Adapting the unit to the heating installation 8
0020233500_01 auroCOMPACT Installation and maintenance instructions
29
Heat de-
mand
Number
of per-
sons
Burner operating hours until the
next inspection/maintenance work
is due (dependent upon the sys-
tem type)
20.0 kW
3
‑
4
2600 h
4
‑
5
2700 h
25.0 kW
3
‑
4
2800 h
4
‑
6
2900 h
> 27.0 kW
3
‑
4
3000 h
4
‑
6
3000 h
The values stated correspond to an average operating time
of one year.
If you do not set a numerical value, but instead set the sym-
bol "
–
", the "
Maintenance display
" function is not active.
Note
On completion of the set operating hours, you
must set the maintenance interval again.
8.8
Setting the pump output
The product is equipped with a speed-regulated high-effi-
ciency pump, which adjusts independently to the hydraulic
conditions of the heating installation.
If required, you can manually set the pump output to five
fixed, selectable steps based on the maximum possible out-
put. This switches the speed regulation off.
The pump operating mode is set to "auto" at the factory in
accordance with the most recent energy conservation ordin-
ance.
▶
To change the pump output, change
D.014
to the desired
value.
Note
If you have installed a low loss header in the
heating installation, we recommend switching
off the speed regulation and setting the pump
output to a fixed value.
8.8.1
Remaining feed head, pump
8.8.1.1 Pump curve for 14 kW
60
70
50
40
30
20
10
0
500
1000
1500 A
B
2
3
1
5
4
1
Bypass
closed/Vmax/code
d148=8 (boost)
2
Bypass
closed/Vmax/code
d14=0
3
Bypass in factory set-
ting/Vmax/code d148=8
(boost)
4
Bypass in factory set-
ting/Vmax/code d14=0
5
Bypass open/Vmin/code
d14=0
A
Throughput in circuit
(l/h)
B
Available pressure
(kPa)
8.8.1.2 Pump characteristic line for 20 kW
60
70
50
40
30
20
10
0
500
1000
1500 A
B
2
3
1
5
4
1
Bypass
closed/Vmax/code
d148=8 (boost)
2
Bypass
closed/Vmax/code
d14=0
3
Bypass in factory set-
ting/Vmax/code d148=8
(boost)
4
Bypass in factory set-
ting/Vmax/code d14=0
5
Bypass open/Vmin/code
d14=0
A
Throughput in circuit
(l/h)
B
Available pressure
(kPa)
8.8.2
Setting the pump output for subsidy
programmes
Characteristic line for proKlima (14 and 20 kW)
60
70
50
40
30
20
10
0
500
1000
1500 A
B
1
2
3
1
Bypass plug
d14=6/d122=400
2
Bypass plug
d14=6/d122=200
3
Bypass plug
d14=6/d122=100
A
Throughput in circuit
(l/h)
B
Available pressure
(kPa)
Changes must be made during the installation for the proK-
lima or KfW label.
Setting for proKlima
▶
Remove the bypass and replace it with the plug that is
supplied.
▶
Set
D.014
to 6 (= auto (
Δ
p limit)).
▶
If required, adjust
D.122
(set to 200 mbar as standard).
◁
The hydraulic pressure difference with respect to the
heating system is limited to the set value (see dia-
gram).
