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Manual Dexter T-450 Express

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  • Dexter T-450 Express - page 1

    8514-226-001 REV A page 1 COMMERCIAL WASHER MODEL T-450 EXPRESS VENDED C-SERIES CONTROL OPERATOR’ S MANUAL INSTALLATION & OPERATION INSTRUCTIONS Please re ad this informat ion and reta in for reference. WARNING - THIS WASHER IS EQUIPPED W ITH DEVICES AND FEA TURES RELATING TO ITS SAFE OPERA TION. TO AVOID INJURY OR ELE CTRICAL SHOCK, DO NOT P ...

  • Dexter T-450 Express - page 2

    8514-226-001 REV A page 2 TABLE OF CONTENTS Page No. Washer Specifications 2 Mounting Dimens ions 3 Installation Instructions 4 Operating Instructions 8 Programming the Washer Control 10 Displayed Washer Faults 24 Servicing and Troublesh ooting 30 Accessories and Contact Information 34 WASHER SPECIFICATIONS MODEL T-450 EXPRESS 30 LB. WASHER CAPACIT ...

  • Dexter T-450 Express - page 3

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  • Dexter T-450 Express - page 4

    8514-226-001 REV A page 4 INSTALLATION INS TRUCTIONS All washers mus t be installed in accordance with all local, state and national building, electrical, plumbing and other codes in effect in the area. WARNING - THESE INSTALLATION AND SERVICING INSTRUCTIONS ARE FOR USE BY QUALIFIED PERSONNE L ONLY. TO AVOID INJURY AND ELECTRICAL SHOCK DO NOT PE RF ...

  • Dexter T-450 Express - page 5

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  • Dexter T-450 Express - page 6

    8514-226-001 REV A page 6 PLUMBING Water supply hoses are fu rnished with each machin e. The threaded connections on the hoses are ¾-11 ½ NHT. Separate hot and cold wat er lines mu st be provided, maintaining 30 psi to 120 psi (207 kPa to 827 kPa) water flow pressure. A 140 F (60C) degree hot water supply is recomme nded for best washing results ...

  • Dexter T-450 Express - page 7

    8514-226-001 REV A page 7 FUSING REQU IREMENTS: SINGLE- and THREE -PHASE 20 8-240V AC MODELS - 15 AMP TIME-DELAY (DUAL ELEMENT) FUSE (or equivalent circui t breaker) CONTROLS TRANS FORMER The controls transformer is located inside the control trough and steps a range of 208 to 240 volts down to 115 v olts. There are two terminals on the controls tr ...

  • Dexter T-450 Express - page 8

    8514-226-001 REV A page 8 OPERATING INSTRUC TIONS - STARTING THE WASHER A. Load the clothes into the cylinder and latch the door securely. Be sure clothing does not get caught between the door gasket and tub front when closing the door. Maximum load is 30 pounds clothes, dry weight. Do not load the washer with more than 30 lbs . B. Select the appro ...

  • Dexter T-450 Express - page 9

    8514-226-001 REV A page 9 EMERGENCY STOP / SAFETY DO OR LOCK This machine is equipped with a Safety Door Lock that locks the door closed from when the cycle is started until the cycle is complete. The door lock prevents openin g the door for up to 3 minutes if the power is in terrupted during the cycle. The Emergency S top button pa uses the washer ...

  • Dexter T-450 Express - page 10

    8514-226-001 REV A page 10 PROGRAMMING THE WASHER CONTROL The washer control can be programmed to prompt the user for alternate vend prices, change washer cycle time s, temperatures and many other options. This can be accomplished in two ways: 1. Manual programming utilizing the “Start”, “Hot”, “Wa rm” and “Cold” buttons 2. USB down ...

  • Dexter T-450 Express - page 11

    8514-226-001 REV A page 11 When manual programming mode is ente red, the “Start”, “Hot”, “Wa rm” and “Cold” buttons perform alternate functions. Button Name Alternate Function in Programming Mode Start Becomes the action to accept the displayed option or the “Enter” key Hot Becomes the action to move UP through displayed options ...

  • Dexter T-450 Express - page 12

    8514-226-001 REV A page 12 Quick Test Option: When the Qui ck Test Option is chosen, the washe r will begin a shortened wash cycle without the displayed vend price bein g met. The purpose of this shortened cycle is to test all major components for proper operation. Error Codes should all function normally duri ng this test. The display will show cu ...

  • Dexter T-450 Express - page 13

    8514-226-001 REV A page 13 Prices Option: This option allows the user to set values for coin acceptor inputs and to set the vend price. It also allows the user to return the values to factory defaults. After changing prices using the “Up” or “Down” buttons, the “Enter” button must be pressed again for the control to store the changes th ...

  • Dexter T-450 Express - page 14

    8514-226-001 REV A page 14 Cycles Option: This option allows the user to set the bath time and spin time for the “Wash” bath. It also allows the user to set bath time, water temperature and spin time for “Rinse” and “Final rinse” baths. (Water temperature for the “Wash” bath is chosen by the cus tomer using the “Hot”, “Warm” ...

  • Dexter T-450 Express - page 15

    8514-226-001 REV A page 15 3. “Delay Spin” is me ant to be used in applications where the amount of drain capacity is limited. In these cases the washe r cannot empty the tub in sufficien t time to allow for a spin cycle to occur. When a time value (other than 0) is programmed for the “Delay Spin” option, the end of each bath will be extend ...

  • Dexter T-450 Express - page 16

    8514-226-001 REV A page 16 Plus Cycle Options: The “Plus Cycle” options allow for the us er to prompt t he customer for varying ve nd prices based on additional wash baths chosen. In general, the user can program the additional wash baths in a similar manner to what w as described in the “Cycle s” Options section. It also allows the user to ...

  • Dexter T-450 Express - page 17

    8514-226-001 REV A page 17 “Final Rinse” bath. If the customer does not mee t the vend price of the “Extra Rinse” feature, the prompt will time out and the “Extra Rinse” bath will not occur. The figure below sh ows the sub menu options for Plus Cy cle Options: ...

  • Dexter T-450 Express - page 18

    8514-226-001 REV A page 18 Settings: The “Settings” options allow for the user to make various programming changes to change how the control operation affects the customer. See bel ow for detailed information on each next leve l option. 1. “Decimal Point”- If the user programs the Decim al Point to “OFF”, contro l display will not show ...

  • Dexter T-450 Express - page 19

    8514-226-001 REV A page 19 press the “Enter” button to move to the minutes. Once the hours and minute are both chosen, the “Enter” button must be hel d down for 3 seconds to confirm that RTC is meant to be reset to the complete entry. 7. “Date”- Similar to “Time”, if a problem occurs and the RTC dat e is not accurate, it can be rese ...

  • Dexter T-450 Express - page 20

    8514-226-001 REV A page 20 Usage Menu: The Usage men u allows for the user to track data ab out machine usage. See bel ow for detailed information on each sub menu option. 1. “Coin Audit”: The coin audit field shows the accumulation of coin pulses that were sent to the control over each of the left and right coin inputs. Note that this is a cou ...

  • Dexter T-450 Express - page 21

    8514-226-001 REV A page 21 The figure below sh ows the sub menu options for U sage: ...

  • Dexter T-450 Express - page 22

    8514-226-001 REV A page 22 Control Menu: The Control menu allows for the us er to observe important technical information for the control. No changes can be made at this menu. See below for detailed information on each sub menu. 1. “Serial Number”: This is the control serial number. 2. “MAC Address”: The MAC Address is a unique iden tifier ...

  • Dexter T-450 Express - page 23

    8514-226-001 REV A page 23 COIN WASHER DEFAU LT CYCLE The following table shows the complete details for the coin washe r default cycle. Bath Bath Cycle Time (min.) Water Temp. Delay Fill Spin Time (min.) Prewash 0 Cold Off 0 Wash 9 Warm Off 0 Extend Wash 0 n/a n/a n/a Rinse 4 Cold Off 1 Final Rinse 5 Cold Off n/a Extra Rinse Spin n/a n/a n/a 0 Ext ...

  • Dexter T-450 Express - page 24

    8514-226-001 REV A page 24 DISPLAYED WASHER FAULTS Displayed Fault Code Description DOOR LOCK ERROR Door Lock Error Condition This error is when the Door Locked signal is not received wit hin one second after the start of the cycle. A fter three a ttempt s to start the washer . Delay Immedia te Action When the error occurs, the Door Lock Motor will ...

  • Dexter T-450 Express - page 25

    8514-226-001 REV A page 25 Condition Invalid washer size jumper (ha rness) configuration. COMM ERROR2 Wrong Washer Size Jumper Configuration Delay Immedia te (after the wrong size jumper configuration is read). W asher size/t ype inputs are read only at power up, before starting a cycle, once every 24 hours, and in factory test m ode. Action Stop t ...

  • Dexter T-450 Express - page 26

    8514-226-001 REV A page 26 COMM ERROR5 VFD Communication Fault Condition This error is a da ta error on com munications betw een the controller and the VF drive Delay Delay time is 12 seconds. Action Stop the machine a nd clear the cycle. Keep the d oor locked until the machine ha s stopped m oving and then unlock the door. Solu tion The CE errors ...

  • Dexter T-450 Express - page 27

    8514-226-001 REV A page 27 Condition This error is when the drive size doe s not match the washer size . DRIVE ERROR1 Washer size/ VFD size mismatch Delay Immedia te. (after the size jumper configuration is read). Wa sher size/type inputs are re ad only at po wer up, before start ing a cycle, once every 24 hours and in factory test mode Action Stop ...

  • Dexter T-450 Express - page 28

    8514-226-001 REV A page 28 DRIVE OV VFD Over- voltage Fault Condition This error is over-voltage on the V F drive Delay Delay time is 35 seconds. Action Stop the machine a nd clear the cycle. Keep the d oor locked until the machine ha s stopped m oving and then unlock the door. Solution Step 1: Measure the supp ly voltage to t he VFD on the L1, L2 ...

  • Dexter T-450 Express - page 29

    8514-226-001 REV A page 29 DRIVE GFI VFD Ground Fault Condition This error is a ground fault interrup tion on the VF drive Delay Delay time is 12 seconds. Action Stop the machine a nd clear the cycle. Keep the d oor locked until the machine ha s stopped m oving and then unlock the door. Solution Check VFD light code before turning off power. Check ...

  • Dexter T-450 Express - page 30

    8514-226-001 REV A page 30 SER VI CIN G AND T RO U BL ESH OO TI NG CAUTION: Label all w ires prior to d isconnection when servicing controls. Wiring er rors can cause improper a nd dangerous ope ration. Ver ify proper operati on after servicing. A T T E N TI O N . L or s d e s o p é ra ti o n s d ' e n tr et i e n d e s c o m ma nd es , é ti ...

  • Dexter T-450 Express - page 31

    8514-226-001 REV A page 31 Door will not open Thermoactuator Check to see if therm oactuator a nd its mechanism are stuck or binding and not allow ing the door lock mot or to open. Check to be sure that the locking thermoactuat or is not receiving 120VAC d uring the last 1 1/2 minute s of the cycle. Also check to see tha t the unlocking thermoactua ...

  • Dexter T-450 Express - page 32

    8514-226-001 REV A page 32 Water does not flush softener compartment. Water V alve Coil Check coil continuity at term inals and repla ce if no continuity. Water Inle t Screens Check water i nlet screens for blockage and clean if necessa ry. Water Check to insure that water is turned on and oper ating. Pressure Switch Check pressure swit ch continui ...

  • Dexter T-450 Express - page 33

    8514-226-001 REV A page 33 IMPORTANT TRANSIENT VOLTAGE SURGE SUPPRESSORS Like most ele ctrical equipment your new machine can be damaged or have its life shortened by voltage surges due to lightning strikes which are n ot covered by factory warranty. Local power distribution problems also can be detrimental to the life of electrical components. We ...

  • Dexter T-450 Express - page 34

    8514-226-001 REV A page 34 ACCESSORIES INSTALLATION: (Furnis hed) QTY. 9990-0 27-011 Hose, Water Supply 2 8641-2 42-000 Washer, Inlet Hose 2 9565-0 03-001 Strainer, Inlet Hose 4 Contact distributor or Dexter Laundry, Inc. if a steel-mounting base is require d. For service and parts information, contact your local Dexter agent. To find your local De ...

Manufacturer Dexter Category Washing Machine

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A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use Dexter T-450 Express by users. Manuals are usually written by a technical writer, but in a language understandable to all users of Dexter T-450 Express.

A complete Dexter manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

1. Preface and tips on how to use the manual Dexter T-450 Express - At the beginning of each manual we should find clues about how to use the guidelines. It should include information about the location of the Contents of the Dexter T-450 Express, FAQ or common problems, i.e. places that are most often searched by users in each manual
2. Contents - index of all tips concerning the Dexter T-450 Express, that we can find in the current document
3. Tips how to use the basic functions of the device Dexter T-450 Express - which should help us in our first steps of using Dexter T-450 Express
4. Troubleshooting - systematic sequence of activities that will help us diagnose and subsequently solve the most important problems with Dexter T-450 Express
5. FAQ - Frequently Asked Questions
6. Contact detailsInformation about where to look for contact to the manufacturer/service of Dexter T-450 Express in a specific country, if it was not possible to solve the problem on our own.

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