Grant Products HPAW155 - Manual (Page 22)

18
Electrical
8 Electrical
Earth connections have
been excluded for clarity.
Ensure all earth
connections are made
prior to energising.
Within the heat pump control panel, connect the wires as follows:
Wiring Centre Heat Pump
8 1 – Common
9 2 – Heating
10 3 – DHW
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 greys to terminal 8.
Hlg Zone V
alve
DHW Zone V
alve
E
L N
L N E 4 5 6 7 8 9 10
1
2
3
1
Limit Control
2
c
1 2
c
Programmer
Room
Thermostat
CH HW
Gr
Br
O
Bl
Off
E
Gr
Br
O
Bl
Off
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
DHW 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.
! NOTE
Figure 8-2: S-Plan type system for connection to Aerona heat pump