Viessmann GC1 - Page 43

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Vitotronic 100, GC1B / Vitotronic 300-K, MW1B Installation and Service
Installation Examples
System Example 5 (continued)
Pos. Description
wE
Supply temperature sensor M3 as contact temperature sensor
and
wT
Mixing valve motor M3
or
wE
Supply temperature sensor M3 as
- contact temperature sensor
or
- immersion temperature sensor
and
wT
Mixing valve motor for flanged mixing valve M3
wZ Heating circuit 1 (low temperature heating circuit) at the Vitotronic 200-H eP
wI
Heating circuit pump M1
wU
Supply temperature sensor M1 as contact temperature sensor
and
wO
Mixing valve motor M1
or
wU
Supply temperature sensor M1 as
- contact temperature sensor
or
- immersion temperature sensor
and
wO
Mixing valve motor for flanged mixing valve M1
eP
Vitotronic 200-H
and
LON communication module
and
LON connecting cable
eQ
Outside temperature sensor ATS
Boiler accessories
eE
Connection to safety equipment aBÖ (see page 61)
eR
Maximum pressure limiter SDB
eT
Minimum pressure limiter SDB
eZ
Water level limiter (low water indicator) WB
rT
Central fault message system S
eI
Flue gas temperature sensor AGS
External hook-ups
zR
External changeover of stepped/modulating burners
zI
External boiler blocking
zO
Start boiler externally as the last one in the boiler sequence