Giatsu WD2N8B Serie Manuel De L'utilisateur Et D'installation page 66

Picture in this manual for reference only, please refer to the actual product.
The backup heater can be customized outside the unit in accordance with demands，which contains 3kW(1-phase) ,
4.5kW(1-phase), 4.5kW(3-phase), 6kW(3-phase) and 9kW(3-phase)（Please refer to the INSTALLATION & OWNER'S
MANUAL of the backup heater for details).
The backup heater(optional) and heat pump are independently powered.
Please remove the hollow
plate after installation.
NOTE
01