Panasonic CS-E12SD3UAW User manual

© Panasonic Corporation 2016
Order No: PAPAMY1604052CE
Indoor Unit Outdoor Unit
CS-E9SD3UAW
CS-E12SD3UAW
CS-E18SD3UAW
CU-E9SD3UA
CU-E12SD3UA
CU-E18SD3UA
Destination
USA
This service information is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service
or repair the product or products dealt with in this service information by anyone else could result in serious injury or death.
WARNING
PRECAUTION OF LOW TEMPERATURE
In order to avoid frostbite, be assured of no refrigerant leakage during the installation or repairing of refrigerant circuit.
Installation Manual

33
11. Installation Instruction
xIMPORTANT (ONLY FOR E9SD3UAW AND E12SD3UAW)
This product has been designed and manufactured to meet ENERGY STAR®criteria for energy efficiency when
matched with appropriate coil components. However, proper refrigerant charge and proper air flow are critical to
achive rated capacity and efficiency. Installation of this product should follow the manufacturer’s refrigerant
charging and air flow instructions. Failure to confirm proper charge and airflow may reduce energy
efficiency and shorten equipment life.
Attached Accessories
No. Accessory part Qty.
1
Remote control
1
2
Battery
2
3
Remote control holder
1
4
Remote control holder
fixing screw
2
5
Remote control receiver
1
No. Accessory part Qty.
6
Receiver fixing screw
(M4 x 39/64" (15.5 mm))
2
7
Clamper (band)
(for receiver cable fixing)
1
8
Receiver cable
(6.56 ft (2 m))
1
9
Washer
(for suspension fitting)
8
0
Flare insulator
(for gas pipe / liquid pipe
connection)
2
No. Accessory part Qty.
!
Clamper (band)
(for flare & drain insulating
connection)
4
@
Drain hose
(for unit & PVC pipe
connection)
1
#
Hose band
(for drain hose connection)
1
$
Drain hose insulation
(for drain pipe connection)
2
%
Clamper (band)
(for power supply cord)
1
* Be sure to fix the power supply cord
with clamper (band).
¥
Drain elbow
1
L=131
ŶRequired Materials
xRead the catalog and other technical materials and prepare the required materials.
xApplicable piping kit
Applicable piping kit Piping size
Gas Liquid
CZ-3F5, 7BP 3/8" (9.52 mm) 1/4" (6.35 mm)
CZ-4F5, 7, 10BP 1/2" (12.7 mm) 1/4" (6.35 mm)
CZ-52F5, 7, 10BP 5/8" (15.88 mm) 1/4" (6.35 mm)
xPipe size reducer (CZ-MA1P) for outdoor Multi connection CS-E12SD3UAW, CS-E18SD3UAW

34
ŶOther Items to be Prepared (Locally Purchased)
Product name Remarks
Rigid PVC pipe VP20 (outer diameter ø1 1/32" (ø26); also sockets, elbows and other parts as necessary
Adhesive PVC adhesive
Insulation For refrigerant piping insulation: foamed polyethylene with a thickness of 5/16" (8 mm) or more.
For drain piping insulation: foamed polyethylene with a thickness of 13/32" (10 mm) or more.
Indoor/outdoor connecting cable UL listed or CSA approved 4 conductor wires minimum AWG16
Hanging bolt related parts Hanging bolts (M10) (4) and nuts (12), (when hanging the indoor unit)
A
Indoor unit
BOutdoor
unit
IMPORTANT
Begin the installation job from
the “Indoor Unit” installation.
Insulation of piping connections
• Carry out insulation after
checking for gas leaks and
secure with vinyl tape.
Vinyl tape
Remote control holder fixing screws 4
Remote control holder
3
Remote
control
1
Attaching the remote control holder to the wall
Model
Capa-
city
(Btu/h)
Piping size
Std.
Length
Max
Eleva-
tion
Min.
Piping
Length
Max.
Piping
Length
Addi-
tional
Refri-
gerant
Piping
Length
for add.
gas
Gas Liquid
E9SD3UAW 9000
3/8"
(9.52
mm)
1/4"
(6.35
mm)
24.6 ft
(7.5 m)
49.2 ft
(15 m)
9.8 ft
(3 m)
65.6 ft
(20 m)
0.2
oz/ft
(20
g/m)
24.6 ft
(7.5 m)
E12SD3UAW 11500
1/2"
(12.7
mm)
E18SD3UAW 17200
1/2"
(12.7
mm)
100.0 ft
(30.5 m)
0.3
oz/ft
(25
g/m)
32.8 ft
(10 m)
Example: For E9SD3UAW
If the unit is installed at 32.8 ft (10 m) distance, the
quantity of additional refrigerant should be 1.64 oz
(50 g) …. (32.8 - 24.6) ft x 0.2 oz/ft = 1.64 oz.
((10 - 7.5) m x 20 g/m = 50 g).
3 15/16"
(100 mm)
or more
Sleeve ( )
Bushing-Sleeve ( )
Putty
(Gum Type Sealer) ( )
Bend the pipe as
closely on the wall
as possible, but
be careful that it
doesn’t break.
Vinyl tape (Wide) ( )
• Apply after carrying
out a drainage test.
•To carry out the
drainage test,
remove the air
filters and pour
water into the heat
exchanger.
Saddle ( )
Connection cable ( )
Additional
drain hose ( )
Power supply
cable ( )
3 15/16"
(100 mm)
or more
1/4" (6.35 mm)
Liquid side piping
()
Gas side piping ( )
39 3/8"
(1000 mm)
or more
11
13/16"
(300 mm)
or more
Installation parts you
should purchase ( )
It is advisable to avoid more than 2 blockage
directions. For better ventilation & multiple-outdoor
installation, please consult authorized dealer/specialist.
Or
xThis illustration is for explanation purposes only.
The indoor unit will actuallyface a different way.

35
11.1 Indoor Unit
11.1.1 Selecting the Installation Location
Take into consideration the following contents when creating the blueprint.
ŶIndoor unit installation location
xDo not install the unit in excessive oil fume area such as kitchen, workshop and etc.
xThe location should be strong enough to support the main unit without vibration.
xThere should not be any heat or steam source nearby.
xDrainage should be easy. Avoid locating the drain port close to ditches (domestic wastewater).
xAvoid locations above entrances and exits.
xDo not block the air intake and discharge passages.
xSelect the location that enables the cool and warm air to spread out to the entire room.
xLocate the indoor unit at least 3.28 ft (1 m) or more away from a TV, radio, wireless appliance, antenna cable and
fluorescent light, and 6.56 ft (2 m) or more away from a telephone.
xRecommended installation height for indoor unit shall be at least 8.27 ft (2.5 m) from floor.
11.1.2 To Drill a Hole in the Wall and Install a Sleeve of Piping
1 Insert the piping sleeve to the hole.
2 Fix the bushing to the sleeve.
3 Cut the sleeve until it extrudes about 19/32"
(15 mm) from the wall.
When the wall is hollow, be sure to use the sleeve for tube
assembly to prevent pests from damaging the cables, e.g.
mice biting the connection cable.
4 Finish by sealing the sleeve with putty or
caulking compound at the final stage.
Putty or caulking compound
Sleeve
for tube
assembly Approx.
7/32
" -
9/32
"
(5 - 7 mm)
Bushing for
tube assembly
Wall
Outdoor
Indoor
ø
2
3/4
"
(ø70 mm)
through hole
19/32"
(15 mm)
11.1.3 Installing the Indoor Unit (Installation Embedded in the Ceiling)
11.1.3.1 Preparation Before Installation
xAlways provide sufficient entry and exit space to allow installation work, inspection and unit replacement.
xWaterproof the rear surface of the ceiling below the unit in consideration of water droplets forming and dropping.
When cooling operation is performed for an extended period under the following conditions, water droplets may form and drop. Attach locally
purchased insulation (foamed polyethylene with a thickness of 7/32" (5 mm) or more) to the outside of the indoor unit before installing into the
ceiling to improve heat insulation.
xLocations with a dew point inside the ceiling of 73.4°F (23°C) or more
xKitchens and other locations that produce large amounts of heat and steam
xLocations where the inside of the ceiling serves as an outside air intake passage
xWhen installing into a ceiling, select the unit position and airflow direction that enable the cool and warm
air to spread out to the whole room.
xDo not place objects that might obstruct the airflow within 3.28 ft (1 m) below the intake grill.

36
Required Minimum Space for Installation and Service
Flange for air outlet duct
32
7/16" (
824) (Suspension bolt pitch)
Inspection
access
17
23/32
"
x
17
23/32
"
(
450 x 450)
Electrical
component box
Refrigerant tubing
Min. 25
19/32
"
(
650) or more
Min. 7 7/8"
(200) or
more
22
7/32
"
(
564)
Min.
7
7/8
"
(
200)
or
more
Min. 25/32" (20) or more
Min. 25/32" (20) or more
7
7/8
" (200)
*H=Min.
9
7/16
" (240)
Min 3
15
/
16
" (100 mm) or more for bottom
air intake Ceiling
xH dimension means the minimum height of the unit installation space.
xSelect H dimension such that a downward slope of at least 1/100 is ensured. Refer to 11.1.4 “Connecting the
drain piping”
Dimension of the Indoor Unit
5
23/32
" (145)
1
5/32
" (29)
3
25/32
" (96)
2
5/8
" (66)
1
1/32
"
(26)
1
1/16"
(27)
1
3/16
" (30)
1
3/32
" (28) 3
5/16
"
(84)
2-ø
1/8
"
(ø3.1)
(Hole)
10-ø
1/8
"
(ø3.1)(Hole)
1
3/16
"
(30)
13/32
"
(10)
3
5/32
"
(80)
9
3/8
" (238)
5
5/8
"
(143)
Water inlet
1
23/32
" (44)
3
3/16
" (81)
1
5/16
"
(33)
5
29/32
" (150)
7
7/8
" (200)
5 29/32"
(150)
29/32
"
(23)
5
3/16
"
(132)
5
3/16
"
(132)
8
21/32
"
(220)
8
21/32
"
(220)
27
23/32
" (704)
29/32
"
(23)
9/16
" (14)
9/16
"
(14)
9/16
"
(14)
7/8
"
(22)
26
25/32
"
(680)
1
9/16
"
(40)
6
3/32
"
(155)
4
31/32
"
(126)
25
3/16
"
(640)
7
5/8
" (
194)
6
1/32
"
(153)
4
23/32
"
(120)
27
1/4
"
(692) (Flange for air outlet duct)
1 15/32
"
(37)
1
1/2
"
(38)
29/32
"
(23)
19/32
"
(15)
Suspension lug
5-ø
1/8
"
(ø3.1)(Hole)
25
3/16
" (640) (6
5/16
" (160) x 4)
Inspection access
17
23/32" X
17 23/32"
(450x450)
(Field supply)
22
7/32
" (564) (Suspension bolt pitch)
32
7/16
" (824) (Suspension bolt pitch)
29
17/32
" (750)
* Filter Uninstalled

37
In Case of Bottom Intake
1 Remove the frame filter assy as shown in
diagram 1
2 Remove cover plate as shown in diagram 1
3 Fix frame filter assy as shown in diagram 2
4 Fix cover plate as shown in diagram 2with
the dummy hole downward.
12
Dummy hole
Dummy hole
Air intake
Air intake
Frame
Filter
Assy
Air
discharge
Air discharge
Cover plate
Cover plate
Frame Filter
Assy
Fixing Frame Filter Assy
*Attach the frame filter assy to
the main unit while pushing the
tip of the latches in the direction
of the arrow.
In case of bottom side
Main unit
Filter Assy
In case of back side
Ceiling Opening
xInstall inspection opening 17 23/32" x 17 23/32" (450 mm x 450 mm) on the control box side where maintenance
and inspection of the control box and drain pump are easy. Install another inspection opening 31 1/2" x 27 9/16"
(800 mm x 700 mm) also at the lower part of the unit.
700
800
Allow view A
Inspection access
(Field supply)
Air intakeAir
discharge
Ceiling
A
27
9/16
" (700)
31
1/2
" (800)
Securing the Hanging Bolts
Wooden of other structure
(Hanging bolt pitch)
C channel
Hanging fixture
Hanging bolt
Approx.
4 1/2" (144)
Hanging
bolt M10
Ceiling surface
Roof beam
Reinforcing materials
(2
3/8
" to 3
17/32
") (60 to 90 mm)
Hanging
bolt M10
Approx.
4 1/2" (114)
Ceiling surface
Insert hole-in
anchor, etc.
Reinforced concrete
”
1
9/16
" (40)
t =
3/32
" (2)
1
3/16
" (30)
xSecure the hanging bolts (M10, locally purchased) firmly in a manner capable of supporting the unit weight.
xConsult your construction or interior contractor for details on finishing the ceiling opening.

38
Installing an Intake and Discharge Duct Type
xEnsure the range of unit external static pressure is not exceeded. Refer technical manual for the range of
external static pressure setting.
xConnect the duct as shown.
xWhen attaching duct to the intake side, remove the product filter frame assy and replace with locally purchase
intake-side flange by using flange by using 10 - Ø 1/8" (Ø 3.1)(hole) screws.
xWrap the flange and duct connection area with aluminium tape or similar to prevent air leak.
Insulation material
(locally purchased)
Connection screw (x10)
Rectangular solic duct
Flange
(locally purchase)
Flange
Main unit
Air outlet sideAir inlet side
When attaching a duct to the intake-side, be sure to attach
an air filter inside the air passage on the intake-side.
(Use an air filter with dust collecting efficiency at least 50%
in a gravimetric technique.)
Installation into the Ceiling
xAttach the nuts and washers to the hanging bolts, then lift up and hook the main unit onto the hanging fixtures.
xCheck if the unit is leveled using a level or a vinyl hose filled partially with water.
Hanging bolt (M10)
(locally purchased)
Washer
9
Hexagonal nut (M10)
(locally purchased)
Level

39
Mounting Remote Controller Receiver
Install the remote controller receiver cable at least 1 31/32" (50 mm) away from electric wires of other appliances to avoid miss-operation
(electromagnetic noise).
1 Remove the bottom case.
Insert the driver
and slightly turn.
Bottom
case
Flat-blade
screwdriver
Attention
Mounting the bottom case
xTighten the screws securely until the screw heads
touch the bottom case. (Otherwise, loose screw
heads may hit the PCB and cause malfunction
when mounting the top case.)
xDo not over-tighten the screws. (The bottom case
may be deformed, resulting in fall of the unit.)
Screws 6
Connecting the remote control wiring
xArrange the wires as shown in the illustration for 2as in diagram below, avoiding unnecessary wires being
stored in the case. (Caught wires may destroy the PCB.)
xAvoid wires touching parts on the PCB. (Caught wires may destroy the PCB.)
2 Mount to the wall.
EXPOSED TYPE
Preparation: Make 2 holes for screws using a driver.
Mount the top case.
• Align the claws of the
top case and then align
the claws of the bottom
case.
Mount the bottom case
to the wall.
Connect the remote control wiring.
• Arrange the wires along the groove of the case.
Cut here with
a nipper and
remove the burr
with a fi
le.
Hole for screw
Claw (2 places)
Wall to fix the
receiver
Wood screw (supplied)
Claw
Clamper
7
(supplied)
Pass
through
the hole
Top case
(Back side)
Bottom case (Back side)
EMBEDDED TYPE
Preparation: Make 2 holes for screws using a driver.
Mount the top case.
• Align the claws of the
top case and then
align the claws of the
bottom case.
Mount the bottom case to the wall.
• Pass the wire through the hole in
the centre of the bottom case.
Connect the remote control wiring.
Avoid the wire
being caught.
Claw (2 places)
Hole for screw
Claw
Wood screw (supplied)
Terminal board
Top case
(Back side)
Bottom case (Back side)

40
xConnect the indoor unit and the remote control receiver 5. (Refer to the illustration.)
xFix the green wire from receiver cable 8to the grounding location provided inside control board.
Remote control
receiver 5
Receiver cable 8
Control box
11.1.4 Connecting the Drain Piping
xLay the drain piping so as to ensure drainage.
xUse a locally purchased VP20 general rigid PVC pipe (outer diameter ø1 1/32" (ø26)) for the drain piping and
firmly connect the indoor unit and the drain piping using supplied hose band to ensure that no leakage
occurs.
xDrain piping located indoor should always be insulated by wrapping with locally purchased insulation (foamed
polyethylene with a thickness of 13/32" (10 mm) or more).
xThe drain piping should have a downward gradient (1/100 or more) and should be secured by using pipe hanging
equipment to avoid creating hills or traps partway.
xShould there be any obstacle preventing the drain piping from being extended smoothly, the drain piping can be
raised outside of the main unit as shown in the illustration below.
Drain hose insulation
$
Drain hose @
Hard PVC pipe (VP20)
Hose band
#
Unit drain port
Do not use adhesive.
Adhere with
PVC adhesive.
5
1/8
"
(130)
1
1/32
"
(26)
1
1/32" (26)
Rise
Hill
Trap
11 13/16" (300 mm) or less
(not a downward gradient)
19 11/16" (500 mm) or less
Good
At least 1/100
xStrictly do not install and extend the drain piping from the main unit drain water outlet horizontally or upward or raised it 19 11/16" (500 mm)
or more.
Doing so may result in poor drainage or drain motor failure.
xDo not use drain hose bent at 90° angle. (The maximum permissible bend is 45°.)
11.1.5 Insulating the Refrigerant Piping
xAfter the piping is connected, insulate. (Refer to the illustration)
Wrap firmly
with vinyl tape,
leaving no gaps.
Unit side
Wrap firmly
with vinyl tape,
leaving no gaps.
Flare insulator 0
Clamper !

41
11.1.6 Connect the Cable to the Indoor Unit
xRemove control box cover.
xRemove the plugs.
xFix the conduit connections to the knockout holes
together with lock nuts, then secure them against
the control box side panel.
xReceiver cable wires 8must pass through the
upper conduit hole.
Make sure the receiver cable is inserted from
insideof the control box.
Connect receiver cable connector to control box
wire connector and fix it to the power supply cord
holder as shown in the diagram.
Insert firmly the connector of receiver cable 8to
connector at control box of indoor unit.
Knockout holes
Connectors
Lock Nuts
Control Box
Plugs
Screws
Control Box cover
xConnection cable between indoor unit and
outdoor unit should be UL listed or CSA approved
4 conductor wires minimum AWG16 in
accordance with local electric codes.
oEnsure that the terminal numbers on the
indoor unit are connected to the same
terminal numbers on the outdoor unit by the
right coloured wires as shown in the diagram.
oEarth lead wire should be longer than the
other lead wires as shown in the diagram for
electrical safety purpose in case the cord slips
out from the anchorage.
oSecure the cable onto the control board with
the holder (clamper).
Terminals on the indoor unit 1 2 3
Colour of wires
Terminals on the outdoor unit 1 2 3
When the wall is hollow, please be sure to use the sleeve
for tube ass’y to prevent dangers caused by mice biting the
connection cable.
Earth wire
(receiver cable)
Earth wire
(connection cable)
Holder for
connection cable
Indoor/outdoor connection terminal
Indoor/outdoor
connection cable
Fix the receiver cable to the holderFix receiver cable connector
WARNING
This equipment must be properly earthed.
xEnsure the colour of wires of outdoor unit and the
terminal Nos. are the same to the indoor’s
respectively.
xEarth wire shall be Yellow/Green (Y/G) in colour
and longer than other AC wires for safety reason.

42
11.1.6.1 Wire Stripping and Connecting Requirement
Conductor
over inserted
Conductor
fully inserted
Conductor not
fully inserted
7/32" (5 mm)
or more
Indoor/outdoor
connection
terminal board
(gap between wires) ACCEPT PROHIBITED PROHIBITED
Wire stripping
No loose strand when inserted
13/32" ± 1/32"
10 ± 1 mm
WARNING
RISK OF FIRE
JOINING OF WIRES MAY CAUSE
OVERHEATING AND FIRE.
OR
OR
OR
Use complete wire without joining.
Use approved socket and plug with earth pin.
Wire connection in this area must follow to national wiring rules.
Do not joint wires

43
11.2 Outdoor Unit
11.2.1 Select the Best Location
11.2.2 Install the Outdoor Unit
xAfter selecting the best location, start installation to Indoor/Outdoor Unit Installation Diagram.
1 Fix the unit on concrete or rigid frame firmly and horizontally with a bolt nut (ø 13/32" (ø10 mm)).
2 When installing at roof, please consider strong wind and earthquake.
Please fasten the installation stand firmly with bolt or nails.
AB
C
D
Model A B C D
E9SD3UAW,
E12SD3UAW
22 7/16"
(570 mm)
4 1/8"
(105 mm)
23/32"
(18.5 mm)
12 19/32"
(320 mm)
E18SD3UAW 24 1/8"
(613 mm)
5 5/32"
(131 mm)
5/8"
(16 mm)
14 3/16"
(360.5 mm)
11.2.3 Connect the Piping
11.2.3.1 Connecting the Piping to
Indoor
Please make flare after inserting flare nut (locate at
joint portion of tube assembly) onto the copper pipe.
(In case of using long piping)
Connect the piping
xAlign the center of piping and sufficiently tighten
the flare nut with fingers.
xFurther tighten the flare nut with torque wrench in
specified torque as stated in the table.
11.2.3.2 Connecting the Piping to
Outdoor
Decide piping length and then cut by using pipe cutter.
Remove burrs from cut edge.
Make flare after inserting the flare nut (locate at valve)
onto the copper pipe.
Align center of piping to valve and then tighten with
torque wrench to the specified torque as stated in the
table.
To r q u e
wrench
Spanner
or Wrench
11.2.3.3 Connecting the Piping to
Outdoor Multi
Decide piping length and then cut by using pipe cutter.
Remove burrs from cut edge.
Make flare after inserting the flare nut (locate at valve)
onto the copper pipe.
Align center of piping to valve and then tighten with
torque wrench to the specified torque as stated in the
table.
Applicable to
Liquid and Gas side of
CS-E9SD3UAW
Liquid side of
CS-E12SD3UAW
CS-E18SD3UAW
Hall Union Flare Nut
(Auxiliary pipe) (Connection pipe)
Torque Wrench
for Flare Nut
Wrench
(Adjustable Wrench)
Male side
Male side
Female side
Female side
Applicable to
Gas side of
CS-E12SD3UAW
CS-E18SD3UAW
Hall Union Flare Nut
Pipe Size
Reducer
Packing
Torque Wrench for Flare
Nut and Pipe Size Reducer
Wrench
(Adjustable Wrench)
(Connection pipe)
(Auxiliary pipe)
11.2.3.4 Gas Leak Checking
Pressure test to system to 400 PSIG with dry nitrogen, in stages. Thoroughly leak check the system. If the pressure
holds, release the nitrogen and proceed to section 4.
Do not over tighten, overtightening may cause gas leakage.
Piping size Torque
1/4" (6.35 mm) 13.3 Ibf•ft [18 N•m (1.8 kgf•m)]
3/8" (9.52 mm) 31.0 Ibf•ft [42 N•m (4.3 kgf•m)]
1/2" (12.7 mm) 40.6 Ibf•ft [55 N•m (5.6 kgf•m)]
5/8" (15.88 mm) 47.9 Ibf•ft [65 N•m (6.6 kgf•m)]
3/4" (19.05 mm) 73.8 Ibf•ft [100 N•m (10.2 kgf•m)]

44
11.2.4 Evacuation of the Equipment
WHEN INSTALLING AN AIR CONDITIONER, BE SURE TO EVACUATE THE AIR INSIDE THE INDOOR UNIT AND
PIPES in the following procedure.
Gas side
Liquid side
Outdoor unit
Two-way valve
Three-way valve
Indoor unit
Vacuum
pump
Close
Close
1 Connect a charging hose with a push pin to the Low side of a charging set and the service port of the 3-way
valve.
2 Connect the micron gauge between vacuum pump and service port of outdoor units.
3 Turn on the power switch of the vacuum pump and make sure that connect digital micron gauge and to pull
down to a value of 500 microns.
4 To make sure micron gauge a value 500 microns and close the low side valve of the charging set and turn off
the vacuum pump.
5 Disconnect the vacuum pump house from the service port of the 3-way valve.
6 Tighten the service port caps of the 3-way valve at a torque of 13.3 Ibf•ft (18 N•m) with a torque wrench.
7 Remove the valve caps of both of the 2-way valve and 3-way valve. Position both of the valves to “Open”
using a hexagonal wrench (5/32" (4 mm)).
8 Mount valve caps onto the 2-way valve and the 3-way valve.
oBe sure to check for gas leakage.
xIf micron gauge value does not descend 500 microns, take the following measures:
-If the leak stops when the piping connections are tightened further, continue working from step 3.
-If the leak does not stop when the connections are retightened, repair location of leak.
-Do not release refrigerant during piping work for installation and reinstallation.
-Be careful with the liquid refrigerant, it may cause frostbite.

45
11.2.5 Connect the cable to the Outdoor Unit
xFor model E9SD3UAW, E12SD3UAW
1 Remove
Top panel.
2 Remove Control Board Cover (Resin and
Metal).
3 Remove Plugs.
4 Fix the conduit connectors to the knockout
holes with lock-nuts, then secure them against
the side panel.
5 All wires pass through conduits.
6 Connection cable between indoor unit and
outdoor unit should be UL listed or CSA
approved 4 conductor wires minimum AWG16
in accordance with local electric codes.
7 Wire connection to the power supply
(208/230V 60Hz) through circuit breaker.
oConnect the UL listed or CSA approved
wires minimum AWG14 to the terminal
board, and connect the other end of the
wires to ELCB / GFCI.
Control Board
Metal Cover
To p P a n e l
Power
Supply
Wires
Lock Nuts
Knockout
Holes
Plugs
Side Panel
Connectors
Control Board
Cover (Resin)
8 Connect the power supply cord and connection cable between indoor unit and outdoor unit according to the
diagram below.
Outdoor Unit
1
2
3
1
2
L1
L2
3
lanimreTlanimreT
Indoor Unit
Disconnect
Switch
Field supply
Grounding wire
Grounding wire min AWG16
* Ensure all connecting wire
between indoor unit and
outdoor unit and power supply
cord are installed in individual
conduit.
Power Supply
Single Phase
208/230V 60Hz
min AWG14
208/230V min AWG16
208/230V min AWG16
208/230V min AWG16
9 Secure the wire onto the control board with the holder (clamper).
10 After completing wiring connections, reattach the control board cover (Metal and Resin) and the top panel to
the original position with the screws.
11 For wire stripping and connection requirement, refer to instruction 11.1.6 of indoor unit.
Power
supply cord
Indoor & outdoor
connection cable
Terminal
Board
Earth
wire
longer
than
other AC
wires for
safety
reasons
Holder
Earth
wire
longer
than
other AC
wires for
safety
reasons
WARNING
This equipment must be properly earthed.
xEarth lead wire shall be Yellow/Green (Y/G) in colour and should be longer than other lead wires as shown in the
figure for electrical safety in case of slipping.

46
xFor model E18SD3UAW
1 Remove control board cover (Resin and
Metal).
2 Remove particular plate.
3 Remove plugs.
4 Fix the conduit connectors to the knockout
holes with lock-nuts, then secure them against
the side panel.
5 All wires pass through conduits & particular
plate’s opening hole.
6 Connecting wire between indoor unit and
outdoor unit should be UL listed or CSA
approved 4 conductor wires minimum AWG16
in accordance with local electric codes.
7 Wire connection to the power supply
(208/230V 60Hz) through circuit breaker.
oConnect the UL listed or CSA approved
wires minimum AWG12 to the terminal
board, and connect the other end of the
wires to ELCB / GFCI.
Control Board
Cover (Metal)
Lock Nuts
Knockout
Holes
Plugs
Connectors
Control Board
Cover (Resin)
Front Panel
Connecting Wires
Particular Plate’s
opening holes
Particular
Plate
8 Connect the power supply cord and connecting wire between indoor unit and outdoor unit according to the
diagram below.
Outdoor Unit
1
2
3
1
2
L1
L2
3
TerminalTerminal
Indoor Unit
Disconnect
Switch
Field supply
Grounding wire
Grounding wire min AWG16
Power Supply
Single Phase
208/230V 60Hz
min AWG12
208/230V min AWG16
208/230V min AWG16
208/230V min AWG16
* Ensure all connecting wire
between indoor unit and
outdoor unit and power supply
cord are installed in individual
conduit.
9 Secure the wire onto the control board with the holder (clamper).
10 After completing wiring connections, reattach the particular plate and control board cover (metal and resin) to
the original position with the screws.
11 For wire stripping and connection requirement, refer to instruction 11.1.6 of indoor unit.
Power
supply cord
Indoor & outdoor
connection cable
Terminal
Board
Terminal
Board
Holder
Holder
Earth
wire
longer
than
others
AC wires
for safety
reasons
Earth
wire
longer
than
others
AC wires
for safety
reasons
WARNING
This equipment must be properly earthed.
xEarth lead wire shall be Yellow/Green (Y/G) in colour and longer than other lead wires for electrical safety in case
of the slipping.

47
11.2.6 Piping Insulation
1 Please carry out insulation at pipe connection portion as mentioned in Indoor/Outdoor Unit Installation
Diagram. Please wrap the insulated piping end to prevent water from going inside the piping.
2 If drain hose or connecting piping is in the room (where dew may form), please increase the insulation by
using POLY-E FOAM with thickness 1/4" (6 mm) or above.
Switching the High State Switch (SW2)
xTo increase the air volume, open the control box and on the control board, switch the FAN switch (SW2) to “HI”.
xSee the diagram for “Connecting the Indoor/Outdoor Connection Cable”.
Note: Enabling Long-range Remote Control
xTo maintain EMC emission limits, cabling interconnecting the HA terminal and subsequent opto-coupler, must be
no more than 6.2 ft (1.9 m) length.
xLoop four turns of this cable through a suitable small EMC ferrite toroid, and protect with a short length of large
diameter heat-shrink tube.
xThere is no similar length limit for cable following on from the opto-coupler isolation.
DISPOSAL OF OUTDOOR UNIT DRAIN WATER
xIf a drain elbow is used, the unit should be placed
on a stand which is taller than 1 3/16" (30 mm).
xIf the unit is used in an area where temperature
falls below 32°F (0°C) for 2 or 3 days in
succession, it is recommended not to use a drain
elbow, for the drain water freezes and the fan will
not rotate.
HoseDrain elbow ¥
Install the hose at an angle so that the water smoothly flows out.
CHECK THE DRAINAGE
Check after connecting the power supply.
xPour approximately 600 cc of water into the drain
pan of the main unit using a squeeze bottle, etc.
xPress the drain test run switch on the control
board in the control box to start the drain motor
and check whether the water drains normally.
(The drain motor operates for approximately
5 minutes and then stops automatically.)
(See the diagram for “Connecting the
Indoor/Outdoor Connection Cable”.)
Heat
exchanger
Drain pan
Squeeze bottle
Approximately
600 cc of water