Immergas V2 - Page 33

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If the boiler requires it, the BUS connection can be made to the terminals as DIM BUS or 44-41, or 40-41 (see boiler instruction booklet).
On connecting the zone control Room ermostats, it is necessary to eliminate the jumpers present in the zones control unit on ter-
minal board X9.
On connecting the marker safety thermostat kit, it is necessary to eliminate the jumper on X7.
Any C.A.R.V2 or Super C.A.R. zone control must be connected directly to the boiler.
N.B.: for boilers other than Victrix Superior (2022), it is possible to control Zone 1 or Zone 2 as the main zone, indierently. By default
(switch 4 on OFF) on the manifold set as Master will be controlled as the main Zone 1.
For Victrix Superior (2022) range of boilers, regardless of how switch 4 is set (ON or OFF), Zone 1 will still be controlled as the main one.
e electrical connections of the RT inlets of the zones control unit relating to the zone controlled by the remote device, must be le
free if the marker safety thermostat zone kit is connected to boilers other than Victrix Superior (2022).
N.B.: combined with the Victrix Superior (2022) range of boilers, the jumper of zone 1 (if remotely present) must be maintained (or
used for contacts of zone shutter valves).
ZONES CONTROL UNIT SETTING VALUES ON SYSTEM SPLIT INTO 3 HOMOGENEOUS ZONES
No.
SWITCH
OFF
ON
1 Homogeneous zone control Mixed zone control
2 N° 1 mixed zone (Z2) N° 2 mixed zones (Z2 and Z3)
3 MASTER board SLAVE board
4 Main zone = zone 1 Main zone = zone 2
5 Super CAR: main zone ow control Super CAR: system ow control
6 Mixed zones max. temperature = 50°C Mixed zones max. temperature = 75°C
7 Normal functioning Active testing function
8 Not used Not used
9 Mixed zones minimum temperature = 25°C Mixed zones minimum temperature = 35°C
10 Not used Not used
11 Not used Not used
12 Not used Not used
N.B.: the default settings are highlighted in bold.
STD.009285/001