10 Electrical wiring
TCGB0070 rev.3 - 04/2012
145
10
10.4 Domestic Hot Water Tank
10.4.1 Electrical wiring connection
The electrical wiring connection between DHWT and Yutaki system is as follows:
Customer connection:
Power supply:
1~ 230V 50Hz
Electric heater DHWT
Sensor DHWT
Pump con-
nection
10.4.2 Wire size
• Recommended minimum size for field provided wires:
Model
Power supply
Maximum
current (A)
Power supply
cable size
EH control
cable size
Sensor cable
size
EN60335-1
EN60335-1
EN60335-1
DHWT
1~ 230V 50Hz
15
2.5 mm²
1.0 mm
2
0.75 mm
2
•
Type of switches:
Select the main switches in accordance with the following table:
Model
Power supply
Maximum current
(A)
CB (A)
ELB
(nº of poles/A/mA)
DHWT
1~ 230V 50Hz
15
20
2/40/30
N O T E
• CB: Circuit Breaker
• ELB: Earth Leakage Breaker
• Follow local codes and regulations when selecting field wires, Circuit Breakers and Earth Leakage Breakers
• Use the wires which are not lighter than de ordinary polychloroprene sheated flexible cord (code designation
H05RN-F).
