Vitotronic 200, Type Ho1, For Weather−Compensated Mode; Functions; Programming Unit; Frost Protection - Viessmann VITODENS 300 Datasheet

Vitotronic 200, type HO1, for weather−compensated mode
Integrated in Vitodens
H Weather−compensated, digital boiler
circuit control for Vitodens in
modulating operating mode
H With programming unit
Structure and functions
Modular construction
The control unit comprises a basic unit,
electronic modules and a programming
unit.
The control unit contains the following:
System ON/OFF switch, electronic max.
temperature limiter, temperature
controller, Optolink laptop interface,
keys for
H Program selection
H Holiday program
H Party and economy mode
H Temperature at reduced mode
H Domestic hot water temperature
H Emissions test function
and a rotary selector for temperature
selection in standard mode.
Demand−dependent heating circuit pump
and burner shutdown, adjustment of a
variable heating limit, anti−seizing pump
protection, integral diagnostic system,
maintenance display and screed function.

Functions

Vitotronic regulates the boiler water
temperature in modulating mode.
The control unit regulates the boiler water
temperature (= flow temperature of the
directly connected heating circuit) and the
flow temperature of one heating circuit
with mixer (in conjunction with the
extension kit for one heating circuit with
mixer) subject to outside temperature.
It offers cylinder temperature regulation
with priority control (heating circuit
pumps OFF , mixer closed).
An additional DHW heating function
(short−term heating to a higher
temperature) is an option.
Control characteristics
PI characteristics with modulating output.
VITODENS 300
Vitotronic 200 for weather−compensated mode
H Digital time switch for day and week
programming with four programmable
intervals each per day for reduced
mode and enabling DHW loading
H Heating system frost protection
Specification
Rated voltage: 230 V~
Rated frequency: 50 Hz
Rated current: 6 A
Safety class: I
Protection: IP X 4 D to
EN 60529
Permissible ambient
temperature
H during operation: 0 to +40 ºC
use in
living space and
boiler rooms
(standard ambient
conditions)
H during storage
20 to +65 ºC
and transport:
Electronic control
74 ºC (change
thermostat setting:
not possible)
Electronic temp.
limiter setting
81 ºC (change
(heating mode):
not possible)
Temperature limiter
100 ºC (change
setting:
not possible)
DHW temperature
setting range
H Gas fired
10 to 57 ºC
combi boiler:
H Gas fired boiler: 10 to 60 ºC
Heating curve
setting range
H Slope:
0.2 to 3.5
H Level:
13 to 40 K
H Integrated diagnostic system
H Integral cylinder thermostat
H Screed drying program
H External starting and blocking
(option with accessories)

Programming unit

H With digital time switch
H Illuminated display with plain text
support
H Display of temperatures and faults
H Coding display
H All settings and the most important
codes in plain text

Frost protection

The frost protection function is active in
all heating programs.
Frost protection will be
H started, when the outside temperature
falls below approx. +1 ºC.
During frost protection, the boiler
circuit pump will be switched ON, and
the boiler water is maintained at a
lower temperature of approx. 15 ºC.
H stopped, if the outside temperature
exceeds approx. +3 ºC.
Summer mode
Heating program w
The burner starts only when the cylinder
needs reloading or when DHW is drawn
from a combi boiler.
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