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COMPREHENSIVE APPLICATION AND INSTALLATION MANUAL
LG Electronics
Installation check list
Configuration
System Design
Applications
Introduction
1.15 Check water piping pressure
Items to check
Is water filled in the system? Is water piping pressure at appropriate
level?
Result
Purpose
Secure flow, protect system
Applicants
AWHP SPLIT, Monobloc
Check water piping pressure when supplying tap water after first installation work.
Check pressure on the gauge either on the product or the gauge installed on site inside the piping.
Default pressure is 1bar and maximum is 3bar. (Release water with relief valve inside the product if pres-
sure is higher than 3bar)
Supply tap water until pressure is stabilized and maintained, and start supplying tap water
when pressure reaches minimum of 0.3bar.
Supply tap water
Pressure gauge: Field scope (option)
Underfloor
[Pressure gauge
inside product]
[Pressure gauge
inside piping]
1.16 Check flush
Items to check
Is it flushed?
Result
Purpose
Remove foreign objects and secure flow
Applicants
Common
There may be some foreign objects after new piping installation or equipment replacement.
Thus, connect the indoor unit only after clearing pipings so to avoid any foreign object in the piping.
Flushing can be done with the service valve and a separate pump and tap water.
[Strainer_Fine]
[Strainer_No flushing done]
