5644258 -
8/95
GB
Service instructions
Control panel HS 2102
Save these instructions !
Buderus
HEIZTECHNIK
Service
in
structions 24.10
Attention
The settings described in
this
manual
must
be
performed
by
a qualified heating
company.
All adjustments made which
do
not
correspond
to
the settings and changes described here for-
feit
the warranty.
Switch the current
off
before opening
the
con-
trol
panel (emergency switch outside the heating
room).
2
Contents
II
II
El
II
II
II
II
II
II
m
Ill
m
m
Page
Checking the safety temperature limit st
at
. . . . . . . . . . . . . . . . 4
Program overvi
ew
.
5
Key code
.....
6
Installation entries . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 14
Installation entries f
or
special functions . . . . . . . . . . . . . . . . . 15 - 17
Re
lay test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18
LCD tes
t.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Heating curve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
20
Version
numb
er
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Re
set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
21
Sensor
c
ur
ve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22, 23
In
dex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
24
Settin
gs
record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3
II
Checking the safety temperature limit stat (STB)
1.
Switch the heating system
on
.
2.
Enter the key code (see Page
6).
3.
Press the Add
button@
until "RELAY"
appears in the displ
ay.
The first display shows the current sta
tu
s of the
heating system
(Fig.
1).
4.
Turn the knob, the flame symbol
~
for the
burner relay appears first (Fig.
2).
The burner starts.
5.
Remove the control unit knob
(Fi
g.
3).
6.
Push the lever or button (accordi
ng
to
control
panel type) towards the back with a screw-
driver
or
someth
in
g similar and keep pressing
until the safety temperature limit stat
tr
iggers
(
Fig.
4).
Stopp
in
g the check
• Press the Add @ or
EJ
button.
Replace
th
e control panel knob and set to
AUT.
• To reset the safety temperat
ur
e
li
mit stat,
unscrew the safety nut
on
th
e
STB
and press
in
the reset button underneath
(Fig.
5).
4
Fig. 3
Fig. 4
Fig. 5
Example
of current status
RELR':I
~
'iilll~
Fig. 1
Burner
RELR':I
~
Fig.
2
0 Safety
nut
STB
0/'/
Program overview
Possible settings for the 2nd
operating level
1.
Selecting the language
- Factory setting: German
Other languages: French, Italian,
Turki
sh,
Po
lish, Czech
2.
Se
lecting the unit of temperature
- Factory setting:
oc
Possible selection: °Fahrenheit
3.
Nominal sett
in
g for heating circuit =
Boiler water temperature.
- Factory setting: 75 °C
4.
Frost protection temperature
- Factory setting: + 1 °C
5.
Remote control ON/OFF
- Factory setting:
OFF.
6.
Compensation temperature
(only wi
th
remote control)
- Factory setting: + 3
oc
7.
Setba
ck
mode: Outdoor control
Reduced
Room control (only
with remote control)
Switch-off
- Factory setting: Outdoor control
8.
Minimum switch-on burner temperature
- Factory setting: 10°C
9.
Maximum switch-off burner temperature
- Factory setting: 85°C
10. Flue gas = specificati
on
of a flue gas
temperature
- Factory setting:
OFF
11. Clock = recalibration
- Factory setting: 0 sec
I day
12. Offset = room temperat
ur
e display
comparison
- Factory setting: 0.0°C
13. Relay test
14.
LCD
test
15. Heating curve
16. Version number
FJ
5
II
Key Code
Key code
The second operating level is protected against
unauthorised use by a key code.
This operating level is only planned for the instal-
lation company.
Unauthorised access forfeits the warranty.
Calling the installation level
Key code
• Press
th
e
§]
button.
• Press and hold down the Add @ button.
• Press the Install button with a pointed
object, a ball-point pen for exampl
e.
• Release both keys.
"GERMAN" a
pp
ea
rs
in
th
e display.
Attention
The heating system automatically reverts to the
previous level when no input is made within 20
seconds.
6
II
@
I
Installation entries
Nominal temperature
The temperature value is the nominal temperature
for radiators and
co
nvectors.
Th
e reference temperature is
-10
°C outdoor
temperature.
The factory setting is a heating water temperature
of+
75°C at -
10
°C
outdoor temperature.
This results in the factory heating curve as
shown.
Example
Nominal temperature 60 °C for outdoor temper-
atu
re
-
15
°
C.
60
°C is attained when the nominal temperature
is set to 56
°C.
f'
fOI"'trtR
L
oc
15
~
80~
--+---4-
--~
---r--
~
--
~~
~
Q)
75
--
-
...
2
70~
--+---4---
~
--
~~~~~
~~
I.U
...
Q)
a.
E
60~
--+---4---
~
-T.
~~~
--
~~
~
$
...
~
50
+-
--4-
--~~
~
~~~-+~
~~~
Ol
c:
~
40
+-
--
47~~
~~~-+--
-t
~~
=-~
Q)
I
20~--4---~--~--~---+--~--~
+
20
+ 15 +
10
+ 5 ± 0 - 5 -
10
-15
Outdoor temperature °C
90
(.)
80
0
75
Q)
...
::::1
70
-
I.U
...
Q)
a.
E
60
Q)
-
...
Q)
-
50
I.U
==
Ol
c:
~
40
Q)
I
30
--
v
?,
I
v
I
/
I
I
/
I
/
I
1/
I
I
I
20
+20
+
15
+10
+5
± 0
-5
- 10 -15
Outdoor temperature oc
7
II
II
Installation entries
Changing the nominal temperature
The nominal temperature can be
se
t from
+50
oc
to
+9
0°C.
The heating curve changes relative to changes
in
the nominal temperature.
The factory setting i
s+
75
°C.
• Enter the key
co
d
e.
• Press the Add @ button until "NOMINAL"
appears
in
the display.
•
Tu
rn the knob until the desired nominal
temperature appears.
Automatic operation is automatically res
um
ed
after 20 seconds.
Input range
I Nominal temperature 50°C
-9
0°C
8
rt0/'11/~RL
oc
15
N 0
1'111'1
R L
oc
56
Factory setting
Own
entry
75°C
Installation entries
Changing
the
switch-on
point
for
heating
system
frost
protection
The
co
ntrol is fitted wi
th
a heating system frost
protection to protect the heating system against
fros
t.
The factory setti
ng
is + 1 °C.
The h
ea
ting purnp runs when the temperature
drops below this value.
• Enter the key code.
• Press the Add @ button until "FROST
AT
"
appears
in
the dis
pl
a
y.
• Turn
th
e knob until the des
ir
ed outdoor
temperature appears.
Automatic operation is
au
tomatically res
um
ed
after 20 second
s.
Input range
I Heating system frost protection - 1 0 °C - + 1 0 °C
•
FROST
RT
oc
6
Factory se
tt
ing Own entry
+ 1°C
9
•
Installation entries
Remote control Yes I No
The remote control must be
ac
tivated when the
control is fitted with a
BFC
remote
co
ntrol.
• Enter the key code.
• Press the Add
@ button until "REMCONT
OFF" appears in the display.
• Turn the knob until
,.ON"
appear
s.
Automatic operati
on
Is
au
tomatically resum
ed
after 20 second
s.
Once
th
e remote control has been activated, it is
no longer possible
to
ad
just the pl
an
day and
night temperatures
on
the control panel; they can
o
nl
y be adjusted using
th
e remote
co
ntrol.
"REMCONT" a,ppears in
th
e display when the
Temp button
m is pressed.
I Remote
co
ntrol
10
Input range
OFF/O
N
REI'ICOI'IT
REI'ICOI~T
Factory setting
OFF
-cr:
o,
,-
01'1
Own entry
Installation entries
Compensation temperature
The compensation temperature can only be
entered after the remote
co
ntrol has been
activated. The compensation temperature limits
the influence of the room temperature on the
heating water temperature
(h
eating curve).
The factory setting
is
3 °C.
Attention: The influence of the room temperature
on the heating wat
er
temperature (heating curve)
is not active when you enter "OFF
".
• Enter the key code.
• Press the Add
@ button until "COM
PEN
SAT"
appears
in
the display.
• Turn the knob until
,.
OFF"
or
the desired com-
pensation temperature appears.
Automatic operation is automatically resumed
after 20 seconds.
Input range
I Compensation temperature
OFF
I 1 - 10°C
•
COI'IPENSRT
oc
ll!iillll!l
3
COI'IPEriSRT
OFF
Factory setting Own entry
3°C
11
II
Installation entries
Setback mode
You
ca
n choose between tour setback modes:
1.
Outdoor control (factory settin
g)
2. Reduced
3.
Switch-off
4.
Room control
(o
nly wi
th
remote control)
Sel
ect
ing
the se
tba
ck
mod
e
Outdoor
control:
Reduced:
Swi
tc
h-off:
Rom
control:
Either switch-off or r
ed
uced mode
is set dependi
ng
on the
ou
tdoor
temperatur
e.
The threshold is the frost protec-
tion temperatur
e.
Adjustment to a lower pl
an
room
temperature. The heating circuit
ci
rc
ulati
on
pump continues to run.
Th
e heating circuit
is
completely
switched-off, apart from frost pro-
tection, during setback time
s.
The room t
el"!)pe
rature set with
slide switch
(S,
is maintained.
You can only
se
lect
th
e room con-
trol setback mode when a remote
control is available and ,
REM
-
CO
NT
ON" has been set under
"Remote
co
ntrol
Yes/No".
• Recommended settings:
Heating circuit with
remote contro
l:
Heating circuit without
re
mote contro
l:
Floor h
ea
ting:
Heating circuit sw
it
ched oft
for setback:
• Enter the key code.
Room
co
ntrol
Outdoor
co
ntrol
R
ed
uced
Switch-off
•
Pr
ess the Add @ button until "OUTDOOR"
appears
in
the display.
• Turn the knob until the desired setba
ck
mode
appears.
Automatic operation Is automati
ca
lly resumed
after 20 seconds.
Input range
Setback mode Outdoor,
Re
duced,
Switch-off, Room
12
OUTDOOR
REDUCED
SI.JITCH
-
OFF
Factory
se
tting
Own e
nt
ry
Ou
tdoor
Installation entries
Minimum switch-on temperature
This is the boiler te
mp
erature at which the burner
is switched
on
at the la
te
st
wh
en
heati
ng
is
required.
The
factory setting is 10
°C.
• Enter
th
e key code.
• Press the Add @ button until
"M
IN
ON"
appears in the displ
ay.
• Tu
rn
the knob until
th
e desired minimum
switch-
on
temperature appears.
Automatic operation is automatically resum
ed
after 20 seconds.
Input range
J Min. switch
-o
n temp. 10
°C
-
40°C
Minimum switch-off temperature
This is the heating water temperature at which the
burner is switched off at the earliest.
The factory setting is 45
°C.
Th
is value cannot
be
set at the installation level
and is not shown in the displ
ay.
II
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!:~~;~§
~lgj~~;HIIWii!tsa::Ei~
lflEEE
~ii!iltii
l;
f'l/1
'/ 0 /'/
oc
10
oc
20
Fa
ctory setting Own entry
10
°C
13
I
Installation entries
Maximum switch-off temperature
Th
is is the nominal temperature which should not
be exceeded
in
the boiler.
The factory setting is
85 °
C.
• Enter the key code.
• Press the
Add@
button until "MAX
OFF"
ap
pears in the display.
• Turn the knob until the desired maximum
switch-off temperature appear
s.
Automatic operation is automatically resumed
after 20 seconds.
I
Max.
switch-off temp.
14
Input range
65°C-
90°C
f'lRX
01'
1
oc
85
llilililll
l
f'lRX
OFF
oc
15
Factory setting
Own entry
85°C
Installation entries for special functions
Flue gas
The flue gas temperature can only be measured
wi
th
th
e additional module
KM
202 and a flue gas
sensor.
A service message
is
output using the
ECO
-
KOM
modem (when installed) when the flue gas
temperature set is exceeded.
The boiler must then be serviced.
The factory setting is
OFF.
Flue gas measuring must be activated when the
additional module and the fl
ue
gas sensor are
installed.
• Enter the key code.
• Press the Add @ button until "FLUE GAS"
appears in the display.
• Turn the knob until the desired maximum flue
gas temperature appears.
Automatic operation is automatically resumed
after 20 seconds.
The flue gas temperatur
e,
and all other
temperatures, can be inquired using the
display on the operating level.
Input range
I Flue gas temperature
OFF
I
50°C-
250°C
FLUE
GAS
F
LU
E
GAS
F
ac
to
ry
setting
OFF
0
.-.
,-,-
oc
785
Own entry
15
El
Installation entries for special functions
Clock
You
can set the clock to a second.
The factory setting is 0 seconds/day.
Determine the deviation.
• Enter the key code.
• Press the Add @ button until "CLOCK"
appears
in
the display.
• Turn the knob until the determined deviati
on
appears
in
the display.
For exampl
e,
set
-10
sec/day when the clock
runs 1 0
sec/
day too fast.
Automatic operati
on
is automatica
ll
y resumed
after 20 seconds.
Input range
I Cl
ock
-
59
to +
59
sec/
day
16
CLOCK
0
I
H!illlll
'
CLOCK
-10
Factory setting Own entry
0
Installation entries for special functions
Offset
"OFFSET" can be used for adjustments when the
nominal room temperature shown in the display
deviates from the actual room temperature
measured with a thermometer.
The factory setting
is
0.0°C.
For exampl
e,
displayed nominal room
temperature 22
oc
actual room temperature 24 °C
• Enter the key code.
• Press the Add @ button until "OFFSET"
appears in the displ
ay.
• Turn the knob until - 2.0°C appears in the
display.
Automatic operation is automatical
ly
resumed
after 20 second
s.
Input range
I Offset
-5.0°C-
+5.0
°C
OFFSET
oc
0.0
OFFSET
oc
-2
.0
Factory setting Own entry
0.0°C
17
I
Relay test
You
can use the
re
lay test to test the switch
relays
in
the control pan
el.
The fo
ll
owing relays
can be called up:
- burner
- domestic water loading pump
- heating circuit circulation pump.
• Enter the key code.
• Press the
Add@
button until "RELAY"
appears in the displ
ay.
The actual heating system status is shown
in
the
fi
rst display.
• Turn the knob. The flame symbol
~
for the
burner appears firs
t.
"RELAY ON" is sent
to
the control panel when
the burner function is correct.
"ON" does not appear when a malfunction is
detected.
• Turn the knob furth
er.
The symbols for
domestic water and heating cir
cuit
circul
at
ion
pump relays appear sequentially.
The pump function can be checked when the
pump symbol appears in the displ
ay.
The relay test has no time limit.
Stopping or leav
in
g the relay test:
• Press the Add @ or
§]
button.
18
An
example of the actual heating
system status.
i!
iii
i
!H
H
Burner
RELAY
~
Domestic water
01'1
Heating circuit circulation pump
RELAY
~
'iilll
LCD test
You can use the
LCD
test to check whether a
ll
digits and symbols are shown correctly in the
display.
• Enter the key code.
• Press the
Add@
button until "LCD-TEST"
appears
in
the display.
• Turn the knob. All digits and symbols must
appear correctly
in
the display.
The display is defective
wh
en it is not complete.
The unit must th
en
be replaced.
All other displays under "LCD-TEST" are for inter-
nal factory use only.
Automatic operation is automatically resumed
after 20 seconds.
LCD-
TEST
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19
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Heating curve
You can u
se
the heating curve test to display the
heating water temperature for the nominal day
room temperature which is effective for outdoor
te
mp
eratures of
+10
°C,
± 0°C and - 10°C.
•
En
ter the key code.
• Press the
Add@
button until
"HE
ATCURV
E"
appears
in
the display.
• Turn the knob.
The
first display shows the
heating water temperature for +
10
°
C,
the
second for ± 0
°C
and the third for - 10°
C.
Automatic operation is autom
at
ically resumed
after 20 seconds.
20
HERTCURIJE
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10
HERTCURf)E
oc
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HERTCURIJE
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66 - 7 0
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