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12 Technical data

Installer and user reference guide

RXYTQ8~16U7YF
VRV IV+ heat pump for high ambient temperatures
4P561157-1 – 2018.09

Piping diagram: 16

INV

M1C

M2C

M1F

M2F

(S1NPH)

(S1NPL)

(S1PH)

(S2PH)

HPS

R6T

R5T

R1T

R9T

R8T

R21T

R22T

R3T

HPS

R4T

Compressor (M1C)

Compressor (M2C)

Heat exchanger

Fan

Fan motor (M1F, M2F)

Accumulator

Expansion valve, main (Y1E)

Expansion valve, subcool heat exchanger (Y2E)

Expansion valve, storage vessel (Y4E)

Subcool heat exchanger

Oil separator

Solenoid valve, oil accumulator (Y2S)

Solenoid valve, oil1 (Y3S)

Solenoid valve, oil2 (Y4S)

4‑way valve, main (Y1S)

4‑way valve, sub (Y5S)

Electrical component box

Service port, refrigerant charge

Stop valve, liquid

Stop valve, gas

Expansion valve, liquid cooling (Y3E)

Service port

Содержание VRV IV+ RXYTQ8U7YF

Страница 1: ...ser reference guide VRV IV heat pump for high ambient temperatures English Installer and user reference guide VRV IV heat pump for high ambient temperatures RXYTQ8U7YF RXYTQ10U7YF RXYTQ12U7YF RXYTQ14U...

Страница 2: ...ltiple outdoor units Knockout holes 20 6 4 7 To connect the refrigerant branching kit 20 6 4 8 To protect against contamination 20 6 4 9 To braze the pipe end 21 6 4 10 Using the stop valve and servic...

Страница 3: ...9 19 2 2 Symptom Cool Heat cannot be changed over 59 19 2 3 Symptom Fan operation is possible but cooling and heating do not work 59 19 2 4 Symptom The fan speed does not correspond to the setting 59...

Страница 4: ...emical symbols are Pb lead 0 004 Waste batteries must be treated at a specialized treatment facility for reuse By ensuring waste batteries are disposed of correctly you will help to prevent potential...

Страница 5: ...e consequence Self combustion and explosion of the compressor because of air going into the operating compressor Use a separate recovery system so that the unit s compressor does NOT have to operate W...

Страница 6: ...ll an earth leakage protector Failure to do so may cause electric shock or fire When installing the earth leakage protector make sure it is compatible with the inverter resistant to high frequency ele...

Страница 7: ...fter the box with the outdoor unit is delivered on site It contains information about Unpacking and handling the outdoor unit Removing the accessories from the unit Removing the transportation stay Ke...

Страница 8: ...TH OF LIQUID PIPE SIZE O9 5 x 0 059 TOTAL LENGTH OF LIQUID PIPE SIZE O6 4 x 0 022 105 CR 130 50 CR 105 50 CR 70 70 CR 85 85 CR 105 105 CR 130 8HP Total indoor unit capacity connection ratio CR 10 12HP...

Страница 9: ...ON Not all combinations of indoor units are allowed for guidance see 4 5 2 Possible combinations of indoor units on page 9 e d c c b f a a VRV IV Heat pump outdoor unit b Refrigerant piping c VRV dire...

Страница 10: ...nfigurator cable EKPCCAB You can make several commissioning field settings through a personal computer interface For this option EKPCCAB is required which is a dedicated cable to communicate with the...

Страница 11: ...oundings When installing the unit in a small room take measures in order to keep the refrigerant concentration from exceeding allowable safety limits in the event of a refrigerant leak refer to About...

Страница 12: ...d space Compliance to the local applicable regulations and standards for the maximum allowable concentration level is required According to the appropriate European Standard the maximum allowed concen...

Страница 13: ...he piping length on page 14 5 3 2 To select the piping size Determine the proper size using the following tables and reference figure only for indication A B B B C D E x y b a 1 2 3 4 b 1 2 3 4 VRV DX...

Страница 14: ...refnet joints other than the first branch example refnet joint b select the proper branch kit model based on the total capacity index of all indoor units connected after the refrigerant branch Indoor...

Страница 15: ...000 m 500 m Example 1 1 a b c d e f g h i j k l m n p 1000 m Example 2 1 a b c d e f g h i j k l m n p 500 m Between outdoor branch and outdoor unit only in case 16 HP Actual piping length 10 m Exampl...

Страница 16: ...g c When the piping size is increased step b the piping length has to be counted as double except for the main pipe and the pipes that are not increased in pipe size The total piping length has to be...

Страница 17: ...safety devices required by the applicable legislation WARNING ALWAYS use multicore cable for power supply cables 5 4 2 Safety device requirements The power supply must be protected with the required...

Страница 18: ...HP 6 SW8 NOTICE When closing the electrical component box cover make sure that the sealing material on the lower back side of the cover is NOT caught and bend towards the inside a b c d e a Electrica...

Страница 19: ...gerant Do NOT release them directly into the environment Use a vacuum pump to evacuate the installation Only use phosphoric acid deoxidised seamless copper NOTICE After all the piping has been connect...

Страница 20: ...t the total length of the piping connected to the joint is absolute straight for more than 500 mm Only if a straight field piping of more than 120 mm is connected more than 500 mm of straight section...

Страница 21: ...e pipe corrosion or in particular if the flux contains fluorine it will deteriorate the refrigerant oil 6 4 10 Using the stop valve and service port To handle the stop valve Make sure to keep all stop...

Страница 22: ...he connection of the field piping in case the recovery was not complete 6 5 Checking the refrigerant piping 6 5 1 About checking the refrigerant piping Refrigerant piping works are finished The indoor...

Страница 23: ...y is set to the unit If not see also the flow chart earlier described in this chapter see 6 5 1 About checking the refrigerant piping on page 22 6 5 4 To perform a leak test The leak test must satisfy...

Страница 24: ...rigerant always use protective gloves and safety glasses NOTICE If the power of some units is turned off the charging procedure cannot be finished properly NOTICE In case of a multiple outdoor system...

Страница 25: ...0 kg 1 kg 105 CR 130 0 5 kg 1 5 kg 30 m 50 CR 70 0 kg 1 kg 70 CR 85 0 3 kg 0 5 kg 1 5 kg 85 CR 105 0 7 kg 1 kg 2 kg 105 CR 130 1 2 kg 1 5 kg a In case of a multi outdoor unit system add the sum of the...

Страница 26: ...re 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 Execut...

Страница 27: ...ithout 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...

Страница 28: ...ns of the manual refrigerant charge operation mode 1 Take all the precautions mentioned in 7 Configuration on page 32 and 8 Commissioning on page 40 into account 2 Turn on the power of the indoor unit...

Страница 29: ...nstalling the earth leakage protector make sure it is compatible with the inverter resistant to high frequency electric noise to avoid unnecessary opening of the earth leakage protector Install power...

Страница 30: ...ssion Maximum wiring length 1000 m Total wiring length 2000 m Maximum inter unit wiring length between outdoor units 30 m Transmission wiring to cool heat selector 500 m Maximum number of branches 16...

Страница 31: ...ansmission 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 serie...

Страница 32: ...8 power terminal block 5 5 7 3 M8 ground NOTICE When connecting the earth wire align the wire with the cut out section of the cup washer Incomplete earthing may cause electrical shock The power supply...

Страница 33: ...uttons 7 2 3 To access the field setting components It is not required to open the complete electronic component box to access the push buttons on the PCB and read out the 7 segment display s To acces...

Страница 34: ...ttings of the outdoor unit and system What How Changing and accessing the setting in mode 2 Once mode 2 is selected push BS1 for more than 5 seconds you can select the wanted setting It is done by pus...

Страница 35: ...ecognised by the system In case there is a mismatch it is recommended to check the communication wiring path between outdoor and indoor units F1 F2 communication line 1 13 Shows the total number of co...

Страница 36: ...or vacuuming process can be done properly 2 21 Description 0 default Deactivated 1 Activated To stop the refrigerant recovery vacuuming mode push BS3 If BS3 is not pushed the system will remain in ref...

Страница 37: ...able conditions The intentional target however is fixed and will be used to obtain the best balance between energy consumption and comfort depending on the application type 7 3 1 Available main operat...

Страница 38: ...llowed to go down to 6 C on temporary base depending on the situation In case of heating operation the condense temperature is allowed to go up to 46 C on temporary base depending on the situation Whe...

Страница 39: ...Te Evaporating temperature Quick Powerful Mild Room temperature evolution A B C D E F A Indoor unit set temperature B Operation start C Operating time D Mild E Quick F Powerful 7 3 4 Example Automati...

Страница 40: ...starting up the unit Field wiring Be sure that the field wiring has been carried out according to the instructions described in the chapter 6 8 Connecting the electrical wiring on page 29 according to...

Страница 41: ...g start up control Cooling stable condition Communication check Stop valve check Pipe length check Refrigerant amount check Pump down operation Unit stop Note During the test operation it is not possi...

Страница 42: ...Making field settings on page 33 for details how to set mode 2 When vacuuming recovery mode is used check very carefully what should be vacuumed recovered before starting See installation manual of t...

Страница 43: ...top valve closed Refrigerant shortage Indoor unit malfunction Open stop valves Check refrigerant amount recharge unit Check the user interface s display or transmission wiring between the outdoor unit...

Страница 44: ...PCB or actuator De icing temperature sensor malfunction R7T A1P X30A Check connection on PCB or actuator Liquid temperature sensor after subcool HE malfunction R5T A1P X30A Check connection on PCB or...

Страница 45: ...Wrong type of indoor units combined R410A R407C RA Hydrobox etc Indoor unit malfunction Check if other indoor units have malfunction and confirm indoor unit mix is allowed Connection malfunction over...

Страница 46: ...eration Retry when ambient conditions are satisfied Outdoor unit is out of temperature range for leak detection operation Retry when ambient conditions are satisfied Too low pressure was noticed durin...

Страница 47: ...Layout A B C D A B Possibility 1 Possibility 2 3 a 10 mm b 300 mm c 10 mm d 500 mm e 20 mm f 600 mm a 50 mm b 100 mm c 50 mm d 500 mm e 100 mm f 500 mm 4 a 10 mm b 300 mm c 10 mm d 500 mm e 20 mm a 50...

Страница 48: ...n 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 liquid cooling Y3E v Service port Piping diagram RXYTQ10...

Страница 49: ...essor M1C b Compressor M2C c Heat exchanger d Fan e Fan motor M1F M2F f Accumulator g Expansion valve main Y1E h Expansion valve subcool heat exchanger Y2E i Expansion valve storage vessel Y4E j Subco...

Страница 50: ...d circuit board noise filter A3P Printed circuit board inverter A4P Printed circuit board fan A5P Printed circuit board ABC I P option BS1 BS3 A1P Push button switch MODE SET RETURN C A3P Capacitor DS...

Страница 51: ...R L2R Reactor M1C M2C Motor compressor M1F M2F Motor fan PS A1P A3P A6P Switching power supply Q1DI Earth leakage circuit breaker field supply Q1LD A1P Earth current detector field supply R24 A4P A7P...

Страница 52: ...to perform this work CAUTION It is not good for your health to expose your body to the air flow for a long time CAUTION To avoid oxygen deficiency ventilate the room sufficiently if equipment with bur...

Страница 53: ...eating operation the indoor fan is automatically stopped The display of the user interface shows It may take some time before the fan starts This is not a malfunction INFORMATION The heating capacity...

Страница 54: ...tem stops operating NOTICE Do not turn off power immediately after the unit stops but wait for at least 5 minutes 16 4 Adjusting the air flow direction Refer to the operation manual of the user interf...

Страница 55: ...filter ask a qualified service person to clean the filters Refer to Maintenance in the indoor unit manual Keep the indoor unit and user interface at least 1 m away from televisions radios stereos and...

Страница 56: ...tains fluorinated greenhouse gases Do NOT vent gases into the atmosphere Refrigerant type R410A Global warming potential GWP value 2087 5 NOTICE In Europe the greenhouse gas emissions of the total ref...

Страница 57: ...ears Pressure containing parts In case of corrosion contact your local dealer NOTICE The table indicates main components Refer to your maintenance and inspection contract for more details The table in...

Страница 58: ...tion air thermistor malfunction indoor Discharge air thermistor malfunction indoor Movement detector or floor temperature sensor malfunction indoor User interface thermistor malfunction indoor PCB mal...

Страница 59: ...oor unit is extremely contaminated the temperature distribution inside a room becomes uneven It is necessary to clean the interior of the indoor unit Ask your dealer for details on cleaning the unit T...

Страница 60: ...Units MUST be treated at a specialised treatment facility for reuse recycling and recovery 22 Glossary Dealer Sales distributor for the product Authorized installer Technical skilled person who is qu...

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