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8 Electrical
Gr
Br
Bl
O
G/Y
E
L
N
Programmer
Figure 8-2: S-Plan type system for connection to Aerona heat pump
!
NOTE
Note that both wires from Gr (grey)
now terminate on their own at
position 8. The wires from O (orange)
from each valve now terminate on
their own at positions 9 and 10. The
feed from the cylinder thermostat
and the feed to Br (brown) on the
HW motorised valve, now terminates
at position 7. When that is
completed, the 3-core 0.75mm²
cable can now connect at positions
8, 9 and 10.
Within the heat pump control panel,
connect the wires from the wiring
centre as follows:
Wiring Centre
8
9
10
For multiple heating zone valves,
follow the above and join all oranges
from the heating motorised valves
into 9 in the wiring centre, and all
18
greys to terminal 8.
L
N
E
4
5
6
2
3
1
Room
Thermostat
8.3 Controller
Figure 8-3: ATC connection
Heat Pump
1 – Common
2 – Heating
3 – HW
Figure 8-4: Umbilical cable
Heat pump
S-Plan controls
connections
1
2
3
C CH HW
7
8
9
10
Limit
Control
1
1
2
2
c
c
Gr
Br
Bl
O
G/Y
E
Earth connections have
been excluded for clarity.
Ensure all earth
connections are made
prior to energising.
Figure 8-5: ATC control unit
Using the 5m of umbilical cable,
connect the controller (right) to the heat
pump (left). The controller fits all
standard single patresses (surface and
flush). Use one of the cable glands at
the rear of the heat pump to protect
this cable. To extend (if required) simply
splice a new section into the middle,
ensuring all connections are sound and
water proof. The size of cable is
0.5mm², and operates at ultra low
voltage (<50Vdc).
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