20171652
32
GB
E-display control
6.6
Unlock procedure
The burner is in lockout when the red light of
ENTER
button is on
and the display shows the lockout code.
H120: Error code
D1: Diagnosis code 1
D2: Diagnosis code 2
Refer to paragraph
“Faults - Probable causes - Solutions”
page 43 to identify the problem.
Release by pressing
“ENTER”
key.
When the button is released, the lockout signal will disappear and
the red pilot light will go out.
The control box is unlocked.
6.7
Start-up procedure
Make sure that the Operator Panel displays the heat demand and
OFF: this means that it is necessary to set the burner modulation
curve.
Access by referring to
The display shows the burner status.
Fan motor start.
The valve leak detection test is carried out.
S9970
Time when the error occurred.
S9985
S9986
S9988
Summary of Contents for 20171510
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