Baxi POWER HT+ Series - Gas Connection; Air Supply;Flue Gas Outlet Connections

4
44
Safety device to safeguard against overheating of
the underfloor heating system, in accordance with
prevailing regulations
117
Reversing valve
158
Flow temperature sensor
200
Lead boiler
201
Secondary boiler
See
Connection diagram: Boilers in cascade + 1 direct circuit + 1 un
derfloor heating circuit + 1 domestic hot water tank, page 35.
Configuring boilers in cascade + 1 direct circuit + 1 underfloor
heating circuit + 1 domestic hot water tank, page 65.
6.6.10 Electrical connection: controlling a boiler in 0/10V
Fig.62 Controlling a boiler in 0/10V
1
2
3
4
Aux 1-2 230 V
TA TS
LN LN L LNNLNLN
MW-3000041-01
34
AVS75
38
+
34
Primary pump 3
38
Remote control with or without room temperature
sensor
See
Connection diagram: controlling a boiler in 0/10 V, page 36.
Configuring control of a boiler in 0/10V, page 65.
6.6.11 Connecting boilers in cascade with an OCI 345 interface
Connect the boilers making up the boiler cascade with O
OCI 345
interfaces,
electronic devices that handle communication through a B
BUS
link. The
OCI 345
interfaces must be connected to each boiler with three connec
tors.
Tab.19 Connecting the components of the boiler cascade
Component 1 Component 2
OCI 345
unit on the boiler X
X30
connector on the boiler's PCB
(flat cable supplied with the O
OCI
345
accessory)
MB
connector for an O
OCI 345
unit
on a boiler
MB
connector for an O
OCI 345
unit
on a boiler
DB
connector for an O
OCI 345
unit
on a boiler
DB
connector for an O
OCI 345
unit
on a boiler
6 Installation
54 7609474 - v02 - 04092014