Alfa Laval AquaFirst
Installation, service and operating instruction
5
2
Operating principle
Picture 3
Picture 4
Picture 5
Picture 6
Picture 7
Picture 8
•
The primary water enters the 3 port modulating valve (1) and leaves through the fitting (2).
•
Cold water enters at bottom part (3) and leaves at the required temperature at high part (4).
•
The secondary circuit should be equipped with a recirculation or a charging pump,
•
Modules suitable for 230V 1 phase / 50 Hz + Earth,
•
Make sure power supply in the field corresponds to the above voltage,
•
A fuse protection should be provided on site.
•
Relays: Volt Free Contacts (VFCs), 2 Amps maxi, each under 230 V.