American Dryer Corp. AD-50V Installation & Operator'S Manual Download Page 35 | Manualshive

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4. Steam Damper System Operation

The steam damper, as shown in the illustration below, allows the coil to stay constantly charged eliminating
repeated expansion and contraction. When the damper is opened, the air immediately passes through the
already hot coil, providing instant heat to start the drying process. When the damper is closed, ambient air is
drawn directly into the basket (tumbler), allowing a rapid cool down.

Diagram 1

shows the damper in the heating (open) mode, allowing heat into the basket (tumbler).

Diagram 2

shows the damper in the cool down (closed) mode, pulling ambient air directly into the basket
(tumbler) without passing through the coils.

NOTE

: With the dryer off or with no air supply, the steam damper is in cool down mode as shown in

Diagram 2.

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Summary of Contents for AD-50V

Page 1: ...u 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 AVERTISSEMENT Assurez vous de bien suivre 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...

Page 2: ...roducts embody advanced concepts in engineering design and safety If this product is prop erly maintained it will provide many years of safe efficient and trouble free operation ONLY qualified technicians should service this equipment OBSERVEALL SAFETY PRECAUTIONS displayed on the equipment or specified in the installation operator s manual included with the dryer The following FORYOURSAFETY cauti...

Page 3: ...RVISED IF NEAR DRYER S IN OPERATION WARNING DRYER S SHOULD NEVER BE LEFT UNATTENDED WHILE IN OPERATION CAUTION FOR YOUR SAFETY DO NOT DRY MOP HEADS IN THE DRYER DO NOT USE DRYER IN THE PRESENCE OF DRY CLEANING FUMES WARNING UNDER NO CIRCUMSTANCES should the door switch or the heat circuit devices ever be disabled Caution Label all wires prior to disconnection when servicing controls Wiring errors ...

Page 4: ...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 The wiring diagram for the dryer is located in the front electrical control box area DRYER MUST NEVER BE OPERATED WITHOUT THE LINT FILTER SCREEN IN PLACE EVEN IF AN EXTERNAL LINT COLLECTION SYSTEM IS USED WA...

Page 5: ...C Dryer Enclosure Requirements 10 D Fresh Air Supply Requirements 11 E Exhaust Requirements 12 F Electrical Information 18 G Gas Information 24 H Steam Information 28 I Preparation For Operation Start Up 33 J Preoperational Tests 34 K Preoperational Instructions 35 L Shut Down Instructions 38 SECTION IV SERVICE PARTS INFORMATION 39 A Service 39 B Parts 39 SECTION V WARRANTY INFORMATION 40 A Return...

Page 6: ... D Lint Drawer Removal 44 SECTION VII TROUBLESHOOTING 45 Microprocessor Computer Models 45 Dual Timer Models 52 SECTION VIII DATA LABEL LOCATION INFORMATION 55 SECTION IX REVERSING TIMER SPIN DWELL ADJUSTMENTS 57 SECTION X PROCEDURE FOR FUNCTIONAL CHECK OF REPLACEMENT COMPONENTS 58 ...

Page 7: ...epted but the 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 whe...

Page 8: ...t any appliance b DO NOT touch any electrical switch c DO NOT use any phone in your building d Clear the room building or area of ALL occupants e IMMEDIATELY call your gas supplier from a neighbor s phone Follow the gas supplier s instructions f If you cannot reach your gas supplier call the fire department 4 Installation and service must be performed by a qualified installer service agency or gas...

Page 9: ...ELECTRIC CODE ANSI NFPA NO 70 LATEST EDITION or in Canada the CANADIAN ELECTRICAL CODES PARTS 1 2 CSA C22 1 1990 or LATEST EDITION NOTE Failure to do so will VOID THE WARRANTY 9 UNDER NO CIRCUMSTANCES should the dryer door switches lint drawer switch or heat safety circuit ever be disabled WARNING PERSONAL INJURY or FIRE COULD RESULT 10 This dryer is not to be used in the presence of dry cleaning ...

Page 10: ...3 cu ft 518 cu m DRYERS PER 20 40 CONTAINER 10 20 DRYERS PER 45 48 TRUCK 24 26 VOLTAGE AVAILABLE 120 460v 1ø 3ø 3 4w 50 60 Hz APPROX WEIGHT UNCRATED 651 lbs 295 3 kg APPROX WEIGHT CRATED 700 lbs 317 7 kg HEAT INPUT 150 000 btuh 37 800 kcal hr AIRFLOW 750 cfm 21cmm INLET PIPE CONNECTION 1 2 F P T OVEN SIZE KW BTUH 60 HZ KCAL HR 50 Hz 20 68 280 17 200 24 81 960 20 650 25 N A 21 510 30 102 450 25 810...

Page 11: ...7 Specifications EURO 24 NOTE ADC reserves the right to make changes in specifications at any time without notice or obligation ...

Page 12: ...cause it will be needed throughout various phases in the installation of the dryer The dryer can be moved to its final location while still attached to the skid or with the skid removed To un skid the dryer locate and remove the four 4 bolts securing the base of the dryer to the wooden skid Two 2 are at the rear base remove the back panel for access and two 2 are located in the bottom of the lint ...

Page 13: ...mbustible locations 4 Provisions for adequate air supply must be provided as noted in this manual refer to Fresh Air Supply in Section D 5 Clearance provisions must be made from combustible construction as noted in this manual refer to Dryer Enclosure Requirements in Section C 6 Provisions must be made for adequate clearances for servicing and for operation as noted in this manual refer to Dryer E...

Page 14: ...tions are important for proper and efficient operation Dryers may be positioned side wall to side wall However a 1 16 0 16 cm minimum allowancemust be made for opening and closing of the control door It is suggested that the dryer be positioned about two 2 feet 0 61 meters away from the nearest obstruction for ease of installation maintenance and service to be measured from the back guard Refer to...

Page 15: ...manner that the make up air is distributed equally to the dryers EXAMPLE For a bank of eight 8 dryers two 2 unrestricted openings measuring 2 feet 0 61 meters by 3 feet 0 91 meters 6 square feet or 0 56 square meters is acceptable IMPORTANT Makeup air openings should not be located in an area directly near where exhaust vents exit the building Allowances must be made for remote or constricting pas...

Page 16: ...uld overlap the duct to which it is connected ALL duct work joints must be taped to prevent moisture and lint from escaping into the building Additionally inspection doors should be installed at strategic points in the exhaust duct work for periodic inspection and cleaning IMPORTANT When connecting duct work to the dryer exhaust duct be sure that when screws are used they do not restrict the opera...

Page 17: ...5 cm must be used HORIZONTAL VENTING When a single 8 inch 20 cm horizontal vent is used the duct work to the outlet cannot exceed 20 feet 6 m refer to Illus A below This calculation of 20 feet 6m compensates or allows for the use of a maximum of only one 1 elbow which is the outside outlet protection Illus A ...

Page 18: ...an only be increased to an extent For extended duct work runs a professional HVAC firm should be consulted for proper venting information VERTICAL VENTING When vertical single 10 inch 25 cm venting is used refer to Illus B below the duct work from the dryer to the outside outlet cannot exceed 40 feet 12 meters refer to Illus B below This calculation compensates for the use of a maximum of three 3 ...

Page 19: ...d be connected to one 1 main common duct with a vertical run NOTE Distance between dryer single ducts being connected to the main common duct must be a minimum of 34 1 4 87 cm dryer width Duct work should be laid out in such a manner where allowances are made at rear area of the dryer for removal of rear service panels or guards The illustrations on page 16 show the minimum cross section area for ...

Page 20: ...16 HORIZONTAL VENTING Illus C VERTICAL VENTING ILLUS D ...

Page 21: ... in the duct work for periodic inspection and cleaning 9 Wherever the duct passes through combustible materials the opening must be 2 inches 5 cm larger all the way around than the duct The duct must be centered within this opening 10 The outside of the duct work must be protected from the weather A 90 elbowmust be used for horizontal run and when vertically through a roof by using a 180 turn to p...

Page 22: ...of proper ampacity and insulation in accordance with electric codes for making service connections NOTE The use of aluminum wire will VOID THE WARRANTY IMPORTANT A separate circuit servicing each dryer must be provided 2 Electrical Service Specifications a Electric Service 1 Gas Models and Steam Models ONLY IMPORTANT The dryer must be connected to the electric supply shown on the data label that i...

Page 23: ...es In the absence of these codes grounding must conform to applicable requirements of the National Electric Code ANSI NFPA NO 70 LATEST EDITION The ground connection may be to a proven earth ground at the location service panel For added personal safety when possible it is suggested that a separate ground wire no 18 minimum be connected from the ground connection of the dryer to a grounded cold wa...

Page 24: ...ocal codes permit power to the dryer can be made by the use of a flexible U L listed power cord or pigtail wire size must conform to rating of dryer or the dryer can be hard wired directly to the service breaker panel In both cases a strain relief must be installed where the wiring enters the dryer ...

Page 25: ... power for the control circuit is done internally to the dryer No single phase 1ø input connection is required on a 3 phase 3ø dryer IMPORTANT A CIRCUIT SERVING EACH DRYER MUST BE PROVIDED b Electric Dryers ONLY 3 Phase 3ø Hookup The electrical input connection is made into the electric oven contactor located at the upper rear of the dryer Input connection wiring must be sized properly to handle t...

Page 26: ...st be grounded A ground lug has been provided for this purpose IMPORTANT A CIRCUIT SERVING EACH DRYER MUST BE PROVIDED The only electrical connections to the dryer are the 3 phase 3ø leads L1 L2 L3 and sometimes Neutral and ground Single phase 1ø power for the control circuit is done by the factory at the contactor relay and no other wiring connections are ...

Page 27: ... will automatically VOID THE WARRANTY NOTE ADC reserves the right to make changes in specifications at any time without notice or obligation EURO 24 GAS EURO 24 STEAM ELECTRICAL SERVICE SPECIFICATIONS PER DRYER IMPORTANT 208 VAC and 230 240 VAC ARE NOT THE SAME When ordering specify NOTES A Fuse ratings are dual element time delay current limiting class RK1 or RK5 ONLY B Circuit breakers are therm...

Page 28: ...arable damage to the gas valve which will VOID THE WARRANTY WARNING FIRE or EXPLOSION COULD RESULT 1 Gas Supply The gas dryer installation must meet the American National Standard National Fuel Gas Code ANSI Z223 1 LATEST EDITION or the CAN CGA B149 installation codes as well as local codes and ordinances and must be done by a qualified professional NOTE Undersized gas piping will result in igniti...

Page 29: ...stent 10 5 inches water column 26 2 mbar There is no regulator or regulation provided in an L P dryer The pressuremust be regulated at the source L P tank or an external regulator must be added to each dryer TYPE OF GAS NATURAL LIQUID PROPANE Manifold Pressure 3 5 inches W C 8 7 mb 10 5 inches W C 26 1 mb Inline Pressure 6 0 12 0 inches W C 14 92 29 9 mb 10 5 inches W C 26 1 mb Shaded areas are st...

Page 30: ...ipe size supply line to the dryer is 1 2 N P T For ease in servicing the gas supply line of each dryer must have its own shut off valve The size of the main gas supply line header will vary depending on the distance this line travels from the gas meter or in the case of L P liquid propane gas the supply tank other gas operated appliances on the same line etc Specific information regarding supply l...

Page 31: ... of each dryer IMPORTANT Pipe joint compounds that resist the action of natural gas and L P gas must be used IMPORTANT Test ALL connections for leaks by brushing on a soapy water solution liquid detergent works well WARNING NEVER TEST FOR LEAKS WITH A FLAME ALL components materials must conform to National Gas Code specifications It is important that gas pressure regulators meet applicable pressur...

Page 32: ...ailure which will VOID THE WARRANTY NOTE The EURO 24 is manufactured with a pneumatic piston damper system which requires an external supply of air 80 PSI 10 PSI or 5 5 bar 0 7 bar 1 Steam Coil PH Level The normal PH level for copper type steam coils must be maintained between a value of 8 5 to 9 5 For steel type steam coils the PH level must be maintained between a value of 9 5 to 10 5 These limi...

Page 33: ...dryer to be isolated from the supply main and the return main if the dryer needs maintenance work e Install an inverted bucket steam trap and check valve at least 12 inches 30 cm below the steam coil as close to the coil as possible 1 A trap with capacity of 430 pounds 195 Kg of condensate per hour at 125 psi 862 KPa is needed for each unit f The supply line and the return line should be insulated...

Page 34: ...ctromechanical Steam Damper Option b Air Connection Air connection to system 1 8 inch N P T c Air Regulation No air regulator or filtration is provided with the dryer External regulation filtration of 80 psi 552 KPa must be provided It is suggested that a regulator filter gauge arrangement be added to the compressed air line just before the dryer connection This is necessary to insure that correct...

Page 35: ...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 mode allowing heat into the basket tumbler Diagram 2 shows the damper in the cool down closed mode pulling ambient air directly into the basket tumbler without passing through the coils NOTE With the dryer off or ...

Page 36: ... Flow Control Operation Adjustment Damper operation was tested and adjusted prior to shipping at 80 psi 552 KPa If damper air adjustment is necessary locate the flow control valve and make the necessary adjustments as noted below ...

Page 37: ... checked to assure that this important safety control is functioning 5 Check bolts nuts screws terminals and fittings for tightness and security 6 GAS MODELS be sure that ALL gas shut off valves are in the open position 7 Check ALL back guard panels and service box covers have been replaced 8 Check the lint drawer to assure that it is closed and secured in place 9 Rotate the basket tumbler drum by...

Page 38: ... three ignition attempts If there is no flame after the third ignition attempt the HSI module will lock out until it is manually reset To reset the HSI Hot Surface Ignition 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 colum...

Page 39: ...s will not only drastically reduce drying efficiency but it can also cause premature component failure K PREOPERATIONAL INSTRUCTIONS COIN MODELS 1 Automatic Mode Microprocessor Computer Models a When turning on power or when no cycle is in progress the L E D light emitting diode display will read FILL and or Amount to Start b Insert coin s Once correct Amount to Start has been inserted the L E D l...

Page 40: ...rying and cooling cycles showing time counting downward IMPORTANT If the door is opened during a cycle both the heat and motor will stop However the microprocessor controller computer will continue to count down in time Continuation of the cycle will resume only after the door has been closed and any other of the three 3 temperature selection buttons is again depressed e Upon completion of drying ...

Page 41: ...ff NOTES 1 If the Anti Wrinkle program is active the L E D light emitting diode display will continue to read donE and the microprocessor controller computer will proceed through the Anti Wrinkle program until the maximum Active Guard Time has expired or until the door is opened whichever comes first The L E D light emitting diode display will read FILL and or Amount to Start 2 If the Anti Wrinkle...

Page 42: ...ection setting changes can be made at any time during the drying cycle by pressing the CLEAR STOP key twice The L E D display will return to READY at which time a new cycle selection can be made b Dual Timer Dryers 1 Turn drying timer knob for a time of 20 minutes 2 Select High Temp 3 Push Push To Start switch 4 To stop dryer open the main door L SHUT DOWN INSTRUCTIONS If the dryer is to be shut d...

Page 43: ...rso that your inquiry is handled in an expeditious manner B PARTS 1 Replacement parts should be purchased from the distributor from whom the ADC equipment was purchased If the distributor cannot be contacted or is unknown contact the ADC Parts Department for a distributor in your area Parts may also be purchased directly from the factory by calling the ADC Parts Department at 508 678 9000 or you m...

Page 44: ...ting the ADC Warranty Department at 508 678 9000 NOTE Whenever contacting the ADC factory for warranty or warranty information be sure to have the dryer s model numberand serial numberavailable so that your inquiry can be handled in an expeditious manner C RETURNING WARRANTY PARTS ALL dryer or parts warranty claims or inquiries should be addressed to the ADC Warranty Parts Department To expedite p...

Page 45: ...l 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 Any C O D or COLLECT returns will not be accepted IMPORTANT No replacements credits or refunds will be issued i...

Page 46: ...r average usage which is considered six 6 to eight 8 operational running hours per day SUGGESTED CLEANING SCHEDULE EVERY THIRD or FOURTH LOAD Clean the lint screen every third or fourth load A clogged lint screen will cause poor dryer performance The lint screen is located 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 ...

Page 47: ... screws bearing set screws non permanent gas connections unions shut off valves orifices and grounding connections Motor and drive belts should be examined Cracked or seriously frayed belts should be replaced Tighten loose V belts when necessary Complete operational check of controls and valves Complete operational check of ALL safety devices door switches lint drawer switch sail switch burner and...

Page 48: ...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 tothe upward stop position ...

Page 49: ... being returned to the factory The information provided should not be misconstrued as a handbook for use by an untrained person making repairs IMPORTANT When replacing blown fuses the replacement must be of the exact rating as the fuse being replaced WARNING ALLSERVICE and TROUBLESHOOTING SHOULD BE PERFORMED BY A QUALIFIED PROFESSIONAL OR SERVICE AGENCY WARNING WHILE MAKING REPAIRS OBSERVE ALL SAF...

Page 50: ...k for obstruction e Failed idler bearings or tumbler bearings E Blower motor not operating does not start 1 Failed blower motor contactor relay 2 Failed arc suppressor A S board for Reversing Models ONLY 3 Failed motor 4 Failed microprocessor controller computer F Blower motor operates okay for a few minutes then stops and will not restart 1 Motor is overheating and tripping out on internal overlo...

Page 51: ...ch out of proper adjustment b Loose connection in the lint drawer switch circiut I Microprocessor computer display reads dSFL 1 Fault in microprocessor heat sensing circuit a Failed microprocessor temperature sensor b Failed microprocessor controller computer c Broken wire or connection somewhere between the microprocessor controller computer and the microprocessor temperature sensor J Microproces...

Page 52: ...ower to dryer wait one 1 minute and reestablish power to dryer If problem is still evident a Failed microprocessor controller computer b Failed keyboard label touchpad assembly N Dryer stops during a cycle and L E D light emitting diode display returns to FILL 1 Fault in microprocessor heat sensor circuit a Loose connection in wires between temperature sensor and microprocessor controller computer...

Page 53: ...dule 5 Failed HSI Hot Surface Ignition ignitor flame probe 6 Failed microprocessor controller computer ELECTRIC MODELS ONLY 1 Fault in sail switch circuit a Sail switch out of adjustment and or failed b Sail switch not closing or fluttering 1 Check blower impellor fan motor and rotation direction 2 Restriction in location exhaust system 2 Failed oven hi limit circuit 3 Tripped lint compartment man...

Page 54: ...or poor flame pattern adjust gas burner air adjustment shutters for GAS MODELS ONLY 6 Lint screen not being cleaned on a regular basis or often enough 7 Extractors washers not performing properly 8 Sail switch is fluttering restriction in exhaust for GAS MODELS ONLY 9 Failed microprocessor controller computer temperature calibration is inaccurate 10 Failed microprocessor temperature sensor calibra...

Page 55: ...Excessive noise and or vibration 1 Dryer not leveled properly 2 Impellor fan blower out of balance a Excessive lint build up on impellor fan blower b Failed impellor fan blower 3 Loose basket tumbler tie rod 4 Basket out of adjustment or adjustment bolts hardware are loose 5 Failed basket tumbler support 6 Loose motor mount 7 Failed idler and or tumbler bearings 8 V belt s either too tight or too ...

Page 56: ... 3 Failed drive motor C Blower motor only not operating 1 Failed impellor fan blower motor contactor relay 2 Failed blower impellor fan motor D Both drive and blower motors not operating indicator light is on 1 Fault with L1 termination at reversing timer for Reversing Models ONLY 2 Failed drying timer E Reversing drive motor operates in one direction only stops and restarts in same direction for ...

Page 57: ... rotation direction 2 Restriction in location exhaust system 2 Tripped burner oven hi limit circuit 3 Tripped lint compartment 225º F 107º C manual reset safety thermostat circuit 4 Failed oven contactor relay 5 Failed heat selector switch STEAM MODELS ONLY 1 Steam damper binding and or stuck 2 Failed lint compartment automatic 225º F 107º C safety thermostat circuit 3 Failed heat selector switch ...

Page 58: ...e low heating value for GAS MODELS ONLY 11 Sail switch is fluttering for GAS and ELECTRIC MODELS ONLY a Restriction in location exhaust system 12 Fault in electric oven element circuit for ELECTRIC MODELS ONLY a Failed element s b Failed oven contactor relay 13 Exceptionally cold humid or low barometric pressure atmosphere 14 Blower impellor fan motor rotation direction is incorrect I Dryer is cyc...

Page 59: ...proper service parts information from American Dryer This information is on the data label located on the inside of the control door When contacting ADC please have the model numberand serial numberavailable SECTION VIII TECHNICAL INFORMATION A DATA LABEL Contact American Dryer Corporation ...

Page 60: ...cular model 4 TYPE OF HEAT The type of heat describes the type heat for your particular dryer gas either natural gas or liquid propane L P or steam 5 HEAT INPUT for GAS DRYERS This describes the heat input in British Thermal Units per Hour BTUH 6 ORIFICE SIZE for GAS DRYERS Gives the number drill size used 7 ELECTRIC SERVICE This describes the electric service for your particular model 8 GAS MANIF...

Page 61: ...n the upper rear 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 Switch Position Number 1 2 3 4 5 Time in Seconds 30 60 90 120 150 DWELL STOP TIME 1 2 3 4 5 Switch Position Number 5 6 8 10 12 Values shown are 1 second ...

Page 62: ...lation of the replacement microprocessor computer board reestablish power to the dryer b Start the drying cycle by pressing any of the preset cycles in letters A thru F c Verify that the motor s and the heat indicator dots in the microprocessor computer L E D light emitting diode display are on Refer to the illustration below ...

Page 63: ...yer must stop and ALL indicator lights on the back side of the microprocessor computer board must go out Refer to illustration above f Try to restart the dryer with the main door open g The microprocessor computer board s L E D light emitting diode display must read DOOR h Close the main door and restart dryer i Functional check of microprocessor computer board is complete ...

Page 64: ...ADC 113105 1 08 03 99 25 2 01 18 00 25 3 07 14 00 20 ...

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