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Configuration
operation and installation manual
zappi
29
Limit current drawn by two
zappi
devices that are on the
same 32A supply.
None; only the internal CTs are used.
CTINT
Type: Internal
Group: IL1
Group Limit: 32A
Limit current drawn by a
zappi
device that is fed from a 32A
supply which is also feeding
another
appliance (e.g.
a
tumble dryer).
One CT is clipped around Live of the 32A
supply and wired to CT2 of the
zappi
.
CT2
Type: Monitor
4
Group: MN1
Group Limit: 32A
Limit current drawn by two
zappi
devices that are in a
garage which is fed from a 40A
supply. A washing machine and
dryer are also in the garage.
One CT is clipped around Live of the 40A
supply to the garage and wired to CT2 of
one of the
zappi
units.
Note
: The other
zappi
does not need to
have a CT connected
,
but it will still need
to have a CT input configured to be in the
same Monitor group.
CT2
Type: Monitor
4
Group: MN1
Group Limit: 40A
Preconditioning
Most EV’s provide a preconditioning function that can be used to prepare the vehicle for a journey – typically by
warming/cooling the inside of the car, defrosting the windscreen and possibly warming the battery so that it is in
the optimum state for driving the vehicle.
To avoid draining the battery to precondition the car, the
zappi
preconditioning mode can be set so that the power
needed is provided from the electricity supply.
Note:
This feature only works if
zappi
has detected “Charge Complete” i.e. the previous charge was stopped by the EV
because the battery was full.
If this is not the case, then the only way to ensure that the battery is not drained during the EV preconditioning is to set
a Scheduled Boost to coincide with time when the EV will be preconditioning.
Setting Preconditioning
The preconditioning mode can set to “On” or “Off”:
CT Type
Function Description
Off
Once
zappi
detects “Charge Complete”, the next time the EV tries to draw power
zappi
will
revert to the mode set (ie ECO, ECO+ or FAST). If
zappi
is in ECO+ and there is not enough
surplus generation then the charge will pause and
zappi
will display "Waiting for surplus
On
When preconditioning is turned ON, the amount of energy (kWh)
zappi
should supply to warm
up the battery / precondition the EV can also be set.
Once
zappi
detects “Charge Complete”, the next time the EV tries to draw power
zappi
will
start a Preconditioning Boost (to the kWh target set) and then revert to normal charging, in
whatever mode it is set to.
4
Note
: the “Monitor” group is not currently supported by the
harvi