Electrical Connections; Electrical Connections Of The Appliance; Connecting External Devices - Baxi EcoBlue Heat 12 Installation And Service Manual

6.2

Electrical Connections

Key to colours
b - Blue
br - Brown
w - White
o - Orange
gr - Grey
g/y - Green/Yellow
230V
50Hz
L N E
g/y
Room
Timer
L
N
CH on
HW on
HW off
Y Plan, Room Thermostat System, CH Interlocked By Room
Thermostat
At least the Radiator(s) near the Room Thermostat not TRV'd
Pump run from Switched Live
7219717 - 02 (08/15)
3 Core Cable Connection
Fig. 32
Y Plan
b
Diverter
w
Valve
Cylinder
gr
Stat
1
o
Stat
C 2
Boiler
L E
Pump
N E L
6.2.1

Electrical Connections of the Appliance

1. See Section 5.2.2. for details of the electrical supply. 1.3
metres of 3 core cable are supplied connected to the boiler.
2. Switched live must be connected to the brown (live) wire of
the 3 core cable.
6.2.2

Connecting External Devices

1. System Controls - This boiler operates on a switched live only.
2. To comply with Part L1 of the Building Regulations the heating
system into which the boiler is installed should include the
following:
a)
b)
c)
3. Such a system needs to be fully pumped and must provide
independent temperature and time control to both the heating
and hot water circuits.
4. Connection diagrams for Y and S plan systems are shown.
230V
50Hz
L N E
N
Timer
L
N
CH on
HW on
S Plan, Room Thermostat System, CH Interlocked By Room
Thermostat
At least the Radiator(s) near the Room Thermostat not TRV'd
Pump run from Switched Live
Zone Controls
Timing Controls
Boiler Control Interlocks (Room & Cylinder
Thermostats)
b
gr
Motor
b
S Plan
o
br
Valve
g/y
Cylinder
Room
Stat
Stat
Pump
N E L
EcoBlue Heat
Installation 6
gr
Motor
br
S Plan
g/y
Valve
o
Boiler
L E N
39