30
then run the wire into the appliance via the appliance case cabling
grommets and then into the control box housing through the hole
available. Secure the cables in Terminals T3 & T4 independently (Figure
12.2).
3.7.3
Controller Wiring Schematic and Diagram
5
6
T
M
M
3
4
7
8
9
15
2
18
13
16
17
1
Heating
demand
19
12
14
11
10
10
Figure 12.1: Example Wiring Option 1 Schematic (see Figure 3 for piping and electrical
options available)
Item Description
1
Heat
Pump
Controller
7
Central Heating
Flow
13
Mains
Water
Expansion
Relief Valve
2
Circulation
pump
8
Central Heating
Return
14
Hot
Water
Thermostatic
Blending Valve
3
Central
heating Zone
Valve
9
Check Valve
15
Hot Water flow
regulator
