PNI CT440 Manual Del Usuario página 10

1: 230 V AC (permanent) supply voltage
Zone 1,2,3,4 : 230 V for each area controlled by pumps, valves,
distribution boxes
5: COM-NO - Non-energized relay - for the heating boiler
(heating boiler with input command compatible with non-
energized relay COM - NO)
User manual
Zone 1 N
Zone 1 L
N: Permanent neutral (230V)
L: Permanent Live (230V)
Zone 4 N
Zone 4 L
Zone 3 N
Zone 3 L
Zone 2 N
Zone 2 L
10
Voltage-free
output