Glow-worm Energy7 12s-A - 10 Adapting the Unit to Installation; Setting Burner Anti-Cycling Time

10 Adapting the unit to the installation
34 Installation and maintenance instructions Energy
7
0020300876_01
10 Adapting the unit to the installation
You can reset/change the system parameters (section "Us-
ing diagnostics codes").
Overview of diagnostics codes (→ Page 46)
10.1 Setting the 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. Domestic hot water mode during a burner
anti-cycling time does not affect the timing element.
10.1.1 Setting the maximum burner anti-cycling
time
1. Set diagnostics code . (→ Page 27)
Overview of diagnostics codes (→ Page 46)
2. If required, change the maximum burner anti-cycling
time using the diagnostics code d.02.
10.1.2 Resetting the remaining burner anti-cycling
time
▶ Hold the button down for more than 3 seconds.
◁ is shown in the display.
10.2 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 diagnostics code . (→ Page 27)
Overview of diagnostics codes (→ Page 46)
Flow rate-pressure curves for 12 kW
(pressure measured downstream of the valves)
A
B
0
10
20
30
40
50
0 200 400 600 800 1000
1
2
3
4
1 Maximum speed (by-
pass closed)
2 Maximum speed (fact-
ory setting for the by-
pass)
3 Minimum speed (factory
setting for the bypass)
4 Flow rate at maximum
output (ΔT = 20K)
A Flow rate in circuit (l/h)
B Available pressure
(kPa)
Flow rate-pressure curves for 15 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 (fact-
ory setting for the by-
pass)
3 Minimum speed (factory
setting for the bypass)
4 Flow rate at maximum
output (ΔT = 20K)
A Flow rate in circuit (l/h)
B Available pressure
(kPa)
Flow rate-pressure curves for 18 kW
(pressure measured downstream of the valves)
A
B
0
10
20
30
40
50
0 200 400 600 800 1000
1200
60
70
1
2
3
4
1 Maximum speed (by-
pass closed)
2 Maximum speed (fact-
ory setting for the by-
pass)
3 Minimum speed (factory
setting for the bypass)
4 Flow rate at maximum
output (ΔT = 20K)
A Flow rate in circuit (l/h)
B Available pressure
(kPa)
Flow rate-pressure curves for 25 kW
(pressure measured downstream of the valves)
A
B
0
10
20
30
40
50
0 200 400 600 800 1000 1200
60
70
1
2
3
4
1 Maximum speed (by-
pass closed)
2 Maximum speed (fact-
ory setting for the by-
pass)
3 Minimum speed (factory
setting for the bypass)