16
2
3
Connecting domestic hot water pump
This operation shall be performed by a person with necessary
qualifications to perform electric installation works.
The pump used to charge the household hot water tank shall be
connected
to the socket (Fig. 4.) identified as “
Pompa cwu
”, using a cable with cross-
section
of at least 3x0.75mm
2
using suitable socket (included). The household
hot water tank’s temp. sensor
shall be connected to the socket located
above the power supply socket.
Fig.4. Tech ST-81 controller – rear view.
1. Power supply socket
2. Hot household water
pump socket
3. Household hot water
temperature sensor
socket
4. Central heating pump
socket
5. Fuse
1
3
4
5
2
