Sanyo C2432 User Manual

INSTALLATION INSTRUCTIONS  
– Split System Air Conditioner –  
COOL/DRY Model  
ATTENTION  
Model Combinations  
Use this manual when installing combined  
models of indoor unit KS2432A and outdoor  
unit C2432 or CL2432 only.  
Combine indoor and outdoor units only as listed  
below.  
On items not included in this manual, see the  
Installation Instructions (No. 85464179694003)  
packed in the outdoor unit model C2432 or  
CL2432.  
Indoor Unit  
Outdoor Units  
C2432  
KS2432A  
CL2432  
Power supply: 60Hz, single-phase, 208/230V  
Units should be installed by a licensed contractor  
according to local code requirements.  
Contents  
Page  
IMPORTANT!  
Please Read Before Starting.................................. 1  
4. REFRIGERANT TUBING.................................. 13  
4-1. Indoor Unit Tubing  
4-2. Outdoor Unit Tubing  
1. GENERAL.......................................................... 2  
1-1. Tools Required for Installation (not supplied)  
1-2. Accessories Supplied with Indoor Unit  
1-3. Optional Copper Tubing Kit  
4-3. Connecting Tubing between Indoor and  
Outdoor Units  
4-4. Insulation of Refrigerant Tubing  
4-5. Taping the Tubes  
1-4. Type of Copper Tube and Insulation Material  
1-5. Field Wiring  
4-6. Finishing the Installation  
1-6. Additional Materials Required for Installation  
5. REMOTE CONTROL UNIT INSTALLATION  
POSITION ......................................................... 16  
5-1. Mounting on a Wall  
2. INSTALLATION SITE SELECTION................... 3  
2-1. Indoor Unit  
2-2. Outdoor Unit  
3. HOW TO INSTALL THE INDOOR UNIT ........... 5  
3-1. Remove the Rear Panel from the Unit  
3-2. Make a Hole  
3-3. Install the Rear Panel on the Wall  
3-4. Remove the Grille to Install the Indoor Unit  
3-5. Shape the Indoor Side Tubing  
3-6. Wiring Instructions  
3-7. Recommended Wire Length and Diameter  
3-8. Wiring Instructions for Inter-unit Connections  
3-9. Mounting  
3-10. Drain Hose  
In Canada  
SANYO FISHER COMPANY  
SANYO Canada Inc.  
A DIVISION OF SANYO NORTH AMERICA CORPORATION 300 Applewood Crescent  
21605 Plummer Street  
Chatsworth, CA 91311 U.S.A.  
Concord, Ontario  
L4K 5C7, Canada  
85264189704003 © SANYO 2003  
W
1. General  
6. Sabre saw or key hole saw  
7. Hacksaw  
This booklet briefly outlines where and how to install the  
air conditioning system. Please read over the entire set  
of instructions for the indoor and outdoor units and make  
sure all accessory parts listed are with the system before  
beginning.  
8. Core bits  
9. Hammer  
10. Drill  
11. Tube cutter  
1-1. Tools Required for Installation (not supplied)  
1. Standard screwdriver  
12. Tube flaring tool  
13. Torque wrench  
14. Adjustable wrench  
15. Reamer (for deburring)  
16. Pipe bending tool (spring bender)  
2. Phillips head screwdriver  
3. Knife or wire stripper  
4. Tape measure  
5. Carpenter’s level  
1-2. Accessories Supplied with Indoor Unit  
Table 1  
Parts  
Figure  
Qty  
Parts  
Figure  
Qty  
Parts  
Figure  
Qty  
×
×
×
×
×
×
1-3. Optional Copper Tubing Kit  
Table 2  
Outer Diameter  
Copper tubing for connecting the outdoor unit to the  
indoor unit is available in kits which contain the narrow  
and wide tubing, fittings and insulation. Consult your  
nearest sales outlet or A/C workshop.  
Model  
Narrow Tube  
3/8"  
Wide Tube  
3/4"  
KS2432A  
2. Foamed polyethylene insulation for the specified  
copper tubes as required to precise length of tubing.  
Wall thickness of the insulation should be not less  
than 5/16".  
NOTE  
For rear-left tubing, optional tube connection (C) (APR-  
EN46U1B) is necessary. See page 13.  
Also consult your nearest sales outlet or A/C workshop.  
1-5. Field Wiring  
1-4. Type of Copper Tube and Insulation Material  
Use insulated copper wire for field wiring. Wire size  
varies with the total length of wiring. Refer to 3-6. Wiring  
Instructions for details.  
If you wish to purchase these materials separately from a  
local source, you will need:  
1. Deoxidized annealed copper tube for refrigerant tub-  
ing as detailed in Table 2.  
Check local electrical codes  
CAUTION  
and regulations before obtain-  
ing wire. Also, check any spec-  
ified instructions or limitations.  
When cutting tubing, add approximately 1' to 1'4" to  
each tube length to reduce vibration between the air  
conditioning units.  
2
Indoor unit  
1-6. Additional Materials Required for Installation  
1. Refrigeration (armored) tape  
2. Insulated staples or clamps for connecting wire  
(See local codes)  
3. Putty  
4. Refrigeration lubricant  
5. Clamps or saddles to secure refrigerant tubing  
Drain hose  
Outside drainage  
Fig. 1  
2. Installation Site Selection  
2-1. Indoor Unit  
6 inches min.  
6 inches  
min.  
6 inches  
min.  
To prevent abnormal heat gen-  
WARNING  
eration and the possibility of  
fire, do not place obstacles,  
enclosures and grilles in front  
of or surrounding the air condi-  
tioner in a way that may block  
air flow.  
Front View  
Fig. 2  
AVOID:  
G direct sunlight.  
Tubing length (L)  
INDOOR  
UNIT  
G nearby heat sources that may affect performance of  
the unit.  
G areas where leakage of flammable gas may be  
Elevation  
difference (H)  
OUTDOOR  
UNIT  
expected.  
G places where large amount of oil mist exist.  
Fig. 3a  
DO:  
G select an appropriate position from which every corner  
of the room can be uniformly cooled. (High on a wall  
is best.)  
CAUTION  
G select a location that will hold the weight of the unit.  
Indoor unit  
For stable operation of  
the air conditioner, do  
Wall  
G select a location where tubing and drain hose have  
not install wall-mounted  
type indoor units less  
than 5 ft. from floor  
level.  
the shortest run to the outside. (Fig. 1)  
G allow room for operation and maintenance as well as  
Minimum height  
from floor level  
5 ft.  
unrestricted air flow around the unit. (Fig. 2)  
G install the unit within the maximum elevation differ-  
ence (H) above or below the outdoor unit and within a  
total tubing length (L) from the outdoor unit as detailed  
in Table 3 and Fig. 3a.  
Floor level  
Fig. 3b  
Table 3  
Max. Allowable Tubing  
Length at Shipment  
(ft.)  
Limit of Tubing  
Length (L)  
(ft.)  
Limit of Elevation  
Difference (H)  
(ft.)  
Required Amount of  
Additional Refrigerant  
(oz./ft.)*  
Model  
C2432, CL2432  
25  
132  
50  
0.27  
* If total tubing length becomes 25 to 132 ft. (max.), additional refrigerant (R22) charge of 0.27 oz./ft. is required.  
No additional charge of compressor oil is necessary.  
3
2-2. Outdoor Unit  
AVOID:  
Exhaust fan  
Heat source  
Hot air  
G heat sources, exhaust fans, etc. (Fig. 4a)  
G damp, humid or uneven locations.  
Outdoor unit  
DO:  
G choose a place as cool as possible.  
G choose a place that is well ventilated.  
Fig. 4a  
G allow enough room around the unit for air intake/  
exhaust and possible maintenance. (Fig. 4b)  
Obstacle above  
G provide a solid base a minimum of 6 inches above  
ground level to reduce humidity and protect the unit  
against possible water damage and decreased service  
life. (Fig. 5)  
Min.  
1 inch  
Min.  
1 inch  
Min.  
7 ft.  
Min. 4 inches  
Air  
dis-  
G use lug bolts or equal to bolt down unit, to reduce  
charge  
vibration and noise.  
Min. 2 ft.  
Ground  
Fig. 4b  
Air in  
Air in  
Air  
discharge  
Concrete block  
4 inch × 1 ft. 4 inch  
beams or equal  
Min. 6 inch  
Anchor bolts  
(4 pieces)  
Fig. 5  
4
3. How to Install the Indoor Unit  
3-1. Remove the Rear Panel from the Unit  
Remove and discard the set screws and take off the rear  
panel. (Fig. 6)  
NOTE  
Tubing can be extended in 3 directions as shown in  
Fig. 7a. Select the direction you need providing the  
shortest run to the outside unit.  
Set screws for transportation only  
Fig. 6  
3-2. Make a Hole  
Right-rear  
tubing  
(recommended)  
Left-rear tubling  
(1) Remove the rear panel from the indoor unit and  
place it on the wall at the location selected. Make  
sure the unit is horizontal, using a carpenters level  
or tape measure to measure down from the ceiling.  
Right tubing  
(2) Determine which side of the unit you should make  
the hole. (Fig. 7b)  
Fig. 7a  
(3) Before making a hole, check carefully that no studs  
or pipes are directly run behind the spot to be cut.  
In case of left-rear or right-rear tubing  
Also avoid areas where electri-  
CAUTION  
cal wiring or conduits are  
located.  
The above precautions are also applicable if tubing  
goes through the wall in any other location.  
Center of  
left-rear  
tubing hole  
Center of  
right-rear  
tubing hole  
(4) Using a sabre saw, key hole saw or hole-cutting drill  
attachment, cut a hole in the wall. See Table 4 and  
Fig. 8.  
Fig. 7b  
NOTE  
Table 4  
Hole should be made at a slight downward slant to the  
outdoor side.  
Hole Dia. (inch)  
3-3/16"  
Indoor  
side  
Outdoor  
side  
(5) Measure the thickness of the wall from the inside  
edge to the outside edge and cut PVC pipe at a  
slight angle 1/4" shorter than the thickness of the  
wall. (Fig. 9)  
(6) Place the plastic cover over the end of the pipe (for  
indoor side only) and insert in the wall. (Fig. 10)  
Fig. 8  
PVC pipe (locally purchased)  
INSIDE  
OUTSIDE  
PVC pipe  
Wall  
Plastic cover  
(Field Supply)  
Slight  
angle  
Cut at slight angle  
Fig. 9  
Fig. 10  
5
3-3. Install the Rear Panel on the Wall  
Be sure to confirm that the wall is strong enough to sus-  
pend the unit.  
See either Item a) or b) below depending on the wall  
type.  
a) If Wooden Wall  
Fig. 11  
(1) Attach the rear panel to the wall with the 10 screws  
provided. (Fig. 11)  
If you are not able to line up the holes in the rear  
panel with the beam locations marked on the wall,  
use toggle bolts to go through the holes on the panel  
or drill 3/16 inch dia. holes in the panel over the stud  
locations and then mount the rear panel.  
Fig. 12  
(2) Double check with a ruler or carpenters level that  
the panel is level. This is important to install the unit  
properly. (Fig. 12)  
1-3/16 inches or more  
(3) Make sure the panel is flush against the wall. Any  
space between the wall and unit will cause noise and  
vibration.  
3/16 inch  
dia. hole  
b) If Block, Brick, Concrete or Similar Type Wall  
Rawl plug  
(Field supply)  
Make 3/16 inch dia. holes in the wall. Insert rawl plugs  
for appropriate mounting screws. (Fig. 13)  
Fig. 13  
3-4. Remove the Grille to Install the Indoor Unit  
Basically, these models can be installed and wired with-  
out removing the grille. If access to any internal part is  
needed, follow the steps as given below:  
Grille  
Air intake grille  
How to remove the grille  
(1) Set the 2 flaps in the horizontal position.  
(2) Unscrew the 3 screws. (Fig. 14a)  
(3) Remove the grille.  
(a) Hold both corners of the air intake grille, then pull  
out and up to open. (Fig. 14b)  
Fig. 14a  
(b) Use a standard screwdriver to push up the 3 tabs  
to remove the grille. (Fig. 14b)  
Air intake grille  
(c) Pull the lower part of the grille toward you to  
remove. (Fig. 14a)  
Fig. 14b  
6
How to replace the grille  
(1) Close the flaps.  
(2) Reinstall the grille into the lower part while aligning  
its tabs on the upper part. (Fig. 15a) Insert the tabs  
in the slots and push the lower part of the grille back  
into position.  
Fig. 15a  
(3) Press at each of the 5 tabs to completely close the  
grille. Make sure that the grille and frame are firmly  
fitted together. (Fig. 15b)  
3-5. Shape the Indoor Side Tubing  
1) Arrangement of tubing by directions  
a) Right tubing  
The corner of right frame needs to be cut by a  
hacksaw or the like. (Fig. 16)  
Fig. 15b  
b) Right-rear or left-rear tubing  
Frame  
In this case, the corner of the frame need not be  
cut.  
Right tubing  
outlet  
2) To mount the indoor unit on the rear panel:  
Hang the 3 mounting slots of the unit on the  
upper tabs of the rear panel. (Fig. 17)  
3-6. Wiring Instructions  
Fig. 16  
General precautions on wiring  
Tab  
Mounting slot  
1) Before wiring, confirm the rated voltage of the unit as  
shown on its nameplate, then carry out the wiring  
closely following the wiring diagram.  
2) Provide a power outlet to be used exclusively for  
each unit, with a power supply disconnect and circuit  
breaker for overcurrent protection provided in the  
exclusive line.  
Fig. 17  
3) To prevent possible hazard due to insulation failure,  
the unit must be grounded.  
4) Each wiring connection must be done tightly and in  
accordance with the wiring system diagram. Wrong  
wiring may cause the unit to misoperate or become  
damaged.  
5) Do not allow wiring to touch the refrigerant tubing,  
compressor, or any moving parts of the fan.  
6) Unauthorized changes in the internal wiring can be  
very dangerous. The manufacturer will accept no  
responsibility for any damage or misoperation that  
occurs as a result of such unauthorized changes.  
7
3-7. Recommended Wire Length and Diameter  
Regulations on wiring diameter differ from locality to  
locality. For field wiring requirements, please refer to  
your local electrical codes. Carefully observe these regu-  
lations when carrying out the installation.  
Table 5 lists recommended wire lengths and diameters  
for power supply systems.  
Refer to the wiring system diagram (Fig. 18) for the  
meaning of Aand Bin Table 5.  
Table 5  
(A) Power Supply  
Wiring Length (ft.)  
(B) Inter-Unit  
Power Line  
Fuse or Circuit  
Capacity  
AWG  
Model  
(#12)  
(#14)  
C2432, CL2432  
69 (Max.)  
164 (Max.)  
25A  
#
AWG (American Wire Gauge)  
WIRING SYSTEM DIAGRAM  
G Be sure to comply with local  
codes on running the wire  
from the indoor unit to the  
WARNING  
INDOOR  
UNIT  
OUTDOOR  
UNIT  
(Inter-unit)  
power line  
230V/208V  
Terminal  
Terminal  
outdoor unit (size of wire and  
wiring method, etc.).  
1
2
1
2
230V/208V  
G Each wire must be firmly  
connected.  
Grounding line  
230V/208V  
G
4
G
4
(A)  
G No wire should be allowed to  
touch refrigerant tubing, the  
compressor, or any moving  
part.  
(B)  
L1  
L2  
Disconnect  
switch  
Field supply  
G
Grounding  
line  
To avoid the risk of electric  
shock, each air conditioner  
unit must be grounded.  
Fig. 18  
WARNING  
CAUTION  
Be sure to connect the power  
supply line to the outdoor unit  
as shown in the wiring dia-  
gram. The indoor unit draws its  
power from the outdoor unit.  
8
3-8. Wiring Instructions for Inter-unit Connections  
(1) Insert the inter-unit wiring (according to local codes)  
into the through-the-wall PVC pipe. Run the wiring  
toward the indoor side allowing approx. 10 inch to  
extend from the wall face. (Fig. 19)  
Rear  
panel  
Wall  
Plastic  
cover  
(2) Route the inter-unit wiring from the back of the  
indoor unit and pull it toward the front for connection.  
(Fig. 20a, 20b)  
Wiring  
(3) Connect the inter-unit wiring to the corresponding  
terminals on the terminal plate (Fig. 20a, 20b) while  
referring to the wiring diagram.  
10 in.  
(4) Be sure to secure the wiring with the provided  
clamp.  
Fig. 19  
How to remove the cover plate  
To access the terminal plate inside the indoor unit, follow  
these steps.  
Terminal  
plate  
(1) Using a Phillips screwdriver, take out the screw on  
the cover plate. (Fig. 20a, 20b)  
(2) Remove the cover plate.  
Cover plate  
Fig. 20a  
Inter-unit  
control line  
wiring  
Earth  
plate  
Lock nut  
Top of conduit  
connector  
Fig. 20b  
9
Solid wire  
Loose wiring may cause the  
terminal to overheat or result  
in unit malfunction. A fire haz-  
ard may also exist. Therefore,  
be sure all wiring is tightly  
connected.  
Loop  
WARNING  
Insulation  
Fig. 21a  
When connecting each power wire to the corresponding  
terminal, follow the instructions How to connect wiring to  
the terminaland fasten the wire securely tight with the  
fixing screw of the terminal plate.  
Stranded wire  
Ring  
connector  
How to connect wiring to the terminal  
G For solid core wiring (or F-cable)  
(1) Cut the wire end with a cutting pliers, then strip the  
insulation to expose the solid wire about 1 inch.  
(Fig. 21a)  
Fig. 21b  
Twist wire ends  
(2) Using a screwdriver, remove the terminal screw(s)  
on the terminal plate.  
(3) Using the pliers, bend the solid wire to form a loop  
suitable for the terminal screw.  
(4) Shape the loop wire properly, place it on the termi-  
nal plate and fix it securely with the removed termi-  
nal screw using a screwdriver.  
Fig. 21c  
G For stranded wiring  
Screw with  
special washer  
(1) Cut the wire end with a cutting pliers, then strip the  
insulation to expose the stranded wiring about 3/8  
inch and tightly twist the wire ends. (Figs. 21b and  
21c)  
Ring connector  
Terminal plate  
Screw with  
Wire  
special washer  
(2) Using a screwdriver, remove the terminal screw(s)  
on the terminal plate.  
Ring  
connector  
(3) Using a ring connector fastener or pliers, securely  
clamp each stripped wire end with a ring connector.  
(Fig. 21b)  
Wire  
Fig. 22  
(4) Place the ring connector wire, and replace and tight-  
en the removed terminal screw using a screwdriver.  
(Fig. 22)  
NOTE  
Being careful not to cut the wire, strip off the plastic insu-  
lation using a wire cutter or pliers. (Fig. 23)  
Fig. 23  
10  
3-9. Mounting  
G Right-side tubing  
Cover  
(1) Shape the refrigerant tubing so that it can easily go  
into the wall hole. (Fig. 24)  
Refrigerant  
tubing  
If using a stepladder, be careful  
CAUTION  
to keep your balance and not  
fall off. To prevent the unit  
from damage and avoid per-  
sonal injury, ask for someones  
help when feeding the tubing  
through the hole because the  
unit is heavy and difficult to  
hold in place.  
Inter-unit  
wiring  
Drain hose  
Fig. 24  
b
(2) Push the wiring, refrigerant tubing, and drain hose  
through the hole in the wall. Adjust the indoor unit so  
it is securely seated on the rear panel.  
a
b / a = 0.7 or more  
Pipe bending tool  
(3) Carefully bend the tubing (if necessary) to run along  
the wall in the direction of the outdoor unit and then  
tape as far as the fittings.  
Fig. 25  
The air conditioners perfor-  
CAUTION  
mance will be deteriorated if a  
tube is crushed. To prevent  
crushing of the tube, avoid  
sharp bends. Use a pipe bend-  
ing tool to bend the tube.  
(Fig. 25)  
Insulation  
(Field supply)  
Fig. 26  
Refrigerant tubing  
(4) Connect the refrigerant tubing to the outdoor unit.  
(After performing a leak test on the connecting part,  
insulate it with tubing insulation. (Fig. 26)) Also, refer  
to Section 4-3. Connecting Tubing between Indoor  
and Outdoor Units.  
(5) Assemble the refrigerant tubing, drain hose, and  
inter-unit wiring as shown in Fig. 27.  
Conduit  
Drain hose  
Inter-unit wiring  
Fig. 27  
11  
3-10. Drain Hose  
a) The drain hose should be slanted downward to the  
outdoors. (Fig. 28)  
Slant  
b) Never form a trap in the course of the hose.  
Indoor  
unit  
Drain  
hose  
c) If the drain hose will run in the room, insulate the  
hose with insulation* so that chilled condensation  
will not damage furniture or floors. (Fig. 29)  
Fig. 28  
* Foamed polyethylene or its equivalent is recom-  
mended.  
Do not supply power to the  
unit or operate it until all tub-  
ing and wiring to the outside  
unit are completed.  
WARNING  
Condensation  
Insulation material  
(locally purchased)  
must be used.  
Risk of Electric Shock  
Fig. 29  
12  
4. Refrigerant Tubing  
2. Mount the rear panel  
4-1. Indoor Unit Tubing  
1. Cut hole  
in wall  
B'  
B
G Rear-left tubing  
A'  
A
NOTE  
Wide tube  
For rear-left tubing, optional tube connection (C) (APR-  
EN46U1B) is necessary. Please consult your nearest  
sales outlet or A/C workshop.  
4-1/8"  
Rear View  
3. Cut  
4. Flare  
5. Connect  
Optional tube  
connection (C) 1/2"  
(Optional part)  
1. Make a 3-3/16" hole in the wall, centered on the  
crossing point between the triangle marks (A and B)  
on the rear panel. (Fig. 30a)  
2. Set the rear panel at its original position where it  
was installed with screws.  
Fig. 30a  
3. Cut the wide tube at a point 4-1/8" from the triangle  
mark.  
3. Cut wide tube  
4. Flare wide tube  
4. Remove the 1/2" flare nut from the optional tube  
connection (C), place it on the cut wide tube, and  
then flare the wide tube. (Fig. 30b)  
5. Connect tube  
assy  
7. Connect  
narrow tube  
3/8"  
5. Connect the optional tube connection (C) to the wide  
tube.  
6. Connect the 3/4" tube to the connected optional tube  
connection.  
Optional tube  
connection (C) 1/2"  
(Optional part)  
7. Connect the 3/8" tube to the narrow tube.  
8. Cover the narrow and wide tubes with insulation  
material.  
Narrow  
tube 3/8"  
6. Connect  
wide tube  
3/4"  
G Rear-right tubing  
9. Make a 3-3/16" hole in the wall, centered on the  
crossing point between the triangle marks (A' and B')  
on the rear panel. (Fig. 30a)  
Fig. 30b  
Narrow tube valve  
Wide tube valve  
10. Connect the 3/4" tube to the wide tube.  
11. Connect the 3/8" tube to the narrow tube.  
12. Cover the narrow and wide tubes with insulation  
material.  
Mounting valve  
Packing B  
Clamp  
4-2. Outdoor Unit Tubing  
Packing A  
1. Connect a wide tube (3/4") to the wide tube valve.  
(Fig. 31a)  
2. Connect the tube assy, which was packed in the  
indoor unit carton, to the narrow tube valve.  
Tube assy  
Narrow tube (3/8")  
Wide tube (3/4")  
3. Before attaching the tube assy to the mounting valve,  
wrap the supplied packing A (3/4" × 1-3/8" × T3/16")  
onto the 5/16" tube of the tube assy to avoid direct  
contact of the tube assy with the mounting valve.  
(Fig. 31b, 31c)  
Fig. 31a  
13  
4. Similarly arrange the supplied packing B (2-3/8" ×  
1-3/16" × T3/16") on the mounting valve. (Fig. 31b,  
31c)  
Clamp B  
Packing A  
3/16" hole  
Packing B  
φ
5. Insert clamp A in the extracted round hole (φ 3/16")  
on the mounting valve, and bind the tube assy and  
packing A. (Fig. 31b)  
Clamp A  
6. Insert clamp B in the square hole of the mounting  
valve, and bind it so the tube assy is in contact with  
packing B. (Fig. 31c)  
Fig. 31b  
7. Connect the narrow tube (3/8") between the units.  
When tightening the flare nut, use the double-wrench  
method. (Torque: 300 to 340 lbs.·in) (Fig. 32)  
Clamp B  
8. After completing the tubing work, check that the tube  
assy is not in direct contact with the 3/4" tube.  
Square hole  
Packing B  
4-3. Connecting Tubing between Indoor and  
Outdoor Units  
Clamp A  
Packing A  
a) Tightly connect the indoor side refrigerant tubing  
extended from the wall with the outdoor side tubing.  
(Fig. 33)  
Fig. 31c  
b) To fasten the flare nuts, apply specified torque as:  
Tube assy  
Table 6  
Tube Dia.  
3/8inch  
Tightening Torque  
.
.
Approx. 300 340 lbs. in (35 40 N m)  
.
.
3/4inch  
Approx. 870 1,040 lbs. in (100 120 N m)  
4-4. Insulation of Refrigerant Tubing  
(For C2432 and CL2432)  
Narrow tube  
IMPORTANT  
To prevent heat loss and wet floors due to dripping of  
condensation, both tubes must be well insulated with  
a proper insulation material. The thickness of the insu-  
lation should be a minimum 5/16 inch. (Fig. 35)  
Fig. 32  
Torque wrench  
4-5. Taping the Tubes  
Spanner  
Indoor unit  
After a tube has been insulated,  
CAUTION  
never try to bend it into a nar-  
row curve, as this may cause  
the tube to break or crack.  
Outdoor unit  
Fig. 33  
(1) At this time, the 2 refrigerant tubes (and electrical  
wire if local codes permit) should be taped together  
with armoring tape. The drain hose may also be  
included and taped together as 1 bundle with the  
tubing.  
Insulation  
(Field supply)  
Fig. 34  
14  
(2) Wrap the armoring tape from the bottom of the out-  
door unit to the top of the tubing where it enters the  
wall. As you wrap the tubing, overlap half of each  
previous tape turn. (Fig. 36)  
Insulation  
Thickness:  
min. 5/16"  
Min.  
5/16"  
(3) Clamp the tubing bundle to the wall, using 1 clamp  
approx. every 4 ft.  
Fig. 35  
NOTE  
Do not wind the armoring tape too tightly since this will  
decrease the heat insulation effect. Also be sure the con-  
densation drain hose splits away from the bundle and  
drips clear of the unit and the tubing.  
Clamp  
Insulated tubes  
4-6. Finishing the Installation  
After finishing insulating and taping over the tubing, use  
sealing putty to seal off the hole in the wall to prevent  
rain and draft from entering. Fig. 37 shows refrigerant  
tubing taped separately from the drain hose.  
Fig. 36  
Apply putty here  
Tubing  
Fig. 37  
15  
5. Remote Control Unit Installation Position  
The remote control unit can be operated from either a  
non-fixed position or a wall-mounted position.  
To ensure that the air conditioner operates correctly, do  
not install the remote control unit in the following places:  
G In direct sunlight  
G Behind a curtain or other place where it is covered  
G More than 26 ft. (8 m) away from the air conditioner  
G In the path of the air conditioners airstream  
G Where it may become extremely hot or cold  
G Where it may be subject to electrical or magnetic  
interference  
5-1. Mounting on a Wall  
Truss-head  
tapping screw  
5/32 × 5/8" (4 × 16mm supplied)  
1)  
Confirm the indoor unit beeps when the ON/OFF  
button is pressed at the wall location where the  
remote control unit is to be attached, then attach the  
holder to the wall. (Fig. 38)  
2) When taking out the remote control unit, pull it  
from the holder.  
When using the remote control unit  
Remote  
control  
unit holder  
Point the transmission portion of the remote con-  
trol unit at the receiver area of the indoor unit  
when operating the remote control unit, and dur-  
ing operation of the air conditioner.  
Fig. 38  
Do not place objects that may block the transmit-  
ted signals between the receiver and the remote  
control unit.  
When mounting the remote control unit to  
prevent theft  
Truss-head  
tapping screw  
5/32 × 5/8" (4 × 16mm supplied)  
1) Mount the holder to the wall with one of the  
screws (using only the hole in the top of the  
holder) (Fig. 39).  
Holder  
2) Remove the cover of the remote control unit and  
take out the batteries. Next, place the remote  
control unit in the holder.  
3) Fasten both the remote control unit and holder to  
the wall with the remaining screw (using the hole  
in the bottom of the holder).  
Holder  
4) Install the batteries in the remote control unit and  
close the cover.  
Fig. 39  
16  

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