Changing Sensors - Daikin GCU compact Series Installation And Operating Instructions Manual

6 Controller and electronic components
Fig. 6-2 Removing/installing the control panel
A Front view
B Rear view
1 Control panel for the RoCon B1
2 Plug connection for communication cable
3 Communication cable
6.3

Changing sensors

Most internal sensors (Fig. 6-3) can be replaced without having to
open the controller housing.
To remove the thermal insulation, see
DANGER: RISK OF ELECTROCUTION
Touching live parts can result in electric shock and lead to
potentially fatal injuries and burns.
▪ Before beginning work on the GCU compact, disconnect
it from the power supply (fuse, switch off the main
switch) and secure against unintentional restart.
Installation and operating instructions
42
Chap. 4.4.3.
Fig. 6-3 Position of sensors and motors on the boiler
t Inflow temperature sensor (boiler circuit)
V1
t Internal mixer sensor = inflow temperature sensor (heating
V2
circuit)
t Return flow temperature sensor (boiler circuit)
R
22 Heating circulation pump
23 Burner fan
DS Pressure sensor
FLS (V1) FlowSensor
STBK Safety temperature limiter
3UV DHW 3-way distribution valve
3UVB1 3-way mixer valve
Floor-standing gas condensing boiler with integrated heat storage
Gas Combi Unit
008.1543899_02 – 04/2019 – EN