Intergas XTREME 36 - Connecting Outdoor Sensor; Frost Protection

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6.5.4 Connecting outdoor sensor
The boiler has a connection for an Intergas outdoor sensor. The
outdoor sensor must be used in combination with an on/o or
OpenTherm room thermostat.
In principle, any on/o or OpenTherm room thermostat can
be combined with an Intergas outdoor sensor. With an on/
o thermostat, the boiler will adjust the flow temperature
according to the set heating line. With an OpenTherm
thermostat, this determines the influence on the flow
temperature.
► Connect the outdoor sensor to Connector X13 3/4 (also see
§11.1).
For the heating line graph, see §7.6.
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X13 X12
3
4
► To prevent freezing of the condensation drain piping, the
boiler must be installed in a frost-free area.
► To prevent freezing of the boiler, the boiler is equipped with
frost protection. If the temperature of the water in the heat
exchanger becomes too low, the pump will run (the burner
is switched on if needed) until the temperature of the water
is again at a frost-free level.
Comment
If an on/o room thermostat will be used, secure a frost-hazard
area from frost in combination with
a frost thermostat. The radiator valve in the frost-sensitive area
must be opened.
► In frost-hazard areas (for example, a garage), place a frost
thermostat.
► Connect the frost thermostat together with an on/o room
thermostat or RF thermostat parallel to Connector X13 1/2
(also see §11.1).
6.5.5 Frost protection
CAREFUL
► With the use of an OpenTherm
thermostat, a frost thermostat may not
be connected in parallel on Connector
X13. In that case, connect the OpenTherm
thermostat to Connector X13 and the
frost thermostat to Connector X12.
If the (external) frost thermostat is used in the installation and
it is connected to the boiler, it is not active when the boiler is
switched o.
12
X13 X12
1212
On
O
12
X13 X12
12
12
12
Connecting outdoor sensor
Frost thermostat and on/o thermostat
parallel connection
Frost thermostat and OpenTherm thermostat
connection