Screed Program - Viessmann VITOCAL 300-A Installation And Service Instructions Manual

Control settings, hydraulics
Heat pump for drying buildings
For drying buildings, the heat pump
can be used in addition to the instan-
taneous heating water heater (acces-
sory).
If the heat pump is not ready for use,
this function must be set to "NO"
(delivered condition).
Press the following keys:
1. "Device settings".

Screed program

!
Please note
Risk of damage to building
through overheating screed at
high flow temperatures.
Install a temperature limiter
into the flow of the underfloor
heating circuit to limit the maxi-
mum temperature.
& The function continues after a
power failure or after the control unit
has been switched off.
&
The selected operating program
continues if the "Screed program"
has terminated in accordance with
the program or, before its expiry, the
temperature/time profile "0" is
selected.
& The temperature/time profiles 7 to
12 regulate to the maximum flow
temperature.
& The screed program affects all
enabled heating circuits in parallel.
154
2. "Programming".
3. "Internal hydraulics".
4. y/x for "HP for dry. build-
ings" (7300).
5. "YES" to enable.
6. "BACK" to confirm.
& The set temperature is limited by
parameter "Max. flow temp" for the
heating circuit, if the time profile has
been selected with a higher set flow
temperature.
& The power consumption increases
when using an instantaneous heat-
ing water heater (accessory) for dry-
ing buildings.
Note
Observe the specifications of
EN 1264-4. The report to be provided
by the heating contractor must con-
tain the following heat-up details:
& Heat-up data with respective flow
temperatures
& Max. flow temperature achieved
& Operating condition and outside
temperature during handover
Press the following keys:
1. "Device settings".
2. "Programming".