American Dryer Corp. Phase 7 Gas/Steam AD-464 Installation Manual Download | Manualshive

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American Dryer Corp.

113068 - 10

C. GAS BURNER AND IGNITION SYSTEM

The dryer gas burner system operates on an on/off gas rate sequence to accurately control the basket’s (tumbler’s)
drying temperature. Maximum firing rate is 2,800,000 Btu/hr (705,588 kcal/hr).

Upon a call from heat, the dryer computer sends a 120 volt signal to the burner controller module (BCM), which
initiates and controls the ignition sequences. The BCM ensures that

ALL

the safety switches are closed before

turning on the combustion air burner fan, then checks to ensure that the burner fan air switch has closed. The
pilot gas flame is then established, the flame rod (which sits in this pilot flame) comes in contact with the flame
and signals the BCM. The main motorized gas valves open in sequence and full operational flame is achieved.

The BCM has five (5) light emitting diodes (L.E.D.s) on its cover and two (2) neons on the mounting base for
ease of troubleshooting, as well as dip switches inside for ease of programming.

The BCM controls

ALL

of the gas burner ignition components, except for the motorized gas valve. When the

drying set point temperature is reached, the dryer’s computer closes the top motorized gas valve, shutting off full
flame.

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Summary of Contents for Phase 7 Gas/Steam AD-464

Page 1: ...r 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 essence ni d autr...

Page 2: ...______________________________________________________________ Serial Number s ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ Replacement parts can be obtained from your reseller o...

Page 3: ...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 reproductive ...

Page 4: ...IONSYSTEMISUSED 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 Dryer must be installed in a location environment which the ambient temperature remains between 40 F 4 44 C and 130 F 54 44 C FORYOUR SAFETY DONOTDRYMOPHEADSINTHEDRYER DONOTUSEDRYERINTHEPRESENCEO...

Page 5: ...12 D External Supply Connections 18 E Fresh Air Supply Requirements 21 F Exhaust Requirements 21 G Steam Information 26 H Shutdown Instructions 28 I Compressed Air System 28 J Preoperational Test 29 K Preparation for Operation Start Up 31 L Electrical Requirements 32 SECTION IV COMPONENT SYSTEM DESCRIPTIONS 35 A Basket Tumbler Drive System 35 B MainAir Blower and Heat Reclaimer System 36 C Gas Bur...

Page 6: ... 51 E Air Blower Drive System 51 SECTION VII DATA LABEL LOCATION INFORMATION 52 SECTION VIII SERVICE PARTS INFORMATION 53 A Service 53 B Parts 53 SECTION IX SUPPRESSION SYSTEM 54 Installation 54 Suppression System Theory of Operation 57 System Reset 57 Non Coin Suppression System Check Procedure 57 ...

Page 7: ... 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 when more th...

Page 8: ...r 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 5 Installation and service must be performed by a qualified installer service agency or gas supplier 6 Dryers must be exhausted to the outdoors 7 Although ADC produces a very versatile dryer...

Page 9: ...PERSONALINJURYOR FIRE COULD RESULT 11 This dryer is not to be used in the presence of dry cleaning solvents or fumes 12 Remove articles from the dryer as soon as the drying cycle has been completed WARNING Articlesleftinthedryerafterthedryingandcoolingcycleshavebeencompletedcan create a fire hazard 13 DO NOT operate steam dryers with more than 125 psi 8 61 bar steam pressure Excessive steam pressu...

Page 10: ... 000 cfm 368 12 cmm MAXIMUM EXHAUST BACK PRESSURE 1 25 in WC 3 11 mb EXHAUST DIAMATER 24 60 96 cm COMPRESSED AIR PRESSURE 80 psi 10 psi 5 52 bar 0 69 bar COMPRESSED AIR VOLUME 1 WAY 2 WAY TILT 15 cfh 19 cfh 0 42 cmh 0 54 cmh COMPRESSED AIR CONNECTION NON TILT TILT 3 8 F N P T CABINET REAR TILT HEIGHT 138 1 4 351 16 cm CABINET OPERATING HEIGHT LEVEL 121 307 34 cm CABINET FULL TILT DEPTH 118 299 72 ...

Page 11: ...113068 10 www amdry com 7 B DIMENSIONS GAS AND STEAM ...

Page 12: ...e second a Reassemble Basket tumbler and Basket tumbler Base Section To The Heat Console Section Move both pieces into position by lifting them with cables through the eyebolts located at the top of each of the two 2 sections These pieces may also be moved into place with a forklift truck by lifting the pieces from underneath The basket tumbler and basket tumbler base section weighs about 6 400 po...

Page 13: ...endant Arm Position the control pendant arm to the top front of the heat console section by aligning the clearance holes in the arm with the 1 4 20 tapped holes on the top of the heat console section Use the 1 4 20 x 3 long bolts supplied with the dryer to attach the arm to the console d Reconnect the internal air electric and water connections refer to page 12 through page 17 3 Reassembly Instruc...

Page 14: ...d holes in the cylinder cleaves located at the top of the basket tumbler section Use the four 4 1 1 4 12 x 3 1 2 long bolts supplied with the unit to secure the basket tumbler section to the basket tumbler base section d Reattach The Control Pendant Arm Position the control pendant arm on the top front of the heat console section by aligning the clearance holes in the arm over the 1 4 20 taped hol...

Page 15: ...ce behind the unit for ease of maintenance and tilting The dryer must be leveled for proper operation If shimming is required put 9 1 2 x 9 1 2 24 13 cm x 24 13 cm metal shims under the base feet The dryer must be lagged to the floor IMPORTANT Dryer should be located where a minimum amount of exhaust duct will be necessary 1 The dryer must be installed with a proper exhaust duct connection to the ...

Page 16: ...d number on the tube with the number on the brass fitting After inserting the corresponding tubes into the brass fittings tighten the brass fitting nuts b Rear Tilt Piston Lines This connection is made at the rear of the dryer in the space between the lower heat console section and the basket tumbler base section Insert the 3 8 poly flo tube coming from the basket tumbler base section to the 3 8 b...

Page 17: ...nd the pneumatic panel To connect the 1 4 poly flo tubing into the corresponding needle valves match the number on the line with the number on the needle valve Insert ALL of the tubing two 2 on a 1 door model four 4 on a 2 door model into their corresponding valves Give a moderate pull on ALL of the air lines to make sure that the connections are complete ...

Page 18: ...r tape identifiers together with the four 4 wires already in the junction box Make these connections with wire nuts and PVC electrical tape Replace the cover and the two 2 cover screws that hold down the cover to the junction box b Temperature Probe Base and Basket Tumbler Disconnects The disconnects are located in the lower heat console The temperature probe disconnect is located on the upper she...

Page 19: ...ified hole seal Put the female end of the RTD cable through the hole in the top of the electrical enclosure Connect the male end and the female end of the RTD cable together pull the cable up until the threads of the reducing bushing can be seen through the hole into where the character panel was Next get the 1 inch lock nut on by a few threads slip the modified hole seal under the lock nut holdin...

Page 20: ...bles coming out of it Two 2 of the cables from the junction box have connectors on the end a 5 pin connector and an 11 pin connector Coming out of the pendant should be two 2 cables one 1 with a 5 pin connector and the other with an 11 pin connector Match up the four 4 cables into assigned pairs check keying and connect the male and female connection together ...

Page 21: ...ety panel off the dryer until left drum motor is reconnected refer to Section F Left Drum Motor below f Left Drum Motor There are two 2 different ways that the left drum motor is connected with or without the motor disconnect junction box The junction box is used when the connections to the left motor are made on the back side of the motor nearest to the basket tumbler When connecting the motor br...

Page 22: ... Supply A minimum requirement of 20 cfh 0 57 cmh at 80 psi 5 51 bar of dry clean and regulated compressed air must be supplied to the dryer The compressed air supply must be connected into the 3 8 F P T fitting which is located in the rear corner of the lower heat console section ...

Page 23: ...ntact your reseller or the ADC factory a The gas dryer installation must meet the American National Standard National Fuel Gas Code ANSI Z223 1 LATEST EDITION 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 done by a qualified professional b The dryer and its individual shu...

Page 24: ...lexible couplings at the supply and return connections The dryer vibrates slightly when it runs and the piping connections may crack if they are hard piped to the dryer Install shutoff valves in the supply and return lines An inverted bucket steam trap with an internal check valve is included with the dryer The supply lines should be insulated This will save energy and provide for the safety of th...

Page 25: ...ssive altitude or predominantly low pressure areas The dryer must be installed with provisions for adequate combustion and make up air supply 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 Componentfailureduetodrycleaningsolvent...

Page 26: ...und duct or 460 square inches 2 968 square centimeters square duct the ductwork from the dryer to the outside exhaust outlet for a horizontal run with no more than one 1 elbow must not exceed 30 feet 9 14 meters for gas and steam dryers refer to the illustrations on page 24 For locations with more than one 1 elbow the minimum exhaust size for gas and steam models must use a 28 inch 71 12 cm round ...

Page 27: ...113068 10 www amdry com 23 ...

Page 28: ...24 American Dryer Corp 113068 10 ...

Page 29: ...ase allow at least twice the diameter of the duct between the duct opening and nearest obstruction IMPORTANT DO NOT use screens louvers or caps on the outside opening of the exhaust ductwork NOTE Exhaust back pressure measured by a manometer at the dryer exhaust duct area must be no less than 0 and must not exceed 1 25 inches 3 11 mb of water column W C NOTE When the exhaust ductwork passes throug...

Page 30: ...rn 1 1 4 return line connection e r u s s e r P m a e t S g n i t a r e p O m u m i x a M g i s p 0 5 1 a P k 2 6 8 d a o L l a m r o N t u p n I t a e H p h B 0 6 e t a m i x o r p p A n o i t p m u s n o C r h b l 1 7 0 2 r h g k 9 3 9 3 9 Shaded areas are stated in metric equivalents The minimum operating pressure for optimum results is 100 psig 689 47 kPa 3 Installation Instructions To ensure ...

Page 31: ...n mains if the dryer needs maintenance work e Install an inverted bucket steam trap which will pass 2 700 lb 1224 69 kg at 125 psi 8 61 bar and check valve for each unit at least 12 inches 30 48 cm below steam coil as close to the coil as possible f The supply and return lines should be insulated This will save energy and provide for safety of the operator and maintenance personnel g Water pockets...

Page 32: ...ted throughout the dryer a Filter Regulator assembly and pneumatic control panel 1 Air Pistons The pistons are actuated by solenoid and flow control valves that are under computer control The pneumatic pistons are used to Tilt the dryer for loading and unloading Open and close load and unload doors Operate heat reclaimer Operate the cool down damper and the intake air damper 2 Filter RegulatorAsse...

Page 33: ... dryer will go into a Cool Down Cycle If the STOP CLEAR key is pressed again at this point the cycle that was in progress will be canceled and returned to the READY state If the temperature is below the Cool Down set point the cycle that was in progress will be canceled and go intoWrinkle Guard Cycle 7 When the programmed drying time has expired the Phase 7 non coin microprocessor controller compu...

Page 34: ... of the power supply connections made to the dryer IMPORTANT Dryer blower motor and impellor fan shaft as viewed from the left side of the dryer mustturninthecounterclockwise CCW direction otherwisethedryerefficiencywill be drasticallyreduced andprematurecomponentfailurecanresult 11 Heat Circuit Operational Test a Gas Models 1 When the dryer is first started during initial start up the burners hav...

Page 35: ...e 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 4 Each dryer should be operated through one 1 complete cycle to assure that no further adjustments are necessary and that ALL components are functioning properly 5 Microprocessor controller computer programs selections a Each mic...

Page 36: ...nd competent electrician to assure that the electrical installation is adequate and conforms to local and state regulations or codes In the absence of such codes ALL electrical connections materials and workmanship must conform to the applicable requirements of the National Electrical Code ANSI NFPA NO 70 LATEST EDITION or in Canada the Canadian Electrical Codes Parts 1 2 CSAC22 1 1990 or LATEST E...

Page 37: ...RVICE APPROX AMP DRAW CIRCUIT BREAKER 60 Hz 50 Hz 208 3ø 3 4 111 150 220 3ø 3 107 150 240 3ø 3 105 150 230 3ø 3 113 150 380 3ø 3 4 62 80 400 3ø 3 4 59 80 416 3ø 3 4 61 80 460 3ø 3 56 70 480 3ø 3 56 70 1 Electrical Service Specifications Gas 5 22 12 IMPORTANT The dryer must be connected to the electric supply shown on the data label which is located in the right hand side of the main electrical enc...

Page 38: ...ASE WIRE SERVICE APPROX AMP DRAW CIRCUIT BREAKER 60 Hz 50 Hz 208 3ø 3 4 106 150 240 3ø 3 100 150 230 3ø 3 107 150 380 3ø 3 4 60 80 400 3ø 3 4 57 80 416 3ø 3 4 58 80 460 3ø 3 53 70 480 3ø 3 53 70 2 Electrical Service Specifications Steam 5 22 12 IMPORTANT The dryer must be connected to the electric supply shown on the data label which is located in the right hand side of the main electrical enclosu...

Page 39: ...bolts are tightened the taper lock contracts onto the shaft and expands into the drive wheel hub locking the wheel onto the shaft The idler shaft and drive shaft are each supported by two 2 2 inch 5 08 cm diameter pillow block bearings These bearings sit on slotted support channels and can be moved inward or outward by the adjustment bolts to raise or lower the basket tumbler The drive system cons...

Page 40: ...AND HEAT RECLAIMER SYSTEM The fan which moves the exhaust air through the dryer is a 22 inch 55 88 cm diameter squirrel cage wheel that is driven at 1 100 RPM by a 25 hp 18 6 kW motor This fan moves a maximum of 13 000 cfm 368 cmm air through the dryer ...

Page 41: ...et The damper remains open for the rest of the drying cycle On cool down the damper closes exhausting ALL of the 13 000 cfm 368 2 cmm which ensures a fast cool down of the LOAD HEAT RECLAIMER SETTINGS Z 1 5 8 4 13 cm Y Z X Y HR Inches Reclaimed 1 1 8 2 86 cm 1 2 1 27 cm 7 46 1 1 4 3 17 cm 2 5 8 6 67 cm 1 2 54 cm 15 67 2 5 8 6 67 cm 3 1 8 8 cm 1 1 2 3 81 cm 25 37 4 1 4 10 8 cm 3 5 8 9 21 cm 2 5 08 ...

Page 42: ...burner fan then checks to ensure that the burner fan air switch has closed The pilot gas flame is then established the flame rod which sits in this pilot flame comes in contact with the flame and signals the BCM The main motorized gas valves open in sequence and full operational flame is achieved The BCM has five 5 light emitting diodes L E D s on its cover and two 2 neons on the mounting base for...

Page 43: ...ecycle the ignition sequence once during each drying cycle after a burner fan air switch or main flame failure but only if the failure occurs more than 35 seconds after ignition If this switch is OFF the burner will lock out at once Switch 2 Intermittent Pilot This switch is ON for intermittent pilot or OFF for interrupted pilot ADC utilizes intermittent pilot so that the pilot flame stays lit dur...

Page 44: ...ip switches are in the off position Flame is detected out of sequence Inductance H is detected on sensor wires Wiring fault on terminal 3 terminal 4 and terminal 5 Internal controller failure Air switch closed before start up e Flame Signal L E D is lit when The flame rod is in contact with the pilot flame and the BCM converts a microampere µA current between the flame rod and ground into a 3 volt...

Page 45: ...rst the spark plug is energized when the pilot solenoid valve opens igniting the pilot flame The flame rod sits in the pilot flame and sends a 3 volt DC to 11 volt DC signal to the BCM when it is in contact with the pilot flame The pilot flame should be about the size of a tennis ball and should heat the flame rod so it is red hot 4 Burner Fan System The burner fan provides additional combustion a...

Page 46: ...with an electric switch When the air blower comes on it draws air through the lint drawers This creates a negative pressure inside the dryer This negative pressure pulls in the sail switches If the sail switches DO NOT pull in this will prevent the heat circuit from energizing and the computer will display a sail switch fault 5 Pilot Gas Supply Line a The pilot gas supply line consists of a manual...

Page 47: ...s receiving a signal from the flame rod proving that the pilot flame is established b Top Motorized Gas Valve The valve sets the gas rate of 2 800 000 Btu hr 705 588 kcal hr To achieve this rate the pressure must be set for 2 5 inches 6 22 mb of water column W C for natural gas and 1 25 inches 3 1 mb of water column W C for L P gas To adjust loosen the pan head screw located on the front of the to...

Page 48: ...nds after the pilot flame is detected If the pilot flame should fail during the 10 second period that the pilot solenoid is open the BCM will reenergize the spark If the pilot flame is not established at the end of this 10 second period the system will lock out and the FLAME FAILURE L E D will light The 10 second period when the pilot solenoid opens and a spark is produced is called the trial for ...

Page 49: ...ill freeze the ignition sequence when the pilot flame ignites This allows time to examine the pilot flame and measure the flame rod signal to the BCM b Connect a pressure gauge or water tube to the pilot gas pressure tap Start the dryer Follow the ignition process by referring to the Sequence of Operation section of this manual c When the pilot flame is ignited the pilot gas pressure should measur...

Page 50: ...ctrical service cables to the dryer using the pre punched knockouts at the bottom section of the electrical cabinet right wall Connect the ground wires directly to the ground lug located at the same approximate area Before turning power on to the dryer measure the supply voltage to ensure that it matches the dryer s specified input voltage This input voltage is marked on the aluminum data plate lo...

Page 51: ...Tumbler Hi Limit Fault The manual reset hi limit safety must be manually reset and the Phase 7 computer must be reset 4 Burner Box Hi Limit Safety Thermostats for Gas Dryers Only These disk temperature switches have a setting of 330 F 166 C They are located on the burner hi limit bracket mounted through the top of the heat console They are an automatic reset type of switch These switches ensure th...

Page 52: ...turn line shutoff valves 3 A compressed air supply of 80 psi 5 51 bar must be connected into the dryer s fitting located at the rear corner of the lower heat console section 4 The dryer exhaust duct must be vented to the outdoors 5 The dryer must be lagged to the floor and leveled for proper operation 6 A fresh air supply from the outdoors of 13 000 cfm 368 cmm must be available to the dryer 7 ALL...

Page 53: ...rage usage which is considered six 6 to eight 8 operational running hoursaday IMPORTANT Dryer produces combustible lint and must be exhausted to the outdoors Every 6 months inspecttheexhaustductingandremoveanylintbuildup CLEANING SCHEDULE EVERY THIRD OR FOURTH LOAD Clean the lint basket A clogged lint basket will cause poor dryer performance The lint basket is located in the lint drawer in the bas...

Page 54: ...ucer Replace with 1 4 liters of Mobil oil DTE HH5G I S O viscosity grade 460 or its equivalent Check fan impellor and drive motor V belts for tightness and wear Retighten and replace if required STEAM MODELS Clean the steam coil fins We suggest using compressed air and a vacuum cleaner with brush attachment NOTE When cleaning steam coil fins be careful not to bend the fins If fins are bent straigh...

Page 55: ...GI Grade 2 multipurpose industrial grease with a lithium thickener and mineral base oil EVERY 3 MONTHS The four 4 bearings that support the drive and idler shafts must be lubricated Use Shell Alvania 2 grease or its equivalent Generically this grease would be described as an NLGI Grade 2 multipurpose industrial grease with a lithium thickener and mineral base oil D BASKET TUMBLER The basket tumble...

Page 56: ... of dryer and type of heat gas electric or steam 2 SERIAL NUMBER Allows the manufacturer to gather information on your particular dryer 3 TYPE OF HEAT This describes the type of heat for your particular dryer gas either natural gas or 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 or kilowatts kW 5 ORIFICE SIZE For Gas D...

Page 57: ...del numberandserialnumbersothatyourinquiryishandledinanexpeditiousmanner 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 1 508 678 9000 ...

Page 58: ... regulations or codes IMPORTANT It is the installation or owners responsibility to see that the necessary or required water water pressure pipe size or connections are provided Manufacturer assumes noresponsibilityifthesuppressionsystemisnotconnected installed ormaintained properly WARNING Water must be supplied to suppression system or dryer will not operate INSTALLATION 1 Requirements The water ...

Page 59: ...ied to suppression system or dryer will not operate IMPORTANT Flexiblesupplyline couplingmustbeused Solenoidvalvefailureduetohard plumbing connections willVOIDTHEWARRANTY It is recommended that a filterorstrainerbeinstalledinthewatersupplyline Typical water supply OPTIONAL MANUAL BYPASS Provisions are made in the dryer suppression system for the installation of an optional manual bypass Depending ...

Page 60: ...e freezes the suppression 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 3 Electrical Requirements No independent external power source or supply connection is necessary The 24 volt power to operate the suppression system is accomplished internally in the dryer from the dryer controls WAR...

Page 61: ... above trip point if so water will remain on The control will continue to check if temperature is above trip point every 30 seconds If the water has been on for a constant 10 minutes the water will be turned off regardless of the temperature If the temperature has dropped below trip point the control will turn off the water prior to 10 minutes SYSTEM RESET After the microprocessor determines that ...

Page 62: ...ADC Part No 113068 10 05 22 12 ...

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