
28
26
1
2
4
3
5
INS
TALLER
US
ER
MAINTEN
AN
CE
TECHNI
CI
AN
TECHNI
CAL
D
AT
A
Key:
M30-1.1 - Portion valve 1 of zone
M30-1.2 - Portion valve 2 of zone
M30-1.3 - Portion valve 3 of zone
S20-2 - Room thermostat zone 2
S20-3 - Room thermostat zone 3
S20-1.1 - Portion 1 room thermostat of zone
S20-1.2 - Portion 2 room thermostat of zone
S20-1.3 - Portion 3 room thermostat of zone
S30.1 - Portion valve 1 of zone end run micro switch
S30.2 - Portion valve 2 of zone end run micro switch
S30.3 - Portion valve 3 of zone end run micro switch
1 - Zones control unit
2 - Zones control room thermostats
3 - Zone portion control room thermostats
4 - Zone shutter valves with micro limit switch
5 - Zone valve power supply
Note:
All components represented in this diagram are optional.
Every zone can be controlled by the relative room thermostat.
On connecting the room thermostats, it is necessary to eliminate the jumpers present on the X9 terminal board of the zones
control unit.
The room thermostat contacts can be replaced by those of the end run micro-switches belonging to other zone valves inserted
into the hydraulic circuit downstream from the zone pumps.
In the case of a single zone (controlled by a unique pump), it is divided into several portions (controlled by various zone valves);
the wiring diagram shown above must be followed.
If the Zones control unit is connected via BUS to Victrix Superior boilers (2021), the activation of the zones is determined by
the closure of the Room Thermostats and by the program on the Boiler menu (see boiler instruction booklet).
WIRING DIAGRAM FOR DIM ERP CONNECTION TO ON-OFF ROOM THERMOSTATS WITH SHARED ZONES.
3.8 DIM ERP CONNECTION TO ON-OFF ROOM THERMOSTATS WITH SHARED ZONES.