Installation
1
18
Installation and maintenance instructions for wall-mounted condensing gas boiler 600 - 28C • 01/2004
Subject to modifications resulting from technical improvements!
Boulter Buderus Ltd. • http://www.boulter-boilers.com
1.10.1 Regulating devices
The wall-mounted condensing gas boiler can be fitted with the
following control devices:
–
ON/OFF temperature controller, volt free;
–
a room-temperature control device at 230V connected to
the room control converter (fig. 21, item 2).
–
or a Buderus RC or Buderus
i
RT modulating room temp.
controller.
1.10.2 230V Room-temperature control device
connection
z
Remove the cover of the room control converter (fig. 21,
item 1).
z
Lead the 230V control device wire through the cable lead
(see fig. 21).
z
Fix the 230V wire to position 1 and 2 of the 230V connec-
tion (fig. 21, item 2).
1.10.3 Volt free room-temperature control device
connection
z
Remove the cover of the room control converter
(fig. 22, item 1).
z
Lead the control device wire through the cable lead
(see fig. 22).
z
Fix the wire to position 1 and 2
of the volt free connection
(fig. 22, item 2).
1.10.4 Modulating room thermostat connection
z
Open the connection box (see fig. 23).
fig. 21 Connection box - 230 Volt connection
2
1
fig. 22 Connection box - Volt free connection
2
1
fig. 23 Connection box cover