Daikin GCU compact Series Installation And Operating Instructions Manual page 75

P Circulation pump (optional)
Z
3UVB1 3-way mixer valve
3UV DHW 3-way distribution valve
AUX Output for special functions
RoCon U1 Room station (optional)
RoCon M1 Mixer circuit control (optional)
FLS Flow sensor (boiler circuit)
EXT Input for external operating mode switching
EBA Floating switch contact for external heat request
t Inflow temperature sensor (boiler circuit)
V1
t Internal mixer sensor = inflow temperature sensor (heating
V2
circuit)
t Return flow temperature sensor
R2
t Outside temperature sensor
AU
t Storage tank temperature sensor
DHW
RT/RT-E Room thermostat (optional)
STBK Safety temperature limiter
RoCon BE1 Circuit board
RJ45 CAN BUS – control panel connection
S3 DIP switch (device type)
S5 DIP switch (1=on; 2,3,4=off)
RoCon B1 Control panel
DS Pressure sensor
P Heating circulation pump
K
PWM (P ) Speed controller for PK
K
Q Device main switch
1
F Fuse
1
EL1 Ignition electrode
EL2 Ionisation electrode
STBK Safety temperature limiter
Burner blower mains connection
BF
BF-PWM Burner blower speed regulation
GMV Voltage supply for gas solenoid valve
GPV Voltage supply for plunger coil
TRA1 Ignition transformer
CM 434 Automatic combustion control
J1
3-pin circuit board connector with mains pump cable
J2 4-pin circuit board connector: Connection of 3-way mixer
valve 3UVB1
J3 6-pin circuit board connector (AUX connection for special
functions)
J4 3-pin circuit board connector (not occupied)
J5 3-pin circuit board connector with pressure sensor cable
J6 4-pin circuit board connector with clamped mains cable and
earthing slots
J7 2-pin circuit board connector with PWM signal cable for ex-
ternal heating circulation pump
J8 12-pin circuit board connector for connecting sensors and
control lines
J9 5-pin circuit board connector (not assigned)
J10 3-pin circuit board connector with mains cable for combus-
tion control CM 434
J11 5-pin circuit board connector with communication cable for
combustion control CM 434
J12 4-pin circuit board connector: Connection of 3-way distribu-
tion valve 3UV DHW
J13 4-pin circuit board connector for connection of additional
controller components (CAN bus)
J14 3-pin circuit board connector for clamping a circulation
pump
J15 4-pin circuit board connector with switch cable
J16 4-pin circuit board connector for connection of a room ther-
mostat (digital request contact)
Mains voltage 230 V, 50 Hz
Gas Combi Unit
Floor-standing gas condensing boiler with integrated heat storage
008.1543899_02 – 04/2019 – EN
12 Technical data
Installation and operating instructions
75