3Way Valve - LG THERMA V AHBW036H0 Installation Manual

Accessories Installation

3Way Valve

3way valve is required to operate sanitary 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.
Type Power
SPDT
220-240 V~
3-wire*
* SPDT : = Single Pole Double Throw. Three wires consist of Live1 (for selecting Flow A), Live 2 (for
selecting Flow B), and Neutral (for common).
** No. of terminal block
How to wire 3way valve
Follow below procedures Step 1 ~ Step 2.
Step 1. Uncover front cover of the unit.
Step 2. Find terminal block and connect wire as below.
3WAY VALVE
(A)
8 9 10
L L1 N
BR BK BL
(W) (U)
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.
40 Air-to-Water Heat Pump
Water flow direction
From unit to under floor heating
From unit to sanitary water tank
• 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).
(N)
Wiring
L1(9**) – N(10)
L(8) – N(10)