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Application Examples
Key for Wiring Diagram 9
eddi
device
Mains supply (230V AC from B16 circuit breaker or
13A fused spur)
Hot water cylinder
Water heating element (max. 3.7kW)
Isolator (20A double pole)
Relay & Sensor Board (optional add-on for
eddi
)
Temperature probe (type PT1000) (optional)
Y-Plan control water and heating junction box
Auxiliary water heating boiler
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 'Y-Plan'. This scheme has
a standard junction box which
eddi
can be wired 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 Y-
Plan control junction box (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 for is active, Relay 1 will operate and the Y-plan heating system will respond, heating the water via the
auxiliary boiler.
The
BOOST TIMER (HEATER 1)
can be used if it desired to boost water heating with the immersion heater. In addition, it
can be used at the time as the Relay 1 boost if extra fast water heating is needed.
Installation of the temperature probe (7) is optional; the immersion heaters' mechanical thermostat is used by
eddi
if water
temperature reading is not required.
Settings Required
Menu Option
Settings
Main Menu
Settings…
Display…
Icons…
Heater 1:
Water Top
Heater 2:
None
Advanced Menu…
Relays &
Sensors…
Temperatures…
Set Temperatures as
required if using
temperature probes
Relay 1…
Boost Timer
operation and installation manual
eddi
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Содержание eddi
Страница 1: ...eddi operation and installation manual myenergi uk Rev 1 0 August 2017 ...
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