figure 39 - Connections to the heat pump regulator (accessories and options)
EX1
EX2
EX3
X60
X86
L
X84
X11
2 1
3
M B9
B2 M B1 3 2 1
1
2 1
3 2
B2
M
B1
Outdoor
sensor
Room
thermostat
T55**
Room
thermostat
T37**
Room
control unit
T75**
Room control
unit radio T78**
Power shedding or EJP
(peak day removal)
Tariffs,
peak times/off-peak times,
day / night
External fault
External component
contact*
(faults, load
shedder, power meter)
* If the control device does not provide a potential-free contact,
the contact must be relayed to create equivalent wiring.
In all cases, please refer to the instruction manuals for the external
components (load shedder, power meters) to create the wiring.
** Option
T75 : The connection of terminal 3 of the room control unit T75 is
not mandatory (lighting of the room control unit.
or
or
Installation and operating manual "1572 - EN"
- 33 -
Heat pump air/water split 2 services alféa excellia duo