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Summary of Contents for Daikin RXYQQ8T7Y1B
- Page 1 INSTALLATION AND OPERATION MANUAL System Air Conditioner RXYQQ8T7Y1B RXYQQ10T7Y1B RXYQQ12T7Y1B RXYQQ14T7Y1B RXYQQ16T7Y1B RXYQQ18T7Y1B RXYQQ20T7Y1B...
- Page 2 (S1NPL) (S1NPH) (S1NPH) (S1NPL) (S2PH) (S3PH) (S3PH) (S4PH) (S1PH) (S1PH) (S2PH) R21T R22T R21T 10-12HP 10-12HP...
- Page 3 2P329110-3C...
- Page 4 2P329110-3C...
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Page 5: Installation Manual
Operation manual ................50 5. Overview of unit ................. 6 5.1. Opening the unit ................6 Thank you for purchasing this Daikin VRV IV system. 5.2. Main components in the unit ............6 5.3. Main components in the electrical component box ......7 The original instructions are written in English. -
Page 6: General Safety Precautions
Field supply: Introduction Equipment which needs to be installed according to instructions in this manual, but which are not supplied by Daikin. 3.1. General information This installation manual concerns the VRV IV, full inverter driven, heat pump system for replacement purposes. -
Page 7: Combination And Options
The outdoor unit is designed to work in heating mode at ambient INFORMATION temperatures from –20°C to 21°C and in cooling mode at ambient temperatures from –5°C to 43°C. A combination of R410A VRV DX indoor units with non-R410A VRV DX indoor units will block the system. NOTICE Such combinations cannot be used. -
Page 8: Indoor Capacity Range
For this option EKPCCAB* is required which is a dedicated cable to communicate with the outdoor unit. The Pair module only software for the user interface program can be downloaded from Refrigerant R410A the Daikin extranet. Replacement functionality INFORMATION Capacity index VRV IV series Refer to the technical engineering data for the latest option names. - Page 9 See location 1 in the figure above for reference to where following 20 HP accessories are supplied with the unit. Accessory pipes (mm) Øa Øb 8 HP 10 HP 12 HP Accessory pipes Gas pipe (mm) Øa Øb Øa Øb Øa Øb Front connection...
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Page 10: Overview Of Unit
Overview of unit 5.2. Main components in the unit For all the models a piping diagram and outlook drawing are available. Depending on the model type some components in the 5.1. Opening the unit main component list may not be existing in the unit. To gain access to the unit, front plates need to be opened as follows: Main components (see figure... -
Page 11: Main Components In The Electrical Component Box
5.3. Main components in the electrical component box CAUTION Appliance not accessible to the general public, install it in a RXYQQ8~12 secured area, protected from easy access. This appliance is intended to be used by expert or trained users in shops, in light industry and on farms, or for commercial use by lay persons. -
Page 12: Weather Related Precautions
The refrigerant R410A itself is nontoxic, non-flammable and is 6.3. Selecting a location in cold climates safe. If the refrigerant should leak however, its concentration may exceed the allowable limit depending on room size. Due to NOTICE this, it could be necessary to take measures against leakage. Refer to "18. -
Page 13: Dimensions And Service Space
Dimensions and service space 7.2. Service space The space around the unit is adequate for servicing and the minimum space for air inlet and air outlet is available (refer to the figure below 7.1. Dimensions of outdoor unit and choose one of the possibilities). RXYQQ8~12 4-15x22.5 (mm) -
Page 14: Inspecting, Handling And Unpacking The Unit
The installation space required on these drawings are for full 8.3. Unpacking load heating operation without considering possible ice accumulation. CAUTION If the location of the installation is in a cold climate, then all dimensions above should be >500 mm to avoid accumulation of To avoid injury, do not touch the air inlet or aluminium fins ice in between the outdoor units. -
Page 15: Method For Removing Transportation Stay
Refrigerant pipe size and allowable pipe length 9.1. General information NOTICE The refrigerant R410A requires strict cautions for keeping the system clean, dry and tight. Clean and dry: foreign materials (including mineral oils or moisture) should be prevented from getting (mm) mixed into the system. -
Page 16: Selection Of Piping Size
9.3. Selection of piping size 9.3.3. Piping between refrigerant branch kit and indoor unit: E Pipe size for direct connection to indoor unit must be the same as the Determine the proper size referring to following tables and reference connection size of the indoor unit. figure (only for indication). -
Page 17: Selection Of Refrigerant Branch Kits
In case the required pipe sizes (inch sizes) are not available, it is 9.5. System piping (length) limitations also allowed to use other diameters (mm sizes), taken the 9.5.1. Piping length restrictions following into account: Select the pipe size nearest to the required size. Make sure to perform the piping installation within the range of the Use the suitable adapters for the change-over from inch maximum allowable pipe length, allowable level difference and... - Page 18 9.5.2. System containing VRV DX indoor units System setup Branch with refnet joint and refnet Branch with refnet joint header Branch with refnet header Single outdoor Example 1.2 Example 1.3 Example 1.1 Multi outdoor Indoor unit Refnet joint Refnet header Example 2.1 Outdoor multi connection piping...
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Page 19: Multi System Piping Installation
Increase the pipe size as follows: Prohibited patterns: change to pattern 1 or 2. 9.5 → 12.7; 12.7 → 15.9; 15.9 → 19.1; 19.1 → 22.2; 22.2 → 25.4 ; 28.6 → 31.8 ; 34.9 → 38.1 Example: unit 8: b+c+d+e+f+g+p≤90 m and b+c+d+e+f+g >40 m;... -
Page 20: Precautions On Refrigerant Piping
Example: passing piping out through the front. NOTICE 1 Close the areas marked with " ". There are restrictions on the refrigerant pipe connection (When the piping is routed from the front panel.) order between outdoor units during installation in case of a multiple outdoor unit system. -
Page 21: Connecting The Refrigerant Piping
10.2. Connecting the refrigerant piping Connect the vacuuming/recovery unit to service ports of all stop valves. NOTICE Installation shall be done by an installer, the choice of materials and installation shall comply with the applicable legislation. In Europe, EN 378 is the applicable standard that shall be used. - Page 22 Cut the pinched piping off with a pipe cutter just above the 10.2.4. Branching the refrigerant piping brazing point or marking if there is no brazing point. For installation of the refrigerant branching kit, refer to the installation manual delivered with the kit. WARNING Never remove the pinched piping by brazing.
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Page 23: Guidelines For Handling Stop Valve
10.3. Guidelines for handling stop valve 10.3.3. Cautions on handling the stop valve cover The stop valve cover is sealed where indicated by the arrow. 10.3.1. Cautions on handling the stop valve Take care not to damage it. Make sure to keep both stop valves open during operation. ... - Page 24 10.4.1. General guidelines 10.4.4. Setup Use a 2-stage vacuum pump with a non-return valve which can evacuate to a gauge pressure of –100.7 kPa (5 Torr absolute, –755 mm Hg). Connect the vacuum pump to the service port of all stop valves ...
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Page 25: Pipe Insulation
If there is a possibility that condensation on the stop valve might NOTICE drip down into the indoor unit through gaps in the insulation and piping because the outdoor unit is located higher than the indoor Make sure to use a recommended bubble test solution unit, this must be prevented by sealing up the connections. -
Page 26: Internal Wiring – Parts Table
Point of attention regarding quality of the public electric power WARNING supply A main switch or other means for disconnection, This equipment complies with respectively: having a contact separation in all poles, must be EN/IEC 61000-3-11 provided that the system impedance Z ... -
Page 27: System Overview Of Field Wiring
K4R......Magnetic relay (Y2S) WHT ...... White K5R......Magnetic relay (Y4S) YLW ....... Yellow K6R......Magnetic relay (Y5S) K7R......Magnetic relay (E1HC) Connector for optional accessories: K8R......Magnetic relay (E2HC) X14A...... Connector (drain pan heater) K10R...... Magnetic relay (option) X37A...... Connector (power adapter) K11R...... -
Page 28: Requirements
12.6. Routing It is important to keep the power supply and the transmission wiring separated from each other. In order to avoid any electrical interference the distance between both wiring should always be at least 25 mm. 12.6.1. Transmission wiring routing The transmission wiring outside the unit should be wrapped and 1 Electrical component box cover routed together with the field piping. - Page 29 1 Liquid pipe RXYQQ14~20 2 Gas pipe 3 Insulator 4 Transmission wiring (F1/F2) 5 Finishing tape For the above wiring, always use vinyl cords with 0.75 to 1.25 mm sheath or cables (2-core wires). (3-core wire cables are allowable for the cooler/heater changeover user interface only.) NOTICE Be sure to keep the power line and transmission line...
- Page 30 Front side. In order to route the power supply from the front side, RXYQQ14~20 the available knockout holes (C) can be used: Fix the power supply cable to the foreseen wire clips with a tie wrap. See figures below, item 2. ...
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Page 31: Connection
12.7. Connection 12.7.2. Connection of wiring to terminals Transmission wiring in outdoor unit This chapter gives an explanation how to route and connect the wiring within the unit. 12.7.1. Connection of transmission wiring to the system In case of single outdoor unit installation F2 Q1 Q2 TO IN/D UNIT TO OUT/D UNIT TO MULTI UNIT F1 F2... -
Page 32: Making Field Settings
Connecting the power supply to multiple outdoor units 7 Earth wire (GRN/YLW) 8 Clamp the power supply to the plastic bracket using a field To connect the power supply for multiple outdoor units to each other, supplied clamp to prevent external force being applied to the terminal. -
Page 33: Operating The Push Buttons And Dip Switches On The Logic Board
Location of the segment displays, buttons and DIP switches: When above situation cannot be confirmed after 12 min, the malfunction code can be checked on the indoor unit user interface and the outdoor unit segment display. Solve the malfunction code accordingly. -
Page 34: Connecting The Pc Configurator To The Outdoor Unit
Mode 2 13.3. Connecting the PC configurator to the outdoor unit Mode 2 is used to set field settings of the outdoor unit and system. Changing and access the setting in mode 2: Connection of the optional PC configurator cable to the outdoor unit Once mode 2 is selected (push BS1 for more than 5 seconds), has to be done on A1P. -
Page 35: Important Information Regarding The Refrigerant Used
14.2. Important information regarding the refrigerant 14.3. Calculating the additional refrigerant charge used NOTICE This product contains fluorinated greenhouse gases covered by the Kyoto Protocol. Do not vent gases into the atmosphere. The refrigerant charge of the system must be less than 100 kg. -
Page 36: Method For Adding Refrigerant
14.4. Method for adding refrigerant INFORMATION If it is not possible to determine exact piping lengths of the existing field piping, it is difficult to calculate the additional refrigerant charge exactly as explained above. In such a case, make an estimation based on the known lengths and diameters by using the formula as in "14.3.1. - Page 37 << Continuation of previous page << Continuation of previous page Heating charging Cooling charging ("t22" startup control) ("t02" startup control) ("t23" waiting for stable heating) ("t03" waiting for stable cooling) "t23" is flashing "t03" is flashing • Push BS2 within 5 minutes •...
- Page 38 To speed up the process of pre-charging refrigerant for large CAUTION systems, it is recommended to first charge a portion of the refrigerant before performing automatic or manual charging. This step is When charging a system, charging over the included in below procedure.
- Page 39 Heating (middle segment indicates "2") INFORMATION Charging will continue, the segment indication intermittently shows the current low pressure value and the status indication For a multi outdoor unit system, it is not required to "t23". connect all charge ports to a refrigerant tank. When the remaining additional refrigerant amount is charged, The refrigerant will be charged with ±22 kg in 1 hour time close valve A immediately and push BS3 to stop charging...
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Page 40: Checks Before Initial Start Up
15. Start-up and configuration Perform the test procedure as described in "15.4. Test operation" on page Adding refrigerant by using the manual charging function INFORMATION 6B The remaining additional refrigerant charge can be charged by operating the outdoor unit by means of the manual refrigerant It is important that all information in this chapter is read charge operation mode: sequentially by the installer and that the system is... -
Page 41: Monitoring Function And Field Settings
14 Additional refrigerant charge [1-2]= shows the status of power consumption limitation The amount of refrigerant to be added to the unit shall be written operation on the included "Added refrigerant" plate and attached to the 1=unit currently operating under power ... - Page 42 15.2.2. Mode 2 Change [2-9]=0, 1, 3 or 6 in function of required operation method during heating. Mode 2 is used to change the field settings of the system. Consulting the current field setting value and changing the current field setting For more information and advice about the impact of value is possible.
- Page 43 [2-25]= Low noise operation level via the external control [2-31]= Power consumption limitation level (step 2) via the adaptor external control adaptor (DTA104A61/62). If the system needs to be running under low noise If the system needs to be running under power operation conditions when an external signal is sent to consumption limitation conditions when an external the unit, this setting defines the level of low noise that...
- Page 44 Hi-sensible/economic (cooling/heating) [2-82]= Heating comfort setting. The refrigerant temperature is set higher/lower (cooling/heating) Default value=1 compared to basic operation. The focus under high sensible mode is comfort feeling for the customer. Value The selection method of indoor units is important and has to be [2-82] Heating comfort setting considered as the available capacity is not the same as under...
- Page 45 Quick Overshoot (during heating operation) or undershoot (during cooling operation) is allowed compared to the requested refrigerant temperature, in order to achieve the required room temperature very fast. The overshoot is allowed from the start up moment. In case of cooling operation the evaporating temperature is allowed to go down to 6°C on temporary base depending on the situation.
- Page 46 Example: Automatic mode during cooling Example: Automatic mode during heating 100% 100% 49°C 46°C 6°C 3°C 35°C A Actual load curve 2°C B Virtual load curve (initial capacity automatic mode) A Virtual load curve (default automatic mode peak capacity) C Virtual target value (initial evaporation temperature value automatic mode) B Load curve D Required evaporation temperature value...
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Page 47: Test Operation
No matter which control is selected, variations on the behaviour of NOTICE the system are still possible due to protection controls to keep the unit operating under reliable conditions. The intentional target, To protect the compressor, be sure to turn on the power however, is fixed and will be used to obtain the best balance between supply 6 hours before starting operation. -
Page 48: Malfunction Code List
Check the test operation results on the outdoor unit segment 15.5. Malfunction code list display. In case of a displayed malfunction code, perform correcting actions Normal completion: no indication on the segment display as explained in the malfunction code table. (idle) Abnormal completion: indication of malfunction code on the After correcting the abnormality, press BS3 to reset the malfunction... - Page 49 Malfunction code Main Sub code code Master/slave 1/slave 2 Contents Solution 06/08/10 High pressure sensor malfunction (S1NPH): open circuit - Check connection on PCB or actuator A1P (X32A) 07/09/11 High pressure sensor malfunction (S1NPH): short circuit - Check connection on PCB or actuator A1P (X32A) 06/08/10 Low pressure sensor malfunction (S1NPL): open circuit - A1P...
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Page 50: Operation Of The Unit
Information code Main code Contents Solution Auto charging related Unusual low pressure on suction line Close valve A immediately. Push to reset. Check following items before retrying autocharge procedure: • Check if the gas side stop valve is opened correctly. •... -
Page 51: Service Mode Operation
1 Direction of the refrigerant flow NOTICE 2 Room where refrigerant leak has occurred (outflow of all the refrigerant from the system) Play it safe. For protection of the PCB, touch the switch Pay special attention to places, such as basements etc., where box casing by hand in order to eliminate static electricity refrigerant can stay, since refrigerant is heavier than air. -
Page 52: Disposal Requirements
Calculate the refrigerant density taking the volume of the room RXYQQ8 RXYQQ10 RXYQQ12 RXYQQ14 where the indoor unit is installed and the adjacent room. Safety devices • High pressure switch Install ventilation openings in the door of adjacent rooms until •... -
Page 53: Electrical Specifications
20.2. Electrical specifications RXYQQ8 RXYQQ10 RXYQQ12 RXYQQ14 Power supply • name • phase • frequency (Hz) • Voltage 380-415 Current • nominal running 10.2 12.7 15.4 current (RLA) • starting current ≤MCA (MSC) • minimum circuit 16.1 22.0 24.0 27.0 amps (MCA) •... -
Page 54: Table Of Contents
........59 Electric current. 11.4. Malfunction codes ................ 59 Thank you for purchasing this Daikin VRV IV replacement system. Danger of burning and scalding. The original instructions are written in English. All other languages are translations of the original instructions. -
Page 55: Introduction
Equipment which needs to be installed according to instructions in such animals can cause malfunctions, smoke or fire this manual, but which are not supplied by Daikin. when making contact with electrical parts. Ask your dealer for improvement, repair, and ... - Page 56 WARNING NOTICE Do not install the air conditioner at any place where Never put any objects into the air inlet or outlet. flammable gas may leak out. If the gas leaks out and Objects touching the fan at high operating speed can stays around the air conditioner, a fire may break out.
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Page 57: System Layout
Operation procedure 2.2. System layout Your VRV IV replacement heat pump series outdoor unit can be as Operation procedure varies according to the combination of follows: outdoor unit and user interface. To protect the unit, turn on the main power switch 6 hours before ... -
Page 58: Program Dry Operation
Adjustment Starting the system Press the operation mode selector button on the user interface For programming temperature, fan speed and air flow direction refer several times and select (program dry operation). to the operation manual of the user interface. Press the ON/OFF button of the user interface. The operation Stopping the system lamp lights up and the system starts operating. -
Page 59: Setting The Master User Interface
For the following conditions, a micro computer controls the air flow 6.5. Precautions for group control system or two user direction which may be different from the display. interface control system COOLING HEATING This system provides two other control systems beside individual control system (one user interface controls one indoor unit). -
Page 60: Maintenance
Maintenance Three main operation methods are available: Basic The refrigerant temperature is fixed independent from the situation. It CAUTION corresponds to the standard operation which is known and can be Pay attention to the fan. expected from/under previous VRV systems. Automatic It is dangerous to inspect the unit while the fan is running. - Page 61 Symptom 3: Fan operation is possible, but cooling and heating Symptom 8.2: Indoor unit, outdoor unit do not work A continuous low hissing sound is heard when the system is in Immediately after the power is turned on. The micro computer is cooling or defrost operation.
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Page 62: Troubleshooting
10. Troubleshooting 11. After-sales service and warranty If one of the following malfunctions occur, take the measures shown 11.1. Warranty period below and contact your dealer. This product includes a warranty card that was filled in by the WARNING dealer at the time of installation. -
Page 63: Shortening Of "Maintenance Cycle" And "Replacement Cycle" Needs To Be Considered In Following Situations
11.4. Malfunction codes NOTICE In case a malfunction code appears on the indoor unit user interface Table 1 indicates main components. Refer to your display, contact your installer and inform the malfunction code, the maintenance and inspection contract for more details. unit type, and serial number (you can find this information on the Table 1 indicates... - Page 64 Malfunction code Main code Contents Transmission outdoor unit - inverter: INV transmission trouble INV unbalanced power supply voltage Autocharge operation related Fin thermistor malfunction Autocharge operation related Autocharge operation related Autocharge operation related Capacity setting malfunction (outdoor) Abnormal low pressure drop, faulty expansion valve Reversed power supply phase malfunction INV voltage power shortage System test run not yet executed...
- Page 68 *4P345099-1 0000000S* 4P345099-1 2013.04...
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