Daikin VRV IV+ RYYQ12U7Y1B Series Installer And User Manual
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Installer and user
reference guide
VRV IV+ heat pump
RYYQ8U7Y1B*
RYYQ10U7Y1B*
RYYQ12U7Y1B*
RYYQ14U7Y1B*
RYYQ16U7Y1B*
RYYQ18U7Y1B*
RYYQ20U7Y1B*
RYMQ8U7Y1B*
RYMQ10U7Y1B*
RYMQ12U7Y1B*
RYMQ14U7Y1B*
RYMQ16U7Y1B*
RYMQ18U7Y1B*
RYMQ20U7Y1B*
RXYQ8U7Y1B*
RXYQ10U7Y1B*
RXYQ12U7Y1B*
RXYQ14U7Y1B*
RXYQ16U7Y1B*
Installer and user reference guide
RXYQ18U7Y1B*
English
VRV IV+ heat pump
RXYQ20U7Y1B*
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Table of Contents
Troubleshooting
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Summary of Contents for Daikin VRV IV+ RYYQ12U7Y1B Series
- Page 1 Installer and user reference guide VRV IV+ heat pump RYYQ8U7Y1B* RYYQ10U7Y1B* RYYQ12U7Y1B* RYYQ14U7Y1B* RYYQ16U7Y1B* RYYQ18U7Y1B* RYYQ20U7Y1B* RYMQ8U7Y1B* RYMQ10U7Y1B* RYMQ12U7Y1B* RYMQ14U7Y1B* RYMQ16U7Y1B* RYMQ18U7Y1B* RYMQ20U7Y1B* RXYQ8U7Y1B* RXYQ10U7Y1B* RXYQ12U7Y1B* RXYQ14U7Y1B* RXYQ16U7Y1B* Installer and user reference guide RXYQ18U7Y1B* English VRV IV+ heat pump RXYQ20U7Y1B*...
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Page 2: Table Of Contents
Table of contents 6.4.1 Precautions when connecting the refrigerant piping ..21 Table of contents 6.4.2 About connecting the refrigerant piping ....... 22 6.4.3 To route the refrigerant piping........22 6.4.4 To connect the refrigerant piping to the outdoor unit ... 22 6.4.5 To connect the multi connection piping kit .... -
Page 3: General Safety Precautions
1 General safety precautions 9 Maintenance and service 19.1 Error codes: Overview..............67 19.2 Symptoms that are NOT system malfunctions ......68 Overview: Maintenance and service ......... 49 19.2.1 Symptom: The system does not operate ..... 68 Maintenance safety precautions..........49 19.2.2 Symptom: Cool/Heat cannot be changed over .... -
Page 4: For The User
▪ If you are NOT sure how to operate the unit, contact your installer. comply with applicable legislation (on top of the instructions described in the Daikin documentation). ▪ This appliance can be used by children aged from 8 years and... -
Page 5: Installation Site
1 General safety precautions In accordance with the applicable legislation, it might be necessary DANGER: RISK OF EXPLOSION to provide a logbook with the product containing at least: information Pump down – Refrigerant leakage. If you want to pump on maintenance, repair work, results of tests, stand-by periods,… down the system, and there is a leak in the refrigerant Also, at least, following information MUST be provided at an circuit:... -
Page 6: Brine
1 General safety precautions CAUTION WARNING When the refrigerant charging procedure is done or when ▪ ONLY use copper wires. pausing, close valve refrigerant tank ▪ Make sure the field wiring complies with the applicable immediately. If the valve is NOT closed immediately, 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
3 About the box ▪ Take care not to damage the unit when removing the shrink foil Accessory pipes: Diameters with a cutter. ▪ Remove the 4 bolts fixing the unit to its pallet. Accessory pipes (mm) Øa Øb Gas pipe 25.4 19.1 WARNING... -
Page 9: About The Units And Options
4 About the units and options The RYYQ models provide continuous comfort during About the units and options defrost operation. Depending on the type of outdoor unit which is chosen, some functionality will or will not exist. It will be indicated throughout this Overview: About the units and installation manual and brought to your attention. -
Page 10: Possible Combinations Of Indoor Units
4 About the units and options 4.5.2 Possible combinations of indoor units 4.5.4 Possible options for the outdoor unit In general following type of indoor units can be connected to a VRV INFORMATION IV heat pump system. The list is non-exhaustive and is depending Refer to the technical engineering data for the latest option on both outdoor unit model and indoor unit model combinations. -
Page 11: Preparation
5 Preparation Preparation Overview: Preparation This chapter describes what you have to do and know before going on-site. It contains information about: (mm) ▪ Preparing the installation site Personal computer or radio ▪ Preparing the refrigerant piping Fuse Earth leakage protector ▪... -
Page 12: Additional Installation Site Requirements Of The Outdoor Unit In Cold Climates
If the unit has to operate for 5 days in this area with ▪ To prevent exposure to wind and snow, install a baffle plate on the high humidity (>90%), Daikin recommends to install the air side of the outdoor unit: optional heater tape kit (EKBPH012TA or EKBPH020TA) to keep the drain holes free. -
Page 13: Preparing Refrigerant Piping
5 Preparation Formula F/G≤H Total volume of refrigerant in the refrigerant system Size (m ) of smallest room in which there is an indoor unit installed Maximum concentration level (kg/m 4 Calculate the refrigerant density taking the volume of the room where the indoor unit is installed and the adjacent room. - Page 14 5 Preparation BP box RA DX indoor unit Indoor branch kit Outdoor multi connection kit A, B, C: Piping between outdoor unit and (first) refrigerant branch kit Outdoor unit Choose from the following table in accordance with the outdoor unit Main pipes total capacity type, connected downstream.
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Page 15: To Select Refrigerant Branch Kits
5 Preparation G: Piping between BP unit and RA DX indoor unit RYMQ Equalising pipe Ø (mm) 19.1 Only in case RA DX indoor units are connected. 10~16 22.2 Indoor unit capacity Piping outer diameter size (mm) 18~20 28.6 index Gas pipe Liquid pipe Deciding the equalising pipe diameter: 20, 25, 30... -
Page 16: Piping Length: Vrv Dx Only
5 Preparation 5.3.5 Piping length: VRV DX only Actual piping 165 m/135 m length Example 1.1 For system only containing VRV DX indoor units: ▪ unit 8: a+b+c+d+e+f+g+p≤165 m System setup Example 1.2 Example Description ▪ unit 6: a+b+h≤165 m Example 1.1 Single outdoor ▪ unit 8: a+i+k≤165 m Branch with refnet joint Example 1.3 ▪... -
Page 17: Piping Length: Vrv Dx And Hydrobox
5 Preparation Example 1.3: unit 8: i≤40 m Example Description However, extension is possible if all below conditions are met. In this Example 3 Branch with refnet case limitation can be extended up to 90 m. header VRV DX indoor units Outdoor units Hydrobox unit (HXY080/125) Refnet joints (A~G) Maximum allowable length... -
Page 18: Multiple Outdoor Units: Possible Layouts
5 Preparation VRV DX indoor units Allowed ▪ To avoid the risk of oil retention to the outmost outdoor unit, Maximum allowable length always connect the stop valve and the piping between outdoor ▪ Between outdoor unit and indoor unit. units as shown in the 4 correct possibilities of the figure below. Actual piping 100 m length... -
Page 19: Preparing Electrical Wiring
5 Preparation ▪ EN/IEC 61000‑3‑11 provided that the system impedance Z NOTICE less than or equal to Z at the interface point between the user's There are restrictions on the refrigerant pipe connection supply and the public system. order between outdoor units during installation in case of a ▪... -
Page 20: Installation
6 Installation For standard combinations NOTICE Selection and sizing of the wiring should be done in accordance with When using residual current operated circuit breakers, be the applicable legislation based on the information mentioned in the sure to use a high-speed type 300 mA rated residual table below. -
Page 21: Mounting The Outdoor Unit
6 Installation 8~12 HP ▪ The preferred installation is on a solid longitudinal foundation (steel beam frame or concrete). The foundation must be larger than the grey marked area. ≥AB 2× 14~20 HP (mm) Minimum foundation Anchor point (4×) 6× 8~12 14~20 1076... -
Page 22: About Connecting The Refrigerant Piping
6 Installation Drill WARNING Points for drilling Take sufficient precautions in case of refrigerant leakage. If NOTICE refrigerant gas leaks, ventilate the area immediately. Possible risks: Precautions when making knockout holes: ▪ Excessive refrigerant concentrations in a closed room ▪ Avoid damaging the casing. can lead to oxygen deficiency. -
Page 23: Multiple Outdoor Units: Knockout Holes
6 Installation Not allowed 6.4.8 To protect against contamination Allowed Protect the piping as described in the following table to prevent dirt, ▪ Make sure that the total length of the piping connected to the joint liquid or dust from entering the piping. is absolute straight for more than 500 mm. -
Page 24: Using The Stop Valve And Service Port
6 Installation ▪ Do NOT use flux when brazing copper-to-copper refrigerant ▪ After handling the service port, make sure to tighten the service piping. Use phosphor copper brazing filler alloy (BCuP), which port cover securely. For the tightening torque, refer to the table does not require flux. -
Page 25: Checking The Refrigerant Piping
6 Installation NOTICE Make sure that all indoor units connected to the outdoor unit are powered on. NOTICE Wait to apply setting [2‑21] until the outdoor unit has finished the initialisation. Leak test and vacuum drying Checking the refrigerant piping involves: ▪... -
Page 26: To Perform A Leak Test
6 Installation Valve C 1 Evacuate the system for at least 2 hours to a target vacuum of Valve D – 1 00.7 kPa (– 1 .007 bar)(5 Torr absolute). Valve State of valve 2 Check that, with the vacuum pump turned off, the target vacuum is maintained for at least 1 hour. -
Page 27: Charging Refrigerant
6 Installation Method Charging refrigerant Automatic charge "6.7.6 Step 6a: To automatically charge refrigerant" on page 31 6.7.1 Precautions when charging refrigerant Manual charge "6.7.7 Step 6b: To manually charge refrigerant" on page 32 WARNING ▪ Only use R410A as refrigerant. Other substances may INFORMATION cause explosions and accidents. Adding refrigerant using the automatic refrigerant charging ▪... - Page 28 6 Installation ONLY required for RYYQ8~20 models, NOT for Indoor Total CR per type RXYQ8~54 and RYYQ22~54. units VRV DX RA DX ▪ Parameter C: Hydrobox VRV DX + 80~130% 0~130% 0~130% — — Parameter C RA DX Model CR≥100% CR<100% RA DX 80~130% — 80~130% —...
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Page 29: 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 30. Pre-charging refrigerant Step 1 p < p > Calculate additional refrigerant charge amount: R (kg) Step 2+3 R410A • Open valves C, D and B to the liquid and equalising line •... -
Page 30: To Charge Refrigerant
6 Installation << 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 • Push BS2 within 5 minutes •... -
Page 31: Step 6A: To Automatically Charge Refrigerant
6 Installation p < p > NOTICE ▪ The refrigerant charging port is connected to the piping inside the unit. The unit's internal piping is already factory charged with refrigerant, so be careful when connecting the charge hose. R410A ▪ After adding the refrigerant, do not forget to close the lid of the refrigerant charging port. -
Page 32: Step 6B: To Manually Charge Refrigerant
6 Installation 4 When " " or " " starts flashing (ready for charging), push INFORMATION BS2 within 5 minutes. Open valve A. If BS2 is not pushed within ▪ When a malfunction is detected during the procedure 5 minutes, a malfunction code will appear: (e.g, in case of closed stop valve), a malfunction code will be displayed. -
Page 33: Error Codes When Charging Refrigerant
6 Installation If a multilingual fluorinated greenhouse gases label is 6.7.8 Error codes when charging refrigerant delivered with the unit (see accessories), peel off the applicable language and stick it on top of a. Code Cause Solution Factory refrigerant charge: see unit name plate Additional refrigerant amount charged Unusual low pressure on Close valve A... -
Page 34: Field Wiring: Overview
6 Installation Main switch WARNING Earth connection Outdoor unit ▪ After finishing the electrical work, confirm that each Indoor unit electrical component and terminal inside the electrical User interface components box is connected securely. Indoor power supply wiring (sheathed cable) (230 V) Transmission wiring (sheathed cable) (16 V) ▪... -
Page 35: Guidelines When Knocking Out Knockout Holes
6 Installation Master/slave transmission wiring Knockout hole has to be removed. Close the hole to avoid small animals or dirt from entering. For the above wiring, always use vinyl cords with 0.75 to 1.25 mm 8~12 HP 14~20 HP sheath or cables (2-core wires). (3-core wire cables are allowable for the cooler/heater changeover user interface only.) 6.8.4 Guidelines when knocking out knockout... -
Page 36: To Finish The Transmission Wiring
6 Installation 8~12 HP 14~20 HP In case of multi outdoor unit installation F1 F2 F1 F2 Q1 Q2 Q1 Q2 Q1 Q2 Unit A (master outdoor unit) Unit B (slave outdoor unit) Unit C (slave outdoor unit) Master/slave transmission (Q1/Q2) Outdoor/indoor transmission (F1/F2) Outdoor unit/other system transmission (F1/F2) INFORMATION... -
Page 37: Configuration
7 Configuration The power supply MUST be clamped to the plastic bracket using Making field settings field supplied clamp material to prevent external force being applied to the terminal. The green and yellow striped wire MUST be used for 7.2.1 About making field settings earthing only. -
Page 38: Field Setting Components
7 Configuration ▪ "7.2.5 To use mode 1" on page 38 7.2.4 To access mode 1 or 2 ▪ "7.2.6 To use mode 2" on page 39 Initialisation: default situation ▪ "7.2.7 Mode 1: Monitoring settings" on page 39 NOTICE ▪ "7.2.8 Mode 2: Field settings" on page 40 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 39: 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 40: Mode 2: Field Settings
7 Configuration ▪ The first method is to enable a forced power consumption ▪ [1‑35]: The latest automatic leak detection execution. limitation by field setting. The unit will always operate at the ▪ [1‑36]: The 2nd last automatic leak detection operation. selected power consumption limitation. - Page 41 7 Configuration [2‑8] [2‑14] Additional amount charged (kg) target temperature during cooling operation. 80<x<85 85<x<90 [2‑8] target (°C) Setting cannot be used. Total refrigerant 0 (default) Auto charge has to be <100 kg. ▪ For details concerning the charging procedure, see "6.7.2 ...
- Page 42 7 Configuration [2‑31] By changing this setting, you activate the automatic low noise operation function of the unit and define the level of operation. Power consumption limitation level (step 2) via the external control Depending on the chosen level, the noise level will be lowered. The adaptor (DTA104A61/62).
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Page 43: To Connect The Pc Configurator To The Outdoor Unit
7 Configuration For more information and advice about the impact of these settings, 7.2.9 To connect the PC configurator to the "7.3 Energy saving and optimum operation" on page 43. outdoor unit [2‑82] Heating comfort setting. This setting is used in conjunction with setting [2‑9]. [2‑82] Heating comfort setting 1 (default) -
Page 44: Available Comfort Settings
7 Configuration idea, the system automatically starts decreasing its refrigerant To activate this in… Change… temperature, automatically reducing the delivered capacity and Heating operation [2‑82]=3. increasing the system's efficiency. This setting is used in To activate this in… Change… conjunction with setting [2‑9] Cooling operation [2‑8]=0 (default) Quick... -
Page 45: Example: Automatic Mode During Cooling
7 Configuration Quick To activate this in… Change… Powerful Heating operation [2‑82]=0. 7.3.4 Example: Automatic mode during heating This setting is used in conjunction with setting [2‑9]. 7.3.3 Example: Automatic mode during cooling 100% 100% 49°C 46°C 6°C 3°C 2°C 35°C Virtual load curve (default automatic mode peak capacity) Load curve... -
Page 46: Using The Leak Detection Function
8 Commissioning Display Leaked amount (kg) Using the leak detection function 2≤x<2.5 7.4.1 About automatic leak detection 2.5≤x<3 3≤x<3.5 The (automatic) leak detection function is not by default activated. 3.5≤x<4 The (automatic) leak detection function can only start working when both below conditions are fulfilled: 4≤x<4.5 4.5≤x<5... -
Page 47: Precautions When Commissioning
8 Commissioning Commissioning typically consists of the following stages: Power supply voltage Checking the "Checklist before commissioning". Check the power supply voltage on the local supply panel. Performing a test run. The voltage MUST correspond to the voltage on the If necessary, correcting errors after abnormal completion of the identification label of the unit. -
Page 48: To Perform A Test Run
8 Commissioning ▪ Check of the stop valves opening. INFORMATION ▪ Judgement of piping length. ▪ It may take 10 minutes to achieve a uniform refrigerant state before the compressor starts. ▪ Gathering reference data for leak detection functionality. If the leak detection functionality is required, the test run needs to be ▪... -
Page 49: Correcting After Abnormal Completion Of The Test Run
9 Maintenance and service 2 Measure the voltage between terminals on the terminal block Correcting after abnormal for power supply with a tester and confirm that the power supply completion of the test run is shut off. In addition, measure points as shown in the figure, with a tester and confirm that the voltage of the capacitor in the The test operation is only completed if there is no malfunction code main circuit is less than 50 V DC. -
Page 50: 10 Troubleshooting
10 Troubleshooting It contains information about: DANGER: RISK OF EXPLOSION ▪ Solving problems based on error codes Pump down – Refrigerant leakage. If you want to pump down the system, and there is a leak in the refrigerant circuit: 10.2 Solving problems based on error ▪... - Page 51 10 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/R9T): ▪...
- Page 52 10 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.
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Page 53: Disposal
11 Disposal Main code Sub code Cause Solution Master Slave 1 Slave 2 Auto address malfunction Check if transmission wired unit (inconsistency) amount matches with powered unit amount (by monitor mode) or wait till initialisation is finished. Stop valve closed or wrong (during Open stop valves. -
Page 54: 12 Technical Data
▪ A subset of the latest technical data is available on the regional a≥10 mm a≥50 mm — Daikin website (publicly accessible). b≥300 mm b≥100 mm ▪ The full set of latest technical data is available on the Daikin c≥10 mm c≥50 mm extranet (authentication required). d≥500 mm d≥500 mm 12.1 Overview: Technical data e≥20 mm... -
Page 55: Piping Diagram: Outdoor Unit
12 Technical data Piping diagram: RYYQ14~20 12.3 Piping diagram: Outdoor unit Piping diagram: RYYQ8~12 (S1NPL) (S1NPH) (S1NPL) (S1NPH) (S1PH) (S2PH) (S1PH) R22T R21T R21T Compressor (M1C) Compressor (M1C) Compressor (M2C) Compressor (M2C) Heat exchanger Heat exchanger Fan motor (M1F, M2F) Fan motor (M1F, M2F) Accumulator Accumulator... - Page 56 12 Technical data Piping diagram: RYMQ8~12 Piping diagram: RYMQ14~20 (S1NPL) (S1NPH) (S1NPH) (S1NPL) (S1PH) R21T (S1PH) (S2PH) R21T R22T Compressor (M1C) Compressor (M2C) Heat exchanger Compressor (M1C) Compressor (M2C) Fan motor (M1F, M2F) Heat exchanger Accumulator Expansion valve, main (Y1E) Fan motor (M1F, M2F) Expansion valve, subcool heat exchanger (Y2E) Accumulator...
- Page 57 12 Technical data Piping diagram: RXYQ8~12 Piping diagram: RXYQ14~20 (S1NPL) (S1NPH) (S1NPL) (S1NPH) (S1PH) (S2PH) (S1PH) R21T R22T R21T Compressor (M1C) Compressor (M2C) Compressor (M1C) Heat exchanger Compressor (M2C) Heat exchanger Fan motor (M1F, M2F) Accumulator Fan motor (M1F, M2F) Expansion valve, main (Y1E) Accumulator Expansion valve, subcool heat exchanger (Y2E)
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Page 58: Wiring Diagram: Outdoor Unit
12 Technical data Motor (compressor) 12.4 Wiring diagram: Outdoor unit Motor (fan) Refer to the wiring diagram sticker on the unit. The abbreviations PS (A1P, Switching power supply used are listed below: A3P) INFORMATION Q1DI Earth leakage circuit breaker (field supply) The wiring diagram on the outdoor unit is only for the Q1LD (A1P) Earth current detector (field supply) outdoor unit. - Page 59 12 Technical data DS1 , DS2 DIP switch X1M (A8P) Terminal block (power supply)(option) (A1P) Electronic expansion valve (main) E1HC Crankcase heater Electronic expansion valve (injection) Drain pan heater (option) Electronic expansion valve (liquid cooling) F1U, F2U Fuse (T 31.5 A / 250 V) Electronic expansion valve (storage vessel) (A1P) Solenoid valve (main)
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Page 60: For The User
13 About the system For the user Depending on the type of outdoor unit which is chosen, some About the system functionality will or will not exist. It will be indicated throughout this operation manual when certain features have exclusive model rights The indoor unit part of VRV IV heat pump system can be used for or not. -
Page 61: Operation
16 Operation CAUTION 16.2.2 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 62: To Operate The System (Without Cool/Heat Changeover Remote Control Switch)
16 Operation 16.2.4 To operate the system (WITHOUT cool/ 16.3 Using the dry program heat changeover remote control switch) 16.3.1 About the dry program 1 Press the operation mode selector button on the user interface several times and select the operation mode of your choice. ▪... -
Page 63: Adjusting The Air Flow Direction
16 Operation User interface (dedicated depending on indoor unit type) 16.4 Adjusting the air flow direction User interface (wireless, dedicated depending on indoor unit type) Refer to the operation manual of the user interface. When the system is installed as shown in the figure above, it is necessary to designate one of the user interfaces as the master user 16.4.1 About the air flow flap... -
Page 64: About Control Systems
17 Energy saving and optimum operation In case you want to keep the VRV DX indoor unit user interface as Several patterns are available and roughly explained below. Contact master, contact your installer. your installer or dealer for advice or to modify the parameters to the needs of your building. -
Page 65: Maintenance After A Long Stop Period
18 Maintenance and service CAUTION NOTICE Do NOT insert fingers, rods or other objects into the air In Europe, the greenhouse gas emissions of the total inlet or outlet. Do NOT remove the fan guard. When the refrigerant charge in the system (expressed as tonnes CO fan is rotating at high speed, it will cause injury. -
Page 66: Recommended Maintenance And Inspection Cycles
19 Troubleshooting 18.4.3 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 67: Error Codes: Overview
19 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 68: Symptoms That Are Not System Malfunctions
19 Troubleshooting ▪ Immediately after the cooling operation stops and if the room 19.2 Symptoms that are NOT system temperature and humidity are low. This is because warm malfunctions refrigerant gas flows back into the indoor unit and generates steam. The following symptoms are NOT system malfunctions: 19.2.7 Symptom: White mist comes out of a unit... -
Page 69: Symptom: The Display Shows "88
Technical data the accompanying documentation. Field supply 22.1 Information requirements for Eco Equipment NOT made by Daikin that can be combined with product according instructions Design accompanying documentation. Follow the steps below to consult the Energy Label – Lot 21 data of the unit and outdoor/indoor combinations. - Page 72 4P546228-1 2018.09...
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