Single Boiler Systems - Viessmann VITOCROSSAL 200 Type CM2 Technical Manual

Control units
(cont.)
The Vitocontrol control panels with weather-compensated
Vitotronic 300-K control unit (type MW1B) for 1 to 4 boilers and 2 heat-
ing circuits with mixers, and additional Vitotronic 200-H (type HK1B or
HK3B) for 1 or up to 3 heating circuits with mixers, can be supplied for
the Vitocrossal 300.
Assignment of control units to the boilers
Vitotronic
Type
Boiler
Vitocrossal 200, type CM2, 87 to 311 kW
Vitocrossal 200, type CM2, 400 to 620 kW
Vitocrossal 300, type CM3
Vitocrossal 300, type CT3U
Vitocrossal 300, type CT3B
Vitocrossal 300, type CR3B

Single boiler systems

Vitotronic 100, type GC1B
Vitotronic 100, type GC4B
Gas condensing boilers
The following control units are available for these condensing boil-
ers.
100 200
GC1B GC4B GW1B
x x
x
x x
x x
x x
x x
Digital boiler control unit:
■ For constant boiler water temperature
or
For weather-compensated operation in conjunction with a
Vitocontrol control panel and integral Vitotronic 200-H heating circuit
control unit
or
For weather-compensated operation in conjunction with an external
control unit.
■ For two-stage or modulating burners.
■ With cylinder temperature controller.
■ Control of a cylinder loading system with mixer assembly possible
(only as an alternative to the control of a constant return temperature
raising facility with a regulated 3-way mixing valve).
■ With boiler protection function subject to boiler version.
■ With integral diagnostic system and additional functions.
■ With capability to communicate via LON (LON communication mod-
ule is an accessory).
According to the Energy Savings Ordinance [Germany], a weather-
compensated or room temperature-dependent control unit with time
program for reduced mode must be installed downstream.
Digital boiler control unit:
■ For constant boiler water temperature.
or
For weather-compensated operation in conjunction with a
Vitocontrol control panel and integral Vitotronic 200-H heating circuit
control unit.
or
For weather-compensated operation in conjunction with an external
control unit.
■ For a modulating burner.
■ With cylinder temperature controller.
■ Optional control of a primary store system with mixer assembly.
■ With integral diagnostic system and additional functions.
■ With capability to communicate via LON (LON communication mod-
ule is an accessory).
According to the Energy Savings Ordinance [Germany], a weather-
compensated or room temperature-dependent control unit with time
program for reduced mode must be installed downstream.
300 300-K
GW2B GW4B MW1B
x x
x x
x x
x x
x x
x x
VIESMANN
9
51