Wiring Of Other Thermal - Gree VERSATI III Series Service Manual

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.
WARING!
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.

4.13 Wiring of 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.
Installation