Ferroli RVW 282 ÷ 1167 kW Water-cooled water chiller Installation manual

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INSTALLATION MANUAL
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282 ÷ 1167 kW
-FRIEND
Y
WATER-COOLED WATER CHILLERS
O
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RVW
C
Dear Customer,
Thank you for having purchased a FERROLI Idustrial coolers. It is the result of many years experience, particular research and has
been made with top quality materials and higlly advanced technologies.The CE mark guaranteed thats the appliances meets European Machine Directive requirements regarding safety.
The qualitative level is kept under constant surveillance. FERROLI products therefore offer SAFETY, QUALITY and RELIABILITY.
Due to the continuous improvements in technologies and materials, the product specification as well as performances are subject to
variations without prior notice.
Thank you once again for your preference.
FERROLI S.p.A
2
TABLE OF CONTENTS
THIS MANUAL IS DIVIDED INTO SECTIONS. THEIR NAMES APPEAR IN THE HEADING OF EACH PAGE.
GENERAL SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Presentation of the unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
General specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
European Directives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Identification plate of the Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Identification code of the unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Acustic Versions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Description of the components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
ACCESSORIES AND OPTIONAL EQUIPMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Mechanical accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Mechanical options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Electrical accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Electrical options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
TECHNICAL SPECIFICATIONS - STANDARD UNIT (IR-IW) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
General technical specifications Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Correction factor for the use of glycol CONDENSER side. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Correction factor for the use of glycol EVAPORATOR side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Correction factor for the use city water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Fouling factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Performances. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
GENERAL SPECIFICATIONS - BRINE UNIT (BR - BW) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Brine Unit (BR - BW) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
TECHNICAL SPECIFICATIONS FOR DESUPERHEATER VERSION (VD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Version with Desuperheater VD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Recovery heat exchanger specifications Version with Desuperheater VD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
TECHNICAL SPECIFICATIONS FOR TOTAL RECOVERY VERSION (VR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Version with total recovery on all circuits VR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
NOISE LEVELS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Standard Unit AB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Low noise Unit AS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
OPERATING RANGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Operating range Basic Version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
WATER PRESSURE DROP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Water pressure drop Evaporator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Water pressure drop Desuperheater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Water pressure drop Condenser Cooling tower (4T5) / Total recovery version VR . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Water pressure drop Condenser City water (4P5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
RECEPTION AND POSITIONING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Inspections on arrival . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Safety regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Storage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Vibration-damper installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
DIMENSIONAL AND PHYSICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Mod. 280.1 - 320.1 - 360.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Mod. 420.1 - 480.1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Mod. 540.1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Mod. 600.1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Mod. 710.2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Mod. 820.2 - 950.2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Mod. 1100.2 - 1200.2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
HYDRAULIC CONNECTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
General rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
General suggestions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Precautions for the Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Cooling tower condenser (4T5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
City water condenser (4P5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Valve regulating diagram Three-way driven valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Basic diagram Basic Version VB [SOURCE SIDE] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Basic diagram Basic Version VB [USER SYSTEM SIDE] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Basic diagram for units with Heat Recovery [USER SYSTEM SIDE]. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Hydraulic circuit for heat pump reversible water side IW-BW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Hydraulic circuit for heat recovery version VR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Victaulic connections and water flow switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
ELECTRICAL CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
General rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Structure of the electric panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Composition of the system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
R134A PROTECTION DEVICES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
REFRIGERANT FLOW DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Refrigerant flow diagram basic version VB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Refrigerant flow diagram Desuperheaters Version VD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Refrigerant flow diagram Total heat recovery VR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
General Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
General Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Routine maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
General considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
SAFETY AND POLLUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
General recommendations about the R134a refrigerant used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
First aid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
3
GENERAL SPECIFICATIONS
Presentation of the unit
This new series of water-cooled water chillers is based on 12 models with cooling capacity from 282 to 1167 kW and has been
designed to meet
the demands of global markets in the medium-big power industrial and commercial plants.,
Units are compact and highly configurable built to fit different types of plants so to meet the needs of highly qualified engineers.
The units are suitable for indoor installation and, as standard, are equipped with bearing structure made of adequately thick
coated and galvanized sheet metal where are fastened the condensers, to these the evaporator, the electrical panel and
the compressors. This layout allows an uniform weight distribution and an easy maintenance. The basement of the unit is
designed and made to allow an easy and quick handling of the unit in order to minimise the cost for installation.
All fastening components are made of stainless and/or galvanized steel. When the units were designed, particular attention was also
paid to sound emission in our endeavour to comply with the increasingly more restrictive laws governing acoustic pollution.
To further reduce the noise emission the units can be supplied in Low Noise Version, that is equipped with an acoustic box for the
compressors: this device allows a noise reduction of 4-5 dB.
The units produce cold water from 5 to 15°C and only for heat pump units hot water from 30 to 55°C. They can be equipped with 1
or 2 independent refrigerant circuits, each of which has a semi-hermetic TWINSCREW compressor featuring a 25 to 100% control
capacity device. They are equipped with an asynchronous threephase motor (400V-3-50Hz) with aluminium squirrel-cage rotor, preengineered for part-winding or star-delta starting (so as to reduce the current input during the starting phase to the minimum) and
are protected by a chain of thermistors buried in the stator windings (controlled by an electronic module with the function to prevent
the reverse rotation of the single compressors) and fuses housed in the electric panel. The standard outfit includes an efficient oil
separator complete with electric heater (activated when the compressor stops).
To widen the field of application to an even greater extent, some models are equipped with a liquid injection system controlled by the
electronic controller so that use only occurs when effectively necessary. As part of the standard supply, they are positioned on rubber
vibration dampers to reduce the vibrations transmitted to the base of the unit.
As standard, the unit is equipped with a shell and tube evaporator optimized fof R134a with high efficiency grooved pipes;
it is insulated with 10mm flexible closed-cell foam that forms barrier to prevent the formation of condensation and heat exchanges
towards the outside. Standard supply also includes a differential water pressure switch built into the water supply circuit to avoid
the risk of freezing if the water flow is shut off for some reason and as standard is equipped with VICTAULIC water connections.
The evaporator is feeded by an electronic expansion valve that allows the exploitation of the evaporator surface thus increasing the
efficiency of the system in all working conditions so achieving the optimal seasonal energy efficiency. The equipment is completed
with 1 or 2 shell and tube condensers (one per each refrigerant circuit) optimized for use with R134a, featuring high-efficiency grooved
pipes (thermally insulated only for heat pump units); as standard is equipped with VICTAULIC water connections.
As standard, the units are equipped with electric panel for setting and controls with a door-locking main circuit-breaker, controller
with microprocessor and display with 4 lines of 20 characters, refrigerant circuit made with copper pipes, complete with low and high
pressure switch (automatic and manual reset), safety valves (according to PED), Dehydrator filter with replaceble core, discharge
and liquid shutoff valves, low and high pressure transducers, compressor oil, charge of R134a environment-friendly refrigerant g gas.
All the units are accurately built and tested individually, thus only the electrical and wet connections need be made for installation.
The series is completed by a large and flexible of options and accessories.
General specifications
•
This manual and the wiring diagram supplied with the unit must be kept in a dry place and ready to hand for future consultation
when required.
• This manual has been compiled to ensure that the unit is installed in the correct way and to supply comprehensive information
about how to correctly use and service the appliance. Before proceeding with the installation phase, please carefully read
all the information in this manual, which describes the procedures required to correctly install and use the unit.
• Strictly comply with the instructions in this manual and conform to the current safety standards.
• The appliance must be installed in accordance with the laws in force in the country in which the unit is installed.
• Unauthorized tampering with the electrical and mechanical equipment will VOID THE WARRANTY.
• Check the electrical specifications on the identification plate before making the electrical connections. Read the instructions in
the specific section where the electrical connections are described.
• If the unit must be repaired for any reason, this must only be done by a specialized assistance center recognized by the
manufacturer and using geuine spare parts.
• The manufacturer also declines all liability for any damage to persons or property deriving from failure of the information in this
manual to correspond to the actual machine in your possession.
• Proper uses: this series of chillers is designed to produce cold or hot water for use in hydronic systems for
conditioning/heating purposes. The units are not suitable for the production of domestic hot water.
Any use differing from this proper use or beyond the operating limits indicated in this manual is forbidden unless
previously agreed with the manufacturer.
• The prevention of the risk of fire at the installation site is the responsiblity of the end user.
European Directives
The company hereby declares that the machine in question complies with the matters prescribed by the following Directives:
•
•
•
•
4
Machinery directive
2006/42/EC
Pressurised equipment directive (PED)
97/23/EC
Electromagnetic compatibility directive (EMC) 2004/108/EC
Low voltage directive (LVD)
2006/95/EC
GENERAL SPECIFICATIONS
Identification plate of the Unit
The figure on the left depicts the identification plate of the unit, affixed to the outer left-hand side of
the Electric Panel.
A description of the data is given below:
Codice
Code
B1
Rev
Standard versions
A - Trademark
B - Model
B1- Code
C - Serial number
D - Cooling Capacity
E - Heating Capacity
F GHI L MNOPQRS-
Ferroli Spa
Via Ritonda 78/A
Power input in COOLING mode
Power input in HEATING mode
Reference standard
Electric power supply
Maximum load current
Type of refrigerant and charge
Shipping weight of the unit
Sound pressure level at 1m
IP Level Protection
Maximum pressure - High Side
Maximum pressure - Low Side
PED certification authority
Special versions
A - Trademark
B - Model
B1- Code
C - Serial number
D - Cooling Capacity (same as Standard Version of the unit)
E - Heating Capacity
for IR unit, VD version, Recovered Heating Capacity
for IP/IW unit, VD version, Heating Capacity / Recovered Heating Capacity
F - Power input in COOLING mode (same as Standard version of the unit)
G - Power input in HEATING mode
H - Reference standard
I - Electric power supply
L - Maximum load current
M - Type of refrigerant and charge
N - Shipping weight of the unit
O - Sound pressure level at 1m
P - IP Level Protection
Q - Maximum pressure - High Side
R - Maximum pressure - Low Side
S - PED certification authority
(VR) Italy
NOTE: The identification plate of the Brine Unit (BR - BW) is filled out as
shown in the diagram for the Basic Version of the unit (VB).
Identification code of the unit
The codes that identify the units are listed below and include the sequences of letters that determine the meanings for the various
versions and set-ups.
Unit type
RVW - IR - 710.2 - VB - AB - 4 - T - 5
IR- Unit for installation in an Hydronic
system with operation as a Chiller.
IW- Unit for installation in an Hydronic
system with operation as a Chiller and
Heat Pump with the commutation
between "COOL- HEAT" obtained by
managing the hydraulic circuit.
BR - Water Chiller suitable for BRINE
production from -8 to 5°C.
BW - Heat Pump with the commutation between "COOL- HEAT" obtained
by managing the hydraulic
circuit.Water Chiller suitable for BRINE
production from -8 to 5°C (only in
cooling mode).
Type of Power supply
5 - 400V-3ph~50Hz
Condenser Options
Refrigerant type
4 - R134a
Model of unit
Version
N° compressors = 1/2
VB - Basic Version
VD - Version with Desuperheater
VR - Version with Total heat recovery
Acoustic Version
AB - Basic Version
T- Cooling Tower
Units equpped with condensers with
connections and water circuit suitable
to wotk with cooling tower or dry
cooler (DT=5K).
P- City Water
Units equpped with condensers with
connections and water circuit suitable
to wotk with city water (DT 15-20K).
S- For Sea water
Units equpped with condensers
equipped with special pipes suitable
to work with sea water.
Versions
The available unit versions are described below:
VD: Version with Desuperheater. Produces cold water as in the standard version plus hot water at a temperature from 40 to 50°C
at the same time. This is achieved thanks to a water-refrigerant gas heat exchanger between the compressors and condenser that
recovers part of the thermal power that would otherwise be dispersed in the ccoling water and increases the unit cooling capacity
from 3 to 5%.
VR:Version with Total heat Recovery. Produces cold water as in the standard version plus hot water at a temperature from 35 to 55°C
at the same time. This is achieved using a suitable heat exchanger that has a double water circuit: one for condensation and a second
for heat recovery. In this way it is possible to recover the total thermal power that would otherwise be dispersed in the cooling water.
Acustic Versions
AB Basic Version. The compressors are installed on rubber vibration dampers
AS Low Noise Version. The compressors are installed on rubber vibration dampers and are enclosed in a Soundproofing Box made
of hot galvanised steel sheet of adequate thickness, with internal acoustic insulation, and externally painted with polyester powders
able to resist the atmospheric agents over time that allows a reduction of noise emission around 4/5 dB(A).
5
GENERAL SPECIFICATIONS
Description of the components
1. Electric control and monitoring panel.
It is housed in a cabinet made of adequately thick painted sheet metal suitable for outdoor installation (protection degree IP 54). The
panel comprises the following main components:
- Main door-locking circuit-breaker.
- Contactors to control and manage the part-winding or star-delta starting mechanism of each compressor.
- Fuse holders with protection fuses for each compressor.
- Fuse holders with protection fuses for the oil heaters of the compressors.
- Insulating and safety transformer to power the auxiliaries, protected with fuses.
- Basic monitoring board with microprocessor:
- Electronic expansion valve controller
The main functions of the monitoring system are:
Temperature regulation of the water produced by the unit, operating hour counting for compressors and pump/s, operating hour, balancing for compressors and pumps, start-up timing, parameter entry digitized via the keyboard, alarm diagnosis.
Functions associated with the digital inputs: low and high pressure, high discharge temperature, correct electric power phase presence-sequence, thermal protection for compressors, evaporator and Condenser WATER differential pressure / paddle flow switch,
thermal protection for evaporator and condenser, remote controlled ON/OFF commands, switching mode (summer-winter) (only for
IW) Heat recovery mode enabling via digital input (only for VR), Heat Recovery WATER differential pressure / paddle flow switch (only
for VR), heat recovery pump thermal protection (only for VR).
Functions associated with the digital outputs: compressor control, solenoid valves for compressor control capacity, liquid injection
solenoid valve control, water pump/s control, general alarm (can be remote controlled), heat recovery water pumps management
(only for VR).
Functions associated with the analog inputs: evaporator water inlet and outlet temperatures, condenser water outlet temperature
(only for IW units) discharge temperature. Suction and discharge pressure, discharge temperature probe, heat recovery water probe
(only for VR).
Functions associated with the analog outputs: 4-20 mA to manage 3 way valves for condesing pressure control.
Moreover the controller allows
- Alarm history (max 50m alarms managed with FIFO logic)
- Time scheduling (daily and weekly)
- Precise control of the water leaving temperature
- Prevention of the block of the unit: In case of critical conditions the machine does not stop but is able to regulate itself and provide
the maximum power that can be generated in those conditions with the compressors working inside the admissible limits.
-Demand Limit by Digital Input and/or by Analog Input (4-20mA)
-Dinamic Setpoint by Analog Input (4-20mA): for instance by an outdoor temperature probe for the climate control
-Second Set Point by Digital Input
-Connection to BMS (supervision systems) through serial port RS 485 and MODBUS protocol
2. User interfacing terminal with display.
Control panel: composed of the instrument’s front panel, equipped with an LCD display, three indicator LEDs, and one joystick buttons
and three function button, it enables viewing and/or checking the operating mode and parameters, resources and complete alarm
diagnostics.
In particular, it enables:
· Managing alarm situations
· Checking the status of resources.
1
2
3
4
KEY
1.Display
2. Alarms LED
3. LED for communication between the motherboard governing the unit and6
the keypad
4. Power supply LED
5. Joystick Menu Button
6. Function Button
6
5
GENERAL SPECIFICATIONS
3. Bearing structure made of galvanized sheet metal coated to ensure good protection against adverse weather conditions.
4. Compressors. Suitable for outdoor installation. They are the TWIN-SCREW type with 25 to 100% control capacity: in conjunction
with accurate assembly, this technical solution allows the refrigerant to compress and the axial thrusts on the bearings (amongst the
most critical components of the compressor) to be perfectly balanced, thus guaranteeing long life.
They are equipped with an asynchronous threephase motor (400V-3-50Hz) with aluminium squirrel-cage rotor, pre-engineered for
part-winding or star-delta starting (so as to reduce the current input during the starting phase to the minimum) and are protected by
a chain of thermostors buried in the stator windings (controlled by an electronic module) and fuses housed in the electric panel. The
standard outfit includes an efficient oil separator complete with electric heater (activated when the compressor stops). To widen the
field of application to an even greater extent, some models are equipped with a liquid injection system controlled by the electronic
controller so that use only occurs when effectively necessary.
As part of the standard supply, they are positioned on rubber vibration dampers to reduce the vibrations transmitted to the base of
the unit.
5. Evaporator of the shell and tube heat exchanger type, made of carbon steel and optimized for operation with R134a. Features
high-efficiency grooved pipes and also achieves low losses on the wet side.
As standard, the evaporator is insulated with 10mm flexible closed-cell foam that forms barrier to prevent the formation of condensation and heat exchanges towards the outside. Standard supply also includes a differential water pressure switch built into the water
supply circuit to avoid the risk of freezing if the water flow is shut off for some reason. Also ensures that mechanical stress is absorbed
to a good degree. As accessory it can be supplied with Water flow switch FA.
6. Condenser/Heat Recovery shell and tube type; the shell is made by carbon steel and is optimized to work with R134a. It is
equipped with grooved pipes and allows very low water pressure drop.
4
4
5
2
1
6
3
7
GENERAL SPECIFICATIONS
Hydraulic and refrigerant circuit components
1. Refrigerant safety valve. (Conforms to the Directive governing pressurized equipments - PED). Installed on the delivery pipe of
the compressors. It acts if critical service faults should occur.
2. Liquid cock - Gas cock. Allow all the refrigerant in the coils to be pumped and then stored so as to carry out servicing work or to
replace all the components of the chilling circuit without having to drain it.
3. Dehydrator filter. Of the removable cartridge type. Retains impurities and traces of moisture in the circuit.
4. Electronic expansion valve. It has the task of correctly feeding the evaporator insuring a steady superheat. The valve is managed by a dedicated electronic board. It has also the function to stop the liquid when the compressor is off, so avoiding the refrigerant
migration from the coils to the evaporator and to the compressor.
5. Liquid and moisture sight glass. Signals when liquid passes through the circuit, indicating that the refrigerant charge is correct.
The liquid indicator also changes colour to show the amount of moisture in the refrigerant.
- Compressor delivery probe. One per compressor, installed on the delivery pipe to protect the compressor if the end of compression temperature exceeds the established limits.
- Pressure taps: 1/4 “ SAE (7/16” UNF) (schraeder). Allow the operating pressure of both the circuits to be measured in 3 main points
of each refrigerant circuit: compressor discharge, thermostatic valve inlet, compressor suction.
- High pressure switch. With fixed setting. It is installed on the delivery pipe and blocks the compressor of the circuit if the operating
pressures exceed the tolerated values. If it activates, the circuit will block and can only be restarted by resetting via the user interface
terminal.
- Oil crankcase heater to heat the compressor oil. One per compressor. Activated when the compressor switches off. Their task
is to keep the temperature of the oil sufficiently high so as to prevent refrigerant from migrating during these pauses.
- Low pressure switch. With fixed setting. It is installed on the suction pipe and blocks the compressors if the operating pressures
drop below the tolerated values. Automatically resets as the pressure increases. If it activates frequently, the unit will block and can
only be restarted by resetting via the user interface terminal.
1
3
5
4
8
2
3
ACCESSORIES AND OPTIONAL EQUIPMENT
Mechanical accessories
AVG (F) - Rubber vibration dampers. Consisting of 4 rubber vibration dampers, they reduce the mechanical vibrations generated by
the compressor during their normal operation, that are then transmitted to the bearing surface of the machine. The insulation degree
provided by the vibration dampers is about 90%.
MAP (F) - Storage and Pumping Module (Storage on the Delivery or Storage on Return). The purpose of the storage and pumping
module is to lower the number of compressor surges, increasing the amount of water in the system and, thus, its thermal inertia. It
consists of a base made of galvanized and painted sheet metal and aluminium sheet panelling suitable for outdoor installation.
Designed for connection alongside the chiller, the accessory comprises an insulated carbon steel tank, a single or double centrifugal pump with on-off valves, an electric power panel, expansion tank, safety valve, air vent, pressure gauge and filling and draining
valves.
Mechanical options
GM (M) - Pressure gauge unit. This consists of low pressure gauges and high pressure gauges (one low and one high pressure
gauge for each circuit).
RA (M) - Compressor suction shut-off valve. Allows a quick replacement of the compressor.
IEM (M) - High thickness evaporator insulation with 19mm flexible closed ceel foam.
Electrical accessories
CSF (M / F) - Voltage monitor and sequence meter. The device enables control of the correct sequence of power phases and the
lack of any phases. It also ensures that the unit works within ± 10% the rated voltage (MIN=360 V - RATED=400V - MAX=440V).
It blocks the unit if the voltage is outside the limits provided for the condensation pressure inside the correct operating limits.
INT (M) - RS485 Serial interface, for communication with the MODBUS protocol To connect to BMS (Building Management System).
Via serial port it is possible to manage the ON/OFF of the unit, to modify the set point, to read and store the main parameters of the
refrigerant and water circuits (analogue input) and to acquire the main alarms (digit<l input).
OP (F) - Programmer Clock, applied to the remote ON/OFF function.
FLS (F) - Flow switch. Paddle flow switch that can be installed on evaporator water circuit to avoid the risk of freezing if the water
flow is shut off for some reason., and/or on condenser water circuit to avoid high pressure alarms caused by an insufficient water
flow rate.
CR (F) - Remote Control. Repeats the functions of the control system installed in the unit, thus allowing this latter to be controlled at
a distance (up to 100 m) from the unit.
RAG-MAP (F*) - Antifreeze heating element for Pumping Module Water tank. keeps the water at a temperature able to prevent
ice from forming when the tank remains idle during the winter
Electrical options
FLE (M) - Flow switch. Paddle flow switch installed on the evaporator water circuit to avoid the risk of freezing if the water flow is
shut off for some reason.
RAG (M) - Antifreeze heating element for the evaporator, keeps the water at a temperature able to prevent ice from forming when
the unit remains idle during the winter
MTC (M) - Magnetothermic switch. Magnetothermic switch on all loads in place of fuses.
SS (M) - Soft Starter. Soft starter on compressors riduce the inrush current and reduce the vibrations transmitted to the pipes and
basic frame during the start-up phase.
On request unit can be supplied:
•
suitable for outdoor installation with components and electrical panel with minimum degree of protection IP54.
•
Other voltage power supply
NOTE: The accessories can be of the following type:
(M): only installed in the factory.
(F): supplied for installation by the customer.
9
TECHNICAL SPECIFICATIONS - STANDARD UNIT (IR-IW)
General technical specifications Unit
Model
280.1
320.1
360.1
420.1
480.1
540.1
600.1
710.2
820.2
Cooling capacity (1)(E)
282
317
356
412
478
536
592
704
818
950.2 1100.2 1200.2
935
1066
1167
UM
Total power input (1)(E)
59
67
75
86
100
114
125
150
172
200
228
249
kW
EER(1)(E)
4.78
4.73
4.75
4.79
4.78
4.7
4.74
4.69
4.75
4.68
4.67
4.69
W/W
ESEER (1)(E)
5.55
5.49
5.50
5.56
5.56
5.50
5.56
5.54
5.63
5.55
5.58
5.60
W/W
Heat capacity (2)(E)
299
338
381
435
512
569
634
754
870
1010
1133
1253
kW
Total power input (2)(E)
69
79
90
101
121
133
149
179
204
243
265
298
kW
COP (2)(E)
4.3
4.25
4.23
4.33
4.25
4.29
4.24
4.2
4.26
4.16
4.27
4.21
W/W
kW
Compressor specifications
Type
TWIN-SCREW
Quantity
1
2
Capacity control
Starting type
N°
25-100 %
PART WINDING
%
STAR-DELTA
PW
STAR-DELTA
-
Evaporator data
Type
SHELLAND TUBE HEAT EXCHANGER
-
1
N°
Quantity
Maximum pressure on wet side
1000
kPa
Total water capacity
109
106
103
159
153
148
261
194
342
334
314
306
I
Water flow rate (1)
13.5
15.1
17
19.7
22.8
25.6
28.3
33.6
39.1
44.7
50.9
55.8
l/s
Water pressure drop (1)(E)
46
37
46
44
55
43
54
52
45
57
59
45
kPa
Water flow rate (2)
11
12.3
13.9
16
18.7
20.9
23.1
27.5
31.8
36.7
41.5
45.6
l/s
Water pressure drop (2)(E)
30
25
31
29
37
29
36
35
30
38
39
30
kPa
280.1
320.1
360.1
420.1
480.1
540.1
600.1
710.2
820.2
Condenser data
Model
Type
950.2 1100.2 1200.2
SHELLAND TUBE HEAT EXCHANGER
Quantity
1
2
Maximum pressure on wet side
UM
N°
1600
kPa
Total water capacity
32
32
34
37
37
53
59
68
74
74
106
118
I
Water flow rate (1)
16.3
18.3
20.6
23.8
27.6
31.1
34.3
40.8
47.3
54.2
61.8
67.7
l/s
kPa
Water pressure drop (1)(E)
Water flow rate (2)
Water pressure drop (2)(E)
29
25
26
28
38
27
25
26
28
38
27
25
14.3
16.1
18.2
20.8
24.5
27.2
30.3
36
41.6
48.3
54.1
59.8
l/s
22
19
20
21
30
21
20
20
22
30
21
20
kPa
Electrical specifications
Electric power supply
Note:
(1): Cooling Mode The data refer to:
(2): (only for IW unit)
Heating Mode The data refer to:
400 (±10%) / 3 / 50
Evaporator Water temperature: inlet: 12°C - outlet: 7°C,
Condenser Water temperature: inlet: 30°C - outlet: 35°C,
Evaporator Water temperature: inlet: 10°C - outlet: 5°C,
Condenser Water temperature: inlet: 40°C - outlet: 45°C,
(E): Data declared according to EUROVENT LCP certification programme. The values are for units without options and accessories.
10
V/ph/Hz
TECHNICAL SPECIFICATIONS - STANDARD UNIT (IR-IW)
Correction factor for the use of glycol CONDENSER side
ETHYLENE GLYCOL with water produced between 30 ÷ 55 º C.
percentage Of glycol in mass / volume
freezing point [°C]
Cooling capacity CCPF
Power input CCPA
Water flow rate CCQA
Water pressure drop CCDP
0/0
0
1.000
1.000
1.000
1.000
10 / 8.9
-3.2
0.995
1.010
1.038
1.026
20 / 18.1
-8
0.985
1.015
1.062
1.051
30 / 27.7
-14
0.975
1.020
1.091
1.077
40 / 37.5
-22
0.970
1.030
1.127
1.103
10 / 9.6
-3.3
0.99
1.01
1.018
1.026
20 / 19.4
-7
0.975
1.02
1.032
1.051
30 / 29.4
-13
0.965
1.03
1.053
1.077
40 / 39.6
-21
0.955
1.04
1.082
1.103
PROPYLENE GLYCOL with water produced between 30 ÷ 55 º C.
percentage Of glycol in mass / volume
freezing point [°C]
Cooling capacity CCPF
Power input CCPA
Water flow rate CCQA
Water pressure drop CCDP
0/0
0
1
1
1
1
Based on leaving water temperatures of the condenser and evaporators (DESIGN CONDITIONS) from the table “performances”
extract Cooling Capacity (kWf) and Compressors Power Input (kWa).
Based on type and percentage of glycol extract CCPF, CCPA, CCQA, CCDP.
Then calculate.
Pf_brine = kWf x CCPF
Pass_CP_brine = kWa x CCPA
Then calculate Thermal Power of the condenser:
Pt_brine = Pf_brine+Pass_CP_brine
Then calculate brine flow rate:
Q_brine_cond [l/s]=CCQA x (Pt_brine [kW]*0.86/ΔT_brine)/3.6
where ΔT_brine is the difference outlet-intlet condenser water temperature:
ΔT_brine=Twoutcond_brine-Twin_cond_brine .
With this brine flow rate enter in abscissa on the water pressure drop of the condenser then you have Dp_app.
Finally you can calculate the actual pressure drop of the brine on condenser side:
Dp_cond_brine =CCDP x Dp_app
Correction factor for the use of glycol EVAPORATOR side
ETHYLENE GLYCOL with water produced between 5÷20ºC.
percentage Of glycol in mass / volume
freezing point [°C]
Cooling capacity CCPF
Power input CCPA
Water flow rate CCQA
Water pressure drop CCDP
0/0
0
1
1
1
1
10 / 8.9
-3.2
0.99
1
1.04
1.08
20 / 18.1
-8
0.98
0.99
1.08
1.16
30 / 27.7
-14
0.97
0.99
1.12
1.25
40 / 37.5
-22
0.95
0.98
1.16
1.35
10 / 9.6
-3.3
0.98
0.99
1.01
1.05
20 / 19.4
-7
0.96
0.98
1.03
1.11
30 / 29.4
-13
0.94
0.95
1.06
1.22
40 / 39.6
-21
0.92
0.93
1.09
1.38
PROPYLENE GLYCOL with water produced between 5÷20ºC.
percentage Of glycol in mass / volume
freezing point [°C]
Cooling capacity CCPF
Power input CCPA
Water flow rate CCQA
Water pressure drop CCDP
0/0
0
1
1
1
1
Based on leaving water temperatures of the condenser and evaporators (DESIGN CONDITIONS) from the table “performances”
extract Cooling Capacity (kWf) and Compressors Power Input (kWa).
Based on type and percentage of glycol extract CCPF, CCPA, CCQA, CCDP.
Then calculate.
Pf_brine = kWf x CCPF
Pass_CP_brine = kWa x CCPA
Then calculate brine flow rate:
Q_brine_evap [l/s]=CCQA x (Pf_brine [kW]*0.86/ΔT_brine)/3.6
where ΔT_brine is the difference inlet-outlet evaporator water temperature:
ΔT_brine=Twin_evap_brine-Twout_evap_brine
With this brine flow rate enter in abscissa on the water pressure drop of the evaporator then you have Dp_app.
Finally you can calculate the actual pressure drop of the brine on evaporator side:
Dp_evap_brine =CCDP x Dp_app
11
TECHNICAL SPECIFICATIONS - STANDARD UNIT (IR-IW)
Correction factor for the use city water
For use of city water for condenser apply the correction factors reported on the following table.
∆t condenser water [°C]
Cooling capacity CCPF
Power input CCPA
5
1.000
1.000
10
1.025
0.960
15
1.030
0.955
20
1.035
0.950
Based on leaving water temperatures of the condenser and evaporators (DESIGN CONDITIONS) from the table “performances”
extract Cooling Capacity (kWf) and Compressors Power Input (kWa).
Based on ΔTcond equal to the difference outlet-inlet condenser water temperature you extract CCPF and CCPA so you can calculate
Pf = kWf x CCPF
Pass_CP = kWa x CCPA
Then you calculate the thermal power to be cooled by the condenser:
Pt = Pf+Pass_CP
Then you calculate the evaporator and condenser water flow rate :
Q_evap [l/s]=(Pf [kW]*0.86/ ΔTevap)/3.6:
Q_cond [l/s]=(Pt [kW]*0.86/ ΔTcondensatore)/3.6:
With Q_evap you can enter on abscissa on water pressure drop graph of the evaporator and extract the evaporator pressure drop.
With Q_cond you can enter on abscissa on water pressure drop graph of the condenser city water and extract the condenser pressure
drop.
Fouling factors
The performances supplied with the tables are referred to a fouling factory = 0.44x10-4 m² K/W . For different values of the fouling
factory, use the reduction coefficients reported in the following table.
Evaporator
Fouling factory
F.c. PA
F.c. PF
F.c. PA
(m² K / W)
0.44 x 10-4
1
1
1
1
(m² K / W)
0.86 x 10-4
0.98
0.99
0.98
1.025
(m² K / W)
1.72 x 10-4
0.93
0.98
0.95
1.06
F.c. PF: Correction Factor for Cooling capacity
F.c. PA: Correction Factor for Power Input
12
Condenser / Recuperator
F.c. PF
TECHNICAL SPECIFICATIONS - STANDARD UNIT (IR-IW)
Performances
Mod. 280.1÷420.1
MOD.
280.1
320.1
360.1
420.1
TWE
5
6
7
8
9
10
11
12
13
14
15
5
6
7
8
9
10
11
12
13
14
15
5
6
7
8
9
10
11
12
13
14
15
5
6
7
8
9
10
11
12
13
14
15
TWC / TWR - CONDENSER / RECOVERED WATER TEMPERATURE (°C)
35
40
45
50
30
55
kWf
kWa
kWt
kWf
kWa
kWt
kWf
kWa
kWt
kWf
kWa
kWt
kWf
kWa
kWt
kWf
kWa
kWt
275
285
296
306
317
327
338
348
358
369
380
310
321
333
344
356
368
380
391
402
414
426
349
361
374
386
400
413
427
439
451
464
477
402
417
432
447
463
478
495
509
524
539
555
53
54
54
55
55
56
56
57
58
58
59
60
61
61
62
62
63
64
65
65
66
67
67
68
69
70
70
71
72
72
73
74
74
78
78
78
79
80
81
82
83
84
85
86
326
336
347
358
369
380
392
402
413
424
436
367
379
391
403
415
428
441
453
465
477
489
412
425
439
453
467
480
495
508
521
534
548
476
491
507
522
539
555
573
588
604
620
637
262
272
282
292
303
313
323
332
342
351
361
295
306
317
328
340
351
363
373
384
394
405
331
343
356
369
382
394
407
418
430
441
453
383
397
412
427
442
457
472
486
500
514
529
58
58
59
59
60
60
61
62
62
63
64
65
66
67
67
68
69
69
70
71
72
72
73
74
75
76
76
77
78
79
79
80
81
84
85
86
86
87
88
89
90
91
92
93
317
327
338
348
359
370
381
391
401
411
422
357
369
381
392
404
416
429
440
451
462
474
400
414
427
441
454
468
481
493
505
517
530
463
478
494
508
525
540
557
571
586
602
617
249
258
267
277
287
297
307
315
324
334
343
279
290
300
311
322
334
345
355
365
375
386
314
326
337
350
362
375
387
399
410
422
434
363
376
390
404
419
433
448
461
474
487
501
63
64
64
65
66
66
66
67
68
69
69
72
72
73
74
74
75
76
77
77
78
79
80
81
82
83
83
84
85
86
87
88
89
92
93
94
95
96
96
97
98
99
100
101
308
318
328
339
349
359
370
379
389
399
409
347
358
370
382
393
405
417
427
438
450
461
390
403
415
429
441
455
468
481
493
506
519
450
464
479
494
510
524
540
553
567
582
597
233
242
251
260
270
280
289
298
307
316
326
262
272
283
293
304
315
325
335
345
355
365
295
307
319
330
342
354
366
376
387
398
409
340
353
366
380
395
408
423
436
449
463
477
69
70
70
71
72
73
73
74
74
75
76
79
80
80
81
82
83
83
84
85
86
86
90
90
90
91
92
93
94
95
95
96
97
101
101
102
103
104
105
106
107
108
109
110
299
308
318
328
339
349
359
368
378
388
398
338
348
359
370
382
393
405
415
425
436
447
381
393
404
417
430
443
455
466
477
489
501
435
449
464
478
494
508
524
537
552
566
581
216
225
234
243
252
261
270
279
287
295
304
244
254
264
274
284
295
305
313
322
332
341
277
287
298
310
321
332
343
353
362
372
382
314
327
341
355
367
381
395
407
419
432
445
77
77
78
78
79
79
80
81
81
82
83
87
88
89
89
90
91
91
92
93
94
95
98
99
100
101
102
102
103
104
105
106
108
111
112
113
113
114
115
116
117
118
119
120
289
298
308
318
327
337
346
355
364
373
383
327
337
348
359
370
381
391
401
411
421
431
370
382
393
406
418
430
441
452
462
473
485
420
434
448
462
476
490
505
518
531
545
559
199
207
216
225
233
242
251
259
268
276
285
225
235
244
254
264
273
283
292
301
311
321
256
267
277
288
299
310
321
330
340
350
360
289
301
314
326
339
352
365
378
390
403
417
84
85
86
86
87
87
88
89
90
90
91
96
97
98
99
100
100
101
102
103
103
104
109
110
111
113
114
114
115
116
117
118
119
122
123
124
125
126
127
128
129
130
130
131
279
288
297
307
316
325
335
344
353
362
372
317
327
337
348
358
368
379
389
399
409
420
360
371
383
395
407
418
429
440
451
462
473
405
418
431
445
458
472
487
500
513
527
542
TWE= Evaporator outlet water temperature (°C)
TWC / TWR= Condenser / recovered water temperature (°C)
TWD = Desuperheater water temperature outlet (°C)
kWf = Cooling capacity (kW).
kWa = Compressor power input (kW).
kWt = Heating capacity (kW).
The performances refer to a 5°C temperature difference between the water entering and leaving the heat exchangers. Has also been considered A
0.44 x 10-4 m2 K/W fouling factor.
13
TECHNICAL SPECIFICATIONS - STANDARD UNIT (IR-IW)
Mod. 480.1÷710.2
MOD.
480.1
540.1
600.1
710.2
TWE
5
6
7
8
9
10
11
12
13
14
15
5
6
7
8
9
10
11
12
13
14
15
5
6
7
8
9
10
11
12
13
14
15
5
6
7
8
9
10
11
12
13
14
15
TWC / TWR - CONDENSER / RECOVERED WATER TEMPERATURE (°C)
35
40
45
50
30
55
kWf
kWa
kWt
kWf
kWa
kWt
kWf
kWa
kWt
kWf
kWa
kWt
kWf
kWa
kWt
kWf
kWa
kWt
275
285
296
306
317
327
338
348
358
369
380
310
321
333
344
356
368
380
391
402
414
426
349
361
374
386
400
413
427
439
451
464
477
402
417
432
447
463
478
495
509
524
539
555
53
54
54
55
55
56
56
57
58
58
59
60
61
61
62
62
63
64
65
65
66
67
67
68
69
70
70
71
72
72
73
74
74
78
78
78
79
80
81
82
83
84
85
86
326
336
347
358
369
380
392
402
413
424
436
367
379
391
403
415
428
441
453
465
477
489
412
425
439
453
467
480
495
508
521
534
548
476
491
507
522
539
555
573
588
604
620
637
262
272
282
292
303
313
323
332
342
351
361
295
306
317
328
340
351
363
373
384
394
405
331
343
356
369
382
394
407
418
430
441
453
383
397
412
427
442
457
472
486
500
514
529
58
58
59
59
60
60
61
62
62
63
64
65
66
67
67
68
69
69
70
71
72
72
73
74
75
76
76
77
78
79
79
80
81
84
85
86
86
87
88
89
90
91
92
93
317
327
338
348
359
370
381
391
401
411
422
357
369
381
392
404
416
429
440
451
462
474
400
414
427
441
454
468
481
493
505
517
530
463
478
494
508
525
540
557
571
586
602
617
249
258
267
277
287
297
307
315
324
334
343
279
290
300
311
322
334
345
355
365
375
386
314
326
337
350
362
375
387
399
410
422
434
363
376
390
404
419
433
448
461
474
487
501
63
64
64
65
66
66
66
67
68
69
69
72
72
73
74
74
75
76
77
77
78
79
80
81
82
83
83
84
85
86
87
88
89
92
93
94
95
96
96
97
98
99
100
101
308
318
328
339
349
359
370
379
389
399
409
347
358
370
382
393
405
417
427
438
450
461
390
403
415
429
441
455
468
481
493
506
519
450
464
479
494
510
524
540
553
567
582
597
233
242
251
260
270
280
289
298
307
316
326
262
272
283
293
304
315
325
335
345
355
365
295
307
319
330
342
354
366
376
387
398
409
340
353
366
380
395
408
423
436
449
463
477
69
70
70
71
72
73
73
74
74
75
76
79
80
80
81
82
83
83
84
85
86
86
90
90
90
91
92
93
94
95
95
96
97
101
101
102
103
104
105
106
107
108
109
110
299
308
318
328
339
349
359
368
378
388
398
338
348
359
370
382
393
405
415
425
436
447
381
393
404
417
430
443
455
466
477
489
501
435
449
464
478
494
508
524
537
552
566
581
216
225
234
243
252
261
270
279
287
295
304
244
254
264
274
284
295
305
313
322
332
341
277
287
298
310
321
332
343
353
362
372
382
314
327
341
355
367
381
395
407
419
432
445
77
77
78
78
79
79
80
81
81
82
83
87
88
89
89
90
91
91
92
93
94
95
98
99
100
101
102
102
103
104
105
106
108
111
112
113
113
114
115
116
117
118
119
120
289
298
308
318
327
337
346
355
364
373
383
327
337
348
359
370
381
391
401
411
421
431
370
382
393
406
418
430
441
452
462
473
485
420
434
448
462
476
490
505
518
531
545
559
199
207
216
225
233
242
251
259
268
276
285
225
235
244
254
264
273
283
292
301
311
321
256
267
277
288
299
310
321
330
340
350
360
289
301
314
326
339
352
365
378
390
403
417
84
85
86
86
87
87
88
89
90
90
91
96
97
98
99
100
100
101
102
103
103
104
109
110
111
113
114
114
115
116
117
118
119
122
123
124
125
126
127
128
129
130
130
131
279
288
297
307
316
325
335
344
353
362
372
317
327
337
348
358
368
379
389
399
409
420
360
371
383
395
407
418
429
440
451
462
473
405
418
431
445
458
472
487
500
513
527
542
TWE= Evaporator outlet water temperature (°C)
TWC / TWR= Condenser / recovered water temperature (°C)
TWD = Desuperheater water temperature outlet (°C)
kWf = Cooling capacity (kW).
kWa = Compressor power input (kW).
kWt = Heating capacity (kW).
The performances refer to a 5°C temperature difference between the water entering and leaving the heat exchangers. Has also been considered A
0.44 x 10-4 m2 K/W fouling factor.
14
TECHNICAL SPECIFICATIONS - STANDARD UNIT (IR-IW)
Mod. 820.2÷1200.2
MOD.
820.2
950.2
1100.2
1200.2
TWE
5
6
7
8
9
10
11
12
13
14
15
5
6
7
8
9
10
11
12
13
14
15
5
6
7
8
9
10
11
12
13
14
15
5
6
7
8
9
10
11
12
13
14
15
TWC / TWR - CONDENSER / RECOVERED WATER TEMPERATURE (°C)
35
40
45
50
30
55
kWf
kWa
kWt
kWf
kWa
kWt
kWf
kWa
kWt
kWf
kWa
kWt
kWf
kWa
kWt
kWf
kWa
kWt
275
285
296
306
317
327
338
348
358
369
380
310
321
333
344
356
368
380
391
402
414
426
349
361
374
386
400
413
427
439
451
464
477
402
417
432
447
463
478
495
509
524
539
555
53
54
54
55
55
56
56
57
58
58
59
60
61
61
62
62
63
64
65
65
66
67
67
68
69
70
70
71
72
72
73
74
74
78
78
78
79
80
81
82
83
84
85
86
326
336
347
358
369
380
392
402
413
424
436
367
379
391
403
415
428
441
453
465
477
489
412
425
439
453
467
480
495
508
521
534
548
476
491
507
522
539
555
573
588
604
620
637
262
272
282
292
303
313
323
332
342
351
361
295
306
317
328
340
351
363
373
384
394
405
331
343
356
369
382
394
407
418
430
441
453
383
397
412
427
442
457
472
486
500
514
529
58
58
59
59
60
60
61
62
62
63
64
65
66
67
67
68
69
69
70
71
72
72
73
74
75
76
76
77
78
79
79
80
81
84
85
86
86
87
88
89
90
91
92
93
317
327
338
348
359
370
381
391
401
411
422
357
369
381
392
404
416
429
440
451
462
474
400
414
427
441
454
468
481
493
505
517
530
463
478
494
508
525
540
557
571
586
602
617
249
258
267
277
287
297
307
315
324
334
343
279
290
300
311
322
334
345
355
365
375
386
314
326
337
350
362
375
387
399
410
422
434
363
376
390
404
419
433
448
461
474
487
501
63
64
64
65
66
66
66
67
68
69
69
72
72
73
74
74
75
76
77
77
78
79
80
81
82
83
83
84
85
86
87
88
89
92
93
94
95
96
96
97
98
99
100
101
308
318
328
339
349
359
370
379
389
399
409
347
358
370
382
393
405
417
427
438
450
461
390
403
415
429
441
455
468
481
493
506
519
450
464
479
494
510
524
540
553
567
582
597
233
242
251
260
270
280
289
298
307
316
326
262
272
283
293
304
315
325
335
345
355
365
295
307
319
330
342
354
366
376
387
398
409
340
353
366
380
395
408
423
436
449
463
477
69
70
70
71
72
73
73
74
74
75
76
79
80
80
81
82
83
83
84
85
86
86
90
90
90
91
92
93
94
95
95
96
97
101
101
102
103
104
105
106
107
108
109
110
299
308
318
328
339
349
359
368
378
388
398
338
348
359
370
382
393
405
415
425
436
447
381
393
404
417
430
443
455
466
477
489
501
435
449
464
478
494
508
524
537
552
566
581
216
225
234
243
252
261
270
279
287
295
304
244
254
264
274
284
295
305
313
322
332
341
277
287
298
310
321
332
343
353
362
372
382
314
327
341
355
367
381
395
407
419
432
445
77
77
78
78
79
79
80
81
81
82
83
87
88
89
89
90
91
91
92
93
94
95
98
99
100
101
102
102
103
104
105
106
108
111
112
113
113
114
115
116
117
118
119
120
289
298
308
318
327
337
346
355
364
373
383
327
337
348
359
370
381
391
401
411
421
431
370
382
393
406
418
430
441
452
462
473
485
420
434
448
462
476
490
505
518
531
545
559
199
207
216
225
233
242
251
259
268
276
285
225
235
244
254
264
273
283
292
301
311
321
256
267
277
288
299
310
321
330
340
350
360
289
301
314
326
339
352
365
378
390
403
417
84
85
86
86
87
87
88
89
90
90
91
96
97
98
99
100
100
101
102
103
103
104
109
110
111
113
114
114
115
116
117
118
119
122
123
124
125
126
127
128
129
130
130
131
279
288
297
307
316
325
335
344
353
362
372
317
327
337
348
358
368
379
389
399
409
420
360
371
383
395
407
418
429
440
451
462
473
405
418
431
445
458
472
487
500
513
527
542
TWE= Evaporator outlet water temperature (°C)
TWC / TWR= Condenser / recovered water temperature (°C)
TWD = Desuperheater water temperature outlet (°C)
kWf = Cooling capacity (kW).
kWa = Compressor power input (kW).
kWt = Heating capacity (kW).
The performances refer to a 5°C temperature difference between the water entering and leaving the heat exchangers. Has also been considered A
0.44 x 10-4 m2 K/W fouling factor.
15
GENERAL SPECIFICATIONS - BRINE UNIT (BR - BW)
Brine Unit (BR - BW)
Correction factors to apply to the basic version data
ETHYLENE GLYCOL
percentage of glycol in mass / volume
freezing point [°C]
Produced water temperature
Cooling capacity CCPF
Power input CCPA
Water flow rate CCQA
Water pressure drop CCDP
percentage of glycol in mass / volume
freezing point [°C]
Produced water temperature
Cooling capacity CCPF
Power input CCPA
Water flow rate CCQA
Water pressure drop CCDP
percentage of glycol in mass / volume
freezing point [°C]
Produced water temperature
Cooling capacity CCPF
Power input CCPA
Water flow rate CCQA
Water pressure drop CCDP
4
0.912
0.967
1.071
1.090
4
0.899
0.960
1.106
1.140
4
0.884
0.880
1.150
1.190
2
0.855
0.957
1.072
1.095
2
0.842
0.950
1.107
1.145
2
0.827
0.870
1.151
1.195
0
0.798
0.947
1.073
1.100
20 / 18.1
-8
-2
0.738
0.927
1.075
1.110
-4
0.683
0.897
1.076
1.120
-6
-
-8
-
0
0.785
0.940
1.108
1.150
30 / 27.7
-14
-2
0.725
0.920
1.109
1.155
-4
0.670
0.890
1.110
1.160
-6
0.613
0.870
1.111
1.175
-8
0.562
0.840
1.112
1.190
0
0.770
0.860
1.153
1.200
40 / 37.5
-22
-2
0.710
0.840
1.154
1.210
-4
0.655
0.810
1.155
1.220
-6
0.598
0.790
1.157
1.235
-8
0.547
0.760
1.158
1.250
0
0.740
0.925
1.039
1.120
20 / 19.4
-8
-2
0.690
0.900
1.039
1.130
-4
0.641
0.875
1.040
1.140
-6
-
-8
-
0
0.729
0.910
1.070
1.190
30 / 29.4
-14
-2
0.680
0.888
1.069
1.200
-4
0.630
0.865
1.069
1.210
-6
0.583
0.838
1.068
1.255
-8
0.536
0.810
1.067
1.300
0
0.719
0.845
1.112
1.320
40 / 39.6
-22
-2
0.670
0.820
1.110
1.375
-4
0.620
0.795
1.108
1.430
-6
0.570
0.773
1.107
1.500
-8
0.520
0.750
1.105
1.570
PROPYLENE GLYCOL
percentage of glycol in mass / volume
freezing point [°C]
Produced water temperature
Cooling capacity CCPF
Power input CCPA
Water flow rate CCQA
Water pressure drop CCDP
percentage of glycol in mass / volume
freezing point [°C]
Produced water temperature
Cooling capacity CCPF
Power input CCPA
Water flow rate CCQA
Water pressure drop CCDP
percentage of glycol in mass / volume
freezing point [°C]
Produced water temperature
Cooling capacity CCPF
Power input CCPA
Water flow rate CCQA
Water pressure drop CCDP
4
0.874
0.945
1.037
1.110
4
0.869
0.935
1.072
1.160
4
0.848
0.865
1.116
1.230
2
0.807
0.935
1.038
1.115
2
0.799
0.923
1.071
1.175
2
0.784
0.855
1.114
1.275
Based on leaving water temperature of the condenser and evaporator water leaving temperature = 7°C from the table “performances”
extract Cooling Capacity (kWf) and Compressors Power Input (kWa).
Based on type and percentage of glycol extract CCPF, CCPA, CCQA, CCDP.
Then calculate.
Pf_brine = kWf x CCPF
Pass_CP_brine = kWa x CCPA
Then calculate brine flow rate:
Q_brine_evap [l/s]=CCQA x (Pf_brine [kW]*0.86/ΔT_brine)/3.6
where ΔT_brine is the difference between inlet-outlet evaporator water temperature:
ΔT_brine=Twin_evap_brine-Twout_evap_brine
With this brine flow rate enter in abscissa on the water pressure drop of the evaporator then you have Dp_app.
Finally you can calculate the actual pressure drop of the brine on evaporator side:
Dp_evap_brine =CCDP x Dp_app
16
TECHNICAL SPECIFICATIONS FOR DESUPERHEATER VERSION (VD)
Version with Desuperheater VD
280.1
320.1
360.1
420.1
480.1
540.1
600.1
710.2
820.2
Recovered heating capacity
Model
54
62
69
79
92
105
115
138
158
184
210
229
Recovered water flow rate
2,6
2,9
3,3
3,8
4,4
5,0
5,5
6,6
7,6
8,8
10,0
11,0
l/s
6
8
7
10
9
7
9
7
10
9
7
9
kPa
Recovered water pressure drop
Type of recovery exchanger
950.2 1100.2 1200.2
UM
kW
STAINLESS STEEL BRAZE PLATES
Quantity
-
1
2
Max. operating pressure on wet side
Total water content of recovery
exchangers
N°
1000
5
5
7
7
9
10
kPa
14
13
13
18
20
28
l
Notes:
The data refer to: Water temperature: evaporator inlet : 12°C - evaporator outlet: 7°C.
Water temperature: recovery inlet : 40°C - recovery outlet: 45°C.
Water temperature: condenser inlet : 30°C - condenser outlet: 35°C.
Recovery heat exchanger specifications Version with Desuperheater VD
MOD.
280.1
320.1
360.1
420.1
480.1
540.1
600.1
710.1
820.2
950.2
1100.2
1200.2
TWD
30
35
40
45
50
40
45
50
40
45
50
40
45
50
40
45
50
40
45
50
40
45
50
40
45
50
40
45
50
40
45
50
40
45
50
40
45
50
47
45
44
54
52
50
60
58
56
69
66
64
80
77
74
92
88
85
100
97
93
121
116
111
138
133
127
161
155
148
183
176
169
200
192
185
56
54
52
64
62
60
72
69
66
82
79
76
96
92
88
109
105
101
120
115
110
144
138
132
164
158
152
191
184
177
218
210
202
238
229
220
CONDENSER WATER TEMPERATURE (°C TWC)
40
45
kWtr = RECOVERED HEATING CAPACITY [Kw]
63
69
60
66
58
64
72
79
69
76
67
73
80
88
77
85
74
81
92
101
88
97
85
93
107
118
103
113
99
109
122
134
118
129
113
124
134
147
129
141
124
136
161
177
155
170
148
163
184
202
177
194
170
187
214
235
206
226
198
217
245
269
235
258
226
248
267
293
256
282
246
270
50
55
76
73
71
88
84
81
98
94
90
112
107
103
130
125
120
149
143
137
163
156
150
195
188
180
223
215
206
260
250
240
297
286
274
324
311
299
83
80
77
95
92
88
106
102
98
122
117
112
142
136
131
162
155
149
177
170
163
212
204
196
243
234
224
283
272
261
323
311
298
352
339
325
TWD = Desuperheater water temperature outlet (°C)
TWC = Condenser water temperature outlet (°C)
The performances refer to a 5°C temperature difference between the water entering and leaving the heat exchanger. Has also been
considered A 0.44 x 10-4 m2 K/W fouling factor.
17
TECHNICAL SPECIFICATIONS FOR TOTAL RECOVERY VERSION (VR)
Version with total recovery on all circuits VR
Model
280.1
320.1
360.1
420.1
480.1
540.1
600.1
710.2
820.2
950.2 1100.2 1200.2
UM
kW
Recovered heating capacity
318
359
404
464
546
607
674
801
925
1072
1208
1332
Recovered water flow rate
15,2
17,2
19,3
22,2
26,1
29,0
32,2
38,3
44,2
51,2
57,7
63,6
l/s
25
22
23
24
34
24
22
23
24
34
24
22
kPa
Recovered water pressure drop
Type of recovery exchanger
SHELLAND TUBE HEAT EXCHANGER
Quantity
1
Max. operating pressure on wet side
Total water content of recovery
exchangers
2
N°
1600
27
31
34
37
37
53
kPa
59
68
74
74
106
118
l
Notes:
The data refer to: Water temperature: evaporator inlet : 12°C - evaporator outlet: 7°C.
The data refer to: Water temperature: recovery inlet : 40°C - recovery outlet: 45°C.
FOR THE PERFORMANCES OF THE HEAT RECOVERY VERSION REFER TO THE VALUES REPORTED IN THE TABLES
“PERFORMANCES” FOR BASIC VERSION (kWt).
18
NOISE LEVELS
The noise levels refer to units operating in the nominal conditions (water temperature: inlet: 12°C - outlet: 7°C, Condenser water
temperature: inlet: 30°C - outlet: 8°C).
The acoustic pressure levels are measured 1/ 5 / 10 meters away from the outer surface of the unit operating in the free field and
resting on a reflecting surface (directional factor of 2).
SWL = Sound power levels, with reference to 1x10-12 W.
The Total sound power level in dB(A) measured in compliance with ISO 9614 standards, which is therefore the only binding acoustic
specification (the values of the Octave bands in the table are indicative).
SPL = Sound pressure levels, with reference to 2x10-5 Pa.
The sound pressure levels are values calculated by applying the ISO-3744 relation (Eurovent 8/1) and refer to a distance of 1 meter
away from the external surface of units operating in the open field with directivity factor 2 and the units operating in nominal conditions
in the cooling mode.
Standard Unit AB
250
91
91
91
94
94
94
94
95
97
97
97
97
SWL (dB)
Octave bands (Hz)
500
1000
2000
92
92
91
92
92
91
92
92
91
93
94
92
93
94
92
93
94
92
93
94
92
93
94
94
95
96
94
95
96
94
95
96
94
95
96
94
250
88
88
88
89
89
90
90
91
92
92
94
94
SWL (dB)
Octave bands (Hz)
500
1000
2000
87
86
88
87
86
88
87
86
88
87
86
89
87
86
89
89
87
90
89
87
90
89
89
88
89
88
91
89
88
91
90
89
92
90
89
92
MOD.
280.1
320.1
360.1
420.1
480.1
540.1
600.1
710.2
820.2
950.2
1100.2
1200.2
63
94
94
94
96
96
96
96
98
100
100
100
100
125
93
93
93
95
95
95
95
97
98
98
98
98
4000
86
86
86
88
88
88
88
88
90
90
90
90
8000
79
79
79
82
82
82
82
82
84
84
84
84
dB
100
100
100
102
102
102
102
103
105
105
105
105
Total
dB(A)
97
97
97
98
98
98
98
99
100
100
100
100
dB
97
97
97
98
98
99
99
100
101
101
102
102
Total
dB(A)
92
93
92
93
93
94
94
94
95
95
96
96
SPL [dB(A)
1
79
79
79
80
80
80
80
80
81
81
81
81
5
70
70
70
72
72
72
71
72
73
73
73
73
10
65
65
65
67
67
67
66
67
68
68
68
68
Low noise Unit AS
MOD.
280.1
320.1
360.1
420.1
480.1
540.1
600.1
710.2
820.2
950.2
1100.2
1200.2
63
93
93
93
94
94
95
95
96
97
97
97
97
125
90
90
90
91
91
92
92
94
93
93
95
95
4000
80
80
80
82
82
83
83
84
86
86
86
86
8000
76
76
76
78
78
80
80
80
80
80
80
80
SPL [dB(A)
1
74
75
74
75
75
76
76
75
76
76
77
77
5
65
66
65
66
66
67
67
67
68
68
69
69
10
60
61
60
61
61
62
62
62
63
63
64
64
19
OPERATING RANGE
Operating range Basic Version
The graph indicates the admissible working envelope of the unit.
The use of the unit in conditions outside the envelope will avoid the warranty.
Here under are reported the limits of water differential temperature for the heat exchangers of the unit.
Water thermal gradient*
CONDENSER / RECOVERED
EVAPORATOR
Cooling Tower
City Water
Minimum
°C
4
4
8
Maximum
°C
8
8
20
[°C]
EVAPORATOR WATER
LEAVING TEMPERATURE
ΔT Water= 5°C
15
WE RECOMMEND THE USE OF
ANTIFREEZE MIXTURES
(EG. ETHYLENE GLYCOL)
7
5
3
TOTAL RECOVERY EXCHANGE / CONDENSER WATER
LEAVING TEMPERATURE
BRINE VERSION
-8
[°C]
[°C]
25
35
* : Verify that water flow rate is inside the admissible limits.
20
50
55
Water pressure drop (kPa)
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
10
Upper limit value
Lower limit value
MOD.
Operating range
15
280.1
Q
Dp
Q
Dp
20
25
30
480.1
35
40
710.2
Water flow rate (l/s)
600.1
540.1
45
50
950.2
820.2
55
1100.2
60
65
1200.2
280.1 320.1 360.1 420.1 480.1 540.1 600.1 710.2 820.2 950.2 1100.2 1200.2 UM
NOTES
10
12.5 12.5
15
15
19.5 19.5 23.5
29
29
33
41.5
l/s
25
kPa Q=Water flow rate
Dp=Water pressure
20
25
25
29.5 30.5
39
38.5 40.5 50.5
51
57.5
67
l/s drop
101
101
99
99
98
100
100
75
75
74
75
65
kPa
320.1
360.1
420.1
70
The graph below illustrates for the evaporator the water pressure drop values in kPa depending on the flow rate in liters/second. The operating
range is delimited by the minimum and maximum values given in the next table.
Water pressure drop Evaporator
WATER PRESSURE DROP
21
22
0
Upper limit
value
MOD.
Q
Dp
Operating range
0
5
10
15
20
25
30
35
40
360.1
420.1
480.1
10
710.2
820.2
Water flow rate (l/s)
540.1
600.1
15
950.2
20
1100.2
1200.2
280.1 320.1 360.1 420.1 480.1 540.1 600.1 710.2 820.2 950.2 1100.2 1200.2 UM
NOTES
6.5
7.8
9.2
11
15.5
22.5
l/s Q=Water flow rate
40
35
40
36
kPa Dp=Water pressure drop
5
280.1
320.1
The graph below illustrates for the evaporator the water pressure drop values in kPa depending on the flow rate in liters/second. The operating range
is delimited by the minimum and maximum values given in the next table.
Water pressure drop Desuperheater
25
WATER PRESSURE DROP
Water pressure drop (kPa)
Water pressure drop (kPa)
10
15
Upper limit
value
Lower limit
value
MOD.
Q
Dp
Q
Dp
Operating range
15
20
25
30
35
40
45
50
25
30
35
540.1
40
600.1
50
55
Water flow rate (l/s)
45
710.2
60
820.2
65
70
1100.2
75
80
1200.2
280.1 320.1 360.1 420.1 480.1 540.1 600.1 710.2 820.2 950.2 1100.2 1200.2 UM
NOTES
14
15.5 17.5 17.5
23
26.5
31
35
35
46
53
l/s
15
kPa Q=Water flow rate
24.5
27
30
30
40
46
53.5
60
60
80
91
l/s Dp=Water pressure drop
45
45
45
45
45
45
45
45
46
45
45
kPa
20
280.1
320.1
360.1
420.1
480.1
950.2
85
90
95
The graph below illustrates for the evaporator the water pressure drop values in kPa depending on the flow rate in liters/second. The operating range is
delimited by the minimum and maximum values given in the next table.
Water pressure drop Condenser Cooling tower (4T5) / Total recovery version VR
100
WATER PRESSURE DROP
23
24
Water pressure drop (kPa)
0
Upper limit
value
Lower limit
value
MOD.
5
Q
Dp
Q
Dp
Operating range
20
30
40
50
60
70
80
15
540.1
25
Water flow rate (l/s)
20
820.2
950.2
710.2
600.1
30
1200.2
1100.2
35
40
280.1 320.1 360.1 420.1 480.1 540.1 600.1 710.2 820.2 950.2 1100.2 1200.2 UM
NOTES
5.5
6
7.5
10.5 11.5
13
15
23
23
l/s
20
19
24
24
24
23
24
20.5 22.5
kPa Q=Water flow rate
10
11
12
17
19.5
22
24
34
38.5
l/s Dp=Water pressure drop
68
65
61
64
68
65
61
64
66
kPa
10
420.1
480.1
360.1
280.1
320.1
45
The graph below illustrates for the evaporator the water pressure drop values in kPa depending on the flow rate in liters/second. The operating range is
delimited by the minimum and maximum values given in the next table
Water pressure drop Condenser City water (4P5)
WATER PRESSURE DROP
RECEPTION AND POSITIONING
Inspections on arrival
As soon as the appliance is consigned, it is essential to make sure that all the ordered items have been received and that the shipment is complete. Carefully check that the equipment has not been damaged. If visible damage is discovered, immediately inform the
haulage contractor and write “Collected with reserves owing to evident damage” on the consignment note.
Delivery ex works means that, as established by law, reimbursement of any damages is at the insurance company’s charge.
Safety regulations
Comply with the current safety regulations concerning the equipment to use when handling the unit or the required ways of operating.
Fig. 1
Handling
Check the weight of the appliance before proceeding
with the moving and handling operations. The weight
is indicated on the data plate of the appliance and in
the WEIGHTS AND CENTERS OF GRAVITY DURING
TRASPORT AND OPERATION section of this manual.
Make sure that the appliance is handled with care and
without jolting as rough treatment could damage the functional parts of the machine.
Comply with the following instructions when lifting and
positioning the appliance:
• Handling and lifting with a crane or similar
NOTE: To correctly lift the machine, the belts used must
be longer than 3 meters.
WARNING:
To safeguard persons and property, read the information
on the packing that covers the unit before handling. Also
make sure to:
• Handle the machine with care
• Do not stack other objects on top of the unit
Storage
The units must be stored in a dry place, sheltered from the sun, rain, sand and wind.
Comply with the storage conditions given below:
• Do not stack the units
• Maximum temperature = 60°C
• Minimum temperature = -10°C
• Humidity = 90%
155
4
Vibration-damper installation
49
M-16
218
CORTE A-A
14.5
To prevent the operating unit from transmitting vibrations to the bearing structure, vibration dampening materials should be inserted under the bearing points.
The unit can be supplied with the vibration dampening accessory.
176
188
25
DIMENSIONAL AND PHYSICAL DATA
Mod.
280.1 - 320.1 - 360.1
906
1043 (AS)
1625
1553
6
1773 (AB)
3
708
91
7
4
296
296
708
1221
1878 (AS)
1
400
400
1142
1142
88
725*
378
42
NOTES:
1 - Compressor 1
2 - Compressor 2
3 - Evaporator
4 - Condenser 1
2400
1600*
3884
88
1242
522
1001 (AB)
1242
4084
5 - Condenser 2
6 - Compressor Soundproofing Box
7 - Power supply
* - Center distance for vibration damper holes Ø=18mm
AB - Standard Unit
AS - Low noise Unit
NB: The measures are in mm.
The drawing is referred to unit
with cooling tower condensers.
Weights and position of the centre of gravity in transport and operation
Mod.
Version
VB
280.1
VD
VR
VB
320.1
VD
VR
VB
360.1
VD
VR
Acustic
version
A
B
AB
AS
AB
AS
AB
AS
AB
AS
AB
AS
AB
AS
AB
AS
AB
AS
AB
AS
799
807
795
803
797
801
799
807
795
803
797
801
799
807
795
803
797
801
409
417
411
419
415
421
410
418
412
420
416
422
412
420
414
422
418
424
W1
393
408
400
414
447
464
396
410
403
417
449
466
399
412
406
420
452
469
Operation
Antivibration dampers
W2
W3
509
508
553
562
524
517
568
572
599
594
644
645
516
514
559
569
530
524
575
579
606
600
651
652
525
523
569
579
541
535
586
590
617
612
662
663
Transport
W4
392
415
395
417
443
465
395
418
398
420
446
467
398
420
401
423
449
470
TOTAL
WEIGHT
1803
1938
1836
1971
2083
2218
1821
1956
1854
1989
2101
2236
1844
1979
1884
2019
2129
2264
A
B
799
807
795
803
797
801
799
807
795
803
797
801
799
807
795
803
797
801
409
417
411
419
415
421
410
418
412
420
416
422
412
420
414
422
418
424
TOTAL
WEIGHT
1662
1797
1690
1825
1910
2045
1683
1818
1711
1846
1931
2066
1707
1842
1740
1875
1958
2093
NB: The weight are in kg.
Minimum space required for operation
1500
A
W4
W1
B
1000
CP1
W2
W3
1000
26
1000
Refer to the figure alongside for the dimensions of the
unit.
To correctly install the unit, comply with the measurements for the free area that must be left around the
machine, as shown in the figure. The distances must
be doubled if the unit is to be installed in a pit.
NOTE: Allow for a clear area of not less than
1.5 meters above unit.
The areas installation must be doubled if multiple units
are installed.
W1÷ W4 - they indicate the position where the
spring antivibration dampers (accessory) are installed.
DIMENSIONAL AND PHYSICAL DATA
Mod.
420.1 - 480.1
1118 (AS)
777
1955
1352
1
735
13
3
296
7
296
735
1274
1837 (AB)
1904 (AS)
6
400
400
4
88
725*
378
82
1142
1142
88
522
2400
1600*
1242
NOTES:
1 - Compressor 1
2 - Compressor 2
3 - Evaporator
4 - Condenser 1
1242
3884
1036 (AB)
4084
5 - Condenser 2
6 - Compressor Soundproofing Box
7 - Power supply
* - Center distance for vibration damper holes Ø=18mm
AB - Standard Unit
AS - Low noise Unit
NB: The measures are in mm.
The drawing is referred to unit
with cooling tower condensers.
Weights and position of the centre of gravity in transport and operation
Mod.
Version
VB
420.1
VD
VR
VB
480.1
VD
VR
Acustic
version
A
B
AB
AS
AB
AS
AB
AS
AB
AS
AB
AS
AB
AS
799
807
795
803
797
801
799
807
795
803
797
801
418
426
420
428
424
431
418
426
420
428
424
431
W1
522
530
529
537
581
593
529
537
539
546
588
600
Operation
Antivibration dampers
W2
W3
711
709
757
770
729
720
776
782
819
812
867
868
721
719
767
780
742
733
789
795
829
822
877
879
Transport
W4
521
540
523
541
576
594
528
547
532
550
583
601
TOTAL
WEIGHT
2462
2597
2502
2637
2787
2922
2496
2631
2546
2681
2821
2956
A
B
799
807
795
803
797
801
799
807
795
803
797
801
418
426
420
428
424
431
418
426
420
428
424
431
TOTAL
WEIGHT
2266
2401
2299
2434
2554
2689
2306
2441
2347
2482
2594
2729
NB: The weight are in kg.
Minimum space required for operation
1500
A
W4
W1
B
1000
CP1
1000
W2
W3
1000
Refer to the figure alongside for the dimensions of the
unit.
To correctly install the unit, comply with the measurements for the free area that must be left around the
machine, as shown in the figure. The distances must
be doubled if the unit is to be installed in a pit.
NOTE: Allow for a clear area of not less than
1.5 meters above unit.
The areas installation must be doubled if multiple units
are installed.
W1÷ W4 - they indicate the position where the
spring antivibration dampers (accessory) are installed.
27
DIMENSIONAL AND PHYSICAL DATA
Mod.
540.1
1118 (AS)
792
1955
1
1973 (AB)
3
13
344
832
7
344
832
1372
2002 (AS)
6
1367
4
400
88
725*
378
82
400
1157
88
522
1157
2400
1600*
3914
4114
1257
1036 (AB)
NOTES:
1 - Compressor 1
2 - Compressor 2
3 - Evaporator
4 - Condenser 1
5 - Condenser 2
6 - Compressor Soundproofing Box
7 - Power supply
* - Center distance for vibration damper holes Ø=18mm
1257
AB - Standard Unit
AS - Low noise Unit
NB: The measures are in mm.
The drawing is referred to unit
with cooling tower condensers.
Weights and position of the centre of gravity in transport and operation
Mod.
Version
VB
540.1
VD
VR
Acustic
version
A
B
AB
AS
AB
AS
AB
AS
799
807
795
803
797
801
420
428
422
431
426
433
W1
562
568
573
579
643
654
Operation
Antivibration dampers
W2
W3
774
772
821
836
799
789
847
853
918
910
967
969
Transport
W4
561
578
566
583
638
655
TOTAL
WEIGHT
2669
2804
2727
2862
3110
3245
A
B
799
807
795
803
797
801
420
428
422
431
426
433
TOTAL
WEIGHT
2468
2603
2515
2650
2856
2991
NB: The weight are in kg.
Minimum space required for operation
1500
A
W4
W1
B
1000
CP1
W2
W3
1000
28
1000
Refer to the figure alongside for the dimensions of the
unit.
To correctly install the unit, comply with the measurements for the free area that must be left around the
machine, as shown in the figure. The distances must
be doubled if the unit is to be installed in a pit.
NOTE: Allow for a clear area of not less than
1.5 meters above unit.
The areas installation must be doubled if multiple units
are installed.
W1÷ W4 - they indicate the position where the
spring antivibration dampers (accessory) are installed.
DIMENSIONAL AND PHYSICAL DATA
Mod.
600.1
1118 (AS)
792
1
2061 (AB)
6
3
1460
2089 (AS)
1367
1955
876
344
344
876
7
4
375
88
725*
378
82
88
1157
2350
1600*
3914
4114
522
1257
1036 (AB)
NOTES:
1 - Compressor 1
2 - Compressor 2
3 - Evaporator
4 - Condenser 1
375
1157
5 - Condenser 2
6 - Compressor Soundproofing Box
7 - Power supply
* - Center distance for vibration damper holes Ø=18mm
1257
AB - Standard Unit
AS - Low noise Unit
NB: The measures are in mm.
The drawing is referred to unit
with cooling tower condensers.
Weights and position of the centre of gravity in transport and operation
Mod.
Version
VB
600.1
VD
VR
Acustic
version
A
B
AB
AS
AB
AS
AB
AS
799
807
795
803
797
801
422
430
424
433
428
435
W1
633
636
647
650
722
730
Operation
Antivibration dampers
W2
W3
881
879
929
946
912
901
962
969
1042
1034
1093
1095
Transport
W4
631
647
639
655
716
731
TOTAL
WEIGHT
3023
3158
3100
3235
3514
3649
A
B
799
807
795
803
797
801
422
430
424
433
428
435
TOTAL
WEIGHT
2703
2838
2765
2900
3135
3270
NB: The weight are in kg.
Minimum space required for operation
1500
A
W4
W1
B
1000
CP1
1000
W2
W3
1000
Refer to the figure alongside for the dimensions of the
unit.
To correctly install the unit, comply with the measurements for the free area that must be left around the
machine, as shown in the figure. The distances must
be doubled if the unit is to be installed in a pit.
NOTE: Allow for a clear area of not less than
1.5 meters above unit.
The areas installation must be doubled if multiple units
are installed.
W1÷ W4 - they indicate the position where the
spring antivibration dampers (accessory) are installed.
29
DIMENSIONAL AND PHYSICAL DATA
Mod.
710.2
227
445
3649
6
2
465
3
735
735
1356
1932 (AS)
1887 (AB)
1
296
296
7
4
88
225
5
NOTES:
1 - Compressor 1
2 - Compressor 2
3 - Evaporator
4 - Condenser 1
825
1142
825
1142
940*
665
1115
1218
88
225
3250
1600*
3884
4320
1251
5 - Condenser 2
6 - Compressor Soundproofing Box
7 - Power supply
* - Center distance for vibration damper holes Ø=18mm
1469
AB - Standard Unit
AS - Low noise Unit
NB: The measures are in mm.
The drawing is referred to unit
with cooling tower condensers.
Weights and position of the centre of gravity in transport and operation
Mod.
Version
VB
710.2
VD
VR
Acustic
version
A
B
AB
AS
AB
AS
AB
AS
799
803
795
803
797
801
446
457
448
459
453
459
Operation
Antivibration dampers
W1
W2
W3
W4
925
835
833
922
957
906
913
964
946
862
851
934
973
930
937
980
1063
988
979
1054
1101
1053
1054
1102
Transport
TOTAL
WEIGHT
3515
3740
3594
3819
4085
4310
A
B
799
803
795
803
797
801
446
457
448
459
453
459
TOTAL
WEIGHT
3253
3478
3318
3543
3755
3980
NB: The weight are in kg.
Minimum space required for operation
1500
W4
W1
A
B
1000
CP2
CP1
W2
W3
1000
30
1000
Refer to the figure alongside for the dimensions of the
unit.
To correctly install the unit, comply with the measurements for the free area that must be left around the
machine, as shown in the figure. The distances must
be doubled if the unit is to be installed in a pit.
NOTE: Allow for a clear area of not less than
1.5 meters above unit.
The areas installation must be doubled if multiple units
are installed.
W1÷ W4 - they indicate the position where the
spring antivibration dampers (accessory) are installed.
DIMENSIONAL AND PHYSICAL DATA
Mod.
820.2 - 950.2
91
4373
6
1993 (AS)
1924 (AB)
1
2
1356
500
779
779
3
296
296
7
4
88
225
5
940*
665
1115
1218
NOTES:
1 - Compressor 1
2 - Compressor 2
3 - Evaporator
4 - Condenser 1
800
800
1142
88
225
1142
3200
1600*
3884
4359
1282
104
5 - Condenser 2
6 - Compressor Soundproofing Box
7 - Power supply
* - Center distance for vibration damper holes Ø=18mm
1477
AB - Standard Unit
AS - Low noise Unit
NB: The measures are in mm.
The drawing is referred to unit
with cooling tower condensers.
Weights and position of the centre of gravity in transport and operation
Mod.
Version
VB
820.2
VD
VR
VB
950.2
VD
VR
Acustic
version
A
B
AB
AS
AB
AS
AB
AS
AB
AS
AB
AS
AB
AS
800
804
796
804
798
802
800
804
796
804
798
802
475
487
477
489
482
489
473
485
475
487
480
487
W1
1198
1216
1218
1228
1342
1368
1207
1224
1231
1242
1351
1378
Operation
Antivibration dampers
W2
W3
1224
1224
1306
1319
1256
1244
1333
1347
1413
1405
1486
1492
1222
1222
1304
1317
1260
1247
1336
1350
1411
1402
1483
1489
Transport
W4
1198
1228
1206
1240
1334
1374
1207
1237
1219
1254
1343
1383
TOTAL
WEIGHT
4845
5070
4924
5149
5495
5720
4858
5083
4957
5182
5508
5733
A
B
800
804
796
804
798
802
800
804
796
804
798
802
475
487
477
489
482
489
473
485
475
487
480
487
TOTAL
WEIGHT
4429
4654
4494
4719
5005
5230
4450
4675
4530
4755
5026
5251
NB: The weight are in kg.
Minimum space required for operation
1500
W4
W1
A
B
1000
CP2
CP1
W2
W3
1000
1000
Refer to the figure alongside for the dimensions of the
unit.
To correctly install the unit, comply with the measurements for the free area that must be left around the
machine, as shown in the figure. The distances must
be doubled if the unit is to be installed in a pit.
NOTE: Allow for a clear area of not less than
1.5 meters above unit.
The areas installation must be doubled if multiple units
are installed.
W1÷ W4 - they indicate the position where the
spring antivibration dampers (accessory) are installed.
31
DIMENSIONAL AND PHYSICAL DATA
Mod.
1100.2 - 1200.2
91
4373
6
2
2090 (AS)
2061 (AB)
1
876
876
1454
3
344
344
7
4
88
250
5
990*
665
1165
1256
NOTES:
1 - Compressor 1
2 - Compressor 2
3 - Evaporator
4 - Condenser 1
800
1157
88
250
800
1325
61
5 - Condenser 2
6 - Compressor Soundproofing Box
7 - Power supply
* - Center distance for vibration damper holes Ø=18mm
1157
3200
1600*
3914
4402
1477
AB - Standard Unit
AS - Low noise Unit
NB: The measures are in mm.
The drawing is referred to unit
with cooling tower condensers.
Weights and position of the centre of gravity in transport and operation
Mod.
Version
VB
1100.2
VD
VR
VB
1200.2
VD
VR
Acustic
version
A
B
AB
AS
AB
AS
AB
AS
AB
AS
AB
AS
AB
AS
796
800
792
800
794
798
796
800
792
800
794
798
470
482
472
484
477
484
470
482
472
484
477
484
W1
1408
1427
1439
1450
1623
1650
1452
1470
1493
1502
1693
1719
Operation
Antivibration dampers
W2
W3
1272
1260
1353
1352
1313
1287
1388
1388
1510
1486
1580
1570
1312
1299
1393
1393
1362
1335
1438
1438
1574
1549
1645
1635
Transport
W4
1394
1427
1411
1450
1597
1640
1437
1470
1464
1502
1666
1708
TOTAL
WEIGHT
5334
5559
5450
5675
6216
6441
5501
5726
5654
5879
6483
6708
A
B
796
800
792
800
794
798
796
800
792
800
794
798
470
482
472
484
477
484
470
482
472
484
477
484
TOTAL
WEIGHT
4914
5139
5008
5233
5690
5915
5077
5302
5200
5425
5941
6166
NB: The weight are in kg.
Minimum space required for operation
1500
W4
W1
A
B
1000
CP2
CP1
W2
W3
1000
32
1000
Refer to the figure alongside for the dimensions of the
unit.
To correctly install the unit, comply with the measurements for the free area that must be left around the
machine, as shown in the figure. The distances must
be doubled if the unit is to be installed in a pit.
NOTE: Allow for a clear area of not less than
1.5 meters above unit.
The areas installation must be doubled if multiple units
are installed.
W1÷ W4 - they indicate the position where the
spring antivibration dampers (accessory) are installed.
HYDRAULIC CONNECTIONS
General rules
A mesh filter (hole Ø ≤ 1 mm) must be installed on water inlet connections of all heat exchangers of the unit, otherwise
warranty is immediately forfeited. The filter performs the function of blocking any foreign matter in the system’s plumbing
circuit (shavings, machining debris, etc.). This prevents the shell and tube heat exchanger pipes from clogging then possibly freezing (and therefore bursting).
Comply with the local laws governing safety matters in order to correctly design the hydraulic circuit. The following information gives
suggestions on how to correctly install the unit.
1) Standard supply.
• Standard supply includes a differential pressure switch situated between the water inlet and outlet of the shell and tube evaporator
to avoid freezing if the water flow stops for any reason.
Activation is calibrated for a 80 mbar ±5 Δp, while resetting occurs with a Δp of 105 mbar ±5.
The differential pressure switch opens the contact and shuts down the unit when the water delivery decreases and Δp ≤ 80 mbar ±5.
The differential pressure switch closes and therefore the unit can restart when the water delivery increases and Δp ≤ 105 mbar ±5.
• The unit can be supplied (accessory) with an antifreeze heater an protection of the evaporator. This enables protecting the unit from
winter frost down to an air temperature = -10°C.
2) With hydronic kit accessory.
• Besides the standard accessories, the unit is equipped with all the hydraulic components, as specified in the
“Options and accessories” section.
General suggestions
• The pipes must have the least possible number of bends to minimize load losses and must be adequately supported in order to
prevent the connections of the unit from being excessively stressed.
• Install on-off valves near components that need to be serviced to isolate them when maintenance work needs to be done and to
allow them to be replaced without having to discharge the system.
• Before isolating the pipes and charging the system, carry out preliminary inspections to make sure that there are no leaks.
• Isolate all the chilled water pipes to prevent condensation from forming along the pipes themselves. Make sure that the material
used is the steam barrier type, failing this, cover the insulation with an appropriate protection. Also make sure that the air venting
valves can be accessed through the insulation.
• Do not forget to install or at least allow for the installation of pressure and temperature reading instruments on the inlet and outlet
parts of the hydraulic circuit. These instruments will allow you to monitor the operation of the system.
• The circuit can be kept under pressure by means of an expansion tank and a pressure reducer. A plant filling unit can also be used in
order to automatically charge the system and keep it at the desired pressure if it drops below a certain pressure value. Install manual
or automatic values in the highest point of the system to eliminate air from the circuit.
Fit manual or automatic valves at the highest point in the circuit in order to vent air from the circuit.
• If anti-vibration mounts are installed under the unit, it is recommended to use flexible couplings before and after the water
circulation pump and near the unit.
• Install a cock on the outlet of the unit in order to regulate the water flow.
Precautions for the Winter
The water could freeze and damage the exchanger of the unit and other parts of the system during the winter period, if the system
was to remain at a standstill. This problem can be obviated in 3 different ways:
1. Drain the system completely, taking care to drain the exchangers and the pumps (if present) in order to drain the unit’s plumbing
system completely, open the water drain ball valves and the air vent valves.
N.B.
- The shell and tube evaporator is equipped with an
air vent and a water drain cock (Fig.1).
CONDENSER/
EVAPORATOR
PUMP
- The shell and tube condenser is equipped with a
HEAT RECOVERY
Fig. 2
Fig. 1
AIR VENT
AIR VENT
water drain (it is necessary unscrew the bolt) Fig.3.
- For the condenser, it is necessary to install the air
Fig. 3
valve on the top of the water pipe.
2. Operate with brine mixture taking account, depending on the % of glycol, of the factor of correction of the
refrigerating capacity, power input, water flow rate and
losses of head (see the paragraphe “Correction factor
for the use of glycol“ on the section “GENERAL SPECIFICATIONS - IR UNIT FOR COOLING MODE ONLY “).
WATER DRAIN
WATER DRAIN
WATER DRAIN
3. If it is certain that the unit will always be powered throughout the winter, the unit is able to protect itself from freezing, down to a
temperature of -10°C: this is possible thanks to the antifreeze electric heating element installed on the exchanger and intelligent control of the water pump that must be governed by the microprocessor board (see the “Electric Connections” section).
33
HYDRAULIC CONNECTIONS
Cooling tower condenser (4T5)
Mod. 280.1 ÷ 600.1
belloni
belloni
IN
COND
OUT
COND
IN
OUT
EVAP
IN
EVAP
Mod. 710.2 ÷ 1200.2
IN
COND
IN
OUT
COND
IN
OUT
EVAP
IN
EVAP
City water condenser (4P5)
Mod. 280.1 ÷ 600.1
belloni
belloni
OUT
IN
OUT
EVAP
IN
EVAP
Mod. 710.2 ÷ 1200.2
OUT
OUT
IN
IN
OUT
EVAP
MOD.
280.1
IN - OUT
EVAPORATOR
IN - OUT
CONDENSER
34
320.1
360.1
420.1
480.1
540.1
IN
EVAP
600.1
710.2
820.2
950.2
1100.2 1200.2
DN125 DN125 DN125 DN150 DN150 DN150 DN200 DN150 DN200 DN200 DN200 DN200
VIC
VIC
VIC
VIC
VIC
VIC
VIC
VIC
VIC
VIC
VIC
VIC
TOWER
DN100 DN100 DN100 DN100 DN100 DN125 DN125 DN100 DN100 DN100 DN125 DN125
VIC
VIC
VIC
VIC
VIC
VIC
VIC
VIC
VIC
VIC
VIC
VIC
CITY
GAS F GAS F GAS F GAS F GAS F GAS F GAS F GAS F GAS F GAS F GAS F GAS F
2" 1/2 2" 1/2 2" 1/2 2" 1/2 2” 1/2
3"
3”
2" 1/2 2" 1/2 2” 1/2
3"
3”
HYDRAULIC CONNECTIONS
ISO-G
1”
11/4”
11/2”
2”
21/2”
3”
4”
5”
6”
8”
DN(mm)
25
32
40
50
65
80
100
125
150
200
EXTERNAL DIAMETER OD(mm)
33.7
42.4
48.3
60.3
76.1
88.9
114.3
139.7
168.3
219.1
A
15.875
15.875
15.875
15.875
15.875
15.875
15.875
15.875
15.875
19.050
B
7.137
7.137
7.137
8.738
8.738
8.738
8.738
8.738
8.738
11.913
O
30.226
38.989
45.085
57.150
72.260
84.938
110.084
135.500
163.957
214.401
1) Pipe groove inspections
Check the depth and diameter of the grooves and their distance from the pipe ends. Make sure that the
work has been carried out with care and that the end surface of the pipes is smooth and not ovalized.
Make sure that there are no notches, burrs or other imperfections that could impair the tightness.
Groove dimensions in mm A=16-B=8-C=57.2-D=1.6
D
1.600
1.600
1.600
1.600
1.981
1.981
2.108
2.134
2.159
2.337
T
1.651
1.651
1.651
1.651
2.108
2.108
2.108
2.769
2.769
2.769
T
2) Checking the seal and relative lubrication
Make sure that the type of seal used is compatible with the nature and temperature of the fluid. Signal
green EPDM seals are used.
Apply a film of grease to the seal: on the back, on the side flanks and on the inner lips that contact the
pipe. Work in conditions of the utmost cleanliness as particles of dirt could damage the seal. Always
and only use synthetic grease. Greasing makes it easier to fit the seal on the pipe and improves the
tightness. It also allows the seal to slide within the connection, avoiding tensions and projections near
the bolts.
3) How to fit the seal
Fully insert the seal into the end of a pipe. Make sure that the seal lips adhere to the pipe itself.
4) Alignment
Align the pipes and move their ends near to each other. Now push the seal, centering it on the two pipe
ends. The seal must remain inside the grooves.
5) Joint assembly
Remove one bolt and loosen (without removing) the other one. Seat part of the body of the joint at the
bottom, between the pipe ends, inserting and edges of the grooves. Now seat the other part of the
body at the top, on the two ends, and close the joint. Make sure that the parts of the body of the joint
touch each other.
6) Nut torquing
Fit the previously removed bolt back in place and tighten both nuts by hand. Now torque them with the
relative wrench, tightening them alternately a few turns.
WARNING:
If one nut is fully tightened at a time, the seal could slip between the jaws of the opposite side of the
joint.
35
HYDRAULIC CONNECTIONS
Basic diagram Basic Version VB [SOURCE SIDE]
OUT
OUT
IN
CHILLER
IN
S
I=
S=
only for unit with
closed water system
User system
Source
Pressure gauge
Basic diagram Basic Version VB [USER SYSTEM SIDE]
Thermometer
The following figures represent connections to the evaporator circuit.
IMPORTANT: There must be a constant flow of water to the exchanger .
On-off and/or water
flow rate regulating valve
Monitoring electronics
(governor)
OUT
OUT
Pump
Filter
IN
Tank
IN
Expansion tank
Air vent valve
CHILLER
Safety valve
Basic diagram for units with Heat Recovery [USER SYSTEM SIDE]
Coupling
The basic diagram given is valid for all the Special Versions VD - VR
The figure below shows the basic diagram of the portion of the system with the
heat exchanger used for recovering partially or totally heating power that would
otherwise be disposed of in the air.
Water filling unit
A
B
AB
Three-way driven valve
Recovery water flow inlet probe
IN
REC
IN
QAB
QB
QA
OUT
REC
OUT
QAB
I
QB
Recovered hot water tank
Valve regulating diagram Three-way driven valve
WATER
0/24!4!
!#15!
FLOW RATE
To prevent problems from occurring when the machine is started with
very cold water, you are strongly advised to install a mixer valve as
shown in the diagram.
The valve must be regulated to suit the temperature at which the water flows into the recovery part (see diagram): the graph on the right
shows the type of adjustment to use.
FOR HEAT RECOVERY VERSION (VR) THE MANAGEMENT
IS IN CHARGE OF CUSTOMER (PUMPS, VALVES, ECC).
36
1!" 1!
1"
Recovery
INLET temperature
²C
²C
4EMPERATURA
).'2%33/2ECU
HYDRAULIC CONNECTIONS
Hydraulic circuit for heat pump reversible water side IW-BW
Cooling mode
Heating mode
IU
IU
SS
PS
PI
SS
PS
PI
V3
V3
V1
V1
V4
V4
V2
V2
CN
EV
DESCRIPTION
Condensatore
Evaporatore
Impianto utente
Pompa impianto
Pompa sorgente
CN
EV
IU
PI
PS
CN
EV
DESCRIPTION
Scambiatore sorgente
Valvola a tre vie
Valvola a tre vie
Valvola a tre vie
Valvola a tre vie
SS
V1
V2
V3
V4
USER
SOURCE
NOT USED
Hydraulic circuit for heat recovery version VR
Recovery OFF
Recovery ON
IR
SP
PR
PP
IR
SP
RECUP.
PR
PP
ON
OFF
CN
37
Recovery
OFF
ON
R
39
41
PS
ON
OFF
42
TEMP. IR
PR
OFF
ON
CN
CHILLER
CN
CP
EV
IR
IU
DESCRIPTION
Condenser
Compressor
Evaporator
Recovery system
User system
PI
PS
PR
SS
VE
CHILLER
CP
VE
CP
R
DESCRIPTION
System pump
Source pump
Recovery pump
Source exchanger
Expansion valve
VE
USER
SOURCE
NOT USED
Victaulic connections and water flow switch
WATER FLOW
SWITCH
These comprise two wet connections of the Victaulic type (Fig. 1-A) composed by steel joint (Fig. 1-B) and rubber packing not installed (supplied
with the unit). The steel joints are suitable to be welded or threaded.
Nota:
Supplied as accessory (see “Accessory and optional equipment”)
VICTAULIC
A
TO WELD /
TO THREAD
B
37
ELECTRICAL CONNECTIONS
General rules
The appliance must be wired in compliance with the laws in force in the country in which it is installed. The units are supplied fully
wired in the factory and pre-engineered for connection to the electricity main. The electric panel is made in compliance with the technical standards in force in the European Union.
Structure of the electric panel
All the electrical components are contained in a closed casing protected against the atmospheric agents and inspectionable by opening the front door after removing the front panel. The door for accessing the power section is locked by the mechanism.
Access for the supply cables and earth cable (PE) is permitted through the opening on the botton of the electric panel.
Composition of the system
The system comprises an electromechanical part consisting of the power circuit, with disconnecting device, contactors, fuses or
thermal cutouts, transformer, and another part comprising the Microprocessor control system.
NOTES: Refer to the wiring diagram supplied with the unit for the layout of the electric panel.
Electrical connections
All electrical connections must be carried out by qualified personnel in the absence of electric power. The table below gives the electrical specifications of the different constructional configurations of the units.
IR / IW / BR / BW unt, VB / VD / VR version
UNIT
280.1
320.1
360.1
420.1
480.1
Power supply
TOTAL FLA
TOTAL FLI
TOTAL MIC
AB
AB
AB
162
99
520
181
110
612
211
129
665
232
144
436
270
169
465
NOTES:
FLA= Power draw at maximum tolerated conditions
LRA= Surge current
540.1 600.1
400 - 3 - 50
309
340
190
209
586
650
710.2
820.2
950.2
1100.2 1200.2
UM
V-ph-Hz
422
257
876
464
287
668
540
339
735
618
380
895
680
418
990
A
kW
A
FLI= Electric power draw at maximum tolerated conditions
MIC= Maximum surge current of the unit
Compressor specification
UNIT
280.1
320.1
360.1
420.1
480.1
Power supply
FLA
FLI
LRA
CP 1
CP 2
CP 1
CP 2
CP 1
CP 2
162
99
520
-
181
110
612
-
211
129
665
-
232
144
436
-
270
169
465
-
540.1 600.1
400 - 3 - 50
309
340
190
209
586
650
-
710.2
820.2
950.2
1100.2 1200.2
UM
V-ph-Hz
211
211
129
129
665
665
232
232
144
144
436
436
270
270
169
169
465
465
309
309
190
190
586
586
340
340
209
209
650
650
For a complete information see the section “Layout of the main component of the unit”.
LAYOUT OF THE MAIN COMPONENT OF THE UNIT
MOD. 280.1 ÷ 600.1
MOD. 710.2 ÷ 1200.2
ELECTRIC PANEL
CP1
38
EVAPORATOR
ELECTRIC PANEL
CP1
EVAPORATOR
EVAPORATORE
CP2
A
kW
A
ELECTRICAL CONNECTIONS
1) Connection to the electricity main
• Power supply line;
The machine’s power supply line must be laid by following a clearly defined route in order to make it as correct as possible any without
any breaks. Pass the line through the opening on the button of the electrical panel. Secure the line integral with the structure of the
machine. Then continue inside the panel and connect the conductors directly to the input terminals of the main disconnecting device
of the machine.
• Power supply system;
The power cables of the machine’s supply line must be taken from a system of symmetrical three-phase voltages and of a separate
protection conductor.
V= 400V ± 10%
f= 50 Hz
• Protection on supply side:
An automatic switch must be installed on the supply side of the side in order to protect against any overcurrents and indirect contacts
that could occur when the machine is operating.
It is advisable to install an automatic current limiter switch in order to limit the effective short-circuit current in the connecting point of
the machine. This allows a protection device with a lower breaking capacity than that required in the connection point to be sized like
the main circuit-breaker of the machine.
The line and switch must be coordinated in compliance with the current laws governing electrical safety matters, regarding the type
of installation and environmental conditions in which the machine must operate.
• Protection conductor (ground wire):
The protection conductor from the feeder line must be connected straight to the ground screw identified by code “PE”, which ensures
the equipotential connection of all metal grounding points and structural parts of the machine.
2) Electric panel
• Protection degree:
The electric panel casing is made from sheet metal and has IP54 protection rating at the doors directly accessible from the outside.
The other parts of the casing guarantee a protection degree that is at least equivalent to IP22, as established by the current laws in
force: this has been achieved since the panel has further protection against the penetration of solid foreign bodies and atmospheric
agents thanks to the machine structure in which it is housed.
• Starting and stopping function:
The red handle on the panel door directly acts on the main circuit-breaker. The handle also acts as a door lock since it ensures that
the machine is only powered when the door is shut. The stopping function carried out by the main circuit-breaker is classified as type
“0” since the machine is stopped by immediately cutting off the power supply.
3) Reference standards
• The provisions established by the following Directives have been complied with to ensure the safety of the electrical products placed
on the European Union market:
- Low Voltage Directive 2006/95 EEC which also includes the following harmonized standards:
CEI EN 60335-1 and 60335-2-40.
Classification:CEI EN 60204-1. Safety of machinery. Electrical equipment of machines. Part 1:
General rules.
- Directive 2004/108/EEC concerning “Electromagnetic compatibility”.
4) User connection
On the electric panel are available the terminal connection for:
a) control of a pump group with 1 or 2 pumps and relative safety devices (relay 230V-2A)
b) clear contact input for remote ON/OFF of the unit
The following additional connections are present on Heat recovery versions:
c) general alarm relay (SPDT NO/NC 230V-2A)
d) recovery circulating pump control and relative safety devices (relay 230V-2A)
e) remote input for enabling of recovery mode
For more details refer to the wiring diagram of the unit.
39
R134A PROTECTION DEVICES
Protection devices HIGH PRESSURE
The unit is protected against risk of overpressure by means of 4 levels protection chain.
Each compressor and so each circuit is equipped with:
1) ATC (Cooling Capacity Control)
2) high pressure transducer connected to electronic controller
3) high pressure automatic switch connected to electronic controller
4) high pressure manual switch connected to compressor contactor command and to electronic controller
5) high pressure safety valve
Protection devices technical data
LEVEL
1
2
3
4
5
Device
High pressure
transducer
High pressure
transducer
High pressure
automatic switch
High pressure
manual switch
High pressure
safety valve
Trip out
17 bar
17.9 bar
18 bar
20 bar
22 bar
Trip in
-
13.9 bar
14 bar
MANUAL RESET
20 bar
connected to
electronic controller
electronic controller
electronic controller
compressor contactor Discharge the refrigerant
command and electronic to atmosphere to reduce
cotroller
the system pressure
effect
Controls the cooling
stop the compressor
stop the compressor
stop the compressor
capacity product by the
Discharge the refrigerant
and the fans.
and the fans.
and the fans.
compressor to have a
to atmosphere to reduce
The electronic expansion The electronic expansion The electronic expansion
correct operation inside
the system pressure
valve closed
valve closed
valve closed
the admissible limits
reset *
1) reset the button
YES by keyboard if the
present on the manual
YES by keyboard after
high pressure switch has
the solution of the propressure switch
trip-in and after the solublem that generates the
tion of the problem that
alarm
2) then reset the alarm
generates the alarm
by keyboard
Automatic
Not Necessary
*: For more details refers to section monitoring basic system.
Protection devices LOW PRESSURE
Protection devices DISCHARGE TEMPERATURE
LEVEL
1
2
LEVEL
1
2
Device
Low pressure
transducer
Low pressure
automatic switch
Device
Liquid Injection
(if present)
Discharge Temperature
Trip out
1 bar
0.4 bar
Trip out
110°C
130°C
Trip in
1.5 bar
1 bar
Trip in
100°C
120°C
connected to
electronic controller
electronic controller
connected to
electronic controller
electronic controller
effect
stop the compressor
and the fans.
The electronic expansion valve closed
stop the compressor
and the fans.
The electronic expansion valve closed
effect
activates the liquid injection
to the compressor, until
the discharge temperature
decrease down to the maximum admissible value
stop the compressor
and the fans.
The electronic expansion
valve closed
reset *
Automatic
YES by keyboard after the
solution of the problem that
generates the alarm
reset *
YES by keyboard if the
YES by keyboard
low pressure switch
after the solution of the has trip-in and after the
problem that generates solution of the problem
the alarm
that generates the
alarm
Protection devices LOW PRESSURE - MOP (Maximum Operation Low Pressure)
The electronic valve’s controller limits the maximum operation valve the low pressure as indicadet in the table.
LOW PRESSURE
MOP (Maximum Operation Low Pressure)
40
3.9 bar (15°C)
*
TC
SAC
CP
RM
RCO
SMC
RA
OUT
RIL
SIL
SUW*
CFT
TC
SIW
IN
PDW
EFT
SUW
RAE
OUT
:Tubazioni e componenti da isolare solo per unità IW/BW / Insulated pipes and
components only IW/BW units
:Tubazioni e componenti da isolare / Insulated pipes and components
:Gruppo compressore / Compressor group
:Rubinetto aspirazione (optional) / Suction valve (optional)
:Iniezione liquido (optional) / Liquid injection (optional)
VEE
PPS (service)
PPS (service)
FD
RL
IDL
PPS (service)
PPS (service)
VEE
IDL
FD
RL
PPS (service)
PPS (service)
:solo per unità bicompressore / Only for units with 2 compressors
:solo per unità IW/BW, only for IW/BW units
PPS (service)
PAM
TAP
PAA
VPI
VPD
TBP
PBA
PPS (service)
TC
VSF
IN
TC
RIL
SIL
SUW*
CFT
RA
OUT
IN
TC
SAC
CP
RM
RCO
SMC
TC
VSF
PPS (service)
PAM
TAP
PAA
VPI
VPD
TBP
PBA
PPS (service)
Description
DISCHARGE VALVE
ELECTRONIC EXPANSION VALVE
VSF
VPI
REFRIGERANT SAFETY VALVE
INCREASING CONTROL CAPACITY VALVE
DECREASING CONTROL CAPACITY VALVE
VEE
VPD
PIPE FOR REFRIGERANT FILLING
TC
HIGH PRESSURE TRANSDUCER
TAP
LOW PRESSURE TRANSDUCER
WATER OUTLET PROBE
SUW
TBP
DISCHARGE TEMPERATURE PROBE
WATER INLET PROBE
LIQUID INJECTION SOLENOID VALVE (OPTIONAL)
SUCTION TEMPERATURE PROBE
SMC
SIW
SIL
SAC
RM
LIQUID VALVE
RL
(OPTIONAL)
LIQUID INJECTION BALL VALVE (OPTIONAL)
OIL CRANKASE HEATER
EVAPORATOR ANTIFREEZE HEATER
SUCTION VALVE (OPTIONAL)
PRESSURE GAUGE WITH SCHRAEDER
DIFFERENTIAL WATER PRESSURE SWITCH
RIL
RCO
RAE
RA
PPS
PDW
MANUAL RESET HIGH PRESSURE SWITCH
AUTOMATIC LOW PRESSURE SWITCH
PAM
AUTOMATIC RESET HIGH PRESSURE SWITCH
PAA
LIQUID AND MOISTURE INDICATOR
IDL
PBA
DRIER FILTER
SHELL AND TUBE HEAT EVAPORATOR
EFT
FD
SCREW COMPRESSOR
SHELL AND TUBE CONDENSER
CP
CFT
REFRIGERANT FLOW DIAGRAM
Refrigerant flow diagram basic version VB
41
42
*
TC
SAC
CP
RM
RCO
SMC
SPD
RA
OUT
RIL
SIL
SUW*
CFT
TC
SIW
IN
PDW
EFT
SUW
RAE
OUT
:Tubazioni e componenti da isolare solo per unità IW/BW / Insulated pipes and
components only IW/BW units
:Tubazioni e componenti da isolare / Insulated pipes and components
:Gruppo compressore / Compressor group
:Rubinetto aspirazione (optional) / Suction valve (optional)
:Iniezione liquido (optional) / Liquid injection (optional)
VEE
PPS (service)
PPS (service)
FD
RL
IDL
PPS (service)
PPS (service)
VEE
IDL
FD
RL
PPS (service)
PPS (service)
:solo per unità bicompressore / Only for units with 2 compressors
:solo per unità IW/BW, only for IW/BW units
PPS (service)
PAM
TAP
PAA
VPI
VPD
TBP
PBA
PPS (service)
OUT
IN
TC
VSF
IN
TC
RIL
SIL
SUW*
CFT
RA
OUT
IN
TC
SAC
CP
RM
RCO
SMC
SPD
VSF
TC
PPS (service)
PAM
TAP
PAA
VPI
VPD
TBP
PBA
PPS (service)
OUT
IN
ELECTRONIC EXPANSION VALVE
DECREASING CONTROL CAPACITY VALVE
VEE
PIPE FOR REFRIGERANT FILLING
VPD
TC
LOW PRESSURE TRANSDUCER
TAP
TBP
WATER OUTLET PROBE
HIGH PRESSURE TRANSDUCER
SUW
DESUPERHEATER PLATE HEAT EXCHANGER
DISCHARGE TEMPERATURE PROBE
SMC
SPD
WATER INLET PROBE
SIW
LIQUID INJECTION SOLENOID VALVE (OPTIONAL)
SUCTION TEMPERATURE PROBE
SAC
SIL
DISCHARGE VALVE
RM
LIQUID VALVE
LIQUID INJECTION BALL VALVE (OPTIONAL)
RIL
RL
OIL CRANKASE HEATER
RCO
(OPTIONAL)
SUCTION VALVE (OPTIONAL)
EVAPORATOR ANTIFREEZE HEATER
RAE
PRESSURE GAUGE WITH SCHRAEDER
RA
DIFFERENTIAL WATER PRESSURE SWITCH
PDW
PPS
AUTOMATIC LOW PRESSURE SWITCH
MANUAL RESET HIGH PRESSURE SWITCH
PBA
AUTOMATIC RESET HIGH PRESSURE SWITCH
PAA
PAM
WATER OUT
OUT
WATER IN
LIQUID AND MOISTURE INDICATOR
IDL
IN
DRIER FILTER
SHELL AND TUBE HEAT EVAPORATOR
SCREW COMPRESSOR
SHELL AND TUBE CONDENSER
FD
EFT
CP
CFT
Description
REFRIGERANT FLOW DIAGRAM
Refrigerant flow diagram Desuperheaters Version VD
*
TC
SAC
CP
RM
RCO
SMC
SUW*
OUT
CFT
RA
OUT
RIL
SIL
SUW
RFT
IN
TC
AUTOMATIC LOW PRESSURE SWITCH
(OPTIONAL)
HIGH PRESSURE TRANSDUCER
WATER OUTLET PROBE
DISCHARGE TEMPERATURE PROBE
WATER INLET PROBE
LIQUID INJECTION SOLENOID VALVE (OPTIONAL)
SUCTION TEMPERATURE PROBE
DISCHARGE VALVE
:Tubazioni e componenti da isolare solo per unità IW/BW / Insulated pipes and
components only IW/BW units
:Tubazioni e componenti da isolare / Insulated pipes and components
:Gruppo compressore / Compressor group
:Rubinetto aspirazione (optional) / Suction valve (optional)
VPD
DECREASING CONTROL CAPACITY VALVE
ELECTRONIC EXPANSION VALVE
TAP
SUW
SMC
SIW
SIL
SAC
RM
LIQUID VALVE
LIQUID INJECTION BALL VALVE (OPTIONAL)
RIL
RL
OIL CRANKASE HEATER
SHELL AND TUBE HEAT RECOVERY
EVAPORATOR ANTIFREEZE HEATER
SUCTION VALVE (OPTIONAL)
PRESSURE GAUGE WITH SCHRAEDER
DIFFERENTIAL WATER PRESSURE SWITCH
RCO
RFT
RAE
RA
PPS
PDW
MANUAL RESET HIGH PRESSURE SWITCH
PBA
PAM
AUTOMATIC RESET HIGH PRESSURE SWITCH
PAA
WATER OUT
OUT
VEE
PPS (service)
PAM
TAP
PAA
VPI
VPD
TBP
PBA
PPS (service)
WATER IN
LIQUID AND MOISTURE INDICATOR
DRIER FILTER
IN
IDL
FD
PIPE FOR REFRIGERANT FILLING
TC
SAC
CP
RM
RCO
SMC
TC
SCREW COMPRESSOR
SHELL AND TUBE HEAT EVAPORATOR
CP
SHELL AND TUBE CONDENSER
EFT
CFT
Description
TC
RA
OUT
VSF
:Iniezione liquido (optional) / Liquid injection (optional)
SUW
RAE
OUT
RIL
SIL
OUT
SUW*
CFT
LOW PRESSURE TRANSDUCER
PDW
EFT
TC
SUW
IN
TBP
SIW
IN
PPS (service)
PPS (service)
VEE
PPS (service)
IDL
FD
RL
PPS (service)
PPS (service)
VEE
IDL
FD
RL
PPS (service)
RFT
IN
:solo per unità bicompressore / Only for units with 2 compressors
:solo per unità IW/BW, only for IW/BW units
PPS (service)
PAM
TAP
PAA
VPI
VPD
TBP
PBA
PPS (service)
TC
VSF
IN
REFRIGERANT FLOW DIAGRAM
Refrigerant flow diagram Total heat recovery VR
43
START-UP
General Rules
To validate the contractual warranty, the machine must be set at work by technicians from an authorized assistance center. Before
they are called, check to make sure that all parts of the installation have been completed, the unit levelled, the wet connections made
with the relative air vent and the electrical connections made.
MAINTENANCE
General Rules
Maintenance is of extreme importance if the plant is to operate in a regular way and give fade-free service. Have extraordinary maintenance work done by qualified and authorized personnel. Comply with the safety precautions given in the relative section of this manual
and take all the necessary precautions.
The following information is only a guide for the end user.
Routine maintenance
The inspections described below, to which the unit must be subjected, do not require specific technical know-how.
They merely include a few simple inspections involving certain parts of the unit.
Call an authorized assistance center if actual maintenance work is required.
The table below gives a recommended list of inspections which should be carried out at the indicated intervals.
DESCRIPTION
Visual inspection of the unit
Inspection of hydraulic circuit
Inspection of electrical system
Inspection of condensing system
Inspection and adjustment of operat. parameters
WEEKLY
MONTHLY
EVERY SIX MONTHS
•
•
•
•
•
• Visual inspection of the structure of the unit
When checking the condition of the parts that form the structure of the unit, pay particular attention to the parts liable to rust.
If traces of rust are noted, they must be treated with rust-inhibitor paint in order to eliminate or reduce the problem.
Check to make sure that the external panels of the unit are well fixed.
Bad fixing gives rise to noise and abnormal vibrations.
• Inspection of hydraulic circuit
Check visually to make sure that there are no leaks in the hydraulic circuit. If the pumping module accessory is installed, it is advisable
to make sure that the water filter is clean.
• Inspection of electrical system
Make sure that the power cable that connects the unit to the distribution panel is not torn, cracked or damaged in a way that could
impair its insulation.
• Inspection of the condensing system
WARNING: The finned pack exchanger has fins made of aluminium or some other thin material, thus even accidental contact could
cause cuts. Comply with the instructions in the relative section.
• Condensing coils
In view of the function of this component, it is very important for the surface of the exchanger to be as free as possible from clogging
caused by items that could reduce the fan’s air flow rate and, thus, the performances of the unit itself.
The following operations may be required:
- Remove all impurities (such as paper scraps, leaves, etc.) that could be clogging the surface of the bank either by hand or using a
brush (comply with the above mentioned safety prescriptions).
- If the dirt has deposited on the fins and is difficult to remove by hand, use a jet of compressed air or pressurized water on the aluminium surface of the coils, remembering to direct the jet in a vertical direction to prevent the fins from being damaged.
- “Comb” the coils with the relative tool, using the appropriate comb spacing for the fins if some parts of them are bent or squashed.
• Helical electric fans
Visually inspect these parts to make sure that the electric fans are well fixed to the bearing grille and that this latter is fixed to the
structure of the unit. Bad fixing gives rise to noise and abnormal vibrations.
• Reading and adjustment of the operating parameters
This control can be done using the pressure gauges (if installed) of the refrigerant circuits and using the pressure and temperature
gauges (if installed) of the hydraulic circuits of the unit (evaporator + heat recovery - if present)
44
MAINTENANCE
General considerations
The machine has been designed with a view to reducing the risks to persons and the environment in which it is installed, to the minimum. To eliminate residue hazards, it is therefore advisable to become as familiar as possible with the machine in order to avoid
accidents that could cause injuries to persons and/or damage to property.
a. Access to the unit
Only qualified persons who are familiar with this type of machine and who are equipped with the necessary safety protections (footwear, gloves, helmet, etc.) may be allowed to access the machine. Moreover, in order to operate, these persons must have been
authorized by the owner of the machine and be recognized by the actual Manufacturer.
b. Elements of risk
The machine has been designed and built so as not to create any condition of risk. However, residue hazards are impossible to eliminate during the planning phase and are therefore listed in the following table along with the instructions about how to neutralize them.
Part in question
Compressor and delivery
pipe
Residue hazard
Mode
Precautions
Burns
Contact with the pipes and/or compressor
Avoid contact by wearing
protective gloves
Excessive pressure
Turn off the machine,
check the high pressure switch
and safety valve
and condenser water pump
Delivery pipes,
heat recovery exchanger
Explosion
Pipes in general
Ice burns
Leaking refrigerant
Do not pull on the pipes
Electrocution, serious burns
Defective cable insulation, live metal
parts
Adequate electrical protection
(correctly ground the unit)
Electrical cables, metal parts
c. Pollution
The unit contains refrigerant gas and lubricating oil. When scrapping the unit these fluids must be recovered and disposed of in compliance with the regulations in force in the country where it is installed. The unit must not be abandoned during the scrapping stage.
45
SAFETY AND POLLUTION
General recommendations about the R134a refrigerant used
COMPOSITION / INFORMATION ON INGREDIENTS
Substance / Preparation :
Substance.
Components / Impurities :
R134a : Not classified as dangerous product.
Contains no other components or impurities which will influence the classification of the product.
HAZARDS IDENTIFICATION
Hazards identification :
FIRST AID MEASURES
First aid measures
- Inhalation :
- Skin contact :
- Eye contact :
- Ingestion :
General information :
FIRE-FIGHTING MEASURES
Flammable class :
Specific hazards :
Hazardous combustion products :
Extinguishing media
- Suitable extinguishing media :
Specific methods :
In high concentrations may cause asphyxiation.
Liquefied gas.
Gas/vapour heavier than air.
May reduce oxygen.
In high concentrations may cause asphyxiation. Symptoms may include loss of mobility/
consciousness. Victim may not be aware of asphyxiation.
Remove victim to uncontaminated area wearing self contained breathing apparatus. Keep
victim warm and rested. Call a doctor. Apply artificial respiration if breathing stopped.
If breathing is difficult, give oxygen.
Flush with plenty of water.
Clothing that has become saturated with the product must be removed immediately
because the product is absorbed through the skin.
Flush with lukewarm water for 15 minutes.
Seek medical advice.
Ingestion is not considered a potential route of exposure.
Obtain medical attention.
Non flammable.
Exposure to fire may cause containers to rupture/explode.
None.
All known extinguishants can be used.
If possible, stop flow of product.
Move away from the container and cool with water from a protected position.
Special protective equipment for fire : In confined space use self-contained breathing apparatus.
fighters
ACCIDENTAL RELEASE MEASURES
Personal precautions :
Evacuate area.
Ensure adequate air ventilation.
Wear self-contained breathing apparatus when entering area unless atmosphere is proved
to be safe.
Environmental precautions :
Try to stop release.
Prevent from entering sewers, basements and workpits, or any place where its
accumulation can be dangerous.
Clean up methods :
Ventilate area.
HANDLING AND STORAGE
Precautions in handling and storage : With air may form oxydant mixtures.
Personal protection :
Protect eyes, face and skin from liquid splashes.
Technical protective measures :
Good ventilation of the workplace required.
Storage :
Keep container below 50°C in a well ventilated place.
Handling :
Open valve slowly to avoid pressure shock.
Suck back of water into the container must be prevented.
Do not allow backfeed into the container.
Use only properly specified equipment which is suitable for this product, its supply pressure
and temperature. Contact your gas supplier if in doubt.
Refer to supplier’s container handling instructions.
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SAFETY AND POLLUTION
EXPOSURE CONTROLS / PERSONAL PROTECTION
Personal protection :
Ensure adequate ventilation.
- Respiratory protection :
In case of insufficient ventilation, wear suitable respiratory equipment.
- Hand protection :
Use rubber gloves.
- Skin protection :
Skin protection appropriate to the conditions of use should be provided.
- Eye protection :
Face shield.
- Head protection :
Protective helmet.
- Foot protection :
Steel pointed safety shoes (metatarsal protection is recommended).
Industrial hygiene :
When using, do not eat, drink or smoke.
Emergency eye wash fountains and safety showers should be available in the immediate
vicinity of any potential exposure.
Occupational Exposure Limits :
1,1,1,2-Tetrafluoroethane (R 134a) : OEL (UK)-LTEL [ppm] : 1000
Simbology
PHYSICAL AND CHEMICAL PROPERTIES
Physical state at 20 °C :
Liquefied gas.
Colour :
Colourless.
Odo(u)r :
Ethereal.
pH value :
Neutral.
Boiling point [°C] :
-26.5
Vapour pressure, 20°C :
666.1 kPa
Vapour pressure, 50°C :
1319.0 kPa
Relative density, liquid (water=1) : 1.21 Kg/l
Viscosity at 25°C [mPa.s] :
0.205
Solubility in water [mg/l] :
0.15 wt %
Flash point [°C] :
Not flammable.
Auto-ignition temperature [°C] :
> 750
Other data :
Gas/vapour heavier than air. May accumulate in confined spaces, particularly at or below
ground level.
STABILITY AND REACTIVITY
Stability and reactivity :
Stable under normal conditions.
Hazardous decomposition products :
Halogenous acid, halogenous carbide.
Materials to avoid :
Explosives and flammable materials.
Organic peroxide.
Alkaline metals, Al, Zn, Be etc in powder.
Conditions to avoid :
Not flammable with air in normal temperature and pressure conditions.
TOXICOLOGICAL INFORMATION
Undesirable human health effects : Heart arhythmia.
Heart sensibility:
312’975 mg/m3.
Anaesthetic effects:
834’600 mg/m3.
- Inhalation :
Lung edema.
Rat inhalation LC50 [mg/l/4h] :
567
CCTN Carcinogenicity category (Italy) : Does not show any cancerogenic, teratogenic and mutagenic effects.
Narcosis :
Narcotic effets above TLV.
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SAFETY AND POLLUTION
ECOLOGICAL INFORMATION
Ecological effects information :
Environmental precautions :
Ozone depletion factor [R11=1] :
Global warming factor [CO2=1] :
DISPOSAL CONSIDERATIONS
General :
Disposal method :
TRANSPORT INFORMATION
UN No. :
H.I. nr :
ADR/RID
- Proper shipping name :
- ADR Class :
- ADR/RID Classification code :
- Labelling ADR :
Other transport information :
compartment.
No known ecological damage caused by this product.
Prevent from entering sewers, basements and workpits, or any place where its
accumulation can be dangerous.
0
0.28
Do not discharge into any place where its accumulation could be dangerous.
Contact supplier if guidance is required.
Consult supplier for specific recommendations.
3163
20
LIQUEFIED GAS, N.O.S. (1,1,1,2-Tetrafluoroethane (R 134a))
2
2A
Label 2.2 : Non flammable, non toxic gas.
Avoid transport on vehicles where the load space is not separated from the driver’s
Ensure vehicle driver is aware of the potential hazards of the load and knows what to do in
the event of an accident or an emergency.
Before transporting product containers :
- Ensure that containers are firmly secured.
- Ensure cylinder valve is closed and not leaking.
- Ensure valve outlet cap nut or plug (where provided) is correctly fitted.
- Ensure valve protection device (where provided) is correctly fitted.
- Ensure there is adequate ventilation.
- Compliance with applicable regulations.
REGULATORY INFORMATION
EC Labelling :
- Symbol(s) :
- R Phrase(s) :
- S Phrase(s) :
Not classified as dangerous preparation/substance.
None.
None.
None.
OTHER INFORMATION
Asphyxiant in high concentrations.
Keep container in a well-ventilated place.
Do not breathe the gas.
The hazard of asphyxiation is often overlooked and must be stressed during operator training.
Receptacle under pressure.
Ensure all national/local regulations are observed.
This Safety Data Sheet has been established in accordance with the applicable European Directives and applies to all
countries that have translated the Directives in their national laws.
Before using this product in any new process or experiment, a thorough material compatibility and safety study should be
carried out.
Details given in this document are believed to be correct at the time of going to press. Whilst proper care has been taken in
the preparation of this document, no liability for injury or damage resulting from its use can be accepted.
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SAFETY AND POLLUTION
First aid
• Move the victim away from the toxic source, keep him warm and allow him to rest.
• Administer oxygen if necessary.
• Proceed with artificial respiration if necessary.
• Give heart massage in the case of heart failure.
• Immediately seek medical help.
Contact with the skin:
• Immediately thaw the affected parts under running lukewarm water.
• Remove contaminated clothing (garments may stick to the skin in the case of ice burns) if they have not adhered to the skin.
• Seek medical assistance if necessary.
Contact with the eyes:
• Immediately rinse the eyes with physiologic eyewash or clean water for at least 10 minutes with the eyelids pulled open.
• Seek medical assistance if necessary.
Swallowing:
• Do not make the victim vomit. If the victim is conscious, have him rinse his mouth out with clean water and then drink 200, 300 ml
of water.
• Immediately seek medical help.
• Do not administer adrenaline or sympathomimetic drugs after exposure owing to the risk of cardiac arrhythmia.
For further information about the characteristics of the refrigerant, consult the technical briefs that can be obtained from manufacturers of refrigerant products.
The manufacturer declines all responsibility for any inaccuracies in this manual due to printing or typing errors.
The reserves the right to modify the products contents in this catalogue without previous notice.
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NOTE
50
NOTE
51
Codice 3QE27781
Ferroli spa ¬ 37047 San Bonifacio (Verona) Italy ¬ Via Ritonda 78/A
tel. +39.045.6139411 ¬ fax +39.045.6100933 ¬ www.ferroli.it
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