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Artikel-Nr. 15 513 50 c
The anti-siphon device must be replaced with a new one:
•
if there is any sign of wear or if the product or parts thereof are damaged, it must be
replaced.
•
after flooding,
•
if fuel escapes from the anti-siphon device.
In the event of inadmissible operating pressures > 10bar caused by temperature-related
changes in volume, the membrane is destroyed, which, in turn, destroys the anti-siphon
device.
Damage to the product due to flooding!
Causes malfunctions.
The higher the water column above the diaphragm-controlled anti-siphon device, the
higher the pressure on the membrane. For each metre of water column, the
protection against siphoning is reduced by an average of 1.50m. If the membrane is
destroyed, protection is no longer guaranteed!
Replace product after flooding!
TROUBLESHOOTING
Fault cause
Action
No oil flow
Oil supply is closed:
open valves or shut-off fittings.
Burner malfunction in
ongoing operation
The anti-siphon device is “blocked”:
set the correct safety height
HA
from the measured height
difference
∆
X.
Safety height
HA
and measured height difference
∆
X
check and, if necessary, set the safety height HA correctly.
RESTORATION
If the actions described in TROUBLESHOOTING do not lead to a proper restart and if there is
no dimensioning problem, the product must be sent to the manufacturer to be checked. Our
warranty does not apply in cases of unauthorised interference.
The product may be cleaned and maintained only by companies such as those
described in ASSEMBLY.
1. Check for leaks at the connection elements of the anti-siphon device:
Is the o-ring in a good condition?
In copper pipes, is the compression fitting with reinforcing ring okay?
2. Choose the correct inside diameter of the piping:
Choose the inside diameter to suit the actual flow rate.
3. Measure the suction pressure at the burner pump with the specification
∆
p
Pump
≤
- 400mbar
. Is it
> 400mbar
?
•
Check for leaks and/or check the Safety height
HA
.
•
Reduce any excess heights in the piping (max. 4m).
•
Reduce pressure loss in the suction line, e.g. with different fittings, elbows, etc.
•
Check for contamination in the complete suction line, rinse if necessary.
