American Dryer Corp. AD-670 manual

For replacement parts, contact the reseller from which the dryer was purchased or American Dryer Corporation 88 Currant Road Fall River, MA 02720-4781 Telephone: (508) 678-9000 / Fax: (508) 678-9447 E-mail: techsupport@amdr y .com www.amdr y .com 103100GS/tcosta ADC Part No. 113049 AD-670 Installation Manual Phase 7 / Gas Only WARNING: For your saf[...]

Retain This Manual In A Safe Place For Future Reference American Dryer Corporation products embody advanced concepts in engineering, design, and safety. If this product is properly maintained, it will provide many years of safe, efficient, and trouble-free operation. ONLY qualified technicians should service this equipment. OBSERVE ALL SAFETY PRECA[...]

IMPOR TANT YOU MUST DISCONTINUE AND LOCKOUT THE ELECTRIC SUPPL Y AND THE GAS SUPPL Y BEFORE ANY COVERS, GUARDS, OR DOORS ARE REMOVED OR OPENED T O ALLOW ACCESS FOR CLEANIN G , ADJUSTIN G , INST ALLA TION, OR TESTING OF ANY EQUIPMENT PER OSHA (Occupational Safety and Health Administration) STANDARDS. CHILDREN SHOULD NOT BE ALLOWED TO PL AY ON OR NEA[...]

WARNING IMPOR TANT PLEASE OBSERVE ALL SAFETY PRECAUTIONS displayed on the equipment or specified in the installation manual included with the drye r. Dryers 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 left front electrical control cabinet. DRYER MUST NEV[...]

Table of Contents SECTION I IMPOR TANT INFORM ATION ............................................................................ 3 A. Receiving and Handling ........................................................................................................... 3 B. Safety Precautions .............................................................[...]

SECTION VII DATA LABEL INFORM ATION .......................................................................... 29 A. Data Label ........................................................................................................................... 29 SECTION VIII GAS TRAIN AND BURNER DESCRIPTION AND OPER ATION ................. 31 A. Pilot Gas [...]

3 SECTION I IMPOR T ANT INFORMA TION A. RECEIVING AND HANDLING The dryer is shipped in three (3) pieces with protective stretch wrap, protective cardboard corners, and top covers as a means of preventing damage in transit. Upon delivery, the individual pieces and/or packaging, and wooden skids should be visually inspected for shipping damage. If an[...]

4 B. SAFETY PRECAUTIONS WARNING: For your safet y , the information in this manual must be followed to minimize the risk of fire or explosion or to prevent property damage, personal injur y , or loss of life. WARNING: The dryer must never be operated with any of the safety guards, service panels, or service doors removed or open. PERSONAL INJURY OR[...]

5 WARNING: DO NOT use heat for drying articles that contain plastic, foam, sponge rubber, or similarly textured rubberlike materials. Drying in a heated basket (tumbler) may damage plastics or rubber and may be a fire hazard. 7. A program should be established for the inspection and cleaning of lint in the burner area, exhaust ductwork, and area ar[...]

6 SECTION II SPECIFICA TIONS AND DIMENSIONS A. SPECIFICA TIONS NOTE: ADC reserves the right to make changes in specifications at any time without notice or obligation. Gas Maximum Capacity (Dry Weight) 670 lb 303.9 kg Basket Diameter 78-1/4" 198.8 cm Basket Depth 92" 233.7 cm Basket Volume 256 cu ft 7.25 cu m Blower Motor 2 x 5 hp 2 x 3.7[...]

7 AD-670 1 Door Tilting/2 Door Tilting B. DIMENSIONS NOTE: ADC reserves the right to make changes in specifications at any time without notice or obligation.[...]

8 SECTION III INST ALLA TION PROCEDURES Installation should be performed by competent technicians in accordance with local and state codes. In the absence of these codes, the installation must conform to applicable American National Standards: ANSI Z223.1- LATEST EDITION (National Fuel Gas Code) or ANSI/NFPA NO. 70-L A TEST EDITION (National Electr[...]

9 B. FRESH AIR SUPPL Y 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 efficiency will be adversely affected. Igniti[...]

10 IMPOR TANT: Make-up air must be provided from a source free of dry cleaning solvent fumes. Make-up air that is contaminated by dry cleaning solvent fumes will result in irreparable damage to the motors and other dryer components. NOTE: Component failure due to dry cleaning solvent fumes will VOID THE WARRANTY . C . EXHAUST REQUIREMENTS IMPOR TAN[...]

11 IMPOR TANT: Exhaust back pressure measured by a Magnehelic in the exhaust duct must be no less than 0 and must not exceed 1.0 inch (2.48 mb) of water column ( W .C.). 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 arou[...]

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13 D. ELECTRICAL REQUIREMENTS It is your responsibility to have ALL electrical connections made by a properly licensed and competent electrician to assure that the electrical installation is adequate and conforms to local and state regulations or codes. In the absence of such codes, ALL electrical connections, materials, and workmanship must confor[...]

14 WARNING: 208 VAC AND 240 VAC ARE NOT THE SAME . Any damage done to the dryer components due to improper voltage connections will automatically VOID THE WARRANTY . NOTE: ADC reserves the right to make changes in specifications at any time without notice or obligation. 2. Electrical Connections NOTE: A wiring diagram is included with each dryer an[...]

15 E. GAS REQUIREMENTS It is your responsibility to have ALL plumbing connections made by a qualified professional to assure that the gas plumbing installation is adequate and conforms to local and state regulations or codes. In the absence of such codes, ALL plumbing connections, materials, and workmanship must conform to the applicable requiremen[...]

16 2. Technical Gas Data a. Gas Specifications * Measured at the gas valve pressure tap when the gas valve is on. b. Gas Connections Run a 2-inch gas pipe from the main gas header to the dryer. There is a 2-inch gas pipe connection at the bottom of the dryer base. Inlet Connection ................... 2” F.P.T. BTU/hr input (per dryer) ...... 2,20[...]

17 3. Piping /Connections ALL components/materials must conform to National Fuel Gas Code Specifications ANSI Z223.1-L A TEST EDITION, or in Canada, CAN/CGA-B149.1-M91 (Natural Gas) or CAN/CGA-B149.2-M91 (Liquid Propane [L. P .] Gas) or L A TEST EDITION (for General Installation and Gas Plumbing), as well as local codes and ordinances and must be d[...]

18 Consistent gas pressure is essential at ALL gas connections. It is recommended that a 2-inch (5.08 cm) 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 pressure exceeds 12.0 inches (29.9 mb) of water column ( W .C.) press[...]

19 G . PREOPERA TIONAL TESTS ALL dryers are thoroughly tested and inspected before leaving the factory. However, a preoperational test should be performed before the dryer is publicly used. It is possible that adjustments have changed in transit or due to marginal location (installation) conditions. 1. Turn on electric power to the dryer. 2. Make s[...]

20 NOTE: Mechanical functions of the dryer are not allowed during the ON time. The blower (fan) must be OFF to perform mechanical functions. However the “STOP/CLEAR” key may be pressed at any time to end the Wrinkle Guard cycle. Mechanical functions of the dryer are allowed during the OFF time. NOTE: Dryer can be stopped at any time by opening [...]

21 12. Make a complete operational check of ALL safety-related circuits (i.e., lint drawer, door, and sail switches on gas models). 13 . A reversing basket (tumbler) should never be operated with less than a 442 lb (200 kg) load (dry weight). The size of the load will affect the coast-down and dwell (stop) times. The basket (tumbler) must come to a[...]

22 NOTE: Lint drawer must be ALL the way in place to activate the safety switch otherwise the dryer will not start. 9. Check bolts, nuts, screws, terminals, and fittings for security. 10. Check to ensure air supply (80 PSI [5.51 bars]) is connected to the dryer. I . SHUT DOWN INSTRUCTIONS If the dryer is to be shut down (taken out of service) for a[...]

23 SECTION IV 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 [...]

24 MONTHLY Empty the compressed air filter bowl. Apply high-temperature grease to the four (4) 2-3/16” diameter basket (tumbler) drive shaft pillow block bearings. ( Use Shell Alvania #2 grease or its equivalent .) Retighten setscrews in the collars of the four (4) 2-3/16” diameter basket (tumbler) drive shaft bearings. Clean any lint accumulat[...]

25 B. ADJUSTMENTS 7 DA YS AFTER INST ALLA TION AND EVER Y 6 MONTHS THEREAFTER Inspect bolts, nuts, screws (bearing setscrews), grounding connections, and nonpermanent gas connections (i.e., unions, shutoff valves, and orifices). Fan (impellor) V -belts, along with the motor and drive chains should be examined and replaced if necessary. Tighten loos[...]

26 SECTION V SER VICE/P AR TS INFORMA TION A. SER VICE 1. Service must be performed by a qualified trained technician, service agency, or gas supplier. If service is required, contact the reseller from whom the ADC equipment was purchased. If the reseller cannot be contacted or is unknown, contact the ADC Service Department for a reseller in your a[...]

27 SECTION VI WARRANTY INFORMA TION A. RETURNING W ARRANTY CARDS 1. Before any dryer leaves the ADC factory test area, a warranty card is placed on the back side of the main door glass. These warranty cards are intended to serve the customer where we record the individual installation date and warranty information to better serve you should you fil[...]

28 2. Each part must be tagged with the following information: a. Model number and serial number of the dryer from which part was removed. b. Nature of failure (be specific). c. Date of dryer installation. d. Date of part failure. e. Specify whether the part(s) being returned is for a replacement, a credit, or a refund. NOTE: If a part is marked fo[...]

29 SECTION VII DA T A LABEL INFORMA TION A. DA T A LABEL Contact American Dryer Corporation When contacting American Dryer Corporation certain information is required to insure proper service/parts information from ADC . This information is on the data label that is affixed to the left side of the main electrical cabinet located in the right hand e[...]

30 THE D ATA LABEL 1. MODEL NUMBER The model number is an ADC number, which describes the size of the dryer and the type of heat (gas, electric, or steam). 2. SERIAL NUMBER The serial number allows ADC to gather information on your particular dryer. 3. MANUFACTURING CODE NUMBER The manufacturing code number is a number issued by ADC, which describe[...]

31 SECTION VIII GAS TRAIN AND BURNER DESCRIPTION AND OPERA TION The ADG-670’s atmospheric burner system is responsible for supplying the dryer with it’s heat input. It is a high/low system with a firing rate of 2.2 million BTUs per hour (554,400 kcal/hr) on hi-fire and 450,000 BTUs per hour (113,400 kcal/hr) on lo-fire. This system consists of [...]

32 2. 1/2” N. P .T. Pilot Solenoid V alve – This is an on/off solenoid valve which is used to allow gas to flow through the line when pilot is called for and then discontinues gas when the heat cycle has been completed. There is no adjustment needed to this valve for natural or liquid propane (L. P .) gases. 3. 1/2” N. P .T. Adjustable Orific[...]

33 B. MAIN GAS SUPPL Y LINE The main gas supply line is a 2” N. P .T. line, which feeds the gas required for both high and lo-fire. 1. Main Gas V alve - The main gas valve is a double solenoid gas valve containing two (2) safety shutoff valves in one (1) housing. It is a fast opening, fast close valve and is used to feed both high and lo-fire gas[...]

34 C. LO-FIRE GAS SUPPL Y LINE LOOP The lo-fire gas supply line loop is a 3/4” line, which is responsible for supplying the burner system with the gas required during lo-fire operation. 1. Adjustable Orifice - The adjustable orifice found in the lo-fire gas supply line controls the flow of gas to the burner during lo-fire. a. Adjustable Orifice L[...]

35 SECTION IX COMPONENT SYSTEM DESCRIPTIONS A. BASKET (TUMBLER) DRIVE SYSTEM There are two (2) drive assemblies. Each drive assembly consists of a 5 HP (3.72 kw) drive motor, which is connected to the drive shaft by two (2) “B” section V -belts, driving a shaft-mounted (5.6 to 1 ratio) gear reducer. This produces a basket (tumbler) speed of app[...]

36 B. BASKET (TUMBLER) The basket (tumbler) is made of 14-gauge stainless steel perforated panels, five (5) stainless steel ribs, and two (2) basket (tumbler) rings. The basket (tumbler) ribs are welded at each end to the basket (tumbler) rings. The perforated panels are bolted to the ribs so that they can be removed for cleaning or replaced. C. BL[...]

37 4. Burner Box Hi-Limit Safety Thermostats (for Gas Models Only) These disc temperature switches have a setting of 330º F (166º C). They are located on the right side of each burner box, and they are a manual reset type of switch. These switches ensure that there is proper airflow through the burner box. Upon a low airflow condition, which may [...]

38 SECTION X PHASE 7 OPL SYSTEM DIAGNOSTICS IMPOR TANT: YOU MUST DISCONNECT AND LOCKOUT THE ELECTRIC SUPPL Y AND THE GAS SUPPL Y BEFORE ANY COVERS OR GUARDS ARE REMOVED FROM THE MACHINE T O ALLOW ACCESS FOR CLEANIN G , ADJUSTIN G , INST ALLA TION, OR TESTING OF ANY EQUIPMENT PER OSHA ( Occupational Safety and Health Administration ) ST ANDARDS. ALL[...]

39 CALL FOR SERVICE - Indicates a board failure. FRONT DOOR NOT CLOSED - A front door is open when it should be closed. REAR DOOR NOT CLOSED - A rear door is open when it should be closed. CHECK CONTROL POWER - Indicates control power is off. EXHAUST HIGH TEMP FAULT - Indicates the temperature in the basket (tumbler) is above 225º F (107º C). LIN[...]

40 B. I/O BOARD INPUT AND OUTPUT L.E.D. INDICA T ORS[...]

41 Input/Output (I/O) Board Input Description (“Red” light emitting diode [L.E.D.]) 1. FDRC – (RED L.E.D.) This L.E.D. will indicate the status of the Front Doors. If the doors are closed, then the L.E.D. is ON. 2. FDRO – (RED L.E.D.) This L.E.D. will indicate the status of the Front Doors. If the doors are open, then the L.E.D. is ON. 3. T[...]

42 8. RDRO – (RED L.E.D.) This L.E.D. will indicate the status of the Rear Doors. If the doors are open, then the L.E.D. is ON. 9. FAN – (RED L.E.D.) This L.E.D. will indicate the status of the Blower Fan. If the fan is on, then the L.E.D. is ON. 10. RBHL – (RED L.E.D.) This L.E.D. will indicate the status of the Rear Burner Hi-Limit Disk. If[...]

43 Input/Output (I/O) Board Output Description (“Green” light emitting diode [L.E.D.]) 1. R_HE A T – (GREEN L.E.D.) This L.E.D. will indicate the status of the Rear Heat output. If the request to turn on the Rear Burner is made, then the L.E.D. is ON. 2. ALERT – (GREEN L.E.D.) This L.E.D. will indicate the status of the Horn output. If the [...]

44 16. OCL5 – (GREEN L.E.D.) This L.E.D. will indicate the status of the Open Collector #5 output. If the request to turn on the Open Collector #5 is made, then the L.E.D. is ON. (Programmable and Defaulted to Rear Down.) 17. OCL6 – (GREEN L.E.D.) This L.E.D. will indicate the status of the Open Collector #6 output. If the request to turn on th[...]

45 SECTION XI TROUBLESHOOTING IMPOR TANT: YOU MUST DISCONNECT AND LOCKOUT THE ELECTRIC SUPPL Y AND THE GAS SUPPL Y BEFORE ANY COVERS OR GUARDS ARE REMOVED FROM THE MACHINE T O ALLOW ACCESS FOR CLEANIN G , ADJUSTIN G , INST ALLA TION, OR TESTING OF ANY EQUIPMENT PER OSHA (Occupational Safety and Health Administration) STANDARDS. The information prov[...]

46 NOTE: SPRINKLER MUST H AVE POWER FOR THE DRYER TO OPER A TE. B. Drive motor is not operating ( does not start)... * Microprocessor controller (computer) relay output indicator (either forward “FWD” or reverse “REV”) is on. 1. Blown drive motor contactor overloads. 2. Failed drive motor contactor. 3. Failed drive motor. 4. No 24 VAC prese[...]

47 f. V -belts are too tight. g. Dryer has an oversized load. h. V oltage to the dryer is incorrect...check dryer data label for specified voltage. 2. Failed overload protector... a. Incorrect overload setting. E. Impellor (fan) motor is not operating ( does not start)... * Microprocessor controller (computer) input/output (I/O) board “FAN” rel[...]

48 2. Failed overload protector... a. Incorrect overload setting. 3. Blown drive motor and blower (fan and impellor) motor fuses or overloads. 4. Failed motors (both blower [fan and impellor] motor and drive motor). 5. Failed microprocessor controller (computer). G. Microprocessor controller (computer) display board light emitting diode (L.E.D.) di[...]

49 5. Front or rear doors are opened during cycle. 6. Failed microprocessor controller (computer) input/output (I/O) board. J. Microprocessor controller (computer) light emitting diode (L.E.D.) displays “Lint Drawer Open.” 1. Lint drawer is not closed ALL the way. 2. Lint drawer switch is out of proper adjustment. 3. Failed lint drawer switch. [...]

50 2) Failure in drive motor circuit. b. Faulty rotation sensor. c. Broken wire or connection between rotation sensor and microprocessor controller (computer) display board. d. Failure in rotational sensor circuit, magnet missing, or gap too large. e. Basket (tumbler) rotation below 12 RPMS. P. Microprocessor controller (computer) reads “Exhaust [...]

51 2. Impellor (fan/blower) out of balance... a. Excessive lint buildup on impellor (fan/blower)...check air jet. b. Failed impellor (fan/blower). 3. Loose motor mount. 4. Failed idler bearings or basket (tumbler) bearings. 5. V -belt(s) either too tight or too loose. 6. Basket (tumbler) drive wheels are worn or are loose. 7. Setscrews of basket (t[...]

52 SECTION XII OPTIONAL SPRINKLER SYSTEM COMPONENTS OPTIONAL SPRINKLER CIRCUIT COMPONENTS AUT O “EMERGENCY ST OP” ( E-Stop ) RELA Y This device, located in the front right electrical enclosure, supplies the main control voltage to the dryer. The dryer’s sprinkler circuit supplies or removes 120 VAC to the coil of this relay for the “EMERGEN[...]

53 SPRINKLER AND MAIN POWER CONNECTIONS There are two (2) individual power connections to the dryer that includes the sprinkler system option. 1. Main dryer power (3-phase [3ø]). 2. Dedicated sprinkler system circuit power (single-phase [1ø]). Both of these connections are at the voltage rating of the dryer and can be installed in the front right[...]

54 Sprinkler Option Temperature Controller Settings NOTE: Refer to Controlle r ’s Use r ’s Manual for further information on controller options. Note: When message display (Cy) set to OnOF. SPOL (SET POINT OUTPUT LOW LIMIT) not in use. SPOH (SET POINT OUTPUT HIGH LIMIT) not in use. Are not displayed. Message Display Message Description Settings[...]

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ADC 113049 5 - 09/03/04-0[...]