3Way Valve - LG ARNH963K2A2 Installation Manual

3Way Valve

3way valve is required to operate Domestic Hot Water tank. Role of 3way valve is flow switching
between under floor heating loop and water tank heating loop.
General Information
supports following 3way valve.
Hydro Kit
Type Power
SPDT
1~ 230 V
3-wire (1)
(1) SPDT = Single Pole Double Throw. Three wires consist of Live (for selecting Flow A), Live 1 (for
selecting Flow B), and Neutral (for common).
(2) Flow A means ʻwater flow from the unit to Domestic Hot Water tankʼ
(3) Flow B means ʻwater flow from the unit to under floor water circuitʼ
How to Wire 3Way 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 wire as below.
3WAY VALVE
(A)
8 9 10
L L1 N
BR WH BL
(W) (U) (N)
3way valve
(W) : Live signal (Water tank heating) from PCB to 3way valve
(U) : Live signal (Under floor heating) from PCB to 3way valve
(N) : Neutral signal from PCB to 3way valve
WARNING :
Mice can not be appeared to prevent entering the unit or attacking wires.
Operating Mode
Selecting "Flow A" between
"Flow A" and "Flow B" (2)
Selecting "Flow B" between
"Flow A" and "Flow B" (3)
WARNING :
• 3way valve should select water tank loop when electric power is
supplied to wire (W) and wire (N).
• 3way valve should select under floor loop when electric power is
supplied to wire (U) and wire (N).
Accessories Installation
Supported
Yes
Yes
Hydro Kit Installation Manual 33