Daikin Sky Air Alpha Series Installer'S Reference Manual Download Page 39

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Installation

Installer reference guide

RZAG71~Y1
Sky Air Alpha-series
4P695307-1 – 2022.05

7.4 Connecting the refrigerant piping

7.4.1 About connecting the refrigerant piping

Before connecting the refrigerant piping

Make sure the outdoor and indoor unit are mounted.

Typical workflow

Connecting the refrigerant piping involves:

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Connecting the refrigerant piping to the outdoor unit

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Connecting the refrigerant piping to the indoor unit

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Insulating the refrigerant piping

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Keeping in mind the guidelines for:

Pipe bending

Flaring pipe ends

Brazing

Using the stop valves

7.4.2 Precautions when connecting the refrigerant piping

INFORMATION

Also read the precautions and requirements in the following chapters:

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General safety precautions

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Preparation

DANGER: RISK OF BURNING/SCALDING

NOTICE

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Do NOT use mineral oil on flared part.

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NEVER install a drier to this unit to guarantee its lifetime. The drying material may
dissolve and damage the system.

Summary of Contents for Sky Air Alpha Series

Page 1: ...Installer reference guide Sky Air Alpha series RZAG71N2V1B RZAG100N2V1B RZAG125N2V1B RZAG140N2V1B RZAG71N2Y1B RZAG100N2Y1B RZAG125N2Y1B RZAG140N2Y1B...

Page 2: ...Additional installation site requirements of the outdoor unit in cold climates 29 6 3 Preparing refrigerant piping 29 6 3 1 Refrigerant piping requirements 29 6 3 2 Refrigerant piping insulation 32 6...

Page 3: ...60 7 8 Finishing the outdoor unit installation 63 7 8 1 To finish the outdoor unit installation 63 7 8 2 To close the outdoor unit 64 7 8 3 To check the insulation resistance of the compressor 64 8 C...

Page 4: ...of the installation reference data Format Digital files on https www daikin eu Use the search function to find your model Latest revisions of the supplied documentation may be available on the regiona...

Page 5: ...eration manual and the wiring instruction sheet Before performing maintenance and service tasks read the service manual For more information see the installer and user reference guide The unit contain...

Page 6: ...o and know before going on site Installation What to do and know to install the system Commissioning What to do and know to commission the system after it is installed Hand over to the user What to gi...

Page 7: ...tructions described in the Daikin documentation WARNING Tear apart and throw away plastic packaging bags so that nobody especially children can play with them Possible risk suffocation WARNING Provide...

Page 8: ...romagnetic waves may disturb the control system and cause malfunction of the equipment In places where there is a risk of fire due to the leakage of flammable gases example thinner or gasoline carbon...

Page 9: ...If appliances contain R32 refrigerant the floor area of the room in which the appliances are installed operated and stored MUST be larger than the minimum floor area defined in table below A m2 This a...

Page 10: ...7 8 38 5 4 2 150 7 8 518 4 4 12 3 4 4 165 m kg Amin m2 4 6 20 0 4 8 21 8 5 0 23 6 1 842 5 2 25 6 1 843 4 45 5 4 27 6 2 0 4 83 5 6 29 7 2 2 5 31 5 8 31 8 2 4 5 79 6 0 34 0 2 6 6 39 6 2 36 4 2 8 7 41 6...

Page 11: ...sion of the compressor because of oxygen going into the operating compressor NOTICE To avoid compressor breakdown do NOT charge more than the specified amount of refrigerant When the refrigerant syste...

Page 12: ...gerant amount 2 1 4 Brine If applicable See the installation manual or installer reference guide of your application for more information WARNING The selection of the brine MUST be in accordance with...

Page 13: ...th the piping and sharp edges Make sure no external pressure is applied to the terminal connections Make sure to install earth wiring Do NOT earth the unit to a utility pipe surge absorber or telephon...

Page 14: ...ed phase after a momentary black out and the power goes ON and OFF while the product is operating attach a reversed phase protection circuit locally Running the product in reversed phase can break the...

Page 15: ...ons Local regulations for UK It is law that all gas appliances are installed by a gas safe registered competent engineer and in accordance with the following recommendations Current Gas Safety Install...

Page 16: ...input not exceeding 70 kW net BS 6891 2015 Specification for the installation and maintenance of low pressure gas installation pipework of up to 35 mm R1 on premises BS 7593 2006 Code of practice for...

Page 17: ...rant concentrations in a closed room can lead to oxygen deficiency WARNING If appliances contain R32 refrigerant the floor area of the room in which the appliances are installed operated and stored MU...

Page 18: ...NOTICE Do NOT use mineral oil on flared part Do NOT reuse piping from previous installations NEVER install a drier to this unit to guarantee its lifetime The drying material may dissolve and damage t...

Page 19: ...ee 7 6 Charging refrigerant 449 WARNING The refrigerant inside the unit is mildly flammable but normally does NOT leak If the refrigerant leaks in the room and comes in contact with fire from a burner...

Page 20: ...lectrical shock Install the required fuses or circuit breakers Secure the electrical wiring with cable ties so that the cables do NOT come in contact with sharp edges or piping particularly on the hig...

Page 21: ...tion NOT ONLY the outdoor unit but the connected indoor unit will operate as well Working on an indoor unit while performing a test operation is dangerous CAUTION Do NOT insert fingers rods or other o...

Page 22: ...rier Bring the packed unit as close as possible to its final installation position to prevent damage during transport Prepare in advance the path along which you want to bring the unit to its final in...

Page 23: ...P695307 1 2022 05 4 1 3 To remove the accessories from the outdoor unit 1 1 2 3 ENERG IJA Y IA IE ENERG IJA Y IA IE 1 2 b 1 a c 1 1 d e f 1 a General safety precautions b Outdoor unit installation man...

Page 24: ...it with options 5 2 Identification 5 2 1 Identification label Outdoor unit Location Model identification Example R Z A G 140 N2 V1 B Code Explanation R Air cooled split outdoor unit Z Inverter A Refri...

Page 25: ...ues For installation instructions see the installation manual of the refrigerant branch kit Bottom plate heater EKBPH140N7 Prevents freeze up of the bottom plate Recommended in areas with low ambient...

Page 26: ...Installation site requirements of the outdoor unit INFORMATION Also read the following requirements General installation site requirements See the General safety precautions chapter Service space requ...

Page 27: ...ly explosive atmospheres In places where there is machinery that emits electromagnetic waves Electromagnetic waves may disturb the control system and cause malfunction of the equipment In places where...

Page 28: ...quirements when installing the windbreaker a b c d c d a Sea wind b Building c Outdoor unit d Windbreaker Strong winds 18 km h blowing against the outdoor unit s air outlet causes short circuit suctio...

Page 29: ...o prevent this after mounting of the unit see 7 3 5 To provide drainage 436 NOTICE When operating the unit in a low outdoor ambient temperature with high humidity conditions make sure to take precauti...

Page 30: ...L3 L4 L5 L6 L7 a Assume that the longest line in the illustration corresponds with the actual longest pipe and the highest unit in the illustration corresponds with the actual highest unit L1 Main pip...

Page 31: ...diameters as the connections on the outdoor units i e standard diameters for liquid and gas piping b When reusing existing piping you may use the size up or size down diameters but then capacity migh...

Page 32: ...L5 Limit L6 L7 Limit L2 L4 L3 L7 Limit 10 m 6 Maximum height between indoor and outdoor Pair twin triple and double twin H1 Limit 30 m 7 Maximum height between indoors Pair N A Twin triple and double...

Page 33: ...cal shock Install the required fuses or circuit breakers Secure the electrical wiring with cable ties so that the cables do NOT come in contact with sharp edges or piping particularly on the high pres...

Page 34: ...utdoor installation Finishing the indoor installation INFORMATION For installation of the indoor unit mounting the indoor unit connecting the refrigerant piping to the indoor unit connecting the elect...

Page 35: ...ing drainage 4 Preventing the unit from falling over 7 3 2 Precautions when mounting the outdoor unit INFORMATION Also read the precautions and requirements in the following chapters General safety pr...

Page 36: ...late of the unit INFORMATION The recommended height of the upper protruding part of the bolts is 20 mm 20 NOTICE Fix the outdoor unit to the foundation bolts using nuts with resin washers a If the coa...

Page 37: ...ter from getting into the unit and to avoid drain water dripping see the following figure INFORMATION If necessary you can use a drain pan field supply to prevent drain water from dripping NOTICE If t...

Page 38: ...After making the knockout holes we recommend to remove the burrs and paint the edges and areas around the edges using repair paint to prevent rusting When passing electrical wiring through the knockou...

Page 39: ...o the outdoor unit Connecting the refrigerant piping to the indoor unit Insulating the refrigerant piping Keeping in mind the guidelines for Pipe bending Flaring pipe ends Brazing Using the stop valve...

Page 40: ...uid or dust from entering the piping Use caution when passing copper tubes through walls see figure below Unit Installation period Protection method Outdoor unit 1 month Pinch the pipe 1 month Pinch o...

Page 41: ...Use flare nuts that are included with the unit Using different flare nuts may cause refrigerant gas leakage 1 Cut the pipe end with a pipe cutter 2 Remove burrs with the cut surface facing down so tha...

Page 42: ...g copper to copper refrigerant piping Use phosphor copper brazing filler alloy BCuP which does NOT require flux Flux has an extremely harmful influence on refrigerant piping systems For instance if ch...

Page 43: ...stem and turn the valve stem Counterclockwise to open Clockwise to close 3 When the stop valve CANNOT be turned any further stop turning 4 Install the stop valve cover Result The valve is now open clo...

Page 44: ...he field piping against physical damage 1 Do the following Remove the service cover a with screw b Remove the piping intake plate c with screws d a c b d d 2 Choose a piping route a b c or d a d b c a...

Page 45: ...b to the gas stop valve a b 4 Do the following Insulate the liquid piping a and the gas piping b Wind heat insulation around the curves and then cover it with vinyl tape c Make sure the field piping...

Page 46: ...igerant piping 7 5 1 About checking the refrigerant piping The outdoor unit s internal refrigerant piping has been factory tested for leaks You only have to check the outdoor unit s external refrigera...

Page 47: ...pump is not working NOTICE Use this vacuum pump for R32 exclusively Using the same pump for other refrigerants may damage the pump and the unit NOTICE Connect the vacuum pump to both the service port...

Page 48: ...k for leaks by applying the bubble test solution to all connections 3 Discharge all nitrogen gas 7 5 5 To perform vacuum drying NOTICE Connect the vacuum pump to both the service port of the gas stop...

Page 49: ...see later Completely recharging refrigerant Example When relocating the system After a leak Charging additional refrigerant Before charging additional refrigerant make sure the outdoor unit s external...

Page 50: ...RNING Some sections of the refrigerant circuit may be isolated from other sections caused by components with specific functions e g valves The refrigerant circuit therefore features additional service...

Page 51: ...n of a harmful gas Turn OFF any combustible heating devices ventilate the room and contact the dealer where you purchased the unit Do NOT use the unit until a service person confirms that the part fro...

Page 52: ...7 6 5 Charging additional refrigerant To determine the additional refrigerant amount To determine if adding additional refrigerant is necessary If Then L1 L2 L3 L4 L5 L6 L7 chargeless length Chargele...

Page 53: ...2 Determine R1 and R2 If Then G1 40 m a Use the table below to determine R1 length G1 40 m a and R2 length G2 G1 40 m a and G1 G2 40 m a R1 0 0 kg Use the table below to determine R2 length G1 G2 40...

Page 54: ...3 Checking refrigerant piping Setup 447 To charge additional refrigerant WARNING Only use R32 as refrigerant Other substances may cause explosions and accidents R32 contains fluorinated greenhouse gas...

Page 55: ...ble twin Length L1 pair L1 L2 twin triple L1 L2 L4 double twin To determine the complete recharge amount kg in case of size down liquid pipe size Model Length m a 3 10 RZAG71 100 3 2 RZAG125 140 3 7 a...

Page 56: ...e 4 Push the BS3 button once 5 When the display is not blinking anymore press the BS3 button again to deactivate vacuum mode 6 Press the BS1 button to leave the setting mode Make sure to reattach the...

Page 57: ...abel 1 Fill in the label as follows b Contains fluorinated greenhouse gases 2 1 1 1 2 2 kg tCO2 eq GWP kg 1000 kg kg GWP XXX RXXX a f c d e a If a multilingual fluorinated greenhouse gases label is de...

Page 58: ...put current 16 A and 75 A per phase 7 7 3 Precautions when connecting the electrical wiring DANGER RISK OF ELECTROCUTION WARNING All wiring MUST be performed by an authorised electrician and MUST comp...

Page 59: ...with the appropriate tool b a a Stranded conductor wire b Round crimp style terminal Use the following methods for installing wires Wire type Installation method Single core wire c b c a a A AA A a C...

Page 60: ...ge circuit breaker Must comply with applicable legislation a MCA Minimum circuit ampacity Stated values are maximum values see electrical data of combination with indoor units for exact values 7 7 6 T...

Page 61: ...1 L1 L2 L3 L1 L2 L3 N b b a a a I II III IV Pair twin triple double twin M S Master slave a Interconnection cables b Power supply cable c Earth leakage circuit breaker d Fuse e User interface INFORMAT...

Page 62: ...the wiring according to the illustration above 5 Choose a knockout hole and remove the knockout hole by tapping on the attachment points with a flat head screwdriver and a hammer 6 Route the wiring t...

Page 63: ...piping After making the knockout holes we recommend to remove the burrs and paint the edges and areas around the edges using repair paint to prevent rusting When passing electrical wiring through the...

Page 64: ...installation refrigerant accumulates in the compressor the insulation resistance over the poles can drop but if it is at least 1 M then the unit will not break down Use a 500 V mega tester when measur...

Page 65: ...heat up the compressor oil to avoid oil shortage and compressor breakdown during startup NOTICE ALWAYS operate the unit with thermistors and or pressure sensors switches If NOT burning of the compress...

Page 66: ...or locally installed protection devices are installed according to this document and have NOT been bypassed The power supply voltage matches the voltage on the identification label of the unit There...

Page 67: ...ings menu is displayed 3 Select Test Operation Return Setting Service Settings 1 3 Test Operation Maintenance Contact Field Settings Demand Min Setpoints Differential Group Address 4 Press Test Operat...

Page 68: ...ently set temperature is not displayed The wiring is disconnected or there is a wiring error between power supply and outdoor unit between outdoor unit and indoor units between indoor unit and user in...

Page 69: ...Alpha series 4P695307 1 2022 05 8 6 Dedicated field settings for technical cooling In case the system is used for technical cooling please apply the following remote controller settings Field setting...

Page 70: ...d the unit operates properly make sure the following is clear for the user Make sure that the user has the printed documentation and ask him her to keep it for future reference Inform the user that he...

Page 71: ...ntenance of the outdoor unit 10 2 Maintenance safety precautions DANGER RISK OF ELECTROCUTION DANGER RISK OF BURNING SCALDING NOTICE Risk of electrostatic discharge Before performing any maintenance o...

Page 72: ...uit and cause electrical shock 5 After the service is finished plug the junction connector back in Otherwise the malfunction code E7 will be displayed and normal operation will NOT be performed For de...

Page 73: ...is heard when the system is in cooling or defrost operation This is the sound of refrigerant gas flowing through both indoor and outdoor units A gurgling sound is heard after defrost operation This is...

Page 74: ...vated stop the unit and find out why the safety device was activated before resetting it NEVER shunt safety devices or change their values to a value other than the factory default setting If you are...

Page 75: ...ICE The outdoor unit is equipped with a low pressure switch or a low pressure sensor to protect the compressor by turning it OFF NEVER short circuit the low pressure switch during pump down operation...

Page 76: ...ot closed properly during compressor operation the system cannot be pumped down 5 Once the compressor stops after 2 5 minutes close the gas stop valve within 3 minutes after the compressor has stopped...

Page 77: ...agram Wiring diagram Information requirements for Eco Design 13 2 Service space Outdoor unit Suction side In the illustrations below the service space at the suction side is based on 35 C DB and cooli...

Page 78: ...HU HB HD HU mm HU a b c d e eB eD A B C D E HB HD 100 1 100 1 1 For better serviceability use a distance 250 mm A B C D Obstacles walls baffle plates E Obstacle roof a b c d e Minimum service space b...

Page 79: ...r units Install the upper unit high enough above the lower unit to prevent ice buildup at the upper unit s bottom plate B1 B2 B1 If there is no danger of drainage dripping and freezing between the upp...

Page 80: ...re connection Heating Cooling 13 4 Wiring diagram Outdoor unit The wiring diagram is delivered with the unit located at the inside of the service cover 1 Connection diagram English Translation Connect...

Page 81: ...S3 and DS1 switches 2 When operating do not short circuit protective devices S1PH S1PLand Q1E 3 Refer to the combination table and the option manual for how to connect the wiring to X6A X28A and X77A...

Page 82: ...on R1 R8 A1P Y1 only Resistor R1T Thermistor air R2T Thermistor discharge R3T Thermistor suction R4T Thermistor heat exchanger R5T Thermistor heat exchanger middle R6T Thermistor liquid R7T Thermistor...

Page 83: ...aikin eu 2 To continue choose Continue to Europe for the international website Other country for a country related site Result You are directed to the Seasonal efficiency webpage 3 Under Eco Design En...

Page 84: ...plication explaining how to install configure and maintain it Operation manual Instruction manual specified for a certain product or application explaining how to operate it Maintenance instructions I...

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