SDC / DHC
Operation
EN2H-0221GE51 R0808
53
H
ea
ting
c
ircu
it
nam
e
He
a
tin
g circu
it
nam
e
He
a
tin
g circu
it
nam
e
47
Low
e
ring r
a
m
p
Low
e
ring r
a
m
p
46
Pr
e-
heat
ti
m
e
a
t
0°C
Pr
e-
heat
ti
m
e
a
t
0°C
45
W
ithout r
oom
sensor
W
ithout r
oom
sensor
44
Min
. ju
mp
ba
ck
tem
p
er
at
ur
e
Min
. ju
mp
ba
ck
tem
p
er
at
ur
e
43
M
a
x. pr
e-
he
at
tim
e
M
a
x. pr
e-
he
at
tim
e
OEM
42
M
in. pr
e-
he
at ti
m
e
M
in. pr
e-
he
at ti
m
e
H
eati
n
g tec
hni
ci
an
41
S
witch
-o
n
o
p
timisa
tio
n
S
witch
-o
n
o
p
timisa
tio
n
Use
r
40
Offset
va
lv
e
posi
tion
of
hot-
wa
te
r circu
it p
re
-
control Resettin
g
of
sta
g
e
2 bur
ne
r star
t-
up
and op
er
ati
n
g
ho
ur
count
e
rs
Param
e
te
r
Da
te
Hydraulic
s
Syst
em p
a
ram
e
te
r
Hot w
a
te
r
D
irect
heat
ing
circuit
M
ixed he
at
ing
circuit
1/2
Heat gener
a
tor
D
ist
rict
heat
ing
R
e
tu
rn increa
se
Solar
Solid f
u
el
Buffe
r
Total flow control
C
ascading
Data bus
R
e
lay t
est
F
a
u
lt m
e
ss
a
g
es
1/
2
Sensor calibr
a
tion
Programming
Configuration
Configuration
(he
a
ti
ng c
irc
u
its
,
control paths)
Servi
ce functions
