Electrical Connection: Controlling A Boiler In 0/10V; Connecting Boilers In Cascade With An O O Ci 345 Interface - Baxi POWER HT+ Series Installation And Service Manual

6 Installation
4 4 4 Safety device to safeguard against overheating of
the underfloor heating system, in accordance with
prevailing regulations
117 Reversing valve
Fig.62 Controlling a boiler in 0/10V
34
34 Primary pump
54

6.6.10 Electrical connection: controlling a boiler in 0/10V

+
AVS75
4
3
2
1
6.6.11 Connecting boilers in cascade with an OCI 345 interface
Connect the boilers making up the boiler cascade with O O CI 345 interfaces,
electronic devices that handle communication through a B B US 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
OCI 345 unit on the boiler
MB connector for an O O CI 345 unit
on a boiler
DB connector for an O O CI 345 unit
on a boiler
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.
38
3 3 8 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.
MW-3000041-01
Component 2
X X 30 connector on the boiler's PCB
(flat cable supplied with the O O CI
345 accessory)
MB connector for an O O CI 345 unit
on a boiler
DB connector for an O O CI 345 unit
on a boiler
7609474 - v02 - 04092014