Guidelines When Connecting Options To The Boiler - Daikin D2C18ND024A5AA Installation Manual

4 Installation
4.8.5 Guidelines when connecting options to
the boiler
DANGER
X2M connector has 230 V AC.
Optional equipment is 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
Daikin room thermostat
Outdoor sensor
Domestic hot water storage tank
sensor
External power output (230 V AC)
On-Off room thermostat
X1M
(7-8) (5-6)
1
X2M
8
Wiring of the options that are to be connected to the X2M connector
must pop out from the inside of the unit via cable glands. Cable
glands that are sent with the unit must be assembled to the bottom
sheet of the boiler in case connection of these options. Below, you
can see the cable glands placement.
Installation manual
14
Connector Connection
X1M 1-2
X1M 3-4
X1M 5-6
X1M 7-8
X2M 3-4
X2M 5-6
(3-4) (1-2)
PG 9 PG 9 PG 7 PG 7
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: Unit must be opened to mount cable glands. See
the unit" on page 8 to reach the inside of the boiler.
D2C18ND024A5AA + D2HND012/18A5AA
"4.1 To open
Wall-mounted condensing boiler
3P469346-9J – 2018.05