Emptying The D.h.w. Circuit - Biasi M110.24SM/E Service Manual

General access and emptying hydraulic circuits
K
Fig. 2.9 --- bottom view of the boiler
2 Remove the front and right panels of the boiler.
Open the drain tap L (Fig. 2.11) until the boiler is
3
completely emptied.
4 To help the draining of the primary circuit loose
the condensing heat exchanger air purger valve
M
Fig. 2.10
4
N
K
M
Attention: some water could remain in the condens-
ing heat exchanger.
5 Close drain tap once the emptying has been
completed.
Fig. 2.11
2.6

Emptying the d.h.w. circuit

6 Close the d.c.w. inlet cock N (Fig. 2.9);
7 Open one or more hot water taps until the boiler
has been completely emptied.
L