Calling Up The Parameter Group - Viessmann VITOTRONIC 200 Service Instructions Manual

Calling up the parameter group

1. Service menu:
Press OK + simultaneously and hold for
å
approx. 4 s.
2. "Coding level 1"
7300 Heat pump for drying a building
Enabling the heat pump for screed drying.
Due to the high energy demand during screed drying,
the heat pump is frequently used in conjunction with an
instantaneous heating water heater. This leads to high
power consumption.
For this reason, ensure screed drying is covered by
the heat pump as much as possible. Possibly leave
booster heaters, such as an instantaneous heating
water heater, disabled at this stage.
:
■ If the heat pump is not ready for use (e.g. primary
circuit is not yet completed), set this function to "0"
(delivered condition).
Observe probe loading if the heat pump is used for
■
screed drying.
7303 Time program for screed drying
Temperature/time profile for screed drying (CH: Drying
the sub-floor).
!
Please note
High flow temperatures in the underfloor heating
circuit lead to the screed being overheated and
to building damage.
Install a temperature limiter in the flow of the
underfloor heating circuit to limit the maximum
temperature.
■ "Time program for screed drying 7303" affects all
heating circuits in parallel.
■ "Heat pump for drying a building 7300" must be
set to "1" in order for the heat pump to be switched
on for screed drying.
After a temperature/time profile has been selected,
■
screed drying immediately starts with the set flow
temperature for day 1. "Screed drying" is displayed
in the standard menu. On the following day, the set
flow temperature for day 1 is set again.
Parameter "Screed program start day 7378" can
■
be used to set the position of the start day within the
temperature/time profile.
■ Parameter "Screed program end day 7379" can be
used to set the position of the last day of the screed
drying program within the temperature/time profile.
Parameter group Internal hydraulics
3. "Internal hydraulics"
4. Select parameter.
!
Note
If a ventilation unit is connected to the heat pump con-
trol unit, "Intensive operation" is started automati-
cally.
Value Meaning
"0" Heat pump is not used for screed drying.
"1" Heat pump is used for screed drying.
!
■ The screed drying program lasts a maximum of
31 days, plus the remaining hours of the start day.
The remaining number of days for screed drying can
also be checked ("Screed drying days"). A maxi-
mum of 32 days are displayed for screed drying.
"Vitotronic 200" operating instructions
■ The selected temperature/time profile continues fol-
lowing a power failure or after the heat pump control
unit has been switched off and on again.
If the temperature/time profile has been completed or
■
if it has been cancelled via temperature/time profile
"0", the heat pump continues with the operating pro-
gram previously set.
■ Temperature/time profiles 7 to 12 regulate to the
maximum flow temperature.
The set flow temperature of the heating circuit is limi-
■
ted to "Max. flow temperature heating circuit
200E", even if the temperature/time profile gives a
higher value.
■ Power consumption increases if the instantaneous
heating water heater is started to provide screed dry-
ing.
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