LG THERMA V Split Comprehensive Application And Installation Manual page 38

1.17 Check magnetictype strainer
Items to check Is the magnetictype strainer installed?
Purpose Secure flow, protect system
Applicants AWHP SPLIT, Monobloc
Especially to remove metallic particles from foul heating piping, it is recommended to use a magnetic or
cyclone filter, which can remove small particles. Small particles may damage the unit and will NOT be
removed by the standard filter of the heat pump system.
Magnetic strainer is separately available.
Install strainer on the water supply/inlet side for indoor unit.
Observe instructions of manufacturer of magnetic strainer.
Outlet Inlet
Magnet
[Magnetic filter]
074
_COMPREHENSIVE APPLICATION AND INSTALLATION MANUAL
Result
Magnetic strainer
Filter
1.19 Check air vent valve
Items to check Is air vent valve installed and open at the angled part of water piping?
Purpose Remove air from water piping
Applicants AWHP SPLIT, Monobloc
Air vent valve is integrated in the product by default but additional ones may be needed if there are bent
parts when pipings are installed.
Air Vent Valve is a device designed to remove air automatically from the hydronic heat pump system,
such as air remaining in the piping, dissolved air, and air that flowed in during installation.
- The air vent valve should be installed at every high point of the system.
- At the beginning and end of the curve
- At the water inlet/outlet pipe of the heat pump and heat exchanger
- At each branch piping connected to the main piping, when connecting multiple heat pumps
Dissolved gas
Result
Air trap area
075
LG Electronics