Page 1
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).
MAKE CERTAIN TO KEEP THIS MANUAL IN A SECURE PLACE FOR FUTURE
REFERENCE.
MACHINE TYPE OR MODEL
MACHINE SERIAL NUMBER(S)
ELECTRICAL CHARACTERISTICS:________ VOLTS, _______ PHASE, ______ HZ.
OPERATING & MAINTENANCE MANUAL
EX 7 ES – EX 10 ES
Emerald Series
471 1562-39/01
94.44
Page 2
NOTICE TO: OWNERS, OPERATORS AND DEALERS OF WASCOMAT MACHINES
II
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 FOLLOWING MAINTENANCE CHECKS MUST BE PERFORMED ON A DAILY BASIS.
1. Prior to operation of the machine, check to make certain that all operating instructions and
warning signs are affixed to the machine and legible. (See the following page of this manual
for description and location of the signs.) Missing or illegible ones must be replaced immediately. Be sure you have spare signs and labels available at all times. These can be obtained from your dealer or Wascomat.
2. Check the door safety interlock, as follows:
(a) OPEN THE DOOR of the machine and attempt to start in the normal manner:
For coin-operated models, insert the proper coins to start the machine.
For manually operated models, place the ON-OFF switch in the ON position and
press the Start switch.
For FL and EX models, insert a program card, turn the starter knob to the Start
position and place the ON-OFF switch in the ON position.
For HI-TEK microprocessor models, turn the key switch to the RUN position, choose
a program and press the START button.
For SELECTA 28 models, select a wash program and press the Start button.
THE MACHINE(S) SHOULD NOT START !
(b) CLOSE THE DOOR to start machine operation and, while it is operating, attempt to
open the door without exerting extreme force on the door handle. The door should
remain locked!
If the machine can start with the door open, or can continue to operate with the door
unlocked, the door interlock is no longer operating properly. The machine must be
placed out of order and the interlock immediately repaired or replaced.(See the door
interlock section of the manual.)
3. DO NOT UNDER ANY CIRCUMSTANCES ATTEMPT TO BYPASS OR REWIRE ANY OF
THE MACHINE SAFETY DEVICES AS THIS CAN RESULT IN SERIOUS ACCIDENTS.
4. Be sure to keep the machine(s) in proper working order: Follow all maintenance and
safety procedures. Further information regarding machine safety, service and parts can be
obtained from your dealer or from Wascomat through its Teletech Service Telephone - 516/
371-0700.
All requests for assistance must include the model, serial number and electrical characteristics as
they appear on the machine identification plate. Insert this information in the space provided on the
previous page of this manual.
5. WARNING: DO NOT OPERATE MACHINE(S) WITH SAFETY DEVICES BYPASSED, REWIRED OR
INOPERATIVE! DO NOT OPEN MACHINE DOOR UNTIL DRUM HAS STOPPED ROTATING!
Page 3
CAUTION
1. Do not open washer door until cycle is completed, operating
light is off, and wash cylinder has stopped rotating.
2. Do not tamper with the door safety switch or door lock.
3. Do not attempt to open door or place hands into washer to
remove or add clothes during operation. This can cause
serious injury.
MACHINE SHOULD NOT BE USED BY CHILDREN
PRECAUCION
1. No abra la puerta de la máquina lavadora sino hasta que la
máquina haya terminado su ciclo, la luz operativa esté apaga
da y el cilindro de lavado haya completamento terminado de
girar.
2. No interferia o manipule el switch o la cerradura de la puerta.
3. No trate de abrir la puerta o meta las manos dentro de la
máquina para meter o sacar ropa mientras la máquina está
en operación, pues puede resultar seriamento herido.
LAS MÁQUINAS NO DEBEN SER USADAS POR NIÑOS
SAFETY AND WARNINGS SIGNS
Replace If Missing Or Illegible
One or more of these signs must be affixed on each machine as indicated, when not included as part of the front instruction panel.
LOCATED ON THE OPERATING INSTRUCTION SIGN OF THE MACHINE:
LOCATED ON THE DOOR:
WARNING!
THE DOOR IS LOCKED A SHORT
WHILE AFTER THE SYMBOL AT
TURN TO
DOOR OPENING
– DRUM STAND STILL
–PRESS – PULL
471 7676-02
If you need to order more safety or warning
signs, call Wascomat's parts department at
516-371-2000, or call your local dealer.
Page 4
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
Safety instructions
• This machine is designed for water washing only.
• This machine 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.
• The interlock of the door must be checked daily for proper
operation and must not be bypased.
• All seepage in the system, due to faulty gaskets etc., must be
repaired immediately.
• All service personnel must be fully familiar with the operating
manual before attempting any repair or maintenance of the
machine.
• This machine must not be sprayed with water, otherwise short
circuiting may occur.
• Fabric softeners with volatile or inflammable fluids are not to
be used in the machine.
The manufacturer reservs the right to make changes to design and
material specifications.
EX7, EX 10
Page 5
1
Introduction
Introduction
The EX 7 and EX 10 Emerald models washer/extractor with high spin
speeds, have been developed to meet the needs of state-of-the-art professional laundromats, institutions, hospitals etc., where high quality automatic 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. In addition, you
can charge a higher price if the customer selects the Extra Extract option.
Using an external clock and wiring harness, these models may be programmed to lower the price by any percentage between any hours of any
days, for the ultimate in pricing flexibility!
The machines are free-standing, i.e. the drum is free to move relative to the
frame of the machine, being suspended from it by springs. This results in a
considerable reduction in vibration transferred to the frame of the machine,
which in turn simplifies installation: no special foundation is required.
The seven cycles offer different water temperatures, wash times, extraction
times, and normal or gentle drum rotation. EMERALD SERIES washers
achieve maximum environmental efficiency because only the minimum
amount of water is used for each cycle, which vary in duration.
When ordering spare parts or contacting Wascomat or your dealer for
service, always give the machine serial number, model, voltage and other
electrical characteristics appearing on the data plate at the top left of the
rear panel of the machine. The serial number is also printed on a sticker
inside the door...
KEEP THIS MANUAL IN A SAFE PLACE FOR FUTURE REFERENCE!
1821
1
Fig.
1
Page 6
Technical data
2
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
Maximum floor load 1.64 ± 0.7 kN 390 ± 170 lbs force
Crated dimensions Volume 0.66 m
3
23.3 cu.ft
Weight 176 kg 387 lbs
Inner drum dimensions Diameter 520 mm 20 15/32 in
Depth 310 mm 12 3/16 in
Volume 60 litre 2.1 cu.ft
Drum speed Wash 52 rpm
Distribution 80 rpm
Extraction 1020 rpm
G-factor During wash 0.8
During extraction 300
Motor speed During wash 1140 rpm
During distribution 1740 rpm
During extraction 3430 rpm
Voltage requirements 120 V 1-Phase 60 Hz
Rated output power Motor, wash 140 W 0.19 HP
Motor, distribution 100 W 0.13 HP
Motor extraction 350 W 0.5 HP
Overcurrent protection 20 A
Water connections Rec. pressure 2-6 kp/cm
2
25-85 psi
Hose connection, water DN 20 3/4 in
Drain connection Hose 50 mm 2 in
Page 7
Technical data
3
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
Maximum floor load 2.3 ± 0.9 kN 550 ± 220 lbs force
Crated dimensions Volume 0.77 m
3
27.2 cu.ft
Weight 240 kg 528 lbs
Inner drum dimensions Diameter 520 mm 20 15/32 in
Depth 470 mm 18 1/2 in
Volume 100 litre 3.5 cu.ft
Drum speed Wash 52 rpm
Distribution 80 rpm
Extraction 1020 rpm
G-factor During wash 0.8
During extraction 300
Motor speed During wash 1130 rpm
During distribution 1730 rpm
During extraction 3400 rpm
Voltage requirements 120 V or 208-240 V 1- Phase 60 Hz
Rated output power Motor, wash 200 W 0.27 HP
Motor, distribution 180 W 0.24 HP
Motor extraction 550 W 0.74 HP
Overcurrent protection 20 A at 120 V
15 A at 208-240 V
Water connections Rec. pressure 2-6 kp/cm
2
25-85 psi
Hose connection, water DN 20 3/4 in
Drain connection Hose 50 mm 2 in
Page 8
Outline and dimension
Technical data
EX 7 EX 10
mm inches mm inches
A 1100 43 5/16 1100 43 5/16
B 485 19 3/32 485 19 3/32
C 440 17 5/16 440 17 5/16
D 260 10 1/4 260 10 1/4
E 720 28 11/32 720 28 11/32
F 660 26 820 32 9/32
G 65 2 9/16 65 2 9/16
H 555 21 27/32 715 28 5/32
J 50 1 31/32 50 1 31/32
K 905 35 5/8 905 35 5/8
L 40 1 9/16 40 1 9/16
M 60 2 3/8 60 2 3/8
N 210 8 9/32 210 8 9/32
O 130 5 1/8 130 5 1/8
P 360 14 5/32 360 14 5/32
R 150 5 29/32 150 5 29/32
4
C
B
A
E
D
F
G
H
J
K
L
N
O
M
P
R
Drain
Electrical
connection
Mounting
holes
Mounting
holes
Hot water
Cold water
1596
Page 9
Installation
2
0243
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 vibration transferred to the frame which in turn
simplifies installation: no special foundation is
required.
The machine is delivered complete with expansion bolts, template etc. packed inside the drum.
Move the machine on its pallet to where it is to be
installed before removing the pallet retaining
bolts.
Location
Install the machine close to a floor drain or open
drain.
In order to make installation and servicing the
machine easier the following clearances are
recommended:
• At least 20" between the machine and the wall
behind
• and a minimum of 2" on both sides of the
machine whether installed next to the wall or
other machines.
Where space is limited it is possible to reduce
this distance to a minimum of 1" at the rear and
sides, since most service operations are carried
out from the front or top of the machine.
Floor
The floor must be able to withstand the following
loads:
EX7 EX10
static 390 lbs 550 lbs
dynamic 170 lbs 220 lbs
frequency of 17 kHz 17kHz
dynamic force
5
20"
2"
Fig.
2
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 orderto remove these
and install the machine, proceed as follows:
• Unpack the machine.
• Slacken off the screws in the lower edge of
the front cover plate and remove the plate by
pulling downward and outward to unhook it
from the chassis.
• Unscrew the retaining screws on the rear
plate and remove the plate. Remove the
drainage connection by unscrewing the two
screws. Lift the drainage connection upwards
until comes loose from the rear plate.
• Mark and drill two holes (diameter =5/16")
about 4" deep in the positions shown.
• Remove the machine from the transport pallet.
Fit the adjustable feet provided.
• Place the machine above the bolt holes you
just drilled. Always lift the machine by the
chassis, never by the door or door handle.
• Remove the four transport bolts securing the
drum to the chassis.
• Check that the machine is level and steady.
Adjust the level by using the four adjustable
feet (check first that they are screwed in as far
as possible). Lock the feet using the lock nuts
when the machine is satisfactorily positioned.
NOTE!
It is of utmost importance that the
machine be level, from side- to- side as
well as front- to- rear. If the machine is not
properly leveled, it may result in a false
out-of-balance cutout.
• Insert the expansion bolts supplied in the
holes drilled in the floor.
Fit the washers and nuts, and tighten well.
After the machine has been in use for a while
check and retighten the nuts if necessary.
3
4
5
6
0674
0244
0672
0671
6
EX 7
EX 10
720 mm
65mm
230mm
260mm
230mm
2 9/16 in
9 1/16 in
10 1/4 in
9 1/16 in
28 11/32 in
EX10:
820mm
32 9/32 in
EX7:
660mm
26 in
Fig.
3
Fig.
4
Fig.
5
Fig.
6
Page 11
Installation
Water supply
NOTE
All plumbing must conform to national
and local plumbing codes.
The water supply to the machine should be fitted
with manual shut-off valves to facilitate installation and servicing.
Water inlets are labelled for hot and cold water
connections. Hoses should be flushed through
before being connected to the machine.
Connection hoses should be 3/4" reinforced
rubber hosing not to exeed 6 ft in length. Make
sure the hoses have no sharp bends or angles.
Water pressure should be:
maximum: 142 psi (10 kp/cm
2
)
recommended: 25-85 psi (2-6 kp/cm
2
)
7
7
8
9
0248
1597
1598
Cold water
Hot water
Fig.
7
Fig.
8
Fig.
9
Page 12
Drain connection
Connect a 50 mm (2") flexible hose to the
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"). Refer to local regulations on
watersupply and drainage.
Electrical installation
Electrical installation must be carried out
by an authorized electrician, and must
follow national and local regulations.
Make sure that the ground wire is
correctly connected.
Each machine must be connected through its
own circuit breaker.
The cable must hang in a gentle arc.
Installation
0057
8
1599
10
11
Fig.
10
Fig.
11
Machines connected for 1 AC
2189
12
Fig.
12
Page 13
13
14
Installation
15
1600
1602
1820
Start-up and safety checklist
Before initial start-up of a Wascomat washerextractor, the following safety checks must be
performed:
• Make sure that all electrical and plumbing
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.
• Make sure the machine is properly grounded
electrically.
Before the machine is operated, the door safety
interlock must be checked for proper operation
as follows:
• When washer loading door is open, the
machine must not start. Verify this by
attempting to start washer with door open.
• When washer is in operation, the loading door
is locked and cannot be opened. Verify this by
attempting to open the loading door when the
machine is operating. If necessary, consult
this manual for proper operation of the door
lock and door safety interlock or call a
qualified serviceman.
IMPORTANT:
Door safety interlock must be checked daily
in accordance with above procedure.
WARNING:
Before servicing Wascomat equipment,
disconnect electrical power.
Fig.
13
Fig.
14
Fig.
15
9
Page 14
1822
16
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.
The machine should be cleaned when the
installation is completed, and checked out as
detailed below without loading the machine with
fabrics:
1. Check the incoming power for proper voltage,
phase and cycles.
2. Open manual shut-off valves to the machine.
3. Turn on electric power.
4. Check the door safety interlock as detailed on
page 10 of this manual.
5. Select the HOT program and start the
machine.
6. Run through a complete cycle, checking for
water temperature, drain operation and the
extract function.
7. In the wash cycle only hot water should enter.
If cold water comes in, the hoses are
improperly connected. Reverse hot and cold
water hoses.
NOTE
All machines are factory tested prior to
shipment. Occasionally, some residual
water may be found when the machine is
installed.
Installation
Fig.
16
10
17
Fig.
17
HOT
Time Temp.
(Min.)
Prewash 3 Warm
Detergent 1
Drain 0.8
Mainwash 6 Hot
Detergent 2
Drain 0.8
Extraction 0.5
Rinse 1 1 Warm
Drain 0.8
Extraction 0.5
Rinse 2 1 Cold
Drain 0.8
Extraction 0.5
Rinse 3 2 Cold
Detergent 3
Drain 1
Extraction 4
Shake-out 0.5
Total time 23
(water fill time
not included)
1203
Page 15
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.
• The interlock of the door must be checked daily for proper operation
and must not be bypassed.
• All seepage in the system, due to faulty gaskets etc., must be repaired
immediately.
• All service personnel must be fully familiar with the operating manual
before attempting any repair or maintenance of the machine.
• This machine must not be sprayed with water, otherwise short circuiting
may occur.
• Fabric softeners with volatile or inflammable fluids are not to be used in
this machine.
Safety Rules
11
Page 16
12
2172
Operating instructions
The keypad consists of seven wash program button, two option buttons and
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.
If a fault occurs then error numbers on the Information Display will refer you
tot he fault code list under Fault Finding in this manual.
START
Extra
extract
Gentle
action
Hot
Warm
Cold
Delicate
Permanent Press
Quick - Wash
Heavy Soil
Heavy Soil
Prewash
Wash
Rinses
Final Extract
Extra Extract
Open door after
becomes
Add bleach
if desired
Rinse
Rinse
Add
softener
INFORMATION
DISPLAY
18
Fig.
18
Page 17
13
Operating Instructions
Operating Instructions
Preparations
Sort the wash according to the choices shown on
the control panel. Check washing tips on garment labels.
Make sure all pockets are empty and zips closed.
Load the washer and lock the door.
Washing
• Push one wash cycle button.
An arrow to the right of the control panel will
light up to show selection. Left arrows will light
to show the steps in the program.
• Select Extra Extract and/or Gentle Wash if
desired. Arrows will point to them.
• Three symbols in the Information Display
show in which compartments to put detergent
and softener.
- Prewash detergent in compartment 1.
- Mainwash detergent (and later bleach) in
compartment 2.
- Final rinse softener in compartment 3.
• You do not need more than 1/4 cup detergent
in a EX7 ES or EX10 ES..
0256
1302
1301
1300
Fig.
22
Fig.
21
Fig.
19
Fig.
20
19
20
21
22
Page 18
14
Operating Instructions
1303
1022
1020
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.
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
should take). The microprocessor retains in
memory how long it took to run each cycle the
last five times and displays the average time.
Since water pressure may fluctuate affecting fill
times, the displayed average cycle time is not
always exact and may vary from machine to
machine. If you find cycle times taking longer and
longer, use that information as a warning that
your water inlet screens may be clogged,
extending fill times, or some other problem may
exist.
Figure 25 illustrates a temperature display
function only available on washers with built-in
heating, which are not used in North America.
Fig.
23
Fig.
24
Fig.
25
24
23
25
Page 19
15
1304
1024
Operating Instructions
Fig.
27
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
the arrows rapid advance. Stop pressing
where you want the cycle to continue.
• If during the first five minutes of a cycle
customers realize that they put a wrong item
of clothing in the washer (for example a
brightly colored shirt mixed up with white
sheets), they can rapid advance through the
entire cycle, open the door and remove the
item. Then lock the door and press START
again to continue the cycle from where rapid
advance was started. No money is lost and no
extra time is gained. The remaining time will
not be displayed.
Changing Wash Programs While Washing
If within 5 minutes after starting a cycle (only
while the colon : is flashing) customers realize
that the wrong cycle has been selected, they can
push the START button once briefly to put the
washer on pause. They may then press a
different wash cycle button and press START
again to continue from the same step in the new
cycle.
If the customer selects a different cycle or Extra
Extract option that costs more money, the
washer will not start again unless additional coins
are inserted as shown on the Information
Display. There is no way for a customer to pay
for a less expensive program and switch to a
more expensive program without paying for it, or
to gain additional free wash time.
Note: Rapid Advance is only possible during the
first five minutes of a cycle, while the colon : is
flashing. However, if the START button is
pressed after five minutes has elapsed it will put
the wash cycle on pause, which means washing
stops, the clock stops counting down remaining
wash time, and an arrow flashes on the
Information Display at which ever step the wash
cycle was in when pause began. Press START
again to resume washing. Be alert to any
accidental pauses, which are unlikely but
possible.
Fig.
26
27
26
Page 20
16
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.
• Clean the detergent compartments and wipe down the machine with a
damp cloth.
• Check that the drain valve does not leak.
• Start the machine and check that the door is locked while the machine
is operating.
Every three months
• Check for leaks in valves, hoses and connections.
• Remove any lint from the machine’s drainage system.
Troubleshooting
If the machine won’t start, check that:
• the circuit breaker is on.
• the manual shut-off valves for water are open.
• a program has been selected.
• the door is properly locked.
Page 21
17
Programming
1473
1030
28
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
• Remove the coin box.
• Press one wash cycle button so an arrow
points to it.
• Toggle and
hold the price programming switch
located at the back of the coin box in the PP
(price programming) position.
This transforms the various buttons into a
numerical keypad. Numbers 1 - 7 are on the
wash cycle buttons, the Extra Extract button is
8, and the Gentle Wash button is 9. The
START button is 0.
Fig.
28
Fig.
29
29
Page 22
18
Programming
1031
Fig.
30
30
• Program the price by using the keypad to
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. Repeat for the other six cycles,
using any prices in quarters you want.
If you want to raise prices if Extra Extract is also
selected, first program prices for each of the
seven wash cycles. Then program a different
price for each wash cycle plus Extra Extract. For
example, program a price for the Hot cycle. Then
press the Hot button
and
the Extra Extract button
so arrows point to both. Now program a new
price for the combination of Hot plus Extra
Extract. Typically you would program a price for
the combination that is one quarter higher, but
that's totally up to you. If you later change pricing
of a cycle don't forget to change pricing of the
combination with Extra Extract.
Use of the Gentle Wash button cannot affect
pricing.
Programming Tip:
Too many different prices may confuse
customers. We suggest using three or four
different prices for the seven wash cycles.
Typically Heavy Soil will be the most expensive,
Hot and Warm the second most expensive,
Quick-Wash, Delicate, and Permanent Press the
third most expensive, and Cold least of all. But as
always, pricing is totally up to
you
. Wascomat
EMERALD SERIES washers give you complete
price flexibility so you can maximize revenue and
beat the competition.
Page 23
19
Programming
1838
1033
1473
1030
34
Fig.
31
Wiring for automatic price reduction
Emerald washers have a price reduction terminal
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. Each
relay box can be expanded to handle up to 32
washers by adding snap-in contacts (Part No.
510192). The relay box is plugged into a
programmable appliance timer clock (such as
Radio Shack model 63-892) which you program
with the days and hours you want automatic price
reduction to be on or off. Refer to technical
instruction No. 1040 for detailed installation
instructions.
Programming automatic price reduction
Price reduction is programmed into each
individual
washer as a percentage reduction of
the normal prices. For example, if a cycle is
normally eight quarters and you program a 25%
price reduction, the reduced price will be 6
quarters. An external clock is programmed with
the days and hours you want the price reduction
to activate and deactivate. (This clock has
nothing to do with the clock symbol on the
Information Display, which counts down
remaining wash time).
• Press the Extra Extract button until
only
the
arrow that points to it is lit.
• Toggle and
hold the price programming switch
at the back of the money box compartment.
This transforms the buttons into a numerical
keypad. Numbers 1-7 are on the wash cycle
buttons, the Extra Extract button is 8 and the
Gentle Wash button is 9. The START button
is 0.
Fig.
34
Fig.
33
Fig.
32
31
32
33
Page 24
20
Programming
1046
1474
1475
37
36
35
• 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.
• Release the price programming switch. Programming is now complete. Check to see that
your regular prices appear on the display
after
you select a cycle. If not, just toggle the
programming switch once to reset the system.
Since price reductions are programmed into each
individual washer you can program different
percentage price reductions for different size
washers, or you could connect your various size
washers to separate clocks and program the
clocks to reduce prices on different days or at
different times. With Wascomat Emerald Series
washers there is virtually no limit on your ability to
create innovative price promotions to build your
business, maximize profits, and eliminate any
correlation between water consumption and
revenue!
Coin counter
The microprocessor features a built-in coin
counter which uses a four-digit number (0000 -
9999) to indicate how many coins have been fed
into the meter. The coin counter can only be reset
to zero with a special microchip from Wascomat,
so if someone else does your connections, you
can check the reciepts.
A coin count reading is made as follows:
• Press one of the cycle selection buttons
repeatedly until the
only
arrow lit is the bottom
left arrow (open door arrow).
• Toggle and
hold the price programming
switch.
• The two lower digits (for example "18") of the
four-digit coin count number (for example
6,518) will now appear in the Information
Display. Release the programming switch.
• Toggle and
hold the price programming switch
while
also
pressing any one of the wash cycle
buttons. The two higher digits (for example,
"65") of the coin count number will now appear.
A total of 6,518 quarters have been inserted
into this washer. If your log book shows the
count was 6,200 last time you collected, then
6,518 minus 6,200 equals 318 quarters, which
should be in the money box!
Fig.
35
Fig.
37
Fig.
36
Page 25
21
Wash Cycles
In the figure below is an overview of the seven wash cycles.
On the following pages you will find a more detailed description of the
cycles.
Wash Cycles
38
1202
Fig.
38
HOT WARM COLD PERM PRESS
Time Temp. Time Temp. Time Temp. Time Temp.
(Min.) (Min.) (Min.) (Min.)
Prewash 3 Warm 3 Warm 3 Cold 3 Warm
Detergent 1
Drain 0.8 0.8 0.8 0.8
Mainwash 6 Hot 6 Warm 6 Cold 6 Warm
Detergent 2
Drain 0.8 0.8 0.8 0.8
Extraction 0.5 0.5 0.5 0.5
Rinse 1 1 Warm 1 Cold 1 Cold 1 Cold
Drain 0.8 0.8 0.8 0.8
Extraction 0.5 0.5 0.5 0.5
Rinse 2 1 Cold 1 Cold 1 Cold 1 Cold
Drain 0.8 0.8 0.8 0.8
Extraction 0.5 0.5 0.5 0.5
Rinse 3 2 Cold 2 Cold 2 Cold 2 Cold
Detergent 3
Drain 1 1 1 1
Extraction 4 4 4 1
Shake-out 0.5 0.5 0.5 0.5
Total time 23 23 23 20
(water fill time
not included)
Page 26
22
39
Wash Cycles
1202
DELICATE QUICK-WASH HEAVY SOIL
Time Temp. Time Temp. Time Temp.
(Min.) (Min.) (Min.)
Prewash 2 Cold
Drain 0.8
Prewash 3 Warm
Detergent 1
Drain 0.8
Mainwash 4 Warm 5 Warm 8 Hot
Detergent 2
Drain 0.8 0.8 0.8
Extraction 0.5 0.5 0.5
Rinse 1 1 Cold 1 Cold 1 Warm
Drain 0.8 0.8 0.8
Extraction 0.5
Rinse 2 1 Cold 1 Cold 1 Cold
Drain 0.8 0.8 0.8
Extraction 0.5
Rinse 3 2 Cold 2 Cold 2 Cold
Detergent 3
Drain 1 1 1
Extraction 1 3 4
Shake-out 0.5 0.5 0.5
Total time 13.3 16.3 27.6
(water fill time
not included)
Page 27
23
Wash Cycles
40
1203
Hot
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
the incoming water.
When this level is reached, both water valves will
close. During filling and then through the wash
program the drum has a reversing rotation.
At the end of the prewash, the drain valve will
open, whereafter hot water will fill to the level
determined by the level control. At the same time
detergent from compartment 2 is mixed with the
incoming hot water.
The water level controlled machine will now wash
the fabrics for 6 minutes. The machine is then
emptied.
Hot and cold water are filled to the medium level
for the first rinse which lasts one minute, followed
by spin extraction for 30 seconds. After the
extraction comes the second rinse in cold water,
ending with extraction, whereafter the third rinse
is started. Fabric softener is automatically
admitted during the third rinse. The fabrics are
rinsed in cold water for two minutes followed by a
extraction of four minutes duration. Finally there
is a shake out for half a minute.
Fig.
40
HOT
Time Temp.
(Min.)
Prewash 3 Warm
Detergent 1
Drain 0.8
Mainwash 6 Hot
Detergent 2
Drain 0.8
Extraction 0.5
Rinse 1 1 Warm
Drain 0.8
Extraction 0.5
Rinse 2 1 Cold
Drain 0.8
Extraction 0.5
Rinse 3 2 Cold
Detergent 3
Drain 1
Extraction 4
Shake-out 0.5
Total time 23
(water fill time
not included)
Page 28
24
Warm
On starting the machine, the door will automatically be locked, and the pre-wash carried out as
previously described, whereafter the main wash
is started.
As the main wash is started, the drain valve
closes, detergent is admitted and mixed hot and
cold water is filled to the level determined by the
level control.
On reaching this level, the water valves are
closed.
The water level controlled machine will now wash
the fabrics for six minutes. The machine is then
emptied.
Cold water is filled for the first rinse which lasts
one minute, followed by extraction for 30
seconds.
After this extraction comes the second rinse in
cold water ending with extraction, whereafter the
third rinse is started. Fabric softener is
automatically admitted during the third rinse. The
fabrics are rinsed with cold water for two minutes
followed by a extraction of four minutes duration.
Finally there is a shake out for half a minute.
Wash Cycles
41
1204
Fig.
41
WARM
Time Temp.
(Min.)
Prewash 3 Warm
Detergent 1
Drain 0.8
Mainwash 6 Warm
Detergent 2
Drain 0.8
Extraction 0.5
Rinse 1 1 Cold
Drain 0.8
Extraction 0.5
Rinse 2 1 Cold
Drain 0.8
Extraction 0.5
Rinse 3 2 Cold
Detergent 3
Drain 1
Extraction 4
Shake-out 0.5
Total time 23
(water fill time
not included)
Page 29
25
Wash Cycles
42
1205
Cold
On starting the machine, the door will automatically 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.
As the main wash is started, the drain valve
closes, detergent is admitted and cold water is
filled to the level determined by the level control.
On reaching this level, cold water is closed.
The water level controlled machine will now wash
the fabrics for six minutes. The machine is then
emptied.
Cold water is filled for the first rinse which lasts
one minute, followed by extraction for 30
seconds.
After this extraction comes the second rinse in
cold water concluded with extraction, whereafter
the third rinse is started.
Fabric softener is automatically admitted during
the third rinse. The fabrics are rinsed with cold
water for two minutes followed by a extraction of
four minutes duration. Finally there is a shake out
for half a minute.
Fig.
42
COLD
Time Temp.
(Min.)
Prewash 3 Cold
Detergent 1
Drain 0.8
Mainwash 6 Cold
Detergent 2
Drain 0.8
Extraction 0.5
Rinse 1 1 Cold
Drain 0.8
Extraction 0.5
Rinse 2 1 Cold
Drain 0.8
Extraction 0.5
Rinse 3 2 Cold
Detergent 3
Drain 1
Extraction 4
Shake-out 0.5
Total time 23
(water fill time
not included)
Page 30
26
Permanent Press
On starting the machine, the door will automatically be locked, the drain valve closed, the hot and
cold water valves opened and the pre-wash will
be carried out as previously described, whereafter the main wash is started.
As the main wash is started, the drain valve
closes, detergent is admitted and mixed hot and
cold water is filled to the level determined by the
level control.
On reaching this level, the water valves are
closed and the wash motor starts its reversing
rotation.
The water level controlled machine will now wash
the fabrics for six minutes. The machine is then
emptied.
Cold water is filled for the first rinse which lasts
one minute, followed by extraction for 30
seconds.
Fabric softener is automatically admitted during
the third rinse. The fabrics are rinsed with cold
water for two minutes followed by a extraction of
one minute duration. Finally there is a shake out
for half a minute.
Wash Cycles
43
1206
Fig.
43
PERM PRESS
Time Temp.
(Min.)
Prewash 3 Warm
Detergent 1
Drain 0.8
Mainwash 6 Warm
Detergent 2
Drain 0.8
Extraction 0.5
Rinse 1 1 Cold
Drain 0.8
Extraction 0.5
Rinse 2 1 Cold
Drain 0.8
Extraction 0.5
Rinse 3 2 Cold
Detergent 3
Drain 1
Extraction 1
Shake-out 0.5
Total time 20
(water fill time
not included)
Page 31
27
Delicate
On starting the machine, the door will automatically be locked.
As the main wash is started, the drain valve
closes, detergent is admitted and mixed hot and
cold water is filled to the level determined by the
level control.
On reaching this level, the water valves are
closed.
The water level controlled machine will now wash
the fabrics for four minutes. The machine is then
emptied.
Cold water is filled for the first rinse which lasts
one minute.
Than comes the second rinse in cold water
whereafter the third rinse is started. Fabric softener is automatically admitted during the third
rinse. The fabrics are rinsed with cold water for
two minutes followed by a extraction of one
minute duration. Finally there is a shake out for
half a minute.
During washing and rinsing gentle action is used,
which is 3 seconds drum rotation and 12 seconds
pause, then reverse direction and repeat. The
GENTLE WASH option button does not affect the
Delicate cycle.
Wash Cycles
44
Fig.
44
DELICATE
Time Temp.
(Min.)
Prewash
Drain
Prewash
Detergent 1
Drain
Mainwash 4 Warm
Detergent 2
Drain 0.8
Extraction 0.5
Rinse 1 1 Cold
Drain 0.8
Extraction
Rinse 2 1 Cold
Drain 0.8
Extraction
Rinse 3 2 Cold
Detergent 3
Drain 1
Extraction 1
Shake-out 0.5
Total time 13.3
(water fill time
not included)
Page 32
28
Wash Cycles
45
Quick-Wash
On starting the machine, the door will automatically be locked, the drain valve closed.
As the main wash is started, the drain valve
closes, detergent is admitted and warm water is
filled to the level determined by the level control.
On reaching this level, hot water is closed.
The water level controlled machine will now wash
the fabrics for five minutes. The machine is then
emptied.
Cold water is filled for the first rinse which lasts
one minute.
Then comes the second rinse in cold water,
whereafter the third rinse is started.
Fabric softener is automatically admitted during
the third rinse. The fabrics are rinsed with cold
water for two minutes followed by a extraction of
three minutes duration. Finally there is a shake
out for half a minute.
Fig.
45
QUICK-WASH
Time Temp.
(Min.)
Prewash
Drain
Prewash
Detergent 1
Drain
Mainwash 5 Warm
Detergent 2
Drain 0.8
Extraction 0.5
Rinse 1 1 Cold
Drain 0.8
Extraction
Rinse 2 1 Cold
Drain 0.8
Extraction
Rinse 3 2 Cold
Detergent 3
Drain 1
Extraction 3
Shake-out 0.5
Total time 16.3
(water fill time
not included)
Page 33
29
Heavy Soil
On starting the machine, the door will automatically be locked, the drain valve closed, the hot and
cold water valves opened and the two pre-washes will be carried out as previously described,
whereafter the main wash is started.
As the main wash is started, the drain valve
closes, detergent is admitted and hot is filled to
the level determined by the level control.
On reaching this level, the water valve is closed
and the wash motor starts its reversing rotation.
The water level controlled machine will now wash
the fabrics for eight minutes. The machine is then
emptied.
Hot and cold water are filled for the first rinse
which lasts one minute, followed by extraction for
30 seconds.
Fabric softener is automatically admitted during
the third rinse. The fabrics are rinsed with cold
water for two minutes followed by a extraction of
four minutes duration. Finally there is a shake out
for half a minute.
OPTION BUTTONS:
EXTRA EXTRACT -- Selecting this option adds 4
minutes to the final extraction of any cycle. For
example, the HOT cycle plus EXTRA EXTRACT
gives the customer a total of 8 minutes
extraction. You can easily program the washer to
charge more money (usually one more quarter) if
this option is selected! The effect of extra
extraction depends on the type of laundry washed, load size, etc.
GENTLE WASH -- The normal wash action of a
Wascomat washer is 12 seconds rotation, 3
seconds pause, reverse direction and repeat.
Selecting the GENTLE WASH option converts
the selected wash cycle to gentle action, which is
3 seconds drum rotation and 12 seconds pause,
reverse direction and repeat. The DELICATE
cycle always uses gentle action so it is not
affected by this option. There is no extra charge
to the customer for this option, so it is simply up
to them to choose their preference. You may
want to advertise and promote this option since
market research indicates there are people who
believe certain clothing items are too delicate to
wash in a commercial washer. Now you have the
answer!
Wash Cycles
46
Fig.
46
HEAVY SOIL
Time Temp.
(Min.)
Prewash 2 Cold
Drain 0.8
Prewash 3 Warm
Detergent 1
Drain 0.8
Mainwash 8 Hot
Detergent 2
Drain 0.8
Extraction 0.5
Rinse 1 1 Warm
Drain 0.8
Extraction 0.5
Rinse 2 1 Cold
Drain 0.8
Extraction 0.5
Rinse 3 2 Cold
Detergent 3
Drain 1
Extraction 4
Shake-out 0.5
Total time 27.6
(water fill time
not included)
Page 34
30
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.
Main units
1 Keypad with program selector - push-button switches for choice of
different wash programs.
2 Door - with automatic locking device which remains locked throughout
the different wash processes.
3 Detergent supply box - three compartments for automatic injection of
powdered detergents and fabric softener.
4 Inner cylinder - of stainless steel supported at the rear by two ballraces.
5 Outer drum - of stainless steel (18/8) supported by a four spring
suspention system. There are also four shock-absorbers to control the
movement of the drum.
6 Motor with an epicyclic gearbox - for reversing wash action, distribution
and high speed spin action.
7 Hot and cold water valves - program and level controlled solenoid valves
for filling with water, and for flushdown of automatic detergent dispenser.
8 Drain valve - timer controlled for draining the machine of water.
9 Siphon breaker - to prevent water in the machine from re-entering the
water supply system.
10 Electronic timer with quick-disconnect connectors.
Mechanical and electrical design
47
0918
1
3
10
7
6
8
2
9
4
5
Fig.
47
Page 35
31
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.
Frame
The frame consist of a bottom plate and two balance weights. The
balance weights form a cradle for the outer drum and are
suported by four springs. There are four shock absorbers to
control the movements of the drum.
Inner cylinder
The inner cylinder is made of perforated surgical stainless steel. It
is equipped with three lifting ribs and has highly-polished side
sheets and back with maximum embossed perforated area to
assure high flow of water and supplies through fabrics.
Scientifically correct ratio of cylinder diameter and depth assures
maximum washing action.
The shaft is electrically welded to the reinforced back of the cylinder. A specially designed chrome-plated sleeve bushing protects
the seals from wear.
0922
Balance weight,
left-hand, front
Balance weight,
right-hand, front
Bottom plate
Clamping bolt
Spring
Shock-absorber
Tie strap
48
Clamping screw
Fig.
48
Page 36
32
Back gable and bearing
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 condensation.
The seals are mounted on a chrome-plated, non-corresive, specially hardened sleeve bushing that is mounted on the drive shaft to prevent wear of
the seals and shaft. The main bearing is fitted machine-tight into the bearing trunnion housing. A C-clamp is placed on the shaft to prevent the
cylinder from moving in and out.
The extension of the bearing trunnion housing supports the rear bearing
holding the shaft. The bearings are permanently lubricated and need no
maintenance.
Mechanical and electrical design
2412
49
Rear wall
Fig.
49
Inner wall
Bushing
Sealing rings
Front bearing
Bearing housing
C-clamp
Rear bearing
EX7
Page 37
33
Mechanical and electrical design
NOTE
Do not repair a faulty door lock.
Allways replace the old unit
with a new one, to assure proper operation of the door safety
interlock.
0936
Description
The door locking mechanism is a safety system
that prevents injury by:
• Preventing the machine from starting before
the door has been closed and the handle
secured.
• Locking the door automatically when the
machine starts.
• Preventing the door from being opened before
the program has been concluded and the
drum is stationary. This ensures that the drum
is stationary when the door is opened and that
there is no water in the machine.
Brief description of the locking action
1. Door is closed Microswitch S3 is
operated by the door
and closes.
2. START The program TImer
button energises the PTC
pressed resistor in the locking
mechanism. This causes the
bimetal strip in the mechanism to heat up and toggle
over to lock the catch. It also
operates an electrical
contact, connecting the N
line to the connectors and
valves in the machine.
3. Program runs
4. Program is The supply to the PTC
finished resistor is disconnected,
allowing the bimetal to cool.
When it has cooled, it
toggles back and releases
the catch, while the electrical
contact interrupts the common (N) connection to the
connectors and valves.
50
Timer
Other
functions
Door lock
N
L1
Fig.
50
Page 38
34
Replacement of door lock
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).
4. Pull the lock outwards at the side of the front trim (2).
5. Transfer the electrical connections from the old locking mechanism to
the new locking mechanism, one at a time.
6. Position the new locking mechanism behind the front trim (3).Position
the striker plate and secure it using the two retaining screws (4).
7. Close the door of the machine and check that the door lock is
working.
8. Engage the front panel, and slide it upwards until it can be retained by
the two screws in the bottom. Fit the two screws (5).
9. Check that the door switch is operating properly by starting the
machine and checking that the door cannot be opened while the
program is running.
0925
51
Mechanical and electrical design
Fig.
51
Page 39
35
Mechanical and electrical design
Control unit
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.
0918
52
Level control unit
Relays
Control panel
Fig.
52
Page 40
36
Mechanical and electrical design
0907
54
0301
Relays
The EX7ES and EX10ES models employ four
relays. The relays control:
• wash speed forward
• wash speed reverse
• distribution speed
• extraction speed
Construction
The body of the relay holding the stationary
contacts is made of current-resistant plastic. A
solenoid and a contact bank hold the moving
contacts. The contacts are spring-loaded to
assure the correct contact pressure.
The relay is constructed for continous operation,
whether mounted horizontally or vertically.
Screw-type terminals provide perfect connections
even when one or two wires have different diameters.
Operation
When the solenoid is energized, the two halves
of the magnet core are drawn together, pulling
down the moving contacts, thus making or breaking the circuit. When the current cuts out,
springs force the contact bank into its original
position, thus closing or opening the circuits.
Trouble shooting
If the relay fails to operate despite power to the
coil, turn off the power and check the solenoid by
measuring the resistance across the terminals
(1).
If the relay hums when power is applied, this
indicates either a break in the insulator holding
the moving contacts at the axle where it holds the
top half of core (3) or a rusty core (4), which can
be cleaned.
Make sure that the moving contact assembly
moves freely. Always replace burnt or pitted
contacts (2) ... do not reuse contacts.
Wash
action
Distribution
53
Extraction
Fig.
53
Fig.
54
Page 41
37Mechanical and electrical design
0912
55
Motor
Gears with pulley
and centrifugal
clutch
V-belt
Wedges
Drive motor
Description
The motor is mounted on top of the outer drum,
on stepped feet to provide a means of adjusting
the belt tension. The motor drives the drum
through a gearbox and centrifugal clutch via a
V-belt.
The motor consists of stator, rotor and endshields with ball-bearings. The stator and the
rotor consists of plates, insulated from each other
and welded together. The stator is provided with
slots in which three windings are wound (one 6pole for washing action, one 4-pole for distribution speed and one 2-pole for extraction. The
windings are impregnated with a temperatureresistant sound-insulating resin varnish according
to class B. The end-shields are die-cast. The ball
bearings are permanently lubricated.
The gearbox and centrifugal clutch are mounted
in one housing on the motor shaft, with the outer
casing serving as the belt drive pulley. At
washing action speed, the clutch is disengaged,
with the result that the motor drives the pulley
through a gear reduction. At spin speed, the
centrifugal clutch engages and gradually locks
the planet carrier to the pulley casing. The pulley
is thus accelerated up, by conventional clutch
action, to full spin speed, at which speed it is
rotating at the same speed as the motor shaft.
This arrangement provides a change from
washing action speed to spin speed, that
requires only one drive motor.
Stepped motor mounts on the outer drum provide
a means of adjusting the belt tension. Four bolts
secure the motor to the outer drum. Wedgeshaped mounts with a number of steps between
the motor feet and the mounting points allow the
motor position to be adjusted to give the required
belt tension.
The motor incorporates a thermal overload
protector, embedded in the motor windings. If the
temperature of the windings exceeds about 150°
C, the contact interrupts the circuit to the motor
contactors.
Tensioning the drive belt
1. Slacken the motor securing bolts.
2. Adjust the position of the step wedges until
the correct belt tension is obtained. Always
adjust the wedges in pairs so that the
motor shaft remains parallel to the drum
shaft.
3. Retighten the nuts securing the motor.
Fig.
55
Page 42
38
Replacement of clutch shoes.
1. Slacken the nuts securing the motor and pull
the step wedges outwards to slacken the
drive belt. Remove the belt.
2. Disconnect the motor cable connector and
remove the motor.
3. Using a puller, pull off the clutch shoe carrier
from the motor shaft.
4. Gently tap the replacement clutch shoe
carrier onto the motor shaft.
5. Reposition the motor and replace the nuts
loosely. Fit the drive belt and connect the
motor plug.
6. Tension the drive belt as described above
under Tensioning the Drive Belt.
Replacing the gears
1. Slacken the nuts securing the motor and pull
the step wedges outwards to slacken the
drive belt. Remove the belt.
2. Disconnect the motor cable connector and
remove the motor.
3. Using a puller, pull off the clutch shoe carrier
from the motor shaft.
4. Remove the circlip from the motor shaft and
remove the four screws that secure the
gearbox to the motor casing.
5. Using an extractor, pull the gearbox off the
motor shaft.
6. Pass a new gearbox over the motor shaft
and secure it to the motor frame by means of
the four retaining screws.
7. Refit the circlip to the motor shaft and gently
tap a replacement clutch shoe carrier onto
the motor shaft.
8. Reposition the motor and replace the nuts
loosely. Fit the drive belt and connect the
motor plug.
9. Tension the drive belt as described above
under Tensioning the Drive Belt.
Mechanical and electrical design
56
0921
Motor
Motor shaft
Clutch shoe
carrier with
clutch shoes
Planet wheel
Centrifugal
clutch and
pulley
Washer
Retaining
screw
Circlip
Fig.
56
Page 43
39
As a further check, the No-load current with V-belt removed is as follows:
Machine No-load current (amps) at terminals:
model Wash Dist.
8910271347
Ex 7 3.6 3.6 1.9 6.2 6.2 6.6 5.6 6.6 3.9
EX 10
120V 4.7 5.5 2.4 8.9 8.9 11.0 6.4 11.0 6.8
Ex 10
208-240V 3.0 2.6 1.45 5.4 5.4 6.8 3.6 6.8 4.5
Machine Resistance (ohms) between terminals:
model 1-4 2-4 3-4 5-7 6-7 8-9 8-10 9-10
Ex 7 2.6 1.6 3.5 2.6 1.6 4.7 4.7 4.7
EX 10
120V 1.3 0.8 1.7 1.3 0.8 3.4 3.4 3.4
Ex 10
208-240V 4.0 2.7 7.7 4.0 2.7 11.4 11.4 11.4
57
0915
Motor cable connector
Checking the motor windings
At room temperature, the motor windings should have the approximate
resistances as shown below, when measured between the appropriate
connectors in the plug:
Fig.
57
Mechanical and electrical design
Page 44
40
Water level controls
One pressure switch (1) is used to control the
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.
Water level
As a guide for checking the level control for
proper functioning, the low level should be
when the water just reach to the top of the
paddle (1), and the high level when the water
just reach the outer edge of the tapered section
in the rear of the of the drum (2).
Mechanical and electrical design
58
59
0904
1
Fig.
58
Fig.
59
0907
Page 45
41
Mechanical and electrical design
Out of balance switch
Description
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.
Excessive movement of the outer drum caused by vibration will cause the
plate to operate the microswitch, resulting in the programmer stepping
forward to the next stage of the program and interrupting the current to the
spin connector.
See also Function Sequences.
Repair instructions
Checking the setting of the out-of balance protection switch.
When the machine is spinning, with a load in the drum, check that the
operating arm of the microswitch is about 5 mm below the centre of the
rectangular cut-out. Adjust if necessary by moving the metal plate with the
cut-out.
The out-of-balance protection switch operates repeatedly
• Unsuitable load in the drum
• The switch is incorrectly adjusted. Adjust as described above.
• The shock-absorbers are worn.
0933
60
Fig.
60
Control unit Microswitch
Operating arm
Contact plate
Outer drum
Page 46
42
Mechanical and electrical design
61
1456
62
G116
Fig.
61
Fig.
62
Inlet valves
Construction
The valve has a single-inlet with either one, two
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.
A filter screen on the inlet side prevents dirt from
entering the valve. Flow restrictors can be placed
at either the inlet or any of the outlets.
Operation
When the solenoid is energized, the springloaded plunger is drawn up and the pilot valve in
the center of the diaphragm open. Because of
the difference in diameter between the pilot valve
opening and the ventilating hole in the diaphragm, the pressure above the diaphragm drops
to a point where the admission pressure below
the diaphragm can lift the diaphragm, thus opening the valve.
When the current to the solenoid is cut off, the
plunger spring will press the plunger against the
pilot opening of the diaphragm. The pressure
above the diaphragm then rises to correspond to
the water inlet pressure and the pressure of the
spring will close the valve.
Spring
Solenoid
Plunger
Pilot valve
Ventilating
hole
Diaphragm
Page 47
43
Mechanical and electrical design
65
1181
63
1186
64
1187
Repair instructions
Limescale can block the holes in the valve
diaphragm and interfere with the function of the
valve.
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.
If the valve does not open
• Check that power is supplied to the coil.
• Check the coil with an instrument to determine
whether there is a break or a short circuit.
• Dismantle the valve (see below) and check
the openings in the valve diaphragm.
• Check the inlet strainer and clean as required.
• Undo the coil and clean the surfaces of the
magnetic core.
If the valve does not close
• Check that the coil is not live. The valve is
normally closed when the magnet is not
energised.
• Check the return spring.
• Check the diaphragm (pilot pressure opening).
Dismantling the valve
• Pull the coil straight upwards. Use a
screwdriver if necessary to carefully undo the
coil.
• Use the tool supplied (attached to one of the
hoses when the machine is delivered) to open
the valve housing. Slide the tool over the
protruding plastic sleeve to that the pegs on
the tool engage the corresponding sockets in
the valve housing.
• Use a spanner or a pair of pliers and unscrew
the upper part of the valve housing.
Fig.
63
Fig.
64
Fig.
65
Page 48
44
Mechanical and electrical design
66
1182
Soap supply box
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.
Compartment 2
This compartment is used for adding supplies to the wash at the beginning
of the Wash cycle.
Compartment 3
The small compartment is used for adding fabric softener, which is flushed
down by a siphon action at the start of the third rinse.
Fig.
66
Page 49
45
Mechanical and electrical design
67
Drain valve
Description
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:
• Motor and gear
• Trapezoidal-threaded piston rod with piston
and return spring
• Rubber membrane
• Connections for water filling, overflow, drain
and level switch
When de-energised, the valve is open. In this
state, the piston, under the action of the return
spring, is at the bottom of its travel. The
membrane follows the piston downwards and the
valve is open.
Energizing the motor drives the piston upwards
through the action of the gear and the trapezoidal
thread, pressing the membrane against the valve
seat and closing the valve.
The overflow connection is connected to the
siphon breaker, so that water and foam are
discharged directly to drain if the inlet valve or
level switch should fail.
0919
Fig.
67
Page 50
46
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
• Check that the motor is correctly energised
• Check that the piston rod can move freely
• Check that the membrane is not clogged with deposits
When changing the motor and gear assembly, note the following
cable connections:
Brown cable: 60 Hz
Blue cable: Common
Black cable: 50 Hz
Pre-tensioning the return spring
Remove the valve casing.
1. Turn the return spring so that the arm of the spring bears against the
stop screw.
2. Fit the piston rod so that the slot in which the spring is to engage is
aligned with the casing. Place the valve casing over the return spring
so that the pin on the spring fits into the slot in the piston rod.
3. Turn the casing through one turn clockwise. This will engage the pin
on the spring in the piston rod, tensioning the spring by about 1/4 of a
turn due to the rise of the piston rod.
1605
Mechanical and electrical design
Stop screw
Spring extension
Return spring pin
68
Fig.
68
Page 51
47
Maintenance
69
0050
Maintenance
Preventive maintenance has been reduced to a
minimum by the careful design of reliable components 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.
• Start the machine and check that the door
remains locked while the machine is
operating. Use the Rapid Advance function to
step the program to the Stop position and
check that the door stays locked until 30
seconds after the program is completed.
• Clean the door seal and remove powder
residue. Check that the door does not leak.
• Clean the detergent compartments and wipe
down the machine with a damp cloth.
• Check that the drain valve does not leak, and
that it opens properly.
Weekly
• Remove lint or fluff remnants from the drain
opening, joints in drain pipes, etc.
Every third month
• Check for leaks in valves, hoses and
connections.
• Check that the V-belts between the motor and
pulley is undamaged and correctly tensioned.
Make certain that all electrical power to
the machine is shut off before removing
top or rear panels.
Fig.
69
Page 52
48
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.
• a program has been selected.
• the drum door is locked
• the glass cartridge fuse is not blown.
If water does not drain
A Check drain valve for proper operation.
B Disconnect drain hose connected to drain line.
If full flow of water comes out, the problem is
in the main waste line. If water flow is slow,
the problem is the accumulation of foreign
materials between the drain valve and shell
outlet of machine. Clean valve body of any
foreign objects found.
If machine does not extract
A Check extract relay and relay coil for proper
operation.
B Check level control tube for clogging
If motor does not operate at wash speed
A Check wash relays.
B Check motor and V-belt.
C Check normally-closed contact of extract
relay.
D Review procedures outlined under section ”If
machine does not start” above.
70
0907
0918
71
72
0918
0050
A
B
A
A
B
C
Fig.
70
Fig.
71
Fig.
72
Page 53
49
Trouble shooting
73
0918
0912
74
If machine runs slowly on wash speed or there
is a slapping or thumping noise.
A Replace V-belts
If a metallic noise can be heard at rear of
machine
A Tighten pulley on motor shaft
A
A
Fig.
73
Fig.
74
Page 54
50
Trouble shooting
75
1606
76
If there is a leaking around the glass
A Replace door gasket if worn.
If water does not enter the machine.
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.
1594
B,C
A
0918
A
Fig.
75
Fig.
76
Page 55
51
Trouble shooting
77
0918
If water continues to fill without stopping.
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.
If water continues to flow without filling
machine.
C Check seating of drain valve.
A
B
C
Fig.
77
Fig.
77
Page 56
52
Fig.
78
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
indicated by a number code shown in the
Information Display .
For fault codes 01 and 02 restart may be
attempted after the fault has been corrected. For
all other faults power to the washer must be
turned off and on again before the washer can be
restarted.
If fault codes 03-09 appear, contact authorized
service personnel.
Fault Code Cause of fault
01 Water level too low. Open water
taps. Check level control.
Check drain valve for leak.
02 Door lock fault. Open and lock
door again. Replace if necessary.
03 Break in or to temperature sensor
(if heated).
04 Short-circuit in or to temperature
sensor (if heated).
05 Water in drum at start of cycle.
Clogged drain valve or drain line.
06 Software error. Try again or call
Wascomat.
07 Not used.
08 Too much water in drum at start of
an extraction. Clogged drain valve
or drain line.
09 Out-of-balance switch defective.
1026
Fault-Finding Program
78
Page 57
53
Built-in service program
1476
1037
80
79
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.
• Move the service switch to the service
program position. (The switch is located on
top of the circuit board next to the ribbon
connector).
This transforms the buttons into a numerical
keypad. Numbers 1-7 are on the wash cycle
buttons, the Extra Extract button is 8 and the
Gentle Wash button is 9. The START button
serves as an ON/OFF switch.
NOTE:
When in service program the number 0
does not exist. Numbers used are 11-19,
21-28 etc.
ON/OFF
Fig.
79
Fig.
80
Page 58
54
Built-in service program
1038
81
Function checks
The program indicator on the display window
indicates certain inputs by lighting arrows.. For
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.
Indicator Function
1 2 3 4 Balance sensor switch
5 Door lock
6 7 8 9 10 ON/OFF (function entered using the
various buttons - see below).
It is also possible to simulate certain functions by
using the various program selection buttons on
the control panel. The chosen function can then
be turned on and off using the START button.
Number 10 on the program indicator shows if the
function is on or off.
The table on the next page shows which
functions can be simulated, along with the
number code for each.
Fig.
81
Page 59
55
Built-in service program
1476
82
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.
Code Function
11 Flush compartment 1
12 Flush compartment 2
13 Flush compartment 3
14 Not used
15 Not used
16 Hot water valve
17 Cold water valve
18 Not used
19 Not used
21 Motor, wash (clockwise)
22 Motor, wash (counter-clockwise)
23 Distribution (counter-clockwise)
24 Extraction (counter-clockwise)
25 Not used
26 Drain valve
27 Door lock
28 Not used
Leaving service program
• Return the service switch to its original
position.
• Refit the machine’s top cover.
Fig.
82
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