Daikin VRV IV RKXYQ5T8Y1B Series Installation And Operation Manual
Compressor unit for indoor installation
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Also See for VRV IV RKXYQ5T8Y1B Series:
- Installer and user reference manual (156 pages) ,
- Installation and operation manual (48 pages) ,
- Installer and user manual (140 pages)
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Summary of Contents for Daikin VRV IV RKXYQ5T8Y1B Series
- Page 1 Installation and operation manual VRV IV compressor unit for indoor installation Installation and operation manual RKXYQ5T8Y1B English VRV IV compressor unit for indoor installation RKXYQ8T7Y1B...
- Page 2 3P397286-5G...
- Page 3 2PW51591-6F...
- Page 4 2PW51591-6F...
- Page 5 Table of Contents 8.2.15 Symptom: The display shows "88"....... 15 Table of Contents 8.2.16 Symptom: The compressor in the outdoor unit does not stop after a short heating operation ....... 15 8.2.17 Symptom: The inside of an outdoor unit is warm even when the unit has stopped ........
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Page 6: Table Of Contents
Mode 2: Field settings..........33 Daikin website (publicly accessible). 16.1.9 To connect the PC configurator to the compressor ▪ The full set of latest technical data is available on the Daikin unit ................36 Business Portal (authentication required). 17 Commissioning 17.1... - Page 7 3 User safety instructions WARNING WARNING Any gas or oil remaining inside the stop valve may blow off ▪ All wiring MUST be performed by an authorised the spun piping. electrician and MUST comply with the applicable legislation. If these instructions are NOT followed correctly it may result in property damage or personal injury, which may be ▪...
- Page 8 3 User safety instructions given supervision or instruction Instructions for safe operation concerning the use of the appliance by CAUTION a person responsible for their safety. ▪ NEVER touch the internal parts of the Children MUST NOT play with the controller.
- Page 9 4 About the system CAUTION: Pay attention to the fan! WARNING It is dangerous to inspect the unit while The refrigerant in the system is safe the fan is running. and normally does not leak. If the refrigerant leaks in the room, contact Be sure to turn off the main switch with a fire of a burner, a heater or a before executing any maintenance...
- Page 10 5 User interface ▪ The air flow rate may adjust itself depending on the room User interface temperature or the fan may stop immediately. This is not a malfunction. CAUTION ▪ NEVER touch the internal parts of the controller. 6.2.3 About the heating operation ▪...
- Page 11 6 Operation To start NOTICE 1 Select operation mode with the cool/heat changeover switch as Do not turn off power immediately after the unit stops, but follows: wait for at least 5 minutes. Cooling operation Heating operation Fan only operation 6.3.3 To use the dry program (WITH cool/heat changeover remote control switch)
- Page 12 7 Maintenance and service Cooling Heating CAUTION ▪ When operating continuously at horizontal air flow direction. Do NOT insert fingers, rods or other objects into the air inlet or outlet. Do NOT remove the fan guard. When the ▪ When continuous operation with downward air flow is performed fan is rotating at high speed, it will cause injury.
- Page 13 8 Troubleshooting When asking your dealer for an intervention, always state: Malfunction Measure ▪ The complete model name of the unit. If the system goes into ▪ Check if air inlet or outlet of heat fan only operation, but exchanger unit or indoor unit is not ▪...
- Page 14 8 Troubleshooting Main code Contents Main code Contents Movement detector or floor temperature sensor Connection malfunction over indoor units or type malfunction (indoor) mismatch (wrong type of indoor units or heat exchanger unit) User interface thermistor malfunction (indoor) Centralised address duplication Fan or drain pump malfunction (heat exchanger unit) Malfunction in communication centralised control PCB malfunction (compressor unit)
- Page 15 9 Relocation 8.2.6 Symptom: White mist comes out of a unit 8.2.12 Symptom: Dust comes out of the unit (Indoor unit) When the unit is used for the first time in a long time. This is because dust has gotten into the unit. ▪...
- Page 16 11.1 About NOTICE If the unit is operated with the transportation stay attached, is part of Daikin's wider commitment to reduce our abnormal vibration or noise may be generated. environmental footprint. With we want to create a circular economy for refrigerants. One of the actions to achieve this, is the reuse of reclaimed refrigerant in VRV units produced and sold in Europe.
- Page 17 12 About the units and options Specification 5 HP 8 HP Maximum relative Heating humidity around the Cooling compressor unit and heat exchanger unit To avoid condensation and water dripping out of the unit. If the temperature or the humidity is beyond these conditions, safety devices may be put in action and the air conditioner may not operate.
- Page 18 13 Unit installation 8 Perform a test run. See the "Commissioning" chapter. 2 If you want to make field settings, remove the inspection cover. 5 HP 8 HP Unit installation 13.1 Preparing the installation site 3 If you want to connect electrical wiring, remove the switch box 13.1.1 Installation site requirements of the cover.
- Page 19 14 Piping installation ▪ Use the suitable adapters for the change-over from inch to mm Piping installation pipes (field supply). ▪ The additional refrigerant calculation has to be adjusted as 14.1 Preparing refrigerant piping mentioned in To determine the additional refrigerant amount. A: Piping between heat exchanger unit and 14.1.1 Refrigerant piping requirements...
- Page 20 14 Piping installation Indoor unit capacity Piping outer diameter size (mm) 2 Actual piping length (equivalent L2+L3+L4≤70 m (90 m) index piping length) Gas pipe Liquid pipe L2+L5+L6≤70 m (90 m) 63~140 15.9 L2+L5+L7≤70 m (90 m) 19.1 3 Total piping length (x=L1+L2+L3+L4+L5+L6+L7) 22.2 Minimum 10 m≤x Maximum in case of x≤300 m 14.1.4...
- Page 21 14 Piping installation ▪ After handling the service port, make sure to tighten the service port cover securely. For the tightening torque, refer to the table below. ▪ Check for refrigerant leaks after tightening the service port cover. Tightening torques Stop valve Tightening torque N•m (turn clockwise to close) size (mm)
- Page 22 14 Piping installation 4 When all gas and oil is recovered from the pinched piping, disconnect the charge hose and close the service ports. a b c d 5 Cut off the lower part of the gas and liquid stop valve pipes along the black line.
- Page 23 14 Piping installation Leak test and vacuum drying Checking the refrigerant piping involves: ▪ 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 24 14 Piping installation Manifold Connections Compressor unit NOTICE 5 HP Circuit 1 and 2 ALWAYS use a recommended bubble test solution from p < p > together your wholesaler. NEVER use soap water: ▪ Soap water may cause cracking of components, such as flare nuts or stop valve caps.
- Page 25 14 Piping installation Additional refrigerant to be charged [in kg and rounded off to 1 decimal place] Total length [m] of liquid piping size at Øa 1...3 Parameters A and B Parameters A and B: Model RKXYQ5 0.8 kg 3.1 kg RKXYQ8 1.0 kg 2.6 kg Metric piping.
- Page 26 14 Piping installation Nitrogen 7 Take all the precautions mentioned in "16 Configuration" [ 4 29] Weighing scales and "17 Commissioning" [ 4 36] into account. Refrigerant R410A tank (siphon system) Vacuum pump 8 Turn on the power of the indoor units, compressor unit and heat Liquid line stop valve (circuit 2: to indoor units) exchanger unit.
- Page 27 15 Electrical installation Power supply: Compressor unit Contains fluorinated greenhouse gases RXXX 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 GWP: XXX earth leakage protector in accordance with the applicable legislation. Selection and sizing of the wiring should be done in accordance with the applicable legislation based on the information mentioned in the GWP ×...
- Page 28 15 Electrical installation Branches NOTICE No branching is allowed after branching. Shielded cable. Using shielded cable for the transmission wiring is mandatory for 5 HP, and optional for 8 HP. 5 HP 8 HP RKXYQ5 RDXYQ5 RKXYQ8 RDXYQ8 X1M (A1P) F1 F2 F1 F2 a1, a2 Earth (use the screw delivered as accessory) When using shielded cable:...
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Page 29: About Making Field Settings
16 Configuration 8 HP 16.1 Making field settings 16.1.1 About making field settings To configure the heat pump system, you must give input to the compressor unit's main PCB (A1P). This involves the following field ≥50 mm setting components: ▪ Push buttons to give input to the PCB ▪... -
Page 30: To Access Mode 1 Or 2
16 Configuration 5 HP 8 HP Model Display 5 HP 7‑LEDs display: ▪ H1P: Shows the mode ▪ H2P~H7P: Shows the settings and values, TEST/ represented in binary code MODE MASTER SLAVE L.N.O.P. DEMAND MULTI (H8P: NOT used for field settings, but used during initialisation) 8 HP 7‑segments display (... -
Page 31: To Use Mode 1 (And Default Situation)
16 Configuration Switching between modes Action Button/display BS1 [1×] Use BS1 to switch between the default situation, mode 1 and Quit mode 1. mode 2. 5 HP Example: 7‑segments display – Mode 1 (in case of 8 HP) You can read out setting [1‑10] (= the total number of connected units (heat exchanger unit + indoor units)) as follows: Action Button/display... -
Page 32: Mode 1 (And Default Situation): Monitoring Settings
16 Configuration Action Button/display Value / Description Start from the default Shows the status of power consumption limitation operation. situation. BS1 [5 s] Select mode 2. Unit is currently not operating under power consumption limitations. BS2 [X×] Select setting 8. Unit is currently operating under power consumption ("X×"... -
Page 33: Mode 2: Field Settings
16 Configuration Setting Value / Description Setting Value / Description [1‑1] Unit is currently not operating under low [1‑5] For more information, see setting [2‑8]. noise restrictions. Shows the status Shows the current Unit is currently operating under low of low noise target noise restrictions. - Page 34 16 Configuration Setting Value Description (5 HP) (8 HP) [2‑9] 0 (default) Auto target temperature during heating operation. (default) 41°C 43°C 46°C [2‑12] 0 (default) Deactivated. Enable the low noise function and/or power (= binary 1) (default) consumption limitation via external control adaptor Activated.
- Page 35 16 Configuration Setting Value Description (5 HP) (8 HP) [2‑25] Level 1 Level 3<Level 2<Level 1 2 (default) Level 2 Low noise operation level via the external control adaptor. (default) If the system needs to be running under low noise Level 3 operation conditions when an external signal is sent to (= binary 4) the unit, this setting defines the level of low noise that...
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Page 36: To Connect The Pc Configurator To The Compressor Unit
17 Commissioning Setting Value Description (5 HP) (8 HP) [2‑82] (in case of 8 HP) 1 (default) Mild (= binary [2‑42]) (in case of 5 HP) (default) Heating comfort setting. Quick This setting is used in conjunction with setting [2‑9]. Powerful 16.1.9 To connect the PC configurator to the 17.2 Checklist before commissioning compressor unit... -
Page 37: Checklist During Commissioning
17 Commissioning Refrigerant leak INFORMATION Check the inside of the unit on refrigerant leakage. If there ▪ It may take 10 minutes to achieve a uniform refrigerant is a refrigerant leak, try to repair the leak. If the repair is state before the compressor starts. -
Page 38: Correcting After Abnormal Completion Of The Test Run
18 Hand-over to the user NOTICE INFORMATION Be sure to turn ON the power 6 hours before operation in Refer to the installation manual of the indoor unit for order to have power running to the crankcase heater and detailed malfunction codes related to indoor units. to protect the compressor. -
Page 39: Error Codes: Overview
19 Troubleshooting 19.1.1 Error codes: Overview In case of 5 HP: Main code Cause Solution ▪ Heat exchanger fan malfunction. In the heat exchanger unit: ▪ Drain pump feedback contact is open. ▪ Check connection on PCB: A1P (X15A) ▪ Check connection on terminal block (X2M) ▪... - Page 40 19 Troubleshooting Main code Cause Solution ▪ No power is supplied to the compressor unit. ▪ Check if all units are powered on. ▪ Transmission wiring malfunction ▪ Check the transmission wiring. ▪ System mismatch. Wrong type of indoor units combined ▪...
- Page 41 19 Troubleshooting Main code Sub code Cause Solution Heat exchanger gas sensor malfunction Check connection on PCB or actuator. Heat exchanger unit: (R2T) - A1P (X18A) Suction temperature sensor malfunction Check connection on PCB or actuator. Compressor unit: (R3T) - A1P (X30A) Suction temperature sensor malfunction Check connection on PCB or actuator.
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Page 42: Technical Data
▪ A subset of the latest technical data is available on the regional Daikin website (publicly accessible). 5 HP ▪ The full set of latest technical data is available on the Daikin Business Portal (authentication required). S1NPH S1PH... -
Page 43: Wiring Diagram: Compressor Unit
20 Technical data Stop valve (liquid) (circuit 2: to indoor units) R1T (A) Thermistor (air) Stop valve (liquid) (circuit 1: to heat exchanger unit) R2T (A) Thermistor (gas) Stop valve (gas) (circuit 1: to heat exchanger unit) R3T (A) Thermistor (coil) Service port (refrigerant charge) R21T (B) Thermistor (discharge) -
Page 44: Disposal
21 Disposal Cool/heat selector switch (optional) SEG1~SEG3 7-segment display IGBT power module (A2P) Earth leakage detector Diode module (A2P) IGBT power module (A3P) Terminal strip (power supply) Diode module (A3P) Terminal strip (transmission wiring) X37A Connector (power supply for option PCB) (optional) Connector X66A Connector (cool/heat selector switch) (optional) - Page 48 4P499900-1 A 00000001 4P499900-1A 2020.10 Verantwortung für Energie und Umwelt...