DHW tank
Electrical connections
Procedure
• Switch off the power supply before making any connections.
• Use a thermal grease in thermistor pocket after installing electric connections.
WARNING
Connections to be made in the electrical box of DHW tank
1. Connect the booster heater power supply and thermal protection cable.
2. Make sure to ensure strain relief of the cable.
Connections to be made in the electrical box of indoor units
3. Plug the thermistor cable connector in the connector CNS042 on the pcb.
4. Connect the booster heater power supply and thermal protection cable(field supply) to terminal TB-A1 and earth on the
terminal block.
5. Connector the loose ends of the TB-A1 on the terminal block and the connector CNS042 on the PCB.
6. Plug the thermistor cable connector in the socket X9A on the PCB.
7. Connect the booster heater power supply and thermal protection cable (field supply) to terminal 7, 8, 21, 22 and earth on
the terminal block.
8. Connect the booster heater power supply cable to the circuit breaker and earthing screw.
9. Fix the cables to the cable tie mountings with cable ties to ensure strain relief.
• It is of great importance that the heater is filled with water before the electricity is hooked up, or else- the
warranty is not valid. If the heater is installed and not used, it must be flushed with water once a week.
CAUTION
Connection of the solar circulation pump / DHW Thermostat for DHW tank
Description
No. of wires
Max. current
Thickness
Supply Scope
Solar pump /
DHW Thermostat
2+ground
10 mA
0.75mm
2
H05RN-F or
H07RN-F
Field supply
(230 V~, Input)
B26: SOLAR PUMP / DHW Thermostat (L)
B25: SOLAR PUMP / DHW Thermostat (N)
Controller
SOLAR PUMP /
DHW Thermostat
Power
Solar pump operates when FSV 3061=1 is set, and DHW
Thermostat operates when FSV 3061=2 is set.
1. Before the installation, control kit should be turned off.
2. Using the appropriate equipment to correct position of terminal
block as shown on the diagram.
3. It is for control kit to inform that the Solar pump / DHW Thermostat
is operating.
4. Solar pump / DHW Thermostat is controlled by installer’s handling.
And it send the signal to control kit depending on Solar pump /
DHW Thermostat conditions. In operating mode, signal shall be
around 230Vac B/W N&L. In non-operating mode, signal shall be
around 230Vac B/W N&L. When solar pump signal is On, Control kit
DHW mode will be turned off.
• Maximun allwable current of each terminal is below 10 mA.
• Ports number B25, B26 are for input port for detection
and they do not supply power to a Solar pump / DHW
Thermostat.
CAUTION
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