Diamond SN201M-2M Freezer User Manual
- June 9, 2024
- DIAMOND
Table of Contents
SN201M-2M Freezer
06/2022
Mod: SN201M-2M
Production code: SFL008G011-DI
I
P-SF-SV Pag. 2 Rev 01 07/14
UK
ALL RIGHTS RESERVED
This Use and Maintenance Handbook is entrusted to users of BLOCKSYSTEM P-SF-
SV, to instruct the technicians responsible for maintenance and operators. The
instructions, drawings, tables and any other contents of this handbook are of
a confidential technical nature and cannot be reproduced and/or divulged,
completely or in part, without the specific written authorisation of It is
explicitly forbidden for technicians and operators responsible for maintenance
and operations to diffuse the information contained in this handbook or use it
for purposes other than those closely linked to the good conservation of the
BLOCKSYSTEM PSF-SV, its use and maintenance. Cannot be held responsible or
prosecuted for damages caused by the incorrect use of the documentation. To
avoid incorrect operations which could be dangerous to people, it is important
to read and understand all the documentation supplied with the BLOCKSYSTEM P
-SF-SV.
INDEX
1 General information 1.1 General information 1.2 Property of information 1.3
Contents of use and maintenance handbook 1.4 Convention and definitions 1.5
Warranty 1.6 Support
2 Machine description 2.1 Control panel
3 Safety and technical data 3.1 Safety general information 3.2 Protection
device and solutions 3.3 Residual risk Warnings 3.4 Safety signs 3.5 Work Area
and position of the operator 3.6 Noise and vibration indications 3.7 Proper
and improper use of the machine 3.8 General warnings and behavioural norms 3.9
Machine data and technical features 3.10 Technical data and overal dimensions
4 Tarsport and installation 4.1 General information 4.2 Trasportation and
movement 4.3 Installation 4.4 Storage
5 Machine use 5.1 Machine use 5.2 Alarm signals
6 Maintenance and demolition 6.1 General maintenance information 6.2 Emergency
system 6.3 Cleaning and mantenamce 6.4 Out of service, dismantling and
demolition
7 Optional 8 Faults search 9 Attachments
Pag. 33 Pag. 33 Pag. 33 Pag. 33 Pag. 34 Pag. 36 Pag. 36
Pag. 37 Pag. 37
Pag. 38 Pag. 38 Pag. 38 Pag. 38 Pag. 41 Pag. 42 Pag. 42 Pag. 42 Pag. 42 Pag.
43 Pag. 43
Pag. 44 Pag. 44 Pag. 44 Pag. 45 Pag. 48
Pag. 48 Pag. 48 Pag. 53
Pag. 54 Pag. 54 Pag. 55 Pag. 56 Pag. 57
Pag. 67 Pag. 68 Pag. 149
P-SF-SV Pag. 32 Rev 01 07/14
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1. General Information
1.1.General Information
This Use and Maintenance Handbook is an integral part of the BLOCKSYSTEM P
SF – SV (identified, in this document, with the term MACHINE) manufactured by;
for this reason, it must accompany the MACHINE if transferred to a new user or
owner. This handbook must be carefully stored and protected from any agents
which could cause its deterioration, for the entire lifecycle of the machine.
This handbook was drafted for the purpose of providing operators and
technicians responsible for the maintenance of the machine with the essential
information and instructions to correctly operate the machine in safe
conditions.
ATTENTION: Please keep this manual in a safe and accessible place for use as
an immediate reference by any operator
or engineer.
This handbook contains all the data and information necessary for preliminary training of staff responsible for managing the MACHINE correctly; for this purpose, its use is compulsory.
DANGER: for clarity, some illustrations in this handbook show the machine or
its components when opened or
dismantled; it is however forbidden to use the machine in such conditions.
Even though all the attention notes and warnings for correct use of the MACHINE by the operators have been highlighted or to enable staff responsible for maintenance to intervene correctly, this handbook assumes that, in the environments in which the MACHINE is installed, all norms in force are complied with in relation to safety and hygiene in the workplace matters and that staff responsible for operation and maintenance have a level of training that allows them to correctly interpret the information reported.
NOTE:
the user can request a copy of this document (for example, in case of damage to the original document) by making a written request to the Manufacturer’s Technical Office (see Paragraph 1.6.1 Request for Support in this chapter), making a commitment, in any case, to replace the damaged copy.
1.2. Property of information
This Use and Maintenance Handbook contains confidential information. All
rights reserved. This handbook cannot be reproduced or photocopied, all or in
part, without the prior, written consent of the manufacturer. Use of this
documentation material is only permitted to the client to whom the handbook
was provided with the machine and only for purposes of installation, use and
maintenance of the machine to which the handbook refers. The manufacturer
declares that the information contained in this handbook complies with the
technical and safety specifications of the machine to which the handbook
refers. The drawings, diagrams and technical data reported are updated on the
date of publication of this document and are exclusively valid for the machine
to which they are attached. The manufacturer reserves the right to make
changes or improvements without prior notice to this documentation material.
The manufacturer does not assume any responsibility for direct or indirect
damage to persons, property or domestic animals as a result of use of this
documentation material or the machine in conditions other than those planned.
1.3. Contents of the Use and Maintenance Handbook
This Maintenance Handbook is for use by operators and technicians to allow
them to understand and correctly use the MACHINE. This handbook, in fact,
other than a functional description of the MACHINE and its main parts, also
contains the instructions and indications to:
transport and install the MACHINE correctly; correctly use the MACHINE;
conduct correct cleaning, regulation and maintenance of the MACHINE; pay
attention to the fundamental safety and accident prevention regulations. The
aforementioned staff will therefore have the chance to understand the
potential of the MACHINE and the problems that may arise during its
management. It is necessary to carefully read all the chapters to understand
the instructions provided in this handbook and to operate the MACHINE; for
subsequent, easy searches of the contents, refer to Table 1, containing a
description of the topics covered in the chapters.
CHAPTER
Chapter 1 General Information
Chapter 2 Machine description
Table 1 Layout of Use and Maintenance Handbook
CONTENTS
Description of this use and maintenance handbook, of its layout and the
conventions used; definition of the terms used; definition of the relationship
between the manufactures and the purchaser/user (in terms of the warranty and
support conditions).
Description of the MACHINE and its functioning.
RECIPIENTS
All staff using the MACHINE. All staff using the MACHINE.
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CHAPTER
CONTENTS
RECIPIENTS
Chapter 3 Safety and Technical
Data
Presentation of general indications for the MACHINE, on the solutions implemented to protect operator staff, on generic warnings to comply with to correctly, use the machine and the residual risks present during the phases of the life cycle of the MACHINE; presentation of the main technical data concerning the MACHINE.
Chapter 4 Transportation and
Installation
Description of the lifting and transportation modes of the MACHINE; description of the modes of connection to the power supply and of the appliances; description of the storage modes of the MACHINE.
Chapter 5 Machine use
Description of the procedures to follow in order to use the MACHINE.
Chapter 6 Maintenance and
Demolition
Description of the verification and control procedures of the parts and the components of the MACHINE (in particular, the parts most subject to wear out); description of the procedures that allow the appointed personnel to perform the cleaning of the MACHINE; presentation of the indications to perform the dismantling, demolition, and disposal of the MACHINE.
Chapter 7 Optional
Description of the possible optional features that can be installed on the MACHINE.
Chapter 8 faults search
List of the possible malfunctions of the machine and the relative solutions.
Chapter 9 Attachments
Indications for the retrieval of the: technical sheet of the MACHINE, refrigerant diagram, electrical wiring diagram of the MACHINE, documentation of the components present on the MACHINE.
1.4. Convention and Definitions
All staff using the MACHINE (in particular, the mechanic and electric
maintenance workers and the personnel appointed to its handling).
All staff using the machine (in particular the mechanic and electric
maintenance workers, the technicians of the Producer, and the personnel
appointed to handling.)
All staff using the MACHINE.
All staff using the machine (in particular the mechanic and electric
maintenance workers, the technicians of the Producer, and the personnel
appointed to handling.)
All staff using the MACHINE.
All staff using the MACHINE.
All staff using the MACHINE.
1.4.1. General Information
The Use and Maintenance Handbook of the MACHINE was divided into chapters to
enable, for each phase of the MACHINE life (transport, installation, use,
regulation, maintenance and decommissioning), easy availability of relative
necessary information for the user of the MACHINE. All the documentation
relating to the MACHINE was drafted by developing the topics indicated by the
Machinery Directive (2006/42/EC), PED Directive (97/23/CE) and the safety
norms in force; therefore, the complete reading of all the relative material
is indispensible to obtain the best performance from the MACHINE and ensure
maximum duration of all its units. The configuration of certain units or
devices described or shown in the documents can differ from that in the
MACHINE in the specific preparation according to particular requirements or
safety norms; in this case, certain descriptions, references or procedures
recommended can be generic in order to maintain their efficiency. Drawings
mentioned or photographs are provided for example purposes as a reference for
easy comprehension of the text.
1.4.2. Term conventions
MACHINE: the term used in this Use and Maintenance Handbook to indicate the
BLOCKSYSTEM SERIES P OR SF OR SV.
IPD: the acronym indicates Individual Protection Device/s.
1.4.3. Definitions
DANGER ZONE
USER
EXPOSED PERSON OPERATOR
Any ZONE inside or near the MACHINE in which the presence of an exposed person composes a risk to the safety and health of that person. Any PERSON (business person/company) adequately using the MACHINE or that assigns its use or operations connected to use to trained people. Any PERSON located inside or partly in the danger zone or near these zones. Staff, generally without specific skills, that conduct the operations necessary to operate the MACHINE and clean the MACHINE and the place in which it is installed; if necessary, the operator can conduct simple regulation and restore of functioning operations on the MACHINE.
MECHANICAL MAINTENANCE PERSON ELECTRICAL MAINTENANCE PERSON
QUALIFIED TECHNICIAN who can intervene on any mechanical unit to regulate or repair it and conduct the necessary maintenance operations. The mechanical maintenance person is not enabled to conduct intervention on the electrical systems when voltage is present. QUALIFIED TECHNICIAN responsible for all electrical intervention (regulation, maintenance and repairs) and, when necessary, works with voltage present inside the electrical cabinets and the shunt boxes.
MOVEMENT STAFF
QUALIFIED STAFF that perform the tasks of moving the MACHINE or the materials used if the operation requires the use of lifting devices.
P-SF-SV Pag. 34 Rev 01 07/14
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MANUFACTURER TECHNICIAN
QUALIFIED TECHNICIAN made available by the manufacturer of the MACHINE to conduct complex operations in particular situations or, however, when agreed with the user.
1.4.4. Individual Protection Devices and Behaviour Norms
For each of the operations described in this handbook, the individual protection devices were indicated for responsible staff which must be used (if necessary, in addition to those staff must wear when installing the MACHINE) and the behaviour norms that enable operator safety to be safeguarded.
NOTE:
Paragraph 3.8 General Warnings and Behaviour Norms in Chapter 3 Safety and Technical Data in particular reports a series of general recommendations to comply with to avoid risk conditions for people or damage to the machine.
1.4.5. Machine status
The status of the MACHINE is the feature that describes both the functioning
mode (for example, on and off) and the safety conditions present (for example,
guards included, guards excluded and electrical power sectioning).
1.4.6. Typographic conventions
The graphical settings of this Use and Maintenance Handbook enable easy
recognition of contents; in this optic, for example, the instructions are
associated with lists, indicated as follows:
this symbol identifies a generic pointed list or a pointed list formed by
simple actions (the order in which the actions are presented is not binding,
but recommended); 1. in this way an explanatory numbered list identifies a
complex procedure (the order in which the actions are presented is binding to
correctly and safely conduct the intervention in question). Text in Italics is
used, in particular for: cross references; cross references used in this
handbook are expressed in the following format: “Paragraph/Figure/Table” with
the number and, generally, the specification of the “Chapter” with the number
and relative name (when not specified it is assumed the paragraph, table or
figure belongs to the current chapter); technical and specialist terms, the
first time they appear in the text; foreign terms not commonly used (they too,
usually only the first time they appear in the text). Bold text is used to
highlight words, sentences or parts of procedures. In the description of the
MACHINE, its components, its use and maintenance, explanatory figures of the
portion in question are used and these identify the specific points of
interest, with the following notation:
number
Symbolic representation of a command or signalling device (for example, buttons, selectors or indicator lights).
-letter- or -number-
Symbolic representation of a part of the MACHINE.
Furthermore, to guarantee more in-depth knowledge of the MACHINE and the indications for its correct and safe use, the text of this Use and Maintenance Handbook comes with indications that complete it, providing additional news, indispensible attention or danger notes that are particularly significant to consider; the following notation is used in relation to this:
NOTE:
indicates the notes, the warnings, the suggestions and other points the reader should pay attention to or complete the explanation with further news.
ATTENTION: indicates situations or operations where there is a valid
possibility of causing damage to the machine, the
equipment connected to it or the environment.
DANGER:
indicates situations or operations which must be followed or information to which particular attention must be paid to avoid harming people.
GRAPHIC SYMBOLOGY USED TO INDICATE THE NEED FOR INDIVIDUAL PROTECTION DEVICES
This paragraph indicates the graphic symbols used in this handbook to indicate
the need to wear certain IPD.
Indicates the need to use suitable head protection to conduct the operation described.
Indicates the need to use suitable protective gloves to conduct the operation described (possibly dielectric to conduct electrical system intervention).
P-SF-SV Pag. 35 REV 01 07/14
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Indicates the need to use suitable protective clothing to conduct the operation described.
Indicates the need to use suitable safety footwear to conduct the operation described.
Indicates the need to use suitable protective goggles to conduct the operation described.
1.5. Warranty
1.5.1. General Conditions
The manufacturer, guarantees the BLOCKSYSTEM SERIES P SF -SV and its
equipment manufactured by the same manufacturer as being free of material and
manufacturing defects for a period agreed and stipulated in the sales contract
of the MACHINE.
1.5.2. Parts excluded from warranty
The warranty excludes pieces that wear and all consumable tools and materials
possibly supplied by the manufacturer with the MACHINE.
1.5.3. Responsibility of the User
The client is responsible for: electrical system set-up; consumable tools and
materials.
1.5.4. Operations causing warranty invalidity
Any attempt to dismantle, modify or tamper with a MACHINE component by the
user or by unauthorised staff leads to the warranty becoming invalid and
removes the manufactured from any responsibility regarding possible damage to
persons or property deriving from such tampering. The manufacturer is also
removed from possible responsibility and the warranty is invalid for the
MACHINE in the following cases:
unplanned use of the MACHINE (see Paragraph 3.6 Proper and improper use of
the machine Chapter 3 Safety and Technical Data); use contrary to requisites
in norms in force in the country of use; installing the MACHINE in conditions
other than those specified in Chapter 4 Transport and Installation;
connections non-conforming to specifications reported in Chapter 4 Transport
and Installation; use of work equipment other than those specified in Chapter
5 Machine Use and in Chapter 6 Maintenance and Demolition; total or
partial non-compliance with the instructions reported in this handbook; no or
incorrect maintenance; use of non-original parts or those not specified by the
manufacturer.
1.6. Support
Regarding maximum use of the performance provided by the MACHINE and the
extraordinary maintenance operations, this handbook does not replace the
experience of the installers, users or maintenance staff that is trained and
qualified. On the subject, the Technical Support Service of provides:
telephone support on the features and simplest interventions to conduct on the
MACHINE ; sending of documentation material;
ATTENTION:
in case of doubt on the correct interpretation of instructions in this Use and Maintenance Handbook, contact the Technical Support Service (as indicated below) to obtain the NECESSARY clarifications.
1.6.1. Intervention Support Requests
To contact the Technical Support Service contact the:
During the requests for support, specify the name, model and registration of the machine.
P-SF-SV Pag. 36 Rev 01 07/14
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2. Machine description
The machine represents a refrigerating unit composed of a condensing unit
(coldroom exterior), an evaporating unit (coldroom interior) and an electronic
control panel located inside the condensing unit. The refrigerant follows the
compression refrigerating cycle system. The machine can be equipped with a hot
gas defrosting system (MBP and LBP), a ventilation defrosting system (HBP) or
an electrical defrosting system, which is run with an electronic control unit.
Defrosting occurs automatically with a cyclical frequency that can be
controlled by the user; it can be activated, also manually, using the relevant
control. This solution allows you to have a product that is easy to use,
simple to install and offering maximum versatility. The use of state of the
art technological solutions has enabled optimisation of the dimensions of the
machines, improving their installation modes, especially on the compact
coldrooms. The PT model is a wall Blocksystem for the refrigeration of
coldrooms from 2 HP to 20 HP. Specifically, the P model comes in a plug-in
(PT) or saddle version (PA). The SF model is a ceiling Blocksystem for the
refrigeration of coldrooms from 1/3 HP to 4 HP. The SV model is a wall
Blocksystem for the refrigeration of coldrooms from 3/7 HP to 1.5 HP.
2.1. Control panel
Below (Table 2) reports the description of the commands on the management
software.
Figure 1 Control panel
SIMBOL
Table 2 commands descriptions.
DESCRIPTION
Green “COMPRESSOR” LED
OFF: The compressor is off LIT: The compressor is operating. BLINKING: The
switch on request is pending (delays or protective devices activated)
Green “FANS” LED
OFF: The fans are off LIT: The fans are operating BLINKING: The switch on
request is pending (delays or protective devices activated)
Green “DEFROSTING” LED OFF: Defrosting is not activated LIT: Defrosting is in
progress BLINKING: Manual defrosting is in progress; a defrosting request is
pending (delays or protective devices activated); network synchronised
(master/slave) defrosting Yellow “ALARM LED” OFF: No alarm is in progress LIT:
A serious alarm is in progress (and alarm relay activated) BLINKING: A non-
serious alarm is in progress or a serious alarm has been silenced (alarm relay
deactivated)
“SETPOINT” key + “SETPOINT/REDUCED SET” green LED LIT: The setpoint is
displayed BLINKING: The reduced set is activated ENTER” key: This is used to
set the setpoint, to access the programming menu, and to view the machine
status (if held down for 1 second); to enter the programming mode, this key
must be held down for 5 seconds.
P-SF-SV Pag. 37 REV 01 07/14
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SIMBOL
DESCRIPTION
“UP” key: This is used to command manual defrosting (if held down for more than 5 seconds) as well as to increase the value of the parameter being displayed and to scroll forwards through the menu list.
“ON/OFF” key: This is used as a manual on-off control, to confirm a parameter value and it also allows you to return to the previous menu. To switch the machine on or off, hold this key down for more than 5 seconds.
“DOWN” key: This is used to command the lights manually (if held down for 1
second); it also decreases the value of the parameter being displayed and
scrolls back through the menu list.
3. Safety and Technical Data
3.1. Safety General Information
3.1.1. Engineering Criteria
For the machine design, the principles and concepts introduced in the relevant
paragraphs of the norms indicated in Table 3 were implemented.
Table 3 Main norms used in the machine design.
NORM
TITLE
UNI EN ISO 12100-1: 2009
Safety of the machinery – Key concepts, general engineering principles – Part 1: Base terminology, methodology
UNI EN ISO 12100-2: 2009
Safety of the machinery – Key concepts, general engineering principles – Part 2: Technical principles
UNI EN ISO 14121-1: 2007
Safety of the machinery – Evaluation of the risks – Part 1: principles
UNI EN ISO 13857: 2008
Safety of the machinery – Safety distances to prevent upper and lower limbs from reaching dangerous areas
UNI EN 953: 2009
Safety of the machinery – Guards – General requisites for the engineering and the construction of the fixed and mobile guards
CEI EN 60204-1: 2006
Machinery safety Electrical equipment on the machine – Part 1: General rules:
CEI EN 60335-1: 2008
Safety of the electrical equipment intended for domestic use and other similar equipment – Part 1: General norms
The compliance of the paragraphs to the aforementioned norms has enabled risks to be eliminated or reduced as much as
possible, both during normal functioning and during regulation and maintenance operations, for the entire lifecycle of the machine. The components used were carefully chosen among those available on the market and the materials composing the machine (and the machine accessory tools) present no risks to personal health and safety. All the parts provided by third parties are CE marked (when planned) and comply with the relevant reference directives. All the details were closely controlled in compliance with the qualitative standards prescribed by the laws in force. For the machine, the warning and protection measures were also implemented that are necessary to confront residual risks (see
Paragraph 3.3 Residual Risk Warnings on this).
3.2. Protection Devices and Solutions
3.2.1. Passive Safety Devices
The machine includes implemented devices and construction solutions as
described below. Fastened guards, on all sides of the machine, which enclose
the entire body of the machine. Fastened guards in metal or plastic mesh over
the mobile units. Safety signs corresponding to the machine protections.
3.2.2. Active Safety Devices
The machine includes active safety devices as described below. Safety pressure
switch on the compressor Security valve (when provided)
3.3. Residual Risk Warnings
To avoid all dangerous conditions for people or damage to the machine caused by residual risks, i.e. those risks that persist despite all the devices implemented, or potential risks that are not obvious, the manufacturer recommends the operators, maintenance staff and all staff working on the machine scrupulously follow the warnings on the following pages.
P-SF-SV Pag. 38 Rev 01 07/14
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ATTENTION:
always comply with the notifications and instructions on the plates applied to the machine and operate exclusively based on the instructions provided in this handbook (for example those reported in Paragraph 3.8 General Warnings and Behaviour Norms).
3.3.1. Lifting and Transportation
3.3.1.1. Residual Risks During Lifting and Transport Phases
During the lifting and transport phases, risks are present related to:
operations on the machine by staff that is unqualified, untrained, uninformed
or not correctly equipped. wrong choice or wrong use of transport and movement
vehicles (for example, forklift or hoist) for the machine; crushing of
operators responsible for movement; loss of load stability during the
operations in question; projection of mobile parts of the machine that cannot
be adequately removed or fastened; knocking of parts or machine components
with people or property due to sudden movements of the machine or incorrect
behaviour of the employees conducting the operation; knocking or falling of
machine components, damaging the machine and the relative protections;
possible unhealthy or excessively forced movements by transport and movement
operators of the machine components.
3.3.1.2. Necessary Individual Protection Devices
3.3.1.3. Attention Warnings During Lifting and Transport Phases
During the lifting and transport phases, it is necessary to follow the
attention warnings in this paragraph. Only appoint specialist and trained
staff for these operations for machinery movement operations that are capable
of choosing and using the lifting and transport vehicles in a safe manner most
appropriate for the situation (for example a crane or hoist). Check and, if
necessary, ensure that all the parts capable of moving are correctly fastened
(or, if planned, removed and reassembled when the operation is complete). Do
not lift, for any reason, the various parts of the machine by grabbing them by
non-structural elements (for example, cables or sheaths). Ensure there are no
people near the zone where the lifting, movement and unloading operations take
place and always keep a safe distance. Always give warning of the start of
manoeuvres. Do not transit under suspended loads. Do not carry anyone on the
loads.
3.3.2. Installation and Connection
3.3.2.1. Risks During Installation and Connection Phases
During the installation and connection phases, risks are present related to:
operations on the machine by staff that is unqualified, untrained, uninformed
or not correctly equipped. contact with electrically powered elements;
knocking or crushing by moved machine components; tripping or falling over
electrical power connections; machine damage during the installation and
connection phases.
3.3.2.2. Necessary Individual Protection Devices
3.3.2.3. Signs Present
The machine is supplied with specific danger and forbidden signs; see
Paragraph 3. 4 Safety Signs.
3.3.2.4. Attention Warnings During Installation and Connection Phases
During the installation and connection phases, it is necessary to follow the
attention warnings in this paragraph. Follow the instructions relating to
safety reported in Paragraph 3.3.1 Lifting and Transport during the
necessary movement operations of the machine components. Use the auxiliary
equipment and, however, any other machinery or equipment (electrical or
pneumatic) only having understood the instructions reported in the relative
Use and Maintenance Handbook or after specific and formal training. Choose an
installation location which: includes sufficient space for normal use and
maintenance of the machine, enables the correct connections necessary for
machine functioning,
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In relation to electrical energy, the earthing system connection must be
connected before any other connection to the electrical mains line. Protect
connection tubing to energy sources using adequate rigid sheathing or cable
passages. Conduct the intervention requested using standardised work tools
(ladders, various tools) and pay maximum attention to elements that could
cause tripping or cause cuts and trauma. The operational settings of the
machine cannot be dealt with until the machine is inspected: the presence of
possible assembly or installation errors could in fact lead to serious
accidents for the operators responsible for the operations. Before proceeding
with the inspection and the first functioning of the machine, check its parts
do not present any physical damage due to knocks, tears or abrasion and that
all the connections present were correctly conducted, with no possibility of
disconnection.
3.3.3. Machine use
3.3.3.1. Residual Risks during Machine Use Phase
During machine use the following risks are present due to: use of the machine
by staff that is unqualified, untrained, uninformed or not correctly equipped.
contact with electrically powered parts;
3.3.3.2. Necessary Individual Protection Devices
3.3.3.3. Signs Present
The machine is supplied with specific danger and forbidden signs; see
Paragraph 3. 4 Safety Signs.
3.3.3.4. Attention warnings during machine use
During use of the machine, it is necessary to follow the attention warnings in
this paragraph. Only use the machine if all the safety protection devices are
intact. Do not remove, for any reason, the safety devices and protections
installed.
Comply with all the safety and danger signs affixed to the machine. Ensure all
the safety and danger signs affixed to the machine are legible. Wear all the
IPD necessary, regularly checking their integrity (immediately signal any IDP
that are no longer capable of conducting the specific task they were assigned
for). Do not intervene on the machine without having fully and carefully read
this handbook. Use the auxiliary equipment and, however, any other machinery
or equipment (electrical or pneumatic) only having understood the instructions
reported in the relative Use and Maintenance Handbook or after specific and
formal training. Immediately signal functioning anomaly situations. Do not
conduct any intervention (including cleaning) on movement units or hot
surfaces. Do not conduct unpermitted operations on the machine (refer to the
instructions reported in this handbook). Do not use the machine when under the
influence or medicine or beverages that can slow your reflexes.
3.3.4. Maintenance and Demolition
3.3.4.1. Risks During Maintenance and Demolition Phases
During the maintenance and demolition phases, risks are present related to:
operations on the machine by staff that is unqualified, untrained, uninformed
or not correctly equipped. contact with powered electrical parts; knocking or
crushing by moved machine components; contact with hot elements on the machine
or relative equipment; contact with the refrigerant.
3.3.4.2. Necessary Individual Protection Devices
3.3.4.3. Signs Present
The machine is supplied with specific danger and forbidden signs; see
Paragraph 3. 4 Safety Signs.
3.3.4.4. Attention warnings during maintenance and demolition Phases
During the maintenance and demolition phases, it is necessary to follow the
attention warnings in this paragraph. Conduct the interventions requested
using the standardised work tools (ladders, various tools) and always wearing
the necessary IPD. The implementation of maintenance and demolition
interventions must be performed by qualified, specifically trained staff.
Check that the power supplies are adequately sectioned and that nobody can
reactivate them prior to concluding the requested interventions (use of locks,
adequate signs and consolidated work procedures); also check that any residual
energy was discharged before conducting the intervention.
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Operate, as much as possible, on the machine and the tubing only after
emptying it and before proceeding to restarting, guaranteeing adequate
cleaning of the system. Obtain the necessary work permits and check all the
preparation procedures of the machine for maintenance operations are correctly
conducted. Use the auxiliary equipment and, however, any other machinery or
equipment (electrical or pneumatic) only having understood the instructions
reported in the relative Use and Maintenance Handbook or after specific and
formal training. Do not use, for any reason, petrol, solvents or inflammable
fluids to clean parts, but use commercial, approved detergent that is
inflammable and non-toxic. Do not make changes, transformations or
applications to the machine that could prejudice safety, without having
obtained written authorisation from the manufacturer. Before restarting the
machine, check that all the safety devices of the machine were restored.
3.4. Safety signs
Signaling labels are present on the machine, which are indicated in Table 4.
Table 4 Description of the signaling labels present on the machine.
LABEL
DESCRIPTION
This label indicates that it is forbidden to remove the safety devices and
A
protections installed on the machine; it is usually accompanied by the
explicatory writing: DO NOT REMOVE THE PROTECTION DEVICES.
This label indicates that it is forbidden to perform any intervention (including
B
lubrication and cleaning) in proximity of moving parts; it is usually accompanied by the explicatory writing: DON NOT REPAIR OR REGULATE DURING
MOTION.
C
This label warns about the danger due to the presence of mobile parts in proximity of the area in which the machine is positioned.
D
This label warns about the danger due to the presence of warm surfaces in proximity of the area in which the machine is positioned.
E
This label warns about the danger due to the presence of elements under voltage in proximity of the area in which the machine is positioned.
F
This label warks about the obligation to read the manual for the installation
P-SF-SV Pag. 41 REV 01 07/14
UK
G
Warning to the sharp parts durino condenser cleaning
3.5. Work Area and Position of the Operator
The machine functions automatically requesting the intervention of the
operator corresponding to the control and command software only to manually
start and stop and for functioning programming. The operator’s work area
therefore exclusively corresponds to the control panel on the machine.
3.6. Noise and Vibration Indications
3.6.1. Noise
BLOCKSYSTEM P – SF – SV were designed and manufactured to reduce the noise
emitted during normal functioning to a minimum. The level of mass acoustic
pressure A generated by BLOCKSYSTEM P – SF – SV and measured, following the
criteria set by the norms in force, during functioning is less than 70 dB (A).
3.6.2. Vibrations
In use conditions in compliance with the instructions supplied by the
manufacturer in this handbook, the vibrations were not such to create
dangerous situations. The operator however, if vibrations occur, should
immediately stop the machine and signal the phenomenon to the manufacturer’s
support service.
3.7. Proper and Improper Use of the Machine
The machine was designed and manufactured exclusively for industrial and
commercial refrigeration in stable locations. Blocksystem P and SV were
exclusively designed to be installed on vertical walls. Blocksystem SF was
designed exclusively to be installed on horizontal walls (ceiling). The
MACHINE can exclusively use the refrigerating gas for which it was designed
(typically R404A). As an optional the manufacturer can create machine models
capable of using other refrigerating gas (for example R134a). Assess what is
reported on the label of the machine to identify the refrigerating gas for
which the machine was designed and manufactured. The machine was designed and
manufactured to work in environments free of a potentially explosive
atmosphere and as such cannot generate a potentially dangerous atmosphere. The
machine must be adequately protected from the weather elements It is good
safety practice to place powder extinguishers near the machine. To prevent the
possibility of fire, it is necessary to keep the machine clean of pieces of
plastic, oil, solvents, paper and rags. The use of the machine for different
operations could cause damage to persons or the machine itself and is
therefore considered improper use for which the manufacturer cannot be held
responsible.
WARNING:
in case of a different destination of use, it is indispensible to consult the Manufacturer’s Technical Office in advance.
3.8. General Warnings and Behavioural Norms
To avoid any risky conditions to people or damage to the machine, we recommend
you scrupulously follow the general warnings and behavioural norms reported
here.
DANGER:
the manufacturer declines all responsibility for any damage to property and/or persons deriving from improper interventions conducted by unqualified, untrained or unauthorised staff.
The operators responsible for machine management must be adequately trained to use it at its best and without risk and must operate in a comfortable environment that guarantees the best safety and hygiene conditions possible.
DANGER:
prevent the machine being used by unauthorised staff or untrained staff without supervision: in fact, before starting work, each operator must be perfectly aware of the position and functioning of all the controls and features of the machine. Furthermore, the operator must have read this handbook ENTIRELY.
Before using the machine, ensure that any dangerous conditions to safety are adequately eliminated and that there are no operators present in the danger zones near the machine. Before using the machine, ensure all the guards are in place and that all safety devices are present and efficient. Warn supervisors of any functioning irregularities in the machine or any problems relating to the integrity of the machine protections. Carefully read the machine labels. Do not cover them for any reason and replace them immediately if damaged. Do not rest liquid containers on the machine. Consult this handbook on the safety specifications in force and the specific IPD to implement for personal safety; in particular, however, the staff responsible for the machine must wear suitable clothing, by avoiding or paying due attention to:
P-SF-SV Pag. 42 Rev 01 07/14
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loose clothing, wide sleeves, ties or hanging scarves, necklaces, bracelets and rings. Staff responsible for maintenance of the machine must be aware of all the procedures reported in Chapter 6 Maintenance and Demolition and be adequately prepared technically to correctly interpret the instructions and diagrams in this handbook and to intervene on the machine. The area where the maintenance operations take place must always be clean, dry and with suitable equipment always available and efficient. The work area must never be occupied in such a manner to interfere with the free movement of the operator. In case of emergency, immediate access to the machine must be guaranteed for responsible staff. In the aforementioned area, access to people who are not directly responsible for machine functioning is forbidden, to avoid danger due to distraction or negligence during machine intervention. If intervention has to be conducted near the electrical components, work with dry hands and use dielectric gloves (working on electrical components with wet hands leads to almost certain danger of electrical shock).
DANGER:
you should ensure that before starting any type of machine intervention or corresponding to its components or accessory equipment to section power; if this is not possible, it is necessary to take measures to allow you to operate on the machine in safe conditions.
DANGER:
tampering or unauthorised replacement or one or more parts of the machine and use of accessories, tools or consumable materials other than those indicated by the manufacturer can generate danger of injury.
ATTENTION:
all the materials with environmental impact which must be eliminated after interventions or processes on the machine must be disposed of according to norms in force. If necessary, entrust specialist structures to dispose of them.
3.9. Machine Data and Technical features
3.9.1. Identification Plate
To identify the machine, a CE identification plate is affixed to it; the
identification data reported on this plate must be notified to the
manufacturer’s offices on each request for intervention or to order spare
parts. Specifically, the identification plate reports the following data:
code, registration, ampere absorption (A), Watt absorption (W), refrigerant
type, power voltage (Volt/Ph/Hz), maximum operating pressure PS HP (high
pressure side) PS LP (low pressure side), maximum operating temperature TS
HP (high pressure side) TS LP (low pressure side), overall class according
to directive 97/23/ CE (PED).
Registration Identification figure 1 and 2 = last two figures of year of
manufacture, figure 3 and 4 = week of year in which the machine was
manufactured, figures 5, 6 , 7 and 8 = progressive number.
LABEL
3.10. Technical Data and Overall Dimensions
The technical features of the machine are found in Chapter 9 Attachments in
this handbook.
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UK
4. Transport and Installation
4.1. General information
The installation and possible re-installation of the machine must be conducted
directly by qualified staff. Before proceeding to installing the machine, it
is necessary to prepare the power supplies and utilities necessary for the
correct functioning of the system, following the indications reported in this
chapter and, if necessary, consulting the manufacturer’s Technical Office in
advance.
ATTENTION:
This product as sold complies with the 97/23CE (PED) standard and is marked with the relevant category. After purchase it is the responsibility of the owner to ensure that this equipment is regularly maintained continue its compliance up to the stage when it is finally decommissioned according to the relevant national law.
DANGER:
the manufacturer declines all responsibility for any damage to property and/or persons deriving from improper interventions conducted by unqualified, untrained or unauthorised staff.
4.1.1. Power and Utilities
The power supplies and utilities necessary (responsibility of the purchaser)
for machine functioning exclusively consist in the supply of electrical
energy. Unless otherwise indicated, the purchaser is responsible for:
the preparation of transport vehicles to transport the machine to the assembly
or installation location; the preparation of equipment necessary for assembly
and installation; the preparation of the installation location; the
preparation of auxiliary vehicles and consumable materials (for example, non-
flammable and non-corrosive detergents, materials and tools necessary for
cleaning and cover).
4.2. Transportation and Movement
The indications contained in this paragraph must be complied with during the
transport and movement phases of the machine, which can occur in the following
situations:
machine storage; assembly and first installation of the machine; de-
installation and dismantling of the machine; moving and relocating the
machine.
DANGER:
the manufacturer declines all responsibility for any damage to property and/or persons deriving from improper interventions conducted by unqualified, untrained or unauthorised staff.
To conduct the task in question, the following Individual Protection Devices are necessary:
During transport or movement of the machine, it is necessary to follow the
warnings below: Check the lifting equipment is suitable for the weight and
dimensions of the machine. Do not bang the structure or guards of the machine
with equipment or otherwise.
4.2.1. Lifting
DANGER:
lifting operations must be conducted with the direct supervision of a qualified mechanical maintenance person or a manufacturer technician.
Lifting to move and subsequently position the machine can be performed using any adequate vehicle that guarantees its lifting in a safe and efficient manner (for example a hoist using a harness system for the machine). See Figure 2.
P-SF-SV Pag. 44 Rev 01 07/14
Modell SF
Figure 2 Lifting the machine.
Modell P
UK
To correctly perform the lifting operations, follow the warnings reported
below. Never use two lifting vehicles simultaneously. Never stay under
suspended loads. If using steel ropes, always apply the end eye to the lifting
hook. If using steel ropes, pay attention not to create sharp bends, i.e. with
a bending radius lower than that of the rope end eyelets. Use adequately wide
ropes, to enable the angle between the ropes and the horizon to always be over
45°.
4.2.2. Machine movement
For reduced distances, as in the case of transport to the assembly or storage
locations of the machine, it is necessary to use lifting equipment (for
example, forklift and hoists) suitable for the dimensions and weight of the
machine.
ATTENTION:
during all these operations follow the precautions necessary to avoid knocking and tipping over, moving the machine in a manner not to loose balance.
DANGER:
ensure there are no unauthorised staff near the zone where the lifting, movement and unloading operations take place and always keep a safe distance.
4.3. Installation
DANGER:
the manufacturer declines all responsibility for any damage to property and/or persons deriving from improper interventions conducted by unqualified, untrained or unauthorised staff.
To conduct the task in question, the following Individual Protection Devices are necessary:
The Blocksystem P SV must be installed in locations where good recycling and
exchange of air is guaranteed and must only be installed on vertical walls.
The Blocksystem SF must be installed in locations where good recycling and
exchange of air is guaranteed and must only be installed on horizontal walls
(ceiling). For other installations, we recommend you contact the manufacturer.
For positioning of a mono-condensing unit and the evaporator, comply with the
minimum heights reported in Figure 3
Figure 3 Minimum compliance heights.
se t on off
P-SF-SV Pag. 45 REV 01 07/14
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During installation, leave the machine sufficient space to conduct maintenance
in safe conditions. For correct functioning of the machine, we recommend the
following minimum thicknesses of the coldroom walls (polyurethane insulation):
MBP and HBP coldroom insulation thickness 60 mm; LBP coldroom insulation
thickness 100 mm.
4.3.1. SF Series Installation Method
To proceed to installation of the machine, implement the following procedure:
- On the ceiling of the coldroom, based on the model, make a hole of suitable
dimensions as indicated in the pages from
Figure 13 to Figure 17 of Chapter 9 at the end of the handbook. 2. Position the anti-condensate slab supplied along the perimeter of the hole. 3. Lift the machine with the hoist or another suitable vehicle in compliance with the lifting instructions in Figure 2. 1. Position the machine in the hole made in the ceiling of the coldroom and place the evaporating part in from outside. 5. Fasten the machine to the ceiling of the coldroom with self-threading screws using the two brackets and the screws supplied
(Figure 4). 6. Seal the perimeter of the aluminium conveyor with silicon (suitable for use in the coldroom) to avoid infiltration of warm air
inside the coldroom. Figure 4 Machine positioning in coldroom.
ATTENTION:
the machine is equipped with a condensate water evaporation tank. We recommend you connect a rubber tube to the overflow tube to enable evacuation of water in case of functioning or use anomalies.
4.3.2. P Series Plug-In Version Installation Method
To proceed to installation of the machine, use the following procedure: 1. On
the wall of the coldroom, based on the model, make a hole of suitable
dimensions as indicated in the pages from Figure
8 to Figure 12 of Chapter 9 at the end of the handbook. 2. Lift the machine
with the hoist or another suitable vehicle in compliance with the lifting
instructions in Figure 2. 3. Position the machine in the hole made in the wall
of the coldroom and place the evaporating part in from outside. 4. Fasten the
machine to the wall of the coldroom using the specific screws supplied. 5.
Seal the perimeter of the plug-in with silicon (suitable for use in the
coldroom) to avoid infiltration of warm air inside the
coldroom. On the upper side, perform the operation before positioning.
ATTENTION:
if the machine has a condensate water evaporation tank, we recommend you connect a rubber tube to the overflow tube to enable evacuation of water in case of functioning or use anomalies.
ATTENTION:
if the machine is not equipped with a condensate water evaporation tank, lengthen the drainage tube outside the coldroom by using a siphon
Models PTM300 / PTM370 / PTL350 / PTL450 have two support legs supplied. For assembly positioning, see Figure 12.
P-SF-SV Pag. 46 Rev 01 07/14
Figure 5 Machine positioning in coldroom.
UK
4.3.3. P Series Saddle Version Installation Method
To proceed to installation of the machine, use the following procedure: 1.
Before assembly on the coldroom ceiling, make 2 grooves on the upper ends of
the wall and a hole for water drainage, as
indicated in the pages in Figure 9 at chapter 9 at the end of handbook 2. Lift
the machine with the hoist or another suitable vehicle in compliance with the
lifting instructions in Figure 2. 3. Position the machine on the grooves made
on the wall of the coldroom. 4. Fasten the machine to the wall of the coldroom
using the specific screws supplied. 5. Seal the perimeter of the grooves with
silicon (suitable for use in the coldroom) to avoid infiltration of warm air
inside the
coldroom (Figure 6). 6. Remove the front panel of the machine. Insert the
defrosting water drainage tube supplied, in the evaporator tank tube
making it pass through the hole made on the wall of the coldroom (Figure 6).
Then, from the other end, bring the water evaporation tank in, creating a
siphon on the end part.
Figure 6 Machine assemble saddle version.
Having connected the tubes, check the perfect functioning of the water drain.
ATTENTION:
if the machine has a condensate water evaporation tank, we recommend you connect a rubber tube to the overflow tube to enable evacuation of water in case of functioning or use anomalies.
ATTENTION:
if the machine is not equipped with a condensate water evaporation tank, lengthen the drainage tube outside the coldroom by using a siphon.
4.3.4. SV Series Installation Method
To proceed to installation of the machine, use the following procedure: 1.
Make a hole on the walls of the coldroom of suitable dimensions as indicated
in the pages of Figure 18 and Figure 19 of
Chapter 9 at the end of the handbook. 2. Position the anti-condensate slab
supplied along the perimeter of the hole. 3. Lift the machine with a hoist or
with another suitable vehicle. 4. Position the machine in the hole made in the
wall of the coldroom and place the evaporating part in from outside. 5. Fasten
the machine to the wall of the coldroom with self-threading screws using the
two brackets and the screws supplied. 6. Seal the perimeter of the aluminium
conveyor with silicon (suitable for use in the coldroom) to avoid infiltration
of cold air
inside the coldroom.
ATTENTION:
the machine is equipped with a condensate water evaporation tank. We recommend you connect a rubber tube to the overflow tube to enable evacuation of water in case of functioning or use anomalies.
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4.3.5. Connection to electrical power mains
The electrical power supply (also in terms of voltage and frequency) supplied
by the purchaser must be sufficient to correctly power the machine.
Specifically the following instructions must be followed:
The power cable must be laid out (no rolling or overlapping) in a position not
exposed to possible knocks or tampering. It must not be near liquids, water or
heat sources and must not be damaged (if so, replace it using qualified
staff). Prepare a thermo-magnetic differential switch between the power line
and the machine — and ensure the voltage of the line corresponds to the
voltage indicated on the plate (see label applied to the machine); tolerance
permitted ± 10% of nominal voltage.
ATTENTION:
the thermo-magnetic differential switch must be placed in the immediate vicinity of the machine to ensure it is well visible and reachable by the technician in case of maintenance.
It is necessary for the section of the power cable to be adequate to the power absorbed by the machine.
ATTENTION:
It is compulsory, pursuant to law, to connect the machine to an efficient earthing system. All responsibilities are declined for non-compliance with this directive; all responsibility is declined if the electrical system used for connection is not implemented according to laws in force.
Fasten the micro-door supplied on the door jamb of the coldroom which automatically causes, on opening, the lights in the coldroom to switch on and the compressor and fans to stop in the evaporator and condenser.
ATTENTION:
the micro-door cable must pass far from the cables with electrical power to avoid signal disturbances.
Fasten the light and connect the coldroom light cable following the instructions reported inside the support. With the LBP range units (-15°C/-25°C) a cable is supplied for connection of the door tolerance. This connection must be conducted using a fuse dimensioned based on the tolerance of the door used.
ATTENTION:
do not connect the COLDROOM LIGHT and DOOR TOLERANCE cables to the 230 Volt line. The plates attached to each cable indicate the connection to perform. The maximum power of the lighting unit which can be connected to the coldroom light cable (supplied) is 100W for incandescent lights and 66W for neon lights (230V-50Hz power). The maximum power of the tolerance which can be connected to the door tolerance cable (supplied on all the LBP models) is 300W (230V- 50Hz power).
4.4. Storage
If necessary to store the machine for a period before installation (or
following de-installation), we recommend you protect it adequately and store
it in a suitable environment, with the following features:
external surfaces resistant to atmospheric agents; protected against access to
unauthorised people; with the following environmental conditions: good
ventilation; room temperature between -20 °C and +50 °C; relative humidity of
compressed air 30% and 80%; possibly in dry, dust-free atmosphere.
ATTENTION:
do not remove any packaging possibly present for certain components of the machine and take adequate precautions to protect the exposed parts.
4.4.1. De-installation
If the machine must be de-installed, proceed following the inverse order for
installation reported in Paragraph 4.3 – Installation.
DANGER:
the manufacturer declines all responsibility for any damage to property and/or persons deriving from improper interventions conducted by unqualified, untrained or unauthorised staff.
To conduct the task in question, the following Individual Protection Devices are necessary:
5. Machine use
5.1. Machine use
DANGER:
for the machine, only operators correctly training and informed on the risks present can intervene on the machine and only having fully read this use and maintenance handbook. the manufacturer declines all responsibility for any damage to property and/or persons deriving from improper interventions conducted by unqualified, untrained or unauthorised staff.
P-SF-SV Pag. 48 Rev 01 07/14
To use the machine, the following Individual Protection Devices are necessary:
UK
5.1.1. Operation
Before starting the machine, it is necessary to ensure: the locking screws are
tight; the electrical connections were correctly installed; the coldroom door
is closed to ensure the micro-door contact is closed.
5.1.2. Switch on/off
To switch on (off) the machine, it is necessary to press the “ON/OFF” key for
5 seconds placed on the control panel.
ATTENTION:
when the machine is powered, the control panel display shows the writing OFF alternated with the temperature of the coldroom.
5.1.3. Parameter variation procedure
Functioning of the Blocksystem series SF, series P and series SV is regulated by the parameters set in the memory of the electronic
central unit by the manufacturer (see Table 6). We recommend you do not change these values unless strictly necessary and in
any case always contact the enabled staff. As well as for functioning, the parameters are sub-divided by safety/accessibility level:
level 0
SETPOINT parameters
direct access (see Paragraph 5.1.3.1);
level 1
frequent use parameters access without password (see Paragraph 5.1.3.2).
The parameters can be changed on the keyboard, via the LAN (Master/Slave) network or using the Supervision network.
5.1.3.1. Coldroom temperature regulation
The fields of the temperature values for which the Blocksystem series
SF,series P and series SV can operate are reported in Table 5.
Table 5 Temperature value fields.
Minimum
Maximum
High temperature HBP
+2
+10
(Not planned for SV)
Medium temperature MBP
– 5
+ 5
Low temperature LBP
– 25
– 15
It is possible to access the regulation set point of the temperature in a direct manner to display or change the value. In relation to
this, implement the following procedure:
1. Press and release SETPOINT: the display shows “SET” (if there are alarms ongoing the procedure is slightly different; see
Paragraph 5.1.4)
Press SETPOINT: in this way the green SET led switches on and the display shows the SETPOINT value.
3. Press UP and DOWN to set the new value.
4. Press SETPOINT or ON/OFF (or wait for the 5 second timeout) to confirm the value; in this way the SET led switches off and
the display shows “SET”.
5. Press ON/OFF (or wait for the 5 second timeout) to return to normal view.
5.1.3.2. Change level 1 parameters
To change the parameters corresponding to level 1, use the following procedure:
1. press SET for 5 seconds until the displays shows “reg” (regulation parameters);
press UP and DOWN to display the desired menu on the display;
3. press SET to access the menu; in this way the code appears of the first parameter of the menu selected;
4. press UP and DOWN to display the desired parameter; 5. press SET to
display the parameter value; 6. press UP and DOWN to set the desired value; 7.
press SET to confirm the value and return to the parameters list; or press
ON/OFF to confirm the value and return to menu
list; 8. to pass to the parameters list to the menu list press ON/OFF;
to exit the change parameters procedure press ON/OFF again.
If you don’t press one of the keys for more than 15 seconds, the possible value display is stored in the relative parameter and you
are forced to exit the change parameters procedure.
5.1.4. Machine status view
To view the machine status, use the following procedure:
press and release SET: the display shows “SEt” or “AAL” if alarms are ongoing;
press UP and DOWN to view the relevant status. The statuses could be:
AAL alarms ongoing (if present)
SEt setpoint
Pb1 coldroom temperature probe value
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Pb2 evaporator temperature probe value Pb3 probe value 3 (if present) Out relay outputs status InP digital inputs status 3. press SET to display the value; 4. in the case of alarms status, outputs status, inputs status, press UP and DOWN to scroll respectively the ongoing alarms, the outputs and the inputs; 5. press SET or ON/OFF (or wait for the 5 second timeout) to return to the list of statuses; 6. press ON/OFF (or wait for the 5 second timeout) to return to normal view.
Code Level Descr.
Table 6 Machine parameters.
Range
PPA SEt diF CA1 CA2 CA3 Ont OFt
dOn
dOF dbi OdO
dtY*
dit
List of -PPS passwords
Parameters access password
0 … 255
Entering a pre-set password will give access to protected parameters
List of -rEG adjustment parameters
0 Setpoint
LSE …HSE
1 Differential
0.1 …
temperature > setpoint + diff. -> adjustment On temperature setpoint -> adjustment Off
50.0
List of -Pro probe parameters
1 Probe 1 calibration
The value assigned to this
1 Probe 2 calibration 1 Probe 3 calibration
parameter is added to (positive
-20.0 …
value) or taken away from (negative
20.0
value) the temperature detected by
the probe
List of -CPr compressor parameters
1 Compressor ON time in the In the event of an adjustment probe
0 … 60
event of probe failure
error, the compressor is enabled in
1 Compressor OFF time in the cyclical mode with set operation and
0 … 60
event of probe failure
off times. In particular:
Ont=0: the compressor remains off
Ont>0 and OFt=0: the compressor
remains on
1 Compressor activation delay
0 … 250
The time, starting from the switch on request, after which the
compressor is effectively activated.
In the event of network control in sequential mode, this represents the
activation delay from compressor to compressor
1 Minimum compressor OFF time
0 … 60
The time, starting from the moment of deactivation, for which it is not
possible to restart the compressor
1 Delay between switch on times
0 … 60
The time, starting from the moment of previous activation, for which
the compressor cannot be restarted.
1 Outputs delay at power-on (compressor, fans, defrosting)
0 … 60
This is used to delay the enabling of adjustments after the instrument
has been switched on for a set amount of time.
The transition from stand-by to machine activated (ON command
from the keyboard) bypasses this delay
List of -dEF defrosting parameters
1 Defrosting type
0,1
0 = heating element: ends at temperature or after maximum safe time
(timeout)
1 = hot gas: ends at temperature or after maximum safe time
(timeout)
For defrosting using a heating element, there is a 1 second delay
between the compressor switching off and the defrosting relay being
triggered
1 Defrosting interval
0 … 250
The maximum time (from start to start) between two consecutive
defrosting cycles. When this time expires, a defrosting cycle is enabled
(cyclical defrosting). The timer is reset at each defrosting request (even
if not cyclical).
0 = cyclical defrosting disabled
Unit
°C [°F] °C [°F] °C [°F] min min sec min min min
h
MBP LBP HBP (non
per SV)
–
–
–
2 -18
5
2
2
2
0
0
0
0
0
0
0
0
0
15 15
15
15 15
15
0
0
0
3
3
3
0
0
0
3
3
3
1
1
0
6
6
6
P-SF-SV Pag. 50 Rev 01 07/14
UK
Code Level Descr.
Range
dct dOH dEt dSt
dS2
dPO FSt Fot FAd Fdt dt dFd FCO Fon FoF AFd HAL LAL
PAO
1 Defrosting interval count mode
0,1
0 = counts if the compressor is operating
1 = counts all the time
1 Defrosting start delay at power-on
0 … 250
The time, as from when the instrument is switched on, for which any
defrosting requests are frozen (manual defrosting excluded)
1 Defrosting timeout
1 … 250
When the set time expires, defrosting is in any case ended, even if the
defrost end temperature has not been reached, passing on to the drip
phase
1 Defrost end temperature
-50.0 …
The probe 2 temperature above which defrosting is ended. If, at the
199.0
start of a defrosting cycle, the temperature is greater than that set, no
defrosting will be carried out. In the event of a probe 2 malfunction,
the defrosting cycle will in any case terminate after reaching a time
limit
1 Defrost end temperature for the second evaporator
-50.0 …
The probe 3 temperature above which defrosting for the second
199.0
evaporator is ended. If, at the start of a defrosting cycle, the
temperature is greater than that set, no defrosting will be carried out.
In the event of a probe 3 malfunction, the defrosting cycle will in any
case terminate after reaching a time limit.
This function is only enabled if P01=3o4, Co4=3 and CP0=2 (alarm
relay used for second evaporator defrosting and probe 3 used to
detect the temperature of the second evaporator). In this case, the
dripping phase will begin after the defrosting cycles of both
evaporators have ended.
1 Defrosting at power-on
0,1
0 = disabled
1 = defrosting when the instrument is switched on
List of -FAn fan parameters
1 Fans switch on temperature
probe2 FSt: fans off Fot probe2 < (FSt
-50.0 … 199.0
1 Fans switch off temperature
FAd): fans on probe2 < (Fot FAd): fans
-50.0 … 199.0
1 Fans switch on and off differential
off
1.0 …
90.0
1 Post-dripping time
0 … 60
The time after the dripping phase, during which the fans remain
switched off
1 Dripping time
0 … 60
The time after a defrosting cycle during which the compressor and the
evaporator are stopped in order to favour evaporator dripping
1 Fans deactivated during defrosting
0,1
0 = fans activated (operation set from FPt)
1 = fans deactivated
1 Fans activated with compressor off
0 … 2
0 = fans deactivated
1 = fans activated (operation set from FPt)
2 = fans in duty cycle operation
1 Fans ON time during duty cycle operation (FCO=2)
1 … 60
1 Fans OFF time during duty cycle operation (FCO=2)
1 … 60
List of -ALr alarm parameters
1 Temperature alarm threshold differential
1.0 …
This sets the re-entry temperature threshold after a high- or low-
90.0
temperature alarm condition
1 Maximum alarm threshold
-50.0 …
Above this value (absolute or referred to the setpoint) an alarm is
199.0
triggered
If the reference is relative, the unmarked value is added to the setpoint
1 Minimum alarm threshold
-50.0 …
Below this value (absolute or referred to the setpoint) an alarm is
199.0
triggered
If the reference is relative, the unmarked value is subtracted from the
setpoint
1 Temperature alarm delay at power-on
0 … 10
Unit MBP LBP HBP
(non
per SV)
1
1
1
min
0
0
0
min
15 15
15
°C [°F]
10 15
10
°C [°F]
10 10
10
flag
0
0
0
°C [°F]
8
-5
50
°C [°F]
-50 -50
-50
°C [°F]
2
2
2
min
1
2
0
min
2
2
0
flag
1
1
0
0
0
0
min
15 15
15
min
15 15
15
°C [°F]
2
2
2
°C [°F]
10 10
10
°C [°F]
-10 -10
-10
h
4
4
4
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Code Level Descr.
Range
dAO OAO dAt
ndt ddL
Ldd dro
LOC (**) rEL dEA
1 Temperature alarm delay after defrost
0 … 999
The time, starting from the end of the dripping phase, during which no
alarm is signalled.
In the event of contemporaneous network defrosting, the time refers to
the defrosting end command
1 Temperature alarm delay after door closure
0 … 10
The time, after the door is closed again and during which no alarm is
signalled
1 Defrosting alarm timeout enabling
0,1
This enables the signalling of any defrosting end due to the maximum
time limit being reached (timeout).
0 = signal disabled
1 = signal enabled
List of -diS display parameters
1 Decimal point display
0,1
0 = display without decimal point
1 = display with decimal point.
1 Display during the defrosting phase
0,1,2
0 = normal display (as set from the ddd par.)
1 = freezes the temperature value displayed at the start of defrosting
until the end of defrosting and the reaching of the setpoint
2 = “dF” until the end of defrosting and the reaching of the setpoint
The ddL parameter can be controlled only if the standard display (ddd
par.) includes the adjustment probe (probe 1 or network probe)
1 Defrosting display block timeout
0 … 255
The time, starting from the end of defrosting (end of dripping
phase),after which the normal display is in any case restored
1 °C or °F selection
0,1
0 = °C
1 = °F
This selection only affects temperature measurements. The values of
the parameters concerning temperature maintain their current values
and therefore, they must be varied manually to adapt them to the
Fahrenheit scale.
List of -CnF configuration parameters
1 Keyboard lock
0 … 3
0 = keyboards disabled
1 = main terminal keyboard enabled
2 = secondary terminal keyboard enabled
3 = keyboards enabled (the first to request a service has precedence
until completion)
1 Software release
0.0 … 99.9
A read-only value that identifies the software version
List of -Lan(***) network parameters
1 Supervision network address (for Master only)
1 … 199
The address to be set on each master must take into account the
number of slaves present in the LAN network preceding it:
“dEA”=”dEA[previous master]”+”L01[previous master]”+1
The Supervision network address for a Slave is “dEA[master]”+”L00”)
Unit
min h
flag flag
min flag
MBP LBP HBP
(non
per SV)
60 60
60
0
0
0
0
0
0
1
1
1
0
0
0
6
6
6
0
0
0
1
1
1
–
–
–
1
1
1
For models PTM068Z012, PTM080Z012, PTL060Z012, PTL080Z012, PTM110Z012,
PTM140Z012, PTM200Z012, PTL130Z012, PTL180Z012, PTL200Z012, PTL260Z012,
PTM300Z012, PTM370Z012, PTL350Z012 and PTL450Z012 the parameters dtY, dEt and
dSt have the values (tolerance defrosting) reported in Table 7.
table 7
Livello
Descrizione
Range
Unità
MBP
LBP
HBP
dtY
1
Defrosting type
0 = heating element: ends at temperature or
after maximum safe time (timeout)
1 = hot gas: ends at temperature or after
maximum safe time (timeout)
0,1
For defrosting using a heating element, there is
a 1 second delay between the compressor
switching off and the defrosting relay being
triggered
0
0
0
P-SF-SV Pag. 52 Rev 01 07/14
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Livello
Descrizione
Range
Unità
MBP
LBP
HBP
dEt
1
Defrosting timeout (Defrosting by heater)
When the set time expires, defrosting is in any case ended, even if the defrost end temperature has not been reached, passing on to the drip
1 … 250
min
30
30
30
phase
dSt
1
Defrost end temperature (Defrosting by heater)
The probe 2 temperature above which
defrosting is ended. If, at the start of a defrosting cycle, the temperature is greater than that set, no defrosting will be carried out. In the event of a probe 2 malfunction, the defrosting
-50.0 …
199.0
°C [°F]
15
15
10
cycle will in any case terminate after reaching a
time limit
*ATTENTION:
To unlock the keyboard, simultaneously press “SET” and “ON/OFF” for at least 5 seconds.
**ATTENTION:
the “LAN” network parameter is only used in case of MASTER/SLAVE and TELEMANAGEMENT functioning.
5.2. Alarm signals
In case of alarms, the board normally activates the following actions: the
relative alarm code is signalled on the display. In particular, the display
control alternates the alarm code and the temperature normally displayed; the
alarm led switches on; the relay alarm is activated.
For certain alarms and signals, the led and/or the relay is not activated. By
pressing any key, the relay deactivates (if active) and the led flashes, while
the display alarm code continues to be displayed. The led switches on and the
alarm code disappears only when the cause that generated it is found. Table 8
reports in detail the descriptions of each alarm and the actions undertaken in
this respect.
Code displayed
E1
E2 E3
E4 E5 E6 LO
Table 8 Alarms description.
Description/Control
cold room probe temperature error if a probe is used for adjustment, the
compressor will be activated cyclically and defrosting cycles will be
disabled; if a balanced network probe is enabled, adjustment will continue,
bypassing the malfunctioning probe End defrostin probe g error defrosting will
end due to timeout 3rd probe error (condenser temperature) the associated
controls are disabled 3rd probe error (2nd evaporator temperature) defrosting
will end due to timeout heat alarm () adjustment is disabled HP pressure
switch alarm() adjustment is disabled LP pressure switch alarm(*) adjustment
is disabled repeated heat alarm adjustment is disabled permanently repeated HP
pressure switch alarm adjustment is disabled permanently repeated LP pressure
switch alarm adjustment is disabled permanently low temperature alarm
LED enable
yes
yes blink.
yes yes yes yes yes yes yes yes
HI
high temperature alarm
yes
EE
data saving alarm
yes
default parameters are loaded
Ec
condenser cleaning alarm
blink.
Relay enable
yes
Reset Mode
automatic when the condition ceases
yes
automatic when the condition
ceases
no
automatic when the condition
ceases
yes
no
automatic when the condition
ceases
no
automatic when the condition
ceases
no
automatic when the condition
ceases
yes
at switch on
yes
at switch on
yes
at switch on
yes
automatic when the condition
ceases
yes
automatic when the condition
ceases
yes
at power-on or after the
parameter has been stored to
memory
no
automatic when the condition
ceases
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Code Description/Control
LED
Relay Reset Mode
displayed
enable enable
Er
network alarm (**)
yes
yes
automatic when the condition
ceases
Ed
defrosting timeout alarm
blink.
no
automatic at the start of the
next defrost
Od
door open timeout alarm
blink.
no
automatic when the condition
normal operation is enabled again
ceases
nx
slave x alarm (on master only)
yes
progr. automatic when the condition
ceases
Ux
slave x not connected (on master only)
blink.
no
automatic when the condition
the slave is not controlled
ceases
u0
master not connected (on slave only)
blink.
no
automatic when the condition
the slave is released from the network and operates autonomously
ceases
dx
slave x download failed(on master only)
blink.
no
manual or automatic when
the condition ceases
(*) No writing appears on the display.
(**) For network alarms, we intend the alarm control propagated by the master to all network devices, on planning, in case of
activation of the alarm relay on the master.
During functioning, in particular conditions, the signals reported in Table 9 are displayed.
Table 9 Particular functioning conditions.
Code Description
Notes
displayed
OFF
unit in stand-by (operation disabled)
remains until the next ON command
dF
defrosting in progress
see par. “ddL”
dFu
defrosting not performed
displayed for 2 seconds when the defrosting command is not
performed because the evaporator temperature is already above
the defrosting end temperature (parameter dst)
uM
master unit
at switch on, the network configuration of the unit is displayed
uSx
slave x unit
Cn
terminal/control connection interrupted
the terminal is not receiving data from the control
ATTENTION:
if on start-up, the terminal connection/control is not working correctly, the terminal displays “88.8” and the leds are all off.
6. Maintenance and Demolition
6.1. General Maintenance Information
To guarantee maximum reliability to the machine and avoid dangerous
conditions, scrupulously comply with the instructions and warnings reported in
the following pages.
DANGER:
for safety reasons, all the maintenance operations reported in this chapter
must only be conducted by qualified technicians that are specifically trained.
The responsible technicians must also have all the tools and IDP necessary to
operate safely.
WARNING:
to always guarantee operators full efficiency and safety of the machine and prevent problems linked to deterioration of the safety measures or machine stoppages which can be taxing, it is necessary to implement efficient preventive maintenance, by planning interventions with planned intervals, with the purpose of renewing or replacing the normal wear parts and audit the general status of the mechanical and electrical components composing the machine (and its auxiliary equipment), thereby providing the instructions on possible extraordinary operations which may become necessary.
Before conducting any type of maintenance or cleaning intervention reported in this paragraph, it is necessary to section the machine from the electrical power supply; do so by removing the plug from the power socket.
DANGER:
the manufacturer declines all responsibility for any damage to property and/or persons deriving from improper interventions conducted by unqualified, untrained, inadequately equipped or unauthorised staff.
6.1.1. Safety Signs
To conduct correct maintenance and cleaning operations, it is indispensible to
take into consideration the indications reported below.
During interventions, it is necessary to signal machine intervention using
specific signs (these signs are positioned in such a manner to prevent any
undesired intervention on the machine). During the interventions only
authorised staff can access the work area.
ATTENTION:
the maintenance and cleaning operations must only be conducted by expert and specialist staff that have read and understood all the indications reported in this Use and Maintenance Handbook.
P-SF-SV Pag. 54 Rev 01 07/14
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DANGER:
only dismantle the parts of the machine actually necessary to conduct the specific maintenance operation. Furthermore, before re-delivering the machine to operators, it is necessary to verify its integrity and functionality.
All the materials with environmental impact which must be eliminated after maintenance interventions must be disposed of according to norms in force.
ATTENTION::
to dispose of materials with high environmental impact, if necessary, appoint specialist structures.
In any case, to conduct all the maintenance and cleaning operations reported below on the machine, the following Individual Protection Devices are necessary:
6.1.2. Verification of Material Availability
With an advance of at least 60 days from the fixed date for maintenance interventions, conduct a detailed examination of the
necessary material:
check the material is in the warehouse,
if necessary, ask the manufacturer’s Technical Office for the missing pieces, at least 30 days in advance.
6.2. Emergency system
DANGER::
for the machine, only operators correctly trained and informed on the risks present can intervene on the machine and only having fully read this use and maintenance handbook. The manufacturer declines all responsibility for any damage to property and/or persons deriving from improper interventions conducted by unqualified, untrained or unauthorised staff.
DANGER: .
before conducting any planned cleaning interventions, ensure the machine is sectioned from the power supply, and any hot surfaces have cooled.
If a functioning fault or anomaly occurs on the electronic central unit and
immediate replacement is not possible, the EMERGENCY SYSTEM can be used to
maintain the unit operational until the central unit is replaced. To use this
system, having sectioned the machine, proceed as follows: 1. Remove all
bridges on the L terminals and the common ones on the board relays (terminals
25-28- 33-36-38); 2. As reported in the diagram in Figure 7, connect a
thermostat between terminal L, the NO terminals (terminals 32,37) and
the NC terminal (terminal 34) of the relays on the compressor, defrosting and
fans (COMP, DEF and FAN). 3. Then make a bridge between the L terminals and
the NO terminal of the ON/OFF relay (terminal 26 for power supply of the
tolerance on the carter, door and drainage where present). 4. Connect the
Blocksystem SF or P or SV again to the power line and set the thermostat to
the desired temperature.
DANGER:
what we’ve described is a temporary connection! As soon as possible contact the vendor or directly contact the manufacturer to replace the non-operating board.
ATTENTION: .
during the entire emergency phase, defrosting is excluded, therefore we recommend you reduce opening the coldroom to a minimum.
When installing the new central unit, restore all the connections described in points 2, 3, 4 and 5.
Figure 7 Emergency system.
Legend: T = Thermostat
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6.3. Cleaning and maintenance
DANGER:
the manufacturer declines all responsibility for any damage to property and/or persons deriving from incorrect or incomplete maintenance.
DANGER:
before conducting any planned ordinary maintenance interventions, ensure the machine is sectioned from the power supply; also wait for any hot surfaces to cool.
ATTENTION:
in case of replacement of machine components, they must be replaced with identical and original components.
ATTENTION:
Any measures taken to braze on a product category risk PED 1, must be conducted by qualified professionals.
6.3.1. Interventions and relevant frequency
The most significant and important operations are related to ordinary
maintenance and can be summarised as follows: On a weekly basis check the
evaporator is clean, in particular that there is no ice accumulation. When the
evaporator is obstructed by ice, conduct manual defrosting and keep the “UP”
key pressed for more than 5 seconds. Repeat the procedure until the evaporator
is completely clean. Check after 12 hours. Periodically clean (at least each
month) the condenser by removing dust and grease. If the room where the unit
is installed is very dusty, you can clean it more frequently. Every four
months clean the fastened and mobile contacts, for all the counters and
replace them if they show signs of deterioration. Check (every four months)
the tightening of all the electrical terminals both inside the panels and on
the terminal blocks of each electrical utility; carefully also check
tightening of the fuse elements. Visually check the entire refrigerator
circuit, also inside the machines, to search for refrigerant leaks, which can
also be found looking for traces of lubricating oil. If in doubt, prompt, in-
depth intervention is required. Check for refrigerating gas leaks: for systems
with 3 kg refrigerant load < 30 kg the control must be annual; for systems
with 30 kg = refrigerant load < 300 kg the control must be six-monthly; for
systems with a refrigerant load 300 kg the control must be quarterly. If a
leak is detected, immediate intervention is required and an audit must be
conducted within 30 days to ensure the repair was efficient. Every four months
check the regular flow of the refrigerant in the light on the liquid line.
Every four months check the level of oil using the specific light (where
present) on the compressor carter. Every four months use the passage light
glass on the liquid line to examine the colour of the element sensitive to
humidity. Green indicates dry, yellow indicates humidity. If humidity is
indicated, stop the machine immediately and replace the filter on the liquid,
replace the refrigerant and oil load. Repeat the control after 3 days of
functioning. Every four months check the noise of the compressor. This
operation should be conducted with care because it requires the system to be
functioning; check the presence of ticking or vibrations which are synonymous
with breakages or excessive mechanical ranges between the moving parts.
Regularly check the drainage of condensate water is not clogged. For the MBP
and LBP models, check the water drainage tolerance is efficient.
ATTENTION:
on completion of each maintenance and cleaning operation, reset all the fastened protections.
6.3.2. Interventions on safety valve (where planned)
We recommend you replace the safety valve in case it needed to intervene;
during drainage, in fact, the accumulation on the seal of the valve of
processing residue from components and tubing can cause the seal to become
faulty.
DANGER:
before replacing the valve, check the system, in the zone in which it is operating, is not under pressure or at a high temperature.
DANGER:
do not dismantle the safety valve without recovering the gas in advance that is present in the liquid receiver.
ATTENTION:
maintenance is not planned for safety valves. Removal of the cap and tampering with the seal are considered unauthorised modifications to calibration; this means the manufacturer’s warranty is not valid. The inspection of safety valves is reserved for the proposed authorities and is governed by specific legal norms, in force in the country of installation.
P-SF-SV Pag. 56 Rev 01 07/14
We recommend you check the safety valve every three years.
6.4.Out of service, dismantling and demolition
To perform these dismantling and demolition operations, the following
Individual Protection Devices are necessary:
UK
6.4.1. Machine placed out of service
To place a machine out of service for a long period, follow the operations below:
Remove machine voltage.
Clean the machine.
Also conduct the maintenance operations and then cover the machine with a sheet.
6.4.2. Dismantling
If it is necessary to dismantle the machine, follow the procedures indicated below. 1. Isolate the machine from electrical power. 2. Refer to the Paragraph 4.4.1 De-installation in Chapter 4 Transport and Installation, proceed to de-install the machine;
also contact the manufacturer’s Technical Office to obtain the necessary support during this intervention.
3. To proceed to moving the machine components, work according to the
instructions reported in Paragraph 4.2 Transport and Movement in Chapter 4
Transport and Installation.
4. Organise the components adequately based on the fact they have to be
transported to another location (refer to Paragraph
4.2 Transport and Movement in Chapter 4 Transport and Installation), which must be stored (refer to Paragraph 4.4 –
Storage in Chapter 4 Transport and Installation) or demolished (refer to Paragraph 6.2.3 – Demolition).
DANGER:
the manufacturer declines all responsibility for any damage to property and/or persons deriving from improper interventions conducted by unqualified, untrained, inadequately equipped or unauthorised staff.
6.4.3. Demolition and disposal
When the machine has reached the end of its lifecycle, before proceeding to final disposal, it is necessary to perform a series of
operations to minimise environmental impact linked to the disposal of the machine components, as requested by the norms in force on waste disposal. These operations are:
Separate and store the parts with environmental impact, or rather:
a. separate the various parts that could cause pollution;
b. select the materials to encourage their recycling, dividing them for differentiated disposal (in particular select the plastic
or rubber elements).
2. The gas contained in this system must not be dispersed in the environment. Thermal insulation of the buffer and oil in the
compressor must undergo differentiated collection; for this reason, we recommend you dispose of the generator only in
specialist collection centres and not as normal iron scrap, following the norm directives in force.
Dispose of the casing, or rather:
a. having removed and stored the polluting elements, entrust disposal of the casing to specialist structures.
ATTENTION:
on demolishing the machine, ensure the identification plate of the machine and the relevant technical documentation can no longer be used. It is the faculty of the client to return these elements to the manufacturer’s Technical Office for their destruction. Simple conservation in an inaccessible location of the aforementioned elements is not permitted. On completion of the interventions, communicate to the manufacturer’s Technical Office that the machine has been disposed of.
7. Optional
On the machine, on request of the client, it is possible to have the following optionals. R134A GAS An alternative to the standard R404A, the machine can be designed to use different refrigerating gases, recognised by the machine code (on the CE identification plate on the machine). Y=R134a. WATER CONDENSATE This is obtained by replacing the air condenser with a water condenser. To connect the water condensers, you must use tubes with a diameter of no less than those present on the Blocksystem SF – P – SV, in compliance with the input and output instructions. If the unit is dimensioned for water condensate with tower water, the input tube is the tube composed of a joint that connects the two minor section tubes of the condenser. Instead, when condensation is planned with well water, the input tube is distinguished because a static pressure regulator valve is installed on it that is used to regulate the water flow. Install the shut-off tap of the water supply line within the operator’s reach.
P-SF-SV Pag. 57 REV 01 07/14
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ATTENTION:
never close the water shut-off tap with the device functioning.
To improve the yield and duration of the machine, check that: the temperature of the water is between 20 and 30°C for the units with tower water condensate and between 5 and 20°C for units with well water condensate; water pressure is between 1 and 5 bar.
ATTENTION:
the water tubes must be protected from low external temperatures.
CONDENSER FAN VELOCITY CONTROL CONDENSER FANS PRESSURE SWITCH (optional where not standard) Stops the condenser fan when condensation pressure goes under the calibration value less the differential. CONDENSER FAN VELOCITY TRANSFORMER Regulates the fan velocity of the condenser based on the condensation pressure, to maintain it within the limits established. It is connected to the high pressure circuit. The instructions for use are attached to the machine documentation. MINIMUM PRESSURE SWITCH (optional where not standard) Stopping the machine, it intervenes when pressure in the suction circuit goes under the calibrated value less the differential. This occurs as the result of a fault. THERMOSTAT VALVE EXPANSION (where not an optional) If the lamination unit is the thermostat valve, the refrigeration system comes with a liquid receiver and a thermostat valve after the condenser. CARTER TOLERANCE Used to heat the compressor carter before start-up and keeping it warm during stoppage. The heat produced by the tolerance causes the evaporation of any refrigerant in liquid state which is found inside the compressor. REMOTE PANEL (where not standard) Allows positioning of the control panel at a certain distance from the machine, for example beside the door of the coldroom (maximum distance 100 m). VOLTAGE MONITOR Device that enables machine protection from low and excess voltage. DIFFERENTIAL THERMO- MAGNETIC SWITCH Device that protects the machine from surges, short circuits and indirect contacts. ADDITIONAL MODULE FOR MASTER/SLAVE FUNCTIONING Enables connection together of 2 Blocksystems SF or P or SV in a coldroom with the possibility of synchronised functions (defrosting, alarm-temperature displays and Blocksystem SF or P or SV running). ADDITIONAL MODULE FOR MONITORING, REGISTRATION AND TELEMANAGEMENT Allows connection of the Blocksystem SF P SV to a telemanagement system. DIFFERENT VOLTAGE The last digit on the abbreviation of the machine model identifies the voltage according to the following diagram:
1
230/1/50 Hz
2
400/3/50 Hz
3
110/1/60 Hz
4
220/3/60 Hz
5
220/1/60 Hz
6
460/3/60 Hz
7
380/3/60 Hz
8
230/3/50 Hz
TELEMANAGEMENT SYSTEM
Enables monitoring and programming of the Blocksystem P-SF-SV via a PC or data recorder. It gives the possibility of advanced
management (communication via modem or GSM) of all the Blocksystem SF or P or SV alarms.
8. Faults search
POSSIBLE CAUSES
SOLUTIONS
A
The compressor does not start up and does not release a humming sound
1 Check the supply line or substitute the relay.
1 Lack of voltage. Start-up relay with open contacts.
2 Check the electrical connections.
2 Thermal protector is intervening.
3 Tighten the connections or carry them out again in
3 Loose electrical connections or wrong electrical connections.
compliance to the electrical wiring diagram.
B
The compressor does not start up (but releases a humming sound) and the thermal protector intervenes
1 Wrong electrical connections.
1 Re-do the connections.
2 Low voltage supply to the compressor.
2 Identify the cause and eliminate it.
3 Faulty start-up of the condenser.
3 Identify the cause and replace the condenser.
4 The relay doesn’t close.
4 Identify the cause and substitute the relay if necessary.
5 The winding on the electrical motor is interrupted or in short circuit. 5 Substitute the compressor.
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POSSIBLE CAUSES
SOLUTIONS
C
The compressor starts up, but the relay doesn’t open 1 Wrong electrical connections.
1 Check the electrical circuit.
2 Low voltage supply to the compressor.
2 Identify the cause and eliminate it.
3 Relay blocked in closure.
3 Identify the cause and eliminate it.
4 Excessive discharge pressure.
4 Identify the cause and substitute the relay if necessary.
5 The winding on the electrical motor is interrupted or in short circuit. 5 Replace the compressor.
D
Intervention of the thermal protector 1 Low voltage supply to the compressor (unbalanced phases on the
1 Identify the cause and eliminate it.
tri-phase motors).
2 Defective thermal protector.
2 Check its characteristics and replace it if necessary.
3 Defective electric-run condenser.
3 Identify the cause and eliminate it.
4 Excessive discharge pressure.
4 Check the ventilation and any potential restrictions or
obstructions in the system circuit.
5 High suction pressure.
5 Check the sizing of the system. Replace the condensing
unit with a more powerful one, if necessary.
6 Overheated compressor, hot return gas.
6 Check the refrigerant load; if need be, repair the loss
and add gas if necessary till the charge stated in the
label.
7 Winding of the compressor motor in short circuit.
7 Replace the compressor.
E
The compressor starts up and circulates, the functioning cycles are of brief duration
1 Thermal protector.
1 See previous point (thermal protector intervention).
2 Thermostat.
2 Small differential; correct the regulation.
3 Intervention of the high pressure switch, due to the insufficient
3 Check the correct functioning of the motor fan or clean
cooling of the condenser.
the condenser.
4 Intervention of the high pressure switch, due to the excessive load 4 Reduce the load of refrigerant gas.
of refrigerant gas.
5 Intervention of the low pressure switch, due to the scarce load of
5 Repair the loss and add refrigerant gas.
refrigerant gas.
6 Intervention of the low pressure switch, due to the restriction or
6 Replace the expansion valve.
clogging of the expansion valve.
F
The compressor operates uninterruptedly or for long periods 1 Scarce load of refrigerant gas.
1 Repair the loss and add refrigerant gas till the charge
stated in the label.
2 Thermostat with contacts locked in closure.
2 Replace the thermostat.
3 System not sufficiently sized in function of the load.
3 Replace the system with a more powerful one.
4 Excessive load to cool or insufficient insulation.
4 Reduce the load and improve insulation, if possible.
5 Evaporator covered with ice.
5 Perform defrosting till the charge stated in the label .
6 Restriction in the system circuit.
6 Identify the resistance and eliminate it.
7 Clogged condenser.
7 Clean the condenser.
G
Electric-run condenser damaged, interrupted, or in short circuit 1 Wrong electric-run condenser.
1 Replace the condenser with the correct type.
H
Start-up relay defective or burnt out 1 Wrong relay.
1 Replace the relay with the correct one.
2 Relay mounted in the incorrect position.
2 Re-assemble the relay in the correct position.
3 Wrong lectric-run condenser.
3 Replace the condenser with the correct type.
I
Cold-room temperature too high 1 Thermostat regulated too high.
1 Regulate it correctly.
2 Undersized expansion valve.
2 Replace the expansion valve with a suitable one.
3 Undersized evaporator.
3 Replace it, increasing the surface of the evaporator.
4 Insufficient air circulation.
4 Improve air circulation,
L
Frosted suction piping 1 Expansion valve with excessive passage of gas or oversized.
1 Adjust the valve or substitute it with a correctly sized
one.
2 Expansion valve locked in open position.
2 Clean the valve of foreign substances and replace it, if
necessary.
3 Evaporator fan does not work.
3 Identify the cause and eliminate it.
4 Gas load too high.
4 Reduce the load.
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