Installing The Oil Supply As A Single Line System; Opening The Control Unit Enclosure - Viessmann Vitoladens 300-W Installation And Service Instructions Manual

Installation sequence

Installing the oil supply as a single line system

A
Fig. 6
Fuel oil filter with automatic air vent valve
A
Foot valve
B
Important: Install a single line fuel oil filter R
grade max. 40 m) and a fuel oil air vent valve in the
µ
oil supply.
Recommendation:
■ Automatic fuel oil air vent valve with filter: FloCo-
Optimum-K (filter grade 5
■ For replacement during maintenance work: Micro-
tec MC-18 oil filter element (filter grade 5
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.

Opening the control unit enclosure

!
Please note
Electronic assemblies can be damaged by elec-
trostatic discharge.
Prior to commencing any work, touch earthed
objects such as heating or water pipes to dis-
charge static loads.
12
B
(filter
⅜
m).
µ
m).
µ
Sizing the oil line
Suction Max. pipe length in m for suction
head H in m line internal diameter
4 mm
+4.0 100
+3.5 95
+3.0 89
+2.5 83
+2.0 77
+1.5 71
+1.0 64
+0.5 58
0.0 52
-0.5 46
-1.0 40
-1.5 33
-2.0 27
-2.5 21
-3.0 15
-3.5
-4.0
—
Note
For the oil line, select the smallest diameter required
for the suction head.
5 mm 6 mm
100
100
100
100
100
100
100
100
100
100
97
81
66
51
36
9 21
6
100
100
100
100
100
100
100
100
100
100
100
100
100
100
75
44
12