Delivered Condition; Vitotronic 200, Type Kw4, Part No. 7186 571; Specification - Viessmann VITOGAS Technical Manual

Control units
(cont.)
For heating systems with several heating circuits we recommend the
use of other boiler and heating circuit control units (e.g. Vitotronic 200
or Vitotronic 300).
Control characteristics
■ P-characteristics with two-point output
■ Thermostat for limiting the max. boiler water temperature:
75 °C, adjustable to 87 °C or 95 °C
■ Adjusting the high limit safety cut-out:
110 °C, adjustable to 100 °C
Time switch
Digital multi-channel time switch
■ Day and week program, annual calendar
■ Automatic summer/winter time changeover
■ Time, day and standard switching times for central heating and DHW
heating are factory-set
■ Switching times are individually programmable, i.e. up to four switch-
ing periods per day
Shortest switching interval: 10 minutes
Power backup: 5 years
Boiler coding card
For matching to the boiler (supplied with the boiler).
Setting heating programs
The heating system frost protection (see frost protection function)
applies to all heating programs.
You can select the following operating programs with the program
keys:
■ Heating and DHW
■ Only DHW
■ Standby mode
Standby mode
No DHW heating takes place in "Standby mode".
In summer, the burner is switched ON if the boiler water temperature
reaches 5 °C and is switched OFF again when the boiler water tem-
perature reaches 42 °C.

Delivered condition

■ Boiler water temperature sensor
■ Cylinder temperature sensor
■ Bag with technical documentation

6.6 Vitotronic 200, type KW4, part no. 7186 571

Specification

Construction
The control unit comprises a standard unit, electronic modules and a
programming unit.
Standard unit:
■ ON/OFF switch
■ Terminals for high limit safety cut-out test
■ Keys for emissions test function
■ Optolink laptop interface
■ Temperature controller
DIN TR 96808
or
DIN TR 116807
■ High limit safety cut-out
DIN STB 106005
or
DIN STB 98108
or
DIN STB 116907
VITOGAS
The heating circuit pump will be switched OFF from 16 March to
15 October.
From 16 October to 15 March it will then be switched ON on
demand.
Summer mode
("DHW only")
The burner starts only when the DHW cylinder needs reheating (con-
trolled by the cylinder thermostat).
The respective lower boiler water temperature of each boiler is main-
tained.
Specification
Rated voltage
Rated frequency
Rated current
Power consumption
Protection class
IP rating
Function
Permissible ambient temperature
– during operation
– during storage and transport
Rated capacity of the relay outputs
sÖ Heating circuit pump
sA Circulation pump for cylinder heat-
ing
Total sÖ, sA
fA Burner
Total
Heating system with DHW cylinder
Order the circulation pump with check valve for cylinder temperature
control separately.
■ Operation and fault displays
■ Plug connection chamber
– Connection of external equipment via a system plug
– Connection of three-phase consumers via additional contactors
Programming unit:
■ With digital time switch
■ Backlit display with plain text support
■ Adjustment and display of temperatures and codes
■ Fault message display
■ Rotary selector for the temperature in standard mode
■ Keys:
– Temperature for reduced mode
– Program selection
– Holiday program
– Party and economy mode
– DHW temperature
– Heating curves for boiler water temperature and flow temperature
– Time / Date
230 V~
50 Hz
6 A
5 W
I
IP 20 D to EN 60529;
ensure through appro-
priate design/installa-
tion
Type 1B to
EN 60 730-1
0 to +40 °C
Installation in living
spaces or boiler rooms
(standard ambient con-
ditions)
−20 to +65 °C
4(2) A 230 V~
4(2) A 230 V~
max. 4 A, 230 V~
4(2) A 230 V~
6 A 230 V~
6
VIESMANN
51