NANO Precision NPC 015 User manual

n-psi-C1-SM-01-01-US
NPC 015 - 230 60 Hz UL
SERVICE MANUAL

1
The data inside this manual are not binding and they can be modified by the manufacturer without notice. All rights reserved.
NPC 015 TO 230
I NDEX
I NDEX ...............................................................................................................................................................1
G ENERAL I NFORMATION ................................................................................................................................3
1.1 How to interpret the model...................................................................................................... 4
S AFETY .............................................................................................................................................................5
2.1 General .................................................................................................................................... 5
2.2 Liquids of the user circuit........................................................................................................ 5
2.3 Lifting and carriage precautions .............................................................................................. 5
2.4 Installation precautions............................................................................................................ 6
2.5 Precautions during operation................................................................................................... 6
2.6 Maintenance and repair precautions........................................................................................ 6
2.7 Refrigerant gases ..................................................................................................................... 7
2.7.1 Refrigerant safety schedule ....................................................................................................................... 7
T ECHNICAL DATA ............................................................................................................................................9
3.1 Other data relative to the standard machines........................................................................... 9
3.1.1 Dimensions ................................................................................................................................................ 9
3.1.2 Characteristics of pumps and of the fans .................................................................................................. 9
3.1.3 Sound Level Measurements ..................................................................................................................... 10
D ESCRIPTION .................................................................................................................................................11
4.1 Components............................................................................................................................. 11
4.2 Cooling circuit ......................................................................................................................... 11
4.3 Compressors ............................................................................................................................ 11
4.4 Condenser ................................................................................................................................ 11
4.5 Evaporator ............................................................................................................................... 11
4.6 Tank......................................................................................................................................... 11
4.7 Pump........................................................................................................................................ 11
4.8 Fans.......................................................................................................................................... 12
4.9 Casing ...................................................................................................................................... 12
4.10 Materials in contact with the liquid to be cooled .................................................................... 12
4.11 Minimum distances from walls in the installation ambient..................................................... 12
4.12 Electrical circuit....................................................................................................................... 12
I NSTALLATION ...............................................................................................................................................13
5.1 Inspection ................................................................................................................................ 13
5.2 Positioning............................................................................................................................... 13
5.3 Antifreeze protection ............................................................................................................... 13
5.3.1 Operating limits ....................................................................................................................................... 14
5.4 Hydraulic connections ............................................................................................................. 14
5.5 Expansion tank ........................................................................................................................ 15
5.6 Electrical connections.............................................................................................................. 16
S TART UP .......................................................................................................................................................19
E LECTRONIC B OARD ....................................................................................................................................21
7.1 Display..................................................................................................................................... 21
7.1.1 Display icons ........................................................................................................................................... 21
7.2 Function of buttons.................................................................................................................. 21
7.2.1 Function of combined buttons ................................................................................................................. 22
7.3 Symbols and leds on the display ............................................................................................. 22
7.4 Remote terminal ...................................................................................................................... 22
7.4.1 Function of buttons .................................................................................................................................. 22

2
The data inside this manual are not binding and they can be modified by the manufacturer without notice. All rights reserved.
NPC 015 TO 230
7.5 Displaying during an alarm......................................................................................................22
7.5.1 Alarm icons ..............................................................................................................................................23
7.6 How to silence the buzzer ........................................................................................................23
7.7 First start up..............................................................................................................................23
7.8 Programming by keyboard .......................................................................................................23
7.8.1 Access to “Pr1” parameters (User level) ................................................................................................23
7.8.2 How to modify a parameter’s value .........................................................................................................23
7.9 Values displayed ......................................................................................................................24
7.10 Unit switching on / off .............................................................................................................24
7.11 How to put the unit in stand-by................................................................................................24
7.12 Function menu ( * button) ......................................................................................................25
7.12.1 Access to Function menu ..........................................................................................................................25
7.12.2 Exit Function menu ..................................................................................................................................25
7.12.3 How to display the alarms “ALrM” .........................................................................................................25
7.12.4 How to reset an alarm “rSt” ....................................................................................................................25
7.12.5 How to display the alarm historic “ALoG” .............................................................................................25
7.12.6 How to reset the alarm history “ArSt” ....................................................................................................25
7.12.7 Displaying the operating hours of loads “C1Hr - C2Hr - PFHr” ..........................................................26
7.13 Other functions by keyboard ....................................................................................................26
7.13.1 How to display the Set Point ....................................................................................................................26
7.13.2 How to modify the Set Point .....................................................................................................................26
7.14 Compressors unloading function..............................................................................................26
7.15 Probe key..................................................................................................................................26
O THER COMPONENTS SETTING ....................................................................................................................27
8.1 Compressor integral protection (PI).........................................................................................27
8.2 Refrigerant high and low pressure switches.............................................................................27
8.3 Compressor operation ..............................................................................................................27
8.3.1 Compressor regulation graphic in Chiller mode .....................................................................................27
8.4 Fan speed regulation.................................................................................................................28
8.5 Level sensor..............................................................................................................................28
O PERATION AND MAINTENANCE ..................................................................................................................29
9.1 Operation..................................................................................................................................29
9.2 Maintenance .............................................................................................................................29
9.3 Unit access................................................................................................................................29
9.4 Emptying the process water circuit ..........................................................................................30
9.5 Maintenance schedule ..............................................................................................................30
T ROUBLE SHOOTING .....................................................................................................................................31
S
ETTING TABLES ...........................................................................................................................................35
11.1 Parameter setting......................................................................................................................35
11.1.1 Thermoregulation parameters .................................................................................................................35
11.1.2 Configuration parameters ........................................................................................................................35
11.1.3 Dymanic set point parameters (NOT ENABLED FUNCTION) ..............................................................36
11.1.4 Energy Saving parameters (NOT ENABLED FUNCTION) ....................................................................36
11.1.5 Compressor parameters ...........................................................................................................................36
11.1.6 Fan parameters ........................................................................................................................................36
11.1.7 Antifreeze support resistance parameters ................................................................................................36
11.1.8 Defrost parameters (NOT ENABLED FUNCTION) ................................................................................36
11.1.9 Alarm parameters .....................................................................................................................................36
11.1.10LASER parameters (NOT ENABLED FUNCTION) ................................................................................36
ALARMS ..........................................................................................................................................................37
12.1 Alarm codes and actions ..........................................................................................................37
12.2 Outlet blocking.........................................................................................................................40

3
The data inside this manual are not binding and they can be modified by the manufacturer without notice. All rights reserved.
NPC 015 TO 230
C HAPTER 1
G ENERAL I NFORMATION
The machines described in this manual are called “WATER REFRIGERATORS”.
This manual is written for those responsible for the installation, use and maintenance of the unit.
The components used are of high quality and all the projecting process, from the production to the unit checking, has been manufactured in
conformity with ISO 9001 norms.
In most applications, the liquid of the user circuit is water and the term “WATER” will be used even if the liquid of the user circuit is different
from water (e.g. a mixture of water and glycol).
Here below the term “PRESSURE” will be used to indicate the gauge pressure.
The electrical panel has been designed following UL508A standard rule (Industrial Control Panels), homologated with UL file number E249753
and marked. .
The following symbols are shown on the stickers on the unit as well as on the overall dimension drawing and refrigeration circuits in this manual.
Their meaning is the following:
The following warning symbols are shown on the stickers on the unit. If requested, the same stickers are available also in French. Their meaning
is the following:
Process water inlet
Process water outlet
Indications for lifting the unit
Water drainage point from the machine
Electric shock risk
Risk of burns from contact with high-temperature surfaces
Direction of the refrigerant fluid and water circuit
Direction of pump rotation (if installed)
Water filling point
Air vent
Hole for inserting bars for lifting the machine
Table 1 S
YMBOLS
WARNING SYMBOL DESCRIPTION
To maintain overcurrent, short-circuit, and ground-fault protection, the
manufacturer’s instructions for selection of overload and short circuit
protection must be followed to reduce the risk of fire or electric shock.
In an overload or a fault current interruption occurs, circuits must be checked
to determine the cause of the interruption.
If a fault condition exists, the current-carrying components should be
examined and replaced if damaged, and the integral current sensors must be
replaced to reduce the risk of fire or electric shock.
Table 2 W
ARNING SYMBOLS

4
The data inside this manual are not binding and they can be modified by the manufacturer without notice. All rights reserved.
NPC 015 TO 230
1.1 How to interpret the model
ATTENTION
This manual provides the user, installer and maintenance technician with all the technical information required for installation, operation
and carrying out routine maintenance operations to ensure long life.
If spare parts are required, this must be original.
Requests for SPARE PARTS and for any INFORMATION concerning the unit must be sent to the distributor or to the nearest service centre,
providing the MODEL and MACHINE NUMBER shown on the machine data plate and on the first page of this manual.
Hazardous voltage.
All doors must be closed before energizing the panel.
Read and understand operator’s manual before using this machine.
Failure to follow operating instructions could result in death or serious injury.
Moving parts can crush and cut.
Do not operate with guard removed.
Follow lockout procedure before servicing.
Hazardous voltage.
Disconnect power before servicing or cleaning.
MODEL DESCRIPTION
refrigerant with 1 refrigeration circuit
power indicative of the refrigeration compressor in hp
C - CHILLER
P = PRECISION
N = nano-purification solutions
WARNING SYMBOL DESCRIPTION
Table 2 W
ARNING SYMBOLS
NPC XX 1

5
The data inside this manual are not binding and they can be modified by the manufacturer without notice. All rights reserved.
NPC 015 TO 230
C HAPTER 2
S AFETY
This machinery was designed to be safe in the use for which it was planned provided that it is installed, started up and maintained in accordance
with the instructions contained in this manual.
The manual must therefore be studied by all those who want to install, use or maintain the unit.
The machine contains electrical components which operate at the line voltage, and also moving parts.
It must therefore be isolated from the electricity supply network before being opened. Maintenance operations involving work inside the machine
must be performed by skilled and adequately qualified personnel equipped with suitable protection means (active and passive, e.g. work gloves)
ton ensure work in maximum safety.
Do not allow extraneous persons (such as children) where the machine is installed.
2.1 General
When handling or maintaining the unit and all auxiliary equipment, the personnel must operate with care observing all instructions concerning
health and safety at installation site.
ATTENTION
Most accidents which occur during the operation and maintenance of the machinery are a result of failure to observe basic safety rules or
precautions.
An accident can often be avoided by recognising a situation that is potentially hazardous.
The user should make sure that all personnel concerned with operation and maintenance of the unit and all auxiliary equipment have read and
understood all warnings, cautions, prohibitions and notes written in this manual as well as on the unit.
Improper operation or maintenance of the unit and auxiliary equipment could be dangerous and result in an accident causing injury or death.
We cannot anticipate every possible circumstance which might represent a potential hazard.
The warnings in this manual are therefore not all-inclusive.
If the user employs an operating procedure, an item of equipment or a method of working which is not specifically recommended, he must ensure
that the unit and auxiliary equipment will not be damaged or made unsafe and that there is no risk to persons or property.
Any improper use of the machine will relieve the manufacturer from any liability for possible personal injury or property damage.
Arbitrary modifications made to the unit will automatically invalidate all forms of guarantee provided by the manufacturer.
2.2 Liquids of the user circuit
The liquids of the user circuit must be compatible with the materials used.
These can be water or mixtures of water and glycol, for example.
Additives and glycol suppliers must guarantee compatibility with the materials. For further information refer to 4.10 “Materials in contact with
the liquid to be cooled” .
ATTENTION
If the liquids of the user circuit contains dangerous substances (e.g. ethylene glycol) is very important to collect any liquid which leaks
because it could cause damages to the ambient. Furthermore, when the refrigerator is no longer used, dangerous liquids must be disposed of
by firms specialised and authorised for treating them.
2.3 Lifting and carriage precautions
Avoid injury by using a hoist to lift heavy loads.
Check all chains, hooks, shackles and slings are in good condition and are of the correct capacity.
They must be tested and approved according to local safety regulations.
Cables, chains or ropes must never be applied directly to lifting eyes.
Always use an appropriate shackle or hook properly positioned.
Arrange lifting cables so that there are no sharp bends.
Use a spreader bar to avoid side loads on hooks, eyes and shackles.
When a load is on a hoist stay clear of the danger area beneath and around it.
Keep lifting acceleration and speed within safe limits and never leave a load hanging on a hoist for longer than is necessary. The weight values
shown in the following table were obtained with the unit empty, pump P3 and axial fans.
The manufacturer does not supply bars, belts and lifting hooks with the unit.
MODEL 015 020 0 01 2
Weight (kg) 127 132 200 220 331 386 405 416 553 650 740 757
Weight (lb) 280 291 440 485 729 850 892 917 1219 1433 1631 1668
Table 3 W
EIGHTS

6
The data inside this manual are not binding and they can be modified by the manufacturer without notice. All rights reserved.
NPC 015 TO 230
NOTE
Weight values are guideline, with the water circuit empty. The values may vary in relation to the configuration of the unit (pump type, supply
type, and ventilation type).
2.4 Installation precautions
The connections to be made are for the process water circuit. Use the electrical diagram accompanying this manual to for the connection to the
power grid.
2.5 Precautions during operation
Operation must be carried out by competent personnel under a qualified supervisor.
All the water piping must be painted or clearly marked in accordance with local safety regulations in the place of installation.
ATTENTION
Never remove or tamper with the safety devices, guards or insulation materials fitted to the unit or auxiliary equipment.
All electrical connections must comply with local codes.
The unit and auxiliary equipment must be earthen and protected by fuses against short-circuits and overloading.
When mains power is switched on, lethal voltages are present in the electrical circuits and extreme caution must be exercised whenever it is
necessary to carry out any work on the electrical system.
Do not open any electrical panels or cabinets or touch any electrical components or associated equipment while voltage is applied unless it is
necessary for measurements, tests or adjustments. Such work should be carried out only by a qualified electrician equipped with the proper tools
and wearing appropriate body protection against electrical hazards.
2.6 Maintenance and repair precautions
ATTENTION
When disposing of parts and waste material of any kind make sure that there is no pollution of any drain or natural water-course and that no
burning of waste takes place which could cause pollution of the air. Protect the environment by using only approved methods of disposal.
Keep a written record of all maintenance and repair work carried out on the unit and auxiliary equipment. The frequency and the nature of the
work required over a period can reveal adverse operating conditions which should be corrected.
ATTENTION
Use only refrigerant gas specified on the specification plate of the unit.
Make sure that all instructions concerning operation and maintenance are strictly followed and that the complete unit, with all accessories and
safety devices, is kept in good working order. The accuracy of pressure and temperature gauges must be regularly checked. They must be
renewed when acceptable tolerances are exceeded.
ATTENTION
Do not weld or carry out any operation which produces heat near a system which contains oil or flammable liquids. The systems which may
contain oil or flammable liquids must be completely drained and cleaned (with steam, for example), before carrying out these operations.
Model 015-130 Model 150-230

7
The data inside this manual are not binding and they can be modified by the manufacturer without notice. All rights reserved.
NPC 015 TO 230
The adjacent components must always be screened with non-flammable material and if the operation is to be carried out near any part of the
lubrication system, or close to a component which may contain oil, the system must first be thoroughly purged, preferably by steam cleaning.
Never use a light source with an open flame to inspect any part of the machine.
For every unit establish a suitable time schedule for cleaning operations.
ATTENTION
If replacement parts are needed use only original spares.
Avoid to damage the safety valves and other pressure relief devices.
All guards must be reinstated after carrying out repair or maintenance work.
ATTENTION
Check the direction of rotation of electric motors (the pump if installed) when starting up the unit initially and after any work on the
electrical connections or switch gear.
Do not use flammable liquid to clean any component during operation. If chlorinated hydrocarbon non-flammable fluids are used for cleaning,
safety precautions must be taken against any toxic vapours which may be released.
ATTENTION
Before removing any panels or dismantling any part of the unit, carry out the following operations:
- Isolate the unit from the main electrical power supply by disconnecting the cable from the electrical power source.
- Lock the isolator in the “OFF” position with a lock.
- Attach a warning label to the main isolator switch conveying: “WORK IN PROGRESS - DON NOT APPLY VOLTAGE”.
- Do not switch on electrical power or attempt to start the unit if a warning label is attached.
Coloured tracers can be used in service-maintenance operations.
Inspect all refrigerant circuit joints including connectors, flanges, and more generally all critical points (open joints) in order to prevent possible
leakage of refrigerant gas.
2.7 Refrigerant gases
R407C is used as refrigerant in these units. Never attempt to mix refrigerant gases. The manufacturer's instructions and local safety regulations
should always be observed when handling and storing high pressure gas cylinders.
2.7.1 Refrigerant safety schedule
R407C
Denomination: 23% Difluoromethane (R32);
25% Pentafluoroethane (R125);
52% R134a
INDICATION OF THE DANGERS
Major dangers: Asphyxia.
Specific dangers: Rapid evaporation can cause freezing.
FIRST AID MEASURES
General information: Do not give anything to unconscious persons.
Inhalation: Take the person outdoors. Use oxygen or artificial respiration if necessary. Do not
administer adrenaline or similar substances.
Contact with the eyes: Thoroughly wash with plenty of water for at least 15 minutes and call a doctor.
Contact with the skin: Wash immediately with plenty of water. Remove contaminated clothing immediately.
FIRE-FIGHTING MEASURES
Means of extinction: Any means.
Specific dangers: Pressure increase.
Specific methods: Cool the containers with water sprays.
MEASURES IN THE EVENT OF ACCIDENTAL LEAKAGE
Individual precautions: Evacuate personnel to safe areas. Provide adequate ventilation. Use means of personal
protection.
Environmental precautions: Evaporates.
Cleaning methods: Evaporates.
HANDLING AND STORAGE
Handling
technical measures/ precautions: Ensure sufficient air change and/or extraction in the work areas.
recommendations for safe use: Do not inhale vapours or aerosols.

8
The data inside this manual are not binding and they can be modified by the manufacturer without notice. All rights reserved.
NPC 015 TO 230
Storage Close properly and store in a cool, dry well-ventilated place. Store in its original
containers. Incompatible products: explosives, flammable materials, organic peroxide.
CONTROL OF EXPOSURE/INDIVIDUAL PROTECTION
Control parameters: AEL (8-h e 12-h TWA) = 1000 ml/m3 for each of the three components.
Respiratory protection: For rescue and maintenance work in tanks, use autonomous breathing apparatus. The
vapours are heavier than air and can cause suffocation, reducing the oxygen available for
breathing.
Protection of the eyes: Safety goggles.
Protection of the hands: Rubber gloves.
Hygiene measures: Do not smoke.
PHYSICAL AND CHEMICAL PROPERTIES
Colour: Colourless.
Odour: Similar to ether.
Boiling point: -43.9°C at atm. press.
Flammability point: Non flammable.
Relative density: 1.138 kg/l at 25°C.
Solubility in water: Negligible.
STABILITY AND REACTIVITY
Stability: No reactivity if used with the relative instructions.
Materials to avoid: Alkaline metal, earthy alkaline metals, granulated metals salts, Al, Zn, Be, etc. in powder.
Hazardous decomposition products: Halogen acids, traces of carbonyl halides.
TOXICOLOGICAL INFORMATION
Acute toxicity: (R32) LC50/inhalation/4 hours/lab. rats >760 ml/l
(R125) LC50/inhalation/4 hours/lab. rats >3480 mg/l
(R134a) ALC/inhalation/4 hours/lab. rats = 567 ml/l.
Local effects: Concentrations substantially above the TLV can cause narcotic effects. Inhalation of
products in decomposition can lead to respiratory difficulty (pulmonary oedema).
Long-term toxicity: Has not shown any cancerogenic, teratogenic or mutagenic effects in experiments on
animals.
ECOLOGICAL INFORMATION
Global warming potential HGWP (R11=1): R125: 0.84 - R134a: 0.28
Ozone depletion potential ODP (R11=1): 0
CONSIDERATIONS ON DISPOSAL
Usable with reconditioning.