Technical data

36
CTC EcoZenith i250
General Information
8.7.4 Upper tank
(Only applies to installed heat pumps.)
Stop temp HP °C Max. (40 to 58, Max.)
At this temperature, the heat pump stops charging the
upper tank.
Start/stop diff upper °C 7 (3 to 10)
Hysteresis before the heat pump starts or stops
charging the upper tank.
Max. time upper tank, mins 20 (10 to 150)
This is the maximum time spent by the heat pump
charging the upper tank if it is needed in the lower tank.
Max.time lower tank, mins 40 (10 to 120)
This is the maximum time spent by the heat pump
charging the lower tank if it is needed in the upper tank.
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
Lower boiler kW 6 (0/6.0)
Setting for the power of the lower immersion heater, 0
and 6 kW respectively. An additional 3 kW is possible.
Contact CTC for more information.
Delay mixing valve 180 (30 to 240, blocked)
The mixing valve delay, the period before it draws
energy from the immersion heater, is set here. It can
be set from 30 to 240 minutes. If the value is set higher
than 240 mins, the mixing valve is completely blocked
from taking heat from the boiler.
Main fuse A 20.0 (10.0...35.0)
The property’s main fuse size is set here. This setting
and the fitted current sensors ensure the fuses are
protected when using appliances which generate
temporary power peaks, for example, cookers, ovens,
engine heaters, etc. The product temporarily reduces
power drawn where this type of equipment is being
used.
Input voltage 3x400 V
The value is set here to indicate whether the CTC
EcoZenith is connected at 3x400 V, 1x230 V or 3x230
V. 3x400 V and 1x230 V are valid for the UK.
Tariff, EL Off
This is used when a dual tariff is used with lower energy
costs at set hours of the day. The heat pump can then
take advantage of reduced primary energy costs. It
must be set to Off.