20 20 208 1ø 2 7 6 15 15 220 1ø 2 7 3 8 6 15 15 230 1ø 2 8 0 15 15 240 1ø 2 7 0 8 0 15 15 208 3ø 3 4 7 15 15 220 3ø 3 4 8 15 15 230 3ø 3 4 7 15 15 240 3ø 3 4 9 15 15 380 3ø 3 2 9 15 15 380 3ø 4 3 1 15 15 400 3ø 4 3 2 15 15 416 3ø 4 3 1 15 15 460 480 3ø 3 2 8 15 15 GAS AND STEAM REVERSING ELECTRICAL SERVICE SPECIFICATIONS PER...

Page 21: ...her insulating connectors they must be jumped out with copper wire sized per local codes and securely clamped to bare metal at both ends IMPORTANT For personal safety and proper operation the dryer must be grounded Provisions are made for ground connection in each dryer at the electrical service connection area 4 Electrical Connections A wiring diagram is located inside the control box for connect...

Page 22: ...ctric oven contactor located inside the assembly at the rear center upper section of the dryer The ground connection is made to a copper lug also provided in this area To gain access remove oven rear service cover 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 and for any sing...

Page 23: ...NTY WARNING FIRE OR EXPLOSION COULD RESULT DUE TO FAILURE OF ISOLATINGOR DISCONNECTINGTHE GAS SUPPLYAS NOTED 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...

Page 24: ...s made for use with L P gas have the gas valve s internal pressure regulator blocked open so that the gas pressure must be regulated upstream of the dryer The pressure measured at each gas valve pressure tap must be a consistent 10 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 exte...

Page 25: ...E Undersizedgassupplypipingcancreatealoworinconsistentpressure whichwillresultin erraticoperationoftheburnerignitionsystem Consistent gas pressure is essential at ALL gas connections It is recommended that a 3 4 inch 19 05 mm pipe gas loop be installed in the supply line servicing a bank of dryers An in line pressure regulator must be installed in the gas supply line header if the natural gas pres...

Page 26: ...oward 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 20 feet 6 meters it should b...

Page 27: ...s 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 connections to crack if they are hard piped to the supply and return mains d Shutoff valves for each dryer should be installed in the supply line return line and drip trap return line This will allow the dryer to be isolat...

Page 28: ...n external supply of compressed air Note this dryer may be provided with an optional steam solenoid valve in which case no steam damper system is provided The air connection is made to the steam damper solenoid valve which is located at the rear inner top area of the dryer just in front of the electric service relay box a Air Requirements There is no compressed air requirement for dryers with the ...

Page 29: ...e illustration below allows the coil to stay constantly charged eliminating repeated expansion and contraction When the damper is opened the air immediately passes through the already hot coil providing instant heat to start the drying process When the damper is closed ambient air is drawn directly into the basket tumbler allowing a rapid cool down Diagram 1 shows the damper in the heating open mo...

Page 30: ...e that it is the same as indicated on the dryer data label In the case of 208 VAC or 240 VAC the supply voltage must match the electric service specifications of the data exactly 3 GAS MODELS Check to ensure that the dryer is connected to the type of heat gas indicated on the dryer data label 4 GAS AND ELECTRIC MODELS The sail switch damper assembly was installed and adjusted at the factory prior ...

Page 31: ...tments have changed in transit or due to marginal location installation conditions 1 Turn on electric power to the dryer 2 Refer to the Operating Instructions for starting your particular model dryer 3 GAS MODELS ONLY a When a gas dryer is first started during initial start up it has a tendency not to ignite on the first ignition attempt This is because the gas supply piping is filled with air so ...

Page 32: ...sail switch 5 Make a complete operational check of ALL operating controls NOTE If computer program changes are required refer to the computer programming section of the manualsuppliedwiththedryer 6 The dryer should be operated through one 1 complete cycle to ensure that no further adjustments are necessary and that ALL components are functioning properly BASKET TUMBLER COATING The basket tumbler i...

Page 33: ...selection is pressed IMPORTANT Formoredetailedinformationregardingthemicroprocessorcontroller computer on your dryer refer to the microprocessor user s manual included with the dryer 2 Mechanical Drop Rotary Coin Meter or Slide Coin Meter a Insert coin and turn knob rotary type meter or for slide meter unit push in coin chute b Select Temperature c Push the Start button d To stop dryer open the ma...

Page 34: ... continue the fan and basket tumbler until the Cool Down Time or temperature is reached IMPORTANT Formoredetailedinformationregardingthemicroprocessorcontroller computer on the dryer refer to the microprocessor user s manual included with the dryer DUAL TIMER DRYERS 1 Turn drying timer knob for a time of 20 minutes 2 Select High Temp 3 Push Push to Start button 4 To stop dryer open the main door S...

Page 35: ...ollowing 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 SHUT OFF external gas supply shutoff valve b STEAM MODELS discontinue the steam supply SHUT OFF external location furnished shutoff valve ...

Page 36: ...t model numberandserialnumbersothatyourinquiryishandledinanexpeditiousmanner B PARTS 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 ...

Page 37: ...r from whom 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 theADC factory for warranty information be sure to have the dryer s model number and serial number available so that your inquiry can be ha...

Page 38: ...re not damaged in transit Damage claims are the responsibility of the shipper IMPORTANT No replacements credits or refunds will be issued for merchandise damaged in transit 5 ALL returns should be shipped to the ADC factory in such a manner that they are insured and a proof of delivery can be obtained by the sender 6 Shipping charges are not the responsibility of ADC ALL returns should be prepaid ...

Page 39: ...t 8 operational running hoursperday IMPORTANT Dryer produces combustible lint and must be exhausted to the outdoors Every 6months 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 performance The lint screen is located in a drawer below the main door Ope...

Page 40: ...crews setscrews grounding connections and nonpermanent gas connections unions shutoff valves and orifices Drive belts should be examined Cracked or seriously frayed belts should be replaced Tighten loose V belts when necessary Complete operational check of controls and valves Complete operational check of ALL safety devices door switches lint drawer switch sail switch and hi limit thermostats C LU...

Page 41: ...r from the dryer pull drawer out approximately halfway Rotate move lint drawer stop hinge refer to the illustration below downward and pull drawer out IMPORTANT After replacing the lint drawer back into the dryer be sure to rotate move hinge back to the upward stop position ...

Page 42: ...yer and the type of heat gas electric or steam 2 SERIALNUMBER Allows the manufacturer to gather information on your particular dryer 3 TYPE OFHEAT This describes the type of heat for your particular dryer gas either natural gas or liquid propane L P gas electric or steam 4 HEAT INPUT for GAS DRYERS This describes the heat input in British thermal units per hour Btu hr 5 ORIFICE SIZE for GAS DRYERS...

Page 43: ... Coin Models 1 Upon completing installation of the replacement microprocessor controller computer board reestablish power to the dryer 2 Start the drying cycle by pressing any temperature selection keys HI MED or LO 3 Verify that the applicable indicator lights on the microprocessor controller computer board are lit Refer to the illustration below ...

Page 44: ...e replacement microprocessor controller computer board reestablish power to the dryer 2 Start the drying cycle by pressing any of the preset cycles in letters A F 3 Verify that the applicable indicator lights on the microprocessor controller computer board are lit Refer to the illustration below ...

Page 45: ...cates normal operation No L E D indicator indicates a power or an internal failure has occurred 3 For Models with DSI Module Type II Theory of Operation Start the drying cycle When the gas burner ignites within the chosen trial for ignition time 8 seconds the flame sensor detects gas burner flame and signals the DSI module to keep the gas valve open as long as there is a call for heat The DSI modu...

Page 46: ...r non coin models the clear stop button on the Phase 7 keyboard touch pad must be pressed to clear the error condition For coin models the pause key must be held down for 3 seconds to clear the fault The open burner hi limit must be reset manually prior to the start of the next cycle B DUAL TIMER This dryer was manufactured with a manual reset burner hi limit thermostat If the burner hi limit is o...

Page 47: ... will jog to move the water throughout the load The microprocessor controller computer will display until the dryer is attended to that the system was activated BEFORE YOU START CHECK LOCAL CODES AND PERMITS Call your local water company or the proper municipal authority for information regarding local codes IMPORTANT ItisyourresponsibilitytohaveALLplumbingconnectionsmadebyaqualified professionalt...

Page 48: ... 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 will be INOPERATIVE IMPORTANT Appliance is to be connected to the water mains using a new hose set and the old hose set should not be reused 2 Water Connections The water connection is made to the 3 4 11 5 NH hose adaptor located at the rear upper midsection of the dry...

Page 49: ...ly 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 three way fitting which has a 3 8 F P T and a coupling must be used to provide the minimum 1 2 supply feed line If the rear area of the dryer or the water supply is located in an area where it will be exposed t...

Page 50: ...ne will activate If set point is below 160 F 71 C the trip point will be 185 F 85 C Once the F S S routine is activated the microprocessor controller computer will display F S S ACTIVATED and water will be injected into the basket tumbler chamber Any time 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 cont...

Page 51: ...WATER DID NOT TURN ON CALL FOR SERVICE THANK YOU NOTE Themicroprocessorcontroller computer willnotlettheusercontinueuntilthevalvetesthas been completed COIN While the microprocessor controller computer is in the program mode Press and hold the PAUSE key for 3 seconds to get into the valve test mode Valve test mode The microprocessor controller computer will display PRESS AND HOLD MEDIUM TO OPEN WA...

Page 52: ...troller computer will continue to monitor the condition for a period of 5 minutes before entering F S S DISABLED mode Once the condition is corrected the microprocessor controller computer will continue to monitor the condition for 1 minute before exiting F S S DISABLED mode WATER NOT CONNECTED This indicates that there is no water pressure at the water valve This will occur if water is not connec...

Page 53: ...____________________________________________________ ___________________________________________________________________________________________________________________________ ___________________________________________________________________________________________________________________________ ___________________________________________________________________________________________________...

Page 54: ...ADC Part No 113226 11 06 14 10 25 ...

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