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Installation and operation manual

VRV IV+ heat pump for high ambient temperatures

English

Installation and operation manual

VRV IV+ heat pump for high ambient temperatures

RXYTQ8U7YF
RXYTQ10U7YF
RXYTQ12U7YF
RXYTQ14U7YF
RXYTQ16U7YF

Содержание VRV IV+ Series

Страница 1: ...nd operation manual VRV IV heat pump for high ambient temperatures English Installation and operation manual VRV IV heat pump for high ambient temperatures RXYTQ8U7YF RXYTQ10U7YF RXYTQ12U7YF RXYTQ14U7...

Страница 2: ...unit fan does not spin 12 8 2 15 Symptom The display shows 88 12 8 2 16 Symptom The compressor in the outdoor unit does not stop after a short heating operation 12 8 2 17 Symptom The inside of an out...

Страница 3: ...t installation and operation manual Installation and operation instructions Format Paper in the box of the outdoor unit Installer and user reference guide Preparation of the installation reference dat...

Страница 4: ...gh pressure side Do NOT use taped wires stranded conductor wires extension cords or connections from a star system They can cause overheating electrical shock or fire Do NOT install a phase advancing...

Страница 5: ...overy By ensuring this product is disposed of correctly you will help to prevent potential negative consequences for the environment and human health For more information contact your installer or loc...

Страница 6: ...t Always have qualified service personnel confirm that the point of leakage has been repaired or corrected before resuming operation WARNING Stop operation and shut off the power if anything unusual o...

Страница 7: ...ng for about 1 minute after the heating operation stops The air flow rate may adjust itself depending on the room temperature or the fan may stop immediately This is not a malfunction 6 2 3 About the...

Страница 8: ...gain Result The operation lamp goes out and the system stops operating NOTICE Do not turn off power immediately after the unit stops but wait for at least 5 minutes 6 3 3 To use the dry program WITH c...

Страница 9: ...he refrigerant charge of the unit is indicated both in weight and CO2 equivalent Formula to calculate the quantity in CO2 equivalent tonnes GWP value of the refrigerant total refrigerant charge in kg...

Страница 10: ...wind from coming in Check if there are too many occupants in the room during cooling operation Check if the heat source of the room is excessive Check if direct sunlight enters the room Use curtains...

Страница 11: ...shows that this is a slave user interface When the cool heat changeover remote control switch is installed and the display shows change over under centralized control this is because cool heat change...

Страница 12: ...cable legislation Units MUST be treated at a specialised treatment facility for reuse recycling and recovery For the installer 11 About the box 11 1 About is part of Daikin s wider commitment to reduc...

Страница 13: ...f 2 or 3 RXYTQ modules These units are intended for outdoor installation and aimed for heat pump air to air applications These units have in single use heating capacities ranging from 25 to 50 kW and...

Страница 14: ...cal component box of the outdoor unit 414 For service purposes the pushbuttons on the main PCB need to be accessed To access these pushbuttons the electrical component box cover does not need to be op...

Страница 15: ...tion 14 1 Preparing refrigerant piping 14 1 1 Refrigerant piping requirements NOTICE Refrigerant R410A requires strict cautions for keeping the system clean and dry Foreign materials including mineral...

Страница 16: ...7 10 22 2 25 4 a Size up HP class Piping outer diameter size mm Gas pipe Liquid pipe 12 14 28 6 b 12 7 15 9 16 28 6 31 8 a 18 22 15 9 19 1 24 34 9 b 26 34 34 9 38 1 a 19 1 22 2 36 48 41 3 b a If the s...

Страница 17: ...on to the outmost outdoor unit always connect the stop valve and the piping between outdoor units as shown in the 4 correct possibilities of the figure below a b b b a b b b a b a b a b a a a 200 mm a...

Страница 18: ...t the multi connection piping kit NOTICE Improper installation may lead to malfunction of the outdoor unit Install the joints horizontally so that the caution label a attached to the joint comes to th...

Страница 19: ...handle the service port Always use a charge hose equipped with a valve depressor pin since the service port is a Schrader type valve After handling the service port make sure to tighten the service p...

Страница 20: ...m the leak test and the vacuum drying DANGER RISK OF ELECTROCUTION NOTICE Make sure that all indoor units connected to the outdoor unit are powered on NOTICE Wait to apply setting 2 21 until the outdo...

Страница 21: ...the copper flare 14 3 5 To perform vacuum drying To remove all moisture from the system proceed as follows 1 Evacuate the system for at least 2 hours to a target vacuum of 100 7 kPa 1 007 bar 5 Torr a...

Страница 22: ...case of larger systems recommended to first pre charge a portion of refrigerant through the liquid line before proceeding with the manual charging This step is included in below procedure see To char...

Страница 23: ...charging refrigerant Step 1 Calculate additional refrigerant charge amount R kg Refrigerant overcharge happened recover refrigerant to reach R Q Step 2 Open valves C and B to the liquid line Execute...

Страница 24: ...hout outdoor unit operation If Then The additional refrigerant amount is smaller than 10 kg Perform steps 2 3 The additional refrigerant charge is larger than 10 kg Perform steps 2 8 3 Pre charging ca...

Страница 25: ...edure described in 17 Commissioning 431 14 4 6 Step 6 To manually charge refrigerant INFORMATION The manual refrigerant charge operation will automatically stop within 30 minutes If charging is not co...

Страница 26: ...d RXYTQ12 Minimum circuit ampacity of the RXYTQ8 16 1 A Minimum circuit ampacity of the RXYTQ10 22 0 A Minimum circuit ampacity of the RXYTQ12 24 0 A Accordingly the minimum circuit ampacity of the RX...

Страница 27: ...oor transmission F1 F2 f Outdoor unit other system transmission F1 F2 INFORMATION U series units cannot share the same refrigerant circuit with T series units However electrically U series units and T...

Страница 28: ...alled by default should be removed Attach both cables to the power supply terminal as indicated below L1 L2 L2 N 15 8 To check the insulation resistance of the compressor NOTICE If after installation...

Страница 29: ...plate b Main PCB with 3 7 segment displays and 3 push buttons c Electrical component box service cover Operate the switches and push buttons with an insulated stick such as a closed ball point pen to...

Страница 30: ...e required value is selected you can define the change of value by pushing BS3 1 time Press BS3 again to start operation according to the chosen value 16 1 7 Mode 1 Monitoring settings 1 0 Shows wheth...

Страница 31: ...ures described below 17 1 Precautions when commissioning CAUTION Do NOT perform the test operation while working on the indoor units When performing the test operation NOT only the outdoor unit but th...

Страница 32: ...rect wiring communication check with indoor units Check of the stop valves opening Judgement of piping length Abnormalities on indoor units cannot be checked for each unit separately After the test op...

Страница 33: ...alfunction code which is displayed on the outdoor unit will indicate a main malfunction code and a sub code The sub code indicates more detailed information about the malfunction code The malfunction...

Страница 34: ...g temperature sensor malfunction R8T open circuit A1P X19A Check connection on PCB or actuator Compressor casing temperature sensor malfunction R8T short circuit A1P X19A Check connection on PCB or ac...

Страница 35: ...see manual unit not ready for leak detection functionality Malfunction code System test run not yet executed system operation not possible Execute system test run Faulty wiring to Q1 Q2 or indoor out...

Страница 36: ...ode Leak detection function related Unit is not prepared to execute leak detection operation Refer to requirements to be able to execute leak detection operation Indoor unit is out of temperature rang...

Страница 37: ...mm f 600 mm h1 h2 1500 500 F mm d b ABCD Sides along the installation site with obstacles F Front side Suction side In case of an installation site where sides A B C D have obstacles the wall heights...

Страница 38: ...oil1 Y3S n Solenoid valve oil2 Y4S o 4 way valve main Y1S p 4 way valve sub Y5S q Electrical component box r Service port refrigerant charge s Stop valve liquid t Stop valve gas u Expansion valve liqu...

Страница 39: ...current sensor R1T Thermistor air R3T Thermistor accumulator R4T Thermistor heat exchanger liquid pipe R5T Thermistor subcool liquid pipe R6T Thermistor heat exchanger gas pipe R7T Thermistor heat ex...

Страница 40: ...anger de icer R8T R9T Thermistor M1C M2C body R21T R22T Thermistor M1C M2C discharge S1NPH Pressure sensor high S1NPL Pressure sensor low S1PH S2PH Pressure switch discharge SEG1 SEG 3 A1P 7 segment d...

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