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4 Product overview

Cooling system

24

Installation and operation manual M70A_260 Flex RPI703M26000 EU V1.1 EN 2022-08-02

4.9 

Cooling system

Related topics

“5.1 Installation location”, page 31

“11.5 Cleaning/replacing the fan module”, page 111

“11.6 Cleaning the air outlets”, page 115

4.9.1  Air inlet, air outlet and fan module

Fig. 4.18:  Air inlet with fan module on the left side

Fig. 4.19:  Air outlet on the right side

The air for cooling is drawn in through the air inlet on the left side 
of the inverter. The heated air is released back to the environ-
ment through the air outlets on the right side of the inverter. 

The fan module can be replaced.

4.9.2  Internal fans

The internal fans circulate the air inside the inverter to prevent 
heat buildup.

Fig. 4.20:  Internal fan 1

Fig. 4.21:  Internal fan 2

Related topics

“11.3 Clean/replace internal fan 1”, page 102 

“11.4 Clean/replace internal fan 2”, page 106 

Summary of Contents for M70A

Page 1: ...olar Inverter M70A_260 Delta part number RPI703M260000 Product version L or M Europe Installation and operation manual M70A_260 Flex RPI703M26000 EU V1 1 EN 2022 08 02 Installation and Operation Manua...

Page 2: ...proved for installation and commissioning of grid connected solar inverters The information in this manual is to be treated as confidential and no part of this manual may be reproduced without prior w...

Page 3: ...DC connector panel to protect the third row of DC connectors from envi ronmental influences On the M70A the cover plate can be removed to use the third row of DC connec tors The mounting plate for wa...

Page 4: ...8 1 Grounding the inverter housing 23 4 8 2 PE connection 23 4 9 Cooling system 24 4 9 1 Air inlet air outlet and fan module 24 4 9 2 Internal fans 24 4 9 3 Internal heat sinks 25 4 10 Sub 1G antenna...

Page 5: ...off 52 5 7 10 Connecting a PC 53 5 8 Grid and system protection 53 6 Planning the Commissioning 54 6 1 Introduction 54 6 2 Commissioning options 54 6 2 1 Delta Service Software DSS 54 6 2 2 MyDeltaSo...

Page 6: ...rotection devices 117 11 7 1 Remove the DC surge protection device 117 11 7 2 Transfer the screws for the new DC surge protection devices 120 11 7 3 Install DC surge protection devices 122 11 8 Instal...

Page 7: ...ble 157 13 6 Dismantling the type 1 2 combined AC surge protection device optional 158 13 7 Dismantling the type 1 2 combined DC surge protection device optional 159 13 8 Dismantling the Sub 1G antenn...

Page 8: ...solar systems 1 3 Warning notices and warning symbols This manual uses the following warning notices and symbols to describe potential dangers and the measures necessary for reducing these dangers Alw...

Page 9: ...de scribed here This is used for checking that the work step has been completed correctly 2 Second step 3 Third step Work step is now complete If the work instructions consist of just one single step...

Page 10: ...The inverter is heavy Lift and carry the inverter with at least 2 people WARNING Hot surfaces The surface of the inverter can get very hot during operation Always wear safety gloves when touching the...

Page 11: ...r system into AC power which is fed into the local power grid Use in conformity with the power specifications and envi ronmental conditions specified by the manufacturer The following uses are regarde...

Page 12: ...upporting the weight of the DC cables Mounting tool for DC plug 2 For unscrewing the Amphenol H4 DC plugs from the DC connections of the inverter DC plug for DC 18 Amphenol H4 DC plug for 4 6 mm2 H4CF...

Page 13: ...EU V1 1 EN 2022 08 02 4 Product overview Scope of delivery 4 1 2 Sub 1G antenna Sub 1G antenna 1 Bracket 1 For mounting the Sub 1G antenna to the inverter 1 set of mounting screws 3 For screwing the...

Page 14: ...8 02 4 2 Accessories to be ordered separately Accessories for floor mounting Feet for ground mounting 2 For screwing the inverter onto the floor Mounting screws for feet 4 For mounting the feet on the...

Page 15: ...g 4 1 Overview of external components and connections 1 Air outlet 8 Grounding connection 2 Wi Fi module optional 9 Left mounting hole grounding connection 3 DC disconnector 1 2 10 AC cable gland 4 DC...

Page 16: ...EU V1 1 EN 2022 08 02 1 2 6 3 4 5 Fig 4 2 Overview of internal components with protective covers removed 1 Type 2 DC surge protection devices 4 AC connection terminals 2 Internal fan 2 5 Internal fan...

Page 17: ...ED lights up yel low LED flashes green LED lights up green LED flashes red LED lights up red Table 4 2 Meaning of the LED symbols used in this manual Grid Alarm Explanation Countdown inverter is start...

Page 18: ...neutral conductor The PE connection is realized as a separate bolt The M8 nut spring washer and washer are already mounted in the inverter 4 5 3 AC Surge Protection Devices Fig 4 5 View of type 2 AC...

Page 19: ...rs each Plug type DC Amphenol H4 for 4 6 mm2 Amphenol part number H4CFC4D MS DC Amphenol H4 for 4 6 mm2 Amphenol part number H4CMC4D MS 18 pairs of DC plugs are supplied in the scope of delivery Fig 4...

Page 20: ...4 to 6 Germany The DC disconnectors meet the requirements of VDE0100 712 France The DC disconnectors meet the requirements of UTE 15 712 1 Fig 4 10 Both DC disconnectors in the OFF position the connec...

Page 21: ...ge protection devices with the cover removed The inverter has replaceable type 2 DC surge protection devices EN 50539 11 which protect the inverter against excessive volt ages The DC surge protection...

Page 22: ...tion card 1 Digital inputs and external power off terminal block 2 DIP switch for the RS485 termination resistor 3 2 x dry contacts terminal block 4 RS485 terminal block 5 Protection against electroma...

Page 23: ...he inverter offers two possibilities for grounding the inverter housing Fig 4 15 Grounding connection at the left foot of the inverter Fig 4 16 Grounding connection at the left mounting hole To connec...

Page 24: ...an module on the left side Fig 4 19 Air outlet on the right side The air for cooling is drawn in through the air inlet on the left side of the inverter The heated air is released back to the environ m...

Page 25: ...peration manual M70A_260 Flex RPI703M26000 EU V1 1 EN 2022 08 02 4 9 3 Internal heat sinks Fig 4 22 Rear cover plate Fig 4 23 Internal heat sinks with rear cover plate removed The rear cover plate can...

Page 26: ...0A_260 Flex RPI703M26000 EU V1 1 EN 2022 08 02 4 10 Sub 1G antenna Fig 4 24 Sub 1G antenna Sub 1G antenna and mounting materials are included in the scope of delivery Related topics 6 Planning the Com...

Page 27: ...A_260 Flex RPI703M26000 EU V1 1 EN 2022 08 02 4 11 Wi Fi module Fig 4 25 Position of the Wi Fi module The Wi Fi module is an accessory that must be ordered sepa rately Related topics 6 Planning the Co...

Page 28: ...kings 28 Installation and operation manual M70A_260 Flex RPI703M26000 EU V1 1 EN 2022 08 02 4 12 Type plate and markings Fig 4 26 Type plate and markings Information on the type plate OBX19900075WL Fi...

Page 29: ...out neutral conductors 3P3W 3 phases PE and 3 phase grids with neutral conductors 3P4W 3 phases N PE 50 60 Hz AC nominal frequency 111 6A max Maximum AC current cos 0 8ind 0 8cap Setting range of the...

Page 30: ...inside the inverter during operation and this volt age remains present for up to 60 seconds after disconnection from the power sup ply WEEE mark The inverter must not be disposed of as standard househ...

Page 31: ...ition Use mounting materials dowels screws etc that are suitable for the wall or the mounting system as well as the heavy weight of the inverter Mount the inverter on a vibration free wall to avoid di...

Page 32: ...s protect the inverter from direct sun UV radiation rain and snow The inverter has a protection degree of IP65 and can be installed indoors and outdoors Despite this the inverter should be pro tected...

Page 33: ...tion Installation location 5 1 6 Installation clearances and air circulation 300 300 600 200 200 60 and air circulation Fig 5 4 Mounting distances and air circulation variant 1 in mm 300 300 200 200 6...

Page 34: ...When the operating temperature range without derating is exceeded the inverter reduces the AC power fed into the grid When the Total operating temperature range is exceeded the inverter stops feeding...

Page 35: ...00V 720V 800V 900V UAC 230 400 VAC cos 0 9 Ambient temperature C Fig 5 7 Characteristic curve Active power control depending on the ambient temperature cos 0 90 AC voltage 230 400 V 30 0 10 20 40 50 6...

Page 36: ...60 70 80 90 100 110 460V 520V 600V 720V 800V 900V UAC 230 400 VAC cos 0 9 Ambient temperature C Fig 5 9 Characteristic curve Apparent power control depending on the ambient temperature cos 0 90 AC vol...

Page 37: ...tallation and operation manual M70A_260 Flex RPI703M26000 EU V1 1 EN 2022 08 02 5 3 Dimensions 82 82 82 410 82 82 460 11 31 17 27 20 95 25 595 263 4 699 144 5 629 538 7 6 5 Fig 5 11 Inverter with moun...

Page 38: ...8 Installation and operation manual M70A_260 Flex RPI703M26000 EU V1 1 EN 2022 08 02 Sub 1G Wi Fi 739 731 766 80 Fig 5 12 Inverter dimensions with antennae in mm 340 310 130 75 15 12 5 60 60 Fig 5 13...

Page 39: ...inverter meets the require ments of DIN VDE 0100 712 Possible error events were assessed by Delta in accordance with the current installation standards The assessments showed that no hazards arise fro...

Page 40: ...To increase the safety of the system always use the grounding screw to ground the inverter housing even when this is not required by the local regulations Always ground the inverter housing before co...

Page 41: ...gh currents Germany Follow the installation instructions of VDE 0100 712 This standard contains the requirements for minimum cable diameters and for avoiding overheating due to high currents 5 4 8 3 S...

Page 42: ...ped aluminum cables When using sector shaped aluminum cables without Al Cu compression joints insert each cable into the clamping point as shown in the picture Al se Fig 5 19 Correct position of secto...

Page 43: ...the solar system is dimensioned incorrectly this may damage the inverter When calculating the module string always pay attention to technical specifications of the inverter input voltage range maximum...

Page 44: ...DC4 3 DC5 1 DC5 2 DC5 3 DC6 1 DC6 2 DC6 3 DC 1 DC 2 DC 3 DC 4 DC 5 DC 6 1 2 3 DC 1 DC 2 DC 3 DC 4 DC 5 DC 6 1 2 3 Fig 5 23 Arrangement of the DC inputs on the DC connection panel 5 5 4 Functioning of...

Page 45: ...re three module strings per DC input DC 1 DC 2 DC 3 DC 4 DC 5 DC 6 1 2 3 MPPT max 15 7 kW per MPPT DC 1 DC 2 DC 3 DC 4 DC 5 DC 6 1 2 3 MPPT max 15 7 kW per MPPT Fig 5 26 Connection of three module str...

Page 46: ...er The DC plugs are only suitable for copper wire You can download the assembly instructions for the DC plugs from Amphenol at www amphenol solar com If you want to order more or need a different size...

Page 47: ...1 2 combined surge protection devices can be ordered as accessories To install the type 1 2 combination surge protection devices the inverter must be opened Therefore it is best to install the type 1...

Page 48: ...ry Wi Fi module optional accessory 5 7 2 Components of the communication card The connections for RS485 the digital inputs the dry contacts and the external power off EPO are all on the communication...

Page 49: ...itch on the RS485 termination resistor Lay the communication cable with a suitable clearance to the AC and DC cables to prevent interference in the data connection Connecting multiple inverters to a d...

Page 50: ...the MyDeltaSolar Cloud or another monitor ing system The inverter can be connected to the DC1 via RS485 Sub 1G or Wi Fi Connection via RS485 Observe the general instructions in section 5 7 5 Connectio...

Page 51: ...tion card contains 2 pairs of dry contacts each of which can be connected to an external acoustic or optical alarm device The communication card also has a 12 VDC power supply Both relays are designed...

Page 52: ...k with digital inputs for connecting a ripple control receiver 5 7 9 External power off Fig 5 31 Terminal block with digital inputs To disconnect the inverter AC side from the grid connection point a...

Page 53: ...re DSS For changing the inverter settings To select a suitable USB RS485 adapter please contact Delta Customer Service You can download the DSS at https solarsolutions delta emea com Cable requirement...

Page 54: ...hone tablet with iOS or Android The mobile device is connected directly to the inverter via Wi Fi point to point connection This requires the Wi Fi module to be installed on the inverter which must be...

Page 55: ...modules when it is under load Turn both DC disconnectores to the OFF position Disconnect the connection to the grid so that the inverter cannot feed energy into the grid Disconnect the inverter from...

Page 56: ...nnecting the communication card Optional 7 6 Connecting the communication card page 65 Connecting the PC to the inverter This step is only necessary if commissioning is carried out via PC 7 6 7 Connec...

Page 57: ...ht The inverter is heavy Lift and carry the inverter with at least 2 people The feet for floor mounting must be ordered separately 1 Screw the 2 feet for ground mounting onto the underside of the inve...

Page 58: ...al the inverter must always be screwed onto the base during wall mounting Deviations from this are only possible in exceptional cases approved by Delta Electronics Always check with Delta Customer Ser...

Page 59: ...rter on the mounting plate 4 Check that the inverter is correctly mounted on the mount ing plate 5 Screw the lower left side of the inverter onto the wall or mounting system using the M6 screw spring...

Page 60: ...the inverter to the grid and the solar modules The grounding cable cross section must be at least 6 mm2 The inverter housing can be grounded at 2 points External bottom left at the grounding screw In...

Page 61: ...able lugs according to the following table PE screw material nickel plated Cables Cable lug Copper Copper tin coated Pure copper Aluminum Aluminum tin coated Al Cu crimp connectors Table 7 1 Permissib...

Page 62: ...les This isolates the inverter from all the AC and DC voltage sources and renders it de energized 1 To ensure that no voltage can be applied to the inverter during installation work open the isolating...

Page 63: ...tallation Preparing electrical installation Installation and operation manual M70A_260 Flex RPI703M26000 EU V1 1 EN 2022 08 02 5 Unscrew and open the lower door lock cover 6 Open the upper and lower d...

Page 64: ...paring electrical installation 64 Installation and operation manual M70A_260 Flex RPI703M26000 EU V1 1 EN 2022 08 02 7 Open the door and secure it on top with the Allen key 8 Alternatively the door ca...

Page 65: ...rnal fan 1 2 DIP switch for the RS485 termination resistor 3 2 x dry contacts terminal block 4 RS485 terminal block 5 Protection against electromagnetic interference EMI Connection Connection type 2x...

Page 66: ...V1 1 EN 2022 08 02 7 6 2 Threading the communication cable 1 Unscrew the cable gland of the communication connection and remove the cable gland and seal 2 Thread all communication cables through the...

Page 67: ...67 7 Installation Connecting the communication card Installation and operation manual M70A_260 Flex RPI703M26000 EU V1 1 EN 2022 08 02...

Page 68: ...4 DATA RS485 5 DATA RS485 6 DATA RS485 Fig 7 2 Terminal assignment of the RS485 terminal block Terminal pair 3 4 or 5 6 can be used to connect a data logger The second terminal pair is only required...

Page 69: ...N If the data logger is located at one end of the RS485 chain then also switch on the RS485 termination resistor of the data logger If the data logger does not have an integrated RS485 termination res...

Page 70: ...es not have an integrated RS485 termination resistor Depending on where the DC1 is located in the RS485 bus an external RS485 termination resistor may need to be connected see Fig 7 4 p 70 RS485 1 3 4...

Page 71: ...ion and operation manual M70A_260 Flex RPI703M26000 EU V1 1 EN 2022 08 02 7 6 3 2 Wiring for a single inverter 1 Connect the DATA wire to terminal 5 and the DATA wire to terminal 6 2 Set the DIP switc...

Page 72: ...the cable coming from the data logger Connect the DATA wire to terminal 5 and the DATA wire to terminal 6 On the cable going to the second inverter Connect the DATA wire to terminal 3 and the DATA wi...

Page 73: ...2022 08 02 Data logger 3 On the cable coming from the previous inverter Con nect the DATA wire to terminal 5 and the DATA wire to terminal 6 On the cable going to the next inverter Connect the DATA wi...

Page 74: ...rd 74 Installation and operation manual M70A_260 Flex RPI703M26000 EU V1 1 EN 2022 08 02 Data logger 5 Connect the DATA wire to terminal 5 and the DATA wire to terminal 6 6 Set the DIP switch for the...

Page 75: ...necting 2 external alarm units with external 12 VDC power supply to the dry contacts An event can be assigned to the dry contacts with Delta Service Software or the MyDeltaSolar app after commis sioni...

Page 76: ...als V1 and K1 30 Terminals V1 and K2 60 Terminals V1 and K3 100 Terminals V1 and K4 R1 R2 R3 R4 V1 K0 K1 K2 K3 K4 K5 K6 Digital inputs Ripple control receiver Fig 7 7 Connection diagram for a ripple c...

Page 77: ...ioning Accessories Description Standard USB RS485 adapter For connecting the PC to the inverter Delta Service Software DSS For changing the inverter set tings To select a suitable USB RS485 adapter pl...

Page 78: ...under pressure A thin non conductive oxide layer forms within a few minutes on de insulation which increases the contact resistance between the conductor and clamping point The specific conductivity a...

Page 79: ...aluminum cables 2 When using sector shaped aluminum cables with Al Cu compres sion joints e g from Klauke Elpress or Mecatraction observe the following instructions Select compression joints suitable...

Page 80: ...D3 D4 D5 P Fig 7 15 Use of the parts of the AC cable glands depending on the cable diameter Cable diameter Torque P D1 51 0 to 57 0 mm 8 5 Nm 7 mm D2 43 0 to 50 0 mm 8 5 Nm 5 mm D3 36 0 to 43 0 mm 8 0...

Page 81: ...grid AC Installation and operation manual M70A_260 Flex RPI703M26000 EU V1 1 EN 2022 08 02 2 Thread the cable through the cable gland and seal 3 Insert the seal and cable gland for the AC connection a...

Page 82: ...ration manual M70A_260 Flex RPI703M26000 EU V1 1 EN 2022 08 02 7 8 Connecting the solar modules DC Special tools required Fig 7 16 Mounting tools for DC connectors included in deliv ery 1 If the third...

Page 83: ...nual M70A_260 Flex RPI703M26000 EU V1 1 EN 2022 08 02 2 Pull out the cover caps of the DC connections 3 Insert the metal brackets to support the DC cables 4 Plug in the DC cables 5 The illustration on...

Page 84: ...stallation If you have connected a PC for commission ing see 7 6 7 Connecting a PC via RS485 optional page 77 you must disconnect the PC from the inverter again after commissioning see 8 2 Commissioni...

Page 85: ...Completing electrical installation Installation and operation manual M70A_260 Flex RPI703M26000 EU V1 1 EN 2022 08 02 4 Close the upper door latch and screw on the cover 5 Insert the Allen key into th...

Page 86: ...res a PC with the com missioning software and Delta Service Software DSS in stalled Both can be downloaded from https solarsolutions delta emea com en Solar Inverter Support 171 htm Turn both DC disco...

Page 87: ...rocedure 1 Launch the MyDeltaSolar app 2 Follow the instructions in the app to connect your mobile device to the inverter 3 Once the connection is established follow the instructions in the commission...

Page 88: ...sconnectores to the OFF position Disconnect the connection to the grid so that the inverter cannot feed energy into the grid Disconnect the inverter from all AC and DC voltage sources Make sure that n...

Page 89: ...ernal load isolating switch is closed AC cable is not connected correctly Check the AC cable connection E10 E15 E20 Grid voltage lies below the UVR setting undervoltage detection Check the grid voltag...

Page 90: ...devices have tripped Check on the inverter whether the DC surge protection devices have tripped If yes replace the card with the DC surge protection devices One or more DC surge protection devices are...

Page 91: ...elta Customer Service F23 Internal error Contact Delta Customer Service F24 Insulation fault in the PV system Check the insulation of the DC inputs Large PV system capacitance between Plus and Ground...

Page 92: ...onics Check the grid waveform The grid connection of the inverter must be kept away from non linear loads if neces sary move it further away Internal error Contact Delta Customer Service F50 Internal...

Page 93: ...rter from the solar modules when it is under load Turn both DC disconnectores to the OFF position Disconnect the connection to the grid so that the inverter cannot feed energy into the grid Disconnect...

Page 94: ...the internal capacitors have discharged Always use the supplied mounting tools to open the DC connectors When disconnecting the DC cables take care not to damage the connectors Do not use force Pull...

Page 95: ...crew and open the upper door lock cover 7 Unscrew and open the lower door lock cover 95 10 Disconnecting the inverter from the power supply before working on it Procedure Installation and operation ma...

Page 96: ...lock 9 Open the door and secure it on top with the Allen key 10 Disconnecting the inverter from the power supply before working on it Procedure 96 Installation and operation manual M70A_260 Flex RPI7...

Page 97: ...isolating switch If you detect no voltage continue to the next step 11 Unscrew the AC cable gland 12 Unscrew the conductors of the AC cable and pull out the AC cable 97 10 Disconnecting the inverter...

Page 98: ...10 Disconnecting the inverter from the power supply before working on it Procedure 98 Installation and operation manual M70A_260 Flex RPI703M26000 EU V1 1 EN 2022 08 02...

Page 99: ...ces 131 11 9 1 Notes 131 11 9 2 Removing type 2 AC surge protection devices 131 11 9 3 Transfer screws for the new type 2 AC surge protection devices 134 11 9 4 Installing type 2 AC surge protection d...

Page 100: ...feed energy into the grid Disconnect the inverter from all AC and DC voltage sources Make sure that none of the connections can be restored accidentally Ensure that the DC cables cannot be touched acc...

Page 101: ...the Wi Fi module Perform the instructions listed in chapter 10 Disconnecting the inverter from the power supply before working on it page 93 before you start work on the inverter The following work c...

Page 102: ...re working on it page 93before you start work on the inverter Do not use any sharp pointed or hard objects for cleaning Do not use liquids for cleaning The screws are very small and can easily fall do...

Page 103: ...if the fan is to be replaced The work step is not necessary for cleaning the fan 3 Unscrew the fan from the cover and pull it out 103 11 Replacing or cleaning components installing accessories Clean...

Page 104: ...d out if the fan is to be replaced The work step is not necessary for cleaning the fan 5 Insert and screw the fan into the cover 11 Replacing or cleaning components installing accessories Clean replac...

Page 105: ...able plug 8 To complete the work follow the instructions in the chapter 12 Recommissioning the inverter after work page 145 105 11 Replacing or cleaning components installing accessories Clean replace...

Page 106: ...supply before working on it page 93 before you start work on the inverter Do not use any sharp pointed or hard objects for cleaning Do not use liquids for cleaning The screws are very small and can ea...

Page 107: ...h the DC surge protection devices 3 Unscrew and pull out the cover The fan is screwed onto the cover 107 11 Replacing or cleaning components installing accessories Clean replace internal fan 2 Install...

Page 108: ...aning the fan 4 Unscrew the fan from the cover and pull it out 5 Clean the fan and metal housing with compressed air or a firm brush 11 Replacing or cleaning components installing accessories Clean re...

Page 109: ...The work step is not necessary for cleaning the fan 6 Insert and screw the fan into the cover 109 11 Replacing or cleaning components installing accessories Clean replace internal fan 2 Installation...

Page 110: ...for the DC surge protection devices 10 To complete the work follow the instructions in the chapter 12 Recommissioning the inverter after work page 145 11 Replacing or cleaning components installing a...

Page 111: ...the inverter from the power supply before working on it page 93 before you start work on the inverter Do not use any sharp pointed or hard objects for cleaning Do not use liquids for cleaning The scr...

Page 112: ...Clean the fan module with a compressed air cleaner or a firm brush 11 Replacing or cleaning components installing accessories Cleaning replacing the fan module 112 Installation and operation manual M...

Page 113: ...wer cable you use for which fan 5 Insert the fan module so that the power cables are on the right side of the fan module 113 11 Replacing or cleaning components installing accessories Cleaning replaci...

Page 114: ...instructions in the chapter 12 Recommissioning the inverter after work page 145 11 Replacing or cleaning components installing accessories Cleaning replacing the fan module 114 Installation and operat...

Page 115: ...y fall down You should therefore use a magnetic screwdriver 1 Unscrew and remove the air filter 2 Clean the air filter with a compressed air cleaner or a firm brush 115 11 Replacing or cleaning compon...

Page 116: ...e the work follow the instructions in the chapter 12 Recommissioning the inverter after work page 145 11 Replacing or cleaning components installing accessories Cleaning replacing the fan module 116 I...

Page 117: ...e pro tection devices can be ordered as accessories The procedure is the same for type 2 and type 1 2 DC surge protection devices DC surge protection devices are supplied without screws All screws inc...

Page 118: ...internal fan 2 3 Pull out the signal cable 11 Replacing or cleaning components installing accessories Installing replacing DC surge protection devices 118 Installation and operation manual M70A_260 Fl...

Page 119: ...down The screws on the DC bus cannot fall out 4 Loosen all screws and remove the card 119 11 Replacing or cleaning components installing accessories Installing replacing DC surge protection devices In...

Page 120: ...the 10 screws on the right for the DC bus on the old DC surge protection devices 11 Replacing or cleaning components installing accessories Installing replacing DC surge protection devices 120 Instal...

Page 121: ...ews on the right for the DC bus includ ing spring washers and washers into the new DC surge protection devices 121 11 Replacing or cleaning components installing accessories Installing replacing DC su...

Page 122: ...ghten the two mounting screws on the left 1 Insert the new DC surge protection devices and tighten all screws to the specified torque 11 Replacing or cleaning components installing accessories Install...

Page 123: ...ion devices 5 To complete the work follow the instructions in the chapter 12 Recommissioning the inverter after work page 145 123 11 Replacing or cleaning components installing accessories Installing...

Page 124: ...rt work on the inverter AC surge protection devices are supplied without screws All screws including spring washers and washers of the old AC surge protection devices must be reused for the new AC sur...

Page 125: ...e top of the card 125 11 Replacing or cleaning components installing accessories Installing replacing type 1 2 combined AC surge protection devices Installation and operation manual M70A_260 Flex RPI7...

Page 126: ...screws on the AC bus cannot fall out 3 Loosen all screws and remove the card 11 Replacing or cleaning components installing accessories Installing replacing type 1 2 combined AC surge protection devic...

Page 127: ...crews on the right until the card has already been screwed on 2 Screw the four screws on the left for the AC bus includ ing spring washers and washers into the new AC surge protection devices 127 11 R...

Page 128: ...ction device Related topics 11 9 2 Removing type 2 AC surge protection devices page 131 1 Install the new card and tighten all screws on the printed circuit board 11 Replacing or cleaning components i...

Page 129: ...ard 3 Screw the grounding cable to the PE screw 129 11 Replacing or cleaning components installing accessories Installing replacing type 1 2 combined AC surge protection devices Installation and opera...

Page 130: ...complete 5 To complete the work follow the instructions in the chapter 12 Recommissioning the inverter after work page 145 11 Replacing or cleaning components installing accessories Installing replaci...

Page 131: ...ed AC surge pro tection devices can be ordered as accessories AC surge protection devices are supplied without screws All screws including spring washers and washers of the old AC surge protection dev...

Page 132: ...he top of the card 11 Replacing or cleaning components installing accessories Installing replacing type 2 combined AC surge protection devices 132 Installation and operation manual M70A_260 Flex RPI70...

Page 133: ...screws on the AC bus cannot fall out 3 Loosen all screws and remove the card 133 11 Replacing or cleaning components installing accessories Installing replacing type 2 combined AC surge protection de...

Page 134: ...s on the right until the card has already been screwed on 2 Screw the four screws on the left for the AC bus includ ing spring washers and washers into the new AC surge protection devices 11 Replacing...

Page 135: ...bined AC Surge protection device page 128 1 Install the new card and tighten all screws 135 11 Replacing or cleaning components installing accessories Installing replacing type 2 combined AC surge pro...

Page 136: ...AC surge protection devices is complete 4 To complete the work follow the instructions in the chapter 12 Recommissioning the inverter after work page 145 11 Replacing or cleaning components installin...

Page 137: ...b 1G antenna 1 Unscrew the mounting frame 2 Rotate the mounting frame with the Sub 1G antenna downward 3 Pull the mounting frame downward 137 11 Replacing or cleaning components installing accessories...

Page 138: ...ng the Sub 1G antenna Keep the cover cap of the Sub 1G connection 1 Unscrew and remove the cover cap of the Sub 1G con nector 11 Replacing or cleaning components installing accessories Installing repl...

Page 139: ...a upside down from below 4 Rotate the mounting frame with the Sub 1G antenna upward 5 Screw on the mounting frame 139 11 Replacing or cleaning components installing accessories Installing replacing ty...

Page 140: ...ntenna is complete 11 Replacing or cleaning components installing accessories Installing replacing type 2 combined AC surge protection devices 140 Installation and operation manual M70A_260 Flex RPI70...

Page 141: ...necting the inverter from the power supply before working on it page 93 before you start work on the inverter 11 11 2 Removing the Wi Fi module 1 Pull the cable of the Wi Fi module out of the communic...

Page 142: ...ule is not to be fitted screw on the cable gland including the blind plug 11 Replacing or cleaning components installing accessories Installing replacing the Wi Fi module 142 Installation and operatio...

Page 143: ...odule 2 Pull the cable through the seal and cable gland and tighten the cable gland 143 11 Replacing or cleaning components installing accessories Installing replacing the Wi Fi module Installation an...

Page 144: ...Blue D DATA Installation of the Wi Fi module is complete 4 To complete the work follow the instructions in the chapter 12 Recommissioning the inverter after work page 145 11 Replacing or cleaning com...

Page 145: ...er from the solar modules when it is under load Turn both DC disconnectores to the OFF position Disconnect the connection to the grid so that the inverter cannot feed energy into the grid Disconnect t...

Page 146: ...of the AC cable 2 Tighten the AC cable gland 3 Remove the Allen key from the top of the door 4 Close the door 12 Recommissioning the inverter after work Procedure 146 Installation and operation manua...

Page 147: ...r lock and screw on the cover 6 Close the lower door lock and screw on the cover 147 12 Recommissioning the inverter after work Procedure Installation and operation manual M70A_260 Flex RPI703M26000 E...

Page 148: ...etween the inverter and the grid connection point or inverter and the solar modules 10 Turn both DC disconnectores to the ON position Recommissioning is complete 12 Recommissioning the inverter after...

Page 149: ...sure that none of the connections can be restored accidentally Ensure that the DC cables cannot be touched accidentally DANGER Electric shock The inverter has a high leakage current value Always conn...

Page 150: ...you are continuing to use the components of the old inverter attach the appropriate parts of the replacement device to the old inverter before returning it to Delta Electronics This is also necessary...

Page 151: ...page 159 Dismantle the Sub 1G antenna Only necessary if installed 13 8 Dismantling the Sub 1G antenna optional page 160 Dismantle the Wi Fi module Only necessary if installed 13 9 Dismantling the Wi...

Page 152: ...res to the OFF position 3 Wait at least 60 seconds until the internal capacitors have discharged Always use the supplied mounting tools to open the DC connectors When disconnecting the DC cables take...

Page 153: ...om the upper door lock 6 Unscrew and open the upper door lock cover 7 Unscrew and open the lower door lock cover 153 13 Replacing the inverter Installation and operation manual M70A_260 Flex RPI703M26...

Page 154: ...pen the upper and lower door lock 9 Open the door and secure it on top with the Allen key 13 Replacing the inverter 154 Installation and operation manual M70A_260 Flex RPI703M26000 EU V1 1 EN 2022 08...

Page 155: ...n the AC power external load isolating switch If you detect no voltage continue to the next step 11 Unscrew the AC cable gland 12 Unscrew the conductors of the AC cable and pull out the AC cable 155 1...

Page 156: ...13 Replacing the inverter 156 Installation and operation manual M70A_260 Flex RPI703M26000 EU V1 1 EN 2022 08 02...

Page 157: ...cables from the communication card 2 Unscrew the cable gland of the communication connection and remove the cable cable gland and seal 157 13 Replacing the inverter Installation and operation manual...

Page 158: ...see 11 8 2 Remove the type 1 2 combined AC surge protection device page 124 before returning the inverter Only type 2 AC surge protection devices are sup plied with the replacement unit 13 Replacing t...

Page 159: ...ove them see 11 7 1 Remove the DC surge protection device page 117 before returning the inverter Only type 2 DC surge protection devices are sup plied with the replacement unit 159 13 Replacing the in...

Page 160: ...na op tional See 11 10 2 Removing the Sub 1G antenna page 137 for a description 13 Replacing the inverter Dismantling the Sub 1G antenna optional 160 Installation and operation manual M70A_260 Flex RP...

Page 161: ...move it see 11 11 2 Removing the Wi Fi mod ule page 141 before returning the inverter The replacement device does not come with a Wi Fi module 161 13 Replacing the inverter Dismantling the Wi Fi modul...

Page 162: ...er with at least 2 people 1 Unscrew the grounding cable on the inverter 2 Unscrew the inverter from the bottom left and right of the wall or the mounting system 13 Replacing the inverter Removing and...

Page 163: ...ck into the box 5 Package and ship the old inverter in accordance with the description received from Delta Customer Service 6 Install and commission the new inverter in accordance with the installatio...

Page 164: ...r MPPT external string fuses required Overvoltage category 2 II Surge protection devices Type 2 EN 50539 11 replaceable type 1 2 combined up gradeable Galvanic isolation No Output AC M70A Maximum appa...

Page 165: ...mber RPI703M260000 Overall operating temperature range 25 to 60 C Reltaive humidity 0 to 100 non condensing Max operating height 4000 m above sea level Noise level 67 5 dB A Standards and guidelines M...

Page 166: ...Italy supporto italia solar inverter com 800 787 920 toll free Netherlands ondersteuning nederland solar inverter com 0800 022 1104 toll free Poland serwis polska solar inverter com 48 22 335 26 00 P...

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