22
3-9
3-8
INSTALLERUSER
MAINTENANCE TECHNICIAN
3.7 DIM CONNECTIONS TO ON/OFF ROOM THERMOSTATS.
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
Note: All components represented in this diagram are
optional.
All zones on the DIM can be controlled by the relative room thermostat, prior to the
elimination of the jumpers on terminal block X9.
e 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.
WIRING DIAGRAM FOR DIM CONNECTION TO ON-OFF ROOM THERMOSTATS WITH SHARED ZONES.
WIRING DIAGRAM FOR DIM CONNECTION TO ON-OFF ROOM THERMOSTATS.
Key:
S20-1 - Room thermostat zone 1
S20-2 - Room thermostat zone 2
S20-3 - Room thermostat zone 3
Note: All components represented in this diagram are optional.
All zones on the DIM 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.
ZONES CONTROL
UNIT DIM V2
AREA CONTROL ROOM
THERMOSTATS
ZONES
CONTROL
UNIT DIM V2
AREA CONTROL ROOM
THERMOSTATS
AREA PORTION CONTROL ROOM THERMOSTATS
Zone valve supply
voltage
ZONE SHUTTER VALVES WITH MICRO LIMIT SWITCH
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