Daikin RXYLQ12T7Y1B Series Installer And User Manual
Vrv iv system
Hide thumbs
Also See for RXYLQ12T7Y1B Series:
- Installation and operation manual (40 pages) ,
- Installation and operation manual (44 pages)
Related Manuals for Daikin RXYLQ12T7Y1B Series
Summary of Contents for Daikin RXYLQ12T7Y1B Series
- Page 1 Installer and user reference guide VRV IV system air conditioner RXMLQ8T7Y1B* RXYLQ10T7Y1B* Installer and user reference guide RXYLQ12T7Y1B* English VRV IV system air conditioner RXYLQ14T7Y1B*...
-
Page 2: Table Of Contents
Table of contents 6.4.1 Precautions when connecting the refrigerant piping ..20 Table of contents 6.4.2 About connecting the refrigerant piping ....... 21 6.4.3 To route the refrigerant piping........21 6.4.4 To connect the refrigerant piping to the outdoor unit ... 21 6.4.5 To connect the multi connection piping kit .... -
Page 3: General Safety Precautions
1 General safety precautions 10.3 About service mode operation........... 44 20.2.3 Symptom: Fan operation is possible, but cooling and heating do not work............59 10.3.1 To use vacuum mode ..........44 20.2.4 Symptom: The fan speed does not correspond to the 10.3.2 To recover refrigerant .......... -
Page 4: For The User
Make sure installation, testing and applied materials comply with applicable legislation (on top of the For the user instructions described in the Daikin documentation). CAUTION ▪ If you are NOT sure how to operate the unit, contact your installer. Wear adequate personal protective equipment (protective ▪... -
Page 5: Installation Site
1 General safety precautions 1.3.2 Installation site WARNING ALWAYS recover the refrigerant. Do NOT release them ▪ Provide sufficient space around the unit for servicing and air directly into the environment. Use a vacuum pump to circulation. evacuate the installation. ▪... -
Page 6: Water
1 General safety precautions WARNING WARNING Take sufficient precautions in case of brine leakage. If ▪ ONLY use copper wires. brine leaks, ventilate the area immediately and contact ▪ Make sure the field wiring complies with the applicable your local dealer. legislation. -
Page 7: About The Documentation
Daikin website (publicly accessible). This appliance is intended to be used by expert or trained ▪ The full set of latest technical data is available on the Daikin users in shops, in light industry and on farms, or for extranet (authentication required). -
Page 8: To Remove The Accessories From The Outdoor Unit
4 About the units and options Accessory pipes (mm) Øa Øb Liquid pipe ▪ Front connection ID Øb 12.7 ID Øa ▪ Bottom connection ID Øb ID Øa To remove the transportation stay NOTICE If the unit is operated with the transportation stay attached, abnormal vibration or noise may be generated. -
Page 9: Identification Label: Outdoor Unit
4 About the units and options Identification label: Outdoor unit System layout Location NOTICE Design of the system must not be done at temperatures below –15°C. INFORMATION Not all combinations of indoor units are allowed, for guidance, see "4.5.2 Possible combinations of indoor units" on page 9. -
Page 10: Possible Combinations Of Outdoor Units
5 Preparation External control adaptor (DTA104A61/62) 4.5.3 Possible combinations of outdoor units To instruct specific operation with an external input coming from a Possible standalone outdoor units central control the external control adaptor can be used. Instructions (group or individual) can be instructed for low noise operation and RXYLQ10 power consumption limitation operation. -
Page 11: Additional Installation Site Requirements Of The Outdoor Unit In Cold Climates
5 Preparation NOTICE Install the outdoor unit away from direct sea winds. This is a class A product. In a domestic environment this Example: Behind the building. product may cause radio interference in which case the user may be required to take adequate measures. NOTICE The equipment described in this manual may cause electronic noise generated from radio-frequency energy. -
Page 12: Securing Safety Against Refrigerant Leaks
5 Preparation This system uses R410A as refrigerant. R410A itself is an entirely safe non-toxic, non-combustible refrigerant. Nevertheless care must be taken to ensure that the system is installed in a room which is sufficiently large. This assures that the maximum concentration level of refrigerant gas is not exceeded, in the unlikely event of major leak in the system and this in accordance to the local applicable regulations and standards. -
Page 13: Preparing Refrigerant Piping
5 Preparation ▪ Only use phosphoric acid deoxidised seamless copper. When there is a room division that has an opening sufficiently large to permit free air flow. 5.3.2 To select the piping size Determine the proper size using the following tables and reference figure (only for indication). -
Page 14: To Select Refrigerant Branch Kits
5 Preparation ▪ In case the required pipe sizes (inch sizes) are not available, it is E: Piping between refrigerant branch kit and also allowed to use other diameters (mm sizes), taken the indoor unit following into account: Pipe size for direct connection to indoor unit must be the same as ▪... -
Page 15: About The Piping Length
5 Preparation Indoor unit capacity index 2 pipes 5.3.5 Piping length: VRV DX only <200 KHRQ22M29H For system only containing VRV DX indoor units: 200≤x<290 System setup 290≤x<640 KHRQ22M64H Example Description ≥640 KHRQ22M75H Example 1.1 Single outdoor If the pipe size above the refnet header is Ø34.9 or more, KHRQ22M75H is required. -
Page 16: Piping Length: Vrv Dx And Hydrobox
5 Preparation Example 1.3: unit 8: i≤40 m Actual piping 165 m/135 m length However, extension is possible if all below conditions are met. In this Example 1.1 case limitation can be extended up to 90 m. ▪ unit 8: a+b+c+d+e+f+g+p≤165 m Example 1.2 ▪ unit 6: a+b+h≤165 m ▪... -
Page 17: Piping Length: Vrv Dx And Ra Dx
5 Preparation VRV DX indoor units Example Description Maximum allowable length Example 3 Branch with refnet header ▪ Between outdoor unit and indoor unit. Actual piping 100 m length Example: a+b+g+l≤100 m Equivalent length 120 m VRV DX indoor units Total piping length 250 m Hydrobox unit (HXY080/125) Example: Maximum allowable length a+b+d+g+l+k+c+e+f+h+i+j≤250 m... -
Page 18: Preparing Electrical Wiring
5 Preparation Allowed NOTICE ▪ To avoid the risk of oil retention to the outmost outdoor unit, There are restrictions on the refrigerant pipe connection always connect the stop valve and the piping between outdoor order between outdoor units during installation in case of a units as shown in the 4 correct possibilities of the figure below. -
Page 19: Safety Device Requirements
6 Installation ▪ EN/IEC 61000‑3‑11 provided that the system impedance Z Model Minimum Recommended less than or equal to Z at the interface point between the user's circuit fuses supply and the public system. ampacity ▪ EN/IEC 61000‑3‑11 European/International Technical RXYLQ40 78.0 A 90 A... -
Page 20: To Open The Electrical Component Box Of The Outdoor Unit
6 Installation NOTICE ▪ When the installation height of the unit needs to be increased, do NOT use stands to only support the corners. ▪ Stands under the unit must be at least 100 mm wide. 14× Not allowed Once the front plates open, the electrical component box can be Allowed (* = preferred installation) accessed. -
Page 21: About Connecting The Refrigerant Piping
6 Installation WARNING During tests, NEVER pressurize the product with a pressure higher than the maximum allowable pressure (as indicated on the nameplate of the unit). WARNING Take sufficient precautions in case of refrigerant leakage. If Large knockout hole Drill refrigerant gas leaks, ventilate the area immediately. -
Page 22: Multiple Outdoor Units: Knockout Holes
6 Installation 7.5° 7.5° Caution label Not allowed Allowed ▪ Make sure that the total length of the piping connected to the joint is absolute straight for more than 500 mm. Only if a straight field piping of more than 120 mm is connected, more than 500 mm of straight section can be ensured. -
Page 23: Using The Stop Valve And Service Port
6 Installation ▪ When brazing, blow through with nitrogen to prevent creation of large quantities of oxidised film on the inside of the piping. This film adversely affects valves and compressors in the refrigerating system and prevents proper operation. ▪ Set the nitrogen pressure to 20 kPa (0.2 bar) (just enough so it can be felt on the skin) with a pressure-reducing valve. -
Page 24: To Remove The Pinched Pipes
6 Installation To handle the service port CAUTION Do not vent gases into the atmosphere. ▪ Always use a charge hose equipped with a valve depressor pin, since the service port is a Schrader type valve. 4 When all gas and oil is recovered from the pinched piping, disconnect the charge hose and close the service ports ▪... -
Page 25: Checking Refrigerant Piping: General Guidelines
6 Installation Method 2: After power ON Weighing scales Refrigerant R410A tank (siphon system) If the system has already been powered on, activate setting [2‑21] Vacuum pump (refer to "7.2.4 To access mode 1 or 2" on page 35). This setting Liquid line stop valve Gas line stop valve will open field expansion valves to guarantee a R410A piping... -
Page 26: To Insulate The Refrigerant Piping
6 Installation To remove all moisture from the system, proceed as follows: Charging refrigerant 1 Evacuate the system for at least 2 hours to a target vacuum of – 1 00.7 kPa (– 1 .007 bar)(5 Torr absolute). 6.7.1 Precautions when charging refrigerant 2 Check that, with the vacuum pump turned off, the target vacuum is maintained for at least 1 hour. -
Page 27: To Determine The Additional Refrigerant Amount
6 Installation 6.7.3 To determine the additional refrigerant Indoor Total CR per type units amount VRV DX RA DX Hydrobox INFORMATION VRV DX + 70~130% 70~130% — 0~80% — For final charge adjustment in the test laboratory, please contact your local dealer. Hydrobox VRV DX + 70~110% 70~110% —... -
Page 28: To Charge Refrigerant: Flow Chart
6 Installation 6.7.4 To charge refrigerant: Flow chart For more information, see "6.7.5 To charge refrigerant" on page 29. Pre-charging refrigerant Step 1 p < p > Calculate additional refrigerant charge amount: R (kg) Step 2 R410A • Open valves C and B to the liquid line •... -
Page 29: To Charge Refrigerant
6 Installation Charging refrigerant << Continuation of previous page R>Q Step 4 p < p > • Connect valve A to the refrigerant charge port (d) • Open all outdoor unit stop valves R410A Step 5 Proceed with manual charge Step 6 Activate field setting [2-20]=1 Unit will start manual refrigerant charging operation. -
Page 30: Step 6: To Manually Charge Refrigerant
6 Installation 4 Valve A can be opened. Charging of remaining additional INFORMATION refrigerant can be done. If the total additional refrigerant amount was reached in 5 When the remaining calculated additional refrigerant amount is step 4 (by pre-charging only), record the amount of added, close valve A and push BS3 to stop the manual refrigerant that was added on the additional refrigerant refrigerant charging procedure. -
Page 31: Field Wiring: Overview
6 Installation WARNING NOTICE All field wiring and components MUST be installed by a ▪ The reversed phase protection detector of this product licensed electrician and MUST comply with the applicable only functions when product starts legislation. Consequently reversed phase detection performed during normal operation of the product. -
Page 32: Guidelines When Knocking Out Knockout Holes
6 Installation Field piping can be routed from front or bottom of the unit (going left 6.8.5 To route and fix the transmission wiring or right). Refer to "6.4.3 To route the refrigerant piping" on page 21. Transmission wiring can be routed through the front side only. Fix it ▪... -
Page 33: To Finish The Transmission Wiring
6 Installation In case of single outdoor unit installation 6.8.8 To route and fix the power supply NOTICE When routing earth wires, secure clearance of 25 mm or F2 Q1 Q2 more away from compressor lead wires. Failure to observe TO IN/D UNIT TO OUT/D UNIT TO MULTI UNIT this instruction properly may adversely affect correct operation of other units connected to the same earth. -
Page 34: Configuration
7 Configuration NOTICE Making field settings Recommendations when connecting the earth wire: 7.2.1 About making field settings Wire it so that it comes through the cut out section of the cup washer. (An improper earth connection may prevent a To continue the configuration of the VRV IV heat pump system, it is good earthing from being achieved.) required to give some input to the PCB of the unit. -
Page 35: Field Setting Components
7 Configuration ▪ "7.2.5 To use mode 1" on page 35 7.2.4 To access mode 1 or 2 ▪ "7.2.6 To use mode 2" on page 36 Initialisation: default situation ▪ "7.2.7 Mode 1: Monitoring settings" on page 36 NOTICE ▪ "7.2.8 Mode 2: Field settings" on page 37 Be sure to turn on the power 6 hours before operation in order to have power running to the crankcase heater and 7.2.2 Field setting components... -
Page 36: To Use Mode 2
7 Configuration [A‑B]=C in this case defined as: A=1; B=10; C=the value we want to 4 Push BS3 1 time; the value which is returned (depending on the know/monitor: actual field situation), is the status of the setting. In the case of [2‑18], default value is "0", which means the function is not 1 Make sure the 7‑segment display indication is as during normal active. -
Page 37: Mode 2: Field Settings
7 Configuration ▪ The first method is to enable a forced power consumption Cool/Heat selection setting is used in case the optional Cool/Heat limitation by field setting. The unit will always operate at the selector (KRC19-26A and BRP2A81) is used. Depending on the selected power consumption limitation. - Page 38 7 Configuration If the system needs to be running under low noise operation or [2‑22] Description under power consumption limitation conditions when an external Level 1 Level 3<Level 2<Level 1 signal is sent to the unit, this setting should be changed. This setting Level 2 will only be effective when the optional external control adaptor (DTA104A61/62) is installed.
-
Page 39: To Connect The Pc Configurator To The Outdoor Unit
7 Configuration If the system needs to be running under power consumption This setting is used in conjunction with setting [2‑9]. limitation conditions when an external signal is sent to the unit, this [2‑82] Heating comfort setting setting defines the level power consumption limitation that will be applied for step 2. -
Page 40: Available Main Operation Methods
7 Configuration 7.3.1 Available main operation methods 7.3.2 Available comfort settings For each of above modes a comfort level can be selected. The Basic comfort level is related to the timing and the effort (energy The refrigerant temperature is fixed independent from the situation. It consumption) which is put in achieving a certain room temperature corresponds to the standard operation which is known and can be by temporarily changing the refrigerant temperature to different... -
Page 41: Example: Automatic Mode During Cooling
7 Configuration Quick ▪ When the request from the indoor units becomes more moderate, Powerful the system will eventually go to the steady state condition which is Mild defined by the operation method above. Room temperature evolution: ▪ The start up condition is different from the powerful and quick comfort setting. -
Page 42: Commissioning
8 Commissioning Mild INFORMATION Room temperature evolution: During the first running period of the unit, the required power may be higher than stated on the nameplate 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 43: About The Test Run
8 Commissioning 3 Turn ON the power to the outdoor unit and the connected Damaged equipment indoor units. Check the inside of the unit on damaged components or squeezed pipes. NOTICE Refrigerant leak Be sure to turn on the power 6 hours before operation in order to have power running to the crankcase heater and Check the inside of the unit on refrigerant leakage. -
Page 44: Correcting After Abnormal Completion Of The Test Run
9 Hand-over to the user Correcting after abnormal 10.2 Maintenance safety precautions completion of the test run DANGER: RISK OF ELECTROCUTION The test operation is only completed if there is no malfunction code displayed on the user interface or outdoor unit 7‑segment display. In DANGER: RISK OF BURNING case of a displayed malfunction code, perform correcting actions as explained in the malfunction code table. - Page 45 11 Troubleshooting 3 Press BS3 to stop vacuuming mode. It contains information about: ▪ Solving problems based on error codes 10.3.2 To recover refrigerant 11.2 Solving problems based on error This should be done by a refrigerant reclaimer. Follow the same procedure as for vacuuming method.
- Page 46 11 Troubleshooting Main code Sub code Cause Solution Master Slave 1 Slave 2 Discharge temperature too high ▪ Open stop valves. (R21T/R22T): ▪ Check refrigerant amount+recharge ▪ Stop valve closed unit. ▪ Refrigerant shortage Compressor casing temperature too ▪ Open stop valves. high (R8T): ▪...
- Page 47 11 Troubleshooting Main code Sub code Cause Solution Master Slave 1 Slave 2 Transmission outdoor unit - inverter: Check connection. INV1 transmission trouble - A1P (X20A, X28A, X40A) Transmission outdoor unit - inverter: Check connection. FAN1 transmission trouble - A1P (X20A, X28A, X40A) Transmission outdoor unit - inverter: Check connection.
- Page 48 Technical data A subset of the latest technical data is available on the regional Daikin website (publicly accessible). The full set of latest technical data is available on the Daikin extranet (authentication required). ▪ Capacity table 13.1...
- Page 49 13 Technical data (mm) ABCD Sides along the installation site with obstacles Front side Suction side ▪ In case of an installation site where sides A+B+C+D have obstacles, the wall heights of sides A+C have no impact on service space dimensions. Refer to the figure above for impact of wall heights of sides B+D on service space dimensions.
- Page 50 13 Technical data Expansion valve, main (Y1E) C* (A3P) Capacitor Expansion valve, subcool heat exchanger (Y2E) DS* (A1P) DIP switch Subcool heat exchanger Oil separator E1HC Crankcase heater Solenoid valve, oil1 (Y3S) Solenoid valve, oil accumulator (Y2S) F1S (A2P) Surge arrestor 4‑way valve, main (Y1S) F1U (A4P) Fuse (T, 3.15 A, 250 V)
- Page 51 14 About the system For the user About the system The indoor unit part of VRV IV heat pump system can be used for heating/cooling applications. The type of indoor unit which can be used depends on the outdoor units series. NOTICE Do NOT use the system for other purposes.
- Page 52 17 Operation CAUTION 17.2.2 About cooling, heating, fan only, and automatic operation Do NOT operate the system when using a room fumigation-type insecticide. Chemicals could collect in the ▪ Changeover cannot be made with a user interface whose display unit, and endanger the health of people who are shows "change-over under centralised control"...
- Page 53 17 Operation 17.2.5 To operate the system (WITH cool/heat 17.3.2 To use the dry program (WITHOUT cool/ changeover remote control switch) heat changeover remote control switch) Overview of the changeover remote control switch To start 1 Press the operation mode selector button on the user interface FAN ONLY/AIR CONDITIONING several times and select (program dry operation).
- Page 54 17 Operation Indoor unit master allocation is determined as follows in special Ceiling suspended units cases: Wall-mounted units Case Description VRV DX indoor unit The operation mode is always forced by combined with Hydrobox the master user interface of the VRV DX unit indoor unit.
- Page 55 18 Energy saving and optimum operation Type Description 18.1 Available main operation methods Group control system 1 user interface controls up to 16 indoor Basic units. All indoor units are equally set. The refrigerant temperature is fixed independent from the situation. It 2 user interface control 2 user interfaces control 1 indoor unit (in corresponds to the standard operation which is known and can be...
- Page 56 19 Maintenance and service CAUTION: Pay attention to the fan! NOTICE It is dangerous to inspect the unit while the fan is running. In Europe, the greenhouse gas emissions of the total refrigerant charge in the system (expressed as tonnes CO Be sure to turn off the main switch before executing any equivalent) is used to determine the maintenance intervals.
- Page 57 20 Troubleshooting 19.4.3 Recommended maintenance and NOTICE inspection cycles ▪ The table indicates main components. Refer to your maintenance and inspection contract for more details. Be aware that the mentioned maintenance and replacement cycles ▪ The table indicates recommended intervals do not relate to the warranty period of the components.
- Page 58 20 Troubleshooting Malfunction Measure Main code Contents The system operates ▪ Check if air inlet or outlet of outdoor or Electronic expansion valve malfunction (outdoor) but cooling or heating indoor unit is not blocked by obstacles. Discharge temperature malfunction (outdoor) is insufficient.
- Page 59 20 Troubleshooting 20.2.7 Symptom: The user interface display 20.2 Symptoms that are NOT system reads "U4" or "U5" and stops, but then malfunctions restarts after a few minutes The following symptoms are NOT system malfunctions: This is because the user interface is intercepting noise from electric appliances other than the air conditioner.
- Page 60 Field supply Several different indoor units are being run on the same system. Equipment NOT made by Daikin that can be combined with When another unit is running, some refrigerant will still flow through product according instructions the unit.
- Page 64 4P543427-1 2018.07...