Technical data

121
CTC EcoZenith i550 Pro
For the installer
A1 Display
A2 Relay/main card
A3 Expansion card
B1 Primary flow sensor 1
B2 Primary flow sensor 2
B3 Primary flow sensor 3
B5 Temp Upper tank sensor
B6 Temp Lower tank sensor
B7 Return sensor
B8 Flue gas sensor
B9 Sensor wood boiler
B11 Inner sensor 1
B12 Inner sensor 2
B13 Inner sensor 3
B15 Outdoor sensors
B17 Sensor external boiler
B30 Solar panel sensor In
B31 Solar panel sensor Out
B32 Solar panel sensor charging
B33 Temp solar coil tank
B41 Sensor, external storage tank upper
B42 Sensor, external storage tank lower
B43 Sensor external hot water tank
B50 Sensor pool
E13 Backup heating thermostat E13
F1 Automatic circuit breaker
F2 Automatic circuit breaker
F10 Max thermostat
G1 Radiator pump 1
G2 Radiator pump 2
G3 Radiator pump 3
G6 Circulation pump flue gas
G11 Charge pump 1
G12 Charge pump 2
G13 Charge pump 3
G30 Circulation pump, solar collector
G31 Pump, recharging bore hole
G32 Pump, plate heat exchanger – solar
energy
G40 Circulation pump for hot water coil
G41 Circulation pump external DHW tank
G43 Circulation pump, external storage tank
charging
G44 Circulation pump, external boiler
G45 Circulation pump, external storage tank
discharging
G50/G51 Circulation pump, pool heating
K1 Contactor 1
K2 Contactor 2
K3 Contactor 3
K4 Contactor 4
K20 Night red/circulation/extra DHW
X1 Terminal block
X10 Terminal block
Y1 Mixing valve 1
Y2 Mixing valve 2
Y3 Mixing valve 3
Y21 Diverting valve, heat pump in/out
Y31 Diverting valve solar
Y40 Diverting valve external buffer tank
19. Parts list Wiring diagram