Supplied By www.heating spares.co Tel. 0161 620 6677
OPERATION - CDI
8 716 115 748 (2009/09)
12
3
OPERATION - CDi
3.1
INITIALISATION
When it is switched on, the appliance performs a self-
test which takes about 10 seconds.
While the test is in progress, the display shows for the
first two seconds
. Additionally buttons and
light up orange and the reset button lights up red.
Afterwards the display shows the CH flow temperature.
On completion of the test sequence the appliance is
ready for operation.
3.2
Display messages
The 7-Segment-Display has following display messages
(table 2 and 3):
Displayed value Description
Range
digit, dot
followed by
letter
Service function
letter followed
by digit or letter
Error code
two digits
decimal value e.g. flow
temperature
00..99
U followed by
0..9
decimal value;
100..109 will be displayed
as U0..U9
0..109
one digit (long
displayed)
followed by two
digits twice
(short displayed)
decimal value (triple-digit);
first digit will be displayed
alternating with two last
digits (e.g.: 1...69..69 for
169)
0..999
two dashes
followed by two
digits twice
code plug number;
the value is displayed in
3 steps:
1. two dashes
2. two first digits
3. two last digits
(e.g.: -- 10 04)
1000..
9999
two letters
followed by two
digits twice
version number;
the value is displayed in
3 steps:
1. two first letters
2. two first digits
3. two last digits
(e.g.: CF 10 20)
Tab. 2 Display messages
Special
messages
Description
Key acknowledgement after pressing
one button (except
reset
button)
Key acknowledgement after pressing
two buttons simultaneously
Key acknowledgement after
pressing button longer than 3
seconds (storage function)
The display shows alternatively the
CH flow temperature and
. The
appliance works continuously at the
minimum power (see service
function
2.F
).
The display shows alternatively the
CH flow temperature and
. The
appliance works continuously at the
maximum power (see service
function
2.F
).
Appliance is in Air purge mode, see
service function
2.C.
The display shows alternatively the
CH flow temperature and
. The
Syphon-fill programme is active. See
service function
4.F
The display shows alternatively the
CH flow temperature and
reminding that the next service is
due. The burner service interval of
2324 hours has run out. See service
function
5.F
.
The display shows alternatively the
CH flow temperature and
. The
pump is blocked. See error E9.
The display shows alternatively the
CH flow temperature and
. The
gradient limitation is active. The
primary temperature is rising too
fast and the burner has switched off
for 2 minutes. See error E9.
Tab. 3 Special display messages
