Инструкция на Чиллеры KKT chillers Evolution Line eBoxX 260–530 бренда KKT chillers

Evolution Line

GB Original operating manual eBoxX eBoxX eBoxX eBoxX eBoxX eBoxX 1 / 107 83004002.Kb

Table 1: Contact details

Sales and project planning Service ait-deutschland GmbH Industriestraße 3 95359 Kasendorf Germany T +49 9228 9977 0 F +49 9228 9977 149 E info@kkt-chillers.com W www.kkt-chillers.com ait-deutschland GmbH Industriestraße 3 95359 Kasendorf Germany T +49 9228 9977 7190 F +49 9228 9977 7474 E…

Introduction

These operating manual have been drawn up by KKT chillers on the basis of the Machinery Directive 2006/42/EC. They contain all important information and instructions for the installation and safe operation of the chiller. It also contains suggestions on how to prevent or correct faults. Please take…

Product description Please read all the points in these operating manual before starting up the machine. You should pay particular attention to the points on safety, commissioning/start-up and operation. Should you have any further questions concerning your machine, please contact the KKT chillers…

1.2. Explanation of terms

For the sake of better understanding, we have listed some relevant terms that are used frequently in this document. Table 3: Explanation of terms Term Explanation Application The source of heat hydraulically connected to the chiller. Process circuit Application and piping to the chiller. Cold water…

2.2. Evaporator

The evaporator is a plate heat exchanger that transfer heat from the cold water to the refrigerant. In order for the transfer of heat to take place, the refrigerant in the evaporator must have a lower temperature than the cold water and changes its physical state upon heat absorption from liquid to…

2.7. Filter dryer

The task of the filter dryer is to absorb any contamination or moisture from the cooling circuit. Both refrigerant and oil are hygroscopic. When installing the refrigeration circuit, the oil may absorb moisture. This moisture can lead to corrosion and impair the cooling process. The filter dryer…

2.15. Materials used in the water circuit

In the standard version, the material compilation is depicted as shown in Table 5 : Table 5: Materials used Component Material Unit connections V2A 1.4305 Evaporator V2A 1.4301 and copper (99.9%) Water piping V2A 1.4301 Bends, tees, couplings V2A 1.4301 Temperature sensor V2A 1.4301 Pressure sensor…

2.16. Water quality

The following limit values must be adhered to to ensure the safe operation of the devices: Table 6: Water quality Property / Constituents pH-value (20°C) Saturation index Conductivity Water hardness Unit Value range - 7.5 - 9 - -0.2 < 0 < +0.2 µS/cm 80-500 °dH 4 - 8.5 Carbonate hardness mol/m³ <0.5…

Please note that Antifrogen N and Antifrogen L should always be diluted with water. In addition, glycol-water mixtures may only be used without the addition of inhibitors due to their corrosion-promoting properties, which are stronger than those of water alone. For further information and data…

Technical data 3.1. Technical data standard device Table 7: Technical data KKT chiller type eBoxX Cooling capacity1) kW Refrigerant - R410A Coolant media - Water or water/glycol 34% Refrigerant filling quantity total kg 20.5 22.5 Refrigerant GWP - 2088 2088 2088 2088 2088 2088 CO2 equivalent Total…

3.2. Hydraulic module (option)

Table 8: Optional hydraulic module KKT chiller type eBoxX Pump type - Pump type - Grundfos NB 97839225 96125030 NB 40-250/245 AF2ABAQE 50 Hz NB 50-250/254 AF2ABAQE 50 Hz free pump pressure max. bar 6.00 Power consumption pump kW 18.5 18.5 Tank content l Weight additional (net) kg Weight in total…

Standard configuration The chiller is available in the standard version as a continuous cooler without tank and without integrated pump. This makes it possible to design an integrated system consisting of an external tank pump station or pump station or heat exchanger station with the chiller. Of…

4.4. Condenser protection grille

Only available for eBoxX 350 to eBoxX 530. These are standard side panels in RAL 9018 with aesthetic function and to protect the condenser against rough external influences. Figure 3: Display eBoxX 260 Figure 4: Display eBoxX 350 4.5. Electronic expansion valve This is a standard electronic…

Options and accessories The chiller can be equipped in the factory with the options described in the following. The positions marked with "Accessories" are supplied separately and can be reordered at any time. The installation of the accessory is the responsibility of the installer of the machine.…

Figure 6: Pump type eBoxX350-530 -> Grundfos NB 50-250/254

5.2. Micro-channel condenser The Evolution Line units are optionally available with an epoxy coated micro channel condenser. The Micro-Channel Registers made of aluminium / aluminium are treated with so-called "E-coating" to guarantee a higher wear protection against aggressive environmental…

Definition coastal / marine areas

Coastal and marine areas are characterised by the effects of the sea. Corrosion here is mainly caused by the salty sea water and potentially by the high degree of humidity. Sea salt can be blown away by the wind in the form of droplets or float in the mist and corrosion can be caused by the chlorine…

The polymeric treatment with ElectroFin ® E-coating is resistant to the chemical agents listed below at ambient temperature. This table should be used as a general reference. Table 11: Resistance e-coating Acetone Fructose Ozone Acetic Acid Gasoline Perchloric Acid Acetates (ALL) Glucose Phenol 85%…

5.3. Accessories for height-adjustable spring antivibration mountings

Height-adjustable spring antivibration mountings for installation by the customer (optional accessory). Figure 7: Height-adjustable spring antivibration mountings 5.4. Container shipping accessories We would be pleased to offer you the dispatch of the chiller including container loading. The chiller…

Safety The chiller, within the sense of its intentional use, is designed to operate safely, Provided that the instructions concerning transport, installation, commissioning and maintenance described in this operation manual are followed. The machine complies with the safety standards of the EC…

6.2. Hazard warnings

A number of warning labels are applied to the machine. Keep these warnings clean at all times. Damaged or missing warnings must be replaced. The GENERAL DANGER warning alerts operators and maintenance personnel to hazards that could result in death, injury, and permanent or latent illness. The…

6.3. Residual energy

Even if all the hazard warnings in 6.2 are taken into account, the following residual energy situations can result in a hazard: ▪ ▪ ▪ ▪ Rotational energy of the decelerating fan o Despite the installed protective grille, hair or pieces of clothing can still be drawn in and caught. Hot surfaces on…

Figure 10: Warning labels for residual energy eBoxX 350-530

ATTENTION! The symbols and instructions on the machine must be observed. Note: After switching off the unit at the main switch, if you wait for 5 minutes before opening the unit risks due to rotational energy and electrical power can be reduced. In this case only the residual thermal energy must be…

ATTENTION! The safety valve on the high pressure side is calibrated to 43 bar. It can be triggered if the calibration value is reached during the filling of the refrigerant, which can lead to an output and thus to cold burns (as with other valves in the circuit). 28 / 107 83004002.Kb

Note High pressure limiter

Once it has been triggered, the pressostat must be reset manually by pressing its key all the way and resetting the alarm on the control panel. To identify the cause of the intervention and the maintenance required, refer to the troubleshooting table. 6.5. Personal protective equipment when…

6.7. Residual risks

6.7.1. Electrical ATTENTION! Based on the quality characteristics of EN 50160 and the defined standard voltages of IEC 60038, the mains voltage deviation may not exceed +/- 10% of the nominal voltage. If all safety provisions are complied with there is no risk. 6.7.2. Mechanical If all safety…

6.8. Dangerous substances

6.8.1. Refrigerant R410A First aid measures: ▪ After inhaling: remove victim to fresh air, ensuring your own safety, and keep the person at rest in a comfortable position. Get medical attention. If the person stops breathing, give artificial respiration ▪ Following skin contact: leave clothing that…

▪ After swallowing: can cause vomiting. Have the mouth rinsed out with water and give the patient two glasses of water to drink. Get medical advice. Notes for the doctor: symptomatic treatment and assistive therapy as indicated. Fire-fighting measures: Low fire risk. Product only ignites in case of…

6.10. Information for emergencies

If an emergency occurs during operation of the chiller, the machine must be disconnected from the mains at once using the master switch. Remove people from the danger zone immediately. An emergency situation can among other things be: o A leak and escape of refrigerant and/ or oil. o A part of the…

Noise emission The airborne sound emissions data is given as the sound pressure level, measured at a distance of ten metres without reflection. Its maximum value is shown in the technical data and in the product flyer. This only occurs at the highest fan speed on the air intake side of the chiller.…

8.1. Dangerous goods

Chillers with refrigerant capacity >12 kg must be declared as dangerous goods in accordance with UN2857. 8.2. Transport The chiller may only be transported using a fork lift truck or crane with sufficient rated capacity. The net weight of your machine is given in the technical data. Please note that…

8.2.1. Transport eBoxX 260 – eBoxX 300

The chiller may only be transported using a fork lift truck or crane with sufficient rated capacity. Figure 11: Transport eBoxX 260 - eBoxX 300 depicts the regulations for crane transport. Remark forklift: It is possible to transport the machine both in a packed and an unpacked condition by means of…

8.2.2. Transport eBoxX 350 – eBoxX 530

When it is unpacked, the machine can be lifted by means of a crane and an adequately dimensioned lifting beam. Figure 12: Transport eBoxX 350 - eBoxX 530 depicts the regulations for crane transport. Please observe the following: ▪ ▪ ▪ ▪ ▪ Always handle the unit with extreme care in order to avoid…

8.3. Unpacking

ATTENTION! Packing straps are mechanically stressed and can snap back when cut. Risk of injuries! Remove all straps, films, corner protectors and spacers carefully. Optional accessories may be located under the film. Ensure that they are not damaged. The packaging can be recycled according to the…

Installation 9.1. Overview Several tasks are necessary to install the chiller. The following work schedule shows the order in which they are carried out: ▪ Prepare the installation site ▪ Install the machine ▪ Flush the cold water circuit ▪ Hydraulic installation ▪ Fill the whole system ▪ Vent the…

eBoxX 350 – eBoxX 400

eBoxX 490 – eBoxX 530 Table 19: Weight distribution eBoxX 350 – 530 without option Hydraulic module Weight eBoxX 350 eBoxX 400 eBoxX 490 eBoxX 530 kg 1,700 2,050 2,550 2,565 A kg B kg C kg D kg eBoxX 350 eBoxX 400 eBoxX 490 eBoxX 530 2,380 2,730 3,360 3,375 net Support leg Table 20: Weight eBoxX 350…

9.3.2. Minimum room volume

The refrigerant R410A contained in the system is classified in safety group A1 in accordance with EN 378-1 Table E.2. I.e. the refrigerant is not flammable and has low toxicity. If the chiller is installed in enclosed rooms without additional safety measures a minimum room volume is required. This…

9.3.5. Minimum clearances

The minimum clearances around the machine are made up of service clearances and clearances to ensure optimum air supply. On the one hand accessibility must be ensured from all sides, in addition, an unhindered, sufficient quantity of cooling air must be able to be drawn in and blown out upwards. If…

9.3.7. Stability

The normal situation is for the machine to be positioned firmly on the ground. It is not necessary to anchor the machine to the ground. If, however, if ambient conditions make it necessary, the machine can be connected to the ground at the base frame or optionally equipped with the available…

9.3.11. Frost protection measures

The chiller is exposed to the risk of frost in two different situations. Both with an ambient temperature < 5°C and a flow temperature < 10°C there is a risk of freezing of parts of the cold water circuit system. Installation at ambient temperature < 5°C with anti-freeze mixture The machine is…

Note

Always install a circuit-breaker with delayed characteristic, sufficient load capacity and breaking capacity and with a minimum contact opening of 3 mm at a protected location and close to the machine. (The device must be able to interrupt the assumed short-circuit current, the value of which is…

10.1. Start the procedure

ATTENTION! Switch on the power supply at least 12 hours prior to commissioning so that the crankcase heater of the compressor is supplied with power. These heaters are automatically switched off each time the machine is started. ATTENTION! The initial start-up of the unit may only be carried out by…

10.1.1. General condition of the unit

Start Have the minimum technical distances specified in the instructions been observed? "no" Observe the specified technical minimum distances! "no" Clean the microchannel! "no" Remove blockages! "no" DANGER: Do not start the unit under any circumstances! The unit must be inspected and repaired if…

10.1.2. Checking the oil level of the compressor

Start Is the oil level sufficient? "no" Refill as required "no" Switch on preheating and wait 12 hours. "yes" Was preheating switched on at least 12 hours before the start? "yes" The compressors are ready to start. ATTENTION! The initial commissioning of the unit may only be carried out by qualified…

10.1.3. Checking the water connections

Start Were the connections made correctly? "no" Adjust the connections! "no" Adjust the inlet and outlet direction! "no" Filling and/or venting circuits "no" Restore the flow rate! "no" Check the rotating field and, if necessary, establish the correct phase position! "no" Correct or replace the…

10.1.4. Electrical connections

Start Is the unit is fed according to the values indicated on the nameplate and in the circuit diagram? "no" Make sure that the supply is correct! "no" Make sure that the phase sequence is correct! "no" DANGER: Reposition the earth connection! "no" DANGER: Replace the cables immediately! "no"…

10.2. Initial commissioning

If the previously listed checks have been completed with a positive result, you can proceed with the initial commissioning of the machine. Start Activate the motor protection switches of the compressors. "yes" Simulate a test start to check whether the contactors have been fitted correctly. "yes"…

10.3. Checking while the machine is running

Start Unauthorized persons must be sent away. "OK" Is the differential pressure switch on the water side triggered correctly? "no" Check the component and replace if necessary! "no" Switch off the unit and find the cause of this malfunction! "no" Switch off the unit and find the cause of this…

11. Operation

The chiller is designed for fully automatic operation. 11.1. Switching on / off First switch on the device by flipping the main switch. Figure 13: Main switch Switching on the system Switching off the system Turn the circuit breaker on the handle by 90° clockwise. Turn the circuit breaker on the…

11.2. Control panel / User interface

Figure 14: Control panel Table 22: Control panel buttons Button Action Button [ALARM] Visualisation of the list of active alarms Button [PRG] Provides access to the programming menu for the settings. Button [ESC] Return to the upper level mask Button [UP] If the cursor is on the movement field…

11.3. Status after switching on and off

After switching on the system, the following screen page appears With 03.07.2019 09:59 Setpoint: Outlet Inlet State: Operation: Keyboard On/Off: REG → 41.5 °C 25.0 °C 26.0 °C ON [PRECIRC] Cooling ON Figure 15: Start screen To switch on/off the unit: 1. Move the cursor to the last line while pressing…

11.4. Status of refrigeration circuits

By pressing the UP and DOWN keys you can scroll through some menus on the main screen page and check the status of the unit and some settings. The first screen is the status of cooling circuit 1, followed by the other circuits (if more than one). Figure 16: Status of refrigeration circuits Display…

11.6. Main menu

Press the Prg key to return to the Seconds main menu. Main menu 01/09 A. Setpoint B. Clock C. Limitation Figure 17: Main menu 1 Main menu 05/09 D. Input / Output E. Data storage F. Info Figure 18: Main menu 2 Main menu 09/09 G. Language selection H. Operating hours I. Config GLT Figure 19: Main menu…

11.7. Setpoint value menu

In addition to the water temperature setpoint for all operating modes (cooling mode, heating mode, recovery, domestic hot water), the operating mode can also be set in the Setpoint menu (see Figure 17: Main menu 1 ). Setpoint A01 Mode change: Unit mode Display Cooling Adaptive mode: PRECISION…

x = Load component [%]

y = Actual value [°C] S = Setpoint set by user [°C] Figure 21: AF+ in cooling mode/AUTOMATIC 11.7.2. Setpoint compensation If the machine is set to the return temperature or to the flow temperature and AF+ is used in Precision mode, climatic compensation of the setpoint can be activated based on the…

11.8.1. FDL = Power reduction

Limitation FDL Power reduc. C01 ON through: Power limit..: Clock + DIN 100 % Figure 23: FDL - Power reduction Setting Comment ON through Sources for the power reduction control command Power lim. Percentage of the total power of the machine to which the power demand is to be limited. The EEM…

Limitation

FNR air reduction. C02 ON through: Clock + DIN Figure 25: FNR - Noise reduction The possible sources of the power reduction control command are: Setting Comment Deactivated Function deactivated F.Oraria Function activated for time switches. DIN Function activated for digital input (FNR1 and FNR2)…

11.9. Inputs / outputs menu

The Inputs / outputs menu, see Figure 17: Main menu 1, is displayed one after the other via the current status. Analog inputs (water temperature probes, pressure transducers) Input/Output D01 Analog input Outdoor temperature m/B1: 23.8 °C WRG inlet temperature m/B2: 45.9 °C Compressor Inlet Water…

Alarm history

No 029 ALU 05 Evaporator Pump 2 E01 03/07/2019 15:19 State: On Operation: Cooling Figure 30: Alarm history Press the ENTER key to display the details of the displayed alarm. Use the UP and DOWN keys to scroll through the detail views. 11.11. Info menu The Info menu, see Figure 18: Main menu 2, shows…

Information

F04 Unit: Gas type: Circuit: Compressor per circuit: Air/Water R410A 2 2 Evaporator Condenser 1 1 Figure 34: Menu info 4 General description of the inverter hardware and software: Information F05 Power + no 1 Boot Version: FW Version: FW Checksum: MC Version: Hardware ID: Figure 35: Menu info 5…

Operating hours menu In the operating hours or working hours menu in accordance with Figure 19: Main menu 3, it is possible to display the total hours worked and the number of compressor starts for each compressor. Operating hours of the compressor Number of compressor starts 1: Hour counter Circuit…

GLT config

I01a Type: Offline: NONE FORCE ON Activ. LON factor: NO Activ. BAC factor: GLT table: NO #1 Figure 40: Config GLT Setting Comment Type NONE / GEN. (Monitoring system at customer's expense) / STEP SWITCH / PDC SYSTEM / IRTECHMASTER / ADVANCED STEP SW. (SIR - integrated step switch) / EXPBOX Offline…

Alarm display ATTENTION! Always check the origin of the alarms displayed by the unit. Do not use the unit until the cause of the alarm has been found and eliminated. Button [ALARM] Visualise the list of active alarms. In the event of a malfunction, the corresponding LED switches on the ALARM button…

Alarm type

Comment ALXxx Alarms Non-connection control cards. ALBxx Alarms Sensor faulty/not connected. ALCxx Alarms blocking the circuit/compressor. ALUxx Alarms blocking the unit. ALDxx Alarms Drive electronic thermostatic valve. ALVxx Notes. ALGxx Other general alarms. Reset AUTO: The alarm is automatically…

Code

Description Reset Action ALC04 Circuit N Low pressure of pressure switch SEMIAUTO Circuit.N OFF ALC05 Circuit N Low pressure of transmitter SEMIAUTO Circuit.N OFF ALC06 Circuit N High pressure from pressure switch MAN Circuit.N OFF ALC07 Circuit N High pressure of transmitter SEMIAUTO Circuit.N OFF…

Menu controller settings ATTENTION! This menu may only be used by qualified personnel by entering the correct password. Press the PRG key on the main screen to display the password entry screen and access the screens reserved for the installer or service partner. Restricted access Enter password…

11.16.1. Setting the hour counter

In the Hour meter settings menu according to Figure 44: Service menu 1, it is possible to modify the counters of the operating hours and starts carried out by each compressor and also to manage the requested maintenance alarm. Counter setting Circuit 1 Ja01 Coms. 1 Work 0000 h Startup 0000 h Coms. 2…

11.16.2. Sensor calibration menu

In the Sensor calibration menu, according to Figure 44: Service menu 1, corrections can be made to the values read by the sensors. Sensor adj, Jb01a Outdoor temperature Sensing period: 30s Enable outside temp. Sensor: YES Figure 48: Sensor setting outdoor temperature Setting Comment Sensing period…

Control of the outlet temperature If in mask Jc02 the use of the control at the outlet of the primary circuit has been set, the masks Jc13..Jc15 appear. The control of the outlet is based on the time for which the temperature is removed from the setpoint to generate the percentage of the power…

Temperature reg

Flow temp. control Force on offset: Increase zone: Min. time: Max. time: Jc14 Td: Td >Incr. zone: 60s 10s 1.5°C 2.0°C 300s 900s Figure 53: Setting flow temperature control 2 The rate of increase to be used is determined by the position of the temperature and the set minimum and maximum times. To…

Compressor times menu Temperature reg. Compressor minimum time -between diff. Jc31 Compressors start: -between diff. Compressor off: 10s 2s Figure 55: Compressor switching times A minimum time interval can be set in order to avoid switching on and off, which would put a strain on the electrical…

Pump Down Temperature reg. Pump down Jc40 Activation: Max. time: And threshold NO 60s 4.0bar Figure 57: Pump don setting In the Jc40 mask, the pump-down function, which closes the EVV expansion valve before the compressors switch off on request, can be used to draw in most of the refrigerant…

11.16.4. Setpoint limits menu

Service menu 4/12 c. Thermoregulation d. Setpoint limits e. Pumps Figure 59: Service menu 2 In the Setpoint limits menu, you can define the ranges within which the user can move. Setpoint limits Cooling setpoint limit Jd01 Minimum setpoint 1: Maximum setpoint 1: 7.0°C 17.0°C Minimum setpoint 2…

11.16.5. Menu pumps / primary pump (optional hydraulic module)

Pumps Evaporator pump Mode: Enable antiblock: Pre-circulation: Modulation delay: From delay: Je01 UPON REQUEST YES 20s 10s 20s Figure 61: Setting pump 1 Setting Comment Mode Operating mode of the primary circuit pump: ALWAYS ACTIVE: The pump is kept on when the unit is on and there are no blocking…

Only in pump mode ON REQUEST mode

Pumps Evaporator pump Times Idle time: Flushing time: Pause time: Je04 5m 15s 5m Figure 63: Pump setting in "On request" mode Setting Comment Idle time Compressor standstill time after which the pump is switched off and the unit is paused Flushing time Time of forced pump operation due to…

Condensation control

Condenser fan In KWS mode Setpoint: Diff: 7.0bar 7.0bar Jf04 → → Cut-Off: -0.2°C 21.3°C 1.0bar Figure 66: Setting of the fans for chiller mode Setting Comment Setpoint Pressure set point for switching on the fans Diff Scope of the control range from minimum speed to maximum speed Cut Off Cut-off…

High pressure prevention Prevention High pressure prevent. Jh02 Threshold: Difference: 17.5bar 1.0bar Warning delay: Forced shutdown. Quantity: 1s 1 Figure 68: Compressor shutdown high pressure Setting Comment Threshold High pressure threshold in relation to the threshold above which the performance…

Prevention anti-freeze mixture Prevention Anti-freeze mixture prevent. Jh06 Threshold: Difference: 4.0°C 2.0°C Warning delay: Forced shutdown. Quantity: 1s 1 Figure 70: Compressor shutdown anti-freeze mixture When activated, antifreeze prevention behaves in the same way as for high pressure…

Low pressure alarm The low pressure alarm has no fixed threshold in cooling mode, which is variable due to the output temperature from the primary heat exchanger. The colder the water, the lower the alarm threshold. To achieve this floating threshold, the alarm threshold is determined when the…

Alarm

ND alarm reset -Cooling mode Max. resets/hour: Max. resets/day: -Heating mode: Ji03 Max. resets/hour: Max. resets/day: Figure 73: Setting / Frequency ND alarm 11.16.8.2. High pressure alarm In mask Ji04 you can set the threshold that determines the high pressure alarm (which is triggered without…

Alarm

Anti-freeze mixture heating Primary Ji06 Offset of anti-freeze mixture Threshold: 1.0°C Difference: 1.0°C Figure 76: Heating setting With the data given in the example masks, the electrical resistor is activated together with the circulation pump at 4 °C, then the antifreeze mixture alarm is…

Low condensing pressure alarm In the masks Ji20 and Ji21, the condensing low pressure alarm can be activated and the parameters for the trip threshold, the intervention bypass and the number of automatic resets allowed per hour and per day can also be set. Alarm Low Condensing pressure Ji20…

Alarm offline In mask Ji26, you can set how long any disconnections or communication problems with the serial devices should be ignored (EVD driver, inverter, EnergyMeter, etc.). The bypass at startup is applied when the circuit board is turned on and is usually longer than the bypass taken into…

11.16.9. EEV menu - Electronic expansion valve

Service menu 8/12 i. Alarm j. EEV k. Parameter reset Figure 84: Service menu 4 In the EEV menu, you can modify the parameters that change the operation of the expansion valve and the related alarms. When the circuit is started, the electronic thermostatic valve opens to a percentage proportional to…

Jj11

Superheating setpoint.: -during recovery: -partialised: 5.0K 5.0K 5.0K Figure 86: Setting expansion valve 2 Setting Comment Superheat setpoint Superheat set point to be maintained for operation -during recovery Superheat setpoint to be used when operating with activated heat recovery (not provided…

Jj21

Low super.: 2.0K LOP thresh. (-8C): -16.0°C LOP thresh. (+7C): MOP threshold: -3.0°C 15.0°C Figure 87: Setting expansion valve 3 Setting Comment Low superheat Threshold value alarm low superheat (LowSH). When the superheat drops below the set threshold, the integral time of the PID is changed to…

Jj51

Alarm delay LowSH.: 300s LOP: MOP: 300s 600s Figure 90: Setting expansion valve 6 The threshold and the delay of the low suction temperature alarm are set in mask Jj61. EEV valve Circuit 1 (cooling) Jj61 Alarm min. intake pressure temperature Threshold: Timeout: -50.0°C 300s Figure 91: Setting…

Service menu Manual mode menu 12/12 j. EEV k. Parameter reset l. Manual mode Figure 93: Service menu 5 In the Manual mode menu, manual procedures such as deactivating compressors and manually changing the status of relay outputs and analog outputs can be performed. It is recommended not to use these…

Manual mode

Digital output Compressor 1 C1 AUTO: m/NO1: Compressor 2 C1 AUTO: m/NO2: Fan contactor C1 AUTO: m/NO3: Jl06 Open Open Open Figure 96: Digital outputs setting The status of the analogue outputs of the board can be forced in the mask JI20 and following. For this, go to the AUTO field and change it to…

12. Hardware – Configuration

12.1. Description of the card / circuit board 1: Connector for terminal 2: Serial connection master card 3: Connector terminal PLD 4: Serial connection Actuator Electronic thermostatic valve 5: Relay digital output 6: Digital input 7: Analog input for sensor 8: Analog output 9: Serial card 10…

12.2. Configuration of inputs and outputs for eBoxX260 to eBoxX300

Analog inputs Pin Type Description B1 NTC Outdoor temperature (can be activated) B2 NTC Temp. In. Recovery/DS (option RC100/DS) B3 NTC Temp. input primary circuit B4 NTC Temp. output primary circuit B5 - B6 0-5 V Low pressure converter circuit 1 B7 0-5 V High pressure converter circuit 1 B8 NTC…

Analog outputs

Pin Type Description Y1 0 – 10 Vdc Control levels resistors (option RIS) Y2 0 – 10 Vdc Modulation system pump (option VPF) Y3 0 – 10 Vdc Fan speed circuit 1 12.3. Configuration of inputs and outputs for eBoxX350 to eBoxX530 Analog inputs Pin B1 B2 B3 B4 B5 B6 B7 B8 B9 B10 B11 B12 Type NTC NTC NTC…

Analog outputs

Pin Type Description Y1 0 – 10 Vdc Control levels resistors (option RIS) Y2 - Y3 0 – 10 Vdc Fan speed circuit 1 Y3 0 – 10 Vdc Fan speed circuit 2 97 / 107 83004002.Kb

13. Maintenance

Reliable operation and a long service life for the entire system can be guaranteed by proper maintenance. The purpose of the maintenance is: • to ensure that the machine operates reliably and without unexpected failures • to plan further service work in order to minimise downtimes An overview of the…

Fans When needed - at least every 6 months. The grilles of the fans must be kept free of blockages. 33. Check electrical connection of fan When needed - at least every 6 months. The engine must be kept clean and must not show any traces of dust, dirt, oil or other impurities. This can lead to…

Check filling level / standstill pressure When needed - at least every 6 months. 65. Check diaphragm expansion vessel When needed - at least every 6 months. 66. Water filter (if available - external) At least every 6 months. This filter must be cleaned regularly. 70. Control cabinet 71. Visual…

The following detergent has been approved for cleaning condensers with ElectroFin ® e-coating to remove mould, dust, soot, greasy residues, lint and other particles, provided it is used in accordance with the preparation and cleaning instructions on the packaging: Product Dealer Product code…

ATTENTION

Aggressive chemical and acidic detergents, aggressive chemicals, household bleach or acidic detergents must not be used to clean ElectroFin®-coated condensers. These detergents are difficult to rinse, accelerate corrosion and attack the ElectroFin® coating. If the dirt is under the surface of the…

14.4. Checking the oil level in the compressor

ATTENTION! Do not use the units if the oil level in the compressor is low. The lubricating oil level in the compressor can be checked via the sight glasses. The oil level must be checked when all compressors are in operation. Figure 99: Example Compressor assembly – oil sight glass In some cases…

15.2. Spare parts

To ensure that the performance of your chiller is not impaired, we recommend that you only use original spare parts from KKT chillers. By doing so, you ensure the reliability and quality of the machine. For inquiries regarding spare parts, please contact our KKT chillers Service Team…

Инструкция на Чиллеры KKT chillers Evolution Line eBoxX 260–530

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