Myenergi zappi Series User manual

zappi
eco-smartEVcharge point
operation & installation
manual
MODELS:
ZAPPI-32A1P1T05
ZAPPI-32A1P1T08
ZAPPI-32A1P2T05
ZAPPI-32A1P2T08
myenergi.uk
Rev 2.0AU May 2019 - ENGLISH

Contents
Introduction ........................................................... 4
Safety .............................................................................. 4
Overview .......................................................................5
Operation ......................................................... 7
Controls & Indicators................................................................. 7
Display ..........................................................................8
Status Screens....................................................................... 10
Charging Modes .............................................................. 12
Manual Boost ................................................................. 13
SmartBoost................................................................... 14
BoostTimer................................................................... 15
Lock Function ....................................................................... 16
Menus............................................................. 17
Main Menu .................................................................... 17
Advanced Menu .............................................................. 19
Configuration ......................................................... 21
Settings ....................................................................... 21
Advanced Settings.................................................................. 21
Installation............................................................ 26
Mounting...................................................................... 26
Wiring......................................................................... 27
Supply Connection ................................................................. 29
CT Sensor Installation .............................................................. 30
Advanced Installation Options.................................................... 32
eSense Input (economy tariff) .................................................... 34
Fitting the Cover .................................................................... 35
Setup.......................................................................... 36
Troubleshooting ........................................................ 37
Faults ......................................................................... 37
Warranty............................................................38
Technical Specifications ............................................... 39

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operation and installation manual
Introduction
Introduction
Thankyouforchoosingzappi.Ofcourse,wethinkyouhavemadeanexcellentchoiceandaresureyouwillbeveryhappywith
the features, benefits and quality of this myenergi product.
Theseinstructionswillhelpyoutofamiliariseyourselfwiththezappi,byreadingtheinstructions,youwillbesuretogetthe
maximum benefit from this 'eco-smart' device.
Safety
Thedevicehasbeenmanufacturedinaccordancewiththestateoftheartandtherecognisedsafetystandards.However,
incorrect operationor misuse may result in:
Injury or death to the operator or third parties
Damage to the device and other property of the operator
Inefficient operation of the device
All persons involved in commissioning, maintaining and servicing the device must:
Be suitably qualified
Have knowledge of and experience in dealing with electrical installations
Read and follow these operating instructions carefully
Always disconnect the device from the supply before removing the cover
The device is not to be used by persons (including children) with reduced physical, sensory or mentalcapabilities, or lack of
experienceandknowledge,unlessthey havebeengivensupervisionor instructionconcerning use ofthe device by aperson
responsible for theirsafety.
Disposal
In accordance with European Directive 2002/96/EC on waste electrical and electronic equipment and its implementation in
national law, used electrical devices must be collected separately and recycled in an environmentally responsible manner.
Ensurethatyoureturnyouruseddevicetoyourdealeror obtaininformationregardingalocal,authorisedcollectionand
disposalsystem.FailuretocomplywiththisEUDirectivemayresultinanegativeimpactontheenvironment.
Copyright
Copyrightof theseoperatinginstructionsremainswiththemanufacturer.Textand images correspondtothetechnicallevelat
thetimeofgoingtopress.Wereservetherighttomakechanges.Thecontentoftheoperatinginstructionsshallnotgiverise
toanyclaimsonthepartofthepurchaser.Wearegratefulforanysuggestionsforimprovementandnoticesoferrorsinthe
operating instructions.

Introduction
Overview
Microgeneration systems such as Solar PV and small windturbines are at their most efficient when the generated energy is consumedon-siteratherthanexportingit
tothegrid.Thisiswhat wecall'self-consumption'.
zappi isaMode3chargingstation,compatiblewithall electric vehiclesthat complywithSAEJ1772,EN62196andEN61851 plug-in electric vehiclestandards.
zappi works likeany regular charging point but has special eco charging modes which will benefit homeowners with grid-tied microgenerationsystems,likewindorsolar
generation.TwospecialECOchargingmodesautomaticallyadjustchargingcurrent inresponsetoon-sitegenerationandhouseholdpowerconsumption.InFASTcharge
mode,zappioperateslikeanordinaryEV charging.
Agridcurrentsensor(supplied)simplyclipsaroundtheincomingsupplycable.Thissensorisusedtomonitorexcesspowerand whenusingthespecialECOchargemodes,
zappi automaticallyadjuststhechargerateinresponsetoavailablesurplus.
Feature Set
• AvailablewithType1 or Type2 connector
• 3 charging modes:ECO,ECO+ & FAST
• Optimises microgenerationself-consumption
• Works with solar PV or wind turbinesystems
• Economy tariff senseinput
• Programmable timerfunction
• Charge and eventlogging
• Remotecontroland monitoringadd-on option
• Pin-code lockfunction
• Tap operated displaybacklight
• Built-in RCDprotection
• Integral cableholster
• Suppliedwith clip-on gridcurrent sensor

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Operation
Operation
Controls & Indicators
Display GraphicalLCD display withLEDbacklight
• Backlight canbeactivatedbytappingtheunit
FrontCover The white front cover hidestheenclosurescrews
TetheredCharging Cable Thechargingcableis5mor8mandisfittedwithType1orType2plug
Control Buttons Fourtactilebuttonsusedtonavigatethemenusandaltersettings:
ChangechargingMode|Exitcurrentmenu
EnterMenu | Moveupamenuitem | Increasevalue
EnterMenu|Movedownamenu item |Decreasevalue
Boost | Selectitem | Confirmvalueandmovetonextsetting
IntegratedCableHolder Whennotinuse,thechargingcableshouldbewrappedaroundtheunit

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operation and installation manual
Operation
Display
Import/ExportPower Thepowerbeingeitherimportedorexportedfromortothegrid(kW).The
directionof thearrows indicate ifthe propertyiscurrentlyimportingpower(left)
or exporting power(right)
Thesizeofarrowsisproportiontothelevelofpower.Whenthepropertyis
neitherimportingorexportingpower,thefigurewillbe0.0kWandtherewillno
animatedarrows.Thepropertyisthensaidtobe'inbalance'
HouseLoadPower Thepower that thepropertyis currently usingin kW
It does not include any surplus power being sent to the heater(s)
)
StatusText Thecurrentstatusisdisplayedhere(seeStatusScreenspage10)
Generation Power Thepower being generatedat this timein kW
Lock Icon Operation lock isactive
Date& Time The current dateand time
Mode Icons Theseiconsindicatethattheimportlimitingisactive(house)orthee-Senseinput
is live(e)
zappi Icon Thiszappi unit.Iftherearewavylinesabovetheicon,theunitisthermally
limiting(theoutputpowerwill betemporarilyreduced)
Charge Mode ShowstheselectedChargingMode;FAST,ECO or ECO+(seeChargingModespage
12)
Charge Delivered to EV TheaccumulatedchargeenergythathasbeensenttoEVinthischargesession
Current Charging Power WhentheEVischarging,arrowswillshowherealongwiththechargingpowerin
kW
Green Level of last charge Thisispercentageof'Green'energyforthelastchargesession,thisisshownat
the end of a charge or when the EV is unplugged
12
11
10
12
10
11

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Operation
Display Icons Key
House Consumption –Not Importing Charge Mode = FAST
House Consumption –Importing Charge Mode = ECO
Solar Generation Power Charge Mode = ECO+
WindGenerationPower zappi Device –Normal
Grid Power –Import / Export zappi Device –Too Warm (output limited)
Power Flow Direction –Small Amount Import Power Limiting Active
Power Flow Direction –Medium Amount Economy Tariff Electricity Available
PowerFlowDirection–Large Amount Current Charging Power
WaitingForSurplusPower Energy sent to EV for this charging
DSR Mode Active Warning –refer to text on screen

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operation and installation manual
Operation
Status Screens
EV Disconnected
Waiting for Surplus...
Waiting for EV...
Charge Delayed
The EV is not connected to zappi
Inthisexample thelastchargingsessiondelivered 20.8kWh ofenergyto
theEVand80%ofthatenergycamefromthesolarpanels.
zappi is waiting for sufficient surplus power fromthemicrogeneration
system.Thisscreenwill beshowninECO+modeasit'sonlyinthismode
thatchargingwillstopifthereisnot enoughsurpluspower.
Thehouseinthecentreisstraight-facedasgridelectricityisbeingusedby
the house(0.9kW is this example).
zappi is waiting for the EV to respond; the EV is not ready to accept
charge.
Paused...
Charging
The charging session has been delayed by the EV because a schedule
charge has been set in the vehicle.
zappi is paused for a few seconds in order to limit the start/stop
frequency during ECO+ mode charging.
The Start/Stop Delay can be changed in the Charge
Settings/ECO+ Settings menu option.
The EV is charging.
InthisexamplethecarischarginginECO+modeat1.6kW,thereisno
importorexportfromthegrid(0.0kW) andtheEVbatteryhascharged
by 8.9kWh sincethe car started.

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Operation
Charge Complete
Restart...
The EV is fully charged.
The charge energy used during the last charge is displayed at the bottom
right (20.0kWh in this case) and the 'green contribution' is also shown
(40% in thisexample).
Zappi isdoingarestartsequence.ThismayhappenwithsomeEVsthat
needtobe'woken-up'tostartchargingafterapausingcharge.Charge
should start immediately afterwards, otherwise the “Charge Delayed”
message willappear.

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operation and installation manual
Operation
Charging Modes
zappi hasthreedifferentchargingmodes whichcan beselectedsimply by pressingthe buttonwhenthemainscreenis
showing.Thechargemodecan bechangedbeforeor duringa charge.
Regardlessof thechargemodeused,allofthesurpluselectricityisusedbutzappi's specialecochargemodes,limitthe
amount of gridelectricused.Belowis explanationof eachofthethreechargingmodes.
FAST
Charges at the fastest rate.
FastModewillchargetheEVatthefastestrateandwillimportgridelectricityifthereis
insufficient surplus generatedpower.
TheactualchargerateisdependantontheEV'sonboardchargerandthegridsupplyvoltage.
Typically,vehicleshaveeithera3.3kWor6.6kWcharger.Theactualpowercanbealittle
different ifthegridsupplyvoltage is not exactly 230V.
zappi will deliver up to 7kW provided the supply connection is suitably rated.
ECO
Adjusts the charge rate to limit the use of grid electricity.
Thechargerateiscontinuouslyadjusted,inresponsetochangesingenerationorpower
consumptionelsewhereinthehome,therebyminimisingtheuseofgridpower.
Charging will continue until the vehicle is fully charged, using available surplus power.
However,ifatanytime,theavailablesurpluspowerfallsbelow1.4kW,theshortfallwillbe
drawn from thegrid.
Note: The EV charging standard does not support charging below 1.4kW.
ECO+
Adjusts the charge rate tolimit the use of grid electricity and will pause the
charge if there is too much grid electricity being used.
Thechargerateiscontinuouslyadjusted,inresponsetochangesingenerationorpower
consumptionelsewhereinthehome,therebyminimisingtheuseofgridpower.
Chargingwillpauseifthereistoomuchimportedpower,continuingonlywhenthereisenough
surplus poweravailable.
ThesurpluspowerthresholdatwhichthechargewillstartorstopcanbesetintheECO+
Settings option, which is found in the ChargeSettings menu.
ItispossibletochargetheEVusingonlysurplusrenewablepower,providingthereissufficient
surplus power todo so.Todothis,setthe Min Green Level to 100%.
TheMin Green Levelistheminimumlevelforthecontributionofgreenenergyattheend
ofthecharge.Theactualgreencontributionforthecharge,isdisplayedwhenthechargeis
complete or the EV is disconnected. For example: With Min Green Level set to 50%,
chargingwillbepausedif700Wofpowerisbeingimportedfromthegridandwillresume
chargingwhen thereis 700Wof power beingexported.
Note: The EV charging standard does not support charging below 1.4kW.

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Operation
Manual Boost
The Manual Boostfunctioncan onlybeused whencharginginECOor ECO+ mode.Whenboosting,thechargerateissetto
maximum(justlikeFASTmode),untilasetamountofenergyhasbeenstoredintheEV'sbattery.Afterwhich, zappi will revert
back toECOor ECO+mode.
Thisfunctionisusefulifyouarrivehomewithanalmostflatbatteryandwouldliketochargethevehicleimmediatelytoensure
thereis enough charge for ashort trip if needed.
The amount of energy (kWh s) the boost uses can be changed in the Charge Settings/Boost menu.
WheninECOorECO+mode,eachpressofthe buttonwill cyclethroughtheboostoptionsasillustratedbelow:
Activating Boost
1. WhencharginginECOorECO+mode,press untilBOOST isshown.
2. Theboostwillstartafteracoupleofsecondsandthedisplaywillshowtheremainingboostenergy.
Theboostdurationcanbealtered(whenaboostisnotinprogress)intheCharge Settings/Manual Boostmenu
option.
Cancelling Boost
Theboostcanbecancelledbypressing until Cancel Boost isshown.

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operation and installation manual
Operation
Smart Boost
TheSmartBoostfunctionwillchargetheEVwithaminimumkWhfigurebyasettime.SmartBoostisavailableonlyinECOand
ECO+ modes.
The Smart Boost function does not bring the batteryto acertain stateof charge.The target kWh is onlythe
energy added during the charging session.
WheninECOorECO+mode,eachpressofthe buttonwill cyclethroughtheboostoptionsasillustratedbelow:
Example: It'sasunnySundayandyouwishtoensurethereisenoughchargeintheEVtogettoworkinthemorning(e.g.
15kWh),butinthemeantime,youwanttousethesurplusenergyfromthePVsystemtochargethecar,soyouchoosetouse
ECO+mode.Atsunsettherewasonly10kWhofchargeaccumulated.However,becauseyouactivated Smart Boost,andset
the time you needed to leave for work, zappi automatically boosted the charge in the night to top up the battery to the
required 15kWh by7am.
Activating Smart Boost
1. WhencharginginECOorECO+mode,press untilSMART BOOST isshown.
2. TheSMART BOOSTiconwillshowincludingthesetenergy
amountinkWhsandthetargettime,(17kWhsand7am
respectively,inthisexamplescreenshot).
3. zappiwillthentesttheEVforafewseconds,todetermine
the maximum chargerate.
4. Theboostwillstartatthelatestpossibletimetoachievethesetenergyamount,ifthecurrentchargesession
hasalreadyaccumulatedenoughenergy,theboostwillnotberequiredandsowillnotoperate.
TherequiredenergyandtargettimecanbealteredonlywhenSmartBoostisnotactive.Thesessettingsareinthe
Charge Settings/Smart Boost menu option.

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Operation
Boost Timer
WhenusingECOorECO+chargemodes,zappi canbeprogrammedto'boost'thecurrentchargeatcertaintimes.When
boosting,the charge rateis set to maximum(just likeFAST mode), regardlessof theamountof availablesurplus power. This
means that powermaybe drawnfrom themains grid supply during boost times.
• Therearefoureditabletimeslotswhichcanbe settooperateforcertaindaysoftheweek.
• Settingthedurationto0h00 will makethe boost inactive.
Programming Boost Times
1. From the main screen, press or to enter MainMenu
2. Select Boost Timer from within the Charge Settings menu. The
BOOST TIMER screen is then shown.
3. Theboostcannowbeedited:Use or buttonstohighlightthe
timeslotyouwishtochange.Thescreenbelowshowsthestarthour
being edited:
4. Alterthestarthourwiththe or buttonsandthenpress to
move tominutes.
5. Editthedurationinthesamewayandthenpress againtoeditthe
daysoftheweekyouwanttheboosttobeactivefor;eachdayofthe
weekandbytoggled on/off with or buttons, press togoto
the next day.Pressing onthelastday(Sunday)willconfirmthe
boosttimeslotandwholelinewill behighlightedagain.
6. Press to exit the BOOST TIMERscreen.
Economy Tariff Boosting
Boosting only when economy rate electricity is available can be achieved in one of three ways:
1. By setting the boost timer to coincide with the economy tariff times. This option should be used only if the
electricitymeter is adual-rate meter (modern meters usually are).
2. Boost only atsettimesANDif economy rate electric is available.
3. Automaticallyboostwhenevertheeconomytariffrateelectricityisavailable,regardlessofboosttimes*
*Options 2 and 3 are available only when using the eSense input.
For option 1, the eSense Input in the Advanced menu should be set to
Boost Timer Enable.
WiththeBoost Timer Enablefunctionset, theBOOST TIMERscreenwill
includeanextracolumn(seescreenshot).Theecanbetoggledon/off,ifeis
present,theboostwill activateonly whenthe boost times arevalid andthe
economy rate tariff is available.
Alternatively the eSenseinput can be usedto active the boost whenever the economy tariff rateelectricity is available,
regardlessof boosttimes (option2). Todothis, theeSense Input optionintheAdvancedmenushouldbe settoBoost.
When using this option, the Boost Timer is notneeded.
Boost Time Conflicts
If one or more boost times conflict, the boost will follow the latest time or longest duration.

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operation and installation manual
Operation
Lock Function
zappi canbelockedfromunauthorisedoperation.TheLockFunction requiresapin numbertobe enteredbeforetheunitcan
beoperated.ThelockcanbesettobeactiveonlywhentheEVispluggedinoronlywhenunplugged,itcanalsobesettobe
always active.
The settings for the Lock Function can be found in the Other Settings/Lock Function menu option.
Lock Function Setting Description
EV plugged
TheLockFunctionis activewhen theEV isplugged in, preventingtamperingwiththe
chargesessionor changing any settings
EV unplugged
TheLockFunctionisactivewhentheEVisdisconnected,preventingunauthorisedcharging
Timeout
The time before the Lock Function automatically reactivates after being unlocked
Lock Code
This is the current lock code and is five digits from (1 to 4), it can be changed here
Auto Hide
If set, this will hide the main display of the zappi to keep the power readings private

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Menus
Menus
Main Menu
Main Menu Options Description
Charge Log…
Today…
Log of charge sessions
Yesterday…
Week…
Month…
Year…
Total…
Event Log…
Today…
Log of events
Yesterday…
Week…
Custom Date…
Readings…
READINGS 1/4
Status:
Current status of the unit
Exporting/Importing:
Powerbeingimportedorexported,fromortothegrid
respectively
Charge Power:
Power level in Watts being supplied to the EV
Pilot(PWM):
Control Pilot PWM
Charge Current:
AC current supplied to the EV
Unit Temp:
Internal temperature of the zappi unit
READINGS 2/4
Voltage:
Supply voltage to the unit
Voltage Max:
Maximum supply voltage since switch-on
Voltage Min:
Minimum supply voltage since switch-on
Frequency:
Grid frequency
Exporting/Importing:
Powerbeingimportedorexported,fromortothegrid
respectively
READINGS 3/4
Exporting/Importing:
Powerbeingimportedorexported,fromortothegrid
respectively
Generation:
Power from the generator (if available)
Consumption:
Power consumed by the house (if available)
Diverting:
Total diverted power (inc. all devices)
Charge Power:
Current power being supplied to the EV
Charge Energy:
EnergysuppliedtoEVduringcurrentchargesession
Charge Time:
Duration of current charge session
Information…
INFORMATION 1/2
Status:
Status of the unit
Serial No:
Serial number of the unit
Firmware:
Firmware version installed in the unit
Assembled:
Factory assembly date
Cal Date:
Calibration changed date
Power Fail:
Time and date of last supply failure
INFORMATION 2/2
Grid Sensor:
Grid current sensor source
Signal Quality:
RF signal reception quality
Last Fault:
Last recorded fault code
Fault Date:
Date and time of last recorded fault code
INFORMATION 3/3
Network ID:
Network information for this device when linked to
other devices usingRFnetwork (EU Models
only)
Device Address:

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operation and installation manual
Menus
Main Menu Options Description
Master Address:
(Only shows if connected to other devices)
Channel:
EUI:
Charge
Settings…
ECO+ Settings…
Min Green Level:
ECO+charge modesettings. See Charging Modes page
12
Start/Stop Delay:
Manual Boost…
Manual Boost settings. See Manual Boost page 13
Smart Boost…
Smart Boost settings. See Smart Boost page 14
Boost Timer…
Programmable boost times. See Boost Timer page 15
Other Settings…
Time & Date…
Time:
Set current time in 24 hour format
Date:
Set date in Format (see below)
Format:
Sets the date format
Auto DST:
Automatic Daylight Saving Time adjustment
DST Zone:
Set zone for Daylight Saving Time
Display &
Sound…
Language…
Set language for the main screen and menus
Icons…
Generation:
Generation icon can be sun or wind
Monitoring:
Iftheis ongeneration on-site thengeneration
monitoringcanbeswitched off
Backlight…
Setthedurationthedisplaybacklightremainsonafter
a buttonpress
Contrast…
Set the display contrast
Set Buzzer:
SwitchesONorOFFthebuzzerforbuttonpressesand
mode changes
Lock Function…
EV plugged:
Lock is active only when EV is plugged in
EV unplugged:
Lock is active only when EV is unplugged
Timeout:
Lengthoftimeforthelocktoreactiveafterunlocking
Lock Code:
The lock code can be changed here
Auto Hide:
Hide the main screen when zappi is locked
Advanced…
Advanced menu and settings (passcode protected)

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Menus
Advanced Menu
Advanced Menu Options Description
Supply Grid…
Phase:
Setthesupplyphasetouseforthisdevice–see
Advanced Settings page 21 for more information
Device Limit:
Setthe maximumavailable supplycurrentto bedrawn
bythezappi –seeAdvancedSettingspage21formore
information
Export Margin:
Minimumlevelofexportpowerwhichismaintained
whenzappi isdivertingsurpluspower–seeAdvanced
Settingspage 21for more information
Grid Limit:
Maximum grid importpowerlimit. Whencharging, the
chargepowerisreducedtokeepimportbelowthis
level.Thisalsoapplieswhenboosting–seeAdvanced
Settingspage 21for more information
Battery:
Setsthemodeformanagingpower whenabattery
systemispresentintheinstallation.SeeBattery
StorageSystems(page32)formoreinformation.
Net Phases:
WhensettoONwillnettheimportsandexports across
phases allowingsurplus power fromone phase tobe
usedonadifferentphase.–seeAdvancedSettings
(page 21) for more information.
CT Config…
CTINT:
InternalCT,usedtoconfigureagrouplimit.SeeLoad
Balancing/CurrentLimiting(page32)fordetails.
CT1:
Set the function of CT1 input
See CT Config (page 22) for more details.
CT2:
Set the function of CT2 input
See CT Config (page 22) for more details.
eSense Input…
Disabled
eSense input is disabled
Boost
IftheeSenseinputislive,zappi willboostthecharge–
seeeSenseInput page 23
Boost Timer Enable
zappi willboostthechargeifeSenseisliveANDthe
boost timer issettooperate atthattime.
see eSense Input page 23
Compatibility…
PF Responsive:
zappi will adapt toEV's with poor power factor (e.g.
Renault Zoe).
Min PWM:
Control Pilot PWM minimum limit
Power Factor:
When PF Responsive is ON, the measured power factor
must be better than this set value to enable lower
charging current set by Min PWM
End Charge Delay:
ChargeCompletestatusisdelayedbythistimetoallow
accesstothevehiclewithoutstartinganewcharge
session
Infinite PWM:
Keepszappi readytorestartchargeafterchargeis
complete–thisisneededonsomeEV'swhentheuser
wantstopreheatthevehicleinmorning
Menu Passcode…
The code required to access the Advanced menu

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operation and installation manual
Menus
Advanced Menu Options Description
System…
Restore Settings…
Erase Config
Restore the configuration to factory default
Erase Data
Clear all data from memory
Erase ALL
Restoreconfigurationtofactorydefaultanderaseall
data
Confirm
Confirm restore options and re-boot device
Download Firmware
Downloads latest firmware from hub
Bootloader
Enter Bootloader mode

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Configuration
Configuration
Settings
AllsettingsaredescribedintheMainMenusection,however,themorecommonlyalteredsettingsaredescribedinmoredetail
below.
Time & Date
The date and time are used for the Boost Timer and the savings calculations and therefore should be set correctly.
Intheeventofapower-cut,zappi willstillkeeptrackofthetimeanddateforafewdays,sowhenpowerisrestoredtheclock
will not need tobe reset.
Time is always in 24-hour format but the date format can be changed.
zappi willautomaticallyadjusttheclockforDaylightSavingsTime(DST)aslongasAuto DSTisenabledandthecorrecttime
zone isselected.
Icons
The heatericons shownonthe mainscreencanbeindividually setforboth heater outputs. This gives aninstallation specific,
graphicalrepresentationwhichheateris active. Forexample;Heater1 couldbea hot water cylinderandHeater2 could bea
radiator.This function can be accessed via the Settings/Display/Icons menu.
Aswellasbeingabletocustomisetheheatericons,it'salsopossibletochangethegenerationtypefromsolartowind.
Advanced Settings
The Advanced Settings menu is passcode protected and only provided to installers.
Supply Grid
– Device Limit
Setsthemaximumcurrentthatthezappi willdraw(includingwhenboostingandFASTmode).Thisisusefulifthesupply
current is limited, likea 16A rather than 32A.
Supply Grid – Grid Limit
Sets the limit that can be drawn from the grid connection (i.e. the maximum import current or the main fuse rating).
Example:A property mayhave agridsupplylimit of only65A,severalappliancesareon andthe propertyisconsuming12kW
(52A)byotherappliancesandtheuserwantstochargeinFASTmode.WithouttheGrid Limit set,thetotalconsumption
would exceed the allowed import current. However, with a Grid Limit settingof 60A, zappi would temporarily limit the
chargingcurrentto8A(about1.8kW)andthemaximumallowedimportcurrentwouldnotbeexceeded.
Supply Grid – Battery
IfthepropertyhasastaticACbatterysystem installed, it's possibletogetthezappi towork in harmony withthesystem,
provided a CT has been installedtomonitorthe battery inverter.
See Battery Storage Systems (page 32) for more information about battery storage systems.
The table below details the different settings for working with an AC coupled battery storage system: