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minutes.
Each step increased or decreased corre-
sponds to 2 seconds.
• To modify the programmed SET, act on
buttons
or
number programmed to flash (Fig. 7.39).
Fig. 7.39
• To exit programming, press button .
7.14 Checking the ignition device
With the burner on high flame close the gas
cock.
After four ignition attempts (about four min-
utes) the boiler does not function and a
code that alternates between the letter Er
and the writing RESET appear on the LCD
display, it indicates that the safety lock-out
has stopped the boiler. The display back-
ground flashes (Fig. 7.40).
RESET
RESET
Fig. 7.40
COMMISSIONING
and wait for the
Press the reset key on the boiler control
panel 14 to reset its functioning.
7.15 Checking the flue system
The flue system should be visually checked
for soundness. Check all clamps, gaskets
and fixing are secure and tight.
Ensure that the flue terminal is sited cor-
rectly in accordance with the flue fitting in-
structions and Fig. 5.1 on page 37 of this
manual.
To carry out a combustion check refer to
the instructions given in the section "Com-
bustion analysis check" to page 78 of this
manual.
Reference figures are given in the "Techni-
cal Data" section page. 26 of this manual
(Flue gas figures).
7.16 Checking the condensate
drain pipe
Check the soundness and integrity of the
condensate drain pipe.
Verify the cleanness and correct filling of the
condensate traps.
7.17 Instructing the user
Hand over this combined User & Installation
manual and the Service manual to the end
user and explain how to use the unit in both
c.h. and d.h.w. modes.
Take the User step by step through the light-
ing instructions.
Show the User how to switch off the appli-
ance quickly and indicate the position of the
electric supply isolator.
Explain the proper use and adjustment of all
system controls; this will ensure the great-
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