Dexter Laundry T-50X2 Service And Parts Data
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Dexter Laundry T-50X2 Service And Parts Data

Industrial opl stack dryer, 50 pound reversing stacked dryer
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Industrial OPL Stack Dryer
50 Pound Reversing Stacked Dryer
Service and Parts Data
8533-099-001 5/20

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  • Page 1 Industrial OPL Stack Dryer 50 Pound Reversing Stacked Dryer Service and Parts Data 8533-099-001 5/20...
  • Page 2 Equipment Safety Warnings Symbols and Terminology Used in this Equipment Indicates an imminently hazardous situation, which if not avoided, will result in death or serious injury. Indicates a potentially hazardous situation, which if not avoided could result in death or serious injury. Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.
  • Page 3 Equipment Safety Warnings Symbols and Terminology Used in this Equipment Warning! Do not operate equipment if door glass is damaged in any way. Warning! Keep clear of rotating parts. Prohibited! Do not enter this equipment or space. Prohibited! Do not step or stand on this equipment. Prohibited! Do not operate without all guards and covers in place.
  • Page 4 Indicates an imminently hazardous situation, which if not avoided, will result in death or seri- ous injury. Indicates a potentially hazardous situation, which if not avoided could result in death or serious injury. Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.
  • Page 5 WARNING • All Dryers must be installed in accordance to all applicable electrical, plumbing and all other local codes. • These installation and operation instructions are for use by qualified personnel only. To avoid injury and electrical shock, do not perform any servicing other than that contained in the installation and op- eration instructions, unless qualified.
  • Page 6 WARNING Children should be supervised to ensure they do not operate or play in or around equipment. Keep all panels in place to protect against electrical shock and injury and add rigidity to washer. This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a...
  • Page 7 Warning! Do not operate equipment if door glass is damaged in any way. Warning! Keep clear of rotating parts. Prohibited! Do not enter this equipment or space. Prohibited! Do not step or stand on this equip- ment. Prohibited! Do not operate without all guards and covers in place.
  • Page 8 Prohibited! Do not attempt to open, touch, or pro- ceed before referring to the manual or unless quali- fied. Mandatory! Read all supporting documentation be- fore operating or maintaining equipment. Mandatory! Disconnect power before servicing equipment. Mandatory! Lock out and tag out before servicing this equipment.
  • Page 9 Notes Part # 8533-099-001 5/20...

  • Page 10: Table Of Contents

    Dexter Safety Guidelines Table of Contents Section 1: WARNING Specifications .......14-17 Section 2: For your safety, the information in this manual must be followed to minimize the risk of fire Installation and Operation or explosion or to prevent property damage, personal injury or loss of life.
  • Page 11 Motor Drive Belt Replacement ....40 Tumbler Pulley Removal/ Installation ..40 Motor and Blower Assembly Removal Section 6: and Installation ......41 50Hz Models Air Flow Switch Operation and Adjustment ........42 Rear View ........78-79 Ignition Transformer Fuse ....42 Gas Valve Assy.........80 Ignition Control Transformer ....42 Electronic Ignition Module ....42 Air Flow Switch Assy.
  • Page 12 Notes Part # 8533-099-001 5/20...

  • Page 13: Specifications

    Section 1: Specifications Part # 8533-099-001 5/20...
  • Page 14 SPECIFICATIONS 50 lb. Commercial Stack Dryer: T-50x2 Reversing Tumbler DC50X2NC-11EC2R (60 Hz), DC50X2NC-39AB2R (50 Hz) Cabinet Height 79 1/4” 2012 mm. (Assumes minimum leveling leg adjustment) Cabinet Width 34 1/2” 876 mm. Overall Depth 56 3/4” 1441 mm. Floor to Bottom of Door- Bottom Dryer 7”...
  • Page 15       Part # 8533-099-001 5/20...
  • Page 16 Part # 8533-099-001 5/20...
  • Page 17 Part # 8533-099-001 5/20...
  • Page 18 Notes Part # 8533-099-001 5/20...

  • Page 19: Installation And Operation

    Section 2: Installation & Operation Part # 8533-099-001 5/20...

  • Page 20: Installation Dimensions

    DRYER INSTALLATION 1. CODE CONFORMITY: All commercial dryer installations must conform with local codes, or in the absence of local codes, with the latest edition of the National Fuel Gas Code ANSI Z223.1. Canadian installations must comply with the current Standard CAN/CGA-B149 (.1 or .2) Installation Code for Gas Burning Appliances or Equipment, and local codes if applicable.

  • Page 21: 3. Make-Up Air

    3. MAKE-UP AIR: Adequate make-up air must be supplied to replace air exhausted by dryers on all types of installations. Refer to specifications for the minimum amount of make-up air opening to outside for each dryer. This is a net requirement of effective area. Screens, grills or lou - vers, which will restrict the flow of air, must be considered.

  • Page 22: Exhaust Installation

    6. EXHAUST INSTALLATION . (Refer to Figure 3) Exhausting of the dryer(s) should be planned and constructed so that no air restrictions occur. Any restriction due to pipe size or type of installation can cause slow drying time, excessive heat, and lint in the room. From an operational standpoint, incorrect or inadequate exhausting can cause a cycling of the high limit thermostat, which shuts off the main burners and results in inefficient drying.
  • Page 23 NOTE: A small diameter duct will restrict airflow; a large diameter duct will reduce air 7. DRYER IGNITION (SOLID STATE IGNITION): The solid-state ignition system lights the main burner gas by spark. velocity - both contributing to lint build up. An inspection door should be provided for The gas is ignited and burns only when the gas-relay (in the electronic controller) calls for heat.

  • Page 24: Description Of Control

                                            ...
  • Page 25 Touch Pad Description Indicator Lights (LED’s) Description Cycle (1 through 5) These L.E.D.s are on solid when a particular cycle is chosen for operation or programming. Gas Valve This L.E.D. is part of the 4-digit numeric display and will be on solid during the drying part of a cycle when the gas valve does not need to be on.
  • Page 26 This touch pad switch will start the operation of a dry cycle if pressed and released once. Pressing and holding this touch pad switch will display the current temperature of the dryer heat sensor Start as long as it is held in the depressed position. Message Description LOAd...

  • Page 27: Operating Instructions

    OPERATING INSTRUCTIONS To dry a load of items, you must choose one of the five-programmed dry cycles. Each of these five dry cycles may be modified in two different ways to match your load. Please, refer to the “Permanent Reversing Dryer Controller Programming” or “Temporary Reversing Dryer Controller Programming” section of this manual.

  • Page 28: Jumper Configuration

    During the dry cycle, either pressing the STOP touch pad switch on the dryer controller or opening the dryer loading door will stop the dry cycle and not clear it. If you press the STOP touch pad switch on the controller and then open the dryer loading door, the dry cycle will not be cleared.

  • Page 29: Temporary Programing

    TEMPORARY REVERSING DRYER CONTROLLER PROGRAMMING Temporary programming mode will allow the change of the stored dry cycle settings in the dryer controller for one complete dry cycle. After the dry cycle is complete, the default settings that existed be- fore the temporary change are restored. The temporary dry cycle can be stopped and cleared at any time during the dry cycle operation.
  • Page 30 Press and release the SELECT/ENTER touch pad switch on the dryer controller. Once the SELECT/ENTER touch pad switch is pressed and released, the dry time L.E.D. will switch off, the dry cycle L.E.D. and programming L.E.D. will remain on, the temperature L.E.D.
  • Page 31 TEMPORARY REVERSING DRYER CONTROLLER PROGRAMMING EXAMPLE REQUIREMENTS: Dry a load with 40 minutes of actual heat at 185°F and five minutes of cool down. The following procedure will show you how to temporarily modify the existing dry cycle 5 program for one cycle of drying.

  • Page 32: Permanent Programing

    PERMANENT REVERSING DRYER CONTROLLER PROGRAMMING The permanent programming mode will allow the change of the stored dry cycle settings in the dryer controller until the operator physically changes them again. The factory default settings can be restored in the dryer controller by pressing the default settings push-button on the back (component) side of the dryer controller circuit board.
  • Page 33 Press and release either the UP or DOWN touch pad switch of the dryer controller to change the drying temperature. Each press and release of either the UP or DOWN touch pad switch will either increase or decrease, respectively, the temperature by five degrees Fahren- heit or three degrees Celsius, depending on how your dryer controller is set up.
  • Page 34 PERMANENT REVERSING DRYER CONTROLLER PROGRAMMING EXAMPLE REQUIREMENTS: Dry a load with 50 minutes of actual heat at 195°F and three minutes of cool down. The following procedure will show you how to permanently modify the existing dry cycle 5 pro- gram for one cycle of drying.
  • Page 35 Press and release the SELECT/ENTER touch pad switch of the dryer controller. Once the SELECT/ENTER touch pad switch is pressed and released, the reversing L.E.D. will switch off, the programming L.E.D. and the dry cycle 5 L.E.D. will remain on, and the flashing “rEv”...
  • Page 36 Notes Part # 8533-099-001 5/20...

  • Page 37: Service Procedures

    Section 3: Service Procedures Part # 8533-099-001 5/20...

  • Page 38: Clothes Door Removal

    Service Procedures Clothes Door Removal 1. The clothes door may be removed from the hinge bracket by unscrewing and removing the allen- head pivot screw located at the door upper hinge point. 2. Next lean the door out of the top of the hinge bracket and lift the door from the bottom hinge pin.

  • Page 39: Pressure Regulator Adjustment

    B. Manual Reset Over Temperature Safety Thermostats- The second hi-limit thermostat is located on the right side of each burner housing as you view from the back of the machine. It is just above the gas valve and covered by a guard with a small access hole. 1.

  • Page 40: Temperature Testing

    Temperature Testing To check the temperature in the dryer tumbler, press and hold the upper or lower start button for the tumbler being checked and while holding the start button also press the temperature button for the temperature to be checked. The display will read out the current temperature. 50Lb Stack Temperature Sensor Removal UPPER - First remove the Electronic Control.

  • Page 41: Motor And Blower Assembly Removal And Installation

    Inverter Drive Motor removal Remove power from the machine by turning off the circuit breaker. Remove Rear Control box cover by removing the one 5/16 screw. Remove rear belt guards. Disconnect Motor wires, T1, T2, and T3 from the inverter drive, and the ground screw from the control box.

  • Page 42: Air Flow Switch Operation And Adjustment

    loctite on the set screws and torque to 165 in/lbs. 6. The Motor is mounted with 4 bolts to the motor mounting bracket on the rear of the dryer. Reassemble in reverse order. Air Flow Switch Operation And Adjustment The air flow switch assembly is part of the ignition safety circuit and insures that the burners don’t operate unless there is air flow.

  • Page 43: Ignition System Function/Sequence

    (yellow wires) is very critical for proper ignition sequence. Ignition System-Function & Sequence During normal dryer operation, the following occurs: 1. The dryer electronic control calls for heat. 2. If the drive motor is running, the motor safety circuit provides power to the electronic control. If the control senses that the heat should be on, a circuit is closed allowing power through the high limit thermostat and air flow switch to the ignition transformer.

  • Page 44: Main Burner Orifice Removal

    1. Disconnect union at gas valve and disconnect wires from gas valve operator coils. 2. Remove right manifold mounting bracket screws and slide manifold to remove from left bracket. Main Burner Orifice Removal 1. Remove manifold and gas valve assembly as above. 2.

  • Page 45: Troubleshooting

    Section 4: Troubleshooting & Wiring Schematics Part # 8533-099-001 5/20...

  • Page 46: Trouble Shooting Fault Codes

    REVERSING DRYER FAULT CODES FAULT # FAULT # FAULT ACTION DESCRIPTION Short in thermostat sensor Dryer stops and “F1” flashes on the 4-digit display. When short circuit circuit on sensor input is removed, “LOAd” appears on the 4-digit display and the remaining dry time is reset. Open thermostat sensor.

  • Page 47: Troubleshooting Tips

    Troubleshooting Tips Symptom Probable Cause Suggested Remedy Tumbler does not turn Drive belts Check both drive belts. Replace if failed. Drive motor Check capacitor and motor. Replace if failed. Door switch Check door switch contacts and adjustment. Adjust or replace the door switch. Electronic Control Is electronic control closing motor relay to...
  • Page 48 Troubleshooting Tips Continued Probable Symptom Suggested Remedy Cause Tumbler turns Glass fuse Check small glass control fuse in back of dryer. but no spark Replace if failed. at burner Temperature The temperature sensor should have between Sensor 30,000 ohms and 60,000 ohms resistance at room temperature if okay.
  • Page 49 Troubleshooting Tips Continued Symptom Probable Cause Suggested Remedy Tumbler turns, Gas supply Make sure gas supply is working. ignition sparks, no flame Gas pressure Make manometer check of gas pressure. Adjust if necessary. Spark Electrode Sensor Check for damage to electrode or mounting.
  • Page 50 Troubleshooting Tips Continued Symptom Probable Cause Suggested Remedy Erratic display Initial Start-up If erratic on initial start-up, leave power on for approximately one hour and check machine operation again. Grounding Machine must be grounded by separate conductor back to neutral bar in breaker box.
  • Page 51 Notes Part # 8533-099-001 5/20...

  • Page 52: Diagram & Schematic

    Wiring Schematic for DN50x2 Reversing Part # 8533-099-001 5/20...
  • Page 53 Wiring Diagram for DN50x2 Reversing   Part # 8533-099-001 5/20...
  • Page 54 Notes Part # 8533-099-001 5/20...
  • Page 55 Section 7: Parts Data 50# Stack Part # 8533-099-001 5/20...
  • Page 56 9, 10 Part # 8533-099-001 5/20...

  • Page 57: Cabinet Group

    Cabinet Group Key Description T-50X2-11 Reversing Door Assy., Loading Complete-Wht 9960-285-008 Door Assy., Loading Complete-SS 9960-285-011 Door Assy., Loading-SS(ring only) 9960-284-002 Door Assy., Loading-Chrome(ring only) 9960-284-004 Plate Assy., Hinge (Wht) 9982-353-002 Plate Assy., Hinge (SS) 9982-353-001 Screw, Hinge to Door...
  • Page 58 Cabinet Group Continued Key Description T-50X2-11 Reversing Escutcheon, Upper 9994-050-001 Trim, Overlay-Upper Black 9435-044-001 Escutcheon, Lower 9994-051-001 Trim, Overlay-Lower Black 9435-031-001 Screw, #4-40 x 3/16 9545-020-009 Nameplate Stack Dryer Express Black 9412-167-001 Lint Drawer Assembly Black 9866-005-005 Overlay Trim, Lint Drwr-Black...
  • Page 59 Part # 8533-099-001 5/20...

  • Page 60: Door Switch & Hinge Plate

    Door Switch Group Key Description T-50X2-11 Reversing Door Switches 9539-487-001 Hinge Plate Cover Key Description T-50X2-11 Reversing Cover-Hinge, Black 9074-340-002 Screw-TRHDCR, 10B x 3/8, Black 9545-008-010 Part # 8533-099-001 5/20...
  • Page 61 Notes Part # 8533-099-001 5/20...

  • Page 62: Opl Control

    OPL Control Board Key Description T-50X2-11 Reversing Control Assembly (Black) 9857-187-004 PCB Control Board 9471-017-001 PCB Display Board 9471-018-001 Cable, Upper Control Long 9500-007-001 Cable, Lower Control Short 9500-007-002 Membrane Switch Assembly (Black) 9412-110-001 Fuse, 600ma / 250V 8636-024-001 Harness Main Control OPL Stack Dryer...
  • Page 63 Sensor Assembly, Thermistor Key Description T-50X2-11 Reversing Bracket for Heat Sensor Mounting (Under Basket) w/ sensor 9501-008-002 Bracket Assembly Thermistor 9985-188-001 Gasket spacer 9206-176-000 Grommet 9209-037-002 Screw, 8B x 14 9545-045-005 Sensor-Heat, Thermistor- 10K Ohm 9501-004-004 Screw-Mounting, 10AB x 3/8...

  • Page 64: Burner Housing Group

    Burner Housing Group Key Description T-50X2-11 Reversing Housing Assembly, Burner 9803-230-001 Service Burner Plate Front 9452-730-001 Service Plate baffle Recirculation Chamber Clean Out 9452-850-001 Screw, 10B x 3/8” 9545-008-006 Screw, 10B X 1/4” 9545-008-001 Angle, Burner Support 9003-220-001 Screw, 10B x 3/8”...
  • Page 65 Burner Housing Group Photos Part # 8533-099-001 5/20...

  • Page 66: Rear View

    Rear View Photos Description T-50X2-11 Reversing Pulley, Driven 9908-047-002 Tolerance Ring 9487-234-005 Washer-Flat, 1/2” 8641-581-026 Lock Washer, 1/2” 8641-582-016 Bolt, 1/2”-13 x 1” 1/4” 9545-017-009 Belt, Drive 9040-076-003 Air Flow Switch, Assembly 9801-098-001 Motor-Drive, 2Hp. 9376-319-001 Pulley-Motor, Drive 9453-169-012 Screw-Set, 5/16”-18 x 1/2”...
  • Page 67 Rear View Photos 2, 3, 4 Part # 8533-099-001 5/20...

  • Page 68: Rear Panel & Cover Group

    Rear Panel & Cover Group Key Description T-50 Rear Guard Side Panel (Right) 9208-130-001 Rear Guard Back Panel 9208-089-001 Rear Guard Side Panel Lower Left 9074-370-001 Screw, Guards 9545-008-024 Label - Connection Electrical 8502-649-001 Label Warning & Notice 8502-763-001 Label - Instructions 8502-645-001 Transition Assembly Outlet 9109-113-001...
  • Page 69 Air Flow Switch Assembly Key Description T-50X2-11 Reversing Air Flow switch Assy 9801-098-001 Bracket-Airflow switch 9029-200-001 Shield-Switch 9550-169-003 Switch-Micro 9539-461-009 Nut-Twin, 4-40 8640-401-001 Screw-.625, 4-40 9545-020-001 Actuator-Air Flow Switch 9008-007-001 Pin-Cotter, .09375x.75 9451-169-002 Screw, 10Bx1/4 9545-008-001 Harness Assembly, Overtemp/Airflow 9627-861-001...

  • Page 70: Bearing Housing Group

    Bearing Housing Group Key Description T-50X2-11 Reversing Bearing Housing Complete Assy (Includes bearings 9803-201-001 & Spacer) Housing, Bearing 9241-189-002 Bearing, Ball, Front 9036-159-001 Spacer, Bearing 9538-183-001 Bearing, Ball, Rear 9036-159-003 Screw-Wizlock, 1/2-13x3/4 9545-017-017 Nut, 1/2-13 8640-417-002 Screw, 1/2-13x1 1/2 9545-017-018...

  • Page 71: Tumbler Assembly Group

    Tumbler Group Key Description T-50X2-11 Reversing Tumbler Assy Complete W/Spider (GALV) 9848-154-001 Tumbler Assy (Galvanized) 9848-148-001 New Tumbler, Taller Baffles (Anti-Roping) W/Spider 9848-158-001 New Tumbler, Taller Baffles (Anti-Roping) 9848-157-001 Tumbler Assy Complete W/Spider (SS & Galv front) 9848-154-002 Tumbler Assy (Stainless Galvanized front)

  • Page 72: Control Assembly Group

    Control Assembly Group Key Description T-50X2-11 Reversing Control, Rear 9857-223-002 Bracket, Terminal Block Power 9029-202-001 Strip, Terminal Marker 9558-029-006 Terminal-Block, Power, 4 Pole 9897-035-001 Screw, 10AB x 3/8” 9545-008-024 Harness Assembly-Power Main Fork, Upper 9627-859-005 Harness Assembly-Power Main Fork, Lower 9627-859-006 Wire Assembly-Ground, GRN/YEL, 7”...
  • Page 73 Part # 8533-099-001 5/20...

  • Page 74: Schematic & Diagram

    Wiring Schematic for DN50x2 Reversing Part # 8533-099-001 5/20...
  • Page 75 Wiring Diagram for DN50x2 Reversing IMPORTANT: RETAIN THIS ELECTRICAL DIAGRAM FOR SERVICE. Part # 8533-099-001 5/20...
  • Page 76 Notes Part # 8533-099-001 5/20...
  • Page 77 Section 8: 50Hz. Parts Data 50# Stack Part # 8533-099-001 5/20...

  • Page 78: Rear View

    Rear View Photos Key Description T-50X2-39 Reversing Spacer, Tumbler pulley 9538-047-002 Pulley, Driven 9908-047-002 Tolerance Ring 9487-234-005 Washer-Flat, 1/2” 8641-581-026 Lock Washer, 1/2” 8641-582-016 Bolt, 1/2”-13 x 1” 1/4” 9545-017-009 Belt, Drive 9040-076-003 Air Flow Switch, Assembly 9801-098-002 Motor-Drive, 2Hp.
  • Page 79 Rear View Photos 2, 3, 4 Part # 8533-099-001 5/20...

  • Page 80: Gas Valve Assy

    Electrical Components Key Description T-50X2-39 Reversing Transformer, 200/230-24 VAC, 50/60HZ 8711-004-004 Strip-Marker, Terminal 9558-029-004 Key Description T-50X2-39Reversing Control Assembly, Gas Valve 9857-132-004 Kit-Honeywell VR86, Valve Flange assy 9732-162-001 Orifice, Main Burner, #30 9425-069-002 Part # 8533-099-001 5/20...

  • Page 81: Air Flow Switch Assy

    Air Flow Switch Assembly Key Description T-50X2-39 Reversing Air Flow switch Assy 9801-098-002 Bracket-Airflow switch 9029-200-002 Shield-Switch 9550-169-003 Switch-Micro 9539-461-009 Nut-Twin, 4-40 8640-401-001 Screw-.625, 4-40 9545-020-001 Actuator-Air Flow Switch 9008-007-001 Pin-Cotter, .09375x.75 9451-169-002 Screw, 10Bx1/4 9545-008-001 Harness Assembly, Overtemp/Airflow 9627-861-001...
  • Page 82 Wiring Schematic for DN50x2 Reversing 50Hz. Part # 8533-099-001 5/20...
  • Page 83 Wiring Diagram for DN50x2 Reversing 50Hz. IMPORTANT: RETAIN THIS ELECTRICAL DIAGRAM FOR SERVICE. Part # 8533-099-001 5/20...
  • Page 84 Notes Part # 8533-099-001 5/20...

  • Page 85: Maintenance

    Section 7: Maintenance Part # 8533-099-001 5/20...

  • Page 86: Regular Required Maintenance

    Preventative Maintenance Daily Step 1: Clean the lint screen free of lint and other debris. Use a soft brush and Hot water if necessary. Step 2: Check the lint screen for tears. Replace if necessary. Step 3: Clean lint from the lint screen compartment. Step 4: Inspect felt seal on lint screen assembly, replace if needed.
  • Page 87 Notes Part # 8533-099-001 5/20...
  • Page 88 Notes Part # 8533-099-001 5/20...

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