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Installation:
Water:
Connect
water supply to magnet valve with 3/8 RG. Connect water outlet to discharge
branch 3/4 RG. Both connection points are marked at the bottom of the machine.
The
water outlet must NOT be closed as this may generate excess pressure in the
water jacket and risk damaging the machine.
Electric
Power
Check
that the main switch ‑5‑ is off. Then mount supply cable according
to enclosed colour code schematic diagram. The direction of the stirrer will be
confirmed later.
Gear
The
gear has been filled up with oil. Dismount the filler plug and mount the
enclosed air‑escape valve. Maintenance of the gear, see later in the
manual.
MOVING
THE MACHINE
In
case you need to move the machine once it has been set-up, or after a period of
time, please read the following:
Make
a note of the thermostat settings and set them to zero.
Disconnect
from the electricity supply.
Disconnect
the supply pipes and the waste pipes. There is a considerable amount (weight) of
water in the machine. If you want to drain the water you can either remove the
drain plug on the underside of the machine, or carefully remove the inlet valve
complete (as the valve defaults to the closed position with no electricity
supply).
Starting-Up:
As
this machine operates as an automatic system, it is important to apply the
following start‑up procedure accurately.
If
the event of the Water Jacket ever being emptied, then this procedure would have
to be repeated. (It does not have to be repeated otherwise.)
1.
Open the water supply to the machine.
2.
Switch on at main switch ‑5‑.
After
several seconds the 2 thermostat displays will settle. The left‑hand one
will show 00. The right‑hand one will display the temperature of the
machine, which should exceed 15°C. If this is not the case, switch the machine
off for a period (allowing it to come up to room temperature) and then switch
on. The yellow light ‑lcshould not light up ‑ if it does, switch
off immediately the main switch. If the yellow light not light up then continue.
Check that the right‑hand thermostat is adjusted to 00. See the manual for
cooling thermostat.
3.
Press black button 2c. The magnetic valve will open and the water runs
into the water jacket. The stirrer will automatically start. (Check that the
scraper blades face forward). Once the direction is ascertained, the stirrer
must be stopped by pressing 4c. (If the direction is not correct, change the 2
phases in the connection cable when the water jacket has finished filling.) The
water jacket will take 5‑10 minutes to fill. When there is water in the
water outlet, filling is complete. Switch the machine off at the main switch 5
and then switch it back on again. This interrupts the water filling, effectively
closing the water inlet.
4.
Included in the manual are instructions for the thermostats. Please be
familiar with these prior to filling the machine with chocolate.
5.
The machine is now ready for use.
Operating
Instructions:
Below
please find directions for the use of the machine.
The
temperatures given here may be varied according the colour and type of chocolate
being used. However we recommend that these be used as a starting point until
the machine has been through the tempering program several times and the
operation procedures are familiar.
Melting:
1.
Ensure the stirrer has stopped. (Auto cut‑out on removal of lid.)
2.
Fill with chocolate until at least 2/3 full.
3.
Set heating thermostat la to 45°C.
4.
When the chocolate is partly liquid, the stirrer may be started.
‑4a‑.
5.
The chocolate temperature may be read on thermometer 3, after the stirrer
has been operating for several minutes.
After
a certain time, the chocolate will give a temperature reading corresponding to
the thermostat setting, i.e. approx. 45°C.
When
chocolate tempering is required, the procedure is as follows:
Tempering:
6.
The stirrer must be on during the tempering process. It will start
automatically. (If for any reason the lid is opened during the tempering process
and/or the stirrer cut‑out operated, ensure that stirring is resumed when
the lid is replaced.)
7.
Set Heating Thermostat la to 31°C.
8.
Set cooling thermostat 2a to 32°C.
(Water cooling temperature will be 12°‑16°C.)
9.
Press black button 2c.
10.
The following will take place:
- The stirrer will start.
-
The
heating will stop.
-
The magnetic valve opens for the cool water. ‑ The temperature of the
chocolate will fall.
-
The magnetic valve closes when chocolate reaches 32°C. ‑ The heating
starts, yellow light lc comes on.
The
chocolate temperature will drop further to approx. 28°29°C. Then the
temperature will raise and sets at 31°C at which point it is ready to use.
It
may register a heat overshoot on 0,5°C. Please note this if any change is made
to the thermostatic programme.
Working
The Tempered Chocolate:
The
Chocolate, when tempered and ready to use, is drained out through the valve at
the bottom of the machine. To prevent clogging, this valve is separately heated
by an electrical wire.
If
tempered chocolate remains in the machine, the stirrer can be left on
continuously or intermittently. Tempered chocolate should not be allowed to
stand still for too long. Timings will vary according to the type of chocolate
and the manufactures' ideal temperatures.
When
the chocolate requires melting again, simply raise the temperature on the
left‑hand thermostat la to 45°C.
DAILY
USE:
The
daily operation of the machine will be as follows:
Adjust
heating thermostat la to 45°C. Fill with solid chocolate or buttons. To
increase the speed of the Melting Process, the stirrer can be put on, however it
is advisable to ensure that the chocolate has at least partly melted, to avoid
jamming the stirrer blades. (see automatic cut‑out). At a minimum
temperature of 40°C (once achieved as a steady read‑out from
well‑stirred, melted chocolate) tempering can be started.
Adjust
heating thermostat la to 31°C.
Press
black button 2c and the chocolate will be ready to use after 45 minutes.
ADJUSTMENTS
Changes
can be made to the thermostats, however it MUST be taken into consideration when
adjusting the cooling temperatures that an overshoot allowance is specifically
required for quality tempering and thus must be allowed for. Adjustments to
heating temperatures for various types of chocolates need to be made
progressively in increments of 0,5°C to get the optimum results from the raw
material being tempered.
AUTOMATIC
CUT-OUT:
If
the stirrer motor is overloaded, it will automatically cut‑out and a red
warning light, 3d, will come on. As long as this light is on, the motor cannot
start. Also in the event of an electrical failure, the motor cut out.
The
stirrer is protected from abrupt overloading by a tapered shear‑pin in the
motor shaft. This can easily be replaced and a spare shear‑pin is
delivered with your new machine.
The
water jacket must always remain filled up. To prevent accidental draining, there
is only one drain plug at the bottom of the machine, the opening of which
requires tools as this step is only necessary under rare circumstances.
If
the event of the water having been drained off, the heating elements must not
heat as this will damage the machine when there is no water in the water
jacket.
THE
EFFECT OF THE WATER TEMPERATURE ON THE TEMPERING:
Changes
in Temperature and Pressure of the cooling water can be the cause of temperature
variations that directly affect the temper of the chocolate.
The
ideal temperature is 15°C, however a range between 12°C and 17°C is
acceptable.
The
flow rate is 9 litres per minute at ordinary pressure.
When
the cooling temperature drops below 12°C, it can cause the
over‑production of crystals in the chocolate. This will effectively 'over
temper' the product and result in lumpy thick chocolate with a low tolerance in
working temperature variation.
When the
cooling temperature is over 17°C, the cooling will take a proportionally longer
time. It can also adversely affect the temper of the chocolate, reducing the
'snap' quality and shine of the finished chocolate.
In
many cases, adjustment to the flow of cooling water will take care of any
differences. If for any reason there are difficulties in achieving these
results, or wider variations in water temperature than can be accommodated by
small adjustments to the appropriate thermostats, then a Mixing Battery is
available. This will ensure that the Water Temperature is constant.
PLEASE
NOTE:
This
machine has a built-in safety-switch in the lid.
It
means that the stirrer stops when you remove the lid. When the lid is put back,
start the stirrer on 4a.
Heating
Thermostat
Manufacture:
ELIWELL type EWPC 800 T.
Is
placed to the left on the control box. 1a on EL diagram: T1.

Operation
of Heating Thermostat:
The
display show the set temperature. Adjustments to be done by pressing “Up” or
“Down”.
LED
indicator shows in which position the thermostat is. “Set” is only to be
used for changing the parameter on the heating thermostat.
By
delivery of the machine the thermostat is adjusted so the lowest possible
set-point is 0°C and the highest possible is 60°C. Set-point is adjusted to 00°C
which is shown on the display when you switch on the machine. If it is not,
adjust to this value. For this thermostat there are the following coded
parameters and these should not be changed, except LS1 and HS1.
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