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Wascom EX 7 ES Operating & Maintenance Manual

Emerald series
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OPERATING & MAINTENANCE MANUAL
WARNING: ALL OPERATING AND MAINTENANCE PROCEDURES SHOWN ON THE NEXT
PAGE OF THIS MANUAL MUST BE FOLLOWED DAILY FOR PROPER OPERATION OF
YOUR WASCOMAT MACHINE.
PLEASE ENTER THE FOLLOWING INFORMATION AS IT APPEARS ON THE MACHINE(S)
DATA PLATE(S).
MACHINE TYPE OR MODEL
MACHINE SERIAL NUMBER(S)
ELECTRICAL CHARACTERISTICS: ________ VOLTS, _______ PHASE, ______ HZ.
MAKE CERTAIN TO KEEP THIS MANUAL IN A SECURE PLACE FOR FUTURE
REFERENCE.
EX 7 ES – EX 10 ES
Emerald Series
471 1562-39/01
94.44

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Summary of Contents for Wascom EX 7 ES

  • Page 1 OPERATING & MAINTENANCE MANUAL EX 7 ES – EX 10 ES Emerald Series 471 1562-39/01 94.44 WARNING: ALL OPERATING AND MAINTENANCE PROCEDURES SHOWN ON THE NEXT PAGE OF THIS MANUAL MUST BE FOLLOWED DAILY FOR PROPER OPERATION OF YOUR WASCOMAT MACHINE.
  • Page 2 NOTICE TO: OWNERS, OPERATORS AND DEALERS OF WASCOMAT MACHINES IMPROPER INSTALLATION AND INADEQUATE MAINTENANCE, POOR HOUSEKEEPING AND WILLFUL NEGLECT OR BYPASSING OF SAFETY DEVICES MAY RESULT IN SERIOUS ACCIDENTS OR INJURY. TO ASSURE THE SAFETY OF CUSTOMERS AND/OR OPERATORS OF YOUR MACHINE, THE FOLLO- WING MAINTENANCE CHECKS MUST BE PERFORMED ON A DAILY BASIS.
  • Page 3 SAFETY AND WARNINGS SIGNS Replace If Missing Or Illegible One or more of these signs must be affixed on each machine as indica- ted, when not included as part of the front instruction panel. LOCATED ON THE OPERATING INSTRUCTION SIGN OF THE MACHINE: PRECAUCION CAUTION 1.

  • Page 4: Table Of Contents

    EX7, EX 10 Contents Introduction ..............1 Technical data ..............2 Installation ................ 5 Safety rules ..............11 Operating instructions ............ 12 Programming..............17 Wash cycles ..............21 Mechanical and electrical design ........30 Maintenance..............47 Trouble-shooting ............48 Service information ............53 The manufacturer reservs the right to make changes to design and material specifications.

  • Page 5: Introduction

    Introduction Introduction The EX 7 and EX 10 Emerald models washer/extractor with high spin Fig. speeds, have been developed to meet the needs of state-of-the-art profes- sional laundromats, institutions, hospitals etc., where high quality auto- matic washing and quick formula variation are required. Emerald models are unique because you can program different prices for the seven wash cycles, giving the customer a real choice and allowing you to maximize revenue by changing what each cycle is worth.

  • Page 6: Technical Data

    Technical data Technical data EX 7 Dry load capacity up to 15 lbs Overall dimensions Width 720 mm 28 11/32 in Depth 660 mm 26 in Height 1100 mm 43 5/16 in Net weight 164 kg 361 lbs 1.64 ± 0.7 kN 390 ±...
  • Page 7 Technical data Technical data EX 10 Dry load capacity up to 25 lbs Overall dimensions Width 720 mm 28 11/32 in Depth 820 mm 32 9/32 in Height 1100 mm 43 5/16 in Net weight 225 kg 495 lbs 2.3 ± 0.9 kN 550 ±...
  • Page 8 Technical data Outline and dimension EX 7 EX 10 inches inches A 1100 43 5/16 1100 43 5/16 B 485 19 3/32 19 3/32 C 440 17 5/16 17 5/16 D 260 10 1/4 10 1/4 Mounting E 720 28 11/32 28 11/32 holes 32 9/32...

  • Page 9: Installation

    Installation Installation The machines are free-standing, i.e. the drum can move relative to the frame of the machine. This results in a considerable reduction in vibra- tion transferred to the frame which in turn 20" simplifies installation: no special foundation is required.
  • Page 10 Installation Mechanical installation The machine is delivered with the drum locked in place by four transport bolts fitted between the frame and the drum. In order to remove these and install the machine, proceed as follows: • Unpack the machine. •...
  • Page 11 Installation Water supply NOTE All plumbing must conform to national and local plumbing codes. Fig. The water supply to the machine should be fitted with manual shut-off valves to facilitate installa- tion and servicing. Water inlets are labelled for hot and cold water Fig.
  • Page 12 Installation Drain connection Connect a 50 mm (2") flexible hose to the Fig. machine’s drain outlet. Avoid sharp bends which may prevent proper draining. The drainage pipe should be located over a floor drain, drainage channel or similar so that the distance between the outlet and the drain is at least 25 mm (1").
  • Page 13 Installation Start-up and safety checklist Before initial start-up of a Wascomat washer- extractor, the following safety checks must be performed: • Make sure that all electrical and plumbing Fig. connections have been made in accordance with applicable local codes. • Use only flexible water fill and drain hoses of the proper length to avoid sags and kinks.
  • Page 14 Installation Function control check-out list In the machine cylinder, you will find the warranty registration card, a copy of the warranty policy and other pertinent material. The warranty card should be completed and sent to Wascomat. All other items should be placed in a safe place for future reference.

  • Page 15: Safety Rules

    Safety Rules Safety rules • This machine is designed for water washing only. • Machines must not be used by children. • All installation operations are to be carried out by qualified personnel. Licensed personnel are necessary for all electric power wiring. •...

  • Page 16: Operating Instructions

    Operating instructions The keypad consists of seven wash program button, two option buttons and Fig. a start button. An Information Display with illuminated symbols shows the selected wash cycle, cycle options, steps in the wash cycle which have been completed (indicated by squares around arrows), steps which remain (indicated by arrows), remaining wash time, and the number of quarters required to start the washer.
  • Page 17 Operating Instructions Operating Instructions Preparations Sort the wash according to the choices shown on the control panel. Check washing tips on gar- ment labels. Make sure all pockets are empty and zips closed. Load the washer and lock the door. Washing 1300 •...
  • Page 18 Operating Instructions Fig. Insert required number of quarters as shown on the display, which counts down quarters as they are inserted. Press START button when the display shows 00. Fig. A clock symbol will now appear and remaining wash time in minutes counts down. (The time for each cycle will not be displayed until the cycle has been run once completely from beginning to end, so the microprocessor knows how long it...
  • Page 19 Operating Instructions Rapid Advance Within 5 minutes after starting (only while the colon : is flashing), steps of the wash cycle can be skipped by using Rapid Advance. • Press and hold down the START button until Fig. the arrows rapid advance. Stop pressing where you want the cycle to continue.
  • Page 20 Operating Instructions Maintenance This machine has been carefully designed to minimize preventative maintenance. However, the following routine service operations should be performed at regular intervals (depending on how much the machine is used). Daily • Clean detergent residue from the door seal and check that the door does not leak.

  • Page 21: Programming

    Programming Coin-operated machines The prices of the various wash cycles must be programmed into the microprocessor. On EMERALD SERIES washers you can program different prices for the seven cycles! You can also program the prices to drop by any percentage between any hours of any days, automatically! Price programming •...
  • Page 22 Programming • Program the price by using the keypad to Fig. enter the number of quarters needed to start the selected wash cycle. For example, press "1" and "2" to enter 12 quarters for a $3.00 vend price. • Release the price programming switch. Price programming of one wash cycle is now complete.
  • Page 23 Programming Wiring for automatic price reduction Emerald washers have a price reduction terminal Fig. block located next to the main power terminal block. Your installer must run a pair of wires from each washer terminal block to Wascomat's automatic price reduction relay box (Part No. 098887), which can control 16 washers.
  • Page 24 Programming • Enter the desired percentage reduction using two numbers (for example, enter 2 and 5 for 25% reduction). If you make a mistake just press the START button (0) to clear the data. Prices will round up to the nearest quarter when price reduction is active.

  • Page 25: Wash Cycles

    Wash Cycles Wash Cycles In the figure below is an overview of the seven wash cycles. Fig. On the following pages you will find a more detailed description of the cycles. WARM COLD PERM PRESS Time Temp. Time Temp. Time Temp.
  • Page 26 Wash Cycles DELICATE QUICK-WASH HEAVY SOIL Time Temp. Time Temp. Time Temp. (Min.) (Min.) (Min.) Prewash Cold Drain Prewash Warm Detergent 1 Drain Mainwash Warm Warm Detergent 2 Drain Extraction Rinse 1 Cold Cold Warm Drain Extraction Rinse 2 Cold Cold Cold Drain...

  • Page 27: Wash Cycles

    Wash Cycles Fig. After the machine has started and the door automatically locked, the drain valve will close and the hot and cold water valves will open to fill the machine with mixed hot and cold water to the level determined by the level control. At the same time detergent from compartment 1 is mixed with Time Temp.
  • Page 28 Wash Cycles Warm On starting the machine, the door will automatic- Fig. ally be locked, and the pre-wash carried out as previously described, whereafter the main wash is started. WARM As the main wash is started, the drain valve closes, detergent is admitted and mixed hot and Time Temp.
  • Page 29 Wash Cycles Cold On starting the machine, the door will automatic- Fig. ally be locked, the drain valve closed, the cold water valve opened and the pre-wash carried out as previously described, whereafter the main wash is started. COLD As the main wash is started, the drain valve Time Temp.
  • Page 30 Wash Cycles Permanent Press On starting the machine, the door will automatic- Fig. ally be locked, the drain valve closed, the hot and cold water valves opened and the pre-wash will be carried out as previously described, where- after the main wash is started. PERM PRESS As the main wash is started, the drain valve Time Temp.
  • Page 31 Wash Cycles Delicate Fig. On starting the machine, the door will automatic- ally be locked. As the main wash is started, the drain valve DELICATE closes, detergent is admitted and mixed hot and cold water is filled to the level determined by the Time Temp.
  • Page 32 Wash Cycles Quick-Wash On starting the machine, the door will automatic- Fig. ally be locked, the drain valve closed. As the main wash is started, the drain valve QUICK-WASH closes, detergent is admitted and warm water is filled to the level determined by the level control. Time Temp.
  • Page 33 Wash Cycles Heavy Soil Fig. On starting the machine, the door will automatic- ally be locked, the drain valve closed, the hot and cold water valves opened and the two pre-wash- HEAVY SOIL es will be carried out as previously described, whereafter the main wash is started.

  • Page 34: Mechanical And Electrical Design

    Mechanical and electrical design General The door, electronic timer with display, and program-selection buttons are located at the front of the machine. The motor and all control and indicating components, i.e. relays, level control, etc are assembled under the top cover, easily accessible from the top of the machine for simplified servicing.
  • Page 35 Mechanical and electrical design Machine construction Panels The machines are equipped with a top panel made of stainless steel. The front panel is available in different colors or in stainless steel. The colored panels are made of phosphatized steel plate. For servicing purposes, the panels can easily be removed.
  • Page 36 Mechanical and electrical design Back gable and bearing Fig. The back gable and the bearing trunnion housing are constructed of a webbed heavy casting for extra rigidity. There are three neoprene seals to protect from filtration of water. The sleeve bearings are water protected. An intermediate safety outlet provides an escapement for any possible con- densation.
  • Page 37 Mechanical and electrical design Description NOTE The door locking mechanism is a safety system that prevents injury by: Do not repair a faulty door lock. • Preventing the machine from starting before Allways replace the old unit the door has been closed and the handle with a new one, to assure prop- secured.
  • Page 38 Mechanical and electrical design Replacement of door lock Fig. 1. Remove the retaining screws securing the front panel and slide the panel downwards until it disengages. Lift it away. 2. Open the door of the machine. 3. Remove the door lock by undoing the two retaining screws and remove the locking plate (1).

  • Page 39: Control Unit

    Mechanical and electrical design Control unit Fig. The timer and program selector are mounted just behind the control panel. Relays and level controls are located at the top of the machine, easily accessible for service. Electrical connections to the machine are made by quick-disconnect plugs. The correct circuit diagram is sent with each mahine.
  • Page 40 Mechanical and electrical design Relays Fig. The EX7ES and EX10ES models employ four relays. The relays control: • wash speed forward • wash speed reverse Wash Distribution action • distribution speed Extraction • extraction speed Construction The body of the relay holding the stationary Fig.

  • Page 41: Drive Motor

    Mechanical and electrical design Drive motor Description Fig. The motor is mounted on top of the outer drum, on stepped feet to provide a means of adjusting Motor the belt tension. The motor drives the drum through a gearbox and centrifugal clutch via a Gears with pulley V-belt.
  • Page 42 Mechanical and electrical design Replacement of clutch shoes. Fig. 1. Slacken the nuts securing the motor and pull the step wedges outwards to slacken the drive belt. Remove the belt. Motor 2. Disconnect the motor cable connector and remove the motor. Retaining screw 3.
  • Page 43 Mechanical and electrical design Checking the motor windings Fig. At room temperature, the motor windings should have the approximate resistances as shown below, when measured between the appropriate connectors in the plug: Motor cable connector Machine Resistance (ohms) between terminals: model 3-4 5-7 8-10 9-10...
  • Page 44 Mechanical and electrical design Water level controls One pressure switch (1) is used to control the Fig. correct water levels during various cycles of the washing program. Adjustment All pressure switches are factory-calibrated to meet specific requirements. The trip level for any one pressure switch can be changed only within narrow limits because each trip range requires a different set of springs.

  • Page 45: Out Of Balance Switch

    Mechanical and electrical design Out of balance switch Description Fig. The purpose of the out-of-balance protection switch is to prevent the machine from being damaged by vibration that could be caused if the washing load was too unevenly distributed in the drum during spinning. The switch consists of a microswitch with an extended operating lever, fitted to the electrical component platform, and a rectangular plate with a cut-out fitted to the outer drum.
  • Page 46 Mechanical and electrical design Inlet valves Construction The valve has a single-inlet with either one, two Fig. or three outlets, each with its own solenoid coil. The body is made of heat-resistant polyamid plastic and the solenoids encased in water-tight plastic.
  • Page 47 Mechanical and electrical design Repair instructions Limescale can block the holes in the valve diaphragm and interfere with the function of the valve. Fig. It is therefore advisable to dismantle and clean the valve at certain regular intervals. The frequency depends on operating conditions and the level of contamination in the water.
  • Page 48 Mechanical and electrical design Soap supply box Fig. The three-compartment soap supply box is located at the top of the machine. Viewed from the front, the compartments marked with figures 1, 2 and 3 are used as follows: Compartment 1 This compartment is used for adding detergent to the wash at the start of the Soak cycle.

  • Page 49: Drain Valve

    Mechanical and electrical design Drain valve Description Fig. The drain valve is a motor-operated membrane valve having a large opening cross-section to produce rapid emptying of the machine. The rapid flow action produces a self-cleaning effect, eliminating the necessity for a fluff filter. The main parts of the valve are: •...
  • Page 50 Mechanical and electrical design Repair instructions Lime deposits or dirt on the membrane can result in the valve not opening or closing correctly. The valve should therefore be cleaned at regular intervals, depending on operating conditions and water quality. Valve does not open or close correctly •...

  • Page 51: Maintenance

    Maintenance Maintenance Preventive maintenance has been reduced to a minimum by the careful design of reliable compo- nents and material. However, the following measures should be taken at regular intervals and in proportion to the hours of service. Daily • Check the door lock and interlock before starting operations.

  • Page 52: Trouble-Shooting

    Trouble shooting Trouble shooting If machine does not start Check to ensure that: • it is turned on at the mains. • the manual shut-off valves are open. 0918 • a program has been selected. • the drum door is locked •...
  • Page 53 Trouble shooting If machine runs slowly on wash speed or there is a slapping or thumping noise. Fig. A Replace V-belts If a metallic noise can be heard at rear of machine Fig. A Tighten pulley on motor shaft 0918 0912...

  • Page 54: Trouble Shooting

    Trouble shooting If there is a leaking around the glass Fig. A Replace door gasket if worn. If water does not enter the machine. Fig. A Be sure manual shut-off valves are in open position. B Check the coils on inlet valves. C Check wires leading to value coils.
  • Page 55 Trouble shooting If water continues to fill without stopping. Fig. A Check hose attached to level control unit. B Check inlet valves for dirt underneath the valve diaphragm. To localize, shut off power. If water continues to flow, inlet valves have foreign material in them and should be thoroughly cleaned.
  • Page 56 Fault-Finding Program Fault-finding Program If there is a power failure the washer will remember the selected cycle for about 8 -10 minutes. The cycle will restart automatically when power is restored. Certain faults are automatically detected and Fig. indicated by a number code shown in the Information Display .

  • Page 57: Service Information

    Built-in service program Built-in service program A service program has been built into the washer. This program should only be used by qualified service personnel. Setting service switch • Remove the washer top cover. Remember that the machine is under power when service program is in use.
  • Page 58 Built-in service program Function checks The program indicator on the display window indicates certain inputs by lighting arrows.. For Fig. example, arrow number 5 is lit when the door closes. This shows that the door's micro switch is operating correctly. The table below shows the inputs displayed by the program indicator.
  • Page 59 Built-in service program It is also possible to directly activate certain functions by using the buttons on the keypad. The chosen function can then be turned on and off using the START button. Arrow 10 (see Fig. 39) simply shows if the function is on or off. This table shows which functions can be activated, along with the number code for each.

This manual is also suitable for:

Ex 10 es

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