25
Follow steps below to wire the 3-way valve:
Follow below procedures Step 1 ~ Step 2.
Step 1. Uncover front cover of the unit and open the control box.
Step 2. Find terminal block and connect wires as below.
• The 3-way valve should select water tank loop when electric power is supplied to wire (ON) and
wire (N).
• The 3-way valve should select under floor loop when electric power is supplied to wire (OFF)
and wire (N).
(ON): Live signal (Water tank loop) from the main board to the 3-way valve
(OFF): Live signal (Heating system) from the main board to the 3-way valve
(N): Neutral signal from the main board to the 3-way valve
14.
Other Thermal
Other thermal is allowed for the equipment and controlled in such a way that the mainboard will output 230V
when outdoor temperature is lower than the set point for startup of the aother thermaluxiliary heat source.
Note: Other thermal and Optional Electric Heater CANNOT be installed at the same time.
Step 1. Other thermal installation
Other thermal should be installed with monobloc unit parallel. Moreover, an accessory called optional water
temperature sensor(5 meter length) shall be installed at the same time.
Water Tank
Mixing
Valve
Water Pump
Floor
Temp.
3-Way
Valve 2
2-Way
Valve 1
Tank Temp. of
Heat pump system
Water Tank EH
Other
Thermal
Optional
Water Temp.
Sensor
Monobloc Unit
