Glow-worm ENERGY 25c - 8 Adapting the unit to the heating installation; 8.1 Burner anti-cycling time; 8.2 Setting the pump output

Adapting the unit to the heating installation 8
0020177746_03 ENERGY Installation and maintenance instructions 21
Status codes – Overview (→ Page 34)
◁ If the product is working correctly, the display shows
S.14.
8 Adapting the unit to the heating
installation
You can reset/change the system parameters (section "Us-
ing diagnostics codes").
Overview of diagnostics codes (→ Page 30)
8.1 Burner anti-cycling time
To prevent frequent switching on and off of the burner and
thus prevent energy losses, an electronic restart lockout
is activated for a specific period each time the burner is
switched off. The burner anti-cycling time is only active for
the heating mode. Hot water handling mode during a burner
anti-cycling time does not affect the time function element.
8.1.1 Setting the maximum burner anti-cycling
time
1. Set the diagnostics code. (→ Page 15)
Overview of diagnostics codes (→ Page 30)
2. If required, adjust the maximum burner anti-cycling time
using the diagnostics code d.02.
8.1.2 Resetting the remaining burner anti-cycling
time
▶
Hold the button down for more than 3 seconds.
◁
is shown in the display.
8.2 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 you have installed a low loss header in the heating install-
ation, you should switch off the speed regulation and set the
pump output to a fixed value.
▶ If required, change the setting of the pump speed, which
depends on the operating mode, under diagnostics code
d.14.
▶ Set the diagnostics code. (→ Page 15)
Overview of diagnostics codes (→ Page 30)
Flow rate-pressure curves for 25 kW
(pressure measured downstream of the valves)
A
B
0
10
20
30
40
50
60
0 200 400 600 800 1000 1200
1
2
3
4
1 Maximum speed (by-
pass closed)
2 Maximum speed (de-
fault setting for the by-
pass)
3 Minimum speed (default
setting for the bypass)
4 Flow rate at maximum
output (ΔT = 20K)
A Throughput in circuit
(l/h)
B Available pressure
(kPa)
Flow rate-pressure curves for 30 kW
(pressure measured downstream of the valves)
A
B
0
10
20
30
40
50
60
0 200 400 600 800 1000 1200
70
1
2
3
4
1 Maximum speed (by-
pass closed)
2 Maximum speed (de-
fault setting for the by-
pass)
3 Minimum speed (default
setting for the bypass)
4 Flow rate at maximum
output (ΔT = 20K)
A Throughput in circuit
(l/h)
B Available pressure
(kPa)
Flow rate-pressure curves for 35 kW
(pressure measured downstream of the valves)
A
B
0
10
20
30
40
50
60
0 200 400 600 800 1000 1200
70
1
2
3
4
1 Maximum speed (by-
pass closed)
2 Maximum speed (de-
fault setting for the by-
pass)
3 Minimum speed (default
setting for the bypass)