62
Maintenance
Maintenance details
Removal of panelling
The panelling must first be removed,
to be able to carry out maintenance on
the boiler.
- Unscrew the 4 screws of quick-
locks A, B, C and D
- Open the 4 quick-locks A, B, C and
D and remove the housing (= air
box) from the front.
The panelling of the equipment consists
of metal and plastic parts, which can be
cleaned with a mild (non-aggressive)
cleaning agent.
When carrying out maintenance works,
only original Rendamax replacement
parts may be used.
CAUTION:
Always interrupt the power supply,
before carrying out maintenance or
repair works on the boiler.
- Dismantle the internal flue gas pipe
as follows:
- Unplug the flue gas sensor if fitted;
- Press the 2 clips of the siphon
adapter (F) and push that part of the
flue gas vent pipe (E) down. Leave
the siphon adapter (F) hanging on
the bottom plate
- Slide the slider (G) in the upper part
of the flue gas pipe upward.
- Pull the flue gas pipe (E) forward
(both exchangers simultaneously).
Ventilator unit and burner cassette
- Remove the plug connections of the
gas valve (1) and ventilator (2);
- Unscrew the coupling (3) of the gas
unit;
- Replace the gas valve gasket with a
new one;
- Unscrew the front cross-slotted
screw (4) of the air suction damper
(5);
- Loosen the left (9) and right (10)
clamp bar a quarter of a turn with
the hex key and pull it out in a
forward direction. In doing so, pay
attention to the turning direction
(red check cams);
OPEN
CLOSED
F
G
E
2
1
3
10
8
12
7
5
9
4
5
