Condensate Connection; Installing The Oil Supply As A Single Line System - Viessmann Vitoladens 300-W Installation And Service Instructions For Contractors

Installation sequence
Flue gas connection
Only carry out commissioning when the following
conditions have been met:
■ Unrestricted flow in the flue gas routes.
■ Positive pressure flue system is gas-tight.
■ Inspection port covers checked for secure and tight
seating.
Apertures for supplying sufficient combustion air are
■
open and cannot be closed.
■ All current regulations on installing and commission-
ing flue systems have been observed.

Condensate connection

A
B
Fig. 4
Inlet from the boiler
A
Neutralising system or active charcoal filter
B
Drain to the public sewage system
C

Installing the oil supply as a single line system

Note
Observe the "Technical Regulations for Oil Systems
(TRÖl)" when installing and testing the oil supply.
A
Fig. 5
Fuel oil filter with automatic air vent valve
A
Foot valve
B
Install a supply line with
7
the supply line if an existing system is fitted with a line
with larger internal diameter.
12
(cont.)
C
B
4 mm (internal). Replace
Danger
Leaking or blocked flue systems, or an inade-
quate supply of combustion air can cause life
threatening poisoning from carbon monoxide in
the flue gas.
Ensure the flue system is in good working order.
Vents for supplying combustion air must be non-
closable.
Connect the condensate pipe to the public sewage
system by the shortest route, with a constant fall and a
pipe vent. Install a neutralising system if required.
Note
DWA-A 251 permits boiler use without a neutralising
system when operating with low sulphur fuel oil
DIN 51605-EL-1 (sulphur content
We recommend using the active charcoal filter (acces-
sories) if no neutralising system is connected.
Install a single line fuel oil filter R
5 m) and a fuel oil air vent valve in the oil supply.
µ
We recommend:
Automatic fuel oil air vent valve with filter: FloCo-
■
TOP-2KM-Optimum (filter grade 5
■ For replacement during maintenance work:
Microtec MC-18 oil filter element (filter grade 5
■ For part no., see Vitoset pricelist.
For tanks sited below the oil burner pump:
If the suction head or the max. pipe length is greater
than specified in the following table, install an oil feed
pump with intermediate tank in the immediate proxim-
ity of the boiler.
Max. pipe length for supply line with
(internal)
Suction head H in m
+4.0
+3.5
50 mg/kg).
≤
(filter grade max.
⅜
m).
µ
m).
µ
4 mm
7
Max. line run in m
100
95