Equipment Required - Viessmann VITOTRONIC 100 GC1B Installation And Service Instructions Manual

Installation Examples
System Example 9

Equipment Required

Pos. Designation
Boiler I
1
Vitotronic 100, type GC1B
2
Boiler water temperature sensor KTS
3
Supply temperature sensor (connection to higher third party control unit)
4
Neutralizing system
7
ON/OFF switch
tP
Boiler II
9
Vitotronic 100, type GC1B
qP
Boiler water temperature sensor KTS
qQ
Boiler circuit pump
qW
3-way mixing valve
qE
Temperature sensor T1
qR
ON/OFF switch
tP
DHW tank
qT
DHW tank temperature sensor (connection to higher third party control unit)
qZ
DHW pump (connection to higher third party control unit)
qU
Heating Circuit
wP
Low Temperature Heating Circuit
wQ
Boiler Accessories
Connection to safety equipment aBÖ (see page 58)
eP
Minimum pressure limiter SDB
eQ
Maximum pressure limiter SDB
eW
Water level limiter (low water cut-off) WB
eE
Flue gas temperature sensor AGS (not for Vitocrossal)
eT
External connections (for connection to a higher third party control unit), (see page 66):
Dry contact for boiler enable, 3-way mixing valve operates in control mode
rR
External changeover of staged/modulating burners
rT
External demand burner stage 2
rZ
External demand burner stage 1
rU
42
(continued)
Vitotronic 100, GC1B Installation and Service