43
■
"SEt"
and flash
■
"PL:1"
is shown on the addi-
tional display
■
is shown in the upper display
area
0
2.
Press
MODE
.
0
3.
Use / to select
"P10"
.
0
4. OK
to confirm
0
5.
Use / to select access code
2
for parameter level 2.
0
6. OK
to confirm
■
"PL:2"
is shown on the addi-
tional display
■
is shown in the upper dis-
play area
0
7. MODE
to confirm
0
8.
Use / to select
"P27"
.
0
9. OK
to confirm
10.
Use / to select
"On"
.
11. OK
to confirm
12. MODE
to exit the parameter level.
■ If communication between the control
unit and the extension is working,
flash simultaneously.
■ If communication between the control
unit and the extension is faulty,
flash alternately. Fault
"CC"
is
shown.
Repeat the steps and set value
"OFF"
in
"P27"
. Then repeat the
steps once more and select value
"On"
again.
The functions of the external extension
are set in
"P40"
to
"P49"
.
Installation and service instruc-
tions
External extension
Switching off DHW heating
If the boiler is to be operated without
DHW heating (conventional gas boiler):
Switch off the function at the control
unit.
0
1.
Hold down
MODE
and simulta-
neously for approx. 5 s.
■
"SEt"
and flash
■
"PL:1"
is shown on the addi-
tional display
■
is shown in the upper display
area
0
2.
Press
MODE
.
0
3.
Use / to select
"P10"
.
0
4. OK
to confirm
0
5.
Use / to select access code
2
for parameter level 2.
0
6. OK
to confirm
■
"PL:2"
is shown on the addi-
tional display
■
is shown in the upper dis-
play area
0
7. MODE
to confirm
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5837148
Service
