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5.3 Combining the Boiler With Options
Optional equipments are connected to the connectors which
are located on the outside of the switch box. Do not open the
switch box to connect optional equipment.
Temperature Control Units
Solar NTC sensor
Opentherm room thermostat
Outdoor sensor
Boiler sensor
Ext. power output (230 VAC)
On-Off room thermostat
Solar stop contact
X1M
8
1
a
a Boiler sensor
Note: Boiler Sensor is used only T-model.
(7-8)
(5-6)
a Terminal
b Connector
Note: Illustration of plugging of connector to X1M terminal.
X2M
1
8
DANGER
X2M terminal is a high voltage terminal. Make sure
that optionalsare connected to correct connector.
D2CND028A1AA + D2CND028A4AA + D2CND035A1AA +
D2CND035A4AA + D2TND028A4AA + D2TND035A4AA
Wall-mounted condensing boiler
ESIE17 - 09 / 2017.11
Connector
Connection
X1M
1-2
X1M
3-4
X1M
5-6
X1M
7-8
X2M
3-4
X2M
5-6
X2M
7-8
a
(3-4)
(1-2)
b
Wiring of the options that are to be connected to the X2M
connector must pop out from the inside of the appliance via
cable glands. Cable glands which are sent with the appliance
must be assembled to the bottom sheet of the boiler in case
connection of these optionals. Below, you can see the Cable
glands placement.
Pg9
Holes on the bottom sheet that are reserved for cable glands
are covered with insulation material. The insulation material
must be bored if glands are to be used.
Note: That appliance must be opened to mount cable
glands. Refer to 'Opening the appliance' .
6
COMMISSIONING
WARNING
Only qualified persons should conduct commission-
ing.
CAUTION
Preliminary electrical system checks such as earth
continuity, polarity, resistance to earth and short
circuit must be carried out by using a suitable test
meter by a competent person.
6.1 To fill the condensate trap
INFORMATION
Water must be poured into the inner tube.
Fill the condensate trap by pouring 0.3 litres of water from the
boiler flue outlet.
6 Commissioning
Pg7
Servicing manual
23
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