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Lauda ULTRACOOL UC 14, Руководство пользователя

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Lauda ULTRACOOL UC 14 Скачать руководство пользователя страница 23

 

23 

FAULT 

CAUSE 

SOLUTION 

RESTART PROCEDURE 

or 

Pump overload 

It stops the whole unit 
 
 
 
 
 
 
or 

Phase sequence 

It stops the whole unit

 

Circuit breaker Q2 
has tripped 
 
 
 
 
 
 
Wrong phase 
sequence at the main 
power supply 

Check if the electrical 
connections are correct. 
Check voltages, intensities 
and variations. Check water 
pressure. Check water 
quality. Check if the pump is 
blocked 
 
Switch OFF the main power 
switch, disconnect the chiller 
from the power supply and 
exchange two phases in the 
main power supply 

Disconnect the chiller by turning 
Off the main power switch (see 
point 4.1). Open the electrical 
box (accessible through the right 
panel of the chiller) and reset 
the Q2 circuit breaker. Turn the 
Main power switch back On 
 
Once the phase sequence is 
correct the chiller will work 
normally automatically 

Offline EBM 1 

It stops the compressor 

Q3 circuit breaker 
tripped 
 
 
 
Motor fan faulty 

Check if the electrical 
connections are correct. 
Check supply voltage and 
power surges 
 

Contact authorized technical 
service

 

Disconnect the chiller by turning 
Off the main power switch (see 
point 4.1). Open the electrical 
box (accessible through the right 
panel of the chiller) and reset 
the Q3 circuit breaker. Turn the 
Main power switch back On 

Chilled water high 
temperature 

The water tank 
temperature has been 
more than 5ºC (9ºF) 
above the 
programmed setpoint 
for some minutes 

Check the cold water set 
point is within the limits 
indicated on point 3.1, the 
ethylene glycol proportion is 
correct and the antifreeze 
protection is set accordingly. 
Stop the application so that 
it does not generate heat and 
let the chiller without load 
for some minutes. If the 
problem persists 

contact 

authorized technical service

 

It's a warning only; the chiller is 
still working normally 

High water temperature 
Safety Alarm 

It stops the whole unit 

The water inlet 
temperature or water 
tank temperature has 
exceeded 45ºC 
(113ºF) 

Wait until the temperature 
decreases or change the 
water in the circuit and 
restart the unit 

Once all water temperatures are 
below 45ºC, disconnect the 
chiller by turning Off the main 
power switch (see point 4.1). 
Turn it back On after at least 30 
seconds have passed 

 

 

Содержание ULTRACOOL UC 14

Страница 1: ...ULTRACOOL UC 8 UC 14 UC 24 UC 50 UC 65 DMI 0217 07 27 02 2020 ...

Страница 2: ...ersonnel Disposal of Waste Equipment by Users in Private Household in the European Union This symbol on the product or on its packaging indicates that this product must not be disposed of with your other household waste Instead it is your responsibility to dispose of your waste equipment by handing it over to a designated collection point for the recycling of waste electrical and electronic equipm...

Страница 3: ...tup 10 3 1 Operating Conditions 10 3 2 Chiller startup 11 4 Chiller Controls 14 4 1 Control and monitoring elements 14 4 2 UC Controller 15 4 3 Operation 15 4 4 Preheating Function 16 4 5 Ethernet Configuration 17 5 Maintenance 19 5 1 Basic Maintenance 19 6 Troubleshooting 20 6 1 Saving a log file in case of alarm 20 6 2 Alarms and Warnings list 21 7 Technical Features 25 7 1 Technical Features 25...

Страница 4: ...4 9 2 MSDS Refrifluid B 33 EC Declaration of Conformity 34 Attention Points of special interest to keep in mind ...

Страница 5: ...tion in order to undertake additional safety measures if necessary 1 2 SAFETY REGULATIONS The operator has to observe the national working operating and safety regulations Also existing internal factory regulations must be met Maintenance and repair work must only be carried out by specially trained personnel and if necessary under supervision of a person qualified for this work Protective or safe...

Страница 6: ... 1 It is necessary to add ethylene glycol to the water of the circuit as indicated in point 3 1 The chiller must be installed on a solid level surface that is capable of supporting a minimum of 300kg 660 lb for UC 8 to 24 models and 650kg 1430 lb for UC 50 and 65 models The floor must not have any slope If the chiller has wheels make sure to activate their brakes once the unit is in place to preve...

Страница 7: ...N LABELS ON THE ULTRACOOL UNIT You can find the following labels on the Ultracool unit 2 5 WATER CONNECTION Leave at least 1 5 meters 5 feet of flexible pipe right after the chiller s inlet and outlet connection This will allow moving the chiller for a better maintenance access without dismantling the water pipes The chiller should be located as close as possible to the application Pressure drop i...

Страница 8: ...ng voltage 400VAC 10 50Hz 3 Ph or 460VAC 10 60Hz 3 Ph In terms of Electromagnetic emissions and immunity this unit is intended for installation in an industrial environment Make sure that the supply voltage does not exceed a maximum variation of 10 referring to nominal This unit integrates a frequency inverter with a leakage current that exceeds 3 5 mA On installations where a Residual Current Dev...

Страница 9: ...mote On Off signal is transmitted to these terminals by a dry contact in the application open contact chiller Off closed contact chiller On Note The chiller will not turn On unless these terminals are bridged Once the commissioning operation is complete if the remote On Off function described above is not used connect the supplied wire bridge between terminals 23 and 24 to be able to turn the chil...

Страница 10: ... accessory should be installed This typically happens with applications that use a water flow significantly lower than the chiller s nominal flow The external by pass option allows the chiller to work with close to its nominal flow even if the application is only using part of that flow Please note that a flow lower than the chiller s nominal flow can affect negatively the outlet temperature stabi...

Страница 11: ...Less than 41ºF until 32ºF 30 5ºF 30 5ºF 30 5ºF Less than 32ºF until 23ºF 30 5ºF 30 5ºF 30 5ºF Less than 23ºF until 14ºF 40 4ºF 40 4ºF 40 4ºF 4 The ethylene glycol percentage is given as measured as weight of the total mixture In case of any modification in the quantity of water in the installation the concentration of ethylene glycol should be checked If more volume is required it is necessary to ...

Страница 12: ...ed Open the water inlet valve completely and close the outlet water valve completely as shown on the following pictures Make sure that the external fuses are installed see point 2 6 Switch OFF the main power switch during any electrical intervention Connect the Remote ON OFF control in terminals 23 and 24 If you do not use a remote control connect the wire bridge supplied inside the electrical box...

Страница 13: ...unit stops by low water level alarm turn the main power switch OFF open the lateral panel and check the level in the tank If the level is below the maximum refill the water tank until the maximum level Repeat this operation until water level in the tank remains constant When refilling the tank respect the ethylene glycol concentration as per point 3 1 Select the desired temperature of the cold wat...

Страница 14: ...steadily when an Alarm is active either the refrigerant circuit or the complete unit is stopped See point 6 for troubleshooting 3 Main power switch Located on the right side of the chiller It connects and disconnects the Ultracool unit from the power supply 4 Controller display It shows all information on the operation of the chiller and allows controlling it It can be accessed either from the ext...

Страница 15: ...n Off shortly it is being delayed by an internal minimum running time timer in the chiller s software From the main screen it s also possible to access the On Off screen the setpoint screens and the information screens loop Use the Up Down buttons to select the desired subscreen menu and press Enter to access it Pressing Esc from any screen goes back to this main screen 4 3 OPERATION Remote On Off...

Страница 16: ... speed to match the cooling capacity required by the application to maintain a high water outlet temperature stability Please note that the compressor has a minimum speed ranging from 15 to 25 depending on the chiller model and specific working conditions When the heat load from the application is lower than the minimum capacity of the compressor the compressor will stop automatically The compress...

Страница 17: ... PH blinking besides it To disable the preheating system leave it set at the minimum possible value 15ºC 5ºF The fastest way to stop the pump in case of emergency for example if there s a major water leak is to turn Off the Main Power Switch 4 5 ETHERNET CONFIGURATION The chiller can be remotely monitored and operated through any PC connected to the same network where the chiller is connected via ...

Страница 18: ...rk Once done select the Update config field change it to Yes with the Up button and confirm with Enter This will save all the new values Note If no button is pressed during 30 seconds the controller discards any changes that have not been saved and goes back to the Main screen Once done it will be possible to access the webserver of the chiller from a web browser on any PC connected to the same ne...

Страница 19: ... Monthly With the Unit disconnected Main power switch Off clean the condenser removing dust dirt with a soft brush and or vacuum clean the surface from the outside Do not use any detergents to clean the condenser Clean the housing internally and externally eliminating the dust present especially on the water pump rack Yearly Change the filter element and refill the circuit with water of the requir...

Страница 20: ... Alarm and the Enter buttons for a few seconds until the display changes to the following screen If accessing through the webserver it s also possible to reach this menu by first clicking on the icon and then clicking the Alarm and Enter icons 2 Use the Down button to select LOGGER and press Enter to access the Logger menu 3 Press Enter to access the Export Logs screen 4 In this screen press the E...

Страница 21: ... service Disconnect the chiller by turning Off the main power switch see point 4 1 Turn it back On after at least 30 seconds have passed Alarm freeze evaporating temp Alarm due to low evaporating temperature The evaporation temperature is too low and there is risk of freezing It stops the compressor if it happens 3 times in a short period Water circuit blocked Possible freezing due to low ambient ...

Страница 22: ...e right panel of the chiller and reset the Q1 circuit breaker Turn the Main power switch back On Tank level alarm It stops the whole unit Level switch did not switch to the full position Water leak in the internal circuit of the UC Water leak in the external water circuit Water leak in the water pump Check that the level switch works properly and that the tank is full enough After disconnecting th...

Страница 23: ...horized technical service Disconnect the chiller by turning Off the main power switch see point 4 1 Open the electrical box accessible through the right panel of the chiller and reset the Q3 circuit breaker Turn the Main power switch back On Chilled water high temperature The water tank temperature has been more than 5ºC 9ºF above the programmed setpoint for some minutes Check the cold water set p...

Страница 24: ... all The chiller keeps running and still responds to commands received through its digital inputs and to remote control through Ethernet External controller display cable damaged or loose connections External controller display damaged Check that the cable connections are tight at both ends and examine the total length of the cable for any damages If the cable is damaged contact authorized technic...

Страница 25: ...5 0 75 1 5 2 3 max l min 130 130 130 230 250 min 13 13 13 23 25 max bar 4 2 4 2 4 2 4 6 5 0 min 1 1 1 1 5 2 7 Pump 60 Hz kW 1 5 1 5 1 5 2 2 4 0 max l min 167 167 167 300 300 min 17 17 17 30 30 max bar 6 6 6 6 6 6 6 8 7 2 min 2 1 2 1 2 1 2 9 3 8 Volume water tank l 35 35 35 210 210 Sound Pressure Level 1 dB A 61 0 64 7 64 7 68 7 69 5 Power 50 Hz kW 3 4 5 1 8 0 14 8 20 4 60 Hz kW 4 2 5 8 8 8 15 5 22...

Страница 26: ... Parameters at rating point B Rated refrigeration capacity PB 7 75 kW Rated power input DB 2 01 kW Rated energy efficiency ratio EERDC B 3 84 Parameters at rating point C Rated refrigeration capacity PC 7 19 kW Rated power input DC 1 18 kW Rated energy efficiency ratio EERDC C 6 08 Parameters at rating point D Rated refrigeration capacity PD 6 64 kW Rated power input DD 0 75 kW Rated energy effici...

Страница 27: ...ting point B Rated refrigeration capacity PB 12 51 kW Rated power input DB 3 35 kW Rated energy efficiency ratio EERDC B 3 72 Parameters at rating point C Rated refrigeration capacity PC 11 61 kW Rated power input DC 2 09 kW Rated energy efficiency ratio EERDC C 5 53 Parameters at rating point D Rated refrigeration capacity PD 10 72 kW Rated power input DD 1 09 kW Rated energy efficiency ratio EER...

Страница 28: ...ting point B Rated refrigeration capacity PB 18 95 kW Rated power input DB 5 46 kW Rated energy efficiency ratio EERDC B 3 44 Parameters at rating point C Rated refrigeration capacity PC 17 59 kW Rated power input DC 3 49 kW Rated energy efficiency ratio EERDC C 5 00 Parameters at rating point D Rated refrigeration capacity PD 16 24 kW Rated power input DD 2 00 kW Rated energy efficiency ratio EER...

Страница 29: ...ting point B Rated refrigeration capacity PB 39 48 kW Rated power input DB 10 28 kW Rated energy efficiency ratio EERDC B 3 82 Parameters at rating point C Rated refrigeration capacity PC 36 66 kW Rated power input DC 7 23 kW Rated energy efficiency ratio EERDC C 5 05 Parameters at rating point D Rated refrigeration capacity PD 33 84 kW Rated power input DD 5 06 kW Rated energy efficiency ratio EE...

Страница 30: ...ting point B Rated refrigeration capacity PB 51 43 kW Rated power input DB 13 91 kW Rated energy efficiency ratio EERDC B 3 67 Parameters at rating point C Rated refrigeration capacity PC 47 75 kW Rated power input DC 9 77 kW Rated energy efficiency ratio EERDC C 4 85 Parameters at rating point D Rated refrigeration capacity PD 44 08 kW Rated power input DD 6 86 kW Rated energy efficiency ratio EE...

Страница 31: ...31 8 LOG BOOK 8 1 LOG BOOK Date Remarks Signature ...

Страница 32: ...pm Total iron ions Fe2 and Fe3 0 2 ppm Chloride Cl 300 ppm H2S 0 05 ppm Solid particles 150 µm Ethylene glycol Max 40 The Total Hardness is specified in ppm mg L of Ca2CO3 Please note that ultra pure waters like deionized water can also be harmful for some of the materials of the Ultracool units as they have a conductivity below 50 µS cm Do not use automotive antifreeze Use lab grade ethylene glyc...

Страница 33: ...t alloys It includes protectors for refrigeration systems and industrial processes INSTRUCTIONS FOR USE Refrifluid B has to be used diluted into a proportion of 2 litres of Refrifluid B in 100 litres of demineralised water If the machine has to work at temperatures below 0ºC 32ºF it is necessary to use ethylene glycol as antifreeze agent With a 20 of ethylene glycol it has a large antifreeze capac...

Страница 34: ... machinery 2006 42 EC EMC Electromagnetic Compatibility 2014 30 EU Low voltage Directive 2014 35 EU Ecodesign Directive 2009 125 EC The safety objectives of the Machinery Directive in regard to electrical safety were adhered to in accordance with Annex I Paragraph 1 5 1 by its conformity with the Low Voltage Directive 2014 35 EU Directive 2011 65 EU 2015 863 EU Defined by restriction of the use of...

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