Technical data
41 CTC EcoZenith i250
General Information
HP Brine pump/Fan.
Brine pump On/Off. Activation of the fan or brine pump.
EcoAir: the fan can be adjusted 0-100%
HP Charge pump
Charge pump On/Off. Function test 0-100%.
Manual defrosting (Only applies to CTC EcoAir)
Manual defrosting function test On/Off
Compressor heater (Only applies to CTC EcoAir)
Compressor heater function test On/Off .
Heater condensation tray (Only applies to CTC
EcoAir)
Heater condensation tray function test On/Off .
Heating cable (Only applies to CTC EcoAir)
Heating cable function test. (Accessory) On/Off
4-way valve (Only applies to CTC EcoAir)
4-way valve function test On/Off .
Valves
Function test carried out on the flow conditioner. This
involves testing the flow Up or Down (upper and lower
parts of the tank respectively).
Alarm log
You can use this to read information about the latest
alarms. The latest alarm is displayed at the top and the
four latest alarms are shown under Stored alarms.
An alarm which reoccurs within an hour is ignored so
as not to fill up the log. If all the alarms are the same,
this can indicate that there is an intermittent fault, e.g. a
loose contact.
1 2
1 2
T ºC
60
40
20
0
-20
16 20 0 4 8 12
Room temp.
Heating circuit 1
Night reduction Holiday
Room temp.
Heating circuit 1 (50)
Night reduction Holiday
Heat pump
Compressor Permitted
Min outdoor temp °C -15
Brine pump on 10 days 0
Tariff HP Off
Minimum run time 6
Electric heater
Boiler upper°C 50
Boiler upper add°C 57
Boiler upper extra DHW°C 60
Boiler upper max kW 5.5
Boiler lower °C 55
Boiler lower max kW 6.0
Delay mixing valve 180
Main fuse A 25
Input voltage 3x400 V
Upper tank
Stop temp HP°C Max
Start/stop diff upper ºC 7
Max time upper tank 20
Max time lower tank 40
Communication
MB address 1
Baud rate 9600
Parity even
Stop bit 1
Save settings
Save settings?
Def Heat pump
Heat pump Off
Flow/level switch None
Test Heating circuit
Mixing valve1 Open
Rad pump1 On
Mixing valve2 Off
Rad pump2 Off
LED room sensor On
Test valves
Test Elec.heater
3-way valve Down
Electric heater L1A Off
Electric heater L1B Off
Electric heater L2A Off
Electric heater L2B Off
Electric heater L3A Off
Electric heater L3B Off
Electric heater A13 Off
Alarm log
Latest alarm: Time HP (b) LP (b) SH (K) I(A)
Low brine flow 07:20 6/3 8.8 3.3 15.9 3.9
Stored alarms:
Wrong phase order 10:30 1/3 27.9 8.6 -227 50.0
Comm. error motor protect 09:01 1/3 27.9 3.6 42.2
0.0
Factory settings coded
Code 0 0 0 0
Upper tank
Lower tank
Compressor operation
Expansion valve
Log compressor stop
Operation data heating 2
Out Room1 Prim1 Return Room2 Prim2
Test Heat pump
HP Compr. Off
HP Brine p/Fan Off
HP Charge p 0
Defrost Manually Off
Compressor heat Off
Drip tray heater Off
Heating Cable Off
4-way valve(Y11) Off
1 2
1 2
T ºC
60
40
20
0
-20
16 20 0 4 8 12
Room temp.
Heating circuit 1
Night reduction Holiday
Room temp.
Heating circuit 1 (50)
Night reduction Holiday
Heat pump
Compressor Permitted
Min outdoor temp °C -15
Brine pump on 10 days 0
Tariff HP Off
Minimum run time 6
Electric heater
Boiler upper°C 50
Boiler upper add°C 57
Boiler upper extra DHW°C 60
Boiler upper max kW 5.5
Boiler lower °C 55
Boiler lower max kW 6.0
Delay mixing valve 180
Main fuse A 25
Input voltage 3x400 V
Upper tank
Stop temp HP°C Max
Start/stop diff upper ºC 7
Max time upper tank 20
Max time lower tank 40
Communication
MB address 1
Baud rate 9600
Parity even
Stop bit 1
Save settings
Save settings?
Def Heat pump
Heat pump Off
Flow/level switch None
Test Heating circuit
Mixing valve1 Open
Rad pump1 On
Mixing valve2 Off
Rad pump2 Off
LED room sensor On
Test valves
Test Elec.heater
3-way valve Down
Electric heater L1A Off
Electric heater L1B Off
Electric heater L2A Off
Electric heater L2B Off
Electric heater L3A Off
Electric heater L3B Off
Electric heater A13 Off
Alarm log
Latest alarm: Time HP (b) LP (b) SH (K) I(A)
Low brine flow 07:20 6/3 8.8 3.3 15.9 3.9
Stored alarms:
Wrong phase order 10:30 1/3 27.9 8.6 -227 50.0
Comm. error motor protect 09:01 1/3 27.9 3.6 42.2
0.0
Factory settings coded
Code 0 0 0 0
Upper tank
Lower tank
Compressor operation
Expansion valve
Log compressor stop
Operation data heating 2
Out Room1 Prim1 Return Room2 Prim2
Test Heat pump
HP Compr. Off
HP Brine p/Fan Off
HP Charge p 0
Defrost Manually Off
Compressor heat Off
Drip tray heater Off
Heating Cable Off
4-way valve(Y11) Off
1 2
1 2
T ºC
60
40
20
0
-20
16 20 0 4 8 12
Room temp.
Heating circuit 1
Night reduction Holiday
Room temp.
Heating circuit 1 (50)
Night reduction Holiday
Heat pump
Compressor Permitted
Min outdoor temp °C -15
Brine pump on 10 days 0
Tariff HP Off
Minimum run time 6
Electric heater
Boiler upper°C 50
Boiler upper add°C 57
Boiler upper extra DHW°C 60
Boiler upper max kW 5.5
Boiler lower °C 55
Boiler lower max kW 6.0
Delay mixing valve 180
Main fuse A 25
Input voltage 3x400 V
Upper tank
Stop temp HP°C Max
Start/stop diff upper ºC 7
Max time upper tank 20
Max time lower tank 40
Communication
MB address 1
Baud rate 9600
Parity even
Stop bit 1
Save settings
Save settings?
Def Heat pump
Heat pump Off
Flow/level switch None
Test Heating circuit
Mixing valve1 Open
Rad pump1 On
Mixing valve2 Off
Rad pump2 Off
LED room sensor On
Test valves
Test Elec.heater
3-way valve Down
Electric heater L1A Off
Electric heater L1B Off
Electric heater L2A Off
Electric heater L2B Off
Electric heater L3A Off
Electric heater L3B Off
Electric heater A13 Off
Alarm log
Latest alarm: Time HP (b) LP (b) SH (K) I(A)
Low brine flow 07:20 6/3 8.8 3.3 15.9 3.9
Stored alarms:
Wrong phase order 10:30 1/3 27.9 8.6 -227 50.0
Comm. error motor protect 09:01 1/3 27.9 3.6 42.2
0.0
Factory settings coded
Code 0 0 0 0
Upper tank
Lower tank
Compressor operation
Expansion valve
Log compressor stop
Operation data heating 2
Out Room1 Prim1 Return Room2 Prim2
Test Heat pump
HP Compr. Off
HP Brine p/Fan Off
HP Charge p 0
Defrost Manually Off
Compressor heat Off
Drip tray heater Off
Heating Cable Off
4-way valve(Y11) Off
1 2
1 2
T ºC
60
40
20
0
-20
16 20 0 4 8 12
Room temp.
Heating circuit 1
Night reduction Holiday
Room temp.
Heating circuit 1 (50)
Night reduction Holiday
Heat pump
Compressor Permitted
Min outdoor temp °C -15
Brine pump on 10 days 0
Tariff HP Off
Minimum run time 6
Electric heater
Boiler upper°C 50
Boiler upper add°C 57
Boiler upper extra DHW°C 60
Boiler upper max kW 5.5
Boiler lower °C 55
Boiler lower max kW 6.0
Delay mixing valve 180
Main fuse A 25
Input voltage 3x400 V
Upper tank
Stop temp HP°C Max
Start/stop diff upper ºC 7
Max time upper tank 20
Max time lower tank 40
Communication
MB address 1
Baud rate 9600
Parity even
Stop bit 1
Save settings
Save settings?
Def Heat pump
Heat pump Off
Flow/level switch None
Test Heating circuit
Mixing valve1 Open
Rad pump1 On
Mixing valve2 Off
Rad pump2 Off
LED room sensor On
Test valves
Test Elec.heater
3-way valve Down
Electric heater L1A Off
Electric heater L1B Off
Electric heater L2A Off
Electric heater L2B Off
Electric heater L3A Off
Electric heater L3B Off
Electric heater A13 Off
Alarm log
Latest alarm: Time HP (b) LP (b) SH (K) I(A)
Low brine flow 07:20 6/3 8.8 3.3 15.9 3.9
Stored alarms:
Wrong phase order 10:30 1/3 27.9 8.6 -227 50.0
Comm. error motor protect 09:01 1/3 27.9 3.6 42.2
0.0
Factory settings coded
Code 0 0 0 0
Upper tank
Lower tank
Compressor operation
Expansion valve
Log compressor stop
Operation data heating 2
Out Room1 Prim1 Return Room2 Prim2
Test Heat pump
HP Compr. Off
HP Brine p/Fan Off
HP Charge p 0
Defrost Manually Off
Compressor heat Off
Drip tray heater Off
Heating Cable Off
4-way valve(Y11) Off
Immersion heater
You use this function to test the immersion heater’s
phases: L1, L2 and L3.
The modes available are On/Off