sop title: delta e5 and bx6.0 installation version ... · introduction ... connecting the inverter...

STANDARD OPERATING PROCEDURE Delta E5 and BX6.0 installation

Version 1.3 Effective date 06/06/2018

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SOP Title: Delta E5 and BX6.0 installation

Version: SOP1121-PV-BT-v1.3

Effective Date: 06/06/2018

DOCUMENT CONTROL

Version no. Date Significant Changes Author Reviewer

1.1 30/04/18 Hyperlinks added Timm Brehm KT, TH, AF

1.2 25/05/18 Multiple sections revised/added Timm Brehm KT, TH, AF

1.3 06/06/18 Added shutdown procedure Timm Brehm KT, TH, AF

Table of Contents

Introduction ................................................................................................................................ 3 Purpose ........................................................................................................................................... 3 Scope ............................................................................................................................................... 3 Symbols used in this document......................................................................................................... 3 General guidelines............................................................................................................................ 3

Safety ................................................................................................................................................................... 3

INSTALLATION ............................................................................................................................. 4 String design guidelines .................................................................................................................... 4

2.1.1 String layout without optimisers ......................................................................................................... 4 2.1.2 String layout with optimisers ............................................................................................................... 4 2.1.3 Shading ................................................................................................................................................. 4 2.1.4 Maximum string voltage ...................................................................................................................... 5 String inverter installation ................................................................................................................ 5

2.2.1 Delta E5 ................................................................................................................................................ 5 2.2.2 Wall mounting ...................................................................................................................................... 5 Inverter wiring ................................................................................................................................. 7

2.3.1 DC wiring .............................................................................................................................................. 7 2.3.2 TS4-R-O optimiser installation ............................................................................................................. 8 2.3.3 PV DC connection to inverter ............................................................................................................... 9 2.3.4 AC wiring .............................................................................................................................................. 9 2.3.5 Delta E5 AC plug ................................................................................................................................. 10 2.3.6 Connecting back-up loads .................................................................................................................. 10 Battery installation ......................................................................................................................... 11

2.4.1 Delta BX6.0 ......................................................................................................................................... 11 2.4.2 Mechanical installation of BX6.0 battery ........................................................................................... 12 2.4.3 Electrical installation of BX6.0 battery ............................................................................................... 13

SYSTEM COMMISSIONING ......................................................................................................... 15 Commissioning tests ....................................................................................................................... 15 Inverter setup ................................................................................................................................ 15

3.2.1 Grid protection settings ..................................................................................................................... 16 3.2.2 Mode of Operation ............................................................................................................................ 16 Connecting the inverter to the carbonTRACK hub ............................................................................ 16

3.3.1 Zigbee Module ................................................................................................................................... 16



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OVERVIEW OF CONNECTION TERMINALS AND SWITCHES ........................................................... 17 Inverter connection terminals and switches .................................................................................... 17 Battery connection terminals and switches ..................................................................................... 18

LABELING AND TESTING ............................................................................................................. 18 Labels ............................................................................................................................................ 18 Commissioning tests ....................................................................................................................... 18

SHUTDOWN AND STARTUP PROCEDURES .................................................................................. 19 Installer shutdown procedure ......................................................................................................... 19 Inspector turn-on procedure ........................................................................................................... 19

EXTERNAL LINKS AND REFERENCES ............................................................................................ 20



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INTRODUCTION

Purpose

This document provides solarcity installation partners and employees with guidelines and instructions for the installation of DELTA E5 Hybrid inverters and BX6 batteries for residential solarZero systems.

Scope

This document applies to single-phase installations with Delta Hybrid inverters and covers the mechanical and electrical part of the inverter and battery installation instructions. The focus of this SOP lies on the physical installation of the Delta E5 inverter, the Delta BX6.0 battery and all required switch gear, DC and AC wiring.

Symbols used in this document

Danger: destruction of property, serious injury or death may occur

Warning: Damage to equipment/ property or minor injury may occur

Note: for informational purposes

Reference to other section in this document, or an external document.

General guidelines

Behavioural

Always follow solarcity’s Code of Conduct while on site.

Safety

Follow NZ Health & Safety laws and regulations, your company’s and solarcity’s Health & Safety Policy.



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INSTALLATION

String design guidelines

To ensure efficient operation and compliance with the regulations, string design options are limited. As per AS/NZS 5033 section 2.1.6, PV modules that are in the same string must have the same tilt and azimuth angle within a tolerance of ±5°. solarcity will determine which layout is most suitable and provide this information prior to the installation. If you find the provided layout to be unsuitable on the day of installation, please contact a member of the solarcity operations team immediately. The below section will provide a better understanding of our design guidelines. You are expected to report any possible discrepancies with the below design guidelines immediately before you proceed with your work.

For any array, the:

• minimum number of polycrystalline modules per string is 6

• maximum number of polycrystalline modules per string is 13 (monocrystalline 12)

2.1.1 String layout without optimisers

Where no optimisers are deployed, modules that are electrically connected as one string need to have the same orientation and tilt.

2.1.2 String layout with optimisers

The deployment of Tigo TS4-R-O optimisers allows modules in a single string to be installed as split-arrays with different azimuth and/or tilt angles. As a general guideline, the smaller array will be optimized when connected to the same string. The larger array or main array must consist of at least 6 panels (to reach the inverter’s start voltage). Examples of array configurations and the correct deployment of optimisers are shown below (with optimized modules shown in blue).

2.1.3 Shading

The benefit of optimisers in partially shaded arrays is insignificant.

• Optimizers are not used to mitigate shading!

For solarZero systems, in some instances, loss of performance due to shading is addressed by installing one additional module. solarcity will determine if this is a suitable solution on a case by case basis prior to the installation.



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2.1.4 Maximum string voltage

The maximum length of a single string is dictated by the string voltage, taking temperature coefficients and the local ambient temperatures into account. The maximum number of panels in a single string of poly-crystalline modules with a rated output at STC of less than or equal to 305 Watts, is thirteen (13). For mono-crystalline modules, this number is limited to 12 panels per string.

String inverter installation

2.2.1 Delta E5

The Delta E5 is a hybrid inverter with off-grid capability. It is used for systems with a peak output

between 1.7kWp and 6kWp.

For further details please refer to the Delta E5 datasheet in the installation manual.

DC Input

The inverter has 2 individual MPPT inputs and comes with 2 pairs of genuine MC4 connectors.

Model Delta E5

Convertible power 5500Wp

Max input voltage 600V

MPP voltage range 220V - 450V

Min DC start voltage >125V

Max DC input current 12A / 12A

AC Output

The inverter has an AC screw terminal block for connecting the AC cabling.

Model/ Operating Mode Delta E5/ Grid

connected Delta E5/ Standalone

Rated active power 5000W 3600VA

Max apparent power 5250VA 3600VA

Rated grid voltage 230V 230V

Max AC output current 24A 15.7A

Min MCB rating 32A (type C) 20A (type C)

2.2.2 Wall mounting

Mounting procedure

The inverter comes with a mounting bracket, which is used to fix the inverter to a suitable wall.

Please refer to the solarcity wall cladding guide for suitable wall claddings to mount the inverter on.

https://www.solarcity.co.nz/assets/installers/20-Delta/Delta-Hybrid-Inverter-Manual.pdf

https://www.solarcity.co.nz/assets/installers/19-Tech-Notes/TN1119-PV-BT-v3-Wall-cladding-guide.pdf



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1. Use the wall bracket as a template and mark the positions of the drill holes. Ensure the bracket is levelled.

2. If required, place anchors in the wall and secure the bracket with a suitable fastener.

3. Once the bracket is securely mounted to the wall, attach the inverter onto the bracket and secure it to the wall bracket using the supplied M4 screws.

Clearances

Heat must be able to dissipate from the inverter through the heatsink on the back. It is important to consider the recommended clearances. The below table is for a single inverter.

Direction Clearance

Above 200 mm

Below 200 mm

Side / Front 100 mm

The inverter should always be installed at a minimum height of 1200 mm from the ground.

Multiple inverters should only be installed side by side horizontally and never vertically stacked one above the other.

Suitable locations

Suitable locations are the south, southeast and southwest* facing walls of a building or the garage. Porches that offer sufficient shelter can also be suitable. The inverter must not be installed in a location, where it is exposed to direct sunlight.

*When installing on a southwest facing wall, the wall must not face more than 240° (120° West) from due north.



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Inverter wiring

2.3.1 DC wiring

All wiring must be installed and sized in accordance with the relevant requirements of AS/NZS 3000, AS/NZS 3008.1, AS/NZS 5033 and AS/NZS 4777.1.

All DC cabling and the associated earth bonding conductors should be bundled together to avoid induction loops. Only where possible, use the so-called “leapfrog wiring” method to avoid unnecessary cable loops and home runs.

Source: http://solarprofessional.com/sites/default/files/articles/images/1_SP7_3_pg12_QA_1-1.jpg

If the leapfrog or skip wiring method is impractical, the modules can be daisy chained.

Source: http://solarprofessional.com/sites/default/files/articles/images/1_SP7_3_pg12_QA_1-1.jpg

Any DC cabling must be adequately mechanically protected and must be run in HD solar conduit. Where it is exposed to direct sunlight, HD conduit, marked with the letter T, is to be used. For any internal cable runs (e.g. within wall cavities, under floors and within roof spaces), rigid HD solar conduit shall be used. The conduit must be labelled with PV or SOLAR at intervals not exceeding 2 meters. Refer to section 4.3 of AS/NZS 4777.1:2016. Use stainless steel saddles for all external conduit runs. Please also refer to the DC wiring schematic.

Wiring between the inverter and the DC isolator may be without conduit where the length of DC cable does not exceed 300mm.

The minimum cross section of any DC wiring is 4mm². All DC cables shall be multi-stranded, insulated and sheathed and PV1-F rated as per AS5033. The table below can be used as a guideline for maximum cable run lengths with respect to maintaining acceptable voltage drops.

Panels per string 6 7 8 9 10 11 12 13

Max. cable length 25 30 35 40 45 50 55 60

Genuine MC4 connectors must be used to connect the DC cables to the array output cable. A MC4 crimping tool shall be used to attach the stranded wire to the metal pin.

DC isolators

DC isolators must be installed adjacent to the inverter. The clearances for the inverter provided in section 5.2.4 do not apply for any disconnection equipment.

solarcity supplies a Kraus & Naimer DC isolator - KFD25 T204/NZ-P002 KL11V. It is important that the screw terminals of the DC isolator are not over tightened. A torque screwdriver shall be used to tighten the terminal screws with a torque of 1.25Nm. Ferrules must be used on the stripped wire ends.

http://solarprofessional.com/sites/default/files/articles/images/1_SP7_3_pg12_QA_1-1.jpg

http://solarprofessional.com/sites/default/files/articles/images/1_SP7_3_pg12_QA_1-1.jpg

https://www.solarcity.co.nz/assets/installers/20-Delta/PV-Electrical-Schematic-Delta-E5-BX-6.0-295-poly-DC-G400-32.20.1.0.pdf



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Remove the isolator from the enclosure prior to fixing the enclosure to the wall. Dust from drilling can damage the switch.

Please see the isolator datasheet for further details.

Equipotential Bonding

Equipotential bonding is required for all parts of the solar array. The cross section of the earth bonding conductor should be equal or greater than that of the DC cable conductor size. The earth cable must be continuous from the array to the earth bar in the switchboard the inverter is connected to. Run all conductors bundled in the same conduit.

solarcity policy is that the earth conductor must be bonded to every rail in each row or column of the array using the supplied proprietary earth lugs.

Roof Penetration

Subject to the roof type the PV array is installed on, an appropriate roof penetration kit must be used. Where an attic space is accessible for the cable run, roof penetrations shall be located under the solar panels.

Where cables pass through the roof penetration, they must be protected using rigid conduit!

Rooftop Isolator

A rooftop isolator is not required. Refer to section 4.4.1.6 of AS/NZS 5033:2014 for details. The output cabling of the array must be labelled as follows:

“The inverter DC isolator must be in ‘Off’ position before isolating the PV array”

All required Labels will be supplied. Please refer to section 8 for detailed information on labelling.

2.3.2 TS4-R-O optimiser installation

Where strings are split across two roofs with different orientations or roofs with different pitch, optimisers must be partially deployed in the string (see 2.1.2). solarcity will specify the design and optimiser deployment prior to the installation. Follow the below instructions to retrofit optimisers to the module.

The links can be swapped and moved to the top.

https://www.solarcity.co.nz/assets/installers/15-Switches/KFD25-T204-NZ-P002-KL11V-GB1.pdf



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1. Looking at the back of the panel, push the optimiser into the upper right corner at the backside of the module frame as depicted. Make sure the unit is pushed all the way in.

2. Connect the module leads to the short input leads of the TS4-R-O unit.

3. Connected the long output leads of the optimiser to the output leads of the next optimiser.

Secure any wiring loops and loose cables to the module frame or the mounting rails. All optimisers come with genuine MC4s and so do the modules. If you find non-genuine connectors on either the module or the optimisers, please contact solarcity immediately. The optimiser’s output leads have a length of 1000mm which is usually too short for leapfrog wiring. Please use standard daisy chain wiring for all optimised array sections.

2.3.3 PV DC connection to inverter

The inverter is equipped with 2 MPPT’s. The strings are connected to the inverters using genuine MC4 connectors. The MC4 terminals are located right next to the battery sunclix terminals and cannot be confused. Ensure all MC4 connectors are completely pushed in and secured.

2.3.4 AC wiring

The inverter is connected to the switchboard using double insulated, fine-stranded 5-core cable (4C+E). Circular double sheathed XLPE or TPS cable should be used to connect the inverter to the AC isolator. When installed outdoors the cable must be run in UV rated conduit, otherwise UV rated cable must be used. Standard TPS cable can be used for the cable run between switchboard and AC isolator. All cabling must be sized according to its current carrying capacity.



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If no AC isolator is required, use circular TPS all the way from the inverter to the switchboard. External AC cabling must be run in UV resistant HD conduit (with the Solar T labelling hidden since it is AC not DC). The minimum conductor size for fine stranded cabling is 6mm². The AC isolator must be installed adjacent to the inverter if the inverter is more than 3 meters away from the switchboard or it is out of line of sight. The AC isolator must have a current rating equal to or greater than the MCB current rating. To isolate both, grid and backup supply, a 2-pole isolator should be used.

2.3.5 Delta E5 AC plug

Delta use a 5 pole AC inverter connector with a common earth. 2 poles are for the grid side L1 and N and 2 poles are for the back-up side L1 and N. The inverter uses a single plug and cable to connect the grid and the back-up loads.

Note: A 2-pole AC isolator must be used to isolate grid-side and load side simultaneously.

The connectors on the plug are numbered and must be wired correctly. Always use the colour code outlined below.

• 1 to be connected to L1 (Grid side) - red

• 2 to be connected to L1 (Load side) - white

• 3 to be connected to N (Load side) - blue

• 4 to be connected to N (Grid side) - black

• 5 to be connected to ground – green/yellow

The plug can fit wires between 5mm² and 8mm². Fine stranded wire and ferrules are to be used. The recommended torque for the screw terminals is 0.7 Nm.

Strip all wires as illustrated to ensure correct installation of the AC connector.

Line up the largest notch on the plug with the largest protrusion on the inverter terminal to connect the plug. Rotate the top section of the plug clockwise until is tightened. Ensure the plug is properly secured.

2.3.6 Connecting back-up loads



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The Delta E5 Hybrid inverter’s back-up side is always live. During grid operation all loads connected to the back-up side of the inverters are supplied by grid power. If the inverter disconnects from the grid the back-up loads are supplied by PV/battery power.

The following loads should be connected to the back-up side of the inverter:

• Socket outlets that supply fridges, TV equipment and internet modems/routers.

• Light circuits

• carbonTRACK CT200i

Up to 3 house circuits can be connected to the back-up supply. Unless a circuit is directly wired to a fixed appliance, RCD protection is required for circuits fed through the inverter’s backup supply.

Although the carbonTRACK unit is to be connected to the back-up supply it does not require RCD protection (fixed appliance).

Regardless of whether the backup circuits physically remain in the existing switchboard or are connected through an external switchboard, the following switches are required:

• 1 32A main switch for backup supply (MCB or isolator)

• 1 carbonTRACK MCB

• 1 RCD

• 3 MCB’s, 1 for each backup circuit. (maximum of 3)

Examples of loads that should NOT be connected to the back-up supply:

• Electric oven supply, electric hot water supply, electric underfloor heating supply

• Any single loads that can exceed 3.5kW in normal operation.

Note: Disconnect L, N and PE of the existing circuit that is intended to be connected to backup completely and connect it to the backup supply. N and PE of the circuits connected to backup must now be terminated in the backup switch board. If the backup circuits remain in the existing switchboard they need to have a separate neutral and earth bar. However, a link between the existing and backup neutral bar is required.

For further details please also refer to the AC wiring schematic.

Battery installation

The following section describes the physical installation of the Delta BX6.0 battery.

2.4.1 Delta BX6.0

The Delta BX6.0 battery has a maximum storage capacity of 6kWh and can only be installed in conjunction with the Delta E5 hybrid inverter.

For further details please refer to the Delta BX6.0 datasheet in the installation manual.

Specification overview

Model Delta BX6.0

Capacity 6.0 kWh

Max charge current 30.0 A

Max discharge current 35.0 A

Nominal charge voltage 104.0 V

Operating Temperature -10 to 45 °C

https://www.solarcity.co.nz/assets/installers/20-Delta/PV-Electrical-Schematic-Delta-E5-BX-6.0-AC-G400-32.0.1.4-RGB.pdf

https://www.solarcity.co.nz/assets/installers/20-Delta/BX-6.0-manual.pdf



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2.4.2 Mechanical installation of BX6.0 battery

The Delta BX6.0 can be fixed to the floor or to a suitable wall, using the supplied wall mounting brackets. Due to its weight, the battery should stand on the ground when possible, regardless of whether it is fixed to the wall or floor. The wall bracket is especially useful in situation where the ground is not level. Please refer to our technote for battery locations for further details.

Important: The battery unit has a weight of 75 kg! Lifting, carrying or moving the unit always requires at least two persons. Do not attempt to lift or move the battery unit by yourself! If you have any concerns or questions about safe handling of the battery unit please contact solarcity.

Wall mounting

• If wall mounted, at least six M8 screws are required, three on each side. Attach the brackets to the battery pack using the supplied screws.

• When using this method on gip walls for example, the battery must be positioned between two studs to achieve sufficient support. This is of utmost importance in earthquake prone areas. Please refer to the here outlined dimensions of the battery bracket.

Floor mounting (preferred)

• If a solid level surface is available the battery can be ground mounted. This is the preferred fixing method for concrete floors. Four (4) concrete wedge anchors or sleeve anchor through bolts are required to fix the battery pack to the floor. The feet cannot be detached. It is recommended to use a ratchet as access below the battery pack is limited.

• Alternatively, two 400 x 400 mm concrete pavers can be used to create a solid and level surface. M8x40mm sleeve anchor through bolts with M8x20mm SS flat washers shall be used to secure the battery to the pavers.

https://www.solarcity.co.nz/assets/installers/19-Tech-Notes/TN1120-BAT-v2-Suitable-battery-locations.pdf



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Clearances

In most cases the battery will be located right beneath the inverter. The below minimum clearance spacing must be respected.

Direction Clearance

Above 100 mm

Front 100 mm

Side 100 mm

Suitable locations

Suitable locations are the south, southeast* and southwest* facing sides of a building or the garage. Porches that offer sufficient shelter can also be suitable.

The battery must not be installed in a location, where it is exposed to direct sunlight.

*When installing on a southwest facing wall, the wall must not face more than 240° (120° West) from north. On south-east facing walls, the wall must not face less than 90° east.

Please refer to our technote for battery locations for further details.

2.4.3 Electrical installation of BX6.0 battery

DC cable and connectors

It is recommended using a 6mm² - 10mm² twin DC cable for connecting the battery to the inverter.

Two pairs of sunclix connectors are supplied with the battery. You’ll find another pair supplied with the inverter as a spare. Please follow the instructions below to assemble the sunclix connectors. All cabling must be run in UV rated HD conduit.

There is no reverse polarity protection and it is essential that you test polarity before connecting the battery to the inverter.

Connect BT+ on the inverter to BT+ on the battery unit and Vice versa, connect BT- on the inverter to BT- on the battery unit.

A DC isolator must be used between inverter and battery.

Phoenix Contact sunclix connectors

The inverter uses Phoenix’s sunclix to connect the battery to the inverter. Three pairs (one spare) are shipped with the inverter and the battery. It is important to assemble the connectors correctly. Please take extra care not to damage these connectors in the process.

Be sure to maintain the correct polarity!




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The steps below explain how to assemble sunclix connectors. Ensure that the cable is de-energized before installing the connectors.

1. Strip approx. 18mm off the cable insulation Route the cable all the way into the DC connector.

2. Ensure that the stripped cable and the DC connector have the same polarity

3. If the stranded wires are visible in the chamber of the clamping bracket, the cable is positioned correctly. Press the clamping bracket down until it snaps into place. You should hear a click.

4. If the connector’s clamping bracket was locked prematurely (refer to step 3), it can be opened using a 3.0mm flat bladed screw driver

DC isolator

A suitably rated DC-isolator must be installed between battery and inverter. Please refer to the specifications outlined in 5.4.1.

solarcity supplies the battery DC isolator.

CAN bus connection

A communication cable must be connected between battery unit and inverter. To maintain the IP rating and ensure longevity of the installation, it is crucial that the supplied IP rated connector housing is used. The Cat 5e cable can be run in the same conduit as the battery DC cable.

While a pre-assembled Cat 5e or Cat 6 cable can be used, the RJ45 plugs must not have a boot. Only bootless RJ45 connectors will fit in the supplied plug connector.



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SYSTEM COMMISSIONING

Commissioning tests

It is important that all mandatory tests are done before commissioning the PV system. Please make yourself familiar with Appendix D of AS/NZS 5033:2014 and follow the instructions outlined in the standard.

Use a commissioning sheet to record the test results. You can find solarcity’s string inverter commissioning sheet here. A completed and signed copy of the commissioning sheet together with the CCESC must be provided to solarcity.

Inverter setup

The following steps describe the inverter start-up and commissioning procedure. Only proceed to inverter setup once all mandatory safety checks have been completed. Follow the steps below to commission the system:

1. Make sure PV DC and battery DC isolators are in OFF position. Turn on the AC supply and the integrated AC/DC switch and wait for the inverter to start up.

2. Select language, country (grid protection settings) and operation mode (self-consumption) and confirm. Press ENT to confirm or ESC to go back to the previous item.

3. Now turn on the DC supply – either PV or battery supply will work to start up the inverter. After some internal checks the inverter will start operating and show the home screen.

4. Once the inverter is operating normally, you must change the Date and Time. From the home screen, press ENT or ESC to enter the menu. Navigate to the menu item “General” press ENT and select “Date & Time”.

5. Under General Settings navigate to Baud Rate and change the value to 19200. This must be done prior to pairing the inverter with the carbonTRACK unit.

6. Change the SOC limit by navigating to the menu item “Function Setting”. Select SOC Limit and change the number to 2% by pressing the Up/Down button. Confirm by pressing ENT and return to the home screen by pressing ESC.

https://www.solarcity.co.nz/assets/installers/20-Delta/CTS1127-PV-BT-v1-Residential-Hybrid-Inverter-Commissioning-Sheet.pdf




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Please double check if country and mode of operation were set correctly. You can find this information under the menu item “Inverter Info”.

3.2.1 Grid protection settings

AS4777.2:2015 defines specific grid protection requirements for New Zealand. Depending on the DG approval and the standard the installation complies with, either AS/NZS 4777.1:2005 or AS/NZS 4777.1:2016 can be selected. The latter NZ specific anti islanding settings are abbreviated as “NZ” in the country selection menu.

solarcity refers to AS/NZS 4777.2:2015 in all its DG applications. It is thus important, that the PV/Battery installation complies with AS/NZS 4777.1:2016 and that the correct standard is referenced in your COC/ESC.

In network areas, where the grid protection requirements are different from the NZ standard settings, it might be required to connect a laptop, using Delta’s service software, to change the respective parameters. solarcity will issue a technote for each area where this the case.

3.2.2 Mode of Operation

The mode of operation must always be set to “self-consumption”.

Important: Do not change the “Time Settings” under the menu item “Function settings”. Changing the BT Charge Time and BT Discharge Time may lead to damage of the battery.

Connecting the inverter to the carbonTRACK hub

The inverter is equipped with an integrated Zigbee module and will be connected to the CT200i wirelessly. Only proceed to commissioning the carbonTRACK unit once the inverter is commissioned. During the commissioning procedure of the CT200i, the inverter can be added as a device.

Choose add device and wait for Carbontrack to confirm that the inverter is successfully paired. The Zigbee module is equipped with an LED/ button (don’t push it, otherwise connection is lost), which will stop flashing when the inverter is paired with the carbonTRACK hub.

Please refer to the latest solarZero controller installation SOP for further details.

3.3.1 Zigbee Module

You might be required to install the Zigbee module, which will be part of the inverter package content.

• Ensure the red switches on the comms module are both in on position.

• Carefully insert the cart into the comm/DRM port next to the A.C. connector.

• Line up the screws with the screw holes on the inverter

• Ensure none of the wires gets caught or pinched between the bracket and the inverter.

https://www.solarcity.co.nz/assets/installers/14-solarZero-controller/SOP1102-PV-v1.6-solarZero-Controller-Installation.pdf



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OVERVIEW OF CONNECTION TERMINALS AND SWITCHES

Inverter connection terminals and switches

• AC/DC Switch The AC/DC switch can be used to turn the inverter off. It does not

serve as a point of isolation.

• PV connector The inverter has 2 MPPT inputs. The pairs of genuine MC4

connector supplied with the inverter must be used to connect the

strings.

• BT connector The battery is connected to the BT connectors. Always use the

supplied sunclix connectors to connect the battery.

• CAN RJ45 The RJ45 socket is used for communication between inverter and

battery pack.

• Standalone button The standalone button can be used to start the inverter in off-grid

mode (if grid is unavailable) by pressing it for >1 second.

• Zigbee module The Zigbee module connects the inverter to the solarZero

controller.

• AC connector The AC connector combines grid side and load side connection

(back-up loads only). A 2-pole AC isolator is required for isolation.

• Manual Bypass switch The manual bypass switch can be used to re-enable grid supply

to all loads connected to the load/backup side in case of an

inverter failure.

• Grounding hole The grounding hole is usually not required for installations in NZ.

Zigbee module



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Battery connection terminals and switches

• BT- and BT+ Battery DC terminals

• CAN RJ45 connector The RJ45 socket is used for communication between inverter and

battery pack.

• Standalone switch The standalone button can be used to start the inverter in off-grid

mode by pressing it for >1 second.

LABELING AND TESTING

Labels

Please refer to the labelling technote TN1126PV-BT which can be found in our installer portal.

Commissioning tests

Please refer to the residential hybrid inverter commissioning sheet in our installer portal. We also highly recommend making yourself familiar with the solarcity inspection SOP.

https://www.solarcity.co.nz/assets/installers/19-Tech-Notes/TN1126-PV-BT-v1-Grid-tie-hybrid-inverter-with-battery-labelling-guide.pdf




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SHUTDOWN AND STARTUP PROCEDURES

Installer shutdown procedure

The following steps should be completed before the installer leaves site and after the system has been commissioned and confirmed as operational:

1. Switch OFF the AC/DC switch on the bottom of the inverter and wait for the display to turn off (this can take around 1 minute).

2. Switch the manual bypass switch to “BYPASS”.

3. Switch OFF and LOCK the PV DC isolator(s).

4. Switch OFF and LOCK the Battery DC isolator.

Please note that the inverter supply main switch, backup supply main switch and the inverter AC isolator (if one has been used) will all remain ON.

Inspector turn-on procedure

The following steps should be completed before inspection (please note that the inverter supply main switch at the switchboard will be ON):

1. Switch the manual bypass switch to “NORMAL”.

2. Switch ON the AC/DC switch and wait for the display to turn on (this can take around 20 seconds).

3. Switch ON the Battery DC isolator.

4. Switch ON the PV DC isolator(s).

5. Wait for the green “ON” LED to be solid green rather than flashing green (this can take around 1 minute 15 seconds).



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EXTERNAL LINKS AND REFERENCES Please see below a summary of all external documents that are linked to this SOP.

• Delta E5 installation manual: https://www.solarcity.co.nz/assets/installers/20-Delta/Delta-Hybrid-Inverter-Manual.pdf

• solarcity wall cladding guide: https://www.solarcity.co.nz/assets/installers/19-Tech-Notes/TN1119-PV-BT-v3-Wall-cladding-guide.pdf

• DC wiring schematic: https://www.solarcity.co.nz/assets/installers/20-Delta/PV-Electrical-Schematic-Delta-E5-BX-6.0-295-poly-DC-G400-32.20.1.0.pdf

• Kraus & Naimer PV DC isolator: https://www.solarcity.co.nz/assets/installers/15-Switches/KFD25-T204-NZ-P002-KL11V-GB1.pdf

• AC wiring schematic: https://www.solarcity.co.nz/assets/installers/20-Delta/PV-Electrical-Schematic-Delta-E5-BX-6.0-AC-G400-32.0.1.4-RGB.pdf

• Delta battery data sheet: https://www.solarcity.co.nz/assets/installers/20-Delta/BX-6.0-manual.pdf

• Battery locations technote: https://www.solarcity.co.nz/assets/installers/19-Tech-Notes/TN1120-BAT-v2-Suitable-battery-locations.pdf

• solarZero hub SOP: https://www.solarcity.co.nz/assets/installers/14-solarZero-controller/SOP1128-PV-v1-solarZero-Hub-Installation-For-Delta-Hybrid-Inverter.pdf

• Label kit technote: https://www.solarcity.co.nz/assets/installers/19-Tech-Notes/TN1126-PV-BT-v1-Grid-tie-hybrid-inverter-with-battery-labelling-guide.pdf

• Commissioning sheet: https://www.solarcity.co.nz/assets/installers/20-Delta/CTS1127-PV-BT-v1-Residential-Hybrid-Inverter-Commissioning-Sheet.pdf

• Inspection SOP: http://solarcity.co.nz/assets/installers/20-Delta/SOP1124-PV-BT-v1-SOP-Inspection-Delta-E5-BX-6-0.pdf















https://www.solarcity.co.nz/assets/installers/14-solarZero-controller/SOP1128-PV-v1-solarZero-Hub-Installation-For-Delta-Hybrid-Inverter.pdf

https://www.solarcity.co.nz/assets/installers/14-solarZero-controller/SOP1128-PV-v1-solarZero-Hub-Installation-For-Delta-Hybrid-Inverter.pdf





http://solarcity.co.nz/assets/installers/20-Delta/SOP1124-PV-BT-v1-SOP-Inspection-Delta-E5-BX-6-0.pdf

http://solarcity.co.nz/assets/installers/20-Delta/SOP1124-PV-BT-v1-SOP-Inspection-Delta-E5-BX-6-0.pdf

sop title: delta e5 and bx6.0 installation version ... · introduction ... connecting the inverter...

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