Hillphoenix CO2One User manual

CO2One
CO2Condensing Unit Manual
DECEMBER 2021

I
DISCLAIMER
This manual is designed to provide only general information. If advice
about a particular system or component is needed, consult your
supervisor or a senior technician. Any applicable specification sheets,
data sheets, handbooks, and instructions for this installation provided by
Hillphoenix should only be consulted for information including, without
limitation, material regarding the design, installation, maintenance,
care, warnings relating to, and proper uses of Hillphoenix products as
they pertain to this installation. Any information pertaining to products
referred to in this manual that are not provided by Hillphoenix is in no
way intended to be authoritative or in any way ensured to be accurate.
INFORMATION CONTAINED WITHIN THIS MANUAL, IS PROVIDED “AS
IS,” WITH ALL FAULTS, WITH NO REPRESENTATIONS OR WARRANTIES
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT
NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE, QUALITY OF INFORMATION,
QUIET ENJOYMENT, AND TITLE/ NONINFRINGEMENT. HILLPHOENIX
SPECIFICALLY DISCLAIMS ALL LIABILITY FOR ERRORS OR OMISSIONS
IN, OR THE MISUSE OR MISINTERPRETATION OF, ANY INFORMATION
CONTAINED IN THIS MANUAL. HILLPHOENIX DOES NOT WARRANT THE
ACCURACY, COMPLETENESS OR TIMELINESS OF THE INFORMATION
CONTAINED IN THIS MANUAL.
Copyright©2021
Rev: Ver 1.0 November 26, 2021

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Hillphoenix Refrigeration Systems
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Important Notices
Hillphoenix emphasizes important information in installation and operations manuals with alert symbols. These
symbols, and text, call attention to potential dangers to personal health and safety – as well as to equipment
damage – if the instructions in this manual are not followed carefully.
Hillphoenix industrial Hillphoenix industrial refrigeration systems should only be installed and serviced by trained
refrigeration systems should only be installed and serviced by trained and qualied technicians who have
experience working with industrial refrigeration systems.
ATTENTION!ATTENTION!
Indicates important information that is
critical to proper system performance.
CAUTION!CAUTION!
Indicates the threat of potential injury if
all instructions are not followed carefully.
DANGER!DANGER!
Indicates an immediate threat of serious injury or
death if all instructions are not followed carefully.
Experienced installers and technicians not only assure that customers enjoy optimum and technicians not
only assure that customers enjoy optimum system performance, but that potential problems and unforeseen
circumstances system performance, but that potential problems and unforeseen circumstances encountered
during the installation process are either avoided or addressed in the most encountered during the installation
process are either avoided or addressed in the most effective and efcient way possible. For a list of Hillphoenix-
authorized installation and effective and efcient way possible. For a list of Hillphoenix-authorized installation
and service contractors, including our own AMS Group, visit our website at www.hillphoenix. com.

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Hillphoenix Refrigeration Systems
CO2One Condensing Unit
Safety Labels
The warning labels shown in the table below are present on the equipment.
PLATE DESCRIPTION
Indicates that it is forbidden to remove the safety devices and protections
installed; it is usually accompanied by the explanatory wording: DO NOT
REMOVE THE PROTECTIVE DEVICES.
Indicates that it is forbidden to perform any type of maintenance (including
lubrication and cleaning) near moving parts; usually, it is accompanied by
the explanatory wording: DO NOT REPAIR OR ADJUST WHILE THE MACHINE
IS RUNNING.
Signals the danger due to the presence of mobile parts near the area of the
partly completed machinery where it is positioned.
Signals the danger of electrical voltage.
Signals the danger of hot surfaces.
Signals that it is mandatory to read the manual/assembly instructions.
Warns against touching the parts in near the area where it is afxed.
System or component pressurized
System contains refrigerant under high pressure. Do not tamper with it.
It must be serviced by qualied persons only.
The refrigerator is for use with R744 (carbon dioxide) system components
where the design pressure of the refrigerator is not less than the design
pressure of the associated components.
WARNING: more than one source of electrical supply. Disconnect all sources
before servicing.

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Hillphoenix Refrigeration Systems
CO2One Condensing Unit
1. On all the air exchangers present in the equipment
2. On each surface subject to high temperatures
3. On each energized part
Position of the Pictograms

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Hillphoenix Refrigeration Systems
CO2One Condensing Unit
Hillphoenix, Inc. - All rights reserved
These assembly instructions are intended for users of CO2One and for the instruction of the technicians
involved in installation and maintenance. The instructions, drawings, tables, and anything else contained in
this instruction manual are of a reserved technical nature and cannot be reproduced and/or disclosed, either
completely or partially, without the specic written authorization of Hillphoenix.
The installation and maintenance technicians are explicitly prohibited from disseminating the information
contained and from using this manual for purposes other than for those strictly related to efcient maintenance
of the equipment.
Hillphoenix cannot be held responsible or liable for damages caused by incorrect use of the documentation.
In order to avoid actions that could cause danger to persons, it is important to read and understand all the
documentation accompanying the equipment.
Manufacturer’s Name Hillphoenix, Inc.
Address 2016 Gees Mill Road
Conyers, GA 30013
Telephone [phone]
Fax [phone]

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Hillphoenix Refrigeration Systems
CO2One Condensing Unit
General Information
This manual covers general installation, operation, maintenance, and troubleshooting of a Hillphoenix industrial
refrigeration system. It can serve as a useful resource for understanding the system and its operation.
Receiving Equipment
Receiving Equipment Inspect all arriving equipment carefully. In the event of shipping damage and/or shortages,
contact the Hillphoenix Service Parts Department at 800-283-1109.
Missing Items
Missing Items Hillphoenix carefully inspects all systmes and products before shipping to ensure the highest
level of quality. There may be occasions however, when a particular item or part is not included when the
system or product is shipped. Any claim for missing items must be made to Hillphoenix within 48 hours of
receipt of the equipment.
Technical Support
Technical Support For technical support issues regarding this unit, contact the Hillphoenix Refrigeration Technical
Support at 770-285-3061.
Ordering Equipment Parts
Contact Hillphoenix OEM Genuine Parts at 833-3PARTS1 (833-372-7871) if any
additional parts are needed during installation or any time afterwards for the
system. If a part does not have a barcode, the following can assit in ordering the
right part:
• Model number and serial number of the part
• Size of the part, if applicable
• Whether the part is for a left-handed or a right -handed application
• Quantity of parts required
• Ship-to location for parts delivery
If Hillphoenix decides that a part must be returned, a Return Material Authorization number will be provided to
complete the process.

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CO2One Condensing Unit
12

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Hillphoenix Refrigeration Systems
CO2One Condensing Unit
General Conditions
The manufacturer, Hillphoenix, Inc., guarantees the equipment produced by the manufacturer itself as being free
from material and processing defects for a period that is agreed upon when the contract for the sale of the same
unit is concluded.
The parts subject to wear and all the tools and consumables supplied by the manufacturer together with the
equipment are excluded from the warranty.
Actions That Invalidate the Warranty
Any attempt to disassemble, modify, or tamper with a component of the equipment by the user or by
unauthorised personnel entails invalidating of the warranty and exempts the manufacturer from any
responsibility for any damage to persons or property deriving from such tampering. The manufacturer is also
deemed to be exempted from any liability with invalidation of the warranty relating to the equipment in the
following cases:
• Use contrary to that described in Proper and Improper Use of the Equipment in Section 2: Safety Introduction
• Use contrary to local codes and ordinances
• Installation under conditions other than those specied in Section 4: Transport and Installation
• Iinstallation not compliant with the specications provided in Section 4: Transport and Installation
• Full or partial failure to comply with the instructions provided in this instruction manual
• Non- or incorrect maintenance
• Use of spare parts which are not original or not specied by the manufacturer
Assistance
This instruction manual does not replace the experience of trained and qualied installers, users, and
maintenance technicians.
Hillphoenix provides telephone support as well as documentation covering the installation, use, and maintenance
of the equipment.
WARNING: If in any doubt about the correct interpretation of the instructions provided in these
assembly instructions, contact the Hillphoenix Technical Support team for clarication.
Provide the name, model, and serial number of the equipment when requesting assistance.

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Hillphoenix Refrigeration Systems
CO2One Condensing Unit
Table of Contents
Section 1: Overview................................................ 1
Introduction .....................................................................1
Proprietary Information ...........................................................1
Contents of the Assembly Instructions ...............................................2
Conventions and Definitions .......................................................3
Section 2: General Safety Information ................................ 5
Engineering Criteria ..............................................................5
Devices and Solutions for Protection ................................................6
Residual Risks ...................................................................7
Proper and Improper Use of the Equipment ...........................................7
Incorporation Statement ..........................................................8
General Warnings and Rules of Conduct .............................................8
Section 3: Description of the Equipment ............................. 10
Identification Plate ..............................................................13
Section 4: Transport and Installation ................................ 16
Environmental Requirements .....................................................16
Power Supplies and Utilities ......................................................16
Transport and Handling ..........................................................17
Installation .....................................................................19
Preparation for Startup...........................................................34
Storage ........................................................................46
Uninstalling ....................................................................46
Section 5: Maintenance ........................................... 47
Maintenance and Cleaning .......................................................48
Safety Valve Operation ...........................................................51
Section 6: Troubleshooting ........................................ 52
Section 7: Appendices ............................................ 54

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Hillphoenix Refrigeration Systems
CO2One Condensing Unit
Section 1: Overview
CO2One Condensing Unit
Section 1: Overview
Introduction
These assembly instructions are an integral part of the CO2One product (identied in this document as the
equipment or unit) produced by Hillphoenix, Inc.; they will need to be included in the documentation for the
equipment when it is installed.
These instructions have been written to provide the technicians involved in the installation and maintenance of
the equipment with the essential information and instructions to operate correctly and safely.
ATTENTION: Needing to be easily and immediately available, these instructions must be kept in a
place that is known and accessible to all.
The purchaser may request a copy of this document (for example, in case of damage to the original
document) with a written request to Hillphoenix Technical Support (see Request for Assistance later
in this section), and agrees to return the damaged copy.
Proprietary Information
These assembly instructions contain condential proprietary information. All rights reserved.
These instructions may not be reproduced or photocopied, in whole or in part, without the prior written consent of
the manufacturer. Only the purchaser to whom the instructions have been provided may use this documentation
with the equipment and only for the purposes of installation and maintenance of the equipment to which the
instructions refer.
The manufacturer declares that the information contained in these instructions is consistent with the technical
and safety specications of the equipment to which the instructions refer. The drawings, diagrams, and technical
data shown are updated at the date of publication of this document and are valid only for the equipment to which
they have been attached.
The manufacturer reserves the right to apply changes or improvements to this documentation without prior notice.
The manufacturer assumes no responsibility for direct or indirect damage to persons, property, or pets resulting
from use of this material or of the equipment in conditions other than those provided for.

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Hillphoenix Refrigeration Systems
CO2One Condensing Unit
Section 1: Overview
SECTION CONTENT
Section 1
General information
• Description of the assembly instructions, their structure, and the
conventions used
• Denition of the terms used
• Denition of the relationship between the manufacturer and the purchaser/
user (in terms of warranty and assistance conditions)
Section 2
General Safety
Information
• Presentation of general indications regarding the equipment and guidance for the
protection of operating personnel
• Presentation of the residual risks present
Section 3
Description of
the Equipment
• Description of the equipment
• Presentation of the main technical data concerning the equipment
Section 4
Transport and
Installation
• Description of the methods of lifting and handling the equipment
• Description of the installation methods, electrical connections, and commissioning
of the equipment
• Description of optimal storage of the equipment
• Description of uninstallation of the equipment
Section 5
Maintenance and
Dismantling
• Description of the verication and control procedures of the parts and components
of the equipment (in particular, of the parts most subject to wear)
• Description of the procedures for the designated personnel to clean the equipment
• Instructions for disassembling, demolishing, and disposing of the equipment
Section 6
Troubleshooting
• List of possible malfunctions of the equipment and related solutions
Section 7
Appendices
• Technical datasheets of the possible versions of the equipment
• Refrigeration diagram
• Documentation of components tted to the equipment
• Declaration of incorporation
Contents of the Assembly Instructions
These instructions are intended for technicians to understand and correctly install the equipment. These
instructions also provide guidance for:
• Correct transportation and installation of the equipment
• Performing correct cleaning, adjustment, and maintenance of the equipment
• Drawing attention to the most important safety and accident-prevention rules
Carefully read all sections to understand the indications provided in these instructions and to properly operate
the equipment. For easier searching through the contents, refer to the following table containing a description of
the topics addressed in the sections.

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Hillphoenix Refrigeration Systems
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Section 1: Overview
Conventions and Definitions
The assembly instructions for the uninstalled equipment were divided into sections to enable, for each life phase
of the equipment (transportation, installation, maintenance, and decommissioning), readily available information
necessary for the user of the equipment.
The entire documentation relating to the equipment was prepared in accordance with current safety regulations.
The conguration of certain elements or devices described or represented in the documents may differ from
that of the equipment in the specic setup created according to particular requirements or safety regulations;
in this case, certain descriptions, references, or best practices may have a generic character while retaining
their effectiveness.
Dimensional drawings and photographs are provided as a reference for easier understanding of the text.
Denitions
P.P.E.: The acronym for Personal Protective Equipment.
DANGEROUS AREA: Any area inside or near the equipment that presents a risk to the health and safety of an
exposed person.
USER: Any person (entrepreneur/company) who adequately uses the equipment or who entrusts its use to
persons instructed on its proper operation.
EXPOSED PERSON: Any person wholly or partially present in a dangerous zone or near such areas.
MECHANICAL MAINTENANCE WORKER: A qualied technician allowed to work on any mechanical component to
carry out the necessary adjustments, repairs, and maintenance.
The mechanical maintenance operator is not permitted to carry out maintenance on powered electrical plants.
MAINTENANCE ELECTRICIAN: A qualied technician in charge of electrical works (adjustment, maintenance,
repairs) and, when necessary, works inside powered electric cabinets and the junction boxes.
HANDLING PERSONNEL: Qualied personnel who carry out the tasks of handling the equipment or the materials
used if these tasks require the use of lifting devices.
MANUFACTURER’S TECHNICIAN: Qualied technician provided by the manufacturer of the equipment to carry
out operations of a complex nature in particular situations or when agreed with the user.

Hillphoenix Refrigeration Systems
CO2One Condensing Unit
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Hillphoenix Refrigeration Systems
CO2One Condensing Unit
Section 1: Overview
Personal Protection Equipment and Rules of Conduct
For each of the procedures described in these instructions, mandatory protective measures and safety guidelines
are specied for the safety of any personnel operating the equipment.
Editorial Conventions
The layout of these instructions allows easy readability of the contents with the use of bulleted and numbered
lists, as indicated below:
•This symbol identies a generic bulleted list or list in points consisting of simple actions (the order
in which the actions are presented is not mandatory but recommended).
1. A numbered explanatory list of a complex procedure is identied (the order in which the actions
are presented is mandatory to correctly and safely perform the work in question).
Italic text Italicized text is used, in particular, for:
• Cross-references; the cross references used in these instructions are expressed in the
following form: “Paragraph/Table” with the number and, in general, the specication “of the
section” with the number and name of that section (when it is not specied it is implied that
the paragraph or the table belong to the current section).
• Technical and specialized terms, the rst time they appear in the text.
Bold text Bold text is used to highlight words, phrases, or parts of the procedure.
Personal Protective Equipment (PPE)
This paragraph indicates the graphic symbols used in these instructions to indicate the need to use certain PPE.
SYMBOL DESCRIPTION
Indicates the need to use head protectors suitable for performing the described procedure.
Indicates the need to use protective gloves suitable for performing the described procedure
(possibly of the dielectrics type for work performed on the electrical system).
Indicates the need to use protective clothing suitable for performing the described procedure.
Indicates the need to use safety shoes suitable for performing the described procedure.
Indicates the need to use protective goggles to perform the described procedure.

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Hillphoenix Refrigeration Systems
CO2One Condensing Unit
Section 2: Safety Introduction
Hillphoenix Refrigeration Systems
CO2One Condensing Unit
Section 2: General Safety Information
Engineering Criteria
The equipment has been designed in compliance with the standards indicated in the table below.
STANDARD NAME
UL 60335-1
Safety of Household and Similar Appliances, Part 1: General Requirements,
Edition 6,
Issue Date 2016-10-31
CAN/CSA-C22.2 No. 60335-1:16, Second Edition, Issue Date 2016-10-31
UL 60335-2-89
Household and Similar Electrical Appliances - Safety - Part 2-89: Particular
Requirements for Commercial Refrigerating Appliances with an Incorporated or
Remote Refrigerant Unit or Compressor, Edition 1, Issue Date 2017-09-29
CAN/CSA-C22.2 No. 60335-2-89:17, First Edition, Issue Date 2017-09-29
These standards are designed to reduce or eliminate risk of malfunction, damage, or injury to the greatest
extent possible.
The components used have been carefully chosen from those available on the market; the equipment is
comprised of materials that involve no risks to the health and safety of persons. All parts supplied by third parties
are UL-certied (when envisaged) and comply with the relevant directives of reference. All components have been
strictly controlled in accordance with the quality standards prescribed by the current regulations.
For the necessary warning and protection measures related to residual risks, see Residual Risks in Section 2:
Safety Introduction.

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Hillphoenix Refrigeration Systems
CO2One Condensing Unit
Section 2: Safety Introduction
Devices and Solutions for Protection
Passive Safety Devices
The equipment includes the following safety devices and features:
• Fixed guards close to the moving parts
• External fairing with xed access doors (if equipped)
• Safety signs corresponding to the guards on the equipment
Active Safety Devices
The equipment includes the following active safety devices:
• Maximum safety pressure switch for each automatic reset compressor (PSH) or for specic versions with
safety pressure switch for each manual reset compressor (PZH)
• Safety valve on the MT and LT circuit low-pressure side (if equipped)
• Safety valve(s) on the intermediate receiver
• Safety valve on the high-pressure side, (if equipped)
The valve calibration is shown on the valves themselves and is based on the EN 13136 standard.
ATTENTION: It is strictly forbidden to modify the calibration of the safety pressure switch and/or to
inhibit its operation.
Protection Systems
The system is equipped with protections to safeguard against anomalous situations affecting either the pressure
or voltage circuits.
Notications
The unit is equipped, in addition to the signals and instruments installed on the electrical panel, with indicator lights
on the inside. To access them, it may be necessary to remove one or more covering panels. For further information,
refer to the wiring diagram and to the documentation attached to this manual.
ATTENTION: Operating the equipment with the panel removed should only be performed by
authorized/qualied personnel. Observe all safety precautions and use the necessary PPE. At
the end of such operation, always carefully replace all panels removed.
ATTENTION: All work requiring access to the compressor compartment and machine display
can be done with power on and the right-hand compartment door open.
ATTENTION: DO NOT access the gas cooler zone by opening the fan panel with power on.
ATTENTION: DO NOT access the electrical enclosure with power on.
ATTENTION: DO NOT work on the inverter or the electronic components with power on.

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Hillphoenix Refrigeration Systems
CO2One Condensing Unit
Section 2: Safety Introduction
Residual Risks
To avoid any dangerous condition for persons or damage to the equipment caused by residual risks, i.e., those
risks that persist despite all provisions implemented, or potential risks which were not obvious, Hillphoenix
recommends that maintenance personnel and all personnel in charge of operating the equipment strictly follow
the warnings indicated on the following pages.
ATTENTION: Always comply with the signs and indications of the plates applied to the equipment
and operate exclusively according to the instructions provided in this instruction manual.
ATTENTION: All work to be performed on the equipment must be performed by qualied, trained, and
properly equipped personnel.
Residual risk of asphyxiation
To avoid leaks of gases that are dangerous to human health, install the unit in a dry, protected, and sufciently-
ventilated place in compliance with local codes and ordinances.
Residual risk of burns
Before carrying out any work on the equipment, make sure that the hot surfaces have cooled down; wear
protective gloves to avoid burns.
Proper and Improper Use of the Equipment
The equipment discussed in these assembly instructions has been designed and constructed exclusively for
refrigeration. The equipment is congured to use only R744 (CO2) refrigerant gas.
The equipment is designed to use only the refrigerant specied above. It is therefore important to use the
equipment in compliance with regulations applicable to the refrigerant uid for which it was designed and built
and as received from Hillphoenix.
The equipment has been designed and built to operate in environments with no potentially explosive atmosphere.
The equipment must be adequately protected from weather and environmental conditions.
As a precautionary measure, keep powder extinguishers in the vicinity of the equipment. To prevent the
possibility of re, keep the equipment clear of plastic pieces, oil, solvents, paper, and rags.
Use of the equipment for unauthorized purposes may cause harm to persons or damage to the unit itself and is
therefore considered improper use for which Hillphoenix is not responsible.

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Hillphoenix Refrigeration Systems
CO2One Condensing Unit
Section 2: Safety Introduction
DANGER: The user MUST conrm the type and quantity of gas contained in the equipment to ensure
proper operation.
ATTENTION: It is essential to consult Hillphoenix prior to any unapproved use.
DANGER: All work involving R744 (CO2) refrigerant must be carried out only by qualied technicians
trained to work with this type of refrigerant.
General Warnings and Rules of Conduct
In order to avoid any risk to persons or damage to the equipment, it is advisable to strictly follow the warnings
and general rules of conduct reported here.
DANGER: The manufacturer disclaims any liability for any damage to property and/or persons
arising from work performed by unqualied, untrained, or unauthorized personnel.
• Personnel in charge of operating the equipment must be adequately trained to avoid risk of damage or injury,
and must work in a comfortable environment with the best possible safety and hygiene conditions.
• Prior to using the equipment, ensure that any hazardous safety conditions have been rectied and that no
personnel are present in the danger area near the unit.
• After removing the packaging, make sure all equipment parts are intact; otherwise contact the dealer.
• Before using the equipment, ensure that all guards or other protections are tted and that all safety devices
are present and working.
• Carefully read the labels on the unit; do not cover them and replace them immediately if damaged.
• Do not place containers of liquids on the unit.
• Consult these instructions for the safety provisions in force and the specic Personal Protective Equipment
(PPE) to implement for staff safety; in particular, the staff responsible for the equipment must wear suitable
clothing, avoiding or paying due attention to:
• Loose clothing
• Wide sleeves
• Ties or draping scarves
• Necklaces, bracelets, and rings

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Hillphoenix Refrigeration Systems
CO2One Condensing Unit
Section 2: Safety Introduction
• Staff responsible for maintenance of the equipment must be aware of all the procedures outlined in Section
5: Maintenance and must have adequate technical training to correctly interpret the instructions and
diagrams attached to these instructions and to perform maintenance on the equipment.
• The area where the maintenance procedures are carried out must always be clean, dry, and with the
appropriate equipment always available and operating efciently.
• If it is necessary to perform maintenance procedures in the vicinity of electrical components, operate with dry
hands and use dielectric gloves.
• If the equipment is installed in a position not easily accessible to the operator, it is necessary to have suitable
structures to allow access to the components being serviced.
DANGER: It is necessary to ensure that the power supply is disconnected before starting any type
of maintenance on the unit or on its components or accessory equipment. If this is not possible, it
is necessary to take precautions to ensure safe working conditions in the area of the equipment.
DANGER: The leaking of refrigerant gas after the safety valve is engaged may result in damage to
property and/or injury to persons.
DANGER: Tampering with or unauthorized replacement of one or several parts of the equipment and
the use of accessories, tools, and consumables other than those indicated by the manufacturer may
result in an accident.
DANGER: The R744 (CO2) refrigerant is colorless and odorless. Its presence in the environment can
cause asphyxiation. All work must be performed in the presence of gas presence detectors and in
compliance with local codes and ordinances.
ATTENTION: All work involving R744 (CO2) refrigerant must be carried out only by qualied
technicians trained to operate with this type of refrigerant.
ATTENTION: All work involving R744 (CO2) refrigerant must be carried out in the presence of gas
presence detectors.
ATTENTION: All materials with an environmental impact must be disposed of according to the
regulations in force. If necessary, use specialist facilities for their disposal.

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Hillphoenix Refrigeration Systems
CO2One Condensing Unit
Section 3: Description of the Equipment
Section 3: Description of the Equipment
The condensing units described in this document are designed for use in commercial refrigeration. These
condensing unit systems are intended for use in locations where heat can be released outside of the building in
which they are installed..
The condensing units are compact, low-noise systems that are also suitable for outdoor use.
The unit is designed and optimized to work with CO2 (R744).
The operating modes can be transcritical or subcritical depending on the conditions of the external environment.
The electronic control, with appropriate logics, allows the equipment to always operate in conditions of maximum
efciency in different environmental conditions and cold demand. It also manages lubrication and any alarms by
signaling them on the electronic control terminal.
Depending on the model, for the condensing unit, units can be provided with a single fan-motor, or with a
double fan.
All models are equipped with the following refrigerator accessories:
• Compressor(s) driven by inverter
• Control valves
• Intermediate receiver
• Dehydrating lter and liquid indicator
• On-board gas cooler
• Electrical panel with relative electronic control
In low-temperature refrigeration models, a desuperheater (intercooler) is incorporated in the gas cooler battery.
All models also have a crankcase heater that prevents the accumulation of liquid in the lower area of the
compressor during downturn periods. The unit is always enclosed in a self-supporting housing made of steel
varnished with epoxy powder and is equipped with electrical equipment with a main disconnecting switch (the
power supply wire that must be connected to the switch is not supplied).
The following variants are possible:
• Only for medium-temperature units
• Only for low--temperature units