Download
Share
Print this page
NANO Precision NPC 015 Service Manual
  1. Manuals
  2. Brands
  3. NANO Manuals
  4. Chiller
  5. Precision NPC 015
  6. Service manual

NANO Precision NPC 015 Service Manual

Hide thumbs

Advertisement

Quick Links

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

Advertisement

loading

Related Manuals for NANO Precision NPC 015

Summary of Contents for NANO Precision NPC 015

  • Page 1 NPC 015 - 230 60 Hz UL SERVICE MANUAL n-psi-C1-SM-01-01-US...
  • Page 3 NDEX ................................1 NDEX ..........................3 ENERAL NFORMATION How to interpret the model...................... 4 ................................5 AFETY General ............................ 5 Liquids of the user circuit......................5 Lifting and carriage precautions ....................5 Installation precautions......................6 Precautions during operation ....................6 Maintenance and repair precautions ..................6 Refrigerant gases ........................
  • Page 4 Displaying during an alarm ......................22 7.5.1 Alarm icons ..............................23 How to silence the buzzer ......................23 First start up..........................23 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 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 (...
  • Page 5 HAPTER ENERAL 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.
  • Page 6 C - CHILLER P = PRECISION N = nano-purification solutions 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.
  • Page 7 HAPTER 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.
  • Page 8 Model 150-230 Model 015-130 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 I n s t a l l a t i o n p r e c a u t i o n s The connections to be made are for the process water circuit.
  • Page 9 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.
  • Page 10 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.

  • Page 11: Technical Data

    HAPTER ECHNICAL DATA The main technical data are given on the machine data plate: MODEL and CODE They identify the size of the unit and the type of construction. MANUAL This is the code number of the manual. SERIAL NUMBER This is the construction number of the unit.
  • Page 12 Model number of fans AXIAL FANS 4050 3500 6900 6400 9200 16000 total air flow 17831 15410 30380 28178 40506 70445 (gpm) Table 5 C HARACTERISTICS OF STANDARD UNITS Model (litres) Tank capacity water volume (galUS) 3.0/18 3.7/18 3.9/18 4.4/18 4.9/27 5.5/27 water flow rate...
  • Page 13 HAPTER ESCRIPTION 4 . 1 C o m p o n e n t s The data relating to the materials refer to standard machines. In case of particular units special materials are used, so it is necessary to refer to the data on the offer.
  • Page 14 NOTE The pump must never run dry. 4 . 8 F a n s Axial fans The fans of axial type consist of a die-cast aluminium fan with sickle profile. The protection rating of the fans is IP54. The protection rating of the fans is IP44 for NPC 015 TO 020. All fans have “F”...

  • Page 15: Installation

    HAPTER NSTALLATION ATTENTION Before carrying out the installation or operating on this machine, ensure that all the personnel has read and understood the Chapter 2 “Safety“ in this manual. 5 . 1 I n s p e c t i o n Immediately after uncrating, inspect the unit.
  • Page 16 5 .3 . 1 O per a t in g l im it s The operating limits are decided at the time of sale. Refer to the contract data. Minimum Maximum ambient air temperature °C /°F -5 /23 43 /109.4(*) Standard version evaporator inlet water °C /°F...
  • Page 17 When filling the circuit with liquid check to ensure the absence of air bubbles and contaminants. If the pump runs noisily or emits anomalous noise it may be necessary to PLUG bleed the liquid circuit in order to prime the pump. The procedure is as follows: •...
  • Page 18 5 . 6 E l e c t r i c a l c o n n e c t i o n s The machine must be connected to the main power supply in accordance with the laws and regulations in force in the country of installation, after verifying the wiring diagram annexed to the unit.
  • Page 19 For mains power input: 1. Connect the machine (terminal in the electrical panel) to the earth system of the building; 2. Provide protection against direct contact of at least NEMA Type 1 upline from the power cable; 3. Fit a device protecting the power cable from overcurrent (short-circuit) (see indication in the electrical diagram) upline from the power cable.
  • Page 20 NPC 015 TO 230 The data inside this manual are not binding and they can be modified by the manufacturer without notice. All rights reserved.
  • Page 21 HAPTER TART UP ATTENTION Before starting up these units be sure that all personnel have read and understood the Chapter 2 “Safety”. 1. Check that the machine's on/off valves are open. 2. Check that the tank is completely full of water and properly vented . 3.
  • Page 22 NPC 015 TO 230 The data inside this manual are not binding and they can be modified by the manufacturer without notice. All rights reserved.
  • Page 23 HAPTER LECTRONIC OARD 7 . 1 D i s p l a y The display is divided in 3 zones. It displays the temperature of temperature regulation probe. NOTE The displaying depends on the setting of parameter CF36 (see chapter Values displayed”...
  • Page 24 7 .2 . 1 F u n c t io n o f c o mb in e d b u t t o n s BUTTONS FUNCTION To enter programming phase (pressed for 5 sec). To exit programming phase. If pressed for more than 5 seconds they allow to start a manual defrosting cycle (function not present).
  • Page 25 7 . 5. 1 Al ar m ic ons There are four icons for alarm signalling: General alarm High pressure alarm Low pressure alarm Flow meter alarm 7 . 6 H o w t o s i l e n c e t h e b u z z e r Automatic silencing: it happens when the cause of the alarm has been eliminated.
  • Page 26 NOTE The new value is stored also when the programming procedure is terminated for “time out”, without pressing button. ATTENTION You can modify the parameter of the CF (configuration parameters) family only when the unit is in stand by. 7 . 9 V a l u e s d i s p l a y e d The values visualized on the display change according to the configuration of parameters CF36 for the top part and CF42 for the bottom part.
  • Page 27 7 . 1 2 F u n c t i o n m e n u ( b u t t o n ) The access to Function Menu allows to: 1. Display and reset the alarms (see 7.12.3 “How to display the alarms “ALrM””). Reset the alarms (see “How to reset an alarm “rSt””).
  • Page 28 7 .1 2 .7 D i s p l ay i n g t h e o p e r at i n g h o u rs o f l o a d s “ C 1 Hr - C 2H r - PF H r ” 1.

  • Page 29: Other Components Setting

    HAPTER THER COMPONENTS SETTING 8 . 1 C o m p r e s s o r i n t e g r a l p r o t e c t i o n ( P I ) For each compressor, this protection consists of three or six thermistor probes, each inserted in the winding of a motor phase; they are connected in series and, depending on the model, the terminals can be external.
  • Page 30 8 . 4 F a n s p e e d r e g u l a t i o n The fan speed regulation can be carried out by means of a pressure switch (FP). 1. Fan pressure switch (FP) In these units a pressure switch detects the refrigerant compressor outlet pressure and controls the fan operation powering them on or off.

  • Page 31: Operation And Maintenance

    HAPTER PERATION AND MAINTENANCE 9 . 1 O p e r a t i o n The machine operates in completely automatic mode. There is not necessary to turn it off when there is no thermal load as it turns off automatically when the preset water outlet temperature has been reached.
  • Page 32 9 . 4 E m p t y i n g t h e p r o c e s s w a t e r c i r c u i t Use the cock installed on the unit lower side if the storage tank need to be emptied for maintenance purposes (in models fitted with a hydraulic unit).

  • Page 33: Troubleshooting

    HAPTER ROUBLE SHOOTING PROBLEM CAUSE SYMPTOM REMEDY A1.1 Restore the thermal load to within the preset limits. Tank water outlet Thermal load too high. Temperature BTWOT temperature BTWOT greater than expected higher than the expected value. value. A2.1 In the event of installation in a closed place, if it is possible, Ambient temperature too See A1.1...
  • Page 34 PROBLEM CAUSE SYMPTOM REMEDY D1.1 Repair or replace the fan. Verify the eventual heat High pressure switch The fan doesn’t work. • Refrigerant compressor protection of the fan/s. tripped (HP) stops; Follow the alarm reset • the indication A01 appears procedure to star up the unit Alarm displayed: on the display alternated to...
  • Page 35 PROBLEM CAUSE SYMPTOM REMEDY G1.1 Check the causes of the fuse tripping. Digital display and all LEDs Auxiliary circuit fuse Measuring with a tester Replace the fuse. off although P1 main tripping. the voltage at the switch On (“I”). transformer secondary winding connector, there will be not tension survey.
  • Page 36 NPC 015 TO 230 The data inside this manual are not binding and they can be modified by the manufacturer without notice. All rights reserved.

  • Page 37: Setting Tables

    HAPTER ETTING TABLES The following tables show the list of all masks which contain adjustable parameters. On Factory setting column are indicated the setting values set during the unit testing; they are referred only to the unit which has the same serial number you can find on the label of the first page of this manual.
  • Page 38 Parameter Level Description Min. Max. Resolution Factory setting CF44 Default bottom displaying of remote terminal: • 0 = BEWOT. • 1 = BTWOT. • 2 = none. • 3 = BAT1. • 4 = unit setpoint • 5 = unit status (**) •...
  • Page 39 HAPTER ALARMS 1 2 . 1 A l a r m c o d e s a n d a c t i o n s 7.12.3 “How to display the alarms “ALrM”” 7.12.4 “How to reset an alarm “rSt”” See chapter CODE MEANING...
  • Page 40 CODE MEANING CAUSE ACTION RESET Antifreeze alarm Digital input “open collector” outlet / alarm relay is Automatic enabled if BTWOT activated It becomes manual after “tripping per hour” < “set value” and The buzzer is activated Manual actives for the “time The icon for general alarm flashes Disabling: set”...
  • Page 41 CODE MEANING CAUSE ACTION RESET High water Only units operating “open collector” outlet / alarm relay are Automatic temperature alarm if the temperature activated at evaporator outlet measured by PB2 is The buzzer is activated higher than AL24 The alarm code is displayed Clock alarm Clock to be “open collector”...
  • Page 42 1 2 . 2 O u t l e t b l o c k i n g Antifreeze Alarm code Alarm Description Comp. 1 Comp. 2 Pump Resistances BEWOT probe BTWOT probe BCP1 probe BAT1 probe High pressure switch Fan thermal protection Low pressure switch Ambient air low temperature...

This manual is also suitable for:

Precision npc 020Precision npc 030Precision npc 040Precision npc 060Precision npc 090Precision npc 120 ... Show all