Related Manuals for Daikin VRV IV i Series
Summary of Contents for Daikin VRV IV i 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 1 (and default situation): Monitoring settings ..31 16.1.8 Mode 2: Field settings..........33 ▪ The full set of latest technical data is available on the Daikin 16.1.9 To connect the PC configurator to the compressor Business Portal (authentication required). - 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 concerning use of the appliance in a Instructions for safe operation safe way and understand the hazards CAUTION involved. ▪ NEVER touch the internal parts of the Children SHALL NOT play with the controller. appliance. ▪ Do NOT remove the front panel. Cleaning and user maintenance Some parts inside are dangerous to SHALL NOT be made by children...
- 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 Make 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 ...
- 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 About the box For the installer About the box 11.1 Compressor unit (10.1 N·m) 11.1.1 To remove the accessories from the compressor unit · 1 Remove the accessories (part 1). 1× 1× 1× 1× 1× 3× 11.1.3 To remove the transportation EPS Only for RKXYQ8.
- Page 17 12 About the units and options 12.2 System layout NOTICE Design of the system must not be done at temperatures below –15°C. VRV DX VRV DX VRV DX EKEXV In case of VRV DX indoor units 3 Mount the PCB. In case of VRV DX indoor units combined with an air handling unit Heat exchanger unit Compressor unit...
- 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 Tightening torques Stop valve Tightening torque N•m (turn clockwise to close) size (mm) Shaft Valve body Hexagonal Cap (valve Service wrench lid) port Ø9.5 5.4~6.6 4 mm 13.5~16.5 11.5~13.9 Ø12.7 8.1~9.9 18.0~22.0 Ø19.1 27.0~33.0 8 mm 22.5~27.5 14.2.2 To remove the pinched pipes WARNING WARNING Any gas or oil remaining inside the stop valve may blow off...
- Page 22 14 Piping installation a b c d Cut the insulation (under the knockout hole). Hit on the knockout hole, and remove it. WARNING Remove the burrs. Paint the edges and areas around the edges using repair Provide adequate measures to prevent that the unit can be paint to prevent rusting.
- Page 23 14 Piping installation Leak test and vacuum drying Manifold Connections Compressor unit 5 HP Checking the refrigerant piping involves: Circuit 1 and 2 p < p > together ▪ Checking for any leakages in the refrigerant piping. ▪ Performing vacuum drying to remove all moisture, air or nitrogen in the refrigerant piping.
- Page 24 14 Piping installation NOTICE ALWAYS use a recommended bubble test solution from your wholesaler. NEVER use soap water: ▪ Soap water may cause cracking of components, such as flare nuts or stop valve caps. ▪ Soap water may contain salt, which absorbs moisture that will freeze when the piping gets cold.
- Page 25 14 Piping installation Additional refrigerant to be charged [in kg and rounded off Gas line stop valve (circuit 1: to heat exchanger unit) Gas line stop valve (circuit 2: to indoor units) to 1 decimal place] Liquid line stop valve (circuit 2: to indoor units) Total length [m] of liquid piping size at Øa 1...3 Vacuum pump...
- Page 26 15 Electrical installation 7 Take all the precautions mentioned in "16 Configuration" [ 4 28] Contains fluorinated greenhouse gases and "17 Commissioning" [ 4 36] into account. RXXX 8 Turn on the power of the indoor units, compressor unit and heat GWP: XXX exchanger unit. 9 Activate setting [2‑20] to start the manual additional refrigerant charge mode.
- Page 27 15 Electrical installation Power supply: Compressor unit Branches The power supply must be protected with the required safety No branching is allowed after branching. devices, i.e. a main switch, a slow blow fuse on each phase and an 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 table below.
- Page 28 16 Configuration 8 HP NOTICE 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 ≥50 mm 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: To Access The Field Setting Components
16 Configuration 5 HP 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 TEST/ compressor unit's main PCB (A1P). This involves the following field MODE MASTER SLAVE L.N.O.P. -
Page 30: To Access Mode 1 Or 2
16 Configuration Switching between modes Model Display Use BS1 to switch between the default situation, mode 1 and 5 HP 7‑LEDs display: mode 2. ▪ H1P: Shows the mode 5 HP ▪ H2P~H7P: Shows the settings and values, represented in binary code (H8P: NOT used for field settings, but used during initialisation) 8 HP... -
Page 31: To Use Mode 2
16 Configuration Action Button/display Action Button/display BS1 [1×] Quit mode 1. Start from the default situation. BS1 [5 s] Select mode 2. Example: 7‑segments display – Mode 1 (in case of 8 HP) BS2 [X×] Select setting 8. You can read out setting [1‑10] (= the total number of connected ("X×"... - Page 32 16 Configuration Value / Description Setting Value / Description Shows the status of power consumption limitation operation. [1‑1] Unit is currently not operating under low noise restrictions. Shows the status Unit is currently operating under low of low noise Unit is currently not operating under power noise restrictions.
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Page 33: Mode 2: Field Settings
16 Configuration Setting Value / Description Setting Value / Description [1‑17] When the latest malfunction codes were reset by [1‑40] For more information, see setting [2‑81]. accident on an indoor unit user interface, they Shows the latest Shows the current can be checked again through this monitoring malfunction code. - Page 34 16 Configuration Setting Value Description (5 HP) (8 HP) [2‑16] 0 (default) — Deactivated. — Activated. Test run heat exchanger unit. When activated, the heat exchanger fans start running. This allows you to check the ducting with a running heat exchanger unit. [2‑20] 0 (default) Deactivated.
- Page 35 16 Configuration Setting Value Description (5 HP) (8 HP) [2‑30] — Power consumption limitation level (step 1) via the external control adaptor (DTA104A61/62). 3 (default) If the system needs to be running under power (= binary 2) (default) consumption limitation conditions when an external —...
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Page 36: To Connect The Pc Configurator To The Compressor Unit
17 Commissioning 16.1.9 To connect the PC configurator to the Installation compressor unit Check that the unit is properly installed, to avoid abnormal noises and vibrations when starting up the unit. 5 HP 8 HP Field wiring Be sure that the field wiring has been carried out according to the instructions described in the chapter Connecting the electrical wiring, according to the wiring diagrams and according to the applicable legislation. -
Page 37: Checklist During Commissioning
17 Commissioning Drainage Step Description Control before start up (pressure Make sure drainage flows smoothly. equalisation) Possible consequence: Condensate water might drip. Cooling start up control External static pressure Cooling stable condition Make sure the external static pressure is set. Communication check Possible consequence: Insufficient cooling or heating. -
Page 38: Correcting After Abnormal Completion Of The Test Run
18 Hand-over to the user 4 Check the test operation results on the compressor unit ▪ Make sure that the user has the printed documentation and ask 7‑segment display. him/her to keep it for future reference. Inform the user that he can find the complete documentation at the URL mentioned earlier in Completion Description... - Page 39 19 Troubleshooting Main code Cause Solution ▪ The stop valves of the compressor unit are left closed. ▪ Open the stop valves on both the gas and liquid side. ▪ Insufficient refrigerant ▪ Check if the additional refrigerant charge has been finished correctly.
- Page 40 19 Troubleshooting In case of 8 HP: Main code Sub 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 41 19 Troubleshooting Main code Sub code Cause Solution High pressure sensor malfunction Check connection on PCB or actuator. Compressor unit: (S1NPH): open circuit - A1P (X32A) High pressure sensor malfunction Check connection on PCB or actuator. Compressor unit: (S1NPH): short circuit - A1P (X32A) Low pressure sensor malfunction Check connection on PCB or actuator.
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Page 42: Technical Data
Fan motor R1T (A) Thermistor (air) Daikin website (publicly accessible). R2T (A) Thermistor (gas) ▪ The full set of latest technical data is available on the Daikin R3T (A) Thermistor (coil) R2T (B) Thermistor (discharge) Business Portal (authentication required). R3T (B) -
Page 43: Wiring Diagram: Compressor Unit
20 Technical data Subcool heat exchanger Thermistor (liquid) Pressure regulating valve R10T Thermistor (fin) Capillary tube Accumulator S1NPL Low pressure sensor Oil separator Heat exchanger S1NPH High pressure sensor Compressor S1PH High pressure switch M1F~M3F Fan motor R1T (A) Thermistor (air) Cool/heat selector switch (optional) R2T (A) Thermistor (gas) -
Page 44: Disposal
21 Disposal S1NPH High pressure sensor S1NPL Low pressure sensor S1PH High pressure switch (discharge) Air control switch (optional) Cool/heat selector switch (optional) SEG1~SEG3 7-segment display Earth leakage detector IGBT power module (A3P) Diode module (A3P) X37A Connector (power supply for option PCB) (optional) X66A Connector (cool/heat selector switch) (optional) Terminal strip (power supply) - Page 48 4P499900-1 B 00000002 4P499900-1B 2021.12 Verantwortung für Energie und Umwelt...