Installation and operating instruction
Oil burner WL20/2-C Z
12 Project planning
83307702 1/2019-04 La
63-80
Elevated oil level
If the suction line is leaking the tank can be siphoned dry. An electric anti siphon
valve
1
can prevent this.
Observe manufacturers instructions regarding pressure loss caused by anti si-
phon valve.
The anti siphon valve must close with a delay and show a pressure relief towards
the oil storage tank.
Maintain height differences:
max 4.6 m between oil level and anti siphon valve,
on single pipe system max 8 m between anti siphon valve and automatic de-aer-
ator,
on two pipe system max 20 m between anti siphon valve and oil pump.
max 8 m
max 4.6 m
max 20 m
max 4.6 m
1
1
Single pipe system
CAUTION
Damage to the oil pump caused by incorrect connection
Mixing up supply and return can damage the oil pump.
Ensure correct connection of oil hoses to the supply and return of the pump.
If the oil is supplied via a single pipe system, and automatic de-aerator must be in-
stalled in front of the oil pump.
Two pipe system
In a two pipe system the oil pump is vented automatically.
Ring main operation
Weishaupt recommends the use of a ring main when operating several burners.
