76
0
3.
Use a vacuum cleaner to remove
residues from heating surface
B
inside the combustion chamber.
0
4.
If required, spray slightly acidic,
chloride-free cleaning agents based
on phosphoric acid onto heating
surface
B
and let the solution soak
in for at least 20 min.
0
5.
Thoroughly flush heating surface
B
with water.
0
6.
Reopen the opening in heating sur-
face
B
.
0
7.
Reinstall separating plate
A
and
tighten screws with 1.5 Nm.
Note
Ensure the separating plate is fitted
correctly.
0
8.
Install the burner and tighten the
screws diagonally with 8.5 Nm.
0
9.
Fit the gas/air duct with a new gas-
ket. Tighten the union nut with a tor-
que of 100 Nm.
10.
Check the gas connections for tight-
ness.
Danger
Escaping gas leads to a risk
of explosion.
Check all fittings for gas
tightness.
11.
Connect the electrical cables/leads
to the corresponding components.
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5618 294 GB
Summary of Contents for C3HA
Page 39: ...39 2 2x 1 Installation sequence Removing the front panel 5618 294 GB Installation ...
Page 42: ...42 1 2 Installation sequence Removing the transport brackets 5618 294 GB ...
Page 151: ...151 Checking and replacing resistors B C A Troubleshooting Repairs cont 5618 294 GB Service ...
Page 181: ...181 Parts lists Control unit assembly cont 5618 294 GB Service ...
Page 183: ...183 Parts lists Miscellaneous assembly cont 5618 294 GB Service ...
Page 191: ...191 5618 294 GB ...