Selecting the operating mode (heating and domestic hot water)
By pressing one of the keys shown below, you can select the following modes of operation:
The clock symbol is never used for heating circuit 2; here only
the current operating mode is displayed. A flashing operating
mode symbol (
,
,
) always refers to heating circuit 2. If
the operating modes (
,
,
) are the same for both heating
circuits, the corresponding symbol is shown continuously.
If, in addition, a remote control device is installed, this device will
only act on one heating circuit. An additional remote-control unit
must be installed for the second heating circuit, if required. Re-
mote control has priority only when the controller is in automatic
mode PRO 1 or 2.
Automatic mode: Heating operation and enabling/disabling the charge of domestic water is controlled according to
the time program as specified in PRO 0...2. If further time channels have been configured in PRO 0...2, they will
also be operated according to this time program.
Heating system in continuous normal operation (upper
symbol disappears from the display)
If an additional heating circuit is installed, the operator must specify whether the entry is valid for heating
circuit 1
or heating circuit 2
after pressing the
key.
This is effected by means of key
for heating circuit 1 or
for heating circuit 2.
The operating mode of the heating circuit not addressed by the entry remains unchanged.
If the
key is pressed instead of
or
, both circuits will be switched to winter operation.
Heating system in continuous reduced operation (upper
symbol disappears from the display)
If an additional heating circuit is installed, the operator must specify whether the entry is valid for heating
circuit 1
or heating circuit 2
after pressing the
key.
This is effected by means of key
for heating circuit 1 or
heating circuit 2.
The operating mode of the heating circuit not addressed by the entry remains unchanged.
If the key
is pressed instead of
or
, both circuits will be switched to winter operation.
Heating continuously switched off (upper
symbol disappears from the display). The frost protection function
will reliably prevent damage to the heating system when outdoor temperature drops below freezing point.
If an additional heating circuit is installed, the operator must specify whether the entry is valid for heating
circuit 1
or heating circuit 2
after pressing the
key.
This is effected by means of key
for heating circuit 1 or
for heating circuit 2.
The operating mode of the heating circuit not addressed by the entry remains unchanged.
If the
key is pressed instead of
or
, both circuits will be switched to summer operation.
Single immediate charging of the domestic-hot-water-tank. This is also possible during periods in which the hot
water system is disabled if the domestic-hot-water-temperature lies below the setpoint (SERV 90).
Domestic-hot-water charging continuously disabled (lower
symbol disappears from the display) or
interruption of single immediate charging.
1
2
1
2
1
1
2
2
1
2
1
1
2
2
1
2
1
1
2
1
0
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7 000458 003
