OKFF
240
Ø 125
876
885
904
989
1055
110
177
302
370
480
850
1925
+15 0
A
380
213
HR
SRL
SVL
HV
E
ADG
KAS
A
Compulsory in conjunction with DHW cylinders, below. Other-
wise, recommendation only.
ADG
Expansion vessel G ¾
(in the mounting frame or on-site expansion vessel)
E
Drain
HR
Heating return
HV
Heating flow
KAS
Boiler flue connection
OKFF Top edge, finished floor
SRL
Cylinder return
SVL
Cylinder flow
Note
Install the fuel oil filter at the height of the lower edge of the boiler and
as near as possible to the boiler, to ensure the oil hoses are long
enough when removing the burner. The fuel oil filter may be fitted either
on the r.h. or l.h. side of the boiler to suit local conditions.
Side clearance for service work
For burner service, use the cleaning set available as an accessory.
The burner holder supplied as part of this set enables an optimum
service position to be achieved for the burner. In addition, a side clear-
ance of 300 mm (on the left or right) next to the Vitoladens 300-W is
recommended.
Variable speed heating circuit pump in the Vitoladens 300-W
The integral circulation pump is a high efficiency DC pump (corre-
sponding to energy label A) with more than 50% less power consump-
tion than conventional pumps.
The pump speed and consequently the pump rate is regulated subject
to the outside temperature and the switching times for heating or
reduced mode. The control unit transmits the current default speed via
an internal data BUS to the circulation pump.
Individually match the minimum and maximum speed plus the speed
for reduced mode to the existing heating system using the control unit
codes.
The minimum pump rate is selected in coding address "E7". The max-
imum pump rate is selected in coding address "E6". The setting ranges
of these codes are limited by boiler-specific parameters.
Circulation pump UPM 15
Rated voltage
V~
230
Power consumption
W
max.
70
min.
6
in the delivered condition
37
Vitoladens 300-W
(cont.)
6
VIESMANN
VITOLADENS 300-W
/
VITOLADENS 333-F
1
5822 425 GB
