Viessmann Vitotronic 200 Operating Instructions Manual page 11

Appliance description
Vitovent 300-W meets the requirements for passive
house use.
This ventilation unit is mounted on a wall.
Permissible ambient temperatures in the installation room
!
Please note
The appliance may develop faults if it is oper-
ated outside the specified temperature ranges.
Ensure that the specified temperature range is
maintained in the installation room.
Appliance
Heat pumps installed inside the building
Brine/water and water/water heat pumps including heat pump control unit
■
Vitocal 200-A air/water heat pump including heat pump control unit
■
Indoor units of air/water heat pumps with separate indoor/outdoor units
■
All other air/water heat pumps including heat pump control unit
■
Heat pump control units fitted inside the building
Separate heat pump control units of air/water heat pumps for outdoor instal-
■
lation
Central ventilation units
All types
■
Outside temperature limits for air/water heat pumps
Air/water heat pumps utilise outdoor air as the heat
source. They only operate efficiently within certain out-
side temperature limits, e.g. between
+35 °C. If the outdoor air exceeds the upper tempera-
ture limit or falls below the lower temperature limit,
these heat pumps temporarily shut down. You will see
a message about this on the heat pump control unit.
In order to meet the heat demand for central heating
and DHW heating outside the temperature limits, the
heat pump control unit automatically switches on the
available auxiliary heaters as required, e.g. electric
booster heater.
Temperature limits for brine/water heat pumps and water/water heat pumps
With brine/water heat pumps and water/water heat
pumps, the heat is transferred to the heat pump via the
heat transfer medium (brine). As heat sources, the
ground and groundwater remain at an almost constant
temperature level throughout the year. It is therefore
extremely unlikely that the permissible temperature
limits for brine entry into the heat pump will be excee-
ded or undershot.
(cont.)
20 °C and
–
To ensure good air quality in your building, the ventila-
tion unit adjusts the air changes automatically, depend-
ing on the relative humidity and/or carbon dioxide con-
centration in your rooms (accessories required).
Ambient temperature
Min.
/
Note
You must enable electric booster heaters for heat gen-
eration: see page 37.
Once the outside temperature is back within the tem-
perature limits, the heat pump is automatically ready
for operation again.
If your brine/water heat pump or water/water heat
pump shuts down due to excessively high or low brine
inlet temperatures, there may be a fault. You will see a
message about this on the heat pump control unit. In
such cases, inform your local contractor.
Introductory information
Max.
0 °C 35 °C
5 °C 30 °C
0 °C 35 °C
0 °C 35 °C
0 °C 35 °C
2 °C 35 °C
11