Intergas XTREME 36 - Division of Central Heating System in Groups with Extra Heat Source

21
Operational principle
If the room thermostat switches o the boiler because another
heat source is heating the room, it is possible that the other
rooms will cool down.
This can be prevented by dividing the central heating system
into two groups. The group with the external heat source (Z2)
can be closed o from the main circuit with an electric shut-o
valve. Both groups have their own room thermostat.
Note: This ‘external heat source’ control can only be applied if
no external boiler must be heated.
Installation manual
► Place the shut-o valve (B) according to the connection
diagram.
If an OpenTherm or an on/o thermostat is used:
6.1.5 Division of central heating system in groups with extra heat source
Connection diagram ‘external heat source’
control
A. Boiler
B. Electric shut-o valve 230V~
C. Radiators
T1. Room thermostat Group 1
T2. Room thermostat Group 2
Z1. Group 1
Z2. Group 2
A
Z1
B
C
T
1
Z2
C
T
2
COMMENT
► All types of thermostats (OpenTherm, on/
o or RF) can be used in both groups.
12
X13 X12
12
12
12
T2 T1
► Connect the room thermostat of Group 1 (T1) to Connector
X12 1/2.
► Connect the room thermostat of Group 2 (T2) to Connector
X13 1/2.
► Change parameter P081 (see §8.3).
If an RF thermostat is used:
► Connect the RF thermostat using the RF menu; see §7.1.4.
The RF thermostat can only be used for Group 2.
► Change parameter P081 (see §8.3).
Connect thermostats Groups 1 and 2