Dim H-Lt Erp Wiring Diagram - Immergas DIM 2 ZONE ERP Instructions And Warnings

3.3 DIM H-LT ERP WIRING DIAGRAM.

Power supply
230 Vac
50 Hz
Key:
B4 - External probe (optional)
B3-2 - Zone 2 low-temperature flow
probe
E7-2 - Zone 2 low-temperature safety
thermostat
M10-1 - Zone 1 pump
M10-2 - Zone 2 pump
M31-2 - Mixing valve zone 2
R12 - Zone 2 low-temperature flow
regulation trimmer
R13 - Zone 3 low-temperature flow
regulation trimmer
S25 - Board setting selector
S26 - Board setting selector
S27 - Board setting selector
T2 - Zone control unit low-voltage
feeder
On connecting the zone control Room Thermostats, it is necessary to eliminate the jumpers present in the zones control unit on terminal board X9.
On connecting the DIM safety thermostat, it is necessary to eliminate the jumper on X7.
V2
The zone control C.A.R. or Super C.A.R. remote
control must be connected directly to the boiler
and it will control Zone 2, which is pre-set as the
main zone on the manifold set as the Master (see
table above). In the event that two or more zones
Brown
ZONES
CONTROL UNIT
CONNECTION
CONNECTIONS TO ON/
TO DIM SAFETY
OFF ROOM THERMOSTATS
THERMOSTAT
N°
SWITCH
1
2
3
4
5 Super C.A.R.: main zone flow control
Mixed zones max. temperature =
6
7
8
Mixed zones minimum temperature
9
N.B.: the default settings are highlighted in bold.
are used, the chrono-thermostat must be set with
on-off operation (see instructions in the relative
booklet). The H.T. electric connections con-
trolled by the chrono-thermostat must be free.
CENTRAL HEATING REQUEST
OUTLET TO BOILER
CENTRAL HEATING REQUEST INLET
FROM OTHER DIM
OFF ON
ZONES SIGNAL STATE OUTLET
By connecting the zone control Room Thermostats, it is necessary
to eliminate the jumpers in the zones control unit
BUS IMG CONNECTION
TO BOILER
Connecting the DIM safety thermostat, it is necessary to
ZONES SIGNAL STATE
INLET FROM BOILER OR
OTHER DIM
ZONE CONTROL UNIT SETTINGS
OFF
Homogeneous zone control
N° 1 mixed zone (Z2)
MASTER board
Main zone = zone 1
50°C
Normal functioning
Not used
= 25°C
18
OR OTHER DIM
FOR OTHER DIM
on terminal board X9.
eliminate the jumper on X7.
ON
Mixed zone control
N° 2 mixed zones (Z2 and Z3)
SLAVE board
Main zone = zone 2
Super C.A.R.: system flow control
Mixed zones max. temperature = 75°C
Multi-zone recognition state
Not used
Mixed zones minimum temperature
= 35°C
3-3