Heating Systems With Heating Water Buffer Cylinder Or Low Loss Header; Outside Temperature Sensor; Specification Vitotronic 200, Type Wo1A - Viessmann VITOCAL 300-G Technical Manual

Heat pump control unit
■ Cooling curves:
The flow temperature of the secondary circuit is restricted at the
lower end of the scale by the temperature set at the electronic min-
imum temperature limiter.

Heating systems with heating water buffer cylinder or low loss header

If using hydraulic separation, fit a temperature sensor in the heating
water buffer cylinder or low loss header and connect to the heat pump
control unit.

Outside temperature sensor

Installation location:
■ North or north-western wall of the building
■ 2 to 2.5 m above the ground, for multi-storey buildings in the upper
half of the second floor
Connection:
■ 2-core lead, length max. 35 m with a cross-section of 1.5 mm
per).
■ Never route this lead immediately next to 230/400 V cables.
6 6
4 1

Specification Vitotronic 200, type WO1A

General
Rated voltage
Rated frequency
Rated current
Protection class
Permissible ambient temperature
– during operation
– during storage and transport
Setting range for the DHW temperature
Heating and cooling curves setting range
– Slope
– Level
VITOCAL 300-G
(cont.)
2 (cop-
Outside temperature in °C
35 30
0.2
0.4
0.6
0.8
1.0
1.2
1.4 1.6 1.8 2.0 2.2 2.6 3.0
Cooling curve slope
Specification
IP rating
Permissible ambient temperature during
operation, storage and transport
230 V~
50 Hz
6 A
I
0 to +40 °C
Installation in living spaces or boiler rooms (standard ambient condi-
tions)
–20 to +65 °C
10 to +70 °C
0 to 3.5
–15 to +40 K
25 20
20
15
10
5
1
3.4
IP 43 to EN 60529;
ensure through appropri-
ate design/installation
-40 to +70 °C
VIESMANN
61
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