Toshiba ESTIA HWS-802XWHM3-E - Page 24

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Hydro Unit
Installation Manual
▼ Input line specifications
CAUTION
Earthing arrangements
The Hydro Unit and related equipment must be earthed in accordance with your local and national electrical regulations.
It is essential that the equipment is earthed to prevent the electric shock and damage to the equipment.
Electrical connection to hydro unit
• Remove the front cover and the electrical box cover from the Hydro Unit.
• The Hydro Unit power cable must be sized in accordance with refer to “Electrical supply/cable specifications”.
• Connect the Hydro Unit power cable to Terminal 02 as shown below.
• Ensure the Hydro Unit power cable is secured using the cable clamp fitted in the electrical box.
• Ensure the Hydro Unit power cable connection terminals are tight.
Outdoor unit to hydro unit electrical connection
• Ensure electrical circuits are isolated before commencing work.
• The Outdoor Unit to Hydro Unit interconnecting cable must be sized in accordance with refer to “Electrical supply/
cable specifications”.
• Connect the Outdoor Unit to Hydro Unit interconnecting cable as shown in the diagram above.
Defrost Output
Non-voltage
contacts
0.5 A AC230 V 12 m
1 A DC24 V 12 m
Description Input Maximum length
Emergency stop control Non-voltage 12 m
Cylinder thermostat input Non-voltage 12 m
Cooling thermostat input Non-voltage 12 m
Heating thermostat input Non-voltage 12 m
Single Phase Units: Live conductor – Terminal L1
Neutral conductor – Terminal L2
Earth conductor – Earth terminal
Three Phase Units: Phase 1 conductor – Terminal L1
Phase 2 conductor – Terminal L2
Phase 3 conductor – Terminal L3
Neutral conductor – Terminal N
Earth conductor – Earth Terminal
Description Output
Maximum
current
Max
voltage
Maximum
length
11
22
L
N
33
▼
Fig. 7-22
Input power
230 V~,
50 Hz
(Main circuit)
(Hydro/outdoor
connecting wires)
Hydro Unit: Terminal 01
Remote controller
Hydro unit
Earth
Earth
Earth
Leakage
breaker
Outdoor unit
Earth
23-EN