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11 Operation Control
11.1. Tank empty abnormality
• Every time power ON reset, when heater 1 is started up for first time the unit will monitor heater 1 temperature for 10 minutes. If
heater 1 temperature increased continuously, error code H96 will be display.
11.2. Heater Output Control
Heater 1 (3kW) is use to heat up water for water supply of tank upper part.
Heater 2 (6kW) is use to heat up water for heating of tank bottom part.
11.2.1. Heater 1 control
• Heater 1 will operate when Pump 1 indicator is ON and hot water supply temperature sensor is 5qC less than heater 1 set
temperature.
• Heater 1 will stop operate when hot water supply temperature sensor is 2qC more than Heater 1 set temperature
11.2.2. Heater 2 control
• Heater 2 will operate when Pump 2 indicator is ON and tank upper or center temperature sensor is 15qC less than heater 2 set
temperature.
• Heater 2 will stop operation when tank upper or center temperature sensor is 2qC more than heater 2 set temperature.
11.3. Pump Control
11.3.1. Shower water pump (Pump1) control
Shower water pump is to supply tank water to heat exchanger when hot water is in used.
Operation condition
• Shower water pump will operate when ON/OFF button of remote control is ON and when sanitary water is being used.
Stop condition
• Shower water pump will stop when ON/OFF button of remote control is OFF and when stop using sanitary water.
11.3.2. Floor water pump (Pump2) control
Floor water pump is to supply hot water stored inside the tank to radiator or under floor system
Operation condition
a. During system is ON
• Floor water pump will operate when panel or floor heating operation is ON and when outdoor ambient temperature is 1°C
less than outdoor set temperature to OFF panel or floor heating operation.
b. During system is OFF
• Heating button is pressed for 5 seconds.
Stop condition
a. During system is ON
• Floor water pump will stop when panel or floor heating operation is OFF and when the outdoor ambient temperature is
higher than set temperature to off panel or floor heating.
b. During system is OFF
• Heating button is pressed again for 5 seconds.
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