Have a lip gasket and a retainer ring on hand for the
inspection trap.
1. Cut off the cold water supply and drain the DHW tank.
2. Remove the inspection traps.
Model
BL 150 BL 200 BL 300 BL 400 BL 500
Diagram
B
A + C
A + B
A + D
A + D
3. Check the anodes and replace them if necessary.
4. Remove limescale deposits in the form of sludge or strips in the
bottom of the tank. On the other hand, do not touch limescale
adhering to the walls of the tank as it provides effective protection
against corrosion and improves the insulation of the DHW tank.
5. Remove limescale deposits from the exchanger to guarantee its
performance.
6. Replace the gasket
A
and position it in the inspection hatch,
taking care to place its lug (lip gasket) towards the outside of the
DHW tank.
CAUTION
Each time it is opened, the lip retainer ring unit
must be replaced to guarantee tightness.
7. Fit the unit together.
CAUTION
Use a dynamometric spanner.
The flange mounting bolts must not be excessively tight.
Torque load
:
Lip gasket
6 N·m +1/-0
Sheet gasket
15 N·m
Approximately 6 N·m is obtained by manipulating the box
spanner with the small lever and 15 N·m by manipulating
it with the large lever.
8. After reassembly, check the watertightness of the lateral flange.
9. Switch on.
M001642-F
6x
1
A
M001641-E
6x
1
B
M001647-D
6x
1
C
M001643-E
8x
1
D
6. Checking and maintenance
BL 150...500
21
01/03/2011 - 300019417-001-C
Содержание BL 150
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