Daikin LRNUN5A Y1 Series Installer's Reference Manual
Co2 conveni-pack outdoor unit and capacity up unit
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- Installation and operation manual (56 pages) ,
- Installation and operation manual (52 pages) ,
- Installer's reference manual (160 pages)
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Summary of Contents for Daikin LRNUN5A Y1 Series
- Page 1 Installer and user reference guide CO₂ Conveni-Pack outdoor unit and capacity up unit LRYEN10A▲Y1▼ LRNUN5A▲Y1▼ ▲= 1, 2, 3, …, 9 ▼= , , 1, 2, 3, …, 9...
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Page 2: Table Of Contents
Table of contents Table of contents 1 About the documentation About this document..............................2 General safety precautions About the documentation.............................. 2.1.1 Meaning of warnings and symbols........................ For the installer ................................2.2.1 General................................2.2.2 Installation site............................... 2.2.3 Refrigerant — in case of R744........................2.2.4 Electrical................................. - Page 3 Table of contents 14.1 Preparing the installation site ............................14.1.1 Installation site requirements of the outdoor unit ..................14.1.2 Additional installation site requirements of the outdoor unit in cold climates ........... 14.1.3 Additional installation site requirements for CO₂ refrigerant ..............14.2 Opening and closing the unit ............................
- Page 4 Table of contents 17.5 To charge refrigerant ..............................124 17.6 To fix the refrigerant charge label ..........................124 18 Finishing the outdoor unit installation 18.1 To check the insulation resistance of the compressor....................126 19 Configuration 19.1 Making field settings ..............................127 19.1.1 About making field settings ...........................
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Page 5: About The Documentation
A subset of the latest technical data is available on the regional Daikin website (publicly accessible). ▪ The full set of the latest technical data is available on the Daikin Business Portal (authentication required). LRYEN10 + LRNUN5A Installer and user reference guide CO₂... -
Page 6: General Safety Precautions
General safety precautions 2 General safety precautions 2.1 About the documentation ▪ The original instructions are written in English. All other languages are translations of the original instructions. ▪ The precautions described in this document cover very important topics, follow them carefully. -
Page 7: For The Installer
WARNING Improper installation or attachment of equipment or accessories could result in electrical shock, short-circuit, leaks, fire or other damage to the equipment. ONLY use accessories, optional equipment and spare parts made or approved by Daikin unless otherwise specified. WARNING Make sure installation, testing and applied materials comply with applicable legislation (on top of the instructions described in the Daikin documentation). -
Page 8: Installation Site
General safety precautions CAUTION Wear adequate personal protective equipment (protective gloves, safety glasses,…) when installing, maintaining or servicing the system. CAUTION Do NOT touch the air inlet or aluminium fins of the unit. CAUTION ▪ Do NOT place any objects or equipment on top of the unit. ▪... -
Page 9: Refrigerant - In Case Of R744
WARNING Make sure installation, servicing, maintenance and repair comply with instructions from Daikin and with applicable legislation (for example national gas regulation) and are executed ONLY by authorised persons. NOTICE ▪... - Page 10 General safety precautions WARNING Take sufficient precautions in case of refrigerant leakage. If refrigerant gas leaks, ventilate the area immediately. Possible risks: ▪ Carbon dioxide poisoning ▪ Asphyxiation WARNING Make sure there is no oxygen in the system. Refrigerant may ONLY be charged after performing the leak test and the vacuum drying.
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Page 11: Electrical
General safety precautions ▪ Only use tools exclusively for the refrigerant type used in the system, this to ensure pressure resistance and prevent foreign materials from entering into the system. ▪ Open refrigerant cylinders slowly. 2.2.4 Electrical DANGER: RISK OF ELECTROCUTION ▪... - Page 12 General safety precautions CAUTION ▪ When connecting the power supply: connect the earth cable first, before making the current-carrying connections. ▪ When disconnecting the power supply: disconnect the current-carrying cables first, before separating the earth connection. ▪ The length of the conductors between the power supply stress relief and the terminal block itself MUST be as such that the current-carrying wires are tautened before the earth wire is in case the power supply is pulled loose from the stress relief.
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Page 13: Specific Installer Safety Instructions
WARNING Make sure installation, servicing, maintenance, repair and applied materials follow the instructions from Daikin (including all documents listed in “Documentation set”) and, in addition, comply with applicable legislation and are performed by qualified persons only. In Europe and areas where IEC standards apply, EN/IEC 60335-2-40 is the applicable standard. - Page 14 Specific installer safety instructions "14 Unit installation" [ 57]) Unit installation (see DANGER: RISK OF BURNING/SCALDING DANGER: RISK OF ELECTROCUTION DANGER: RISK OF ELECTROCUTION Do NOT leave the unit unattended when the service cover is removed. WARNING Follow the service space dimensions in this manual to install the unit correctly. See "14.1.1 Installation site requirements of the outdoor unit" [ 58].
- Page 15 Specific installer safety instructions CAUTION Appliance NOT accessible to the general public, install it in a secured area, protected from easy access. The equipment meets the requirements for commercial and light-industrial locations when professionally installed and maintained. CAUTION This equipment is NOT intended for use in residential locations and will NOT guarantee to provide adequate protection to radio reception in such locations.
- Page 16 Specific installer safety instructions WARNING When stop valves are closed during service, the pressure of the closed circuit will increase due to high ambient temperature. Make sure the pressure is kept below the design pressure. WARNING ONLY connect the outdoor unit to showcases or blower coils with a design pressure: ▪...
- Page 17 Specific installer safety instructions WARNING Before putting the system into service, check if all field supplied components or indoor units comply with pressure test specifications of EN378-2. If you are not sure, it is recommended to perform the test below. CAUTION NEVER bend high pressure piping! Bending can reduce the pipe thickness and thus weaken the piping.
- Page 18 Specific installer safety instructions WARNING Provide adequate measures to prevent that the unit can be used as a shelter by small animals. Small animals that make contact with electrical parts can cause malfunctions, smoke or fire. WARNING ▪ If the power supply has a missing or wrong N-phase, equipment might break down.
- Page 19 Specific installer safety instructions WARNING ▪ ONLY use R744 (CO ) as refrigerant. Other substances may cause explosions and accidents. ▪ When installing, charging refrigerant, maintaining or performing service, ALWAYS use personal protective equipment, such as safety shoes, safety gloves and safety glasses.
- Page 20 Specific installer safety instructions DANGER: RISK OF BURNING/SCALDING WARNING Commissioning MUST be in accordance with the instructions from this manual. See "20 Commissioning" [ 132]. CAUTION Do NOT perform the test operation while working on the indoor unit(s). When performing the test operation, NOT ONLY the outdoor unit, but the connected indoor unit will operate as well.
- Page 21 Specific installer safety instructions CAUTION It is mandatory to open expansion valve Y1E while releasing refrigerant. If not open, refrigerant will remain inside the unit. Troubleshooting (see "23 Troubleshooting" [ 143]) DANGER: RISK OF ELECTROCUTION DANGER: RISK OF BURNING/SCALDING WARNING ▪ When carrying out an inspection on the switch box of the unit, ALWAYS make sure that the unit is disconnected from the mains.
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Page 22: For The User
For the user LRYEN10 + LRNUN5A Installer and user reference guide CO₂ Conveni-Pack outdoor unit and capacity up unit 4P605460-1B – 2024.12... -
Page 23: User Safety Instructions
User safety instructions 4 User safety instructions Always observe the following safety instructions and regulations. 4.1 General WARNING If you are NOT sure how to operate the unit, contact your installer. WARNING This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning... -
Page 24: Instructions For Safe Operation
User safety instructions ▪ Units are marked with the following symbol: This means that electrical and electronic products may NOT be mixed with unsorted household waste. Do NOT try to dismantle the system yourself: dismantling the system, treatment of the refrigerant, of oil and of other parts MUST be done by an authorised installer and MUST comply with applicable legislation. - Page 25 User safety instructions WARNING NEVER use a flammable spray such as hair spray, lacquer or paint near the unit. It may cause a fire. CAUTION If this unit is installed indoors, it must ALWAYS be equipped with an electrically powered safety measure such as a CO refrigerant leak detector (field supply).
- Page 26 User safety instructions "5 About the system" [ 29]) About the system (see WARNING Do NOT modify, disassemble, remove, reinstall or repair the unit yourself as incorrect dismantling or installation may cause an electrical shock or fire. Contact your dealer. Maintenance and service (see "8 Maintenance and service" [ 33])
- Page 27 User safety instructions WARNING ▪ Do NOT pierce or burn refrigerant cycle parts. ▪ Be aware that the refrigerant inside the system is odourless. WARNING The R744 refrigerant (CO ) inside the unit is odourless, non-flammable and normally does NOT leak. If the unit is installed indoors, ALWAYS install a CO detector according to the specifications of standard EN378.
- Page 28 User safety instructions "9 Troubleshooting" [ 36]) Troubleshooting (see WARNING Stop operation and shut OFF the power if anything unusual occurs (burning smells etc.). Leaving the unit running under such circumstances may cause breakage, electrical shock or fire. Contact your dealer. LRYEN10 + LRNUN5A Installer and user reference guide CO₂...
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Page 29: About The System
About the system 5 About the system The indoor units can be used for heating/cooling and refrigerating applications. The type of indoor units which can be used depends on the outdoor units series. WARNING Do NOT modify, disassemble, remove, reinstall or repair the unit yourself as incorrect dismantling or installation may cause an electrical shock or fire. -
Page 30: System Layout
About the system 5.1 System layout INFORMATION The following figure is an example and may NOT completely match your system layout. a Main outdoor unit (LRYEN10*) b Capacity up unit (LRNUN5*) c Communication box (BRR9B1V1) d Indoor unit for air conditioning (field supply) e Indoor unit for refrigeration (showcase) (field supply) f Indoor unit for refrigeration (blower coil) (field supply) g Safety valve (field supply) -
Page 31: Operation
Operation 6 Operation 6.1 Operation modes The following operation modes are possible: ▪ Refrigeration only ▪ Cooling only ▪ Cooling and refrigeration ▪ Heating and refrigeration: With fully heat recovery With outdoor heat exchanger as gas cooler With outdoor heat exchanger as evaporator ▪... -
Page 32: Energy Saving And Optimum Operation
Energy saving and optimum operation 7 Energy saving and optimum operation Observe the following precautions to ensure the system operates properly. ▪ Adjust the air outlet properly and avoid direct air flow to room inhabitants. ▪ Adjust the room temperature properly for a comfortable environment. Avoid excessive heating or cooling. -
Page 33: Maintenance And Service
Maintenance and service 8 Maintenance and service WARNING NEVER replace a fuse with a fuse of a wrong ampere ratings or other wires when a fuse blows out. Use of wire or copper wire may cause the unit to break down or cause a fire. -
Page 34: Maintenance After A Long Stop Period
Maintenance and service 8.2 Maintenance after a long stop period E.g., at the beginning of the season. ▪ Check and remove everything that might be blocking inlet and outlet vents of indoor units and outdoor units. ▪ Clean air filters and casings of indoor units. Contact your installer or maintenance person to clean air filters and casings of the indoor unit. - Page 35 Maintenance and service ▪ The installation date. ▪ The symptoms or malfunction, and details of the defect. WARNING Do NOT modify, disassemble, remove, reinstall or repair the unit yourself as incorrect dismantling or installation may cause an electrical shock or fire. Contact your dealer. LRYEN10 + LRNUN5A Installer and user reference guide CO₂...
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Page 36: Troubleshooting
Troubleshooting 9 Troubleshooting If system malfunctions are likely to degrade the articles in the room/showcase, you can ask your installer to install an alarm (example: lamp). For more information, contact your installer. If one of the following malfunctions occurs, take the measures shown below and contact your dealer. - Page 37 Troubleshooting Malfunction Measure The system operates but ▪ Check if air inlet or outlet of outdoor or indoor cooling or heating is unit is not blocked by obstacles. Remove any insufficient. obstacles and make sure the air can flow freely. (for air conditioner indoor ▪...
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Page 38: Error Codes: Overview
Troubleshooting 9.1 Error codes: Overview In case a malfunction code appears on the indoor unit user interface display, contact your installer and inform the malfunction code, the unit type, and serial number (you can find this information on the nameplate of the unit). For your reference, a list with malfunction codes is provided. -
Page 39: Relocation
Relocation 10 Relocation Contact your dealer to remove and reinstall the entire unit. Moving units requires technical expertise. LRYEN10 + LRNUN5A Installer and user reference guide CO₂ Conveni-Pack outdoor unit and capacity up unit 4P605460-1B – 2024.12... -
Page 40: Disposal
Disposal 11 Disposal NOTICE Do NOT try to dismantle the system yourself: dismantling of the system, treatment of the refrigerant, oil and other parts MUST comply with applicable legislation. Units MUST be treated at a specialised treatment facility for reuse, recycling and recovery. LRYEN10 + LRNUN5A Installer and user reference guide CO₂... -
Page 41: For The Installer
For the installer LRYEN10 + LRNUN5A Installer and user reference guide CO₂ Conveni-Pack outdoor unit and capacity up unit 4P605460-1B – 2024.12... -
Page 42: About The Box
About the box 12 About the box Keep the following in mind: ▪ At delivery, the unit MUST be checked for damage and completeness. Any damage or missing parts MUST be reported immediately to the claims agent of the carrier. ▪... -
Page 43: To Unpack The Outdoor Unit
About the box 12.1.2 To unpack the outdoor unit 1 Remove the packaging material from the unit. ▪ Remove the shrink foil. Take care not to damage the unit when removing the shrink foil with a cutter. a Outdoor unit b Capacity up unit ▪... -
Page 44: To Handle The Outdoor Unit
About the box 12.1.3 To handle the outdoor unit CAUTION To avoid injury, do NOT touch the air inlet or aluminium fins of the unit. 1 Unpack the outdoor unit and capacity up unit. See also "12.1.2 To unpack the outdoor unit" [ 43]. -
Page 45: To Remove The Accessories From The Outdoor Unit
About the box Outdoor unit 4 Lift the capacity up unit with a crane and 2 belts of at least 8 m long as shown in the figure below. Always use protectors to prevent belt damage and pay attention to the centre of gravity of the unit. NOTICE ▪... - Page 46 About the box Capacity up unit a Declaration of conformity LRYEN10 + LRNUN5A Installer and user reference guide CO₂ Conveni-Pack outdoor unit and capacity up unit 4P605460-1B – 2024.12...
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Page 47: About The Units And Options
About the units and options 13 About the units and options In this chapter 13.1 Identification................................... 13.1.1 Identification label: Outdoor unit .......................... 13.2 About the outdoor unit ................................13.2.1 Labels on outdoor unit............................13.3 System layout..................................13.4 Combining units and options ..............................13.4.1 Possible combinations of indoor units ........................ -
Page 48: About The Outdoor Unit
About the units and options Capacity up unit: LR NU N 5 A7 Y1: Subcooler unit Refrigerant: R744 (CO Capacity indication in HP Model series Power supply (3~ / 50 Hz / 380~415 V) 13.2 About the outdoor unit This installation manual concerns the outdoor unit and the optional capacity up unit. -
Page 49: Labels On Outdoor Unit
About the units and options 13.2.1 Labels on outdoor unit Label about flow directions Text on caution label Translation from LRYEN10A7Y1 or LREN12A7Y1B to From LRYEN10A7Y1 or LREN12A7Y1B to Refrigeration Refrigeration Gas for Airco Gas for Airco Liquid for Airco Liquid for Airco Gas from Refrigeration Gas from Refrigeration... - Page 50 About the units and options Text on warning label Translation If refrigerant temperature is higher than If refrigerant temperature is higher than 31°C there is a possibility that the safety 31°C there is a possibility that the safety valve will open during service or power valve will open during service or power shutdown.
- Page 51 About the units and options CAUTION WARNING ELECTRIC SHOCK CAUTION Caution when servicing the switch box 1. Before obtaining access to terminal devices, all supply circuits must be interrupted because units at standstill may be in a pre-heating mode and start automatically. 2.
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Page 52: System Layout
About the units and options Text on warning label Translation 1. Before obtaining access to terminal 1. Before obtaining access to terminal devices, all supply circuits must be devices, all supply circuits must be interrupted because units at standstill interrupted because units at standstill may be in a pre-heating mode and start may be in a pre-heating mode and start automatically. -
Page 53: Combining Units And Options
About the units and options a Main outdoor unit (LRYEN10*) b Capacity up unit (LRNUN5*) c Communication box (BRR9B1V1) d Indoor unit for air conditioning (field supply) e Indoor unit for refrigeration (showcase) (field supply) f Indoor unit for refrigeration (blower coil) (field supply) g Safety valve (field supply) h CO control panel (field supply) -
Page 54: Possible Options For The Outdoor Unit
About the units and options 13.4.2 Possible options for the outdoor unit INFORMATION Refer to the technical engineering data for the latest option names. Refrigerant T-joints Allowed Not allowed Refrigerant unit T-joints Refnet joints and headers (branch kits) Air conditioning unit T-joints Refnet joints and headers (branch kits) -
Page 55: Constraints For Refrigeration
About the units and options Restrictions Keep the following restrictions in mind when you connect indoor units: Restriction Minimum/maximum Minimum air conditioning total capacity class Maximum air conditioning total capacity class Maximum indoor units that can be ≤4 connected For more information about the possible combinations, see "13.4 Combining units options" [ 53]. - Page 56 About the units and options Restriction Usage range or value Defrosting of refrigeration side Simultaneous defrost Field setting components "DIP switches" [ 128] LRYEN10 + LRNUN5A Installer and user reference guide CO₂ Conveni-Pack outdoor unit and capacity up unit 4P605460-1B – 2024.12...
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Page 57: Unit Installation
Unit installation 14 Unit installation WARNING ▪ Make sure to install all necessary countermeasures in case of refrigerant leakage according to standard EN378 (see "14.1.3 Additional installation site requirements for CO₂ refrigerant" [ 62]). ▪ Make sure to install a CO leak detector (field supply) in every room with refrigerant piping, air conditioning units, showcases or blower coils, and enable the function for refrigerant leak detection (see the installation manual of the... -
Page 58: Preparing The Installation Site
Unit installation 14.3.3 To provide the installation structure ........................14.3.4 To install the outdoor unit ............................. 14.3.5 To provide drainage ............................... 14.1 Preparing the installation site Choose an installation location with sufficient space to transport the unit in and out of the site. Do NOT install the unit in places often used as work place. - Page 59 Unit installation ▪ Heat exchanger fins are sharp and injury is possible. Choose an installation location where there is no risk for injury (especially in areas where children play). Refrigerant and ventilation CAUTION Excessive concentrations of refrigerant R744 (CO ) in a closed room can lead to unconsciousness and oxygen deficiency.
- Page 60 Unit installation a Sea wind b Building c Outdoor unit d Windbreaker Sound, electronic noise and electromagnetic disturbance ▪ Select the location of the unit in such a way that the sound generated by the unit does not disturb anyone, and the location is selected according the applicable legislation.
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Page 61: Additional Installation Site Requirements Of The Outdoor Unit In Cold Climates
Unit installation To avoid Do NOT install the unit in the following places: ▪ Sound sensitive areas (e.g. near a bedroom), so that the operation noise will cause no trouble. Note: If the sound is measured under actual installation conditions, the measured value might be higher than the sound pressure level mentioned in Sound spectrum in the data book due to environmental noise and sound reflections. -
Page 62: Additional Installation Site Requirements For Co₂ Refrigerant
Unit installation 14.1.3 Additional installation site requirements for CO₂ refrigerant NOTICE Although it is recommended to install LRYEN10* and LRNUN5* outdoors, in some cases it might be needed to install them inside. In such cases, ALWAYS follow the indoor installation site requirements for CO refrigerant. - Page 63 Unit installation 14‒1 Description of access categories Access category Description Examples General access Rooms, parts of buildings, buildings Hospitals, courts or prisons, theatres, where: supermarkets, schools, lecture halls, public transport terminals, hotels, restaurants. ▪ sleeping facilities are provided; ▪ people restricted their movements;...
- Page 64 Unit installation ▪ safety shut-off valves ▪ safety alarm, in combination with a CO refrigerant leak detector (a safety alarm alone is NOT considered an appropriate measure where occupants are restricted in their movements) ▪ refrigerant leak detector WARNING Install the unit ONLY in locations where the doors of the occupied space are NOT tight fitting.
- Page 65 Unit installation For occupancies on the lowest underground floor of the building If the total refrigerant charge (kg) …the number of appropriate measures divided by the room volume ) is… must be at least… <RCL >RCL and ≤QLMV >QLMV and <QLAV >QLAV Value CANNOT be exceeded! For occupied spaces with a floor area exceeding 250 m...
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Page 66: Opening And Closing The Unit
Unit installation ▪ If the airflow to a space cannot be reduced to less than 10% of the maximum airflow using an airflow reducer, then that space shall be included in the volume of the smallest human occupied space. ▪ For refrigerants of safety class A1, the total volume of all the rooms cooled or heated by air from one system is used as the volume for calculation, if the air supply to each room cannot be restricted below 25% of its full supply. -
Page 67: To Open The Switch Box Of The Outdoor Unit
Unit installation DANGER: RISK OF BURNING/SCALDING 1 Remove the screws of the small front plates. 3× 8× a Outdoor unit b Capacity up unit 2 Remove the front panels. 4× × a Outdoor unit b Capacity up unit 3 Remove the small front plates of each removed front panel. 2×... -
Page 68: To Close The Outdoor Unit
Unit installation Switch boxes of the outdoor unit The switch boxes behind the left, middle and right front panel are all opened in the same way. The main switchbox is installed behind the middle panel. × Switch box of the capacity up unit 4×... -
Page 69: Mounting The Outdoor Unit
Unit installation 4× × × a Outdoor unit b Capacity up unit 3 Attach the small front plates to the front panels. 3× 8× a Outdoor unit b Capacity up unit 14.3 Mounting the outdoor unit 14.3.1 About mounting the outdoor unit Typical workflow Mounting the outdoor unit typically consists of the following stages: Providing the installation structure. - Page 70 Unit installation NOTICE The height of the foundation must at least be 150 mm from the floor. In heavy snowfall areas, this height should be increased up to the average expected snow level, depending on the installation place and condition. Outdoor unit Capacity up unit ▪...
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Page 71: To Install The Outdoor Unit
Unit installation ≥765 ≥765 (mm) Minimum foundation 1 LRYEN10* 2 LRNUN5* Unit LRYEN10* 1940 1102 LRNUN5* — 14.3.4 To install the outdoor unit 1 Position the unit onto the installation structure. See also: "12.1.3 To handle the outdoor unit" [ 44]. 2 Fix the unit onto the installation structure. -
Page 72: Piping Installation
Piping installation 15 Piping installation In this chapter 15.1 Preparing refrigerant piping ..............................15.1.1 Refrigerant piping requirements ........................... 15.1.2 Refrigerant piping material............................ 15.1.3 Refrigerant piping length and height difference....................15.1.4 To select the piping size............................15.1.5 To select refrigerant branch kits..........................15.1.6 To select expansion valves for refrigeration ...................... -
Page 73: Refrigerant Piping Material
Piping installation NOTICE The piping and other pressure-containing parts shall be suitable for refrigerant and oil. Use K65 (or equivalent) copper-iron alloy tube system for high-pressure applications with a working pressure of 120 bar gauge at the air conditioner side and 90 bar gauge at the refrigeration side. -
Page 74: Refrigerant Piping Length And Height Difference
Piping installation 15.1.3 Refrigerant piping length and height difference Requirements and limits The piping lengths and height differences must comply with the following requirements. For an example, see "15.1.4 To select the piping size" [ 76]. Requirement Limit LRYEN10* LRYEN10* + LRNUN5* Maximum piping length ▪... - Page 75 Piping installation Requirement Limit LRYEN10* LRYEN10* + LRNUN5* Maximum height difference between 5 m blower coil and showcase ▪ Example: H3≤Limit Maximum height difference between 0.5 m air conditioners ▪ Example: H1≤Limit Whichever is longer For low load restrictions, see "13.5.2 Constraints for refrigeration" [ 55].
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Page 76: To Select The Piping Size
Piping installation a Refrigeration indoor unit b Riser piping close to the indoor unit (gas pipe) c Oil trap 15.1.4 To select the piping size Determine the proper size using the following tables and reference figure (only for indication). 1 Capacity up unit (LRNUN5*) 2 Outdoor unit (LRYEN10*) 3 Indoor unit (showcase) 4 Indoor unit (blower coil) -
Page 77: Indoor Unit
Piping installation Piping size between outdoor unit and first branch System side Piping outer diameter size (mm) Liquid side Gas side Refrigeration Ø12.7×t0.85 Ø15.9×t1.05 Air conditioner Ø15.9×t1.05 Ø19.1×t1.30 For refrigeration piping (A, B, a) and for air conditioner piping (A2, a2) For low load restrictions, see "13.5.2 Constraints for refrigeration" [... -
Page 78: To Select Refrigerant Branch Kits
Piping installation 15.1.5 To select refrigerant branch kits Always use K65 T-joints with a suitable design pressure for refrigerant branching. 15.1.6 To select expansion valves for refrigeration The system controls liquid temperature and liquid pressure. Select the expansion valves as indicated according to nominal conditions and design pressure. Nominal conditions The following nominal conditions are valid for the liquid piping at the outlet of the outdoor unit. -
Page 79: Using Stop Valves And Service Ports
Piping installation 15.2 Using stop valves and service ports For more information about the card on the unit, see "Card about stop valves and service ports" [ 50]. WARNING When stop valves are closed during service, the pressure of the closed circuit will increase due to high ambient temperature. - Page 80 Piping installation Units till serial number 3999999 a Stop valve for maintenance Units from serial number 4000000 a Stop valve for maintenance INFORMATION Serial number, see MFG.NO on the nameplate of the unit. LRYEN10 + LRNUN5A Installer and user reference guide CO₂...
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Page 81: To Handle The Stop Valve
Piping installation 15.2.3 To handle the stop valve Take the following guidelines into account: ▪ The gas and liquid stop valves are factory closed. ▪ Make sure to keep all stop valves open during operation. ▪ Do NOT apply excessive force to the stop valve. Doing so may break the valve body. - Page 82 Piping installation 15‒4 Ball stop valve: intersection a Stop valve cap b Ball + stem and handle To open the stop valve Screw stop valve 1 Remove the valve cap with 2 spanners. 2 Loosen the packing holder by rotating counterclockwise from 1/8 to 1/2 turn. 3 Turn the valve stem counterclockwise until it stops.
- Page 83 Piping installation To close the stop valve Screw stop valve 1 Turn the valve stem clockwise until it stops. Tighten with the appropriate tightening torque. 2 Tighten the packing holder. 3 Before mounting the valve cap, insert a new copper packing. 4 Apply screw lock agent or silicon sealant to the screw thread when mounting the valve cap.
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Page 84: Tightening Torques
Piping installation a To outdoor unit b To indoor unit 15.2.4 Tightening torques Screw stop valve Stop valve size Tightening torque (N•m) (turn clockwise to close) (mm) Shaft Valve cap Packing Valve stem Valve core cap pressure Ø15.9 38.2~46.6 7.4~9.0 13.2~16.0 14.2~17.2 Ø19.1... - Page 85 Piping installation a Copper packing 2 Connect the charge port to the service port. 3 Remove the valve cap with 2 spanners. 4 Insert a hexagonal wrench (4 mm). 5 Rotate the hexagonal wrench counterclockwise until the end. Result: The service port is fully open. To close the service port 1 Insert a hexagonal wrench (4 mm).
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Page 86: Connecting The Refrigerant Piping
Piping installation 6 Tighten the service port cap with 2 spanners. Result: The service port is fully closed. 15.3 Connecting the refrigerant piping 15.3.1 About connecting the refrigerant piping Before connecting the refrigerant piping Make sure the outdoor and indoor units are mounted. Typical workflow Connecting the refrigerant piping involves: ▪... -
Page 87: To Cut Off The Spun Pipes
Piping installation CAUTION NEVER bend high pressure piping! Bending can reduce the pipe thickness and thus weaken the piping. ALWAYS use K65 fittings. NOTICE Take adequate measures to prevent misuse of the piping. Some examples of misuse of the piping: climbing on the piping, using the piping as storage, hanging tools on the piping. -
Page 88: To Connect The Refrigerant Piping To The Outdoor Unit
Piping installation 1 Remove the valve cap with 2 spanners (counterclockwise). 2 Loosen the packing holder by rotating counterclockwise from 1/8 to 1/2 turn. 3 Close the valve (clockwise). 2 Open the service port cap slowly and check that there is no pressure left. 3 Incrementally loosen the valve core to ensure that there is no pressure left. - Page 89 Piping installation For the outdoor unit a Left side connection b Front connection (refrigeration) c Front connection (air conditioner) d Right side connection For the capacity up unit a Left side connection b Front connection (refrigeration) NOTICE Precautions when making knockout holes: ▪...
- Page 90 Piping installation 3 Cut off the spun pipes. See "15.3.3 To cut off the spun pipes" [ 87]. 4 Connect the gas and liquid piping to the outdoor unit. A Stop valve (gas – refrigeration) B Stop valve (liquid – refrigeration) a Gas piping b Liquid piping 5 If applicable, connect the piping to the capacity up unit.
- Page 91 Piping installation 3 Cut off the spun pipes. See "15.3.3 To cut off the spun pipes" [ 87]. 4 Connect the gas and liquid piping of the air conditioning to the outdoor unit. Side connection (refrigeration) NOTICE Protect the unit from damage during brazing. 1 Remove the left front panel of the outdoor unit and, if applicable, the one of the capacity up unit.
- Page 92 Piping installation A Stop valve (gas – refrigeration) B Stop valve (liquid – refrigeration) a Gas piping b Liquid piping 7 If applicable, connect the piping to the capacity up unit. Side connection (air conditioner) NOTICE Protect the unit from damage during brazing. 1 Remove the right front panel of the outdoor unit.
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Page 93: To Braze The Pipe End
Piping installation b Drill (Ø6 mm) c Drill here 5 Cut off the spun pipes. See "15.3.3 To cut off the spun pipes" [ 87]. 6 Connect the gas and liquid piping of the air conditioning to the outdoor unit. 15.3.5 To braze the pipe end General guidelines ▪... - Page 94 Piping installation 80~85˚ 5 mm 3 mm a Correct distance and direction of flame during preheating. b Correct distance and direction of flame during brazing. c Incorrect distance and direction of flame. Beware of burning holes in the piping or not heating the piping enough.
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Page 95: Guidelines To Connect T-Joints
Piping installation 15.3.6 Guidelines to connect T-joints INFORMATION Piping joints and fittings shall comply with the requirements of EN 14276-2. CAUTION ALWAYS use K65 T-joints for refrigerant branching. K65 T-joints are field supplied. Liquid piping Always branch horizontally when connecting the branch piping. To prevent uneven refrigerant flow, always branch downwards when using a header. -
Page 96: Guidelines To Install A Filter
Piping installation Dryer type Drops of R744 water capacity at 60°C: 200 Recommended dryer for use with transcritical CO For LRYEN10*: GMC Refrigerazione type CSR485CO2 Where/how Install the dryer as near as possible to the outdoor unit. Install the dryer on the liquid pipe of the refrigeration side. Install the dryer horizontally. - Page 97 Piping installation WARNING Serious injury and/or damage can result from the blow-off of the liquid receiver safety valve (see "25.2 Piping diagram: Outdoor unit" [ 152]): ▪ NEVER service the unit when the pressure at the liquid receiver is higher than 86 bar gauge. If the safety valve releases refrigerant, it can cause serious injury and/or damage.
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Page 98: Guidelines To Install Blow-Off Piping
Piping installation Where/how Low pressure side of the refrigeration circuit piping. Use a straight pipe ≤1 m and Ø15.9 mm for the piping connection between the field piping and the safety valve. A (mm ): orifice section Kd: discharge coefficient NOTICE When installing the safety valve in the outdoor unit, apply 20 PTFE tape windings and tighten the safety valve in its correct position with a torque between 35 and 60 N•m. -
Page 99: Checking Refrigerant Piping: General Guidelines
Piping installation ▪ Checking for any leakages in the refrigerant piping. ▪ Performing vacuum drying to remove all moisture, air or nitrogen in the refrigerant piping. If there is a possibility of moisture being present in the refrigerant piping (for example, water may have entered the piping), first carry out the vacuum drying procedure below until all moisture has been removed. -
Page 100: To Perform A Strength Pressure Test
Piping installation E Outdoor unit a Pressure regulator b Charge hose c1, c2 Gas side d1, d2 Liquid side e To refrigeration indoor unit f To air conditioning indoor unit Stop valve Service port Field piping NOTICE The connections to the indoor units and all indoor units should also be leak and vacuum tested. -
Page 101: To Perform A Leak Test
Piping installation 6 If there is a pressure drop, after pressure is released, locate the leak and repair. If the test was successful, replace the cap on the threaded piece with the changeover valve (if applicable) and safety valve(s) (field supplied). 15.4.5 To perform a leak test Perform this test for field piping. -
Page 102: Insulating The Refrigerant Piping
Piping installation 3 Repeat vacuum destruction and vacuum drying if the pressure does not reach –0.1 MPa or less. 4 Leave the unit for more than 1 hour with a vacuum pressure of –0.1 MPa or less. On the vacuum gauge, check if the pressure does not increase. 15.5 Insulating the refrigerant piping After finishing the leak test and vacuum drying, the piping must be insulated. -
Page 103: Electrical Installation
Electrical installation 16 Electrical installation CAUTION This equipment is NOT intended for use in residential locations and will NOT guarantee to provide adequate protection to radio reception in such locations. NOTICE If the equipment is installed closer than 30 m to a residential location, the professional installer MUST evaluate the EMC situation before installation. - Page 104 Electrical installation WARNING ▪ If the power supply has a missing or wrong N-phase, equipment might break down. ▪ Establish proper earthing. Do NOT earth the unit to a utility pipe, surge absorber, or telephone earth. Incomplete earthing may cause electrical shocks. ▪...
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Page 105: Field Wiring: Overview
Electrical installation 16.1.2 Field wiring: Overview INFORMATION Indoor units (air conditioning). This field wiring overview shows only one possible wiring for the indoor units (air conditioning). For more possibilities, see the indoor unit manual. X1M (A1P) X1M (A1P) X1M (A1P) X1M (A1P) L1 L2 L3 N C C1 W1 R P1 P2... -
Page 106: Guidelines For Making Knockout Holes
Electrical installation 16.1.3 Guidelines for making knockout holes ▪ To punch a knockout hole in a front panel, hit on it with a hammer. ▪ To punch a knockout hole in the bottom panel, drill holes where indicated. ▪ After knocking out the holes, we recommend removing any burrs and paint the edges and areas around the holes using repair paint to prevent rusting. -
Page 107: Guidelines When Connecting The Electrical Wiring
Electrical installation 2× a Knockout plate b Drill (Ø6 mm) c Drill here WARNING Provide adequate measures to prevent that the unit can be used as a shelter by small animals. Small animals that make contact with electrical parts can cause malfunctions, smoke or fire. - Page 108 Electrical installation Use the following methods for installing wires: Wire type Installation method Single-core wire AA´ A´ Stranded conductor wire twisted to "solid-like" connection a Curled wire (single-core or twisted stranded conductor wire) b Screw c Flat washer Stranded conductor wire with round crimp-style terminal a Terminal...
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Page 109: About Electrical Compliance
Electrical installation Tightening torques X1M (A1P) X1M (A1P) a Terminals on outdoor unit b Terminals on capacity up unit Terminal Screw size Tightening torque (N•m) X1M: Power supply 5.5~7.3 PE: Protective earth (screw) X2M, X4M: Output signals 1.18~1.44 X3M, X5M: Remote M3.5 0.79~0.97 switches... -
Page 110: Specifications Of Standard Wiring Components
Electrical installation 16.1.6 Specifications of standard wiring components Power supply NOTICE When using residual current operated circuit breakers, be sure to use a high-speed type 300 mA rated residual operating current. The power supply must be protected with the required safety devices, i.e. a main switch, a slow blow fuse on each phase and an earth leakage protector in accordance with the applicable legislation. -
Page 111: Connections To The Outdoor Unit
Electrical installation 16.2 Connections to the outdoor unit NOTICE ▪ Be sure to keep the power line and transmission line apart from each other (≥50 mm). Transmission wiring and power supply wiring may cross, but may not run parallel. ▪ Transmission wiring and power supply wiring may NOT touch internal piping in order to avoid wire damage due to high temperature piping. - Page 112 Electrical installation X1M (A1P) f Wiring intake (knockout hole) for low voltage. See "16.1.3 Guidelines for making knockout holes" [ 106]. Details – DIII transmission wiring "16.1.6 Specifications of standard wiring components" [ 110]. Details – Remote operation switch NOTICE Remote operation switch. The unit is factory-equipped with an operation switch with which you can turn unit operation ON/OFF.
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Page 113: High Voltage Wiring - Outdoor Unit
Electrical installation Details – Remote low noise switch NOTICE Low noise switch. If you want to remotely turn ON/OFF low noise operation, you must install a low noise switch. Use a voltage-free contact for microcurrent (≤1 mA, 12 V DC). Low noise switch Mode Normal mode Low noise mode... - Page 114 Electrical installation h Wiring intake (knockout hole) for high voltage. See "16.1.3 Guidelines for making knockout holes" [ 106]. Details – Output signals NOTICE Output signals. The outdoor unit is provided with a terminal (X4M class II construction) that can output 4 different signals. The signal is 220~240 V AC. The maximum load for all signals is 0.5 ...
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Page 115: Connections To The Capacity Up Unit
Electrical installation 16.3 Connections to the capacity up unit NOTICE ▪ Be sure to keep the power line and transmission line apart from each other (≥50 mm). Transmission wiring and power supply wiring may cross, but may not run parallel. ▪ Transmission wiring and power supply wiring may NOT touch internal piping in order to avoid wire damage due to high temperature piping. - Page 116 Electrical installation e Wiring intake (knockout hole) for low voltage. See "16.1.3 Guidelines for making knockout holes" [ 106]. Details – DIII transmission wiring "16.1.6 Specifications of standard wiring components" [ 110]. Details – Remote operation switch NOTICE Remote operation switch. The unit is factory-equipped with an operation switch with which you can turn unit operation ON/OFF.
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Page 117: High Voltage Wiring - Capacity Up Unit
Electrical installation Wiring Only use harmonised wire providing double insulation and suitable for the applicable voltage. 2-cord cable 0.75~1.25 mm² Maximum wiring length 130 m 16.3.2 High voltage wiring – Capacity up unit Connections/routing/fixing L1 L2 L3 L1 L2 L3 N 3N~ 50 Hz 380-415 V C C1 W1 R P1 P2 a d/e/f... - Page 118 Electrical installation Details – Output signals NOTICE Output signals. The outdoor unit is provided with a terminal (X2M class II construction) that can output 3 different signals. The signal is 220~240 V AC. The maximum load for all signals is 0.5 A. The unit outputs a signal in the following situations: ▪...
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Page 119: Charging Refrigerant
Charging refrigerant 17 Charging refrigerant In this chapter 17.1 About charging refrigerant..............................119 17.2 Precautions when charging refrigerant ..........................119 17.3 About the refrigerant ................................121 17.4 To determine additional refrigerant amount......................... 122 17.5 To charge refrigerant................................124 17.6 To fix the refrigerant charge label............................124 17.1 About charging refrigerant The outdoor unit is factory charged with refrigerant, but depending on the field piping you have to charge additional refrigerant. - Page 120 Charging refrigerant CAUTION A vacuumed system will be under triple point. To avoid solid ice, ALWAYS start charging with R744 in vapour state. When the triple point is reached (5.2 bar absolute pressure or 4.2 bar gauge pressure), you may continue charging with R744 in liquid state.
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Page 121: About The Refrigerant
Charging refrigerant INFORMATION Also read the precautions and requirements in the following chapters: ▪ General safety precautions ▪ Preparation INFORMATION For the operation method of the stop valves, refer to "15.2 Using stop valves and service ports" [ 79]. 17.3 About the refrigerant This product contains refrigerant gases. -
Page 122: To Determine Additional Refrigerant Amount
Charging refrigerant Phase diagram of R744 P (bar) 73.8 T (C°) –80 –57 P Pressure (in bar) T Temperature (in °C) a Solid phase b Liquid phase c Vapour phase d Supercritical fluid e Triple point (–57°C, 5.2 bar) 17.4 To determine additional refrigerant amount 1 Check the factory charged amount of refrigerant [1] on the nameplate of the unit. - Page 123 Charging refrigerant Calculation table: outdoor unit with or without capacity up unit Factory charged amount of refrigerant into outdoor unit (kg): see nameplate (Factory charged amounts available: 5.2 kg and 6.3 kg) Amount of refrigerant for liquid piping (refrigeration / air conditioner) Liquid piping Conversion Piping length Total amount...
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Page 124: To Charge Refrigerant
Charging refrigerant Model Conversion ratio FXFN50 0.13 kg/unit FXFN71 0.21 kg/unit FXFN112 0.32 kg/unit INFORMATION The capacity up unit is a pre-charged, closed circuit. There is no need to add additional refrigerant charging. 17.5 To charge refrigerant 1 Turn OFF the operation switch of the outdoor unit. 2 Turn ON the power supply of the outdoor unit and all indoor units (air conditioners, blower coils, showcases). - Page 125 Charging refrigerant RXXX GWP: XXX a Factory refrigerant charge b Additional refrigerant amount charged c Total refrigerant charge d GWP value of the refrigerant GWP = Global Warming Potential 2 Fix the label on the outdoor unit near the nameplate. LRYEN10 + LRNUN5A Installer and user reference guide CO₂...
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Page 126: Finishing The Outdoor Unit Installation
Finishing the outdoor unit installation 18 Finishing the outdoor unit installation 18.1 To check the insulation resistance of the compressor NOTICE If, after installation, refrigerant accumulates in the compressor, the insulation resistance over the poles can drop, but if it is at least 1 MΩ, then the unit will not break down. -
Page 127: Configuration
Configuration 19 Configuration DANGER: RISK OF ELECTROCUTION INFORMATION It is important that all information in this chapter is read sequentially by the installer and that the system is configured as applicable. In this chapter 19.1 Making field settings................................127 19.1.1 About making field settings ........................... -
Page 128: Field Setting Components
Configuration c1 Inspection hole c2 Inspection hole cover d Operation switch (S1S) e Field setting components e1 7‑segment displays: ON ( ) OFF ( ) Flashing ( e2 Push buttons: BS1: MODE: For changing the set mode BS2: SET: For field setting BS3: RETURN: For field setting e3 DIP switches 4 After making the field settings, reattach the inspection hole covers and the... -
Page 129: To Access Mode 1 Or 2
Configuration 7-segment display The display gives feedback about the field settings, which are defined as [Mode- Setting]=Value. Example: Description Default situation Mode 1 Mode 2 Setting 8 (in mode 2) Value 4 (in mode 2) 19.1.4 To access mode 1 or 2 After the units are turned ON, the display goes to its default situation. -
Page 130: To Set Field Settings
Configuration Switching between modes Use BS1 to switch between the default situation, mode 1 and mode 2. a Default situation (H1P OFF) b Mode 1 (H1P flashing) c Mode 2 (H1P ON) BS1 Press BS1. BS1 [5 s] Press BS1 for at least 5 s. INFORMATION If you get confused in the middle of the process, press BS1 to return to the default situation. - Page 131 Configuration WARNING If any part of system is already (accidentally) powered on, setting [2-21] on the outdoor unit can be set to value 1 to open the valves (Y1E, Y2E, Y7E, Y8E, Y13E, Y16E, Y17E, Y11S~Y16S, Y21S~Y26S, Y31S~Y34S, Y44S). LRYEN10 + LRNUN5A Installer and user reference guide CO₂...
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Page 132: Commissioning
Commissioning 20 Commissioning In this chapter 20.1 Overview: Commissioning ..............................132 20.2 Precautions when commissioning............................132 20.3 Checklist before commissioning............................. 133 20.4 About the system test run..............................134 20.5 To perform a test run (7-segment display) ..........................134 20.5.1 Test run checks............................... 135 20.5.2 Correcting after abnormal completion of the test run .................. -
Page 133: Checklist Before Commissioning
Commissioning INFORMATION During the first running period of the unit, the required power may be higher than stated in the technical engineering data of the unit. This phenomenon is caused by the compressor, that needs a continuous run time of 50 hours before reaching smooth operation and stable power consumption. -
Page 134: About The System Test Run
Commissioning Pipe size and pipe insulation Be sure that correct pipe sizes are installed and that the insulation work is properly executed. Stop valves Be sure that the stop valves (4 in total) are open on the liquid and gas side for refrigeration and air conditioning. -
Page 135: Test Run Checks
Commissioning 3 Turn ON the power supply of all units: the indoor units, outdoor unit and (if applicable) the capacity up unit. 4 Wait for about 10 minutes until the communication between the outdoor unit and indoor units is confirmed. The 7-segment display is blinking during the communication test: ▪... - Page 136 Commissioning The remote controller displays … Description Room temperature The remote controller operates correctly. Error code "23.3.1 Error codes: Overview" [ 144]. Nothing Check that: ▪ Power supply of indoor unit is turned ▪ The cable of the power supply cable is not broken and connected correctly.
- Page 137 Commissioning Check operation parameters Action Push button 7-segment display Check that the 7-segment — display is OFF. This is the initial condition after the communication has been confirmed. To return to the initial state of the 7-segment display, push BS1 once, or leave the unit as is for at least 2 hours.
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Page 138: Correcting After Abnormal Completion Of The Test Run
Commissioning 20.5.2 Correcting after abnormal completion of the test run The test operation is only completed if there is no malfunction code displayed on the user interface or outdoor unit 7‑segment display. In case of a displayed malfunction code, perform correcting actions as explained in the malfunction code table. -
Page 139: Hand-Over To The User
Hand-over to the user 21 Hand-over to the user Once the test run is finished and the unit operates properly, make sure the following is clear for the user: ▪ Make sure that the user has the printed documentation and ask him/her to keep it for future reference. -
Page 140: Maintenance And Service
Maintenance and service 22 Maintenance and service In this chapter 22.1 Maintenance safety precautions............................140 22.2 To prevent electrical hazards ..............................140 22.3 To release refrigerant ................................141 22.3.1 To release refrigerant using the service ports....................... 141 22.1 Maintenance safety precautions DANGER: RISK OF ELECTROCUTION DANGER: RISK OF BURNING/SCALDING NOTICE... -
Page 141: To Release Refrigerant
Maintenance and service 3 To prevent damaging the PCB, touch a non-coated metal part to eliminate static electricity before pulling out or plugging in connectors. 4 Pull out junction connectors for the fan motors in the outdoor unit before starting service operation on the inverter equipment. Be careful NOT to touch the live parts. - Page 142 Maintenance and service CAUTION It is mandatory to open expansion valve Y1E while releasing refrigerant. If not open, refrigerant will remain inside the unit. INFORMATION ONLY in case the MFG.DATE is 2023 or later. You can also use field setting [2-21] to open Y1E, instead of opening Y1E manually using a magnet.
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Page 143: Troubleshooting
Troubleshooting 23 Troubleshooting In this chapter 23.1 Overview: Troubleshooting ..............................143 23.2 Precautions when troubleshooting............................143 23.3 Solving problems based on error codes..........................143 23.3.1 Error codes: Overview............................144 23.1 Overview: Troubleshooting Before troubleshooting Carry out a thorough visual inspection of the unit and look for obvious defects such as loose connections or defective wiring. -
Page 144: Error Codes: Overview
Troubleshooting INFORMATION See the service manual for: ▪ The complete list of error codes ▪ A more detailed troubleshooting guideline for each error 23.3.1 Error codes: Overview In case other error codes appear, contact your dealer. Main code LRYEN10* LRNUN5* Cause Solution Electrical leakage Correct the field wiring and connect... - Page 145 Troubleshooting Main code LRYEN10* LRNUN5* Cause Solution Malfunction of ambient Check connection on PCB or temperature sensor actuator. For LRYEN10* and LRNUN5*: ▪ (R1T) - A1P (X18A) Malfunction of discharge/ Check connection on PCB or compressor body temperature actuator. sensor For LRYEN10*: ▪...
- Page 146 Troubleshooting Main code LRYEN10* LRNUN5* Cause Solution Malfunction of high pressure sensor Check connection on PCB or actuator. For LRYEN10*: ▪ (S1NPH) – A2P (X31A) For LRNUN5*: ▪ (S1NPH) – A1P (X31A) Malfunction of low pressure sensor Check connection on PCB or actuator.
- Page 147 Troubleshooting Main code LRYEN10* LRNUN5* Cause Solution — Replaced all air conditioner indoor Check the communication cable and units after confirmed conduct operation after all communication communication cables are corrected. If an air conditioner indoor unit is — Added any air conditioner indoor installed: units after confirmed communication...
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Page 148: Disposal
Disposal 24 Disposal Before disposal, remove all refrigerant. For more information, see "22.3.1 To release refrigerant using the service ports" [ 141]. NOTICE Do NOT try to dismantle the system yourself: dismantling of the system, treatment of the refrigerant, oil and other parts MUST comply with applicable legislation. Units MUST be treated at a specialised treatment facility for reuse, recycling and recovery. -
Page 149: Technical Data
Technical data 25 Technical data A subset of the latest technical data is available on the regional Daikin website (publicly accessible). The full set of the latest technical data is available on the Daikin Business Portal (authentication required). In this chapter 25.1... - Page 150 Technical data (mm) 1500 ≥300 ≥500 ≥500 ≥500 ≥300 ≥500 ≥500 ≥500 ≥500 ≥500 ≥300 ≥500 ≥500 ≥500 ≥300 ≥500 ≥500 ≥500 ≥500 ≥500 ≥500 Item Description Maintenance space Possible patterns with installation spaces in case (a)(b)(c)(d)(e)(f) of a single outdoor unit Possible patterns with installation spaces in case of an outdoor unit connected to a capacity up (a)(b)(c)(d)(e)(f)
- Page 151 Technical data Item Description H2 (actual height)–500 mm Front side = 500 mm+≥h1/2 Y (for patterns B) Air inlet side = 300 mm+≥h2/2 Y (for patterns C) Air inlet side = 100 mm+≥h2/2 Wall height front side: ≤1500 mm. Wall height air inlet side: ≤500 mm. Wall height other sides: no limit.
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Page 152: Piping Diagram: Outdoor Unit
Technical data 25.2 Piping diagram: Outdoor unit Units till serial number 2999999 Y31S~Y34S Y41S~Y44S 15.9 C1220T-H Y17E Y16E Y21S~Y26S Y11S~Y16S 15.9 C1220T-H S3PH S1NPH R33T R93T HEX1 CV10 Y14E R23T S2NPM CV11 S1PH S2PH HEX2 R31T R32T R92T R91T 19.1 C1220T-H R21T R22T S1NPL... - Page 153 Technical data Units from serial number 3000000 till 3999999 Y31S~Y34S Y44S 15.9 C1220T-H Y17E Y16E Y21S~Y26S Y11S~Y16S 15.9 C1220T-H S3PH S1NPH R33T R93T HEX1 CV10 Y14E R23T S2NPM CV11 S1PH S2PH HEX2 R31T R32T R92T R91T 19.1 C1220T-H R21T R22T S1NPL S2NPL S1NPM...
- Page 154 Technical data Units from serial number 4000000 Y31S~Y34S Y44S 15.9 C1220T-H Y17E Y16E Y21S~Y26S Y11S~Y16S 15.9 C1220T-H S3PH S1NPH R33T R93T HEX1 CV10 Y14E R23T S2NPM CV11 S1PH S2PH HEX2 R31T R32T R92T R91T 19.1 C1220T-H R21T R22T S1NPL S2NPL S1NPM Y13E 15.9 C1220T-H...
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Page 155: Piping Diagram: Capacity Up Unit
Technical data 25.3 Piping diagram: Capacity up unit 15.9 C1220T-H 15.9 C1220T-H 3D128362B Pressure sensor Compressor with accumulator Pressure switch Plate heat exchanger Check valve Heat exchanger Service port Oil separator Electronic expansion valve Liquid receiver Filter Refrigerant pipe Propeller fan Oil and injection pipe LRYEN10 + LRNUN5A Installer and user reference guide... -
Page 156: Wiring Diagram: Outdoor Unit
Technical data 25.4 Wiring diagram: Outdoor unit The wiring diagram is delivered with the unit: ▪ For the outdoor unit: At the inside of the left switch box cover. ▪ For the capacity up unit: At the inside of the switch box cover. Outdoor unit Notes: This wiring diagram applies only to the outdoor unit. - Page 157 Technical data Printed circuit board (M1F) A10P Printed circuit board (M2F) A11P Printed circuit board (M3F) A12P Printed circuit board (sub) A13P Printed circuit board (ABC I/P 1) A14P Printed circuit board (earth leakage detector) E1HC Crankcase heater (M1C) E2HC Crankcase heater (M2C) E3HC Crankcase heater (M3C)
- Page 158 Technical data S3PH Pressure switch (high pressure protection) (M3C) Operation switch (REMOTE/OFF/ON) Y11S~Y16S Solenoid valve (discharge, cooling or defrost) Y21S~Y26S Solenoid valve (discharge, heating) Y31S~Y34S Solenoid valve (suction, cooling) Y41S~Y44S Solenoid valve (outdoor unit (heat exchanger coil) evaporation) Note: units till serial number 2999999 Y44S Solenoid valve (outdoor unit (heat exchanger coil)
- Page 159 Technical data Colours: Black Blue White Green Yellow Legend: Printed circuit board (main) Printed circuit board (M1C) Printed circuit board (noise filter) (M1C) Printed circuit board (M1F) Printed circuit board (ABC I/P 1) Printed circuit board (sub) BS1~BS3 Push buttons (mode, set, return) C503, C506 Capacitor (A2P) C507...
- Page 160 Technical data Thermistor (M1C discharge) Thermistor (de-icer) Thermistor (liquid separator outlet) Thermistor (plate heat exchanger outlet) Thermistor (liquid pipe) Thermistor (M1C body) S1NPH High pressure sensor S1NPL Low pressure sensor (air conditioner) S1NPM Medium pressure sensor S1PH Pressure switch (high pressure protection) (M1C) Operation switch (REMOTE/OFF/ON) Current sensor (A1P) Power module (A2P, A4P)
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Page 161: Glossary
Optional equipment Equipment made or approved by Daikin that can be combined with the product according to the instructions in the accompanying documentation. Field supply Equipment NOT made by Daikin that can be combined with the product according to the instructions in the accompanying documentation. - Page 164 4P605460-1B 2024.12...
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