Other Thermal - Gree Versati III Owner's Manual

MONOBLOC TYPE
The 3-way valve 2 is required for the sanitary water tank. Its role is flow switching between the under floor
heating loop and the water tank heating loop.
General Information
Type
SPDT
230V 50Hz ~AC
3-wire
(1) SPDT = Single Pole Double Throw. Three wires consist of Live1 (for selecting Flow B), and Neutral (for
common).
(2) Flow A means 'water flow from the indoor unit to under floor water circuit'.
(3) Flow B means 'water flow from the indoor unit to sanitary water tank'.
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

12. 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.
Power
Selecting "Flow A" between "Flow A" and "Flow B"
Selecting "Flow B" between "Flow B" and "Flow A"
9
3-Way Valve 2
WARNING
Operating Mode
10 11
ote
27
Air-to-water Heat Pump
Supported
Yes
Yes