Heating system types
11
Circuit Diagram 3
Single-boiler system with shunt pump for elevating the return temperature
in conjunction with Vitorond 200, VD2
A Boiler with Vitotronic 100, GC1
B Domestic hot water tank
C Heating circuit with mixing valve
Plugs
§ Boiler temperature sensor
% DHW tank temperature sensor
(accessory)
aJ A Temperature sensor T1
aJ B Temperature sensor T2
sÖ A1 Close mixing valves with
external heating circuit
controls
sA DHW pump
sL Shunt pump
fÖ Power supply connection,
120 VAC
fA Burner (1st stage)
lÖ Burner (2nd stage/modulating)
aVD Connection of external
equipment (see page 51)
aVH Connection of external
equipment (see page 51)
*1
On the Vitorond the boiler supply and return are at the rear of the boiler.
5351 338 v1.6
B
C C
A
90
41
40
146
143
3
17A
17B
T1
T2
*1
29
5
21
A1
20
Comments to this Manuals