3
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Operation
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BA ROTEX HPSU compact 2 - 04/2011
10 - Display service technician required
This icon shows that the system must be checked. Get in touch with your heating specialist or nearest ROTEX contractual
partner.
11 - Display temperature set
The display shows the current temperature set for the system.
12 - Display parameter setting active
The display shows that the user is in parameter setting.
13 - Display "Function not available"
This icon is always shown if an option that has not been installed is selected or if a function is not available.
14 - Display operating mode "Start-up", "Defrost operation"
This icon shows that the operating mode defrost or start-up is active.
15 - Display refrigerant compressor active
This icon shows that the refrigerant compressor is active in the external heat pump unit.
16 - Display backup heater (BUH) switched on
The backup heater (BUH) makes additional heat available if the outside temperatures are low (high heating load).
–
: Backup heater (BUH) level 1 is connected.
–
: Backup heater (BUH) level 2 is connected.
17 - Display booster heater (BOH) is switched on
This icon shows that water heating in the integrated storage tank of HPSU compact is being supported by the booster heater
(BOH).
18 - Display circulation pump active
This icon shows that the circulation pump is switched on.
19 - Display outside temperature display active
If this icon flashes, the outside temperature is shown in the temperature display (11).
20 - Display weather dependent target temperature regulation active
This icon shows that the control automatically sets the target temperature value based on the outside temperature.
21 - Display temperature
This icon appears when the outdoor temperature or hot water temperature in the integrated storage tank is displayed on the
internal heat pump unit (HPSU compact).
The icon is also shown if the temperature target value is set in programming mode.
22 - Display test run active
This icon shows that the unit is undergoing a test run (see chapter 3.3.6).
23 - Display parameter code
This display represents the code from the parameter setting (see chapter chapter 4 "Parameter settings").
24 - Display fault code
This code refers to the fault code list in the installation manual for HPSU compact and is only used for maintenance purposes and
to remedy faults.
25 - Key operating mode "room heating", "room cooling
"
This key allows you to manually change over between cooling and heating operation. This key is inactive when a room thermostat
or wireless thermostat is connected or on devices without a cooling function and the symbol
is displayed.
