Technical data
35 CTC EcoZenith i250
General Information
Inclination (default setting) 50(25...85)
Inclination means the temperature your property needs
at different outdoor temperatures. See more detailed
information about this in the chapter on Your property’s
heating installation. The value set corresponds to
the temperature of the radiators when the outdoor
temperature is -15ºC. After this default setting, fine
adjustment takes place in the “Room temperature”
menu.
Adjustment 0 (-20...20)
The curve adjustment means that the temperature
level can generally be raised or lowered at all outdoor
temperatures. After this default setting, fine adjustment
takes place in the “Room temperature” menu.
Room temp. reduced -2 (0...-40)
“Room temp. reduced” is displayed if a room sensor is
installed.
You define here how many degrees the room
temperature will be reduced by during the various
scheduled reduction periods, e.g. Night reduction,
Holiday, etc.
Prim reduced
-3 (0...-40)
If there is no room sensor installed, “Prim reduced” is
displayed instead.
Example:
Room temp red -2 means that the room temperature is
reduced by 2 °C from its normal temperature.
Example:
As a general rule, a Prim reduced value of 3-4 °C is
equivalent to a 1 °C reduction in room temperature in a
normal system.
1 2
1 2
T ºC
60
40
20
0
-20
16 20 0 4 8 12
Radiatorsystem forts
58 ºC -5 ºC
Info golvtorkning estricht
Room temp.
Heating circuit 1
Night reduction Holiday
Room temp.
Heating circuit 1 (50)
Night reduction Holiday
Set. heat pump
Compressor Permitted
1
Min outdoor temp °C -15
2
Brine pump on Auto
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
Tariff EL Off
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
Installer
Save settings
Save settings
Load factory 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
Com. err m. 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
Cooling
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
Inst. Radiatorsystem1
<<
Anti Water Hammer No
HP max DHW Yes
Drying period mode Off
Drying period temp ºC 25
Room temp. DHW Operation Installer
Drying period activ 1 / 12 (25)
CTC EcoZenith Monday 09:35
Exact primary flow No (No/Yes)
Exact primary flow means that the heat pump never
switches over and heats the upper tank (hot water
charging). This is provided solely by the electric heater.
In summer mode however, i.e. if the outdoor
temperature is above the limit (Heating off, outside), the
heat pump will be allowed to send water to the upper
tank.
DHW increase Yes (Yes/No)
When exact primary flow has been selected the “DHW
increase” function opens.
Yes means that the heat pump will follow the
temperature of the radiators for three start-ups. When
the heat pump performs start-up no. 4 the heat
pump works until it achieves “maximum heat pump
temperature”. This is also termed “full condensation”.
No means that the heat pump will always follow the
temperature of the radiators.