Viessmann Vitocal 300-G BW, Installation And Service Instructions Manual

Page: 153 / 216

153
Parameter
■ 7300
This setting determines whether the heat
pump is used to dry the building as well
as the instantaneous heating water
heater.
This function must be set to " NO " if the
heat pump is not ready for operation
because the heat pump primary circuit is
not ready when building drying takes
place.
Access
■ " Device settings "
■ " Programming "
■ " Internal hydraulics "
■
y
to " HP for dry. building "
■ "YES" or "NO"
Standard setting No
Setting range Yes/No
Screed program
Parameter
■ 7303
!
Please note
Risk of damage to building
through overheating screed at
high flow temperatures.
Prevent high flow temperatures
through a temperature limiter as
maximum limiter for underfloor
heating systems.
Note
Observe the specifications of
EN 1264-4. The report to be provided by
the heating contractor must contain the
following heat-up details:
■ Heat-up data with respective flow tem-
peratures
■ Max. flow temperature achieved
■ Operating condition and outside tem-
perature during handover
■ The function continues after a power
failure or after the control unit has
been switched OFF.
■ The selected operating program con-
tinues, if the " Screed program " has
terminated in accordance with the pro-
gram or, before its expiry, the temper-
ature/time profile "
0 " is selected.
■ The temperature/time profiles 7 to 12
regulate to the maximum flow temper-
ature.
■ The screed program affects all ena-
bled heating circuits in parallel.
■ The set temperature is limited by
parameter "Max. flow temp." for the
heating circuit, even if the time profile
has been selected with a higher set
flow temperature.
Control settings, hydraulics
Heat pump for drying buildings
5368 522 UAE
Service