Speed Queen SWTZ21*N Top-Load Parts Diagram

MDC

Topload Washer

Refer to Page 4 for Model Numbers

Programming

Keep These Instructions for Future Reference.

(If this machine changes ownership, this manual must accompany machine.)

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TLW1R

Part No. 200944R8

September 2008

WARNING

Failure to install, maintain, and/or operate this machine according to the manufacturer's instructions may result in conditions which can produce bodily injury and/or property damage.

W030

NOTE: The WARNING and IMPORTANT instructions appearing in this manual are not meant to cover all possible conditions and situations that may occur. It must be understood that common sense, caution, and carefulness are factors which cannot be built into these washers. These factors MUST BE supplied by the person(s) installing, maintaining, or operating the washer.

Always contact the distributor, service agent, or the manufacturer about any problems or conditions you do not understand.

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Table of

Contents

Model Identification ........................................................................... 4

Preliminary Information.................................................................... 5

About the Control ................................................................................. 5

Glossary of Terms................................................................................. 5

Power Failure Recovery ....................................................................... 5

Card Reader Communications.............................................................. 5

MDC Identification............................................................................. 6

SELECT CYCLE Keypads................................................................... 6

START Keypad .................................................................................... 6

Display Identification ......................................................................... 7

Light Emitting Diodes (LEDs) ............................................................. 7

START LED .................................................................................... 7

WASH LED ..................................................................................... 7

RINSE LED ..................................................................................... 7

SPIN LED ........................................................................................ 7

Four 7-Segment Digits..................................................................... 7

Washer Operation .............................................................................. 8

Start Up................................................................................................. 8

Ready Mode.......................................................................................... 8

Opening the Washer Lid....................................................................... 8

Signals................................................................................................... 8

MDC Special Features........................................................................ 9

Programming MDC .............................................................................. 9

Collecting Audit Information ............................................................... 9

Testing Machine and MDC Functions.................................................. 9

Rapid Advance Feature......................................................................... 9

Coin Drop ............................................................................................. 9

Start Pulse Operation............................................................................ 9

Service Door and Coin Vault Openings ............................................... 9

Opening the Service Door (Coin Models Only) ............................... 10

Washers Prepped for Card Reader........................................................ 10

Entering the Manual Mode................................................................ 11

How to Enter the Manual Mode ........................................................... 11

Programming MDC............................................................................ 12

What Can Be Programmed? ................................................................. 12

Programmable Options Available......................................................... 12

1. Vend Price “AtS”......................................................................... 13

2. Coin #1 Amount “dEn1”.............................................................. 14

3. Coin #2 Amount “dEn2”.............................................................. 15

4. Start Pulse Value “PLSE”............................................................ 16

5. Cycle Time “CyCL” .................................................................... 17

6. Configuration Display “CnFg”.................................................... 18

Configuration Programming............................................................ 19

7. Default Cycle “dCyC” ................................................................. 22

Collecting Audit Information ............................................................ 23

means without the expressed written consent of the publisher.

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How to Enter Audit Feature.................................................................. 23

How to Read Audit Data....................................................................... 23

How to Exit Audit Feature When Using Manual Mode....................... 23

Testing Machine and MDC Functions.............................................. 24

How to Enter Testing Feature............................................................... 24

How to Start Tests ................................................................................ 24

How to Exit Testing Feature................................................................. 24

Diagnostic Test Descriptions................................................................ 24

Show Fill Time Test......................................................................... 24

Show Drain Time Test..................................................................... 24

Production Test Cycle........................................................................... 25

To Enter Production Test Cycle....................................................... 25

To Exit Production Test Cycle......................................................... 25

Rapid Advance Feature...................................................................... 27

How to Enter Rapid Advance from Ready Mode................................. 27

How to Enter Rapid Advance During an Active Cycle........................ 27

How to Use Rapid Advance ................................................................. 27

How to Exit Rapid Advance Feature.................................................... 27

Power Fail Recovery........................................................................... 28

Default Washer Settings..................................................................... 29

Default Cycle........................................................................................ 29

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Model Identification

Information in this manual is applicable to these washer models:

BWTT20 SWLT21 HWLX21 SWLY20 HWTR21 SWLY21 HWTT20 SWNBC2 HWTT21 SWTT20 HWTX21 SWTT21 HWTY20 SWTX21 HWTY21 SWTY20 HWTZ20 SWTY21 HWTZ21 SWTZ20

SWLT20 SWTZ21

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Preliminary Information

About the Control

MDC on the commercial washer is a programmable control that lets the owner control machine features by pressing sequences of SELECT CYCLE keypads.

MDC allows the owner to program cycle time, set vend prices, retrieve audit information and run diagnostic tests. Washers shipped from the factory have a programmable default cycle (PERM PRESS/ WARM) built in.

IMPORTANT: In the event of a power failure, MDC will not have to be reprogrammed. It is designed with a memory system that will remember how it was programmed (for up to ten years) until the electrical power is restored.

IMPORTANT: It is extremely important that the washer has a positive ground and that all mechanical and electrical connections to MDC are made before applying power to or operating the washer.

Glossary of Terms

Power Failure Recovery

If power fails during an active cycle, the cycle status is saved in memory. If the European Community (EC) Power Recovery is disabled, control will automatically resume the cycle (washer lid must be closed). If EC Power Recovery is enabled and power is restored in less than two seconds, the washer will automatically resume the cycle (washer lid must be closed). If the length of the power failure is greater than two seconds, the user must press the START keypad to resume the cycle.

Card Reader Communications

Card Models Only

The control will communicate with a third party card reader, available at extra cost from various card reader manufacturers. Contact the card reader manufacturer of your choice for availability and additional information.

The following are a few terms and abbreviations to learn. These are referred to throughout the manual:

Four-Digit Display – This term refers to the window area of the control that displays values.

LED (Light Emitting Diode) – This term refers to the lights on the keypads and status words of the control.

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MDC Identification

SELECT CYCLE Keypads

SELECT CYCLE keypads are used to select the specific washer cycle. These keypads include NORMAL/HOT, NORMAL/WARM, PERM PRESS/ WARM, and DELICATES/COLD. The selection of one of these keypads will light up the corresponding LED. The default cycle is PERM PRESS/WARM as shipped from the factory. The SELECT CYCLE keypads are not active after the first fill cycle of the washer. Pressing the flashing START keypad will confirm selection and cycle will begin.

START Keypad

The START keypad is used to start the washer after the full vend price has been satisfied and the washer lid is closed.

Both the START keypad and the SELECT CYCLE keypads are used in various combinations for programming cycles, retrieving audit information, running diagnostic tests, and other operations described in Entering the Manual Mode.

1 Four 7-Segment Digits 2 Four-Digit Display 3 LED Status Lights 4 SELECT CYCLE Keypads 5 START Keypad 6 LED Light

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Figure 1

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Display Identification

Light Emitting Diodes (LEDs)

LIGHT EMITTING DIODES (LEDs) are used to indicate the chosen cycle status. Refer to LED descriptions below.

START LED

The START keypad LED flashes whenever the washer is not in a cycle, the full vend price has been satisfied, and the washer lid is closed. When the START keypad is pressed, the cycle will begin or resume. The START LED will shut off when the START keypad is pressed.

WASH LED

The WASH LED is lit at the beginning of a wash cycle and will remain lit until the wash cycle is complete.

RINSE LED

The RINSE LED is lit at the beginning of the rinse cycle and will remain lit until the cycle is complete.

SPIN LED

The SPIN LED is lit for all spin cycles.

Four 7-Segment Digits

The 7-SEGMENT DIGITS are used to display the time remaining in a cycle, vend price, error messages and descriptive codes. When displaying the time remaining, the time value is displayed on the right side of the display. When displaying the vend price, the value is displayed on the left side of the display. During diagnostic testing or manual programming of the control, these digits will display descriptive codes and values (as described in Entering the Manual Mode).

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Washer Operation

Start Up

When power is applied to the washer, the control will display its software version as “SXXX” (“XXX” is the version number) for two seconds. If the control was not powered down during a running cycle, it will enter the Ready Mode.

Ready Mode

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Figure 2

In Ready Mode, the PERM PRESS/WARM (default cycle) LED is lit, and the full vend price is displayed as left justified. The user may select a different cycle, if desired. (In card reader machines, if the current cycle has a vend price which differs from the default cycle, the display will be updated to show the new price.) If another cycle is selected, the control will flash the amount needed to satisfy the vend shown on the display. If the vend price is not satisfied within one minute, the washer control will stop flashing the vend price and return to the default cycle. The display will continue to show the remaining vend needed to start a cycle and will credit any vend entered by the user.

Vends may be satisfied by a coin drop, start pulses, or by a third party card reader. If a coin drop is used, the remaining vend price will decrease with each coin entry. If start pulses are used, the remaining vend price will decrease with each received pulse. Once the vend is satisfied, the START LED will begin to flash. If a third party card reader is used, the START LED will begin to flash when a valid cash card is entered into the reader.

When the START keypad is pressed, the washer will start. The START LED will stop flashing and the WASH LED will be lit. The display will change to show the remaining cycle time on the right side of the display. The appropriate LEDs will light while the machine passes through different cycle steps. Any coin entered after the first fill cycle will be added to the total coin counter, but the user will not be able to change cycles.

When a cycle is complete, the Four-Digit Display will show “00” until the lid is opened, a key is pressed, a coin or card is entered, or a start pulse is received. When one of these instances occurs, the Four-Digit Display will revert back to the Ready Mode.

Opening the Washer Lid

Opening the washer lid in a running cycle will automatically stop the cycle, the Four-Digit Display will show “LId”, and the timer will stop. Once the lid is closed, the cycle will resume from the point it was interrupted. If the washer lid is opened in the last three minutes of the cycle, the timer will continue to count down to the end of the cycle. When the timer control reaches 0 minutes, the control will return to the Ready Mode.

Signals

There are three instances when a signal may sound during washer operation. The owner may program the signal to be turned on or off (refer to Programming MDC, option 6). These three instances are listed below:

1. Keypad Depression Signal

The signal will sound for .25 seconds each time a keypad is pressed.

2. Coin Input/Start Pulse Input/Card Insertion Signal

The signal will sound for .25 seconds each time a coin or start pulse is received or a card is entered.

3. Machine Error Signal

The signal will sound for 15 seconds if an error occurs.

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