Installing the boiler
7
Logano GB125 oil condensing boiler - Technical specifications are subject to change without prior notice.
35
B
With the aid of a bleed key, bleed the heat exchanger
via the air vent valve (1). The heat exchanger is au-
tomatically vented after fitting an air vent valve set
(
B
Once the desired operating pressure is reached, stop
the procedure.
B
Check the connections and pipework for leaks.
B
Vent the heating system via the radiator air vent val-
ves.
B
Top up with water again if the operating pressure
drops as a result of bleeding the system.
B
Reopen the cap valve.
USER INFORMATION
Vent the boiler and heat exchanger sepa-
rately.
Fig. 31
Venting the heat exchanger
1
Air vent valve (5 mm quadrant) on the heat exchanger
(condensing heat exchanger)
1
