OPERATION
Fault message
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Cooling and DHW heating
As soon as a DHW or swimming pool water heating demand is
issued, cooling mode is interrupted, and DHW or swimming pool
water heating begins.
5.4.5 SOLAR
As soon as solar mode is set to ON, parameters MAXIMUM CYL-
INDER TEMP and SOLAR DIFFERENTIAL can be set. Sensor 1 is the
bottom DHW sensor (KTY) and sensor 2 is the collector sensor
(PT 1000).
The temperature differential measured by the two sensors is re-
corded and compared with the set temperature differential (SOLAR
DIFFERENTIAL parameter). If the captured differential exceeds the
set differential, the solar circuit pump is switched on. As soon as
the actual value falls below the set value minus a hysteresis of 1.5
K, the solar circuit pump stops again.
In addition, the controller has an adjustable maximum cylinder
limit (MAX CYLINDER TEMP parameter). If this temperature is
reached at the bottom cylinder sensor, the solar circuit pump will
also stop.
6. Fault message
If the appliance registers a fault, this is clearly displayed with the
message shown below.
COMFORT MODE
!
FAULT
SENSOR BREAK E 71
TUESDAY 25JUN 14 16:27 TIME
If more than one fault occurs, the most recent fault is always
shown. Notify your qualified contractor.
7. Maintenance and care
!
Appliance and system damage
Maintenance work, such as checking the electrical safety,
must only be carried out by a qualified contractor.
A damp cloth is all you need to care for the plastic parts. Never
use abrasive or corrosive cleaning agents.
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