1
1-11-57
Work List No. Content Check
Possibility of Failure & Checkpoint
Installation
1
Are the indoor units installed following the
content on page 1-11-29 "■ SELECTING
THE INSTALLATION SITE (Type U2)"?
There is a possibility of light injure or loss of
property.
Tubing &
Wiring
2
In the case of multiple installation: Is there
a wrong tubing connection with another
system?
The unit is inoperated or the refrigerant fl ows
into the inoperative unit and the leakage is
expected. Check if there is a wrong tubing or wiring
connection with another system.
3
In the case of multiple installation: Is there
a wrong wiring connection with another
system?
4
Is the earth leakage circuit breaker
(all-pole switching function provided)
installed?
Power failure or short circuit may cause electric
shock or fi re. Check installation work and ground
wire work.
5
Is there any wrong installation of optional
parts or wrong wiring?
6
Was the ground wire work performed?
7
Are there any wrong power supply wiring,
wrong connection wire, wrong signal wire
or loose screw?
8
Is the thickness of wire in accordance with
rule?
9
Is the power-supply voltage equal to the
nameplate of the unit?
10
Was the check of the airtight test, fl ared
tube fi tting 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
11
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.
12
Is there water leakage?
Since there is a possibility of water drain, repair the
drain pipe if the drain failure or water drain occurs.
13
Indoor unit drain pipe has a downward
gradient (1/100 or more) by rule. Is the
drain water fl owing smoothly?
Heat
Insulation
14
Was the heat insulation work at a suitable
location including the fl ared tube fi tting
(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.
Optional
Parts
15
Was the short-circuit connector connected
or the fan tap changed when installing the
air-blocking material?
The discharge temperature decreases in cooling
mode according to the reduction of air volume
and there is a possibility of dew drops. Be sure to
change settings.
Test Run
16
Did the abnormal sound occur?
Check if there is a fan contact or distortion of the
indoor unit.
17
Did the cool and warm airfl ow discharge
from the indoor unit?
Check if the unit does not operate or there is a
wrong tubing or wiring connection with another
system.
CHECKLIST AFTER INSTALLATION WORK
281258_EU.indb 26 2016-9-1 13:04:20
APPENDIX
Care and Cleaning
WARNING
●
For safety, be sure to turn the air conditioner off and
also to disconnect the power before cleaning.
● Do not pour water on the indoor unit to clean it. This will
damage the internal components and cause an electric
shock hazard.
Air intake and outlet side (Indoor unit)
Clean the air intake and outlet side of the indoor unit with a
vacuum cleaner brush, or wipe them with a clean, soft cloth.
If these parts are stained, use a clean cloth moistened with
water. When cleaning the air outlet side, be careful not to force
the vanes out of place.
CAUTION
Never use solvents or harsh chemicals when cleaning
the indoor unit. Do not wipe plastic parts using very hot
water.
Some metal edges and the fins are sharp and may
cause injury if handled improperly; be especially careful
when you clean these parts.
The internal coil and other components of outdoor
unit must be cleaned regularly. Consult your dealer or
service center.
Air filter
The air filter collects dust and other particles from the air and
should be cleaned at regular intervals as indicated in the
table below or when the filter indication (
) on the display of
the remote controller (wired type) shows that the filter needs
cleaning. If the filter gets blocked, the efficiency of the air
conditioner drops greatly.
Type U2
Period 6 months
After Cleaning
1. After the air filter is cleaned, reinstall it in its original
position.
Be sure to reinstall in reverse order.
2. [In the case of Timer Remote Controller]
Press the Filter reset button.
The
(Filter) indicator on the display goes out.
[In the case of High-spec Wired Remote Controller]
Refer to the Operating Instructions attached to the optional
High-spec Wired Remote Controller.
A
20:30 (THU)
Timer Remote Controller
High-spec Wired
Remote Controller
Filter indicator
Filter reset button
Filter indicator
NOTE
The frequency with which the filter should be cleaned depends
on the environment in which the unit is used.
Clean the filter frequently for best performance in the area of
dusty or oil spots regardless of filter status.
<How to clean the filter>
1. Remove the air filter from the air-intake grille.
2. Use a vacuum cleaner to remove light dust. If there is sticky
dust on the filter, wash the filter in lukewarm, soapy water,
rinse it in clean water, and dry it.
<How to remove the filter>
4-Way Cassette Type (U2):
1. Use a screwdriver to remove the bolt screw on each side
for the two latches. (Be sure to reattach the two bolt screws
after cleaning.)
2. Slide the latches of the air-intake grille in the direction of the
inside to open the grille.
3. The air-intake grille opens downward.
CAUTION
When cleaning the air filter, never remove the safety
chain. If it is necessary to remove it for servicing and
maintenance inside, be sure to reinstall the safety chain
securely (hook on the grille side) after the work.
When the filter has been removed, rotating parts (such
as the fan), electrically charged areas, etc. will be
exposed in the unit’s opening. Bear in mind the dangers
that these parts and areas pose, and proceed with the
work carefully.
4. Push the side of the air filter marked with the indication
arrow
and pull it toward you. The air filter will be
disengaged.
Air-intake grille
Latch
Latches (×2)
Screw
Safety cord
Marking with
Marking with
Air filter
Marking with
, for air-intake grille
SM830266-00_大洋州向けR32シングルTD&SM.indb 57 18/03/29 10:20:42
To Next Page
Loading...
