EB120
Advanced Ethanol Boiler
Allard Research and Development
Copyright © 2008 – Allard Research and Development, LLC. – All Rights Reserved
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Chapter One : Specifications
Power
Voltage
(V)
Phase
(N~)
1/3
Current
(A)
Dimensions
(W×W×H)
Model
(kw)
EB-120
12.0
230/400
52./17
20"×8.25"×19"
1. Parameters and dimensions of EB-A controller (chart 2)
Model
Timer Range
(minutes)
15-240
Temperature Dimension(mm)
L*W*H
Remarks
EB-A
173 F
5.75"×3.5"× 1"
When the time widow displays ”Long”
the boiler will operate continuously until
it is switched off.
Chapter Two: The EB120 Advanced Ethanol Boiler.
Parts description
No.
1
Part
Description
ElectroMagnetic
solenoid
Automatically controls the beer in
2
3
4
5
Water level probe
Pressure relief valve
Steam outlet
Overheat switch
Detect the water level
Operates if the pressure in the boiler exceeds 1.2kg/ c m2
Steam outlet
Boil dry protector operates at 105℃
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6
Heat element
Heat element
7
Proportional Solenoid
Cooling Water Out
Cooling Water In
Power entry
Automatically controls the cooling water flow
Output that connects to the Still cooling water input
Connections for the cooling water output
The rout of power wire
8
9
10
11
12
Control cable entry
The tout of control cable
Accessorial
board
circuit Connect and control the heat element
13
14
15
16
17
18
19
20
terminal
Connection for power supply
Connection for earth wire
Drain valve
Earth wire plug
Drain valve
Pump
Pump
Beer in
Connect to pump for beer iput
Exhaust valve
Exhaust valve
Drain outlet
Main circuit board
Outlet for drain
Control center
Parts description of EB-A controller.
No.
1
Part
Description
On/Off
Pump
Turns the system On and Off
Operates an external (user supplied) pump
2
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3
Drain Control
Operates Drain, and used to set Cooling Water Flow Rate
Preset Run Time and Distillation Control Temperature
Increase button
4
Set
5
△
6
▽
Decrease button
7
C/F & Enter
Enter Key. Also change from Fahrenheit to Centigrade
Displays the remaining time of the boiler operation
Displays the detected temperature of distillation column
Beer Input pump operating
8
Time display
9
Temp display
10
11
12
L1
L2
L3
Cooling water inlet in operation
Indicator LED for draining green is for auto drain, red is for
manual drain
13
14
L4
L5
Overheat Indicator
Tank Overheat Indicator. Red means the boiler was cut off
as the heating elements are too hot (usually because of a
lack of beer input)
15
16
L6
L7
Cooling water proportional valve operation indicator
Indicates the detected temperature is lower than the preset
temperature and boiler is heating.
17
L8
Indicates the detected temperature is higher than the
preset temperature and the boiler is in idle mode.
Chapter Three: Installation
★ Disconnect all power before installation.
★ If the boiler is installed in an inaccessible place, ensure that the electrical power, beer supply, and
water supply can be easily turned off in an emergency.
★ The minimum water inlet pressure is 3.6 psi (0.25 bar) and the maximum is 30 psi (2 bar), for
pressures in excess of this, use an inline pressure regulator before connecting to the boiler system.
★ The steam pipe from the boiler to still should be kept to a minimum, pipes longer than 10 feet (3
meters) should be insulated to prevent heat loss. Steam pipes will be hot during use and must be
protected against accidental contact.
★ Keep the number of right angle bends to a minimum and ensure that the run of does not create a
trap into which condensate would gather and cause a blockage (i.e. the pipe must not go down and
then up).
★ There must be no valve or other blockage in the steam pipe
★ The steam pipe should be metal of other material that can withstand a constant 350 degrees F
(150°C) temperature. Stainless Steel or Copper pipe is recommended. Do not use pipe that can rust.
★ Do not permanently install the EB120 system outdoors. It can be used outdoors, but must be stored
inside and protected from the weather. The unit is not weatherproof.
★ Do not use the EB120 inside your house. A garage with the door open is fine, but never inside the
living area.
★ The EB120 should be level side-to-side and front to back and should be installed so that the arrows
on the case point up.
★ Do not install or operate the EB120 in close proximity to flammable or hazardous substances.
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Beer, Water, and Steam connections
a. The water supply pipe and steam pipe should comply with local standards.
b. Connect the cooling water inlet of the EB120 to the main water supply using a flexible hose with
3/4-inch fittings. Washing machine connection hoses are perfect for these connections, as they are
made to withstand high pressure without bursting. We recommend braided stainless steel washing
machine hoses, available at your local building supply store.
c. Connect the Cooling Water Out to the water input of the distillation. These connections should also
be made with either rigid copper pipe (at least ½ dia), or flexible washing machine hoses.
d. Steam outlet (3/4 inch) use the same dimension Stainless Steel or Copper pipe to connect to the
Distillation Column. During use the steam pipe will be very hot and must be protected against
accidental contact. Note that according to the location it may be necessary to attach an additional
length of pipe to the pressure relief valve in order to divert the steam flow to a safe direction should
the valve operate.
e. Connect the drain outlet to a suitable drain via a copper pipe with the appropriate fittings.
Installation of controller and temperature probe.
EB-A controller is waterproof and can be installed anywhere within close proximity of the distillation
system.
(1) Ideally the control panel should be installed at a height of approximately 5’for ease of use.
(2) Installation method: drill a 1.5”(40mm) hole on mounting surface. Open the front cover of steam
EB120 and connect the control cable (6 pin) and temperature sensor cable (2 pin) to the relevant
ports.
(3) Control panel installation: connect one end of the control cable to circuit board port in the boiler, and
connect the other end to the controller.
(4) Temperature probe installation: the temperature probe is installed into the distillation column at the
control temperature point. This varies according to the size and type of still being used. This probe
would be installed in the location normally used for a dial thermometer. The temperature probe has
½”male FIP fittings.
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EB120 Temperature Probe
Installations of power supply and control cables
1. Confirm the correct voltage of power supply and wires.
2. Remove the knock out for the power cable entry and use a rubber grommet to protect the cable,
connect to the conductors to the correct terminals – for single phase power supply use the copper
bridge connectors, for 3 phase supply remove them.
3. Remove the knock out for the control cable entry and use a rubber grommet to protect the cable,
connect the cable to the relevant port on circuit board.
4. Ensure the power supply wire and control cable remain separated to prevent magnetic field of power
supply wire from disturbing control cable signal.
For typical electrical connection in single-phase 220-volt operation, bridge the L1, L2, and L3 terminal
connections together, and connect the AC Hot wire to one of the L connections. Next, bridge the 3
neutral (N) terminal strips together and connect the AC neutral to one of the N connections. Last,
connect the electrical ground to the ground terminal on the EB120 case.
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EB120 Circuit Board
Chapter Four : Testing and operation
(1) Once the installation has been completed and checked, turn on power and water supplies and carry
out the following test.
(2) On the control panel press the on/off key, (the key has a time-lapse function, press it for I second),
the time and temp displays the data.
(3) Turn on your valve(s) to allow beer to flow to the boiler. The indicator LED is red on the remote. The
internal pump will begin filling the boiler with beer. When the beer level rises to the low beer level
sensor level the elements switch on and the heating indicator LED turns on. Several seconds later
when the high beer level sensor is reached, the internal pump will stop, and the indicator LED
changes to green.
(4) After a few minutes of heating, the unit will begin producing steam.
(5) Press the on/off key again to turn off the system. There will be no data on display and the boiler will
stop.
(6) Press the on/off key once more (temp and time display again), and after a few seconds the boiler will
begin producing steam again. Let the boiler operate for a short while - the beer level will fall to the
low beer level. Check that the internal pump automatically starts (the pump indicator LED (L1)
becomes red). The pump indicator LED will go back to green when the boiler tank is full.
(7) The time display counts down to show the remaining time, when it reaches 0 the boiler will stop
heating. The run time can be adjusted, or overridden to run continuously.
(8) 5 minutes after the system has been turned off, it will automatically go into the drain-down cycle. The
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drain valve opens (drain indicator LED green).
(9) You can also drain the boiler manually by pressing the drain key when the system has stopped
heating. The drain indicator LED will indicate as red during this operation.
(10) Once you have set the temperature required, the boiler will operate on all heating elements until the
temperature is 4 degrees below the target temperature. Once the system is in full operation, the
computer maintains the boiler temperature and it will selectively turn on or off heating elements as
required. This approach helps to minimize the power consumption during operation.
(11) The pump switch on the remote operates a relay on the EB120 circuit board. This can be used to
control an external pump in your system. The maximum voltage that can be used through this relay
is 120V, 5A.
(12) Use the Enter key to change the temperature display between ℃ and ℉ and also to confirm the
time and temperature setting.
Setting Time and Control Temperature
When the EB120 leaves the factory the default settings are 173 degrees Fahrenheit and 4 hours of
operation. These can be adjusted as follows;
(1) Time setting : press “set” key – the time display will flash - press “△”,”▽” to adjust the time,
each press will increase or reduce 5 minutes. Once the desired setting is reached, press “enter” to
accept, and the time display will stop flashing. You can adjust from the time from 15 to 240 minutes,
or operate the unit with no time limitations or continuously. Note the controller has a memory
function, and if the power cord is not disconnected, the next time you turn on EB120, the time you
selected will be the default time.
(2) Temperature setting: if you press “set” once after you finish setting the time or otherwise twice the
temperature display will flash, enter the required temperature by pressing “△”,”▽” to adjust -
every press will increase or reduce 1 degree. Once the required temperature has been set, press the
“enter” key and the temperature display will stop flashing.
Steam on Demand function
To activate the steam on demand function, first preset the desired control temperature as described
above, then press and hold the drain key for 5 seconds, L4 will turn red and the time displays “LONG”
indicating that steam on demand is operational.
Once the steam on demand function has started, the unit will operate for 30 minutes, and then stop until
the function is started again.
Note that the auto drain function will operate every time the steam stops.
Adjusting the water flow control for the cooling coils in your distillation column
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The water flow control can be fine tuned to help tightly control the specific characteristics of your
particular still, and can help regulate varying input water pressures. There are four different presets
that can be chosen for use during operation.
To change the water flow rate control, turn on the EB120, and press and release the Drain key on the
remote. The Temperature Display will flash and show one of four pressure settings; 1PS, 2PS, 3PS,
4PS.
Press the Drain key one or more times to cycle through the four choices. When you see the selection
you want, press the Enter key to confirm. The Temperature display will stop flashing and return to
displaying the temperature reading of the still.
Finally, you MUST now press the On/Off button and turn the EB120 off, then press the On/Off button
once more and turn the unit back on. These steps are required to store the new setting, and to prevent
accidental changing of the water flow rate to the still.
Chapter Five: Troubleshooting guide
Please note that we recommend all repairs are carried out be a suitably qualified person.
Trouble description Possible Cause
Solution(s)
When the boiler is
turned on there is
no display on
Check:
1. Power supply
1. Check power supply voltage.
2. If the indicator LED of power supply isn’t on,
then check transformer or power supply.
3. If the LED remains red, remove the controller
turn off, reinstall the controller, and restart.
4. Change circuit board
2. Transformer
3. Main circuit
board
control panel.
4. Controller
5. Control cable or 5. Check the control cable port and controller.
port
System appears to
be turned on, but
the boiler is not
heating.
Check:
(1) Indicator LED for beer level is red. Check beer
input supply
1. Beer supply.
2. Beer pump
(2) Check the connection of water level probe.
(3) Check ground wire connection of circuit board
and boiler.
operation.
3. Water level probe
4. Main board
5. Ground wire of boiler
and circuit board
6. Heating control
board
(4) Indicator LED for beer level is green. Check
circuit board
(5) Check if overheat switch is disconnected
(6) Check heating elements
7. Heating elements
EB120 is turned on, Check:
Possibly need to:
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control panel is
normal, and
1. Main circuit board
2. Relay circuit board
3. Heating elements
* Change main circuit board
* Change relay circuit board
* Change heat elements
indicator LED for
heating is on, but
there is no steam
output
Temperature
displays “LC”
Check:
Check connection or change beer level probe.
Beer level probe
connection
Temperature
displays “HC”
Beer level probe detects 1. Check beer level probe connection
a short circuit
2. Check controller for short circuit
Turn off EB120, and Check the proportional
1. Try turning the system on and off again, or
disconnect the system from the power
connection, and reconnect.
cooling water
solenoid control valve
continues to flow
through the system.
2. Check proportional valve. Clean it or change it
Unplug from power Check:
Change circuit board or water inlet valve
supply, and cooling 1. Water inlet valve
water continues to
flow through the
system.
2. Circuit board
Turn off EB120, but Check:
Unplug or disconnect the unit from power.
DO NOT CONTINUE TO USE WITHOUT FIRST
CONTACTING YOUR DEALER!
it continues to
operate.
f. Circuit board
g. Controller
h. Relays on accessory
circuit board
i. Water level probe
Chapter Six: Regular Use and Maintenance
The single biggest problem with boilers is the build up of scale resulting from dissolved solids within the beer.
Scaling can cause the heating elements to fail, the beer level sensors not to function, and premature failure of the
O-rings resulting in leaks from around the elements. The extent of the problem will vary according to the degree
of impurities in the beer.
* IMPORTANT NOTICE: DO NOT ATTEMPT TO RUN ANY MASH OR LIQUID WITH SUSPENDED
IMPURITIES DIRECTLY THROUGH THE EB120 WITHOUT FIRST STRAINING AND FILTERING.
DOING SO WILL CLOG THE BEER PUMP, SOLENOID VALVE, AND BOILER, AND WILL VOID
YOUR WARRANTY. WE RECOMMEND PRE-SCREENING WITH A FINE STAINLESS STEEL
SCREEN, THEN FILTERING WITH AT LEAST A 10-MICRON FILTER BEFORE ALLOWING YOUR
BEER TO BE PUMPED INTO THE EB120.
We also recommend descaling the boiler once every 50 to 100 hours of operation. To descale use a solution of
weak acid crystals (such as citric acid) mixed with water. Citric acid crystals are available in packets for descaling
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kettles from most hardware stores, brew supply stores, and are available online from Allard Research and
Development. Follow the instructions supplied with the crystals and allow sufficient time for the solution to
dissolve the scale before flushing out the boiler.
System faults arising from a failure to descale the unit are not covered by warranty.
Because heating and cooling cause expansion and contraction, it is important to inspect all the water and steam
inlets and outlets as well as their pipes and connectors on a regular basis to ensure there are no leaks. The
condition of the wiring and electrical integrity of the boiler system should be checked regularly.
Warranty
The EB120 has a one-year warranty from the date of purchase. This warranty excludes consumable items such as
the electrical heating elements. Failures resulting from misuse or abuse, such as a failure to descale as above, or
using beer that has not been adequately strained and filtered, are not covered under the warranty.
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