Hobart EF 40 Owner's manual

EF 40/CHF45
Installation & Operation
9

2
INDEX EF 40
GENERAL INFORMATION........................................................
KNOWING YOUR MACHINE.....................................................
INSTALLATION..........................................................................
OPERATING AND MAINTENANCE..........................................
SOLUTIONS ..............................................................................
Description Page
3 - 4
5
6 - 11
12 - 18
19 - 23
NOTE: Model EF 40 - spec machines
are fitted with Drain Pump and Detergent pump as standard

GENERAL INFORMATION
Page3
GENERAL INFORMATION
FAILURE TO RESPECT THE INDICATIONS BELOW MAY COMPROMISE THE SAFETY OF
THE MACHINE AND CAUSE THE GUARANTEE TO LAPSE IMMEDIATELY.
1. Layout of information
The warnings contained in the machine's documentation include instructions that are
important for the safety, operation and maintenance of the machine. In order to obtain
maximum safety, cleaning power and functioning at all times, it is advisable to keep all the
documentation carefully near the machine, and to let technicians and those operating the unit read it.
I. Manual
This manual is broken down into various parts and is designed to provide instructions for the
machine's entire lifecycle, including:
a) section for the user:
• operating and maintenance
II. Technical Documentation
In addition to this manual, the following documentation is also supplied with the machine:
• wiring diagram
−
2. General
The quality of this machine is ensured by the materials used, its being built in accordance
with CE safety directives, and complete testing of each unit.
• Observation of the suggestions made in this manual is essential to the safety of the user.
• The manufacturer, point of sale and authorised assistance centres can be contacted to provide
clarity on any doubt you may have concerning operating and installing the machine.
• The manufacturer reserves the right to make any changes deemed necessary to improve the
machine, without notice.
B
EF 40

GENERAL INFORMATION
Page4
3. Important warnings
This machine is designed for professional washing of batches of dishes. Despite every effort having
been made by the manufacturer to make it simple to operate, install and maintain, it is still intended
for use by trained personnel working in accordance with the manufacturer's instructions. Children
should therefore be kept away from the machine.
Failure to respect the manufacturer's instructions in the documentation supplied with
the machine may compromise the safety of the machine and cause the guarantee to lapse
immediately.
THE MANUFACTURER ACCEPTS NO RESPONSIBILITY FOR DAMAGE TO PEOPLE OR
PROPERTY RESULTING FROM FAILURE TO OBSERVE THE INSTRUCTIONS GIVEN.
THE FOLLOWING IS EXPRESSLY FORBIDDEN:
• Installation or deinstallation, maintenance, setting, repairs or any action requiring the removal of
the protective panels not carried out by trained, authorised personnel in accordance with the
manufacturer's instructions. Such personnel must, in any event, always disconnect the electricity
and water supply to the machine before starting work and take all the necessary precautions when
bypassing the safety devices fitted by the manufacturer.
• Faulty or provisional installation or any situation that does not include adequate safety of the
electricity supply (e.g. fuses, main switch, EARTHING) and water supply (e.g. tap or waste
syphon).
• Modifications or additions to devices that change the way the machine works.
• Use of pirate parts.
• Installation or storing under conditions that do not comply with the manufacturer's indications.
• Use of the machine to wash dishes that differ in type or size from those indicated.
• Use of dosage units with incorrect, impure or dry products.
Repairs must only be carried out by trained, authorised technicians.
We strongly advise against the use of detergents and rinse aids (using the dispensers
supplied or kits) that are of a concentration other than that recommended (see “Chemical products
for washing and rinsing” section, in the OPERATING AND MAINTENANCE chapter).
EF 40

KNOWING YOUR MACHINE
Page5
KNOWING YOUR MACHINE
1. Control Panel
[1] = Machine ready LED
[2] = Cycle start button
[3] = Cycle selection button
[4] = Machine ON LED
[5] = Line button
[6] = Cycle 1 LED
[7] = Cycle 2 LED
[8] = Cycle 3 LED
[9] = Infinite cycle LED
[10] = Regeneration LED
[11] = Drain cycle LED
[12] = Tank thermometer
[13] = Boiler thermometer
[14] = Indication (green dot) of “coils heating”
2. Installation data
Some of the data required for installing the machine correctly can be found on the data plate on the
unit itself. A copy of the data plate is shown on the cover of this manual for quick reference.
Correct installation is essential for this machine to work properly. Installation must only
be effected by trained, authorised technicians.
3. Training the user
The personnel responsible for the installation must also provide adequate instruction for
users on how the plant operates, and on the safety measures to be adopted. They must also
provide practical demonstrations on how to use the machine and check that all the documentation
supplied with the machine is kept near the machine itself.
It should be remembered that, for maximum lifespan and performance, the machine must be used in
accordance with the operating instructions. These must be kept carefully, and particular care
must be taken with maintenance (routine, periodic and special) and the machine must be sanitised
from time to time using non-corrosive, commercial products.
EF 40

INSTALLATION
Page6
INSTALLATION
THE MANUFACTURER ACCEPTS NO LIABILITY FOR ANY DAMAGE TO OBJECTS OR
PERSONAL INJURY ARISING FROM INSTALLATIONS WHICH FAIL TO COMPLY WITH
THE INSTRUCTIONS PROVIDED.
1. Glossary
In this document, the terms Main switch, water supply stop cock and Drain line are defined
as follows:
MAIN SWITCH:
Must be of the type which disconnects all conductors of the supply circuit including the
neutral, with a distance between the open contacts of at least 3 mm, incorporating a thermal
magnetic circuit breaker or fuses, to be sized or calibrated in accordance with the power rating
indicated on the appliance data plate.
The main switch must be located near to the installation and must serve only one machine.
WATER SUPPLY STOP COCK:
This must be a slide, ball or gate stop valve capable of rapid and complete shut-off of the water
supply, of sufficient dimensions to ensure the flow rate and pressure indicated on the machine data
plate.
If the water supply pressure exceeds the prescribed maximum, a pressure regulator must be installed
upstream of the machine. If the supply pressure is below the prescribed minimum, a pressure
booster pump must be installed upstream of the machine.
If the temperature of the incoming water is below the recommended minimum, additional steps
must be taken to obtain good washing results (see chapter “USE AND MAINTENANCE”)
The stop cock must be installed on the water supply pipe near to and immediately upstream of the
appliance.
DRAIN LINE
Must comprise an open trap of sufficient dimensions to discharge at least double the required
supply flow.
It must be installed within reach of the discharge pipe supplied with the machine without this being
subject to tension, kinking or joints.
EF 40

INSTALLATION
Page7
2. Unpacking the appliance
Before removing the packaging, check for any signs of damage, noting any defects found on the
carrier’s delivery note
After removing the packaging inspect the appliance for signs of damage; if damaged, notify your
dealer by fax or registered post immediately and, if the damage is such as to compromise the safety
of the machine, do not proceed with the installation until the appliance has been checked by a
qualified technician.
Packing materials (plastic bags, expanded polystyrene, nails, etc.) must not be left within
reach of children and pets as they potentially very dangerous.
3. Positioning Ensure that there are no objects or materials near the
installation site which could be damaged by water vapor or
splashes of detergent solution which might be produced by the
machine during operation.
The appliance must be leveled using the four adjustable feet so
that it is perfectly stable; any other type of installation must
be agreed and approved by the manufacturer.
4. Connections
I Electrical supply
A Main Switch must be provided for connection (see “Glossary”).
There must be an efficient EARTH CIRCUIT to which the
machine is to be connected.
Do not use adapters, multiple sockets, cables of insufficient
cross-sectional area or with extension connections which do not
comply with specifications prescribed by EN 60335-1 and EN
60335-2-58.
• The electrical power supply must be compatible with the indications on the data plate. For
details on electrical operation consult the electrical circuit diagram.
• The supply cable must not be pulled or crushed during normal operation or routine
maintenance.
• The equipotential bonding terminal fixed to the body of the machine must be connected in
accordance with the requirements of standards EN 60335-1 and EN 60335-2-58 (using a cable
with a cross-sectional area of between 2.5 and 6 mm2)
EF 40

INSTALLATION
Page8
II Water supply
A water supply pipe with a “Stop cock” (see “Glossary”) must be provided for each machine.
The water supply line must conform to the specifications indicated
in the section “Installation data”, even when other appliances are
connected to the supply line.
If the water supply system is new or has not been used for a
prolonged period, run the water before connecting the
appliance so as to eliminate any impurities or air pockets which
could soil or damage the machine.
Connect the filling solenoid valve to the stop cock with a flexible
pipe.
III Drain line
A suitable “Drain line” must be provided (see “Glossary”).
To ensure unrestricted discharge the pipe must reach the trap without being put under tension,
kinked, crushed, pressed or forced.
Drain Pump is standard on model EF40
If the discharge pipe is connected to a trap in the floor, the
highest point of the pipe must be at least 300 mm above floor
level to prevent the machine from emptying.
The highest point of the discharge pipe should be less than 1
meter above floor level.
EF 40

INSTALLATION
Page9
5. Dispenser settings
I Rinse-aid dispenser
Before starting the washing cycle, the dispenser and the delivery
pipe must be full.
Check that there is sufficient rinse-aid in the container and top up
if necessary.
The rinse-aid container must never be allowed to empty
completely and must not be topped up with corrosive or impure
products.
The warranty does not extend to any damage arising from incorrect use of the dispenser.
The dispenser is not factory-set; the dispenser must be calibrated by a qualified technician.
The dispenser is calibrated by adjusting a screw which is
accessed by removing the front panel under the wash chamber
door.
With the panel removed, without pulling the connection pipe, fill
the delivery pipe with rinse-aid, and then fully close the adjuster
screw, without forcing.
To determine the dosage for the preliminary setting, refer to the
information provided by the product manufacturer.
Once you have determined the required dosage, open the adjuster screw until this quantity is obtained.
A) Hydraulic dispenser.
One full turn of the adjuster screw is approximately equivalent to 0.4 grams of product per
operating cycle. The hydraulic dispenser can thus deliver from 0.4 grams/cycle (1 turn of the
screw) up to 3.2 grams/cycle (8 turns of the screw).
These values can only be guaranteed if the rinse-aid container is positioned approximately
40 cm below the level of the machine base. The quantity of rinse-aid dispensed will be increased
if the container is raised and decreased if the container is lowered relative to this position. If the
difference in height between the container and the base of the machine is greater than 80 cm, the
dispenser will not function correctly.
B) Electric dispenser (DB-2)
One full turn of the adjuster screw is approximately equivalent to 0.06 grams of product per
dispenser pulse, given that when fully open (16 turns of the screw), the dispenser delivers 1
gram/pulse. If the machine has 3 pulses per cycle, it can thus dispense from a maximum 3x1=3
grams/cycle (16 turns of the screw) down to a minimum of 0.06x3=0,18 grams/cycle (1 turn of
the screw).
EF 40