Technical data

Additional information
128
Coding 2 (continued)
Overview of all codings (continued)
Coding as per
factory setting
Address: Value
Function New coding
Address:
Value
Possible change
A5: 5 Boiler
circuit/
m
i
x
i
n
g
With the heating circuit
pump logic function (HPL
f
u
n
c
t
i
o
n
)
,
t
h
e
h
e
a
t
i
n
g
c
i
r
c
u
i
t
A5: 0 Without heating circuit pump logic function
(HPL function)
c
i
r
c
u
i
t
/
mixing
valve
circuit
p
u
m
p
l
o
g
i
c
f
u
n
c
t
i
o
n
(
H
P
L
function), the heating circuit
pump is switched off when
the outdoor temperature
(OT) rises 1 K above the
desired room temperature
(RT
des
).
OT > RT
des
+ 1 K
A5: 1
A5: 2
A5: 3
A5: 4
A5: 5
A5: 6
A5: 7
.
.
.
A5: 15
With heating circuit pump logic function
(HPL function):
The heating circuit pump is switched off if
OT > RT
des
+ 5 K
OT > RT
des
+ 4 K
OT > RT
des
+ 3 K
OT > RT
des
+ 2 K
OT > RT
des
+ 1 K
OT = RT
des
OT > RT
des
–1 K
.
.
.
OT > RT
des
–9 K
A6: 36 Boiler
circuit/
mixing
valve
circuit
Automatic changeover from
normal heating to summer
operation not active
A6: 5
to
A6: 35
Automatic changeover from normal heating to
summer operation
*1
at a variable setting value
from 5 to 35°C plus 1°C / 41 to 95°F plus
2°F at which the burner and heating circuit
pump are switched off and the mixing valve is
closed
A7: 0 Mixing
valve
circuit
Without mixing valve energy
saving function
A7: 1 With mixing valve energy saving function
(extended heating circuit pump logic)
The heating circuit pump can be switched off
additionally when the mixing valve has been
closed for longer than 20 minutes.
The heating circuit pump is switched on again
When the mixing valve goes to its control
mode
After the DHW tank has been
heated (for 20 minutes)
When there is a risk of freezing
A9: 7
Boiler
circuit
With pump stoppage time:
H
e
a
t
i
n
g
c
i
r
c
u
i
t
p
u
m
p
l
o
g
i
c
A0: 0
Without pump stoppage time
c
i
r
c
u
i
t
H
e
a
t
i
n
g
c
i
r
c
u
i
t
p
u
m
p
l
o
g
i
c
function with change of set-
point (through changing the ope-
rating mode or changes on the
”ts” selector knob or ”tm”)
A9: 1
to
A9: 15
With pump stoppage time
adjustable from 1 to 15
AA: 2 Mixing
v
a
l
v
e
With output reduction via
t
e
m
p
e
r
a
t
u
r
e
s
e
n
s
o
r
a
J
A
AA: 0 Without output reduction
v
a
l
v
e
circuit
t
e
m
p
e
r
a
t
u
r
e
s
e
n
s
o
r
a
J
A
AA: 1 Without function
*1
Based on the damped outdoor temperature which is calculated from the current outdoor temperature and a time constant which takes
into account the cooling characteristics of an average building.
5285 941 v.1.5