Glow-worm Compact 24c-AS/1 Installation And Maintenance Instructions Manual page 33

Set maximum burner anti-cycling time
T (target)
min
Flow
℃
35
75 1.0
10.1.2 Setting the pump output
10.1.2.1 Pump mode setting
The product is equipped with a stage-controlled high-effi-
ciency pump. In the automatic operating mode (d.14 = 0),
the pump stage is regulated in such a way that a constantly
available pressure is guaranteed.
If required, you can manually set the pump mode to five
fixed, selectable stages based on the maximum possible out-
put. This switches the speed regulation off.
▶
To convert the pump output, change d.14 to the desired
value.
Diagnostics codes (→ Page 43)
10.1.2.2 Pump diagram - pressure loss graph
Validity: Compact 24c-AS/1 (H-GB) OR Compact 24c-AS/1 (P-GB)
B
800
1 2
700
600
500
400
300
200
100
0
5 200 400
1 Max. pump speed,
bypass valve closed
2 Max. pump speed,
bypass valve opened
by 3/4 rotation
(factory setting for the
bypass valve)
0020313973_01 Compact Installation and maintenance instructions
40 45 50 55
1.0 1.0 1.0 1.0
3 4
600 800 1000 1200
3 Min. pump speed, by-
pass valve opened by
3/4 rotation
(factory setting for the
bypass valve)
4 Qmax (ΔT = 20 °C)
A Installation volume flow
in l/h
B Remaining pump head
in hPa (mbar)
Validity: Compact 28c-AS/1 (H-GB) OR Compact 28c-AS/1 (P-GB)
60
B
1.0
1
700
600
500
400
300
200
100
0
5 200 400
1 Max. pump speed,
bypass valve closed
2 Max. pump speed,
bypass valve opened
by 3/4 rotation
(factory setting for the
bypass valve)
10.1.3 Setting the bypass valve
1. Remove the front casing. (→ Page 19)
2. Hinge the electronics box downwards.
A
3. Regulate the pressure using the adjusting screw (1).
Position of the
adjusting screw
Right-hand stop
(turned all the
way down)
3/4 revolution
anti-clockwise
Three further
anti-clockwise
rotations starting
from the mid-
position
4. Hinge the electronics box upwards.
5. Install the front casing. (→ Page 19)
2 3
600 800 1000
3 Min. pump speed, by-
pass valve opened by
3/4 rotation
(factory setting for the
bypass valve)
4 Qmax (ΔT = 20 °C)
A Installation volume flow
in l/h
B Remaining pump head
in hPa (mbar)
1
Pressure Notes/application
If the radiators do not
heat up sufficiently at the
0.035 MPa factory setting.
(0.350 bar) In this case, you must
set the pump to the
maximum speed.
0.025 MPa
Factory setting
(0.250 bar)
0.017 MPa
If noises occur at radiat-
ors or radiator valves.
(0.170 bar)
4
1200 A
33