Technical data

65
CTC EcoZenith i550 Pro
For the property owner
9.5.2.10 External buffer
Settings for the external buffer tank are made in this
menu.
The buffer tank is charged from the lower tank of the
EcoZenith but can be recharged in both the upper and
the lower tanks.
dT lower ext °C 7 (3...30)
The temperature difference between the lower tank of
the EcoZenith and the lower part of the external buffer
tank which controls the conditions for starting the
transfer from the EcoZenith to the external buffer tank.
This setting applies to charging of solar energy when a
heating need is present on the radiator system.
dT start upper °C 7 (3...30)
The temperature difference between the upper tank
of the EcoZenith and the upper part of the external
buffer tank which controls the conditions for starting the
recharging from the external buffer tank to the upper
tank in the EcoZenith.
dT stop upper °C 3 (1...30)
The temperature difference between the upper tank of
the EcoZenith and the upper part of the external buffer
tank which controls the conditions for stopping the
recharging from the external buffer tank to the upper
tank in the EcoZenith.
Charge start lower °C 80 (60...90)
The temperature in the lower tank of the EcoZenith
at which transfer to the external buffer tank should
start. This menu applies to wood operation or to solar
charging when no heating need is present on the
radiator system.
dT start lower °C 7 (3...30)
The temperature difference between the lower tank of
the EcoZenith and the external buffer tank which controls
the conditions for starting the recharging from the
external buffer tank to the lower tank in the EcoZenith.
dT stop lower °C 3 (1...30)
The temperature difference between the lower tank of
the EcoZenith and the external buffer tank which controls
the conditions for stopping the recharging from the
external buffer tank to the lower tank in the EcoZenith.
dT setpoint lower °C 7 (2...50)
Setting of the number of degrees by which the lower
tank of the EcoZenith must exceed its reference value
to start transfer to the external buffer tank. This setting
applies to charging of solar energy when a heating need
is present on the radiator system.
06-07 00-00 00-00
06-07 00-00 00-00
06-07 00-00 00-00
06-07 00-00 00-00
06-07 00-00 00-00
07-08 00-00 00-00
07-08 00-00 00-00
06-09 00-00
06-09 00-00
06-09 00-00
06-09 00-00
06-09 00-00
03-09 00-00
06-09 00-00
Elec. heater
Upper el.heater(s) kW 9
Lower el.heater kW 9
Lower el.heater °C 50
Delay mixing valve 180
Main fuse A 60
Conversion factor curr. sensors 1:1
Tariff, EL No
Upper tank
Stop temp HP °C 55
Start/stop diff °C 5
Extra DHW stop temp °C 60
Max time upper tank 20
Max time lower tank 40
Min temp °C 45
Add heat upper tank °C 55
Periodic extra DHW, days 14
Max temp diff end DHW °C 3
Stop DHW diff max 3
Run time DHW circ. 4
Time DHW circ 15
Diff start ext DHW buffer 5
Timer DHW circulation
Timer DHW circulation
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Lower tank
Tank max. °C 55
Tank min. °C 25
Diff. tank vs primary °C 0
Start/stop diff tank °C 5
Timer setpoint 50
Timer lower tank
Timer lower tank
Solar panels
dT max solar °C 7
dT min solar °C 3
Min speed pump % 30
Max lower tank °C 85
Max temp brine °C 18
dT max ground °C 60
dT min ground °C 30
Solar test tank min 4
Test frequency min 30
Winter mode Off
Protection collector
Wood boiler
Start at fl ue gas temp °C 100
Ext Boiler
Ext boiler diff °C 5
Minimum temp ext. boiler ° C 30
Delay. Charge pump (min) 0
Delay. Stop ext. boiler (min) 0
Priority Low
Delay priority low 120
External buffer
dT lower ext °C 7
dT start upper °C 7
dT stop upper °C 3
Charge start lower °C 80
dT start lower °C 7
dT stop lower °C 3
dT setpoint lower °C 7
HP charging
Pool
Pool temp °C 22.0
Pool diff. °C 1.0
Pool prio. °C Low
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Weekly program Off/Setpoint