17
8.2.3 Double zone control
Coding Assembly unit Coding Assembly unit
1 Main unit
Balance tank (Field supply)
19
Collector/distributor (Field supply)
Thermostat transfer board (ptional)
P_o: zone 1 circulation pump (Field supply)
RT 1…7
Low voltage room thermostat (Field
supply)
Mixing station (Field supply)
High voltage room thermostat (Field supply)
SV3: Mixing valve (Field supply)
Tw2
Zone 2 water flow temperature sensor
12
P_c: zone 2 circulation pump (Field supply)
FHL
1…n
Floor heating loop (Field supply)
RAD.
1...n
Radiator (Field supply)
10
Expansion vessel
(Field supply)
Shut-off valve (Field supply)
Drainage valve (Field supply)
15
Filling valve (Field supply)
4
4.2
4.1
10
FHL1 FHL2 FHLn
19
Outdoor
Indoor
Tw2
23
23.1
23.2
5
RAD.1
RAD.2
RAD.n
ZONE1
ZONE2
RT2 RT3
21
RT4
RT5
RT7
RT6
RT8
RT1
2
Modbus
15
16
14
12
14
16
1