Wiring Diagram For Models 3-035 Ak And 3-050 Ak; Main Board - Saunier Duval 3-035 AK Manuel D'installation

5- WIRING

5.3- WIRING DIAGRAM FOR MODELS 3-035 AK AND 3-050 AK

VALVE
Notes:
CN13: this connector allows the reception of error codes from the chiller - if it has the possibility - when the fancoil
is connected to an outdoor unit.
CN17: this connector allows the starting/stop of the fancoil through an external contact ON/OFF, if switch SW3 is
ON.
Switch SW2: activates the ANTI-HOT function, in cooling and dry mode, when the fancoil is stopped by thermostat
and the 3-way valve is closed.

MAIN BOARD

POWER
T2 Cº
25 Cº
OFF
22 Cº
Low speed
Setting speed
16
TO WIRE CONTROL
WIRING DIAGRAM
CODE PART NAME
CAP 1 Fan capacitor
CN 1-20 PC Board sockets
TRANS Power transformer
FAN1 Fan motor
K3 Water level switch
M Swing Motor
PUMP Pump
T1 Room temperature
T2-C Pipe temperature
XS1~6 Connectors
XT1~6 Connectors
XT1 7-Way terminal
23 Cº
20 Cº