13
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.
To prevent malfunctions, ensure the ambient tempera-
ture is between 0 °C and +35 °C.
Outside temperature limits
Air/water heat pumps utilise outdoor air as the heat
source. Operation is only efficient within specified out-
door temperature limits:
■
Room heating
-20 to 40 °C
■
Room cooling
10 to 45 °C
If the temperature rises above the upper limit or falls
below the lower limit, the outdoor unit is shut down.
You will see a message about this on the heat pump
control unit.
To cover the heat demand for room heating and DHW
heating even outside the specified temperature range,
the heat pump control unit switches on the instantane-
ous heating water heater automatically.
Once the outside temperature is back within the tem-
perature limits, the heat pump is automatically ready
for operation again.
Safety zone
Your outdoor unit contains easily flammable refrigerant
in safety group A3 according to ISO 817 and ANSI/
ASHRAE Standard 34.
A safety zone is defined in the immediate vicinity of the
outdoor unit, in which special requirements apply: See
page 9.
Service link
The service link provides digital, internet based sup-
port, in which automatically selected information is
transmitted to the Viessmann service control centre,
e.g. system operating data or fault reports. Data pro-
tection information can be found under "viess-
mann.com/servicelink".
With the service link, data transfer is guaranteed for a
period of 5 years from installation of the system. The
right to subsequent use of the service link remains
reserved.
Low power radio
Low power radio is a wireless connection for data
transfer, e.g. via a remote control unit.
Your heating contractor can connect your heat genera-
tor with Viessmann accessories via low power radio.
Licence information
This product contains third party software including
software of "third party components". You are author-
ised to use this third party software subject to compli-
ance with the relevant licensing terms.
■
Licence information for the programming unit: See
page 40.
■
Licence information for the integral communication
module TCU201: See page 40.
■
Licence information for the integral communication
module TCU300: See page 42.
Introductory information
Product information (cont.)
6171827
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