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10.5.2
Functional Description
As
eddi
is predominately a water heating control device, it can be used to manage all of the water heating,
even if an auxiliary heat source is used to heat the water. With this application the homeowner will be able to
program auxiliary boiler boost times with
eddi
.
In the UK a popular plumbing and wiring scheme used by central heating systems is referred to as 'S-Plan'. This
scheme usually has a standard junction box which
eddi
can be wired to, to enable programming of water
heating times with the BOOST TIMER feature of the
eddi
.
The water heating element (4) is wired to the Heater 1 output and Relay 1 of the Relay & Sensor Board (6) is
wired to the S-Plan wiring centre (8). Any existing water heating control is removed or disconnected.
The water in the cylinder (3) is heated with only surplus power until the thermostat has opened, the
eddi
will
display Max Temp Reached and the surplus power will then be exported until the water cools, heating will then
resume. The BOOST TIMER (RELAY 1) in the
eddi
is used to program the auxiliary heat source (e.g. a gas boiler)
to heat the water either early in the morning or later in the evening, depending on the home owners' lifestyle.
Heating the water during times of generation (e.g. daylight hours) is best avoided to allow maximum capacity
for the surplus energy. Whenever the boost is active, Relay 1 will operate and the S-plan heating system will
respond, heating the water via the auxiliary boiler. The BOOST TIMER (HEATER 1) can be used if it is desired
to boost water heating with the immersion heater.
Installation of the temperature probe (7) is optional; the immersion heaters' mechanical thermostat is used by
eddi
if water temperature reading is not required.
This is also applicable to other boiler control wiring schemes i.e. Y Plan
10.5.3
Settings Required
Menu Option
Settings
Main
Menu
Settings…
Display…
Icons
…
Heater 1:
Top
Immersion/Bottom
Immersion
Heater 2: Underfloor
Heater Settings
Priority…
Heater 1
Device
Settings
Advanced Relays &
Sensors
Temperatures…
Set Temperatures
as required if using
temperature
probes
eSense Input…
Boost…
Heater 2
Содержание eddi 16A1P01H
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