4 Electrical installer
26
Figure 4�1 – Electrical Panel GAHP-A
4�3 ELECTRICAL POWER SUPPLY
Power supply line
Provide (by the installer) a protected single phase line (230 V 1-N
50 Hz) with:
▶
1 three-core cable type FG7(O)R 3Gx1,5;
▶
1 two-pole switch with two 5A type T fuses, (GS) or one 10A
magnetothermic breaker�
The switches must also provide disconnector capability,
with min contact opening 4 mm.
How to connect the power supply
To connect the three-pole power supply cable (Figure
4.2 p. 26):
1. Access the Electrical Board of the appliance accord-
ing to the Procedure 4.2 p. 25.
2. Connect the three lead-in wires to the terminal (TER)
in the electrical panel on the machine.
3. Provide the earth lead-in wire longer than live ones
(last to be torn in the event of accidental pulling).
Figure 4�2 – Electrical wiring diagram
Example of connection of appliance to 230 V 1 N - 50 Hz electricity
supply
LEGEND
A
CAN-BUS cable gland
B
signal cable gland 0...10 V pump Wilo
Stratos Para
C
electronic boards S61+Mod10+W10
D
terminal boxes
E
transformer 230/23 V AC
F
flame control unit
G
circulation pump power supply and
control cable gland
H
GAHP power supply cable gland
Terminals:
TER terminal box
L-(PE)-N
phase/earth/neutral GAHP power supply
MA terminal box
N-(PE)-L
neutral/earth/phase circulation pump
power supply
3-4
circulation pump enable
LEGEND
TER
terminal
board
L
phase
N
neutral
Components NOT
SUPPLIED
GS
general
switch
