- 7 -
II - MAINTENANCE
The annual inspection of the boiler and of the com-
bustion product outlet is compulsory and validates
the warranty. It must be carried out by a qualified
person.
Spare parts must be ordered by using the referen-
ces listed in chapter V - PARTS LISTS - page 19 -
SERVICING MANUAL, and specifying the type and
serial number of each part.
Before any servicing, cut the power
supply. Close the gas inlet of the boiler
and the isolation valves if required.
If the boiler is removed, provide a port at
the end of the gas piping.
Remove the front panel (item G) from
the boiler and disconnect the earth wire
(item O).
1 - SERVICING THE FAN AND THE BURNER
Check the state of the ventilator and the burner and
clean them if necessary (following their service ins-
tructions).
!
!
G
O
2
3
4
7
T
H
I-
85-00
10
1
6
5
5
8
9
A
7
4
B
Abb. 4
Summary of Contents for THI 2-17 B 120
Page 19: ... 19 V PARTS LISTS THI 2 17 B 120 ...
Page 23: ... 23 PARTS LISTS CONTROL BOX ...
