Weishaupt WM-L20/2-A R - Ring Main Operation; Oil Circulation Unit; Flue Gas System

Installation and operating instruction
Oil burner WM-L20/2-A R (W-FM100/200)
12 Project planning
83252902 1/2019-09 La
64-84
12.1.1 Ring main operation
Oil supply via ring main system is recommended for:
large industrial and district heating installations, which are run almost continually,
larger distances,
several burners.
For installation and function drawing for ring main operation, see Technical work-
sheets.
The installation of a duplex oil pump station as ring main pump is recommended.
Cleaning and service work on the pump or oil filter is then possible during burner
operation.
The supply quantity must be a minimum of one and a half to twice the total firing
rates of all burners supplied by the ring main.
The burners are connected to the ring main via a two pipe system.
Set ring main pressure for fuel oilEL via pressure regulating valve to
1…1.5bar.
The oil filter must be suitable for the ring main pressure.
An oil circulation device or Weishaupt gas/air separator should be fitted at each
oil outlet point. Observe information label on separator.
12.1.2 Oil circulation unit
The ring main supply can be fitted with an oil circulation unit.
The unit contains:
oil meter,
oil filter,
circulation tank,
safety valve.
Recommendation Weishaupt oil circulation unit W-OC-…
12.2 Flue gas system
When designing the flue gas system observe BDH Info sheet No. 32 "Require-
ments on flue gas systems, see www.bdh-koeln.de.