KKT chillers vBoxX 10 Instruction Manual Download

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83000602.Ke

2.16.

Materials used in the water circuit

The basic fitout has the material composition shown in Table 5:

Table 5: Materials used in the basic version

Component

Material

Unit connections

V2A 1.4305

Evaporator

V2A 1.4301 and copper (99.9%)

Tank
Tank connection sockets

V2A 1.4301
V4A 1.4305

Pump
Mechanical seal

V2A 1.4301
EPDM

Yellow sealing plugs

Polyamide PA 6

Black sealing plugs

Polyoxymethylene (POM)

Fill and drain tap

Nickel-plated brass

Bends, tees, sockets

Red brass CC499K, brass

Temperature sensor

V2A 1.4401 – AISI316

Pressure sensor

V2A 1.4301

Overflow valve (optional)

Red brass

Tank heater (optional)

Nickel-chrome-iron alloy - Alloy 825

Water circuit

John Guest piping made of polybutylene,
Hose made of synthetic rubber

Pushfit fitting

Acetal copolymer, nitrile (NBR), V2A

If the units are fitted with the Water circuit made free from non-ferrous metals option the material
composition is as shown in Table 6:

Table 6: Materials used in the non-ferrous metal-free version

Component

Material

Unit connections

V2A 1.4305

Evaporator

V2A 1.4301

Tank
Tank connection sockets

V2A 1.4301
V4A 1.4305

Pump
Mechanical seal

V2A 1.4301
EPDM

Yellow sealing plugs

Polyamide PA 6

Black sealing plugs

Polyoxymethylene (POM)

Fill and drain tap

V2A 1.4301

Bends, tees, sockets

V2A 1.4301

Temperature sensor

V2A 1.4401 – AISI316

Pressure sensor

V2A 1.4301

Overflow valve (optional)

V2A 1.4301 / Plastic

Tank heater (optional)

Nickel-chrome-iron alloy - Alloy 825

Water circuit

John Guest piping made of polybutylene (BGI)
Hose made of synthetic rubber (BGII)

Pushfit fitting

Acetal copolymer, nitrile (NBR), V2A

Summary of Contents for vBoxX 10

Page 1: ...Vario Line vBoxX 6 vBoxX 8 vBoxX 10 vBoxX 12 vBoxX 15 vBoxX 18 vBoxX 24 vBoxX 28 Instruction Manual ...

Page 2: ...rs com W www kkt chillers com Service ait deutschland GmbH Industriestraße 3 95359 Kasendorf Germany T 49 9228 9977 7190 F 49 9228 9977 7474 E service kkt chillers com W www kkt chillers com Service USA KKT chillers Inc 1280 Landmeier Road Elk Grove Village IL 60007 T 1 847 734 1600 F 1 847 734 1601 TF 1 866 517 6867 E support kkt chillersusa com W www kkt chillers com ...

Page 3: ...ibed you ensure that the machine s reliability and safety are maintained In addition you keep the operating costs low and at the same time lengthen the life of the components We recommend that you only use original KKT chillers spare parts to ensure that the chiller s efficiency is not impaired In this way you ensure the reliability and quality of the machine WARNING A black exclamation mark on a ...

Page 4: ...d in the water circuit 17 2 17 Water quality 18 2 18 Allowable liquids 19 3 Options and accessories 20 3 1 Version without tank with pump 20 3 2 Version without tank without pump 20 3 3 Version with water cooled condenser 20 3 4 Control cabinet heating 21 3 5 Insulation of the cold pipes and pump s 21 3 6 Tank heating with thermostatic pump start 22 3 7 Overflow valve for standby operation 22 3 8 ...

Page 5: ...ackaging accessory 27 4 Safety 27 4 1 General Information 27 4 2 Hazard Warnings 27 4 3 Residual energy 29 4 4 Safety devices and safeguards 30 4 4 1 High pressure limiter 30 4 4 2 High pressure monitoring 30 4 4 3 Low pressure monitoring 31 4 4 4 Flow monitoring 31 4 4 5 Oil temperature monitoring 31 4 4 6 Personal protective equipment for operating the machine 31 4 5 Personal protective equipmen...

Page 6: ... 2 11 Vibration isolation 43 6 2 12 Installation 44 6 2 13 Hydraulic installation 44 6 2 14 Frost protection measures 45 6 2 15 Flushing the cold water circuit 45 6 2 16 Filling 45 6 2 17 Venting 46 6 2 18 Electrical installation 47 7 Initial startup 49 7 1 Installation Checklist 49 8 Operation 50 8 1 Switching on 50 8 2 Selecting the operating mode 50 8 3 External release 50 8 4 Control 50 8 5 Co...

Page 7: ... Complete cleaning of the cold water circuit 58 10 Service 59 10 1 Servicing maintenance 59 10 2 Fault clearance 59 10 3 Spare parts 60 11 Withdrawal from service 61 11 1 Draining 61 12 Recycling 62 13 Products solutions and services 62 14 Lists 63 14 1 List of figures 63 14 2 List of tables 64 I Overview of the menu levels 65 II Troubleshooting 67 III Maintenance intervals in accordance with the ...

Page 8: ... the conditions specified by the manufacturer with regard to operation servicing and maintenance according to this instruction manual The user owner of the chiller not the manufacturer is responsible and liable for all personal injuries and property damage caused by any use that is not intended misuse Table 2 shows the general safety instructions of the chiller These are attached to the outside of...

Page 9: ...minal dt 5K m h 1 1 1 4 1 8 2 1 2 6 3 1 4 2 4 8 Free pump pressure basic fitout bar 3 Water connection nominal diameter RP 1 1 Air flow rate max m h 4 400 4 400 4 400 4 400 8 200 8 200 8 200 8 200 Sound pressure level at distance 5m dBA 54 54 54 54 59 59 59 59 Operating voltage basic fitout V Ph Hz 400 3 50 or 480 V 3 Ph 60 Hz or 400 V 3 Ph 60 Hz Protection class IP44 Height mm 1385 1500 Width mm ...

Page 10: ...00602 Ke 1 2 Elements 1 Operating side a Safety instructions 2 Cover b Water connections 3 Service side tank c Nameplate 4 Service side compressor d Display 5 Condenser safety grille e Main switch f Tank filling ...

Page 11: ...ation Application The heat source connected hydraulically with the chiller Process circuit Application and piping to the chiller Cold water circuit Process circuit and chiller in hydraulic piping Cold water Liquid medium in the cold water circuit Cooling air Ambient air drawn in by the machine which absorbs the heat Net weight Ready to use machine without cold water Gross weight Ready to use machi...

Page 12: ...itch one or several pump s and a fan are also installed for control and operation of the chiller 2 1 Compressor The compressor generates the pressure difference in the refrigerant circuit between the heat sink and heat source necessary for evaporation and condensing Vaporous refrigerant from the evaporator is drawn in and is compressed to condensing pressure in the compressor The compressors used ...

Page 13: ...condenser is described in Chapter 9 Cleaning If you operate your chiller in an environment contaminated with dust or oil vapour use the optionally available air filter mat see Chapter 3 24 Air filter mat If a cooling water system is available and the hot waste air of the chiller is to be avoided the chiller can also be designed with a water cooled condenser see Chapter 3 3 Version with water coole...

Page 14: ...essure continuously in various places in the refrigerant and cold water circuit The values are used to control the system and for visualisation at the controller display 2 9 Temperature sensors The temperature sensors used are equipped with a platinum measuring cell The sensors record the temperature continuously in various places in the refrigerant and cold water circuit The values are used for t...

Page 15: ...red against accidental touch by means of protective grilles on the discharge side The fan s speed is variable and is controlled by the main circuit board The speed of the fan is essentially determined by the condensation pressure 2 15 Cold water circuit The cold water is drawn out of the internal tank of the chiller by the internal pump and is pumped through the process circuit The units can also ...

Page 16: ...16 82 83000602 Ke ...

Page 17: ...of polybutylene Hose made of synthetic rubber Pushfit fitting Acetal copolymer nitrile NBR V2A If the units are fitted with the Water circuit made free from non ferrous metals option the material composition is as shown in Table 6 Table 6 Materials used in the non ferrous metal free version Component Material Unit connections V2A 1 4305 Evaporator V2A 1 4301 Tank Tank connection sockets V2A 1 4301...

Page 18: ...Glycol fraction AFN by vol 20 40 20 40 Oil fraction by vol 0 0 Chloride Cl mg l 50 50 Sulphate mg l 50 50 Nitrate mg l 100 100 Copper mg l 0 1 0 1 Iron mg l 0 2 0 2 Free carbon dioxide mg l 20 20 Manganese mg l 0 1 0 1 Ammonia mg l 2 2 Free chloride mg l 0 5 0 5 Sulphide mg l 0 03 0 03 The specified limit values must always be complied with in order to avoid blockaging of the plate heat exchanger ...

Page 19: ...tifreezes AFN and AFL These values must be kept to as accurately as possible in order to maintain your machine s efficiency and prevent damage to components WARNING Do not use mixtures of different anti freezes This can cause unwanted chemical reactions and silting up Table 8 AFN and AFL or equivalent mix ratios Setting Frost free up to Mix ratio AFN Mix ratio AFL Glycol 20 25 10 C 20 25 25 30 Gly...

Page 20: ...r Additional pressure losses between the tank provided on site and the integrated pump are to be avoided dpmax 0 3bar 3 2 Version without tank without pump The Vario Line units are optionally available as continuous flow coolers The units are delivered without an internal tank in the unit and without a pump The temperature sensor is then located in the cooler s return line The cold water is then c...

Page 21: ...binet heating The control cabinet heating is controlled thermostatically and at lower ambient temperatures prevents moisture from the drawn in ambient air from condensing on and damaging the electrical and electronic components of the control cabinet In order for the control cabinet heating to be active the chiller must not be disconnected from the power supply see Chapter 8 2 Selecting the operat...

Page 22: ...ease is deactivated Chapter 8 3 External release the pump remains active Figure 4 C6856 thermostatic pump start with overflow valve installation recommendation 3 7 Overflow valve for standby operation The overflow valve option should be installed if there is a possibility of the application severely reducing or completely preventing flow of the cold water while the machine is running The internal ...

Page 23: ...re A second pump supplies the process circuit with cold water 3 11 Second load pump The standard Vario Line units are designed with a 3 bar pump which is designed to the nominal flow rate of the respective unit If a second load with the same liquid and same liquid temperature but different liquid quantity or different flow pressure is to be supplied the unit can also be optionally supplied with a ...

Page 24: ...ntrol switch triggers if the flow drops and falls below the switching value The corresponding signal can be tapped floating at the terminal in the control cabinet 3 16 Water circuit made free from non ferrous metals If you machine is made free from non ferrous metals all parts of the chiller s cold water circuit touched by the media are free from non ferrous metals Several components such as the e...

Page 25: ...er mat accessory If the chiller is operated in an environment contaminated with dust or oil vapour the condenser should be protected with the air filter mat The filter is fixed in place using the Velcro tapes attached in the condenser safety grille The filter is removed for cleaning and is washed out with water or a mild lye alkaline solution Highly soiled filters must be replaced by a new filter ...

Page 26: ...le for this Modbus Profibus CANopen Profinet Devicenet EtherNet EtherCAT ControlNet CC Link 3 30 Remote control panel accessory If the chiller is to be operated from another control station instead of directly at the unit your unit can be supplied equipped with a so called remote control panel In this case the same display as the one installed in the chiller is supplied in a separate miniature hou...

Page 27: ...ether with a special desiccant The components used to unpack the units can be dismantled using a Phillips screwdriver Please note the altered transport dimensions 4 Safety The chiller is designed to be safe for its intended use Provided the instructions described in this instruction manual are followed with regard to transport installation startup and servicing maintenance The machine conforms to ...

Page 28: ...n wait for at least 2 minutes before opening the machine Warning Electric shock If the machine is only switched off at its main switch dangerous electrical voltage is still applied at several terminals in the control cabinet Wear safety footwear Wear protective gloves Wear eye protection Wear protective clothing Warning Hot surface Warning Cold surface WARNING Contains pressurised gas ...

Page 29: ... afterwards WARNING The pipes and components of the refrigerant and cooling water circuit are pressurised WARNING Do not undo any parts of the system Risk of injury on contact WARNING Only use the liquids specified 4 3 Residual energy Even if all the hazard warnings in 4 2 are taken into account the following residual energy can still cause a hazard Rotational energy of the slowing down fan o Desp...

Page 30: ... limiter The high pressure limiter PZH is a pressure switch with manual resetting The PZH limits the condensing pressure and switches off the compressor via the load contactor on reaching the maximum allowable system operating pressure It is part of the safety chain The PZH is installed on the refrigerant collector of the vBoxX type units see Figure 7 Position of the high pressure limiter PZH If t...

Page 31: ...ow ambient temperatures all Vario Line units are equipped with so called oil temperature monitoring To this end the hot gas temperature is monitored If the hot gas temperature is below the limit value of 6 C the oil is heated by the frequency converter until the limit value is reached again This function is only ensured if the main switch is switched on 4 4 6 Personal protective equipment for oper...

Page 32: ...tance of five meters without reflection Its maximum value is given in the technical specifications This only occurs at the highest fan speed at the air intake side of the chiller Figure 8 measurement point 1 The emissions in 2 to 4 are generally around 10 lower than 1 Figure 8 Airborne sound emission In partial load mode or under favourable ambient conditions see Chapter 4 7 1 Noise the reduces th...

Page 33: ...tion is given in Chapter 6 2 Installation site 4 7 2 Vibration The chiller is designed so that the vibrations produced by the compressor are largely uncoupled or isolated from the chiller frame To minimise the effect of vibrations still further it is possible to install the chiller with the optionally available levelling feet Chapter 3 25 Vario Foot These are fitted with damping elastomers 4 8 Res...

Page 34: ...fter eye contact Rinse with clean water or eyewash solution for at least 15 minutes with the eyelids open Consult an eye specialist After swallowing Swallowing is not considered to be a possible exposure pathway as the refrigerant exists in the surroundings in a gaseous state Information for the doctor Do not administer any catecholamines or adrenalin ephedrine preparations Firefighting measures S...

Page 35: ...oke during work 4 9 2 Oil First aid measures After breathing in Take the person affected out into the fresh air and provide rest while keeping yourself safe Consult a doctor After skin contact Take off soiled soaked or impregnated clothing Wash skin with water If symptoms occur consult a doctor After eye contact Rinse with clean water or eyewash solution for at least 10 minutes with the eyelids op...

Page 36: ...bber Eye protection Tight fitting safety glasses goggles Handling and storage Handling Avoid lengthy skin contact Avoid breathing in high concentration mist Avoid breathing in high concentration fumes Storage Suitable material for containers Mild steel Close unused containers tightly to prevent the penetration of moisture Keep away from strong oxidants 4 10 Reasonably foreseeable misuse Reasonably...

Page 37: ...ple from the danger zone immediately An emergency situation can be among other things o Leaks and escape of refrigerant and or oil o Parts of the machine have come undone mechanically o The machine makes unusual noises o The machine vibrates severely Then contact the KKT chillers service team If you have noticed that refrigerant or oil has escaped proceed as described in Chapter 4 9 Hazardous subs...

Page 38: ...y is always 12kg 5 2 Transport The chiller is only allowed to be transported using a fork lift truck with adequate load bearing capacity Refer to the technical specifications for details of your machine s net weight Please note that a machine that has already been in operation can contain residual liquids which increase the transport weight WARNING The chiller must not be titled by more than 10 fr...

Page 39: ...terial Recycling code Polystyrene corners Polystyrene Stretch film Polyethylene Edge protection corners Carton board Packaging tape Polypropylene Lock bushings Steel zinced Wooden pallet Treated raw wood to ISPM15 5 4 Storage If the chiller is stored for longer than one month it should remain in the transport packaging or re packed The following conditions must be maintained during storage Avoid d...

Page 40: ...ion capacity The air flow rate to be supplied to your machine is given in Table 3 Technical specifications When choosing the installation site ensure that waste heat is not transferred to other processes directly on the air intake side of the chiller WARNING Do not install in rooms with naked flame or smoke emissions 6 2 2 Minimum volume The refrigerant in the unit is assigned to safety group A1 i...

Page 41: ...wer the temperature of this cooling air Sunshine or waste air from other machines heats up the ambient air This must be taken into account when installing the chiller Preference is to be given to shaded installation The maximum ambient temperature is given in the technical specifications 6 2 4 Effect of surrounding air flow The chiller gives off heat to its surroundings in exchange the machine dra...

Page 42: ...1 and 3 are each 2 metres long maximum The 90 bend 2 has a pressure loss coefficient of ζ 0 2 The system designed is responsible for sealing and mechanical fixing of external installations Figure 10 Waste air duct by way of example For duct systems with a pressure loss greater than 5 Pa an external ventilation system with variable air quantity must be provided Please contact our KKT chillers servi...

Page 43: ...iform contact with the baseframe 6 2 9 Stability The machine usually stands firmly with its baseplate on the ground or floor It is not necessary to fix the machine onto the floor However if this is not possible due to the ambient conditions the machine can be equipped with the optionally available levelling feet 3 25 Vario Foot The levelling feet provide very good resistance to slipping If this is...

Page 44: ...the chiller and application The dependencies are among other things the accepted pressure loss in the connection pipes and the available pump pressure When designing the connections attention must also be paid to the minimum flow rate required and sufficient pressure resistance to the maximum pump pressure In the case of chillers equipped with an internal tank the cold water circuit must be hydrau...

Page 45: ...rd to the operating liquid and mix ratio 6 2 15 Flushing the cold water circuit Dirt in external pipes and components can damage the chiller Before the chiller is connected hydraulically with the cold water circuit the cold water circuit must be flushed several times If there are dirt traps in the cold water circuit they must be cleaned after flushing the pipes 6 2 16 Filling If the hydraulic inst...

Page 46: ...al fill is controlled by the level in the internal tank Before activating the initial fill always ensure that the cold water circuit is leak tight The control adds fresh water until the operating level is reached All filling and feed connections are labelled with the following pictogram Figure 11 Filling and feed connection WARNING In the EU you must follow the provisions of EN378 3 You must also ...

Page 47: ...l the hydraulic installation has been completed and the machine has been filled according to the specifications in Chapter 6 2 15 Otherwise the machine can be damaged The chiller is connected electrically to its main supply terminal in the control cabinet see Figure 13 Main infeed A corresponding circuit diagram is enclosed with the unit Figure 13 Main infeed The load cable and fuses must be dimen...

Page 48: ...et the release see Chapter 8 3 External release the chiller this is laid parallel with the supply cable and is wired to the corresponding terminals in the control cabinet On delivery the machine is bridged at the corresponding terminals If the electrical installation is completed the phase sequence must be checked This is done by checking the rotational direction of the pump A rotational direction...

Page 49: ...klist Unit installed horizontally and stable Any necessary vibration damping and floor anchoring is installed The spaces around the unit are sufficient according to the specifications Air intake side free from packaging material etc Hydraulic connection OK Cold water circuit filled in accordance with specification Water quality OK Whole system flushed Dirt trap cleaned Cross sections adequately di...

Page 50: ...eration range is exceeded or is not reached System on Select System on mode to start fully automatic operation without external release 8 3 External release In its as delivered condition the contact is bridged for external release An external control cable can be wired instead of the bridge Please refer to Chapter 6 2 18 Electrical installation for information on installing the external release Fu...

Page 51: ...by pressing the button Within numerical input fields you increase a value Within text input fields you switch to the previous setting option Press this button to release the input fields for entering changing values to save the value entered in an input field and at the same time to lock the respective input field to acknowledge all fault messages in the Alarms menu if you keep the button pressed ...

Page 52: ...The other menu fields of the start screen provide information The displayed values are changed automatically Manual input is not possible here Active alarm here no fault Inlet inlet temperature Process water cycle 1 in C Outlet1 outlet temperature Process water cycle 1 in C Outlet2 outlet temperature Process water cycle 2 in C Conduct The conductivity of the medium to be cooled in µs cm O O Pump a...

Page 53: ...ne is activated By releasing the text input field Current system operating mode the text shown in the display is aligned with right alignment Press the button to jump within the released text input field to the next possible setting option Press the button to jump to the previous setting option You can select one of the following operating modes System standby System auto System on Press the butto...

Page 54: ...his press the button Please note To navigate between or within menu levels none of the input fields may be released for changing values To navigate from a higher level to a lower menu level press the button Within the menu level press the button to scroll down the displays of this menu level or press the button to scroll up The displays of a menu level rotate through this means Scroll down the las...

Page 55: ... appears in this case If the chiller is switched on and the min level warning is reached the chiller stays switched on so that a cooling process that has started is not interrupted If the chiller is switched off the chiller does not start so that a cooling process is not initiated which might not be able to be ended 8 7 2 Switching the chiller on off The selected pump is released if it is selected...

Page 56: ... Delay on starting the pressure or flow monitoring triggers an alarm if no pressure has built up after the time has expired Delay during operation in order to ignore short term pressure or flow fluctuations the alarm is delayed On switching off the system the temperature control is locked immediately and therefore the compressor is switched off The pump continues running to prevent uncontrolled re...

Page 57: ...e fault alarm is triggered After the start time has expired the low pressure may fall below the switching off value for a short time If this happens more often than three times within an hour the compressor is locked Before triggering a low pressure fault a low pressure warning is signalled 8 7 5 Fan speed control The continuous adjustment of the fan speed keeps the condensation pressure constant ...

Page 58: ...lly flush the inside of the microchannel heat exchanger in the opposite direction to the air flow with hot tap water Then clean with a wet vacuum cleaner until the surface is once again dry For versions with a water cooled condenser refer to the complete cooling of the cold water circuit 9 3 Water filter To ensure the required water quality and the necessary circulating water quantity the optional...

Page 59: ...he minimum maintenance The system s reliability can be increased by intensifying the monitoring You can contact our service department at any time regarding servicing and maintenance quotations maintenance agreements Use the enclosed form to register your chiller Product Registration In this way you will receive fast and uncomplicated support in a service case as KKT chillers already has all the r...

Page 60: ...ired In this way you ensure the reliability and quality of the machine For spare parts enquiries please contact our KKT chillers service team Contact details Use the enclosed form to register your chiller Product Registration In this way you will receive fast and uncomplicated support in a service case as KKT chillers already has all the relevant data ...

Page 61: ...o protect the liquid against frost If the unit is shut down for a lengthy period the complete cold water circuit must be fully drained Proceed as follows 1 Drain the tank via the drain tap provided for this purpose 2 Drain the evaporator via the drain tap provided for this purpose 3 Drain the pump via the drainage plug provided for this purpose The drain tap is marked in the unit by the symbol lis...

Page 62: ...nd follow all local and national regulations and if necessary contact your local waste management authority A specialised disposal company must be used for the disposal of these wastes They will issue a proof of disposal that must be archived The chiller can be returned to KKT chillers for disposal In this case please contact our KKT chillers service team Contact details 13 Products solutions and ...

Page 63: ...he high pressure limiter PZH 30 Figure 8 Airborne sound emission 32 Figure 9 Centre of gravity of vBoxX 6 28 38 Figure 10 Waste air duct by way of example 42 Figure 11 Filling and feed connection 46 Figure 12 Position of the pump venting example of horizontal type 46 Figure 13 Main infeed 47 Figure 14 Control unit of the 51 Figure 15 Start screen 52 Figure 16 Activating the menu line 53 Figure 17 ...

Page 64: ... used in thenon ferrous metal free version 17 Table 7 Water quality 18 Table 8 AFN and AFL or equivalent mix ratios 19 Table 9 Definition of the safety symbols 28 Table 10 Hazard Warnings 29 Table 11 Personal protective equipment for service work 32 Table 12 Packaging materials 39 Table 13 Minimum volume of the installation room with regard to maximum refrigerant concentration in case of a leak if...

Page 65: ...65 82 83000602 Ke I Overview of the menu levels Main structure ...

Page 66: ...66 82 83000602 Ke Status ...

Page 67: ...67 82 83000602 Ke Parameters ...

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Page 72: ... supply pipe Check supply pipe for leakage 321 Press CW EV min warn The liquid pressure at the evaporator is approaching the minimum or maximum limit External gate valve closed Filter dirty Air in the system Open the external gate valve Clean the filter Vent the system 326 327 Press P1 min warn Press P2 min warn The pump s pressure is approaching the minimum limit Flow rate too high chiller resist...

Page 73: ...uring operation Flow rate too high Air in the system external pressure loss too low Pump is operating outside the set limits Increase external pressure loss 501 AI Temp inlet Output value of the sensor is incorrect Sensor short circuit or sensor break Use the characteristic curve to check the electrical connection of the sensor 502 AI Temp Outlet 1 Output value of the sensor is incorrect Sensor sh...

Page 74: ... two phases only rotational direction poor contact at terminal connections interturn short circuit earth fault rotor blocked Check the motor power consumption check the operating point check the electrical connection of the components 621 DI mpcb compressor Motor protection switch has tripped Motor current above the allowable range Motor is running in two phases only rotational direction poor cont...

Page 75: ...Use the characteristic curve to check the electrical connection of the sensor 823 AI uPC suct gastemp Output value of the sensor is incorrect Sensor short circuit or sensor break Use the characteristic curve to check the electrical connection of the sensor 824 AI uPC hot gas temp Output value of the sensor is incorrect Sensor short circuit or sensor break Use the characteristic curve to check the ...

Page 76: ...owable value Suction gas temperature too low Reset takes place automatically 845 EEV group fault An error has occurred at the expansion valve one or several of the above 3 messages in relation to the expansion valve EEV has have occurred Reset takes place automatically 851 INV general alarm Communication with the inverter is disrupted The power supply has been interrupted Interface cable not conne...

Page 77: ...rs service department 914 INV Drive Thermistor Internal inverter error Thermistors in the inverter are faulty Contact KKT chillers service department 915 INV autotune fault Automatic setting incorrect Incorrect inverter parameterisation Contact KKT chillers service department 916 INV Drive disabled Inverter has no release 24V voltage supply inadequate Bridge between terminal 9 and 10 missing Conta...

Page 78: ...refrigerant side for leaks x 12 Check high low pressure switching device x Air cooled condenser 20 Check outside for dirt damage and corrosion x x 21 Measure the condensing temperature x 22 Measure the undercooling temperature at the condenser outlet on the refrigerant side x 23 Measure the medium temperature at the condenser inlet and outlet x 24 Check the function of the condensation pressure co...

Page 79: ...ipes carrying refrigerant for corrosion and damage x Fans 50 Check outside for dirt damage and corrosion x x 51 Check fixing parts and bearings x 52 Check the flexible connection for leaks electrical connection x Pump and Piping 60 Check outside for dirt damage and corrosion x 61 Check fixing parts and bearings x 62 Check safety function of the safety switching devices x 63 Check the pump mechanic...

Page 80: ... the temperature and pressure sensors are functioning x 95 Check the function of the motor protection switches x 96 Check the 24VDC and infeed voltage x x 97 Check the control cabinet heating x 99 Check the control cabinet filters and if necessary clean and change clean if necessary x Documents and Signage 11 0 All documents such as the instruction manual schematic diagrams circuit diagram system ...

Page 81: ...81 82 83000602 Ke IV Product Registration PDF download http www kkt chillers com en downloads product registration ...

Page 82: ...82 82 83000602 Ke V EC Declaration of Conformity ...

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