Maxi MWHE20 User manual

PAGE
SECTION 1: IMPORTANT INFORMATION 1-1
1.1 INTRODUCTION 1-1
1.2 SAFETY CHECK LIST 1-1
1.3 OPERATOR SAFETY 1-2
1.4 SAFE OPERATION ENVIRONMENT 1-2
1.5 ENVIRONMENTAL CONDITIONS 1-2
1.6 MACHINE LOCATION 1-3
1.7 INPUT AND OUTPUT SERVICES 1-4
1.8 AC INVERTER DRIVE 1-4
1.9 MACHINERY MISUSE 1-5
1.10 THEORY OF OPERATION 1-5
SECTION 2: SPECIFICATIONS/COMPONENT IDENTIFICATION 2-1
2.1 TECHNICAL SPECIFICATIONS 2-2
SECTION 3: INSTALLATION PROCEDURES 3-1
3.1 DIMENSION CLEARANCES 3-1
3.2 MACHINE FOUNDATION 3-2
3.3 MOUNTING BOLT INSTALLATION 3-3
3.4 DRAIN CONNECTION 3-5
3.5 ELECTRICAL INSTALLATION 3-6
3.6 WATER CONNECTION 3-8
3.7 STEAM CONNECTION 3-9
3.8 EXTERNAL CHEMICAL SUPPLIES 3-9
3.9 CONTROL FUNCTION TEST 3-11
SECTION 4: OPERATING INSTRUCTIONS 4-1
SECTION 5: MAINTENANCE 5-1
5.1 DAILY 5-1
5.2 WEEKLY 5-2
5.3 MONTHLY 5-2
5.4 QUARTERLY 5-3
5.5 CARE OF STAINLESS STEEL 5-4
5.6 AC DRIVE MAINTENANCE 5-4
SECTION 6: DECOMMISSIONING 6-1
SECTION 7: TROUBLE SHOOTING 7-1
SECTION 8: PARTS LIST

Anyone operation or servicing this machine must follow the safety rules in this manual.
Particular attention must be paid to the DANGER, WARNING, and CAUTION blocks which
appear throughout the manual
Symbols Description
The lightening flash and arrowhead within the triangle is a warning sign
alerting you of the presence of dangerous.
The exclamation point within the triangle is a warning sign alerting you
of important instructions concerning the machine.
This warning symbol indicated the presence of hot surfaces t
hat could
cause serious burns.
Stainless steel and steam lines can become
extremely got and should not be touched.
Before servicing any equipment, make certain it is disconnected from
the electrical power source. Never allow operation of the machine when
any safety device is malfunctioning. Never bypass safety devices.
This warning symbol alerts you to the presence of possible dangerous
drive mechanisms within the machine. Guards should always be in
place when the machine is in operation.
This warning symbol indicated the presence of
possibly dangerous
chemicals. Proper precautions should be taken when handling corrosive
or caustic material.
This warning symbol indicates the presence of possible dangerous pinch
– points. Moving mechanical parts can crush and/or sever body parts.

IMPORTANT INFORMATION
1-1
SECTION 1
IMPORTANT INFORMATION
1.1 INTRODUCTION
The HARDMOUNT line is the professional fixed mount washer – extractor series of
machines. It is an open pocket washer – extractor with a large and unloading. It has been developed
for the in premise market, and is suitable for commercial laundries, hotel and other places where
laundry might be processed.
The design allows for top performance at lowest possible operation cost and investment.
The flexible electronic control center ensures that maximum productivity is obtained.
The HARDMOUNT Series utilizes high quality material, such as 304 (18/8) stainless steel
in vital parts in contact with the wash solution. It has a stainless steel cabinet for long life with
easily removable panels.
The key advantages of this series are the simplicity of the microprocessor and the electronic
AC drive system, which utilizes only one motor. The system allows for washing and extraction at
suit any textile fiber used today and tomorrow. The high speed final extraction saves time and
energy in the finishing operation.
A multi compartment supply dispenser for powder and liquid detergents is standard and the
machine is designed to accept the connection of 4 external chemical lines and pumps.
1.2 SAFETY CHECK LIST
Before Initial start up of a washer – extractor perform the following safety check:
A. Make sure all electrical and plumbing connections have been made in accordance with
applicable codes and regulations.
B. Make sure the machine is grounded electrically.
C. Make sure the machine has flexible water fill and drain connections of the correct size,
length and type, with no kinks, and that they are securely attached and/or clamped.
Before machine is placed in operation, the door safety interlock must be checked for proper
operation as follows:
A. When the washer is energized electrically and in operation, the loading door must be
locked in the closed position. Verify this by attempting to open the loading door when the
machine is operating. If necessary, check the door safety interlock and sensors for proper
operation. Consult the service manual, or call a qualified service technician if necessary.
B. When the washers loading door is open, it should not be possible to start the machine.
Verify this by attempting to start the washer with the door open. Also, close the door
without locking it and verify that it is not possible to start the machine with the door not
locked. If necessary, check the door lock sensors for proper operation. Consult the service
manual, or call a qualified service technician. If additional information is required,
contact your local distributor or call the manufacturer of the machine.
•To provide personal safety and keep the machine in proper working order, follow all
maintenance and safety procedures presented in this manual. If questions regarding
safety arise. Contact the factory immediately.
•Use factory authorized spare parts to avoid safety hazards.

IMPORTANT INFORMATION
1-2
Before servicing any equipment, make
certain it is disconnected from the
electrical power source. Never allow operation of the machine when any safety
device is malfunctioning. Never bypass safety devices.
Never insert hands or objects into basket until it has completely stopped doing so
could result in serious injury.
1.3 OPERATOR SAFETY
To ensure the safety of machine operators the following maintenance checks must be
performed daily.
1. Prior to operating the machine, verify that all warning signs are present and legible.
Missing or illegible signs must be replaced immediately. Make certain that spares are
available.
2. Check door interlock before starting operation of the machine, see safety check list.
3. Do not attempt to operate the machine if any of the flowing conditions are present.
•The door does not remain securely locked during the entire cycle.
•Excessively high water level is evident.
•Machine is not connected to a properly grounded circuit.
Do not bypass any safety devices in the machine.
Never operate the machine with a bypassed or disconnected out – of – balance
switch. Operating the machine with severe out – of – balance loads could result
in personal injury and serious equipment damage.
Do not place volatile or flammable fluids in any machine. Do not clean the
machine with volatile or flammable fluids such as acetone, lacquer thinners
enamel reducers, carbon tetrachloride, gasoline, benzene, naphtha, etc. Doing so
could result in serious personal injury and/or damage to the machine.
1.4 SAFE OPERATION ENVIRONMENT
Safe operation requires an appropriate operating environment for both the operator and the
machine. If questions regarding safety arise, contact the factory.
1.5 ENVIRONMENTAL CONDITIONS
1. Ambient Temperature
Water in the machine will freeze at temperatures of 32 ºF (0 ºC) or below. Temperatures
above 120 ºF (50 ºC) will result in more frequent motor overheating and, in some cases,
malfunction or premature damage to solid state devices that are used in the machines. Special
cooling devices may be necessary.

IMPORTANT INFORMATION
1-3
2. Humidity
Relative humidity above 90% may cause the machines electronics or motors to malfunction
or may trip the ground fault interrupter. Corrosion problems may occur on some metal components.
If the relative humidity is below 30% belts and rubber hoses may eventually develop dry rot. This
condition can result in hose leaks, which may cause hazards external to the machine in conjunction
with adjacent electrical equipment.
3. Ventilation
The need for make – up air openings for such laundry room accessories as dryers, ironers,
water heaters, etc. must be evaluated periodically. Louvers, screens, or other separating devices
may reduce the available air opening significantly.
4. Radio Frequency Emissions
A filter is available for machines in installations where floor space is shared with equipment
sensitive to radio frequency emissions. All machined that are shipped to CE countries are equipped
with this filter and comply with the EMI regulations.
5. Elevation
If the machine is to be operated at elevations over 3280 feet (100 meter) above sea level, pay
special attention to water levels and electronic settings (particularly temperature) or desired result
may not be achieved.
6. Chemicals
Keep stainless steel surfaces free of chemical residues to avoid corrosion.
7. Water damage
Do not spray the machine with water. Short circuiting and serious damage may result.
Repair immediately all seepage due to faulty gaskets, etc.
Replace all panels that are removed to perform service to perform service and
maintenance procedures. Do not
operate the machine with missing guards or
with broken or missing parts. Do not bypass any safety devices.
1.6 MACHINE LOCATION
1. Foundation
The concrete floor must be of sufficient strength and thickness to handle the floor loads
generated by the machine at high extract speeds.
2. Service / Maintenance Space
Provide sufficient space to allow comfortable performance of service procedures and routine
maintenance. This is especially important in connection with machine equipped with AC inverter
driver. Consult installation instructions for specific details.

IMPORTANT INFORMATION
1-4
1.7 INPUT AND OUTPUT SERVICES
1. Water pressure
Best performance will be realized if water or provided at a pressure of 30 – 87psi (2 – 6
bar). Although the machine will function properly at lower pressure, increased fill time will occur.
Water pressure higher than 120 psi (8 bar) may result in damage to machine plumbing components
failure (s) and personal injuries.
2. Optional Steam heating pressure
Best performance will be realized if steam pressure is provided at a pressure of 30 – 80 psi
(2 – 5.5 Bar). Steam pressure higher than 125 psi (8.6 Bar) may result in steam components and
may cause personal injuries. For machines equipped with optional steam heat, install piping in
accordance with approved commercial steam practices. Failure to install the supplied steam filter
may void the warranty.
3. Compressed Air
For machines requiring compressed air service, best performance will be realized if air is
provided at a pressure of 58 – 87 psi (4– 6 Bar). Large capacity machines could experience door
seal failures if compressed air service is interrupted.
4. Drainage System
Provide drain lines or trough large enough to accommodate the total quantity of water that
could be dumped if all machines on the site drained at the same time from the highest attainable
level. If drain troughs are used, they should be covered to support light foot traffic.
5. Power
For personal safety and for proper operation, the machine must be grounded in accordance
with state and local codes. The ground connection must be to a proven earth ground, not to
conduits or water popes. An easy – access disconnect switch should be provided.
Ensure that a ground wire from a proven earth ground is connected to the ground lug in the
electrical junction box on this machine. Without proper grounding personal injury form electrical
shock could occur and machine malfunctions may be evident. Computer – controlled machines
must have a proper ground to prevent computer malfunctions.
Always disconnect power and water supplies before a service technician
performs any service procedure. Where applicable, steam and / or compressed air
supplies should also be disconnected before service is performed.
1.8 AC INVERTER DRIVE
Machines equipped with AC drives require special attention with regard to the operating
environment.
1. An especially dusty or linty environment will require more frequent cleaning of the AC drive
cooling fan filter and of the AC drive itself.
2. Power line fluctuations from sources such as an interruptible power supplies (UPS) can
adversely affect machines equipped with the AC drive. Proper suppression devices should be
utilized on the incoming power to the machine to avoid problems.

IMPORTANT INFORMATION
1-5
3. A clean power supply free from voltage spikes and surges is absolutely essential for machines
equipped with the AC drive. Nonlinear inconsistencies (peaks and valleys) in the power can
cause the AC drive to generate nuisance errors. If voltage is above 230V for 200V installations
or above 440V for 400V installations, a buck / boost transformer is recommended. If voltage is
above 240V or 480V, a buck / boost transformer is required unless the factory advises
differently.
4. Sufficient space to perform service procedures and routine preventive maintenance is especially
important for machines equipped with AC drives.
1.9 MACHINERY MISUSE
Even though this machine is an atmospheric vessel, never use it for any purpose other than
washing fabrics.
1. Never wash petroleum – soaked rags in the machine. This could result in an explosion
2. Never wash machine parts or automotive parts in the machine. This could result in serious
damage to the basket.
3. Never stone wash in the machine. It could wear the basket and serious damage might occur to
the machine.
4. Never use the machine for dying and with harsh chemicals that can cause corrosion and other
health hazards.
5. Never allow children to play on or around this machine become trapped in the machine. Do not
leave children unattended while the machine door is open. These cautions apply to animals as
well.
1.10 THEORY OF OPERATION
The HARDMOUNT Series washer – extractors use a single – speed motor to drive the
cylinder via V – belts in all speeds. The cylinder is supported by two spherical roller bearings
located in a bearing housing made of cast iron.
The motor is controlled by the computer control located in the front and the AC inverter
drive located in the rear panel. Any speed can be programmed for any wash cycle. Some speed
ranges are blocked out for programming due to safety reasons. These speed ranges are ones that the
machine cannot operate at due to its spring or suspension resonance. This speed range is not
important and normal speeds for wash or extraction are not within this range. Any wash speed in the
range of 3 – 50 RPM and extraction speeds 150 – maximum RPM can be programmed. Further, any
reversing action can be programmed. Normal reversing action is 16 seconds forward, pause for 4
seconds, and 16 seconds reverse. Any temperature between 70 °F to 200 °F (20 – 95 °C) can be
programmed. Any water level in the range of the machine parameters can be programmed in
centimeters. The computers will automatically provide safety levels for steam injections and door
operations.
Water entry into the machine is through electromagnetic water valves controlled by the
computer. The computer also controls the drain, supply dispenser, any external liquid supplied,
steam injection and any other vital functions of the wash program. The computers can even record
cycles and data of importance that could be used for maintenance purpose.
The steam, if installed is injected in the bottom of the shell via a steam injector. The steam is
controlled by a steam valve that is programmed by the micro computer.
The cylinder is perforated, allowing water to pass through and drain from within during
drain and extract steps. Lifting ribs inside the cylinder lift the load from the wash solution and allow

IMPORTANT INFORMATION
1-6
the load to tumble and falling back into the solution when the load reaches the approximate
10 – 11 o’clock or 1 – 2 o’clock positions. This mechanical action removes soil from the fabric.
Furthermore, the lifters are perforated on the top so that water can cascade over the goods and wet
them quickly. This reduces water consumption as water is picked up at the cylinder’s lowest point
and lifted and splashed over the goods at the highest point as the cylinder rotates.
A stainless steel door is provided for loading and unloading. A door lock system prevents
operation of the machine when the door is open. The door is locked during operation utilizing an air
cylinder and a manual latch for safety reasons. The door lock is provided with magnetic sensor to
indicate that the machine is locked and provide for start of the machine when the door is closed and
locked.
The AC drive, contractor, circuit overload protectors, input power supply connections,
external supply connection, and control transformer are behind a cover of the rear of the machine.
Pneumatic controls together with the air pressure regulator for the door seal are also located here.

SPECIFICATION/COMPONENT IDENTIFICATION
2-1
SECTION 2
SPECIFICATIONS / COMPONENT IDENTIFICATION
DELIVERY INSPECTION
Upon delivery, visually inspect crate, protective cover, and unit for any visible shipping
damage. If the crate, protective cover, or unit are damaged or signs of possible damage are evident,
have the carrier note the condition on the shipping document before the shipping receipt is signed,
or advise the carrier of the conditions as soon as it is discovered.
Remove the crate and protective cover as soon after delivery as possible. If any damages
discovered upon removal of the crate and/or protective cover, advise the carrier and file a written
claim immediately.
A record of each machine is on file with the manufacturer. The serial number decal is
located at the rear of the machine. Always provide the machine’s serial number and model number
when ordering part or when seeking technical assistance.
NOTE: Keep the manuals, installation instruction and the wiring diagrams which
accompany the machine in a safe place for ready reference. They have been
included with the machine at no charge. Additional copies are available at a
nominal charge.