Cleaning The Condensing Primary Exchanger; And The Burner - Biasi Inovia 25S ERP User Manual And Installation Instructions

Main circuit
drain valve
Fig. 10.10
• To make draining easier, unscrew the plug
29 of the automatic relief valve in Fig. 10.11.
Fig. 10.11
• To help the draining of the primary circuit
loose the condensing heat exchanger air
purger valve 20 in Fig. 10.12.
- 72 -
MAINTENANCE
CLOSED
OPEN
8
29
20
Fig. 10.12
10.6 Cleaning the condensing prima-
ry exchanger and the burner
Removing the fan burner unit 39 in Fig. 10.13.
N
P
Q
O
M
Fig. 10.13
• Remove the front panel and lower the con-
trols panel (see "Dismantling the external
panels" on page 70).
• Unscrew the connector L, remove the fixing
fork K and remove the pipe J.
39
K
J
L