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Summary of Contents for AIC Aurax Mini Ni
- Page 1 AURAX Mini Ni 10 to 40 kW HIGH EFFICIENCY REVERSIBLE AIR TO WATER HEAT PUMP...
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Page 2: Table Of Contents
ErP data ................. G-26 Start-up and Commissioning ........I-58 DHW circuit performance data ........G-27 Safety Requirements for Maintenance ....I-59 Aurax Mini Ni 2 and 4 PIPES ........G-27 ..............I-60 aIntenance Primary Circuit hydraulic data ........G-27 Maintenance Requirements .......... I-60 Refrigerant circuit.............. -
Page 3: About Our Heat Pumps
able of onTenTs Fig. 1. Location of the main switch ..........G-8 Fig. 2. Heat pump - Front view ...........G-13 Fig. 3. Heat pump - Rear view ............G-13 Fig. 4. Heat pump - Main components in 2-pipe .... system ...................G-14 Fig. 5. Heat pump - Main components in 4-pipe .... -
Page 4: G Eneral I Nformation
eneral nformatIon Liabilities of the Manufacturer, the Installer and the End user Manufacturer Our products are manufactured in compliance î Any instruction regarding periodic checks to with the requirements of the applicable European be performed and possible anomaly to be and United Kingdom Directives and standards, reported, and are therefore delivered with all the required... -
Page 5: About This Manual
eneral nformatIon About this Manual This documentation is part of the product. It will be handed over to the end-user who will keep it, with all the other applicable documents, in a safe place and readily available for use. Before installing, operating or maintaining the unit, please carefully read this manual and all the applicable documents provided with the components and accessories. -
Page 6: Safety Instructions
eneral nformatIon Safety instructions THIS UNIT CONTAINS REFRIGERANT R290 WHICH IS HIGHLY FLAMMABLE SUBSTANCE î Use care to handle such substances - make sure to wear protective personal equipment. î Ensure correct ventilation to avoid refrigerant vapour concentrations close to the ground. î... -
Page 7: Package Contents
Package Contents Unit marking î An Aurax Mini Ni Heat pump, The data plate is located on the back of the heat pump. î An Installation and Maintenance manual î 4 Rubber bell antivibration dampers î A flow switch* î... -
Page 8: Emergency Stop
eneral nformatIon Emergency stop Restarting after an emergency stop The emergency stop allows the unit to be stopped in ▶ This procedure can only be per- the shortest possible time. formed by qualified personnel. ▶ Before restarting and providing If the need arises to activate this procedure, proceed power supply to the unit, make as follows: sure that the reason/problem that... -
Page 9: Health And Safety - Hazard And Prevention
eneral nformatIon Health and Safety - Hazard and Prevention Danger Location Potential Prevention First Aid Injuries î Cuts î Hand injuries Heat exchanger fins î I n c i s e d wounds î Clean the wounds with disinfectant î Cuts î... -
Page 10: G Eneral I Nformation
eneral nformatIon Safety Instructions Danger Location Potential Prevention First Aid Injuries î Make sure system î E l e c t r i c adequate electrical î Electric shock cables and î For severe burns or electric protection m e t a l l i c î... -
Page 11: Aurax Mini Ni
Aurax Mini Ni Refrigeration circuit General Description The refrigeration circuit is made of cooper and complies The AURAX Mini Natural is a high-efficiency reversible with the Pressure Equipment Directive 2014/68/EU air-to-water heat pump with independent production of (PED) and the standard EN 13134 concerning brazing Domestic Hot Water (DHW). -
Page 12: Accessories
roduct escriPtion Accessories Hydraulic kit Pump kit for heating/cooling Hydraulic kit is installed outside the unit structure and Hydraulic kit includes a circulating water pump for permits to limit space and an easier installation of the heating or cooling. It is suitable for hydraulic circuits system. -
Page 13: Heat Pump Main Components
roduct escriPtion Heat pump main components KEY: Controller Electrical board Finned heat exchanger Fig. 2. Heat pump - Front view Fig. 3. Heat pump - Rear view G-13 P-209610_EN • 00... -
Page 14: Heat Pump Hydraulic Components
roduct escrIPtIon Heat pump hydraulic components Fig. 4. Heat pump - Main components in 2-pipe system • The position and/or aspect of the components inside the heat pump can slightly differ according to the model. This drawing shows Aurax Mini Ni 10 kW. KEY: 4-way valve Compressor... - Page 15 roduct escriPtion Fig. 5. Heat pump - Main components in 4-pipe system • The position and/or aspect of the components inside the heat pump can slightly differ according to the model. This drawing shows Aurax Mini Ni 10 kW. KEY: Sight glass with moisture Compressor Filter dryer...
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Page 16: Control Panel And Main Functions
roduct escriPtion Control Panel and Main Functions Unit ON: Heating 00:00 01/01/2014 30.0 °C Evaporator inlet temperature °C 35.0 Evaporator outlet temperature °C External air temp. (FC) San. water temperature 50.0 °C PROBES ALARM SERVICE CIRC. Fig. 6. Control Panel LCD Display - The display contains the operating T1 to T8 function keys - to activate the functions information, parameters, symbols, messages and... -
Page 17: Symbols And Functions On The Control Panel
roduct escriPtion Symbols and Functions on the Control Panel Icons in the Symbol area of the display (some of them will are not active. appear only if the function or circuit is enabled): To enable/disable functions (only for Service Compressor. Indicates that the compressors are personnel). -
Page 18: Location Of The Unit
roduct escriPtion Location of the unit ▶ recommended install outdoor unit free-standing position on a fixed substructure with a height of at least 350 mm. ▶ The unit must be installed in an open space with the required airflow and in a way that pre- vents the recirculation of outside air. - Page 19 roduct escriPtion Wall layout - 1 wall h1-h≤0 [m] Quantity of heat pumps 0≤h1-h≤1 [m] 1≤h1-h≤3 [m] 3≤h1-h [m] 0,35 0,35 5≥ 0,35 0,45 Wall layout - 2 walls front G-19 P-209610_EN • 00...
- Page 20 roduct escriPtion h1-h≤0 [m] Quantity of heat pumps 0≤h1-h≤1 [m] 1≤h1-h≤3 [m] 3≤h1-h [m] D1* [m] 0,35 0,35 0,35 0,35 0,35 0,35 0,35 0,45 5≥ 0,45 * Minimum distance for service Wall layout - 3 walls h1-h≤0 [m] Quantity of heat pumps D1* [m] 0≤h1-h≤1 [m] 1≤h1-h≤3 [m]...
- Page 21 roduct escriPtion If the unit is installed in windy areas, where the wind speed is greater than 2,5 m/s, it is necessary to use wind barriers or increase the distance between the heat pumps by 0,8 m and the distance between the wall and the heat pump by 0,5 m to prevent malfunctions.
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Page 22: Specifications
echnical pecificaTionS Dimensions and weight * Model above shows- 4-pipes model 2-Pipes 4-Pipes 4-Pipes 4-Pipes 2-Pipes/ 4-Pipes Aurax Mini 10 Ni Aurax Mini 15 Ni Aurax Mini 20-25 Ni 1155 1024 Aurax Mini 30-35-40 Ni 1180 1014 G-22 P-209610_EN • 00... - Page 23 echnical pecificaTionS 4-Pipe heat pump connections Heating 2-Pipe heat pump connections G-23 P-209610_EN • 00...
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Page 24: Primary Circuit Performance Data
AURAX MINI NI 2 AND 4 PIPES AM 10 AM 15 AM 20 AM 25 AM 30 AM 35 AM 40 15 Ni 400V height (without 1293 1293 1353 1353 1353 antivibration feet) lenght 1265 1565 1560 1828... -
Page 25: Cooling
AURAX MINI NI 2 AND 4 PIPES Primary circuit AM 10 AM 15 AM 20 AM 25 AM 30 AM 35 AM 40 performance 15 Ni data 400V max. heating capacity 8,35 13,26 13,26 16,84 20,48 25,54 29,25 34,57 min. -
Page 26: Technical Specifications
AURAX MINI NI 2 AND 4 PIPES ErP data AM 10 AM 15 AM 20 AM 25 AM 30 AM 35 AM 40 15 Ni 400V air to water heat pump low-temperature heat pump equipped with a suplementary... -
Page 27: Dhw Circuit Performance Data
DHW circuit AURAX MINI NI 2 AND 4 PIPES performance data DHW A35/W55* AM 10 AM 15 AM 20 AM 25 AM 30 AM 35 AM 40 15 Ni 400V domestic hot water capacity 15,89 23,82 23,82 35,19... -
Page 28: Electrical Data
AURAX MINI NI 2 AND 4 PIPES Electrical AM 15 Ni AM 20w Data AM 10 Ni AM 15 Ni AM 25 Ni AM 30 Ni AM 35 Ni AM 40 Ni 400 V supply voltage/ V/ph/ 230/1+PE+N/... -
Page 29: Primary Circulation Pump (2-Pipes Only) - Aurax Mini
Primary circulation pump (2-Pipes only) - Aurax Mini Ni 10-15 m3/h m3/h Fig. 9. Circulation pump total pressure head Fig. 10. Heat pump pressure losses Fig. 11. Available system pressure head Some of components as a filter or shut-off valve may reduce the available pressure. It is recommended to estimate the pressure losses in the entire heating system to ensure the water flow will be sufficient to reach the required heating capacity. -
Page 30: Primary Circulation Pump (2-Pipes Only) - Aurax Mini
Primary circulation pump (2-Pipes only) - Aurax Mini Ni 20-25 m3/h m3/h Fig. 13. Heat pump pressure losses Fig. 12. Circulation pump total pressure head m3/h Fig. 14. Available system pressure head G-30 P-209610_EN • 00... -
Page 31: Primary Circulation Pump (2-Pipe Only) - Aurax Mini
Primary circulation pump (2-pipe only) - Aurax Mini Ni 30-35-40 m3/h m3/h Fig. 15. Circulation pump total pressure head Fig. 16. Heat pump pressure losses m3/h Fig. 17. Available system pressure head G-31 P-209610_EN • 00... -
Page 32: Limits Of Operation
echnical pecificaTionS Limits of Operation Chiller mode Heat pump mode Glycol Water Supply water temperature [°C] External air temperature [°C] Water flow rate utility exchanger Chilled water temperature The nominal water flow rate refers to a temperature The minimum permissible temperature at the outlet difference between the inlet and outlet of the utility heat of the utility exchanger is 5 °C: for lower temperatures exchanger of Δt = 5 °C. -
Page 33: Correction Factors
echnical pecificaTionS Correction factors Operating limits Cooling Heating Heating recovery 9 °C 35 °C 20°C* 65 °C 20°C* 65 °C Inlet water temp. Outlet water temp. 6 °C 27 °C 25 °C 70 °C 25 °C 70 °C Air ambient temperature 8 °C 50 °C -25 °C... -
Page 34: Water Quality Guidelines For Air-To-Water Heat Pumps
echnical pecificaTionS Water Quality Guidelines for Air-to-Water Heat Pumps To ensure optimal performance and longevity of an air-to-water heat pump system, it is crucial to follow these water quality recommendations: Recommended Water Quality Parameters: PH ......................7-9,5 Oxigen O2 ................5-10 mg/l Electrical conductivity ........ -
Page 35: Safety Instructions For The User
nstructIons for the Safety Instructions for the User ▶ Do not modify any part of the electrical system or access in- ▶ This appliance is not intended for use by ternal components. persons (including children) with reduced ▶ Do not touch the appliance with any wet physical, sensory or mental capabilities, or body parts when the appliance is sup- lack of experience and knowledge, unless... -
Page 36: Operating The Controller - End User Level
nstructIons for the Operating the Controller - End User Level For the meaning of the icons and functions displayed on the screen, refer to “Symbols and Functions on the Control Panel” on page G-16. Turning On and Off Depress: Stand-by 00:00 01/01/2014 T6 ( ) to turn on in Heating mode... -
Page 37: Definition Of Setpoints - Set Function
SERVICE CIRC. î Active : cannot be reset because it is still active î Password : no access for the end-user. Please contact your installer/AIC representative î Reset : alarm is not active and can be removed as follows :... -
Page 38: Setting The Time And Date
nstructIons for the Setting the Time and Date Depress: Unit ON: Heating 00:00 01/01/2014 T7 ( ) to access the Service screen Evaporator inlet temperature 28.4 °C Evaporator outlet temperature 27.0 °C External air temp. (FC) °C 31.8 San. water temperature N.C. -
Page 39: Control Panel Screen And Language Setup
nstructIons for the Control panel screen and Language Setup Depress: Unit ON: Heating 00:00 01/01/2014 T7 ( ) to access the Service screen Evaporator inlet temperature 28.4 °C Evaporator outlet temperature °C 27.0 External air temp. (FC) °C 31.8 San. water temperature N.C. -
Page 40: Safety Instructions For The Installation
roduct nstallatIon Safety Instructions for the Installation î The unit is designed for out- door installation. î Do not install the unit in the vicinity of î All connections must be carried out in trees or under an overhang. accordance with current standards and î... -
Page 41: Handling The Unit
roduct nstallatIon Handling the Unit ▶ The units transmit a low level of vi- ▶ This unit is very heavy and requires bration to the ground; however, it is adequate means of handling and advisable to interpose antivibration transport. Make sure to comply mounts between the base frame and with applicable local standards the ground plane. -
Page 42: Installing And Preparing The Unit
roduct nstallatIon roduct nstallatIon Installing antivibrating dampers Installing and Preparing the Unit Safety requirements : Safety requirements : To avoid the transmission of vibrations, it is Caution : Heat exchanger fins recommended to install antivibration damp- ers on the feet of the unit. Make sure to comply with the recommend- ed clearances for the unit installation, refer to “Location of the unit”... -
Page 43: Opening And Closing The Panels
roduct nstallatIon Opening and Closing the Panels Conditions: Follow on tasks: none Tools and Material: î Wrench, flat, size 10 Removal Procedure: Front panel and Electronic board Using a wrench, remove the screws (1) around the front panel. Retain for reinstallation. Lift and remove the front panel. -
Page 44: Safety Instructions For The Hydraulic Connections
roduct nstallatIon Safety Instructions for the Hydraulic Connections Primary Circuit Safety Instructions for the Primary Circuit The use of antifreeze in the primary ▷ circuit will lead to a reduction in the heating performance. The higher Make sure that the circuit is provided with the concentration of antifreeze in a safety pressure relief valve (PRV) and an the circuit, the lower the perfor-... -
Page 45: Domestic Hot Water Circuit
roduct nstallatIon Domestic Hot Water Circuit Safety Instructions for the DHW Circuit ▶ Make sure that the circuit is provided The installation of an expansion ▶ with a safety group. vessel in the DHW circuit is rec- ommended to prevent the water The hot water produced in the cir- ▶... -
Page 46: Requirements For The Hydraulic Connections
roduct nstallatIon Requirements for the Hydraulic Connections To lenghten the life of the unit and hydraulic circuits, Restarting the unit after a long peri- the following equipment is recommended to be od, verify the circulation pump is op- installed: erating, if it is installed. If the pump is î... -
Page 47: Typical Hydraulic Connections - Primary
roduct nstallatIon Typical Hydraulic Connections - Primary Pipelines must be carefully sized according to the All hydraulic connections must be insulated with unit’s nominal water flow rate and the pressure closed-cell material of adequate thickness. drop in the hydraulic circuit. The unit must be connected to the pipeline using The liquid velocity should be kept below 2 m/s. -
Page 48: System For The Production Of Dhw / Heating / Cooling
roduct nstallatIon System for the Production of DHW / Heating / Cooling 2 - Pipe system and stops of the compressors, which adds to the The system uses water stored in the accumulation system longevity. In summer, when the user requires (AC) buffer tank. - Page 49 The heat pump has to be connected to the AC buffer tank. This is required to guarantee the correct operation of the unit, avoiding frequent start and stops of the compressors. Please contact your AIC representative for correct sizing of the AC buffer tank.
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Page 50: Safety Instructions For The Electrical Connections
roduct nstallatIon Safety Instructions for the Electrical Connections ▶ When the unit is connected to the electrical network, it must be earthed. ▶ Make sure that a fuse or circuit breaker of Electrical connections must be carried the recommended rating is installed out- out by a qualifi ed professional in accord- side the unit, to allow electrical isolation. -
Page 51: Description
roduct nstallatIon Terminal block connections TERMINAL CABLE Description TYPE PINS STATUS BLOCK TYPE AC water tank temperature Signal - NTC10K 396-397 AC water pump alarm (optional) DI - Dry contact 56-57 Open= alarm DHW TAnk temperature probe for 2 pipe Signal - NTC10K 417-418 system... -
Page 52: Installing A Remote Control Panel
roduct nstallatIon Installing a Remote Control Panel î Special care must be taken when connecting the keyboard to the controller, in order to avoid irreparable damage to the PCB and/or control panel. î In case of power supply failure, the control panel will not work. î... -
Page 53: Refrigerant Circuit Layout
roduct nstallatIon Refrigerant Circuit Layout 2 - Pipe system This version uses 2 hydraulic connections and is capable to produce hot water in the winter period, cold water in the summer period, and domestic hot water throughout the year. The unit should be combined with a 2-pipe system and connected to an external 3-way valve (not supplied) for priority domestic hot water production. - Page 54 roduct nstallatIon 4 - Pipe system This version uses 4 hydraulic connections and is 4-pipe system has additional plate heat exchanger in capable to produce hot water in the winter period, cold refrigeration circuit which can produce simultenously water in the summer period, and domestic hot water cold water for air conditioning and DHW.
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Page 55: Ommissioning
ommIssIonInG Safety Instructions Before Start-up Filling the System Conditions: Procedure: Connect water supply to the filling valve. Check that all connections (electrical, hy- draulic) have been carried out and that Open all system manual air vents. they are tight and secure. ▶... -
Page 56: Installing A Flow Switch
dditionAl nformAtion for the nstAller Installing a flow switch Conditions: Safety requirements: Tools and Material: î 2 nylon gaskets î 2x adjustable wrench; All units are supplied with a set of a pad- dle flow switch mounted in a tee con- nection, which should be installed on the return pipe to the heat pump labelled 'Water inlet". - Page 57 dditionAl nformAtion for the nstAller Procedure: Ensure a straight return pipe section (1) upstream a dedicated terminal of the connector (6). The of the flow switch (2), with a minimum length order of connection does not matter. Make sure of the equivalent of 5 times the internal pipe that appropriate length of insulation is removed diameter.
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Page 58: Start-Up And Commissioning
ommissioning Start-up and Commissioning Press the key corresponding to the Heating ( ) or Conditions: Cooling ( ) mode located on the control panel. The corresponding icon will appear on the î All initial checks have been carried out. Refer to screen. -
Page 59: Safety Requirements For Maintenance
Perform all recommended tasks and required for the procedure (it will complete the logbook available from then be indicated in the procedure). your AIC technical representative with Do not touch the unit with any wet body ▶ all the required information. -
Page 60: Maintenance Requirements
Maintenance Requirements To perform maintenance, connect to the aicON application and fill in all the relevant information. Re- fer to the back cover of the manual for easy access. Please contact your AIC representative for more information about this app. -
Page 61: Specific Maintenance Tasks
aintenance Specific Maintenance Tasks Months* Years Tasks Electrical System Check that the unit works properly and that there are no active warnings Visually inspect the unit Check noise and vibration level of the unit Check operation of safety features and interblocks Check the unit’s performance Check the current draws of the different parts (compressors, fans, pumps, etc.) - Page 62 aintenance Safety requirements: Months Years Tasks Compressors Visually inspect the compressors Check the supply voltage of the compressors Check the compressors' electrical connections Check oil level in the compressors using the oil fill level indicator Check that the crankcase heaters are powered and working properly Check the conditions of the compressors' power cables and their tightness in the clamps Check the electrical absorption of individual compressors.
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Page 63: Safety Requirements For Repairing Of The Refrigerant Circuit
aintenance Safety requirements for repairing of the refrigerant circuit Discharge refrigerant circuit. Refer “Discharging the refrigerant circuit” on page I-65. ▶ The heat pump contains propane - a Purge the empty refrigerant circuit with nitrogen highly flammable refrigerant. Special gas for 5 min care should be taken during handling, Parts to be replaced should be removed by installation, service, cleaning and... -
Page 64: Draining Oil From Compressors
aintenance Draining oil from compressors Safety requirements: ▶ Make sure that the power supply to the Caution : unit is deactivated. Conditions: Follow on tasks: Dispose the oil. Refer to “Disposal of the Product at the End of Service Life” on page G-35. î... -
Page 65: Discharging Of Refrigerant
aintenance Discharging of refrigerant operation is finished. It should turn off automatically after discharging is complete done. It may be î Tools and measuring devices that may come necessary to wait a few minutes and repeat this into contact with the refrigerant or its mixture step, as any remaining of refrigerant may dissolve with air must not cause ignition. -
Page 66: Checking Tightness Of The Refrigerant Circuit
aintenance Checking tightness of the refrigerant circuit Before starting checking tightness, perform discharging refrigerant procedure. Refer to “Discharging the Refrigerant” on page I-65. Safety requirements: Follow-on Task(s): If charging the refrigerant is required, refer to “Charging the Refrigerant” on page I-67. Caution : Conditions: ▶... -
Page 67: Charging Of Refrigerant
aintenance Charging of refrigerant Safety requirements: Caution : Conditions: ▶ Make sure a leak test with nitro- gen gas has been performed be- fore charging and the refrigerant system is tight. Otherwise, refer to “Checking tightness of the re- frigerant circuit” on page I-65. Follow-on Task(s): None Tools and material : - î... -
Page 68: Decommissioning
aintenance Decommissioning The decommissioning of the unit and its components must be carried out by a qualified professionals. The refrigerant charge shall be removed before decommissioning. Refer to “Discharging Refrigerant” on page I-65. Safety requirements: Caution : Conditions: Tools and material: ▶... -
Page 69: Operation Modes
°C 6-27 Domestic hot water mode ( Password (Contact AIC) At the first start up, the unit controller checks the domestic hot water inlet temperature measured by the sensor BTS (this has priority over the other parameters) All set points refered to the delivered tempera- and, if the measured temperature is lower than the ture (unit outlet). -
Page 70: Operation Of The Control Panel - Engineer Level
Controller - End User Level” on page î In some cases, a password is required to access setup or reset functions. Please con- tact your AIC representative for more information. Reading System Data - CIRC Function Depress: Unit ON: Heating... -
Page 71: Reading System Data - Probes Function
dditionAl nformAtion for the nstAller Reading System Data - PROBES Function Depress: Unit ON: Heating 00:00 01/01/2014 T2 ( ) to read the data collected through the Evaporator inlet temperature 28.4 °C sensors installed in the system. Evaporator outlet temperature 27.0 °C External air temp. - Page 72 dditionAl nformAtion for the nstAller Setting the Service Parameters ( 1st level password (Pr1) ALARM EXIT Depress: T1 ( ) and T6 ( ) simultaneously to set password to “1”. T6 ( ) to confirm 1st level password (Pr1) T7 ( ) to access the parameter selection screen.
- Page 73 dditionAl nformAtion for the nstAller Parameter groups Label Meaning Display temperature control parameters Display variables to be shown on the keyboard Display configuration parameters Display parameters for machine set up Display dynamic set-point parameters Display energy saving and automatic timed switch-on/off parameters Display auxiliary heating parameters Display compressor parameters...
- Page 74 dditionAl nformAtion for the nstAller Service Parameters - Dynamic Set Points Depress: T1 ( ) / T2 ( ) to scroll through the functions. and select “Sd” T7 ( ) to access the Dynamic Set Point screen and access the following functions: î...
- Page 75 dditionAl nformAtion for the nstAller Service Parameters - Energy Saving mode Depress: Parameter group selection T1 ( ) / T2 ( ) to scroll through the functions. and select “ES” T7 ( ) to access the Energy Saving screen. Energy Saving ALARM ENTER EXIT This function allows to set the system in two different...
- Page 76 dditionAl nformAtion for the nstAller Parameter Meaning Resolution code ES13 Sunday with energy saving time band -50.0 °C ES14 Increase energy saving setting in chiller mode °F 25.0 °C ES15 Energy saving differential in chiller mode °F -50.0 °C Increased energy saving set in heat pump ES16 operation °F...
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Page 77: Compressor Maintenance
) to read the info about the Energy saving, ON/OFF scheduling and time bands on other : 07 screens. Any modification is subjected to an access 05 / 7 / 14 password. Please contact your AIC representative ALARM EXIT T8 ( ) to exit the menu... - Page 78 dditionAl nformAtion for the nstAller Water Pump ( Depress: T1 ( ) / T2 ( ) to scroll through the lines and display the water pumps working hours T7 ( ) to reset the counter. The Reset function can only be used by ALARM RESET EXIT...
- Page 79 dditionAl nformAtion for the nstAller Defrost ( Depress: T1 ( ) / T2 ( ) to scroll through the lines T7 ( ) to access the Defrost status screen of 45 : 0 the selected circuit. ALARM ENTER EXIT Depress: T4 ( ) /T5 ( ) to scroll through the pages and...
- Page 80 dditionAl nformAtion for the nstAller Sanitary Water ( Depress: Sanitary water: T1 ( ) / T2 ( ) to scroll through the lines Sanitary water temp. 44.9 °C T7 ( ) to access the Sanitary water regulation Sanitary water Set point 50.0 °C parameters.
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Page 81: Troubleshooting
Code Alarm Description Cause Solution ACF1 Change paramaters to correct Configuration of parameters is Configuration alarm values, contact AIC representative wrong if necesary. ACF19 Look for clogs in circuit, check No water flow in evaporator AEFL Evaporator flow alarm water flow sensor, check water circuit pump performance. - Page 82 dditionAl nformAtion for the nstAller Incorrect parameter Correct parameters regarding AfnA Function not available alarm configuration regarding setpoints, delta, and compressor functionality relays Circuit alarm Code Alarm Description Cause Solution Check if water filter is clean Anti-freeze alarm of the circuit Low water outlet temperature in b(n)AC Check if outlet water temperature...
- Page 83 dditionAl nformAtion for the nstAller Compressor alarm Code Alarm Description Cause Solution Check refrigerant charge and working pressures. Compressor load exeeded C(n)tr Compressor (n) overload Check voltages and compressor nominal values current draw on all phase conductors. Check if fan is working. Check coil for dirt and debris.
- Page 84 dditionAl nformAtion for the nstAller Maximum number of low pressure events from digital/analogue inputs in one hour, with automatic reset 30 s Evaporator Flow alarm delay from digital input after water Evapor. Flow alarm delay from digital input with unit working -10 °C Anti-freeze alarm chiller setpoint 2 °C...
- Page 85 Clean finned coil surface from any minimum debris Reverse cycle valve malfunction Unit does not switch between Contact AIC representative winter and summer mode Thermostat malfunction Check if the unit is supplied with Unit power failure power, check if the main isolator The room temperature does is switched on.
- Page 86 Connect to aicON on your computer or install the app on your smartphone or tablet to: î Register your product î Complete installation data î Complete commissioning data î Complete maintenance data î Order spare parts î and more... https://tracker.aicon.myaic.eu/ dashboard/login AIC Europe B.V. Graafschap Hornelaan 163A NL-6001 AC Weert The Netherlands www.myaic.eu...
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