Viessmann VITODENS 200-W Technical Manual page 15

Installation accessories
■ Low electricity costs and precise control characteristics through the
use of high efficiency pumps and optimised mixer curve.
■ Also available with staged pumps.
■ The bypass valve for hydraulic balancing of the heating system is
available as an accessory as a threaded component for inserting into
the prepared hole in the cast body.
For part no. in conjunction with the different circulation pumps, see Viessmann pricelist.
The dimensions of the heating circuit distributor are the same, with or without mixer.
HV HR
120
a
A
b
B
C
D
E
G 1½
HV HV HR HR
Divicon with mixer (wall mounting without thermal insulation and with-
out mixer drive extension kit)
HR Heating return
HV Heating flow
A Overflow valve (accessory for multi stage circulation pump)
B Ball valves with thermometer (as programming unit)
C Circulation pump
D Bypass valve (accessory)
E Mixer-3
VITODENS 200-W
(cont.)
151
■ The overflow valve may be required when using staged pumps to
prevent the heating system running noisily. It is mounted onto the
Divicon.
■ Individually wall mounted or with a double or triple manifold.
■ Also available as kit. For further details, see the Viessmann pricelist.
Heating circuit connec- R
tion
Flow rate (max.)
m
a (female) Rp
a (male) G
b (female) Rp
b (male) G
¾ 1
3 1.0 1.5
/h
¾ 1
1¼ 1½
¾ 1
1¼ 1¼
VIESMANN
1¼
2
2.5
1¼
2
1¼
2
15