Myenergi eddi 16A1P01H, Руководство по установке

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10.3.2 Functional Description
Some electric only households that employ dual tariff billing use two separate electricity meters; one is live for
24 hours and the other is off-peak timed and bills at the economy rate. Only some appliances are connected
to the off-peak supply (usually water heaters and storage heaters).
This application enables automatic boosting of water heating when the economy tariff is available whilst also
using any surplus generated power to heat the water. Both the top and bottom immersion heaters can use
surplus power and be boosted with peak rate electricity. However, only Heater 1 can be boosted with off-peak
electricity.
eddi
is powered from the 24-hour supply and the bottom immersion heater is wired directly to Heater 1 output.
During the economy tariff times, power needs to be drawn from the off-peak tariff meter, to achieve this the
top immersion heater is switched from the
eddi
Heater 1 output and the off-peak supply using both relays of
the Relay & Sensor Board (6).
Heater 1 (the top immersion heater) is heated with surplus power until the water at the top of the cylinder is
hot and the thermostat opens, then
eddi
will immediately switch over to Heater 2; heating the bottom of the
cylinder. This makes the most of surplus energy as sometimes there will not be enough to heat the whole
volume of the cylinder; it’s best to heat a smaller proportion (i.e. the top) first so there is some usable hot water,
rather than a larger volume of warm water.
During heating of Heater 2,
eddi
will switch back to Heater 1 every 15 minutes to check if it can store any more
heat. When the water is fully heated, any surplus power will be exported,
eddi
will switch back to the priority
heater and check the lower priority heater every 15 minutes.
If eSense Input is set to Boost Enable 1, the BOOST TIMER screen for Heater 1 will include an option to enable
the boost timer only when the eSense input is live. In the BOOST TIMER, the e can be toggled on/off, if e is
present, the boost will activate only when the boost times are valid and the economy rate tariff is available.
Alternatively the eSense input can be used to activate the boost whenever the economy tariff rate electricity
is available, regardless of boost times. To do this, eSense Input should be set to Boost 1. When using this option,
the Boost Timer is not needed. Installation of the temperature probes (7) is optional; the heaters’ mechanical
thermostat is used by
eddi
if temperature readings are not required. The
eddi
device should be labelled with
a “dual supply” warning.
10.3.3 Settings Required
Menu Option Settings
Main
Menu
Settings… Display… Icons… Heater 1: Top
Immersion
Heater 2: Bottom
Immersion
Priority… Heater 1
Device
Settings
Advanced Relays &
Sensors
Temperatures… Set
Temperatures
as required if
using
temperature
probes
eSense Input… Boost… Boost Enable 1
/Boost 1