Deactivating Central Cooling - Viessmann VITOTRONIC 200 Service Instructions Manual

Heating circuits/cooling circuits
Additional condition for weather-compensated con-
trol:
■ The flow temperature is above the set flow tempera-
ture: See page 50.
Additional condition for room temperature-dependent
control:
The room temperature exceeds the set room temper-
■
ature: See page 51.

Deactivating central cooling

In the case of weather-compensated control, central
cooling is switched off under the following conditions:
One of the conditions for starting central cooling is
■
no longer met: See chapter on "Starting central cool-
ing".
or
■ The adjusted outside temperature drops below the
cooling limit by 1 K.
Operating status for central heating/cooling
Operating status Description
"Standard" The set room temperature for central heating/central cooling is the "Standard room tem-
perature 2000".
"Reduced" The set room temperature for central heating/central cooling is the "Reduced room tem-
perature 2001".
Note
Central cooling is not possible in this operating status.
"Fixd value"
■
■
■
"Standby" This operating status is active if no other operating status has been selected.
Frost protection is active: See following chapter.
Note
Central cooling is not possible in this operating status.
(cont.)
Central heating with "Max. flow temperature heating circuit 200E"
Central cooling without buffer cylinder or with heating water buffer cylinder bypass:
Central cooling with "Min. flow temperature cooling 7103"
Central cooling with heating water/coolant buffer cylinder:
Central cooling with "Min. set flow temperature, cooling 2033"
Note
If central cooling is activated, the heating circuit pump
runs constantly. For heating/cooling circuits without
mixer which are connected directly to the heat pump,
the secondary pump is on constantly.
For room temperature-dependent control or weather-
compensated control with room temperature hook-
up, central cooling is switched off under the following
conditions:
One of the conditions for starting central cooling is
■
no longer met: See chapter on "Starting central cool-
ing".
or
■ / : System with heating water/coolant buffer
cylinder (system configuration
room temperature falls below the set room tempera-
ture by 2 x "Hysteresis room temp cooling circuit
2037".
System without buffer cylinder or with heating water
buffer cylinder (system configuration
The room temperature falls below the set room tem-
perature by 2 x "Hysteresis room temp cooling
circuit 7107".
Function description
on page 49): The
2
on page 49):
1
53