Zappi Glo Installation Manual

Zappi GLO EV Charger Installation Guide

The Zappi GLO is an advanced EV Charge Point designed by myenergi that can be used in conjunction with Solar PV or other microgeneration systems to utilize surplus generation and prevent exporting it back to the grid. Users can choose whether they want zappi to charge with 100% green energy or a mixture of green and grid power. The zappi will also work without microgeneration connected and will operate as a normal charger using 100% grid energy.

Key Features

  • Compatible with Solar PV and microgeneration systems
  • Flexible charging modes: 100% green energy or mixed green/grid
  • Can operate as a standard charger without microgeneration
  • Smart charge point compliant with UK regulations
  • Dynamic load balancing capability

Step-by-Step Installation Process

1Unpack and Remove Fascia

Remove zappi from packaging. Press 2X fascia clips inwards from one side, unhook the other, and pull fascia forward.

Zappi unit showing fascia clip locations

2Remove Front Cover Assembly

Loosen 6X cover screws and remove the front cover assembly from the back box.

Important: At this stage, the PCB is exposed and vulnerable. Handle with care and place it safely aside to prevent damage, dust, and exposure.

Cover screw locations and PCB assembly

3Mark Mounting Holes

Use the backplate against the mounting surface to mark all the mounting hole locations and then drill mounting holes.

Backplate mounting template with hole locations

4Drill Cable Entry Holes

Drill hole (X) for appropriately rated gland. Fit supply gland in accordance with gland manufacturer instructions.

Cable Entry Options:

  • Bottom Entry:
    • (A) ≤ Ø 20mm
    • (B) ≤ Ø 25mm
    • (C) ≤ Ø 25mm
  • Rear Entry:
    • (A) ≤ Ø 20mm
    • (B) ≤ Ø 25mm
    • (C) ≤ Ø 25mm

Note: Consider drilling CT gland entry at this stage if required.

Diagram showing bottom and rear entry cable gland locations

5Secure Unit to Wall

Secure the zappi to the structure using appropriate fixings, ensuring that the provided sealing washers (A) are used with all fixings (B) to maintain the IP rating.

Mounting Tips: Ensure suitable fixings are selected for your wall or surface type to secure the device properly.

Wall mounting with sealing washers detail

6Connect Supply Cable

Ensure that the supply cable meets the requirements of the local wiring regulations.

  • Strip cable length of 12mm
  • Torque 1.2 to 1.5Nm on each screw

Cable and Gland Requirements

The cross sectional area of the mains supply cable used should be between 4mm² and 10mm². The gland size should be a minimum of 16mm and a maximum of 25mm. Generally, a weatherproof gland can be used. SWA CW outdoor glands may be used for armoured cable.

Installer Responsibility: The size of cable and gland used is the responsibility of the installer and should be determined on an install-by-install basis dependent upon install specifics.

Cable termination diagram showing correct connection points

7Install Current Transformers (CTs)

Fit CT(s) to live conductors as necessary, with arrow marked (I) in direction of the consumer unit.

CT Golden Rules - MUST BE FOLLOWED

  • One CT must be set to GRID
  • There must be only ONE GRID CT
  • If the GRID CT is connected to a harvi, make sure that you have turned off the hardwired CT
  • Arrow pointing in direction of import (e.g. towards consumer unit if on Live cable)
CT installation diagram showing correct orientation with arrow direction

8Connect CT Cables

Inside the zappi, the PCB has removable CT connection plugs (2 pin). These accept the CT Cable (RED / BLACK).

  • Terminate the CT cable(s)
  • Route to one of the glands defined in step 4
  • Leave some excess length to allow easy reassembly of zappi
PCB showing CT1 and CT2 connection points with RED/BLACK terminals

9Refit Front Cover

Refit the front cover and evenly torque 6X cover screws at 1.2Nm.

IP Rating Maintenance: To maintain the IP rating of the unit, ensure the grommets and plugs provided are fitted. Ensure the cover O-ring is seated correctly and that all cables are fitted with an appropriate gland.

10Refit Enclosure Assembly

Refit the enclosure assembly ensuring clips on both sides make a positive fit to the back box.

11Testing and Commissioning

Carry out all relevant tests and inspections in accordance with local regulations, before applying power.

Commissioning Checklist

Scan the QR code to download the installer assistant app and follow the steps to commission the zappi. Before leaving the site:

  • Follow all steps outlined within the installer app including but not limited to: WiFi, Pairing (if applicable), Device limit, Import limit, Export Margin, G100 commissioning
  • Verify that the Electric Vehicle is charging. If the vehicle is not available, the installer should use an emulator to ensure all functionality tests are successfully passed
  • If you have access to the customer app, ensure the Grid Power reading is as expected, with power flow displaying in the correct direction
  • Check that zappi is reading power correctly via installer app readings screen

G100 Compliance

zappi supports the Customer Import and Export Limitation Scheme (CLS), in accordance with G100 issue 2. Where G100 is required as part of an installation, then the installer must adhere to the G100 Commissioning Guidance document which can be located at: support.myenergi.com/hc/en-gb

Once the CLS is setup correctly, the master device within the myenergi eco-system will monitor the maximum import and export, and if necessary, instruct other devices to increase or decrease import or export if these maximum thresholds are ever exceeded.

LED Status Lights

The Zappi GLO uses multicolour LED lights to communicate its status. Understanding these indicators is essential for operation and troubleshooting.

LED Light Patterns

  • Solid LED Light = Idle
  • Flashing LED Light = Action Required (ON > OFF > ON > OFF)
  • Breathing LED Light = Waiting (no action required) (Slowly ON > Slowly OFF)

Status Indicators

Breathe Blue - Charging / Energy Flowing to EV
Flashing Blue - Bluetooth Connected & Buzz
Solid Blue - Charging Stopped
Breathe Yellow - Waiting On Surplus or Waiting For Schedule or Smart Charge Delay
Flashing Green - Waiting for Authorisation
Solid Green - Ready / Available
Flashing Red - Fault – Check app / Unrecognised RFID
Solid Red - Fault - Wait
Flashing White - Start / Up Initialisation or Firmware Update or RFID Tap & Buzz
Breathe White - Commissioned without RFID (access key) in memory
Solid White - Uncommissioned with RFID (access key) in memory

Note: For a detailed explanation of LED light statuses and fault indicators, please refer to the user manual.

Technical Specifications

Mechanical Specification

Specification Details
Mounting Location Indoor or outdoor (Permanent mounting)
Enclosure Dimensions 350 x 170 x 160mm
Weight 4.1kg
Protection Degree IP65
Enclosure Material Polycarbonate
Operating Temperature -25°C to +40°C (Current derates at 50°C)
Impact Resistance IK10
Tamper Detection Microswitch

Electrical Specification

Specification Details
Rated Power 7kW
Rated Supply Voltage 230V AC -16/+10%
Supply Frequency 50Hz
Rated Current 32A max.
Standby Power Consumption 3W
Integral Protection 6mA DC Residual current protection. RDC-DD tripping characteristics in accordance with EN 62955
Supply Cable Size Up to 6mm² (flexible), Up to 10mm² (solid)
Supply Termination Type Screw

Performance Specification

Specification Details
Charging Mode Mode 3 (IEC 61851-1 Compliant Communication Protocol)
Charging Current 6A to 32A (Variable)
Dynamic Load Balancing Optional feature that regulates the current drawn from the power supply or grid, helping to prevent overload
Connector Type Type 2 (EN 62196-1, EN 62196-2) tethered cable (6.5m)
Metering Accuracy Load and external CTs designed in accordance with Class B (1%) of EN 50470
• Load: 0.25 - 5(32)A
• Ext CTs: 0.25 - 5(100)A
LED Illumination Multicolour LED, changing according to charge status

Connectivity Specification

Specification Details
Wireless Interface 868MHz (Radio proprietary protocol)
WiFi Connectivity 2.4GHz 802.11 b/g/n connection up to 150 Mbps
Bluetooth Connectivity Bluetooth Low Energy (BLE) v4.2
NFC/RFID Card reader: 13.56MHz ISO/IEC 14443 (Mifare Classic). RFID card supplied.
Grid Current Sensor 100A max. primary current, 16mm max. outer cable diameter. Supports up to 2x external CTs.
Cable Entry Supports up to 25mm dia. entries
Sound Buzzer

Safety Requirements

⚠️ Critical Safety Information

Read all safety instructions before installation. Failure to install and operate the unit in accordance with these instructions may cause inefficient operation, damage to the unit and invalidate the manufacturer's warranty, or result in injury or death.

Installer Requirements

Any persons involved in commissioning, maintaining and servicing this device must:

  • Be suitably qualified
  • Have knowledge and experience in dealing with electrical installations

Installation Environment Requirements

  • Do not install or operate the device in potentially explosive atmospheres or areas containing highly flammable materials or gases
  • Only operate this device in an ambient temperature between -25°C to +40°C
  • This device is intended for a fixed location with a permanent AC supply
  • This device may be installed indoors or outdoors and shall be mounted in the vertical orientation only to a flat wall or surface

Electrical Safety Requirements

  • The device must be earthed through a permanent earth conductor, correctly installed and reliably connected
  • The supply final circuit should be protected by an overcurrent device sized to 120% of the Design Current and in accordance with local regulation requirements
  • zappi incorporates 6mA DC Residual current protection. RDC-DD tripping characteristics in accordance with EN 62955
  • Local regulations may require 30mA Type-A RCD protection to be installed upstream
  • Installation shall be ≤ 2000m above sea level
  • The supply for single-phase devices shall have a voltage of 230V AC -16/+10%
  • The cross sectional area of the supply conductors shall be between 4mm² and 10mm²

Operational Safety

  • Always disconnect the device from the supply before removing the cover
  • Do not insert foreign objects into any part of the zappi or cable and connectors
  • Use of cable conversion adapters or cord extensions with this product are not permitted
  • Never spray or submerge the zappi with water
  • Do not rest heavy objects on top of this device
  • Stop using the device if it is found to be defective, or if any part is cracked, broken or damaged
  • Do not attempt to disassemble, tamper, modify or repair the device, as it has no user serviceable parts