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COMPREHENSIVE APPLICATION AND INSTALLATION MANUAL
LG Electronics
Installation check listConguration
System Design ApplicationsIntroduction
• Make sure to conrm that all items in the checklist below after installing the product are OK.
No Category Product Contents
Check
(OK/NO)
1 Installation Split Are pipings correctly connected?
2 Refrigerant Split
Was the standard airtight test run to check if there is
any leakage from pipings and the product?
(For R410A: 24-hour test with nitrogen pressure of
38 kg)
3 Refrigerant Split
Is vacuum level kept at or below 0.5 torr or is there
any change with vacuum for 1 hour after stopping
the vacuum pump?
4 Refrigerant Split
Was the additional amount of refrigerant correctly
calculated based on the length of added piping and
was the weight of refrigerant measured correctly
with an electronic scale before injection?
5 Refrigerant Split
Is there any leakage after connecting the refrigerant
pipings?
Check gas detector and use soap bubbles to nd
any leakage.
6 Installation Split
Is the indoor unit installed in the building and is
it installed and xed according to the installation
manual?
7 Installation Common
Is it possible to secure appropriate service area for
the indoor unit?
(More than 600 mm to the front and 400 mm to
sides)
8 Installation Common
Is the outdoor unit installed and xed rmly?
Wooden pallet removed and xed with anchor.
9 Installation Common
Is the outdoor unit installed at an appropriate loca
-
tion? (Consider air ow, noise and being under the
eaves and etc.)
10 Electric Common
Is there a proper protective measure or earthing
against lightning?
11 Electric Common
Is capacity of power lines and circuit breaker se
-
lected based on the latest catalogue of LG Electron-
ics and is pull-in power for both indoor and outdoor
units normal?
(Power/control cables, earth leakage breaker)
3-phase 4-wire AC 380 V for general purpose /
3-phase 3-wire AC 380 V for factories
Check pull-in power for the indoor unit
(1-phase 2-wire AC 220 V)
No Category Product Contents
Check
(OK/NO)
12 Water piping Common Is it proper to design the pipe diameter?
13 Water piping Common Is the quality of heat source water acceptable?
14 Water piping Common
Is there an appropriate measure against freezing
and bursting of at heat exchanger in winter?
(Use antifreeze solution or operate either pumps or
auxiliary heater)
15 Water piping Common
Is water lled in the system?
Is water piping pressure at the appropriate level?
16 Water piping Common Is it ushed?
17 Water piping Common Is the magnetic type strainer installed?
18 Water piping Common
Is there any leakage from water piping?
(Check with visual inspection)
19 Water piping Common
Is air vent valve installed and opened at the angled
part of water piping?
20 Water piping Common
Are buffer tank and auxiliary pump installed?
(Option)
1. Checklist
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