Cornelius Energize Series Manual

Installation and service manual
Undercounter cooler
Energize 3-5 (R134a)

Legal notice
Installation and service manual (Original)
Document no. TD1005100
Undercounter cooler
Energize 3 (R134a): Unit ID no. 221001300... | 221001302... | 221001305...
Energize 4 (R134a): Unit ID no. 221001400... | 221001402... | 221001404...
Energize 5 (R134a) single: Unit ID no. 221002500... | 221002510... | 221002520...
Energize 5 (R134a) dual: Unit ID no. 221002501... | 221002507... | 221002521...
Energize 3-5 (R134a)
Version
Date of issue: 08/10/2019
Revision status: Index 3
www.cornelius-emea.com Cornelius Deutschland GmbH
Carl-Leverkus-Str. 15
40764 Langenfeld
Germany
Tel.: [phone] / 79 3 – 0
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E-Mail: [e-mail]
Protection notices (in accordance with DIN ISO 16016:2017-08)
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expressly permitted. Violations shall result in an obligation to pay damages. All rights reserved with regard to filing for/registering
patents, utility models or design patents.

Cornelius Deutschland GmbH
Document no. TD1005100
Version 08/10/2019, Index 3
Installation and service manual Undercounter cooler
Energize 3-5 (R134a)
1
Installation and service manual
Undercounter cooler
Table of contents
1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 Improper use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.3 Staff. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.4 Presentation of warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.5 Safety information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.5.1 Safety information to prevent personal injury and equipment damage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.5.2 Safety information for using electrical assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2 Transport and packaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.1 Undercounter cooler Energize 3 (R134a) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.2 Undercounter cooler Energize 4 (R134a) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.3 Undercounter cooler Energize 5 (R134a) single. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.4 Undercounter cooler Energize 5 (R134a) dual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.5 Functions within the dispensing system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.6 Functions of the unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.7 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.7.1 Undercounter cooler Energize 3 (R134a) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.7.2 Undercounter cooler Energize 4 (R134a) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.7.3 Undercounter cooler Energize 5 (R134a) single/Energize 5 (R134a) dual. . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.7.4 Labelling positions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.7.5 CO2working pressures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.8 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.8.1 Undercounter cooler Energize 3 (R134a) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.8.2 Undercounter cooler Energize 4 (R134a) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.8.3 Undercounter cooler Energize 5 (R134a) single. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.8.4 Undercounter cooler Energize 5 (R134a) dual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4 Preparing the unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.1 Disconnecting the unit from power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5 Installation/removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.1 Installation location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5.2 Installing the unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5.3 Removing the unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
6 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
6.1 Maintenance table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
6.2 Cleaning the tubes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
6.3 Changing the water in the water bath. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.4 Cleaning the condenser fins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.5 Bleeding the carbonator tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.6 Thawing the ice build-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7Repairs
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
7.1 Replacing the cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
7.2 Replacing the sheet casing (service) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
7.3 Replacing the connecting plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
7.4 Replacing the agitator motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7.5 Replacing the water bath temperature probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
7.6 Replacing the ambient temperature probe and hot gas sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
7.7 Replacing the circulation pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Cornelius Deutschland GmbH
Document no. TD1005100
Version 08/10/2019, Index 3
Installation and service manual Undercounter cooler
Energize 3-5 (R134a)
2
7.8 Replacing the carbonator pump pressure switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
7.9 Replacing the carbonator pump pressure manometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
7.10 Replacing the carbonator pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
7.11 Replacing the carbonator pump motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
7.12 Replacing the carbonator tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
7.13 Replacing the solenoid valve for the carbonator tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
7.14 Replacing the non-return valve of the solenoid valve for the carbonator tank . . . . . . . . . . . . . . . . . . . . . . . . . . 41
7.15 Replacing the non-return valve for the carbonator tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
7.16 Replacing the level electrode for the carbonator tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
7.17 Replacing the drain valve for the carbonator tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
7.18 Replacing the non-return valve CO2-IN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
7.19 Replacing the CO2pressure switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
7.20 Replacing the temperature probe for the soda water circulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
7.21 Replacing control system 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
7.22 Replacing control system 2 (Energize 5 (R134a) dual only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
7.23 Replacing the fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
7.24 Replacing the starting capacitor for the carbonator pump motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
7.25 Replacing the starting capacitor of the compressor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
7.26 Replacing the starter relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
7.27 Replacing the overload protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
7.28 Replacing the transformer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
7.29 Replacing the transformer fuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
8 Commissioning/shutdown. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
8.1 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
8.2 Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
9 Errors and malfunctions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
9.1 Troubleshooting table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
10 Applicable documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
10.1 Flowchart Undercounter cooler Energize 3 (R134a) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
10.2 Flowchart Undercounter cooler Energize 4 (R134a) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
10.3 Flowchart Undercounter cooler Energize 5 (R134a) single . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
10.4 Flowchart Undercounter cooler Energize 5 (R134a) dual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
10.5 Wiring diagram Undercounter cooler Energize 3-5 (R134a) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Safety
Cornelius Deutschland GmbH
Document no. TD1005100
Version 08/10/2019, Index 3
Installation and service manual Undercounter cooler
Energize 3-5 (R134a)
3
1Safety
1.1 Intended use
By using the unit as intended you will not only protect yourself, but also prevent damage occurring to the unit and its components!
You can find further information about the intended use of the unit in the undercounter cooler operator manual, document no.
TD1005000.
1.2 Improper use
Improper use of the unit and unauthorised modifications to the unit and its components may cause personal injury and equipment
damage for which Cornelius Deutschland GmbH shall assume no liability. Improper use of the unit is prohibited.
You can find further information about the improper use of the unit – and the meaning of improper use – in the undercounter cooler
operator manual, document no. TD1005000.
1.3 Staff
There is a clear definition as to what group of people is permitted to carry out what type of work on the unit. You can find further
information about who is authorised to carry out what type of work on the unit in the undercounter cooler operator manual, docu-
ment no. TD1005000.
1.4 Presentation of warnings
The documents supplied with the unit provide warnings regarding any dangers or hazards that might exist. You can find more in-
formation about the design and presentation of warnings in the Undercounter cooler operator manual, document no. TD1005000.
1.5 Safety information
1.5.1 Safety information to prevent personal injury and equipment damage
Any work on the unit and its components which goes beyond operation and beyond the servicing and maintenance tasks that the
operator is authorised for, may only be performed by experts (for a definition of experts, see the undercounter cooler operator
manual, document no. TD1005000). Furthermore, it is crucial that when performing work on the unit all safety information is ob-
served; this information is set out in the following sections. Some of the tasks may have additional safety information which high-
lights the specific dangers or hazards associated with such work.

Safety
Cornelius Deutschland GmbH
Document no. TD1005100
Version 08/10/2019, Index 3
Installation and service manual Undercounter cooler
Energize 3-5 (R134a)
4
1.5.2 Safety information for using electrical assemblies
DANGER!
To prevent risks to health and safety, please always observe the following five safety rules:
These five safety rules are to be applied before carrying out work on the electrical system and in the order stated
below. Once work is completed, the safety rules are to be undone again in reverse order.
• 1. Disconnect from power.
• 2. Secure against reconnection.
• 3. Check that the system is disconnected from power.
• 4. Ground and short-circuit the system.
• 5. Cover or separate adjacent live parts.
WARNING!
Risk of burns when touching hot parts of the unit!
Touching parts of the unit after it has been in continuous use over an extended period of time will result in a risk
of burns.
• Take appropriate safeguard measures, such as by wearing heat-resistant protective gloves.
DANGER!
Risk of poisoning and risk of explosion due to improper handling of CO2cylinders!
Risk of death from CO2!
• Observe all information on occupational safety for the safe operation of dispensing systems as applicable
in the relevant country of installation.
NOTICE!
• Make sure that the cable markers are not removed from the cables and/or mark or label the cables such
that they can be correctly assigned during installation.
ATTENTION!
Cables must be fixed in place using cable ties.
When fixing cables in place using cable ties, observe the following points:
• Once work on the unit is completed, return the area to the same state that you found it in.
• Using cable ties, combines cables in a meaningful way.
• When installing cables, be mindful of any bending radiuses that the manufacturer may have specified.
• To fix cables in place using cable ties, use the mounting bases provided.

Transport and packaging
Cornelius Deutschland GmbH
Document no. TD1005100
Version 08/10/2019, Index 3
Installation and service manual Undercounter cooler
Energize 3-5 (R134a)
5
2 Transport and packaging
Choose a suitable packaging when returning the unit itself or one of its components to Cornelius Deutschland GmbH, e.g. for re-
pairs. In particular, make sure that the unit and any components are protected from shock/impact, moisture, dirt and electrostatic
discharge (ESD). This will prevent transport damage to the unit and to the components, for which the manufacturer shall assume
no liability.
ATTENTION!
Component damage due to freezing liquids!
Ambient temperatures that are below freezing will lead to the freezing of any water or cleaning agent residue
remaining inside the unit. This will lead to damage to internal components.
• Before shipment, storage or relocation of the unit, the unit is to be cleaned and the cleaning solution is to
be fully drained from the unit.
2.1 Storage
Avoid excessive temperature fluctuations as condensate may form, which in turn may cause damage to the unit or to the compo-
nents.
The permissible storage temperature is -10 °C to +50 °C.
The acclimatisation period is 6 hours.
ATTENTION!
Damage due to improper storage!
Dirt or moisture entering a unit, as well as certain weather conditions (e.g. condensate forming in the unit, sun-
light) will cause damage to the unit and its components.
• Protect the unit and its components by storing the unit in a clean and dry place, and by ensuring stable
ambient conditions.
• If possible, store the unit in its original packaging. Unpacked units must be covered with a dustproof cover.
No condensate must form under the cover.
ATTENTION!
Risk of electrostatic charge!
Improper handling or storage may result in electrostatic charges.
• If possible, store units and/or any electronic components in their original packaging.
• Keep units and/or electronic components away from charged objects, fields and insulators.
• Avoid electrostatic charges when removing packaging and/or handling electronic assemblies and compo-
nents by working at an ESD-protected workstation or work area.
• When working at the unit or its components, wear a grounding (antistatic) wrist strap at the very least and
wear antistatic gloves if necessary.
ATTENTION!
Component damage due to material ageing!
Material can age due to long storage periods, thereby affecting the material’s properties (e.g. plastics and seals
may become brittle). The properties of lubricants may change due to long storage periods.
• Check the assemblies and components for damage before each use/before installing them. Do not install
assemblies or components that show visible signs of ageing.
2.2 Disposal
Disposal of the units must be carried out in compliance with the applicable local and/or national and international regulations. Units
must not be disposed of with household waste.
If the unit contains fuels or lubricants in liquid, paste-like or gaseous form, such as oil, grease, cooling agents etc., such fuels or
lubricants are to be collected using appropriate measures and disposed of in compliance with the applicable local and/or national
and international regulations. Such fuels or lubricants must always be prevented from seeping into the ground, the sewage system
and any bodies of water, and must always be prevented from entering the atmosphere.

Description
Cornelius Deutschland GmbH
Document no. TD1005100
Version 08/10/2019, Index 3
Installation and service manual Undercounter cooler
Energize 3-5 (R134a)
6
3 Description
3.1 Undercounter cooler Energize 3 (R134a)
The unit comprises the following assemblies:
Fig. 1
Fig. 2
1 2 3 54 987 10 11
12
1314
15161718
6
1 Carry handles
2 Control and indicator panel
3 Circulation pump
4 Pressure manometer for carbonator pump
5 Carbonator pump
6 Cover
7 Water inlet valve
8 Run capacitor for carbonator pump motor
9 Carbonator motor
10 Control system 1
11 Water level gauge
12 Sheet casing (fixed)
13 Water bath
14 Condenser
15 Fan
16 Refrigerant compressor
17 Water bath overflow
18 Sheet casing (service)
1
2 3 456 7 8
9
10
11
12
1 Carry handles
2 Connecting plate with tube connections
3 Agitator motor
4 Cover
5 Transformer
6 Circulation pump motor
7 Pressure manometer for carbonator pump
8 Circulation pump
9 Sheet casing (service)
10 Refrigerant compressor
11 Carbonator tank
12 Sheet casing (fixed)

Description
Cornelius Deutschland GmbH
Document no. TD1005100
Version 08/10/2019, Index 3
Installation and service manual Undercounter cooler
Energize 3-5 (R134a)
7
3.2 Undercounter cooler Energize 4 (R134a)
The unit comprises the following assemblies:
Fig. 3
Fig. 4
1234 5 67 8 911
10
14
15
161718
12 13
1 Carry handles
2 Sheet casing (service)
3 Control and indicator panel
4 Circulation pump
5 Carbonator pump 2
6 Carbonator pump 1
7 Run capacitor
for carbonator pump motor 2
8 Run capacitor
for carbonator pump motor 1
9 Carbonator pump motor
10 Cover
11 Control system 1
12 Agitator motor
13 Carbonator tank
14 Water level gauge
15 Sheet casing (fixed)
16 Condenser
17 Fan
18 Refrigerant compressor
12
34 5 6 7
9
1011
8
1 Carry handles
2 Sheet casing (fixed)
3 Connecting plate with tube connections
4 Agitator motor
5 Cover
6 Transformer
7 Circulation pump motor
8 Circulation pump
9 Sheet casing (service)
10 Refrigerant compressor
11 Water bath

Description
Cornelius Deutschland GmbH
Document no. TD1005100
Version 08/10/2019, Index 3
Installation and service manual Undercounter cooler
Energize 3-5 (R134a)
8
3.3 Undercounter cooler Energize 5 (R134a) single
The unit comprises the following assemblies:
Fig. 5
Fig. 6
123 4 5 6 8 9 10
1415 13 12 11
7
1 Carry handles
2 Control and indicator panel
3 Circulation pump
4 Carbonator pump 2
5 Carbonator pump motor 2
6 Carbonator pump 1
7 Cover
8 Carbonator pump motor 1
9 Control system 1
10 Sheet casing (fixed)
11 Water bath
12 Condenser
13 Fan
14 Refrigerant compressor
15 Sheet casing (service)
1
2 3 4 5 6
8
911
7
10
1 Carry handles
2 Connecting plate with tube connections
3 Agitator motor
4 Carbonator tank
5 Cover
6 Circulation pump motor
7 Circulation pump
8 Sheet casing (service)
9 Compressor fuse
10 Refrigerant compressor
11 Sheet casing (fixed)

Description
Cornelius Deutschland GmbH
Document no. TD1005100
Version 08/10/2019, Index 3
Installation and service manual Undercounter cooler
Energize 3-5 (R134a)
9
3.4 Undercounter cooler Energize 5 (R134a) dual
The unit comprises the following assemblies:
Fig. 7
Fig. 8
12 3 4 5 7
6
8 9 10 11
12
131415161718
1 Carry handles
2 Control and indicator panel
3 Circulation pump 2
4 Circulation pump 1
5 Carbonator pump 2
6 Cover
7 Carbonator pump 1
8 Transformer
9 Control system 2
10 Agitator motor
11 Carbonator tank
12 Sheet casing (fixed)
13 Control system 1
14 Carbonator pump motor 1
15 Condenser
16 Fan
17 Refrigerant compressor
18 Sheet casing (service)
1
2 3 4 5 6
7 8 9
1213 1011
1 Carry handles
2 Connecting plate with tube connections
3 Agitator motor
4 Cover
5 Run capacitor for carbonator pump motor
6 Pressure switch for carbonator pump
7 Circulation pump motor
8 Circulation pump
9 Sheet casing (service)
10 Compressor fuse
11 Refrigerant compressor
12 Water bath
13 Sheet casing (fixed)

Description
Cornelius Deutschland GmbH
Document no. TD1005100
Version 08/10/2019, Index 3
Installation and service manual Undercounter cooler
Energize 3-5 (R134a)
10
3.5 Functions within the dispensing system
NOTICE!
The description of how the unit works within the dispensing system is included in the relevant operator manual
for this unit; see the document “Undercounter cooler operator manual”, document no. TD1005000.
3.6 Functions of the unit
NOTICE!
Flowchart; see chapter 10.1
The three basic functions of the unit are:
– Refrigeration
– Carbonisation
– Conveying
All functions are controlled by the requests at the tower or by the sensor logic of the unit’s internal control system.
The carbonator pump forces the mains water into the carbonator tank at a constant pressure.
The water in the carbonator tank has CO2added to it to produce soda. The circulation pump keeps the chilled soda circulating in
the secondary refrigeration system to the tower.
Ice is built up in the water bath to refrigerate the products. The agitator keeps the products refrigerated. The ice build-up sensor
prevents excessive freezing of the ice build-up.
Cold generator
A cold generator refrigerates the water bath by means of a heat exchanger. In the process, a defined ice build-up is generated
around the heat exchanger.
To stop the water bath from freezing up and to maintain more efficient heat exchange, an agitator constantly agitates the cooling
water.
Once the unit has been filled with water, the refrigerant compressor automatically starts up after 3 minutes if the compressor is in
position “I”. Once the maximum ice build-up has been achieved, the refrigerant compressor automatically switches off.
In ice build-up mode, certain minimum runtimes and operation intervals arise. After switching on the refrigeration circuit, the run-
time is at least 5 minutes, even if a shutdown has been signalled beforehand. After switching off the refrigeration circuit, the oper-
ation intervals are at least 3 minutes, even if switching on has been signalled beforehand. The operation intervals of 3 minutes
also apply to start-up or after a power failure.
Control system and sensor logic
There is a sensor for the water level in the carbonator tank, a probe for controlling the ice build-up, the hot gas sensor for the re-
frigerating unit, a temperature probe in the python return, an ambient temperature sensor, and a water bath probe.
If CO2pressure is insufficient in the carbonator tank, a yellow LED on the control unit will visually indicate that the pressure is too
low (< 0.4 MPa).
The tower power supply is cut off in good time to prevent the carbonator tank being pumped empty. Once the carbonator tank has
been refilled, the power supply is automatically switched on again.
If the fill level drops below the minimum, the carbonator pump will automatically switch on and fill the carbonator tank.
The carbonator pump switches off when the carbonator tank has been filled to maximum, or after 20 minutes at the latest. Longer
runtimes indicate leaks or excessive beverage dispensing. The pump can only be restarted by a reset (temporarily unplugging the
mains plug for approx. 10 seconds).
Water supply
The system’s drinking water supply is provided by the mains water which flows through a pressure-reducing valve and filter to the
carbonator pump on the unit’s connecting plate. If still water is requested at the tower, the water flows via a heat exchanger in the
refrigerated water bath to the tower.
To ensure the water stays chilled, even in the breaks between dispensing, a circulation pump in the unit constantly recirculates the
water via a heat exchanger in the water bath.
CO2connection
The CO2is supplied by the pressurised gas cylinder and pressure-reducing valve to the unit’s CO2connection.
Only for types with CO2-operated syrup pumps:
In the case of CO2operated syrup pumps, CO2is supplied separately by the pressurised gas cylinder through a dual pressure-
reducing valve to the syrup pumps for the supply of standard basic ingredients, and to the syrup pump for the supply of the basic
ingredient for reduced calorie (‘light’) products.
Soda and still water connection
The soda is connected to the flow and return connections of the soda water circuit on the unit’s connecting plate.
Still water is connected at the unit’s still water outlet.
Syrup supply
The syrup containers are connected directly to the syrup connections on the unit.
The BiBs are connected to the syrup pumps and from there to the syrup connections on the unit.

Description
Cornelius Deutschland GmbH
Document no. TD1005100
Version 08/10/2019, Index 3
Installation and service manual Undercounter cooler
Energize 3-5 (R134a)
11
3.7 Technical data
3.7.1 Undercounter cooler Energize 3 (R134a)
3.7.2 Undercounter cooler Energize 4 (R134a)
Description Parameter Value Unit
Dimensions Height 605/23.8 mm/in.
Width 850/33.5 mm/in.
Depth 470/18.5 mm/in.
Dispensing capacity at a dispensing rate of 2 drinks of
0.3 litres a minute1
360 at 2/min pcs.
Ice build-up size Weight 18 kg
Ice build-up capacity 1440 kcal/h
Ice build-up (No python) 120 min.
Refrigerant 1,1,1,2-Tetrafluoroethane R134a 0.400 kg
Power supply Supply voltage 230 V
Frequency 50 Hz
Power input max. 1200 W
Current consumption max. 5.8 A
Compressor Output 684 W2
Carbonator pump capacity at 0.2 MPa 280 L/h
Circulation pump capacity at 0.2 MPa 320 L/h
Python length max. 15 m
Cooling capacity3/
in work area
768 W
660 kcal/h
Number of cooling coils max. 7xPOM pcs.
Shipping weight 80 kg
1. with 15 m SC python
2. at -10 °C evaporation temperature
3. Specifications on cooling capacity and dispensing capacity at an ambient temperature of 32 °C and beverage dispensing temperatures of < 5 °C
Description Parameter Value Unit
Dimensions Height 660/26 mm/in.
Width 950/37.4 mm/in.
Depth 515/20.3 mm/in.
Dispensing capacity at a dispensing rate of 2 drinks of
0.3 litres a minute1
700 at 2/min pcs.
Ice build-up size Weight 30 kg
Ice build-up capacity 2400 kcal/h
Ice build-up (No python) 195 min.
Refrigerant 1,1,1,2-Tetrafluoroethane R134a 0.490 kg
Power supply Supply voltage 230 V
Frequency 50 Hz
Power input max. 1700 W
Current consumption max. 9 A
Compressor Output 793 W2
Carbonator pump capacity at 0.2 MPa 2 x 280 L/h
Circulation pump capacity at 0.2 MPa 320 L/h
Python length max. 30 m
Cooling capacity3/
in work area
888 W
763 kcal/h
Number of cooling coils max. 8xPOM pcs.
Shipping weight 110 kg
1. with 30 m SC python
2. at -10 °C evaporation temperature
3. Specifications on cooling capacity and dispensing capacity at an ambient temperature of 32 °C and beverage dispensing temperatures of < 5 °C

Description
Cornelius Deutschland GmbH
Document no. TD1005100
Version 08/10/2019, Index 3
Installation and service manual Undercounter cooler
Energize 3-5 (R134a)
12
3.7.3 Undercounter cooler Energize 5 (R134a) single/Energize 5 (R134a) dual
3.7.4 Labelling positions
NOTICE!
The applicable operator manual includes illustration of the labelling positions for this unit; see the document
“Undercounter cooler operator manual”, document no. TD1005000.
3.7.5 CO2working pressures
NOTICE!
The applicable operator manual for this unit includes specifications for the CO2working pressures for the unit;
see the document “Undercounter cooler operator manual”, document no. TD1005000.
Description Parameter Value Unit
Dimensions Height 810/31.9 mm/in.
Width 1080/42.5 mm/in.
Depth 690/27.2 mm/in.
Dispensing capacity at a dispensing rate of 4 drinks of
0.3 litres a minute1
700 at 4/min pcs.
Ice build-up size Weight 55 kg
Ice build-up capacity 4400 kcal/h
Ice build-up (No python) 253 min.
Refrigerant 1,1,1,2-Tetrafluoroethane R134a 0.800 kg
Power supply Supply voltage 230 V
Frequency 50 Hz
Power input max. 2200 W
Current consumption max. 11.5 A
Compressor Output 1440 W2
Carbonator pump capacity at 0.2 MPa 2 x 280 L/h
Circulation pump capacity at 0.2 MPa (single) 320 L/h
at 0.2 MPa (dual) 2 x 320 L/h
Python length max. 30 m
Cooling capacity3/
in work area
1242 W
1068 kcal/h
Number of cooling coils max. 10xPOM pcs.
Shipping weight 125 kg
1. with 30 m SC python
2. at -10 °C evaporation temperature
3. Specifications on cooling capacity and dispensing capacity at an ambient temperature of 32 °C and beverage dispensing temperatures of < 5 °C

Description
Cornelius Deutschland GmbH
Document no. TD1005100
Version 08/10/2019, Index 3
Installation and service manual Undercounter cooler
Energize 3-5 (R134a)
13
3.8 Connections
3.8.1 Undercounter cooler Energize 3 (R134a)
Fig. 9
3.8.2 Undercounter cooler Energize 4 (R134a)
Fig. 10
1 2 3 4 5 6
78
Item Designation Medium Connection size
1 Water IN Drinking water connection 3/8" ID and 1/2" OD
2CO
2IN CO2supply for carbonation 3/8" ID and 1/2" OD
3 Cable Cable duct for still water control system 16 mm
4 Still water Still water dispenser 1/4" ID and 3/8" OD
5 B Soda water circulation (return) 3/8" ID and 1/2" OD
6 F Soda water circulation (supply) 3/8" ID and 1/2" OD
7 1, 2, 3, 4, 5, 6, 7 Syrup tubes 1-7 (output) 1/4" ID and 3/8" OD
8 1, 2, 3, 4, 5, 6, 7 Syrup tubes 1-7 (input) 1/4" ID and 3/8" OD
1 2 3 4 5 6 7
8
9
Item Designation Medium Connection size
1 Water IN 1 Drinking water connection 1 3/8" ID and 1/2" OD
2 Water IN 2 Drinking water connection 2 3/8" ID and 1/2" OD
3CO
2IN CO2supply for carbonation 3/8" ID and 1/2" OD
4 Cable Cable duct for still water control system 16 mm
5 Still water Still water dispenser 1/4" ID and 3/8" OD
6 B Soda water circulation (return) 3/8" ID and 1/2" OD
7 F Soda water circulation (supply) 3/8" ID and 1/2" OD
8 1, 2, 3, 4, 5, 6, 7, 8 Syrup tubes 1-8 (output) 1/4" ID and 3/8" OD
9 1, 2, 3, 4, 5, 6, 7, 8 Syrup tubes 1-8 (input) 1/4" ID and 3/8" OD

Description
Cornelius Deutschland GmbH
Document no. TD1005100
Version 08/10/2019, Index 3
Installation and service manual Undercounter cooler
Energize 3-5 (R134a)
14
3.8.3 Undercounter cooler Energize 5 (R134a) single
Fig. 11
123 4 5 6 7
8
9
Item Designation Medium Connection size
1 Water IN 1 Drinking water connection 1 3/8" ID and 1/2" OD
2 Water IN 2 Drinking water connection 2 3/8" ID and 1/2" OD
3CO
2-1 CO2supply 1 for carbonation 3/8" ID and 1/2" OD
4 Cable Cable duct for still water control system 16 mm
5 Still Water 1 Still water dispenser 1 1/4" ID and 3/8" OD
6 B 1 Soda water circulation 1 (return) 3/8" ID and 1/2" OD
7 F 1 Soda water circulation 1 (supply) 3/8" ID and 1/2" OD
8 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 Syrup tubes 1-10 (output) 1/4" ID and 3/8" OD
9 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 Syrup tubes 1-10 (input) 1/4" ID and 3/8" OD

Description
Cornelius Deutschland GmbH
Document no. TD1005100
Version 08/10/2019, Index 3
Installation and service manual Undercounter cooler
Energize 3-5 (R134a)
15
3.8.4 Undercounter cooler Energize 5 (R134a) dual
Fig. 12
1 2 3 8 9 10 11 12 13
14
15
7654
Item Designation Medium Connection size
1 Water IN 1 Drinking water connection 1 3/8" ID and 1/2" OD
2 Water IN 2 Drinking water connection 2 3/8" ID and 1/2" OD
3CO
2-1 CO2supply 1 for carbonation 3/8" ID and 1/2" OD
4 1 Additional syrup tube (input) (optional) 3/8" ID and 1/2" OD
5 2 Additional syrup tube (output) (optional) 3/8" ID and 1/2" OD
6 1 Additional syrup tube (input) (optional) 3/8" ID and 1/2" OD
7 2 Additional syrup tube (output) (optional) 3/8" ID and 1/2" OD
8 Cable Cable duct for still water control system 16 mm
9 Still Water 1 Still water dispenser 1 1/4" ID and 3/8" OD
10 B 1 Soda water circulation 1 (return) 3/8" ID and 1/2" OD
11 F 1 Soda water circulation 1 (supply) 3/8" ID and 1/2" OD
12 B 2 Soda water circulation 2 (return) 3/8" ID and 1/2" OD
13 F 2 Soda water circulation 2 (supply) 3/8" ID and 1/2" OD
14 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 Syrup tubes 1-10 (output) 1/4" ID and 3/8" OD
15 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 Syrup tubes 1-10 (input) 1/4" ID and 3/8" OD

Preparing the unit
Cornelius Deutschland GmbH
Document no. TD1005100
Version 08/10/2019, Index 3
Installation and service manual Undercounter cooler
Energize 3-5 (R134a)
16
4 Preparing the unit
DANGER!
Risk of personal injury and equipment damage due to non-compliance with safety information!
Failure to observe the safety information will result in a risk of bringing about operating conditions at the unit,
which may cause personal injury or equipment damage.
• Please always strictly observe all safety measures and information/instructions; see chapter 1.
This chapter describes the tasks that may be required before carrying out any actual maintenance or repair work.
DANGER!
You may only continue working on the unit if the unit carries no voltage.
If the unit still carries a voltage after you have disconnected it from power, this indicates a defect. Resolve this
defect before continuing the checks/inspections or any work.
4.1 Disconnecting the unit from power
ATTENTION!
Risk of death from electric shock!
The mains plug may still have residual current.
• Wait a minimum of 1 minute before continuing work on the unit.
ATTENTION!
Risk of equipment damage!
A direct “low ohm” discharge may cause equipment damage.
• Discharge the components properly.
Prerequisites References
The tower has been shut down. See the document “Tower operator manual”
Required tools/materials ID/reference Qty/amount Comment
Wiring diagram for undercounter cooler
Energize 3-5 (R134a)
141660171 1 see chapter 10.5
Tower operator
manual
Document no:
various
1
Multimeter Various 1 Safety category CAT II
1. Turn the compressor switch (Fig. 13/3) to position “0”.
2. Turn the circulation pump switch (Fig. 13/2) to position “0”.
3. Turn the carbonator pump switch (Fig. 13/1) to position “0”.
Fig. 13
1
2
3
4. Pull the mains plug out of the earthed socket.
Fig. 14

Installation/removal
Cornelius Deutschland GmbH
Document no. TD1005100
Version 08/10/2019, Index 3
Installation and service manual Undercounter cooler
Energize 3-5 (R134a)
17
5 Installation/removal
DANGER!
Risk of personal injury and equipment damage due to non-compliance with safety information!
Failure to observe the safety information will result in a risk of bringing about operating conditions at the unit,
which may cause personal injury or equipment damage.
• Please always strictly observe all safety measures and information/instructions; see chapter 1.
NOTICE!
All installation, maintenance and repair work at the unit is to be carried out by an expert only.
WARNING!
Risk of personal injury and equipment damage due to operation by non-qualified staff!
It is dangerous for non-qualified staff to operate the unit!
• Service operations on this unit may only be carried out by trained and certified experts who have been
trained in carrying out service operations on this unit.
• All wiring and plumbing must be carried out in compliance with national and local laws, regulations and
guidelines. Non-compliance with these laws, regulations and guidelines may result in death, serious injury
or equipment damage.
5. Discharge the condensers as follows:
a) Disconnect the AC power line (Fig. 15/1) from the unit.
b) Switch the multimeter to alternating voltage.
Fig. 15
1
c) Measure the voltage at the unit mains connection (Fig. 16/1) using a multimeter.
Make sure the voltage drops to a value of 0 V in the process.
d) Only continue working on the unit once the unit is fully discharged of voltage.
Fig. 16
1

Installation/removal
Cornelius Deutschland GmbH
Document no. TD1005100
Version 08/10/2019, Index 3
Installation and service manual Undercounter cooler
Energize 3-5 (R134a)
18
5.1 Installation location
NOTICE!
Observe all rules and regulations regarding installation rooms and electric connections as applicable in the in-
dividual countries, as well as accident prevention regulations.
ATTENTION!
Damage due to inadequate ventilation!
If the unit is inadequately ventilated, it will overheat and become damaged.
• During installation of the unit, make sure the site of installation is adequately ventilated.
• Always make sure that the supply and exhaust air grilles are not covered.
• When installing the unit, keep a minimum distance of 30 cm from objects or walls.
NOTICE!
For the Energize 5 (R134a) devices, the operator must ensure that the maximum system impedance at the
point of connection to the public low-voltage supply is less than or equal to Zmax of 0.417 Ω.
If necessary, the operator must consult with the responsible electricity supply company.
The unit must be set up and installed close to an earthed mains socket. The electric circuit must be fuse-protected, and no addi-
tional units or devices must be connected to the electric circuit.
All connections and outlets/drains must comply with the applicable local and/or national and international regulations.
5.2 Installing the unit
DANGER!
Risk of personal injury and equipment damage due to non-compliance with rules and regulations!
Risk of death in the case of non-compliance with rules and regulations regarding connection of the water sup-
ply!
• In accordance with the current state of the art, install the water supply on the product using an air gap pro-
tection back flow system, a vacuum control valve or some other method that has proved effective during
tests. Installation must be carried out in compliance with all federal, state and local laws.
• Water pipe connections and fixtures that are directly connected to the drinking water supply must be in-
stalled and serviced in compliance with federal, state and local laws.
Prerequisites References
The unit has been unpacked. See the document “Undercounter cooler operator manual”,doc-
ument no. TD1005000
The cover has been removed. see chapter 7.1
The CO2bottle has been set up properly. See the document on the CO2system
The pressure-reducing valves have been mounted on the CO2
bottle.
See the document on the CO2system
The pressure-reducing valves have been mounted on the water
supply line.
See the document on the drinking water system
The syrup containers and BIBs have been set up.
Required tools/materials ID/reference Qty/amount Comment
Quick disconnect couplings
Wiring diagram for undercounter cooler
Energize 3-5 (R134a)
141660171 1 see chapter 10.5
Undercounter cooler operator manual Document no. TD1005000 1