Daikin RXYTQ8T7YF User Manual Download

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Installation and operation manual

VRV IV system air conditioner

English

Installation and operation

manual

VRV IV system air conditioner

RXYTQ8T7YF
RXYTQ10T7YF
RXYTQ12T7YF
RXYTQ14T7YF
RXYTQ16T7YF

Summary of Contents for RXYTQ8T7YF

Page 1: ...Installation and operation manual VRV IV system air conditioner English Installation and operation manual VRV IV system air conditioner RXYTQ8T7YF RXYTQ10T7YF RXYTQ12T7YF RXYTQ14T7YF RXYTQ16T7YF...

Page 2: ...iring Overview 16 5 7 2 Guidelines when knocking out knockout holes 16 5 7 3 To route and fix the transmission wiring 16 5 7 4 To connect the transmission wiring 17 5 7 5 To finish the transmission wi...

Page 3: ...AL SETTING 40 30 10 20 19 9 29 39 38 28 8 18 17 7 27 37 36 26 6 16 15 5 25 35 34 23 24 4 3 2 1 INSTALLATION MODELNAME No 12 13 14 50 49 48 47 46 45 60 59 58 57 56 64 63 62 61 11 22 21 33 32 31 44 43 4...

Page 4: ...nd in cooling mode at ambient temperatures from 5 C DB to 52 C DB 3 2 System layout NOTICE Design of the system must not be done at temperatures below 15 C e d c c b f a a VRV IV Heat pump outdoor uni...

Page 5: ...200 19 1 200 x 290 22 2 Indoor unit capacity index Piping outer diameter size mm Gas pipe Liquid pipe 290 x 420 28 6 12 7 420 x 640 15 9 640 x 920 34 9 19 1 920 41 3 Example Downstream capacity for E...

Page 6: ...HRQ22M64T 640 KHRQ22M75T Concerning refnet headers choose from the following table in accordance with the total capacity of all the indoor units connected below the refnet header Indoor unit capacity...

Page 7: ...adding the minimum circuit amps of each used unit according to the table above multiply the result by 1 1 and select the next higher recommended fuse capacity Example Combining the RXYTQ30 by using t...

Page 8: ...stallation is on a solid longitudinal foundation steel beam frame or concrete The foundation must be larger than the grey marked area 729 613 929 AB AA a mm Minimum foundation a Anchor point 4 HP AA A...

Page 9: ...abel a attached to the joint comes to the top Do not tilt the joint more than 7 5 see view A Do not install the joint vertically see view B a a A B 7 5 7 5 a Caution label X Not allowed O Allowed Make...

Page 10: ...o close Shaft Valve body Hexagonal wrench Cap valve lid Service port 9 5 5 4 6 6 4 mm 13 5 16 5 11 5 13 9 12 7 8 1 9 9 18 0 22 0 15 9 13 5 16 5 6 mm 23 0 27 0 19 1 27 0 33 0 8 mm 22 5 27 5 25 4 5 3 7...

Page 11: ...ait until the outdoor unit has finished the initialisation to apply setting 2 21 Leak test and vacuum drying Checking the refrigerant piping involves Checking for any leakages in the refrigerant pipin...

Page 12: ...Should you fail to reach the target vacuum within 2 hours or maintain the vacuum for 1 hour the system may contain too much moisture In that case break the vacuum by pressurising with nitrogen gas to...

Page 13: ...e see 5 6 5 To charge refrigerant on page 15 It can be skipped but charging will take longer then A flow chart is available which gives an overview of the possibilities and actions to be taken see 5 6...

Page 14: ...refrigerant charge label Go to test run Step 3b Close valves C and B R Q R Q R Q Continued on next page p p R410A N2 C A B Charging refrigerant Step 5 Proceed with manual charge Step 6 Activate field...

Page 15: ...harge port and charge the remaining additional refrigerant through this port Open all outdoor unit stop valves At this point valve A must remain closed p p R410A a c d b A a Weighing scales b Refriger...

Page 16: ...n knocking out knockout holes To punch a knockout hole hit on it with a hammer After knocking out the holes we recommend removing any burrs and paint the edges and areas around the holes using repair...

Page 17: ...tion The wiring for the other systems must be connected to the F1 F2 Out Out terminals of the PCB in the outdoor unit to which the interconnecting wiring for the indoor units is connected The base uni...

Page 18: ...e push buttons it is possible to Perform special actions testrun etc Perform field settings demand operation low noise etc DIP switches By operating the DIP switches it is possible to DS1 1 COOL HEAT...

Page 19: ...ndoor units When the communication between indoor units and outdoor unit s is established and normal the 7 segment display indication state will be as below default situation when shipped from factory...

Page 20: ...or units 1 13 Shows the total number of connected outdoor units in case of multiple outdoor system 1 17 1 18 1 19 Shows 1 17 The latest malfunction code 1 18 The 2nd last malfunction code 1 19 The 3rd...

Page 21: ...n the installer and user reference guide Installation Check that the unit is properly installed to avoid abnormal noises and vibrations when starting up the unit Field wiring Be sure that the field wi...

Page 22: ...r 2 on page 19 Push BS2 for 5 seconds or more The unit will start test operation Result The test operation is automatically carried out the outdoor unit display will indicate and the indication Test o...

Page 23: ...n on PCB or actuator Discharge temperature too high R21T R22T Stop valve closed Refrigerant shortage Open stop valves Check refrigerant amount recharge unit Compressor casing temperature too high R8T...

Page 24: ...tion Transmission outdoor unit inverter INV2 transmission trouble A1P X20A X28A X40A Check connection INV1 unbalanced power supply voltage Check if power supply is within range INV2 unbalanced power s...

Page 25: ...ered unit amount by monitor mode or wait till initialisation is finished Stop valve closed or wrong during system test run Open stop valves 9 Technical data Latest information can be found in the tech...

Page 26: ...based on cooling operation at 46 C ambient temperature standard conditions INFORMATION Further specifications can be found in the technical engineering data 9 2 Piping diagram Outdoor unit Piping dia...

Page 27: ...L S1PH S2PH HPS R6T R5T R7T R1T R4T R21T R22T R3T HPS n a Compressor 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...

Page 28: ...e found in the technical engineering data 12 2 Operating the system 12 2 1 About operating the system Operation procedure varies according to the combination of outdoor unit and user interface To prot...

Page 29: ...m temperature is low 20 C 12 3 2 To use the dry program WITHOUT cool heat changeover remote control switch To start 1 Press the operation mode selector button on the user interface several times and s...

Page 30: ...interface Only the master user interface can select heating or cooling mode 13 Maintenance and service NOTICE Never inspect or service the unit by yourself Ask a qualified service person to perform th...

Page 31: ...tify your installer and report the malfunction code If the system does not properly operate except for the above mentioned cases and none of the above mentioned malfunctions is evident investigate the...

Page 32: ...r units combined Indoor unit malfunction Connection malfunction over indoor units or type mismatch Centralised address duplication Malfunction in communication centralised control device indoor unit A...

Page 33: ...topped When another indoor unit is in operation this noise is heard In order to prevent oil and refrigerant from remaining in the system a small amount of refrigerant is kept flowing 14 2 10 Symptom N...

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