SiBE611027_A
Interlinked Control with “Altherma”
Function and Control
14
6. Interlinked Control with “Altherma”
Outline
When the hydrobox (BA series or later) is connected and the switch for interlinked control with
"Altherma" is effective, the system checks if the operation mode on the hydrobox and the one
on the indoor unit are compatible or not. When the two operation modes are incompatible, the
operation lamp indicates the situation.
Refer to page 80 about the switch for interlinked control with "Altherma".
Detail
When the setting of the hydrobox is cooling operation, you cannot start heating operation on the
indoor unit because the operation modes are incompatible. In the same way, when the setting of
the hydrobox is other than cooling operation, you cannot start cooling operation on the indoor unit.
When the two operation modes become compatible by changing operation mode of the
hydrobox or of the indoor unit, you can start operation.
When the two operation modes are incompatible,
→
the operation lamp repeats ON (2.5 seconds) and OFF (0.5 second).
→
the operation stops or does not start.
When the two operation modes are compatible,
→
the operation lamp is ON.
→
the operation starts.
Hydrobox (BA series or later)
Indoor unit
Prohibition of heating operation
→
Cooling or fan operation is available.
Signal ON
Prohibition of cooling operation
→
Heating or fan operation is available.
Signal OFF
(Other than cooling operation)
(Cooling operation)
(R12711)
