Grant Products HPAW155 - Manual (Page 27)

Electrical
23
8.7 Wiring Diagrams
L N E 4 5 6 7 8 9 10
1
Limit
2
c
1
Control
2
c
Programmer
Fuse
CH HW
Fuse
Fuse
HIg
Zone Valve
MCB
L
L
Off
O
Bl
Br
Gr
Off
O
Bl
Br
Gr
DHW
Zone Valve
Return
sensor
Outdoor
sensor
Supply sensor
230V/24 Vac
Transformer
N
1 3
N
Room
Thermostat
Cylinder Thermostat
12 24
23
22
21
20
19
18
17
16
15
14
13
Relay 2 in heat
pump control
panel
Boiler
11
10
9
8
7
6
5
4
3
2
1
BTC
Heat Pump
PCH
Controller
Compressor
Circulating Pump
2
L
N
Figure 8-12: Bivalent system connection diagram
HW CH C
3 2 1
Heat pump
S-Plan controls
connections
230V 50Hz