Electrical Installation - Toshiba HWS-802XWHM3-E Engineering Data

7. HYDRO UNIT INSTALLATION MANUAL

Electrical Installation

• Ensure electrical circuits are isolated before commencing the electrical installation.
• The electrical installation must be completed by a qualified electrician.
• The electrical installation must comply to all Local, National and International electrical installation regulations.
• This product must be earthed in accordance with Local, National and International electrical installation regulations.
• The Hydro Unit must be connected to a dedicated power supply for the back up heater circuit.
• The electrical supply must be protected by a suitably sized over current protection device (fuse, MCB etc) and an
earth leakage protection device.
• The Hydro Unit must be connected to the mains power supply using a isolating switch which disconnects all poles
and has a contact separation of at least 3 mm.
• The cord clamps, attached to the Hydro Unit, must be used to secure the electrical cables.
• Wrong connection of electrical cables may result in electrical component failure or fire.
• Ensure the electrical cables are sized in accordance with the installation instructions.
Power line
▼ Fig. 7-19
Input power Leakage
230 V ~ breaker
50 Hz 30 mA
WARNING
CAUTION
Backup heater
230 V ~ (3 kW type)
Input power
230 V ~
50 Hz
Leakage
breaker 30 mA
N
L
TB02
1 1
2 2
3 3
L
N
Outdoor unit
– 82 –
Backup heater
400 V 3N ~ (6.9 kW type)
Input power
400 V 3N ~
50 Hz
Leakage
breaker 30 mA
L1 L1 L2 L3 N
TB02
1
2
Leakage
breaker
L
30 mA
N
Hydro unit
Engineering Data Book
Hot water cylinder
1
2
Input power for
cylinder heater
230 V ~ 50 Hz
7
20-EN