Brewtools Pro Series User manual

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Service Manual
Disassemble and assemble
heating elements
ENGLISH

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CONTENTS
Introduction
3|7
You need
3|7
Disassembly
4|7
Assembly
6|7

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Introduction
This user guide explains how to disassemble and assemble the heating elements in our Pro-
Series Brewing Systems. Disassembly of the heating elements will at some point be
necessary. You may need to replace the silicone gaskets or replace a faulty element with a
new one. This guide will help you through it.
As the work described in this user guide is
electrical, it needs to be carried out by skilled
technician that can ensure the quality and
electrical safety of the work done. This is due
to the potential risk of electric shock or
overheating in connections that might cause a
fire.
Performing this type of work will require the heat shrink tube to be replaced. Ensure that
you have heat shrink tube at hand before starting this type of work. Recommended size of
heat shrink tube is 10mm (3/8’’) with a 3x shrink factor.
You need
•Sharp knife
•Wrench or spanner
•Heat gun
•Heat shrink tube
•Allen key 1.5mm
•New heating element or gasket depending on intended work to be performed
Before starting, make sure that all power input cables are detached so that the system is
disconnected from the power grid. Also ensure that the heating elements are not hot.

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Disassembly
1. Disconnect all power input cables.
2. Turn the machine upside down to gain access to
heating elements connection points.
Tip: To gain better access to the connection points,
the control box can be detached and temporarily
removed. To do this you’ll need a 3mm Allen key.
3. Use the sharp knife to slice the heat shrink tube from bottom to top. Be careful not
to damage the electrical cord outer stealth. Remove the heat shrink tube to gain
access to the brass connector. Use the provided 1.5mm Allan key to loosen the two
set screws. The electrical cord will then come loose.

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Tip: It is important that the electrical cords are put back at the same place as they were
before the work started. As a help, the electrical cords can be marked with a unique
number (1-4). Similarly, the same unique number can be written on the steel bottom.
This way you’ll be able to fit the electrical cords back where they were before the work
began.
4. When the electrical cord has been removed from the brass connector, loosen the
heating element using a wrench or spanner on the main nut. Remember that when
both nuts have been removed, the heating element can drop down. It is therefore
recommended to hold the heating element while unscrewing the last nut.
5. When the heating element has been removed, it is possible to either replace the
silicone gasket or replace the heating element with a new one. If replacing the
silicone gaskets, it is possible to take the opportunity to give the heating element a
solid scrub or do some mechanical adjustments. The bending radius of the heating
elements might increase slightly over time, - especially if they are run without being
submerged in liquid. Carefully use a suitable tool to decompress the turns to
decrease the overall bending radius of the heating element. Be careful not to overdo
it. Be careful not to scratch the surface of the heating elements.

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Assembly
1. Put the heating element back in place and use a wrench or spanner to fasten the nut.
Remember to refit the earthing ring lug. While fastening the nut, visually inspect the
deforming of the silicone gasket on the inside of the vessel to ensure a good fit and a
leak free connection.
2. Ensure that the brass connectors are
fitted tightly to the heating element. It
should not be possible to turn them by
hand. Use two wrenches or spanners to
tighten the brass connector and the
small nut together to lock it properly. It
is important that the brass set screws
point towards the center of the
machine to enable easy access to the
set screws later. The brass connector
and the small nut should not touch the
ceramic ring.
3. Put a piece of heat shrink tube on the electrical cord and put it into the brass
connector. Ensure that the whole tip of the electrical cord fits into the brass
connector. Use the 1.5mm Allen key and tighten the brass set screws. Pull the heat
shrink tube over the brass connector and all the way down. Use a heat shrink gun to
shrink the heat shrink tube so that it electrically isolates and seal the whole
connection area.

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4. When all the connections are complete, the control box can be refitted (if removed).
Remember that all connectors are clocked and will therefore only fit in one position.
Do not try to fit it using brute force. It is important that tank sensor is plugged into
Sensor 1 socket. The in-line sensor placed on the right-hand side of the machine
(pump circuit) goes into Sensor 2 socket. Return temperature sensor (accessory)
plugs into Sensor 3 socket.
5. If desired, a cable tie can be used to organize the electrical cords.
6. Turn the machine right side up. Fill it with water so that the heating elements are
fully covered. Check that there is no leakage. Tighten main heating element nuts if
necessaray
7. Connect the power cables and put the machine in manual mode. Turn on the heat
and visually verify that small bubbles form on the heating element surfaces as an
indication that both heating elements are working properly.
8. Now the work is completed, and the machine is ready for normal operation.