Piping And Wiring For Indoor Unit - LG Therma V Series Installation Manual

6. Install the air vent (5) at the top of the water pipe.
7. Install a thermometer (6) and pressure gauge (7) at the inlet and outlet of the water pipe.
8. Install the drain valve (8) that can be used for draining the water inside when replacing the part
or providing service.
9. Install the shut-off valve (9) to block the water by closing the valve when replacing the part or
cleaning.
10. Apply insulated treatment on the exterior of the water pipe so that water drops do not form.
11. Install excessive pressure safety valve (10) that meets the design water pressure to prevent
unit or water pipe damage at the pressure increase inside the water pipe system.
Union joint (2)
12. There is a drain hole at the bottom of prevent risk of electric shock caused by leakage of
water.
* Water tank & floor heating installation
1. Use the pump (1) with sufficient capacity to assure loss of overall water pressure and to
supply water to the Indoor Unit.
2. Install the shut-off valve (2) on both sides of the pump to clean and repair the pump.
3. Install the flexible joint (3) to prevent noise and vibration transferred from the pump.
4. Install the pressure gauge (4) to monitor the water pressure from water tank. (Option)
5. Install the expansion tank (5) to accommodate the water contracted or expanded from the
temperature difference and to supply the water.
6. After the installation of water pipe system is completed, open the water supply valve (6) and
supply the water.
7. When installing the water tank, insert the water tank temperature sensor (7) to measure the
temperature of the water inside the tank.
- For the water tank temperature sensor, use the sensor supplied on the product.
- When heating the floor, measure the temperature by using the remote controller or remote
temperature sensor (Separately sold).
8. Use the water tank (9) with the heat exchange coil (8) installed so that the heat can be
exchanged sufficiently inside the tank.
On-site installation (1)
Air vent (5)
Thermometer (6)
Drain valve(8)
P/T Service port(3)

PIPING AND WIRING FOR INDOOR UNIT

Pressure gauge(7) Shut-off valve (9)
Excessive pressure
safety valve(10)
Strainer(4)
Circulating
Pump
Outlet Water
[Install water tank]
or
[Install floor heating]
Inlet water
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