4
B2*
Press switch brine
B3*
Hot water thermostat
B4*
Swimming pool water thermostat
E9
Flange heater for hot water
E10* Heat generator 2 (boiler or immersion heater)
F1
Control fuse N1 5x20 / 2.0 A slow-acting
F2
Load fuse for plug-in terminals J12 and J13 5 x 20 /
4.0 A slow-acting
F3
Load fuse for plug-in terminals J15 to J18 5 x 20 /
4.0 A slow-acting
H5* Remote fault indicator lamp
J1
Control unit power supply connection
(24 V AC / 50 Hz)
J2
Connection for hot water sensor, return flow sensor and
external sensor
J3
Input for HP code and flow sensor via
control line plug connector X8
J4
0-10 V DC output for controlling the frequency
converter, remote fault indicator, and swimming pool
circulating pump
J5
Connection for hot water thermostat, swimming pool
thermostat and utility block functions
J6
Connection for the heating circuit 2 sensor and defrost end
sensor
J7
Connection for "low-pressure brine" alarm message
J8
230 V AC input and outputs for controlling the HP
control line plug connector X11
J9
Socket not used
J10
Socket for connecting the remote control (6-pole)
J11
Connection not used
J12 to
J18
230 V AC outputs for controlling the system
components (pump, mixer, heating element, solenoid
valve, boiler)
K9
230 V/ 24 V coupling relay
K11* Electron. relay for remote fault indicator
Fig. 4.2:
Circuit diagram of the wall-mounted heat pump manager
E-8
K12* Electron. relay for swimming pool water circulating pump
K20* Contactor for heat exchanger 2
K21* Contactor for electrical flange heater for hot water
K22* Utility blocking contactor (EBC)
K23* Auxiliary relay for disable contactor (SPR)
M11* Primary pump
M13* Heat circulating pump
M15* Heat circulating pump of heating circuit 2
M16* Auxiliary circulating pump
M18* Hot water circulating pump
M19* Swimming pool water circulating pump
M21* Mixer for main circuit (bivalent system) or heating circuit 3
M22* Mixer for heating circuit 2
N1
Control unit
N10 Remote control
N11 Relay module
R1
External temperature sensor
R2
Return flow sensor
R3
Hot water sensor
R5
Sensor for heating circuit 2
R9
Flow sensor
R12 Defrost end sensor
R13 Sensor for heating circuit 3/bivalent-regenerative
T1
230 / 24 V AC / 28 VA safety transformer
X1
Terminal strip - supply connection, N and PE distribution
board
X2
24 V AC distribution board terminal
X3
Distribution board terminal - ground
X8
Control line plug connector (extra-low voltage)
X11 230 V AC control line plug connector
Abbreviations:
MA
Mixer "OPEN"
MZ
Mixer "CLOSED"
*) Components must be supplied by the customer