22
Work List No. Content Check
□
Possibility of Failure & Checkpoint
Installation
1
Are the indoor units installed following the
content of the section “2. SELECTING
THE INSTALLATION SITE”?
□
There is a possibility of light injure or loss of
property.
Tubing
&
Wiring
2
Is the earth leakage circuit breaker
(all-pole switching function provided)
installed?
□
Power failure or short circuit may cause electric
shock or fire. Check installation work and ground
wire work.
3
Is there any wrong installation of optional
parts or wrong wiring?
□
4
Was the ground wire work performed?
□
5
Are there any wrong power supply wiring,
wrong connection wire, wrong signal wire
or loose screw?
□
6
Is the thickness of wire in accordance with
rule?
□
7
Is the power-supply voltage range equal
to the nameplate of the unit?
□
8
Was the check of the airtight test, flared
tube fitting and gas leakage on the
welded portion performed?
□
If the gas leakage occurs, the unit quality not only
becomes inferior but affects environment. Repair it
as quickly as possible.
Drain
Check
9
Has the adhesive been applied to the
drain connecting portion (resin portion) of
the indoor unit?
□
The resin portion cracks after a few months and it
may cause water drain.
10
Is there water leakage?
□
Since there is a possibility of water drain, repair the
drain pipe if the drain failure or water drain occurs.
11
Indoor unit drain pipe has a downward
gradient (1/100 or more) by rule. Is the
drain water flowing smoothly?
□
Heat
Insulation
12
Was the heat insulation work at a suitable
location including the flared tube fitting
(refrigerant tube & drain pipe) performed
properly?
□
The quality of unit not only becomes inferior but
there is a possibility of the water drain. So, perform
the heat insulation work properly.
Test Run
13
Did the abnormal sound occur?
□
Check if there is a fan contact or distortion of the
indoor unit.
14
Did the cool and warm airflow discharge
from the indoor unit?
□
Check if the unit does not operate or there is a
wrong tubing or wiring connection with another
system.
9. CHECKLIST AFTER INSTALLATION WORK
Important Information Regarding The Refrigerant Used
N OTE
Refer to the Installation Instructions attached to the outdoor unit.
00_300364_EU_all.indb 22 2018/1/24 14:46:38
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