SyncEV BG EVWC2T7G User manual

Wall Charger 2
Installation
Guide
Contents
Introduction / Box contents
Safety information
Installation & testing
Troubleshooting
Commercial Installation & Commissioning
Domestic Commissioning
Stage 1 (Installer app)
Domestic Commissioning
Stage 2 (User app setup)
Technical
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7.4kW TETHERED SINGLE PHASE :
EVWC2T7G (7.4KW / WI-FI / LAN)
EVWC2T7GG (7.4KW / WI-FI / LAN / 4G)
syncev.co.uk
EVWC2T7G EVWC2T7GG V2 0823 GJW

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Introduction
Box contents
Tools required
This guide is intended for use by
competent electrical installers to
explain basic requirements and
options to be considered when
installing a BG SyncEV charger.
The unit is designed for installations
inside or outside, the advanced
safety technology we have built
into the unit ensures its safe usage.
This guide provides information to
assist when installing the EVWC2Sx
chargers and should not be used
with other EV chargers.
Hex bit holder, PZ2 screwdriver, suitable drill bit
and fixings
• EV charger with 7.5m tethered cable and
Type 2 charging gun
• Decorative fascia
• Installation template & quick start guide
• Accessories pack containing:
»Power connector
»Cord grip and screws
»M25 gland
»25mm blind grommet
»Bonded sealing washers
»Assembly screws
»Anti-tamper bit
»x1 CT clamp
(EVA120CT1)
»x1 CT clamp connector
3
WARRANTY
year

Safety information
Warning: The supplied BG SyncEV charger
is manufactured to be safe without risk
provide they are installed correctly, used, and
maintained in accordance with the manufacturers
recommendations and installed by a competent
electrical installer in accordance with national
and local regulations and legislation applicable
at the time of installation, e.g. BS7671:2018
amendment 2.
The EV Charger is suitable for use with a single
phase (for up-to 7.4kW charging) 220-240V
Nominal AC supply.
The supply should run from a dedicated 40A
circuit breaker. We recommend the use of a Type
B curve circuit breakers. The EV charger features
an integral 30mA type-A RCD with 6mA DC
leakage detection and therefore an external RCD
is not usually required:
1. For cables without earthed metallic covering
installed in walls or partitions at a depth of
less than 50mm and also within walls and
partitions with metal parts, and not protected
by steel conduit or similar then RCD
protection is required.
2. If the cable is clipped directly to the surface
of a wall and does not pass through a wall or
partition to the EV charger then a standard
B type 40A MCB may be installed into the
Consumer unit, however RCD protection
may be required for other reasons such as
if it forms part of a TT system and the earth
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fault loop impedance values cannot be met.
This will be in compliance with the current
BS7671 Amendment 2 Wiring Regulations.
To conform with BS 7671, on occasions a two
pole MCB/RCD or other means of isolation
may be required.
Important note: A DC Leakage fault in the
vehicle may “blind” a type “AC” RCD and render
it ineffective, never feed any EVSE From an
upstream Type “AC” RCD.
Earthing requirements
The supplied EV charger features an on-board
safety monitoring system to detect low or high
voltage supplies and potential earth-neutral faults,
this in accordance with regulation 722.411.4.1
(iv) of BS7671 2018. If such a condition is
encountered the charge cycle is ended or
prevented and the EV charger indicator flashes
red and effectively becomes a double insulated
(class II) device. The vehicle becomes isolated
in accordance with Regulation 543.3.3.101(ii)
from incoming supply and poses no risk to
touch. This feature removes the requirement for
an earth electrode where it may be ineffective or
introduce further risk.
The EV charger may be connected directly
to a TN-C-S (PME) earthing system without
any special arrangements. It remains the
responsibility of the installer to conduct a risk
assessment of the immediate area to a range
of 10 meters (equipotential zone) to ensure no
other conductive metal fixings pose risks (mixture
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of TT/TN-S and TN-C-S), this is important where
cable length may enable charging inside or
outside of a building/garage where the vehicle is
within touch distance.
Where certain conditions dictate an earth
electrode must be used it shall be independent
from the distributors earth system with no direct
interconnection (the incoming supply SWA
protective earth should be isolated from the
housing and/ or earth electrode). The electrical
installer shall install a suitable electrode complete
with termination housing and covers where
appropriate, warning labels should be visible
and close to the unconnected SWA protective
earth, e.g. inside the charger.
The earth connection shall be made from the
electrode to the charger via copper conductor
earth wire of an appropriate CSA for the
installation. The earth wire shall be installed
in conduit where there is a risk of mechanical
damage or UV exposure. Recommended Earth
electrode impedance to be <100 ohms.
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